fix lint error

* Proof-of-concept pre-built custom sql.js

* Rewrite Makefile as a couple of comprehensible Python scripts

* Add link to a blog post about transitive closure in SQLite

* Remove eval extension -- no much point as it only returns a string

* Consistently use existing Path objects

* Add basic tests scalar functions from extension-functions.c

* Test presence of functions from the rest of built extensions

* Use the same sqlite.com domain

* Add a couple SQLite compile flags that may make it a bit faster

* Add regexpi function test

* Add node about regexpi and REGEXP operator

* Workaround first build failure, rebuild lock file and minor fixes

.github/workflows/config.grenrc.js

@@ -0,0 +1,17 @@
+module.exports = {
+  dataSource: 'milestones',
+  ignoreIssuesWith: [
+    'wontfix',
+    'duplicate'
+  ],
+  milestoneMatch: 'v{{tag_name}}',
+  template: {
+    issue: '- {{name}} [{{text}}]({{url}})',
+    changelogTitle: "",
+    release: "{{body}}",
+  },
+  groupBy: {
+    'Enhancements': ["enhancement", "internal"],
+    'Bug fixes': ["bug"]
+  }
+}

.github/workflows/main.yml

@@ -15,6 +15,10 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: 10.x
+
+    - name: Update npm
+      run: npm install -g npm@7
+
     - name: npm install and build
       run: |
         npm install
@@ -25,16 +29,26 @@ jobs:
         cd dist
         zip -9 -r  dist.zip . -x "js/*.map"
 
+    - name: Create Release Notes
+      run: |
+        npm install github-release-notes@0.16.0 -g
+        gren changelog --generate  --config="/.github/workflows/config.grenrc.js"
+      env:
+        GREN_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
     - name: Create release
       uses: ncipollo/release-action@v1
       with:
         artifacts: "dist/dist.zip"
         token: ${{ secrets.GITHUB_TOKEN }}
+        bodyFile: "CHANGELOG.md"
 
     - name: Deploy 🚀
-      uses: JamesIves/github-pages-deploy-action@3.6.2
+      uses: JamesIves/github-pages-deploy-action@4.1.1
       with:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        BRANCH: build # The branch the action should deploy to.
-        FOLDER: dist/ # The folder the action should deploy.
-        CLEAN: false # Automatically remove deleted files from the deploy branch
+        token: ${{ secrets.GITHUB_TOKEN }}
+        branch: build # The branch the action should deploy to.
+        folder: dist/ # The folder the action should deploy.
+        clean: true # Automatically remove deleted files from the deploy branch
+        clean-exclude: .nojekyll
+

.github/workflows/test.yml

@@ -4,6 +4,9 @@ on:
   push:
     branches:
     - 'master'
+  pull_request:
+    branches:
+    - 'master'
 
 jobs:
   test:
@@ -15,16 +18,20 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: 10.x
-    - name: Install chromium
-      run:  
-        sudo DEBIAN_FRONTEND=noninteractive apt-get update && 
-        sudo DEBIAN_FRONTEND=noninteractive apt-get install -y chromium-browser
+    - name: Install browsers
+      run: |
+        export DEBIAN_FRONTEND=noninteractive
+        sudo apt-get update
+        sudo apt-get install -y chromium-browser firefox
+
+    - name: Update npm
+      run: npm install -g npm@7
 
     - name: Install the project
       run: npm install
 
     - name: Run lint
-      run: npm run lint
+      run: npm run lint -- --no-fix
 
     - name: Run karma tests
       run: npm run test

README.md

@@ -4,153 +4,23 @@
 
 # sqliteviz
 
-Sqliteviz is a single-page application for fully client-side visualisation of SQLite databases or CSV.
+Sqliteviz is a single-page offline-first PWA for fully client-side visualisation of SQLite databases or CSV files.
 
-## Get started
+With sqliteviz you can:
+- run SQL queries against a SQLite database and create [Plotly][11] charts based on the result sets
+- import a CSV file into a SQLite database and visualize imported data
+- manage queries and chart settings and run them against different databases
+- import/export queries and chart settings to/from a JSON file
+- export a modified SQLite database
+- use it offline from your OS application menu like any other desktop app
 
-The latest release of sqliteviz is running on [Github pages][6]. The simplest way to start is to use sqliteviz there.
+https://user-images.githubusercontent.com/24638357/117355518-fa332680-aeb2-11eb-8a69-fbcea4f7aeb0.mp4
 
-### Choose a databese or CSV file
+## Quickstart
+The latest release of sqliteviz is deployed on GitHub Pages at [lana-k.github.io/sqliteviz][6].
 
-You can choose a database or CSV file right on the welcom page (fig. 1). The supported file extentions: `.csv`, `.db`,`.sqlite` and `.sqlite3`.
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_welcome.png" width="400"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 1: Welcome page
-  </sub>
-</p>
-
-If you choose a CSV file it will be parsed. Then sqliteviz creates a new database with data from the CSV in `csv_import` table. You can change parsing settings in the dialog which is shown automatically if you choose a CSV file (fig. 2).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_csv.png" width="650"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 2: Import CSV dialog
-  </sub>
-</p>
-
-Choosing a database or CSV file is not a mandatory step. You can skip it and manipulate queries in sqliteviz without a database. Choose a database or CSV later in the left panel of the `Editor` when it's time to run a query (fig. 3).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_editor.png" width="650"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 3: Editor (neither database nor CSV is chosen) 
-  </sub>
-</p>
-
-After chosing a database or CSV you can browse tables, columns and their types in the left panel of the `Editor` (fig. 4).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_editor_with_db.png" width="650"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 4: Editor (database is chosen)
-  </sub>
-</p>
-
-### Create a query
-
-#### Open a new tab
-
-Press `Create` button in the top toolbar or use `Ctrl+b`(`Cmd+b` for MacOS) keyboard shortcut to open a new tab for a query. The tab consists of two parts: a query text editor on the top and a result panel on the bottom.
-
-In the query text editor part you can specify a `SELECT` statement for getting data.
-
-The result panel has two modes: table view (fig. 4, fig. 5) and chart view (fig. 3). In the table view you can see the result of query running (fig. 5). In the chart view there is a chart editor component which allows to build a visialization from the result set.
-
-#### Run a query
-
-Press `Run` button in the top toolbar or use `Ctrl+r` or `Ctrl+Enter`(`Cmd+r` or `Cmd+Enter` for MacOS) keyboard shortcut to execute a query in the current opened tab.
-
-> **Note:**  Running is not available if neither a database nor CSV was chosen or a query for the current tab is not specified.
-
-The query result will be displayed in the result panel in table mode (fig. 5).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_result.png" width="650"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 5: Query results
-  </sub>
-</p>
-
-#### Create a chart
-
-After running a query you can switch result panel to the chart mode and create a chart with a `react-chart-editor` component. The same component with some additional features is used in Plotly Chart Studio. Explore its [documentation][7] to learn how to build charts with `react-chart-editor`.
-
-### Save a query
-
-Press `Save` button in the top toolbar or use `Ctrl+s`(`Cmd+s` for MacOS) keyboard shortcut to save a query in the current opened tab to local storage of your browser.
-
-After that the query will be in the list on `My queries` page.
-
-> **Note:**  Only the text of the query and chart settings will be saved. The result of the query execution won't be saved.
-
-## Working with saved queries
-
-You can find all queries that you saved in `My queries` (fig. 6).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_my_queries.png" width="600"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 6: My queries
-  </sub>
-</p>
-
-To manipulate one query hover the cursor over the row with the query and choose the action:
-
-* <img src="src/assets/images/rename.svg"/> - rename a query
-* <img src="src/assets/images/copy.svg"/> - duplicate a query
-* <img src="src/assets/images/file-export.svg"/> - export a query to json file
-* <img src="src/assets/images/delete.svg"/> - delete a query
-
-To edit the text of a query or its chart settings click on the respective row. You will be redirected to `Editor` where the chosen query will be opened in a tab.
-
-> **Note:** After opening a query there will be no chart for it even if you specified it and saved. That is so because there is no data to build the chart. Run the query and all saved chart settings will be applied.
-
-You can also delete or export to file a group of queries. Select queries with checkboxes and press `Delete`/`Export` button above the grid (fig. 7).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_group.png" width="600"/> 
-</p>
-
-
-<p align="center">
-  <sub>
-    Fig. 7: My queries: a group of queries is selected
-   </sub>
-</p>
-
-> **Note:** Some operations are not available for predefined queries (see below).
-
-## Import queries
-
-Click `Import` button on `My queries` page to import queries from JSON file generated by export.
-
-## Predefined queries
-
-If you run sqliteviz on your own server you can specify predefined queries. These queries will be in `My queries` list for all users working with sqliteviz on your server.
-
-To create a list of predefined queries choose queries in `My queries` list and export them to `queries.json`. Then place this file on the server in the same directory as `index.html`.
-
-A user can't edit, rename or delete a predefined query. The rest operations are available.
+## Wiki
+For user documentation, check out sqliteviz [Wiki][7].
 
 ## Motivation
 It's a kind of middleground between [Plotly Falcon][1] and [Redash][2].
@@ -163,8 +33,9 @@ It is built on top of [react-chart-editor][3], [sql.js][4] and [Vue-Codemirror][
 [3]: https://github.com/plotly/react-chart-editor
 [4]: https://github.com/sql-js/sql.js
 [5]: https://github.com/vuejs/vue
-[6]: https://lana-k.github.io/sqliteviz
-[7]: https://plotly.com/chart-studio-help/tutorials/#basic
+[6]: https://lana-k.github.io/sqliteviz/
+[7]: https://github.com/lana-k/sqliteviz/wiki
 [8]: https://github.com/surmon-china/vue-codemirror#readme
 [9]: https://www.papaparse.com/
-
+[10]: https://github.com/lana-k/sqliteviz/wiki/Predefined-queries
+[11]: https://github.com/plotly/plotly.js

karma.conf.js

@@ -76,9 +76,17 @@ module.exports = function (config) {
     // enable / disable watching file and executing tests whenever any file changes
     autoWatch: false,
 
+    customLaunchers: {
+      FirefoxHeadlessTouch: {
+        base: 'FirefoxHeadless',
+        prefs: {
+          'dom.w3c_touch_events.enabled': 1
+        }
+      }
+    },
     // start these browsers
     // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['ChromiumHeadless'],
+    browsers: ['ChromiumHeadless', 'FirefoxHeadlessTouch'],
 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits
@@ -86,10 +94,13 @@ module.exports = function (config) {
 
     // Concurrency level
     // how many browser should be started simultaneous
-    concurrency: Infinity,
+    concurrency: 2,
 
     client: {
-      captureConsole: true
+      captureConsole: true,
+      mocha: {
+        timeout: 7000
+      }
     },
     browserConsoleLogOptions: {
       terminal: true,
@@ -130,7 +141,7 @@ module.exports = function (config) {
             ]
           },
           {
-            test: /\.worker\.js$/,
+            test: /worker\.js$/,
             loader: 'worker-loader'
           },
           {

lib/sql-js/Dockerfile

@@ -0,0 +1,9 @@
+FROM emscripten/emsdk:2.0.24
+
+WORKDIR /tmp/build
+
+COPY configure.py .
+RUN python3.8 configure.py
+
+COPY build.py .
+RUN python3.8 build.py

lib/sql-js/README.md

@@ -0,0 +1,73 @@
+# SQLite WebAssembly build
+
+This directory contains Docker-based build script, `make.sh`, that builds
+a custom version of [sql.js][1]. It allows sqliteviz to have more recent
+version of SQLite build with a number of useful extensions.
+
+`Makefile` from [sql.js][1] is rewritten as more comprehensible `configure.py`
+ and `build.py` Python scripts that run in `emscripten/emsdk` Docker container.
+
+## Extension
+
+SQLite [amalgamation][2] extensions included:
+
+1. [FTS5][4] -- virtual table module that provides full-text search
+   functionality
+
+SQLite [miscellaneous extensions][3] included:
+
+1. `generate_series` table-valued [series function][6] ([series.c][7])
+2. `transitive_closure` virtual table for
+   [Querying Tree Structures in SQLite][11] ([closure.c][8])
+3. `uuid`, `uuid_str` and `uuid_blob` RFC-4122 UUID functions ([uuid.c][9])
+4. `regexp` (hence `REGEXP` operator) and `regexpi` functions ([regexp.c][10])
+
+SQLite 3rd party extensions included:
+
+1. [pivot_vtab][5] -- a pivot virtual table
+
+To ease the step to have working clone locally, the build is committed into
+the repository.
+
+## Build method
+
+Basically it's extended amalgamation and `SQLITE_EXTRA_INIT` concisely
+described in [this message from SQLite Forum][12]:
+
+> Simply append it to the end of the amalgamation file. The real problem is
+> how you get the init function called. The easiest way (to me at any rate) is
+> to append a function (after the extensions you want to add are all appended)
+> that adds the init function for each extension to the auto extension list
+> for new connections, and set the pre-processor symbol SQLITE_EXTRA_INIT to
+> the name of this function. [...]
+>
+> An example `SQLITE_EXTRA_INIT` function looks like this:
+>
+> ```
+> int core_init(const char* dummy)
+> {
+>    int nErr = 0;
+>
+>    nErr += sqlite3_auto_extension((void*)sqlite3_autobusy_init);
+>    nErr += sqlite3_auto_extension((void*)sqlite3_ipaddress_init);
+>
+>    return nErr ? SQLITE_ERROR : SQLITE_OK;
+> }
+> ```
+>
+> so you would then define `SQLITE_EXTRA_INIT=core_init` when compiling the
+> amalgamation code and the extensions would thereafter be automatically
+> initialized on each connection.
+
+[1]:  https://github.com/sql-js/sql.js
+[2]:  https://sqlite.org/amalgamation.html
+[3]:  https://sqlite.org/src/dir?ci=trunk&name=ext/misc
+[4]:  https://sqlite.org/fts5.html
+[5]:  https://github.com/jakethaw/pivot_vtab
+[6]:  https://sqlite.org/series.html
+[7]:  https://sqlite.org/src/file/ext/misc/series.c
+[8]:  https://sqlite.org/src/file/ext/misc/closure.c
+[9]:  https://sqlite.org/src/file/ext/misc/uuid.c
+[10]: https://sqlite.org/src/file/ext/misc/regexp.c
+[11]: https://charlesleifer.com/blog/querying-tree-structures-in-sqlite-using-python-and-the-transitive-closure-extension/
+[12]: https://sqlite.org/forum/forumpost/6ad7d4f4bebe5e06?raw

lib/sql-js/build.py

@@ -0,0 +1,83 @@
+import logging
+import subprocess
+from pathlib import Path
+
+
+cflags = (
+    '-O2',
+    '-DSQLITE_OMIT_LOAD_EXTENSION',
+    '-DSQLITE_DISABLE_LFS',
+    '-DSQLITE_ENABLE_FTS3',
+    '-DSQLITE_ENABLE_FTS3_PARENTHESIS',
+    '-DSQLITE_ENABLE_FTS5',
+    '-DSQLITE_ENABLE_JSON1',
+    '-DSQLITE_THREADSAFE=0',
+    '-DSQLITE_ENABLE_NORMALIZE',
+    '-DSQLITE_EXTRA_INIT=extra_init',
+    '-DSQLITE_DEFAULT_MEMSTATUS=0',
+    '-DSQLITE_USE_ALLOCA',
+)
+emflags = (
+    # Base
+    '--memory-init-file', '0',
+    '-s', 'RESERVED_FUNCTION_POINTERS=64',
+    '-s', 'ALLOW_TABLE_GROWTH=1',
+    '-s', 'SINGLE_FILE=0',
+    # WASM
+    '-s', 'WASM=1',
+    '-s', 'ALLOW_MEMORY_GROWTH=1',
+    # Optimisation
+    '-s', 'INLINING_LIMIT=50',
+    '-O3',
+    '-flto',
+    '--closure', '1',
+    # sql.js
+    '-s', 'EXPORTED_FUNCTIONS=@src/sqljs/exported_functions.json',
+    '-s', 'EXPORTED_RUNTIME_METHODS=@src/sqljs/exported_runtime_methods.json',
+    '--pre-js', 'src/sqljs/api.js',
+)
+
+
+def build(src: Path, dst: Path):
+    out = Path('out')
+    out.mkdir()
+
+    logging.info('Building LLVM bitcode for sqlite3.c')
+    subprocess.check_call([
+        'emcc',
+        *cflags,
+        '-c', src / 'sqlite3.c',
+        '-o', out / 'sqlite3.bc',
+    ])
+    logging.info('Building LLVM bitcode for extension-functions.c')
+    subprocess.check_call([
+        'emcc',
+        *cflags,
+        '-c', src / 'extension-functions.c',
+        '-o', out / 'extension-functions.bc',
+    ])
+
+    logging.info('Building WASM from bitcode')
+    subprocess.check_call([
+        'emcc',
+        *emflags,
+        out / 'sqlite3.bc',
+        out / 'extension-functions.bc',
+        '-o', out / 'sql-wasm.js',
+    ])
+
+    logging.info('Post-processing build and copying to dist')
+    (out / 'sql-wasm.wasm').rename(dst / 'sql-wasm.wasm')
+    with (dst / 'sql-wasm.js').open('w') as f:
+        f.write((src / 'sqljs' / 'shell-pre.js').read_text())
+        f.write((out / 'sql-wasm.js').read_text())
+        f.write((src / 'sqljs' / 'shell-post.js').read_text())
+
+
+if __name__ == '__main__':
+    logging.basicConfig(level='INFO', format='%(asctime)s %(levelname)s %(name)s %(message)s')
+
+    src = Path('src')
+    dst = Path('dist')
+    dst.mkdir()
+    build(src, dst)

lib/sql-js/configure.py

@@ -0,0 +1,105 @@
+import logging
+import shutil
+import subprocess
+import sys
+import zipfile
+from io import BytesIO
+from pathlib import Path
+from urllib import request
+
+
+amalgamation_url = 'https://sqlite.org/2021/sqlite-amalgamation-3360000.zip'
+
+# Extension-functions
+# ===================
+# It breaks amalgamation if appended as other extension because it redefines
+# several functions, so build it separately. Note that sql.js registers these
+# extension functions by calling ``registerExtensionFunctions`` itself.
+contrib_functions_url = 'https://sqlite.org/contrib/download/extension-functions.c?get=25'
+
+extension_urls = (
+    # Miscellaneous extensions
+    # ========================
+    ('https://sqlite.org/src/raw/c6bd5d24?at=series.c', 'sqlite3_series_init'),
+    ('https://sqlite.org/src/raw/dbfd8543?at=closure.c', 'sqlite3_closure_init'),
+    ('https://sqlite.org/src/raw/5bb2264c?at=uuid.c', 'sqlite3_uuid_init'),
+    ('https://sqlite.org/src/raw/5853b0e5?at=regexp.c', 'sqlite3_regexp_init'),
+    # Third-party extension
+    # =====================
+    ('https://github.com/jakethaw/pivot_vtab/raw/08ab0797/pivot_vtab.c', 'sqlite3_pivotvtab_init'),
+)
+
+sqljs_url = 'https://github.com/sql-js/sql.js/archive/refs/tags/v1.5.0.zip'
+
+
+def _generate_extra_init_c_function(init_function_names):
+    auto_ext_calls = '\n'.join([
+        'nErr += sqlite3_auto_extension((void*){});'.format(init_fn)
+        for init_fn in init_function_names
+    ])
+    return '''
+        int extra_init(const char* dummy)
+        {
+            int nErr = 0;
+            %s
+            return nErr ? SQLITE_ERROR : SQLITE_OK;
+        }
+    ''' % auto_ext_calls
+
+
+def _get_amalgamation(tgt: Path):
+    logging.info('Downloading and extracting SQLite amalgamation %s', amalgamation_url)
+    archive = zipfile.ZipFile(BytesIO(request.urlopen(amalgamation_url).read()))
+    archive_root_dir = zipfile.Path(archive, archive.namelist()[0])
+    for zpath in archive_root_dir.iterdir():
+        with zpath.open() as fr, (tgt / zpath.name).open('wb') as fw:
+            shutil.copyfileobj(fr, fw)
+
+
+def _get_contrib_functions(tgt: Path):
+    request.urlretrieve(contrib_functions_url, tgt / 'extension-functions.c')
+
+
+def _get_extensions(tgt: Path):
+    init_functions = []
+    sqlite3_c = tgt / 'sqlite3.c'
+    with sqlite3_c.open('ab') as f:
+        for url, init_fn in extension_urls:
+            logging.info('Downloading and appending to amalgamation %s', url)
+            with request.urlopen(url) as resp:
+                shutil.copyfileobj(resp, f)
+            init_functions.append(init_fn)
+
+        logging.info('Appending SQLITE_EXTRA_INIT to amalgamation')
+        f.write(_generate_extra_init_c_function(init_functions).encode())
+
+
+def _get_sqljs(tgt: Path):
+    logging.info('Downloading and extracting sql.js %s', sqljs_url)
+    archive = zipfile.ZipFile(BytesIO(request.urlopen(sqljs_url).read()))
+    archive_root_dir = zipfile.Path(archive, archive.namelist()[0])
+    (tgt / 'sqljs').mkdir()
+    for zpath in (archive_root_dir / 'src').iterdir():
+        with zpath.open() as fr, (tgt / 'sqljs' / zpath.name).open('wb') as fw:
+            shutil.copyfileobj(fr, fw)
+
+
+def configure(tgt: Path):
+    _get_amalgamation(tgt)
+    _get_contrib_functions(tgt)
+    _get_extensions(tgt)
+    _get_sqljs(tgt)
+
+    subprocess.check_call(['emcc', '--version'])
+
+
+if __name__ == '__main__':
+    if sys.version_info < (3, 8):
+        print('Python 3.8 or higher is expected', file=sys.stderr)
+        sys.exit(1)
+
+    logging.basicConfig(level='INFO', format='%(asctime)s %(levelname)s %(name)s %(message)s')
+
+    src = Path('src')
+    src.mkdir()
+    configure(src)

lib/sql-js/dist/sql-wasm.js

@@ -0,0 +1,201 @@
+
+// We are modularizing this manually because the current modularize setting in Emscripten has some issues:
+// https://github.com/kripken/emscripten/issues/5820
+// In addition, When you use emcc's modularization, it still expects to export a global object called `Module`,
+// which is able to be used/called before the WASM is loaded.
+// The modularization below exports a promise that loads and resolves to the actual sql.js module.
+// That way, this module can't be used before the WASM is finished loading.
+
+// We are going to define a function that a user will call to start loading initializing our Sql.js library
+// However, that function might be called multiple times, and on subsequent calls, we don't actually want it to instantiate a new instance of the Module
+// Instead, we want to return the previously loaded module
+
+// TODO: Make this not declare a global if used in the browser
+var initSqlJsPromise = undefined;
+
+var initSqlJs = function (moduleConfig) {
+
+    if (initSqlJsPromise){
+      return initSqlJsPromise;
+    }
+    // If we're here, we've never called this function before
+    initSqlJsPromise = new Promise(function (resolveModule, reject) {
+
+        // We are modularizing this manually because the current modularize setting in Emscripten has some issues:
+        // https://github.com/kripken/emscripten/issues/5820
+
+        // The way to affect the loading of emcc compiled modules is to create a variable called `Module` and add
+        // properties to it, like `preRun`, `postRun`, etc
+        // We are using that to get notified when the WASM has finished loading.
+        // Only then will we return our promise
+
+        // If they passed in a moduleConfig object, use that
+        // Otherwise, initialize Module to the empty object
+        var Module = typeof moduleConfig !== 'undefined' ? moduleConfig : {};
+
+        // EMCC only allows for a single onAbort function (not an array of functions)
+        // So if the user defined their own onAbort function, we remember it and call it
+        var originalOnAbortFunction = Module['onAbort'];
+        Module['onAbort'] = function (errorThatCausedAbort) {
+            reject(new Error(errorThatCausedAbort));
+            if (originalOnAbortFunction){
+              originalOnAbortFunction(errorThatCausedAbort);
+            }
+        };
+
+        Module['postRun'] = Module['postRun'] || [];
+        Module['postRun'].push(function () {
+            // When Emscripted calls postRun, this promise resolves with the built Module
+            resolveModule(Module);
+        });
+
+        // There is a section of code in the emcc-generated code below that looks like this:
+        // (Note that this is lowercase `module`)
+        // if (typeof module !== 'undefined') {
+        //     module['exports'] = Module;
+        // }
+        // When that runs, it's going to overwrite our own modularization export efforts in shell-post.js!
+        // The only way to tell emcc not to emit it is to pass the MODULARIZE=1 or MODULARIZE_INSTANCE=1 flags,
+        // but that carries with it additional unnecessary baggage/bugs we don't want either.
+        // So, we have three options:
+        // 1) We undefine `module`
+        // 2) We remember what `module['exports']` was at the beginning of this function and we restore it later
+        // 3) We write a script to remove those lines of code as part of the Make process.
+        //
+        // Since those are the only lines of code that care about module, we will undefine it. It's the most straightforward
+        // of the options, and has the side effect of reducing emcc's efforts to modify the module if its output were to change in the future.
+        // That's a nice side effect since we're handling the modularization efforts ourselves
+        module = undefined;
+
+        // The emcc-generated code and shell-post.js code goes below,
+        // meaning that all of it runs inside of this promise. If anything throws an exception, our promise will abort
+
+var e;e||(e=typeof Module !== 'undefined' ? Module : {});null;
+e.onRuntimeInitialized=function(){function a(h,l){this.Ra=h;this.db=l;this.Qa=1;this.lb=[]}function b(h,l){this.db=l;l=ba(h)+1;this.eb=ca(l);if(null===this.eb)throw Error("Unable to allocate memory for the SQL string");k(h,n,this.eb,l);this.jb=this.eb;this.$a=this.pb=null}function c(h){this.filename="dbfile_"+(4294967295*Math.random()>>>0);if(null!=h){var l=this.filename,p=l?r("//"+l):"/";l=da(!0,!0);p=ea(p,(void 0!==l?l:438)&4095|32768,0);if(h){if("string"===typeof h){for(var q=Array(h.length),B=
+0,ha=h.length;B<ha;++B)q[B]=h.charCodeAt(B);h=q}fa(p,l|146);q=v(p,577);ka(q,h,0,h.length,0,void 0);la(q);fa(p,l)}}this.handleError(g(this.filename,d));this.db=x(d,"i32");ic(this.db);this.fb={};this.Xa={}}var d=y(4),f=e.cwrap,g=f("sqlite3_open","number",["string","number"]),m=f("sqlite3_close_v2","number",["number"]),t=f("sqlite3_exec","number",["number","string","number","number","number"]),w=f("sqlite3_changes","number",["number"]),u=f("sqlite3_prepare_v2","number",["number","string","number","number",
+"number"]),C=f("sqlite3_sql","string",["number"]),H=f("sqlite3_normalized_sql","string",["number"]),aa=f("sqlite3_prepare_v2","number",["number","number","number","number","number"]),jc=f("sqlite3_bind_text","number",["number","number","number","number","number"]),rb=f("sqlite3_bind_blob","number",["number","number","number","number","number"]),kc=f("sqlite3_bind_double","number",["number","number","number"]),lc=f("sqlite3_bind_int","number",["number","number","number"]),mc=f("sqlite3_bind_parameter_index",
+"number",["number","string"]),nc=f("sqlite3_step","number",["number"]),oc=f("sqlite3_errmsg","string",["number"]),pc=f("sqlite3_column_count","number",["number"]),qc=f("sqlite3_data_count","number",["number"]),rc=f("sqlite3_column_double","number",["number","number"]),sc=f("sqlite3_column_text","string",["number","number"]),tc=f("sqlite3_column_blob","number",["number","number"]),uc=f("sqlite3_column_bytes","number",["number","number"]),vc=f("sqlite3_column_type","number",["number","number"]),wc=
+f("sqlite3_column_name","string",["number","number"]),xc=f("sqlite3_reset","number",["number"]),yc=f("sqlite3_clear_bindings","number",["number"]),zc=f("sqlite3_finalize","number",["number"]),Ac=f("sqlite3_create_function_v2","number","number string number number number number number number number".split(" ")),Bc=f("sqlite3_value_type","number",["number"]),Cc=f("sqlite3_value_bytes","number",["number"]),Dc=f("sqlite3_value_text","string",["number"]),Ec=f("sqlite3_value_blob","number",["number"]),
+Fc=f("sqlite3_value_double","number",["number"]),Gc=f("sqlite3_result_double","",["number","number"]),sb=f("sqlite3_result_null","",["number"]),Hc=f("sqlite3_result_text","",["number","string","number","number"]),Ic=f("sqlite3_result_blob","",["number","number","number","number"]),Jc=f("sqlite3_result_int","",["number","number"]),tb=f("sqlite3_result_error","",["number","string","number"]),ic=f("RegisterExtensionFunctions","number",["number"]);a.prototype.bind=function(h){if(!this.Ra)throw"Statement closed";
+this.reset();return Array.isArray(h)?this.Bb(h):null!=h&&"object"===typeof h?this.Cb(h):!0};a.prototype.step=function(){if(!this.Ra)throw"Statement closed";this.Qa=1;var h=nc(this.Ra);switch(h){case 100:return!0;case 101:return!1;default:throw this.db.handleError(h);}};a.prototype.Hb=function(h){null==h&&(h=this.Qa,this.Qa+=1);return rc(this.Ra,h)};a.prototype.Ib=function(h){null==h&&(h=this.Qa,this.Qa+=1);return sc(this.Ra,h)};a.prototype.getBlob=function(h){null==h&&(h=this.Qa,this.Qa+=1);var l=
+uc(this.Ra,h);h=tc(this.Ra,h);for(var p=new Uint8Array(l),q=0;q<l;q+=1)p[q]=z[h+q];return p};a.prototype.get=function(h){null!=h&&this.bind(h)&&this.step();h=[];for(var l=qc(this.Ra),p=0;p<l;p+=1)switch(vc(this.Ra,p)){case 1:case 2:h.push(this.Hb(p));break;case 3:h.push(this.Ib(p));break;case 4:h.push(this.getBlob(p));break;default:h.push(null)}return h};a.prototype.getColumnNames=function(){for(var h=[],l=pc(this.Ra),p=0;p<l;p+=1)h.push(wc(this.Ra,p));return h};a.prototype.getAsObject=function(h){h=
+this.get(h);for(var l=this.getColumnNames(),p={},q=0;q<l.length;q+=1)p[l[q]]=h[q];return p};a.prototype.getSQL=function(){return C(this.Ra)};a.prototype.getNormalizedSQL=function(){return H(this.Ra)};a.prototype.run=function(h){null!=h&&this.bind(h);this.step();return this.reset()};a.prototype.Fb=function(h,l){null==l&&(l=this.Qa,this.Qa+=1);h=ma(h);var p=na(h);this.lb.push(p);this.db.handleError(jc(this.Ra,l,p,h.length-1,0))};a.prototype.Ab=function(h,l){null==l&&(l=this.Qa,this.Qa+=1);var p=na(h);
+this.lb.push(p);this.db.handleError(rb(this.Ra,l,p,h.length,0))};a.prototype.Eb=function(h,l){null==l&&(l=this.Qa,this.Qa+=1);this.db.handleError((h===(h|0)?lc:kc)(this.Ra,l,h))};a.prototype.Db=function(h){null==h&&(h=this.Qa,this.Qa+=1);rb(this.Ra,h,0,0,0)};a.prototype.tb=function(h,l){null==l&&(l=this.Qa,this.Qa+=1);switch(typeof h){case "string":this.Fb(h,l);return;case "number":case "boolean":this.Eb(h+0,l);return;case "object":if(null===h){this.Db(l);return}if(null!=h.length){this.Ab(h,l);return}}throw"Wrong API use : tried to bind a value of an unknown type ("+
+h+").";};a.prototype.Cb=function(h){var l=this;Object.keys(h).forEach(function(p){var q=mc(l.Ra,p);0!==q&&l.tb(h[p],q)});return!0};a.prototype.Bb=function(h){for(var l=0;l<h.length;l+=1)this.tb(h[l],l+1);return!0};a.prototype.reset=function(){return 0===yc(this.Ra)&&0===xc(this.Ra)};a.prototype.freemem=function(){for(var h;void 0!==(h=this.lb.pop());)oa(h)};a.prototype.free=function(){var h=0===zc(this.Ra);delete this.db.fb[this.Ra];this.Ra=0;return h};b.prototype.next=function(){if(null===this.eb)return{done:!0};
+null!==this.$a&&(this.$a.free(),this.$a=null);if(!this.db.db)throw this.nb(),Error("Database closed");var h=pa(),l=y(4);qa(d);qa(l);try{this.db.handleError(aa(this.db.db,this.jb,-1,d,l));this.jb=x(l,"i32");var p=x(d,"i32");if(0===p)return this.nb(),{done:!0};this.$a=new a(p,this.db);this.db.fb[p]=this.$a;return{value:this.$a,done:!1}}catch(q){throw this.pb=A(this.jb),this.nb(),q;}finally{ra(h)}};b.prototype.nb=function(){oa(this.eb);this.eb=null};b.prototype.getRemainingSQL=function(){return null!==
+this.pb?this.pb:A(this.jb)};"function"===typeof Symbol&&"symbol"===typeof Symbol.iterator&&(b.prototype[Symbol.iterator]=function(){return this});c.prototype.run=function(h,l){if(!this.db)throw"Database closed";if(l){h=this.prepare(h,l);try{h.step()}finally{h.free()}}else this.handleError(t(this.db,h,0,0,d));return this};c.prototype.exec=function(h,l){if(!this.db)throw"Database closed";var p=pa(),q=null;try{var B=ba(h)+1,ha=y(B);k(h,z,ha,B);var D=ha;var ia=y(4);for(h=[];0!==x(D,"i8");){qa(d);qa(ia);
+this.handleError(aa(this.db,D,-1,d,ia));var ja=x(d,"i32");D=x(ia,"i32");if(0!==ja){B=null;q=new a(ja,this);for(null!=l&&q.bind(l);q.step();)null===B&&(B={columns:q.getColumnNames(),values:[]},h.push(B)),B.values.push(q.get());q.free()}}return h}catch(E){throw q&&q.free(),E;}finally{ra(p)}};c.prototype.each=function(h,l,p,q){"function"===typeof l&&(q=p,p=l,l=void 0);h=this.prepare(h,l);try{for(;h.step();)p(h.getAsObject())}finally{h.free()}if("function"===typeof q)return q()};c.prototype.prepare=function(h,
+l){qa(d);this.handleError(u(this.db,h,-1,d,0));h=x(d,"i32");if(0===h)throw"Nothing to prepare";var p=new a(h,this);null!=l&&p.bind(l);return this.fb[h]=p};c.prototype.iterateStatements=function(h){return new b(h,this)};c.prototype["export"]=function(){Object.values(this.fb).forEach(function(l){l.free()});Object.values(this.Xa).forEach(sa);this.Xa={};this.handleError(m(this.db));var h=ta(this.filename);this.handleError(g(this.filename,d));this.db=x(d,"i32");return h};c.prototype.close=function(){null!==
+this.db&&(Object.values(this.fb).forEach(function(h){h.free()}),Object.values(this.Xa).forEach(sa),this.Xa={},this.handleError(m(this.db)),ua("/"+this.filename),this.db=null)};c.prototype.handleError=function(h){if(0===h)return null;h=oc(this.db);throw Error(h);};c.prototype.getRowsModified=function(){return w(this.db)};c.prototype.create_function=function(h,l){Object.prototype.hasOwnProperty.call(this.Xa,h)&&(sa(this.Xa[h]),delete this.Xa[h]);var p=va(function(q,B,ha){for(var D,ia=[],ja=0;ja<B;ja+=
+1){var E=x(ha+4*ja,"i32"),T=Bc(E);if(1===T||2===T)E=Fc(E);else if(3===T)E=Dc(E);else if(4===T){T=E;E=Cc(T);T=Ec(T);for(var wb=new Uint8Array(E),Ba=0;Ba<E;Ba+=1)wb[Ba]=z[T+Ba];E=wb}else E=null;ia.push(E)}try{D=l.apply(null,ia)}catch(Mc){tb(q,Mc,-1);return}switch(typeof D){case "boolean":Jc(q,D?1:0);break;case "number":Gc(q,D);break;case "string":Hc(q,D,-1,-1);break;case "object":null===D?sb(q):null!=D.length?(B=na(D),Ic(q,B,D.length,-1),oa(B)):tb(q,"Wrong API use : tried to return a value of an unknown type ("+
+D+").",-1);break;default:sb(q)}});this.Xa[h]=p;this.handleError(Ac(this.db,h,l.length,1,0,p,0,0,0));return this};e.Database=c};var wa={},F;for(F in e)e.hasOwnProperty(F)&&(wa[F]=e[F]);var xa="./this.program",ya=!1,za=!1,Aa=!1,Ca=!1;ya="object"===typeof window;za="function"===typeof importScripts;Aa="object"===typeof process&&"object"===typeof process.versions&&"string"===typeof process.versions.node;Ca=!ya&&!Aa&&!za;var G="",Da,Ea,Fa,Ga,Ha;
+if(Aa)G=za?require("path").dirname(G)+"/":__dirname+"/",Da=function(a,b){Ga||(Ga=require("fs"));Ha||(Ha=require("path"));a=Ha.normalize(a);return Ga.readFileSync(a,b?null:"utf8")},Fa=function(a){a=Da(a,!0);a.buffer||(a=new Uint8Array(a));assert(a.buffer);return a},1<process.argv.length&&(xa=process.argv[1].replace(/\\/g,"/")),process.argv.slice(2),"undefined"!==typeof module&&(module.exports=e),process.on("uncaughtException",function(a){throw a;}),process.on("unhandledRejection",I),e.inspect=function(){return"[Emscripten Module object]"};
+else if(Ca)"undefined"!=typeof read&&(Da=function(a){return read(a)}),Fa=function(a){if("function"===typeof readbuffer)return new Uint8Array(readbuffer(a));a=read(a,"binary");assert("object"===typeof a);return a},"undefined"!==typeof print&&("undefined"===typeof console&&(console={}),console.log=print,console.warn=console.error="undefined"!==typeof printErr?printErr:print);else if(ya||za)za?G=self.location.href:"undefined"!==typeof document&&document.currentScript&&(G=document.currentScript.src),
+G=0!==G.indexOf("blob:")?G.substr(0,G.lastIndexOf("/")+1):"",Da=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.send(null);return b.responseText},za&&(Fa=function(a){var b=new XMLHttpRequest;b.open("GET",a,!1);b.responseType="arraybuffer";b.send(null);return new Uint8Array(b.response)}),Ea=function(a,b,c){var d=new XMLHttpRequest;d.open("GET",a,!0);d.responseType="arraybuffer";d.onload=function(){200==d.status||0==d.status&&d.response?b(d.response):c()};d.onerror=c;d.send(null)};
+var Ia=e.print||console.log.bind(console),J=e.printErr||console.warn.bind(console);for(F in wa)wa.hasOwnProperty(F)&&(e[F]=wa[F]);wa=null;e.thisProgram&&(xa=e.thisProgram);var Ja=[],Ka;function sa(a){Ka.delete(K.get(a));Ja.push(a)}
+function va(a){if(!Ka){Ka=new WeakMap;for(var b=0;b<K.length;b++){var c=K.get(b);c&&Ka.set(c,b)}}if(Ka.has(a))a=Ka.get(a);else{if(Ja.length)b=Ja.pop();else{try{K.grow(1)}catch(g){if(!(g instanceof RangeError))throw g;throw"Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.";}b=K.length-1}try{K.set(b,a)}catch(g){if(!(g instanceof TypeError))throw g;if("function"===typeof WebAssembly.Function){var d={i:"i32",j:"i64",f:"f32",d:"f64"},f={parameters:[],results:[]};for(c=1;4>c;++c)f.parameters.push(d["viii"[c]]);
+c=new WebAssembly.Function(f,a)}else{d=[1,0,1,96];f={i:127,j:126,f:125,d:124};d.push(3);for(c=0;3>c;++c)d.push(f["iii"[c]]);d.push(0);d[1]=d.length-2;c=new Uint8Array([0,97,115,109,1,0,0,0].concat(d,[2,7,1,1,101,1,102,0,0,7,5,1,1,102,0,0]));c=new WebAssembly.Module(c);c=(new WebAssembly.Instance(c,{e:{f:a}})).exports.f}K.set(b,c)}Ka.set(a,b);a=b}return a}var La;e.wasmBinary&&(La=e.wasmBinary);var noExitRuntime=e.noExitRuntime||!0;"object"!==typeof WebAssembly&&I("no native wasm support detected");
+function qa(a){var b="i32";"*"===b.charAt(b.length-1)&&(b="i32");switch(b){case "i1":z[a>>0]=0;break;case "i8":z[a>>0]=0;break;case "i16":Ma[a>>1]=0;break;case "i32":L[a>>2]=0;break;case "i64":M=[0,(N=0,1<=+Math.abs(N)?0<N?(Math.min(+Math.floor(N/4294967296),4294967295)|0)>>>0:~~+Math.ceil((N-+(~~N>>>0))/4294967296)>>>0:0)];L[a>>2]=M[0];L[a+4>>2]=M[1];break;case "float":Na[a>>2]=0;break;case "double":Oa[a>>3]=0;break;default:I("invalid type for setValue: "+b)}}
+function x(a,b){b=b||"i8";"*"===b.charAt(b.length-1)&&(b="i32");switch(b){case "i1":return z[a>>0];case "i8":return z[a>>0];case "i16":return Ma[a>>1];case "i32":return L[a>>2];case "i64":return L[a>>2];case "float":return Na[a>>2];case "double":return Oa[a>>3];default:I("invalid type for getValue: "+b)}return null}var Pa,Qa=!1;function assert(a,b){a||I("Assertion failed: "+b)}function Ra(a){var b=e["_"+a];assert(b,"Cannot call unknown function "+a+", make sure it is exported");return b}
+function Sa(a,b,c,d){var f={string:function(u){var C=0;if(null!==u&&void 0!==u&&0!==u){var H=(u.length<<2)+1;C=y(H);k(u,n,C,H)}return C},array:function(u){var C=y(u.length);z.set(u,C);return C}},g=Ra(a),m=[];a=0;if(d)for(var t=0;t<d.length;t++){var w=f[c[t]];w?(0===a&&(a=pa()),m[t]=w(d[t])):m[t]=d[t]}c=g.apply(null,m);c=function(u){return"string"===b?A(u):"boolean"===b?!!u:u}(c);0!==a&&ra(a);return c}var Ta=0,Ua=1;
+function na(a){var b=Ta==Ua?y(a.length):ca(a.length);a.subarray||a.slice?n.set(a,b):n.set(new Uint8Array(a),b);return b}var Va="undefined"!==typeof TextDecoder?new TextDecoder("utf8"):void 0;
+function Wa(a,b,c){var d=b+c;for(c=b;a[c]&&!(c>=d);)++c;if(16<c-b&&a.subarray&&Va)return Va.decode(a.subarray(b,c));for(d="";b<c;){var f=a[b++];if(f&128){var g=a[b++]&63;if(192==(f&224))d+=String.fromCharCode((f&31)<<6|g);else{var m=a[b++]&63;f=224==(f&240)?(f&15)<<12|g<<6|m:(f&7)<<18|g<<12|m<<6|a[b++]&63;65536>f?d+=String.fromCharCode(f):(f-=65536,d+=String.fromCharCode(55296|f>>10,56320|f&1023))}}else d+=String.fromCharCode(f)}return d}function A(a,b){return a?Wa(n,a,b):""}
+function k(a,b,c,d){if(!(0<d))return 0;var f=c;d=c+d-1;for(var g=0;g<a.length;++g){var m=a.charCodeAt(g);if(55296<=m&&57343>=m){var t=a.charCodeAt(++g);m=65536+((m&1023)<<10)|t&1023}if(127>=m){if(c>=d)break;b[c++]=m}else{if(2047>=m){if(c+1>=d)break;b[c++]=192|m>>6}else{if(65535>=m){if(c+2>=d)break;b[c++]=224|m>>12}else{if(c+3>=d)break;b[c++]=240|m>>18;b[c++]=128|m>>12&63}b[c++]=128|m>>6&63}b[c++]=128|m&63}}b[c]=0;return c-f}
+function ba(a){for(var b=0,c=0;c<a.length;++c){var d=a.charCodeAt(c);55296<=d&&57343>=d&&(d=65536+((d&1023)<<10)|a.charCodeAt(++c)&1023);127>=d?++b:b=2047>=d?b+2:65535>=d?b+3:b+4}return b}function Xa(a){var b=ba(a)+1,c=ca(b);c&&k(a,z,c,b);return c}var Ya,z,n,Ma,L,Na,Oa;
+function Za(){var a=Pa.buffer;Ya=a;e.HEAP8=z=new Int8Array(a);e.HEAP16=Ma=new Int16Array(a);e.HEAP32=L=new Int32Array(a);e.HEAPU8=n=new Uint8Array(a);e.HEAPU16=new Uint16Array(a);e.HEAPU32=new Uint32Array(a);e.HEAPF32=Na=new Float32Array(a);e.HEAPF64=Oa=new Float64Array(a)}var K,$a=[],ab=[],bb=[];function cb(){var a=e.preRun.shift();$a.unshift(a)}var db=0,eb=null,fb=null;e.preloadedImages={};e.preloadedAudios={};
+function I(a){if(e.onAbort)e.onAbort(a);J(a);Qa=!0;throw new WebAssembly.RuntimeError("abort("+a+"). Build with -s ASSERTIONS=1 for more info.");}function gb(){return O.startsWith("data:application/octet-stream;base64,")}var O;O="sql-wasm.wasm";if(!gb()){var hb=O;O=e.locateFile?e.locateFile(hb,G):G+hb}function ib(){var a=O;try{if(a==O&&La)return new Uint8Array(La);if(Fa)return Fa(a);throw"both async and sync fetching of the wasm failed";}catch(b){I(b)}}
+function jb(){if(!La&&(ya||za)){if("function"===typeof fetch&&!O.startsWith("file://"))return fetch(O,{credentials:"same-origin"}).then(function(a){if(!a.ok)throw"failed to load wasm binary file at '"+O+"'";return a.arrayBuffer()}).catch(function(){return ib()});if(Ea)return new Promise(function(a,b){Ea(O,function(c){a(new Uint8Array(c))},b)})}return Promise.resolve().then(function(){return ib()})}var N,M;
+function kb(a){for(;0<a.length;){var b=a.shift();if("function"==typeof b)b(e);else{var c=b.Rb;"number"===typeof c?void 0===b.mb?K.get(c)():K.get(c)(b.mb):c(void 0===b.mb?null:b.mb)}}}function lb(a){return a.replace(/\b_Z[\w\d_]+/g,function(b){return b===b?b:b+" ["+b+"]"})}
+function mb(){function a(m){return(m=m.toTimeString().match(/\(([A-Za-z ]+)\)$/))?m[1]:"GMT"}if(!nb){nb=!0;var b=(new Date).getFullYear(),c=new Date(b,0,1),d=new Date(b,6,1);b=c.getTimezoneOffset();var f=d.getTimezoneOffset(),g=Math.max(b,f);L[ob()>>2]=60*g;L[pb()>>2]=Number(b!=f);c=a(c);d=a(d);c=Xa(c);d=Xa(d);f<b?(L[qb()>>2]=c,L[qb()+4>>2]=d):(L[qb()>>2]=d,L[qb()+4>>2]=c)}}var nb;
+function ub(a,b){for(var c=0,d=a.length-1;0<=d;d--){var f=a[d];"."===f?a.splice(d,1):".."===f?(a.splice(d,1),c++):c&&(a.splice(d,1),c--)}if(b)for(;c;c--)a.unshift("..");return a}function r(a){var b="/"===a.charAt(0),c="/"===a.substr(-1);(a=ub(a.split("/").filter(function(d){return!!d}),!b).join("/"))||b||(a=".");a&&c&&(a+="/");return(b?"/":"")+a}
+function vb(a){var b=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/.exec(a).slice(1);a=b[0];b=b[1];if(!a&&!b)return".";b&&(b=b.substr(0,b.length-1));return a+b}function xb(a){if("/"===a)return"/";a=r(a);a=a.replace(/\/$/,"");var b=a.lastIndexOf("/");return-1===b?a:a.substr(b+1)}
+function yb(){if("object"===typeof crypto&&"function"===typeof crypto.getRandomValues){var a=new Uint8Array(1);return function(){crypto.getRandomValues(a);return a[0]}}if(Aa)try{var b=require("crypto");return function(){return b.randomBytes(1)[0]}}catch(c){}return function(){I("randomDevice")}}
+function zb(){for(var a="",b=!1,c=arguments.length-1;-1<=c&&!b;c--){b=0<=c?arguments[c]:"/";if("string"!==typeof b)throw new TypeError("Arguments to path.resolve must be strings");if(!b)return"";a=b+"/"+a;b="/"===b.charAt(0)}a=ub(a.split("/").filter(function(d){return!!d}),!b).join("/");return(b?"/":"")+a||"."}var Ab=[];function Bb(a,b){Ab[a]={input:[],output:[],cb:b};Cb(a,Db)}
+var Db={open:function(a){var b=Ab[a.node.rdev];if(!b)throw new P(43);a.tty=b;a.seekable=!1},close:function(a){a.tty.cb.flush(a.tty)},flush:function(a){a.tty.cb.flush(a.tty)},read:function(a,b,c,d){if(!a.tty||!a.tty.cb.xb)throw new P(60);for(var f=0,g=0;g<d;g++){try{var m=a.tty.cb.xb(a.tty)}catch(t){throw new P(29);}if(void 0===m&&0===f)throw new P(6);if(null===m||void 0===m)break;f++;b[c+g]=m}f&&(a.node.timestamp=Date.now());return f},write:function(a,b,c,d){if(!a.tty||!a.tty.cb.qb)throw new P(60);
+try{for(var f=0;f<d;f++)a.tty.cb.qb(a.tty,b[c+f])}catch(g){throw new P(29);}d&&(a.node.timestamp=Date.now());return f}},Eb={xb:function(a){if(!a.input.length){var b=null;if(Aa){var c=Buffer.zb?Buffer.zb(256):new Buffer(256),d=0;try{d=Ga.readSync(process.stdin.fd,c,0,256,null)}catch(f){if(f.toString().includes("EOF"))d=0;else throw f;}0<d?b=c.slice(0,d).toString("utf-8"):b=null}else"undefined"!=typeof window&&"function"==typeof window.prompt?(b=window.prompt("Input: "),null!==b&&(b+="\n")):"function"==
+typeof readline&&(b=readline(),null!==b&&(b+="\n"));if(!b)return null;a.input=ma(b,!0)}return a.input.shift()},qb:function(a,b){null===b||10===b?(Ia(Wa(a.output,0)),a.output=[]):0!=b&&a.output.push(b)},flush:function(a){a.output&&0<a.output.length&&(Ia(Wa(a.output,0)),a.output=[])}},Fb={qb:function(a,b){null===b||10===b?(J(Wa(a.output,0)),a.output=[]):0!=b&&a.output.push(b)},flush:function(a){a.output&&0<a.output.length&&(J(Wa(a.output,0)),a.output=[])}},Q={Va:null,Wa:function(){return Q.createNode(null,
+"/",16895,0)},createNode:function(a,b,c,d){if(24576===(c&61440)||4096===(c&61440))throw new P(63);Q.Va||(Q.Va={dir:{node:{Ua:Q.Ma.Ua,Ta:Q.Ma.Ta,lookup:Q.Ma.lookup,gb:Q.Ma.gb,rename:Q.Ma.rename,unlink:Q.Ma.unlink,rmdir:Q.Ma.rmdir,readdir:Q.Ma.readdir,symlink:Q.Ma.symlink},stream:{Za:Q.Na.Za}},file:{node:{Ua:Q.Ma.Ua,Ta:Q.Ma.Ta},stream:{Za:Q.Na.Za,read:Q.Na.read,write:Q.Na.write,sb:Q.Na.sb,hb:Q.Na.hb,ib:Q.Na.ib}},link:{node:{Ua:Q.Ma.Ua,Ta:Q.Ma.Ta,readlink:Q.Ma.readlink},stream:{}},ub:{node:{Ua:Q.Ma.Ua,
+Ta:Q.Ma.Ta},stream:Gb}});c=Hb(a,b,c,d);R(c.mode)?(c.Ma=Q.Va.dir.node,c.Na=Q.Va.dir.stream,c.Oa={}):32768===(c.mode&61440)?(c.Ma=Q.Va.file.node,c.Na=Q.Va.file.stream,c.Sa=0,c.Oa=null):40960===(c.mode&61440)?(c.Ma=Q.Va.link.node,c.Na=Q.Va.link.stream):8192===(c.mode&61440)&&(c.Ma=Q.Va.ub.node,c.Na=Q.Va.ub.stream);c.timestamp=Date.now();a&&(a.Oa[b]=c,a.timestamp=c.timestamp);return c},Sb:function(a){return a.Oa?a.Oa.subarray?a.Oa.subarray(0,a.Sa):new Uint8Array(a.Oa):new Uint8Array(0)},vb:function(a,
+b){var c=a.Oa?a.Oa.length:0;c>=b||(b=Math.max(b,c*(1048576>c?2:1.125)>>>0),0!=c&&(b=Math.max(b,256)),c=a.Oa,a.Oa=new Uint8Array(b),0<a.Sa&&a.Oa.set(c.subarray(0,a.Sa),0))},Ob:function(a,b){if(a.Sa!=b)if(0==b)a.Oa=null,a.Sa=0;else{var c=a.Oa;a.Oa=new Uint8Array(b);c&&a.Oa.set(c.subarray(0,Math.min(b,a.Sa)));a.Sa=b}},Ma:{Ua:function(a){var b={};b.dev=8192===(a.mode&61440)?a.id:1;b.ino=a.id;b.mode=a.mode;b.nlink=1;b.uid=0;b.gid=0;b.rdev=a.rdev;R(a.mode)?b.size=4096:32768===(a.mode&61440)?b.size=a.Sa:
+40960===(a.mode&61440)?b.size=a.link.length:b.size=0;b.atime=new Date(a.timestamp);b.mtime=new Date(a.timestamp);b.ctime=new Date(a.timestamp);b.Gb=4096;b.blocks=Math.ceil(b.size/b.Gb);return b},Ta:function(a,b){void 0!==b.mode&&(a.mode=b.mode);void 0!==b.timestamp&&(a.timestamp=b.timestamp);void 0!==b.size&&Q.Ob(a,b.size)},lookup:function(){throw Ib[44];},gb:function(a,b,c,d){return Q.createNode(a,b,c,d)},rename:function(a,b,c){if(R(a.mode)){try{var d=Jb(b,c)}catch(g){}if(d)for(var f in d.Oa)throw new P(55);
+}delete a.parent.Oa[a.name];a.parent.timestamp=Date.now();a.name=c;b.Oa[c]=a;b.timestamp=a.parent.timestamp;a.parent=b},unlink:function(a,b){delete a.Oa[b];a.timestamp=Date.now()},rmdir:function(a,b){var c=Jb(a,b),d;for(d in c.Oa)throw new P(55);delete a.Oa[b];a.timestamp=Date.now()},readdir:function(a){var b=[".",".."],c;for(c in a.Oa)a.Oa.hasOwnProperty(c)&&b.push(c);return b},symlink:function(a,b,c){a=Q.createNode(a,b,41471,0);a.link=c;return a},readlink:function(a){if(40960!==(a.mode&61440))throw new P(28);
+return a.link}},Na:{read:function(a,b,c,d,f){var g=a.node.Oa;if(f>=a.node.Sa)return 0;a=Math.min(a.node.Sa-f,d);if(8<a&&g.subarray)b.set(g.subarray(f,f+a),c);else for(d=0;d<a;d++)b[c+d]=g[f+d];return a},write:function(a,b,c,d,f,g){b.buffer===z.buffer&&(g=!1);if(!d)return 0;a=a.node;a.timestamp=Date.now();if(b.subarray&&(!a.Oa||a.Oa.subarray)){if(g)return a.Oa=b.subarray(c,c+d),a.Sa=d;if(0===a.Sa&&0===f)return a.Oa=b.slice(c,c+d),a.Sa=d;if(f+d<=a.Sa)return a.Oa.set(b.subarray(c,c+d),f),d}Q.vb(a,f+
+d);if(a.Oa.subarray&&b.subarray)a.Oa.set(b.subarray(c,c+d),f);else for(g=0;g<d;g++)a.Oa[f+g]=b[c+g];a.Sa=Math.max(a.Sa,f+d);return d},Za:function(a,b,c){1===c?b+=a.position:2===c&&32768===(a.node.mode&61440)&&(b+=a.node.Sa);if(0>b)throw new P(28);return b},sb:function(a,b,c){Q.vb(a.node,b+c);a.node.Sa=Math.max(a.node.Sa,b+c)},hb:function(a,b,c,d,f,g){if(0!==b)throw new P(28);if(32768!==(a.node.mode&61440))throw new P(43);a=a.node.Oa;if(g&2||a.buffer!==Ya){if(0<d||d+c<a.length)a.subarray?a=a.subarray(d,
+d+c):a=Array.prototype.slice.call(a,d,d+c);d=!0;g=65536*Math.ceil(c/65536);for(b=ca(g);c<g;)z[b+c++]=0;c=b;if(!c)throw new P(48);z.set(a,c)}else d=!1,c=a.byteOffset;return{Nb:c,kb:d}},ib:function(a,b,c,d,f){if(32768!==(a.node.mode&61440))throw new P(43);if(f&2)return 0;Q.Na.write(a,b,0,d,c,!1);return 0}}},Kb=null,Lb={},S=[],Mb=1,U=null,Nb=!0,V={},P=null,Ib={};
+function W(a,b){a=zb("/",a);b=b||{};if(!a)return{path:"",node:null};var c={wb:!0,rb:0},d;for(d in c)void 0===b[d]&&(b[d]=c[d]);if(8<b.rb)throw new P(32);a=ub(a.split("/").filter(function(m){return!!m}),!1);var f=Kb;c="/";for(d=0;d<a.length;d++){var g=d===a.length-1;if(g&&b.parent)break;f=Jb(f,a[d]);c=r(c+"/"+a[d]);f.ab&&(!g||g&&b.wb)&&(f=f.ab.root);if(!g||b.Ya)for(g=0;40960===(f.mode&61440);)if(f=Ob(c),c=zb(vb(c),f),f=W(c,{rb:b.rb}).node,40<g++)throw new P(32);}return{path:c,node:f}}
+function Pb(a){for(var b;;){if(a===a.parent)return a=a.Wa.yb,b?"/"!==a[a.length-1]?a+"/"+b:a+b:a;b=b?a.name+"/"+b:a.name;a=a.parent}}function Qb(a,b){for(var c=0,d=0;d<b.length;d++)c=(c<<5)-c+b.charCodeAt(d)|0;return(a+c>>>0)%U.length}function Rb(a){var b=Qb(a.parent.id,a.name);if(U[b]===a)U[b]=a.bb;else for(b=U[b];b;){if(b.bb===a){b.bb=a.bb;break}b=b.bb}}
+function Jb(a,b){var c;if(c=(c=Sb(a,"x"))?c:a.Ma.lookup?0:2)throw new P(c,a);for(c=U[Qb(a.id,b)];c;c=c.bb){var d=c.name;if(c.parent.id===a.id&&d===b)return c}return a.Ma.lookup(a,b)}function Hb(a,b,c,d){a=new Tb(a,b,c,d);b=Qb(a.parent.id,a.name);a.bb=U[b];return U[b]=a}function R(a){return 16384===(a&61440)}var Ub={r:0,"r+":2,w:577,"w+":578,a:1089,"a+":1090};function Vb(a){var b=["r","w","rw"][a&3];a&512&&(b+="w");return b}
+function Sb(a,b){if(Nb)return 0;if(!b.includes("r")||a.mode&292){if(b.includes("w")&&!(a.mode&146)||b.includes("x")&&!(a.mode&73))return 2}else return 2;return 0}function Wb(a,b){try{return Jb(a,b),20}catch(c){}return Sb(a,"wx")}function Xb(a,b,c){try{var d=Jb(a,b)}catch(f){return f.Pa}if(a=Sb(a,"wx"))return a;if(c){if(!R(d.mode))return 54;if(d===d.parent||"/"===Pb(d))return 10}else if(R(d.mode))return 31;return 0}function Yb(a){var b=4096;for(a=a||0;a<=b;a++)if(!S[a])return a;throw new P(33);}
+function Zb(a,b){$b||($b=function(){},$b.prototype={});var c=new $b,d;for(d in a)c[d]=a[d];a=c;b=Yb(b);a.fd=b;return S[b]=a}var Gb={open:function(a){a.Na=Lb[a.node.rdev].Na;a.Na.open&&a.Na.open(a)},Za:function(){throw new P(70);}};function Cb(a,b){Lb[a]={Na:b}}
+function ac(a,b){var c="/"===b,d=!b;if(c&&Kb)throw new P(10);if(!c&&!d){var f=W(b,{wb:!1});b=f.path;f=f.node;if(f.ab)throw new P(10);if(!R(f.mode))throw new P(54);}b={type:a,Tb:{},yb:b,Lb:[]};a=a.Wa(b);a.Wa=b;b.root=a;c?Kb=a:f&&(f.ab=b,f.Wa&&f.Wa.Lb.push(b))}function ea(a,b,c){var d=W(a,{parent:!0}).node;a=xb(a);if(!a||"."===a||".."===a)throw new P(28);var f=Wb(d,a);if(f)throw new P(f);if(!d.Ma.gb)throw new P(63);return d.Ma.gb(d,a,b,c)}
+function X(a,b){return ea(a,(void 0!==b?b:511)&1023|16384,0)}function bc(a,b,c){"undefined"===typeof c&&(c=b,b=438);ea(a,b|8192,c)}function cc(a,b){if(!zb(a))throw new P(44);var c=W(b,{parent:!0}).node;if(!c)throw new P(44);b=xb(b);var d=Wb(c,b);if(d)throw new P(d);if(!c.Ma.symlink)throw new P(63);c.Ma.symlink(c,b,a)}
+function ua(a){var b=W(a,{parent:!0}).node,c=xb(a),d=Jb(b,c),f=Xb(b,c,!1);if(f)throw new P(f);if(!b.Ma.unlink)throw new P(63);if(d.ab)throw new P(10);try{V.willDeletePath&&V.willDeletePath(a)}catch(g){J("FS.trackingDelegate['willDeletePath']('"+a+"') threw an exception: "+g.message)}b.Ma.unlink(b,c);Rb(d);try{if(V.onDeletePath)V.onDeletePath(a)}catch(g){J("FS.trackingDelegate['onDeletePath']('"+a+"') threw an exception: "+g.message)}}
+function Ob(a){a=W(a).node;if(!a)throw new P(44);if(!a.Ma.readlink)throw new P(28);return zb(Pb(a.parent),a.Ma.readlink(a))}function dc(a,b){a=W(a,{Ya:!b}).node;if(!a)throw new P(44);if(!a.Ma.Ua)throw new P(63);return a.Ma.Ua(a)}function ec(a){return dc(a,!0)}function fa(a,b){a="string"===typeof a?W(a,{Ya:!0}).node:a;if(!a.Ma.Ta)throw new P(63);a.Ma.Ta(a,{mode:b&4095|a.mode&-4096,timestamp:Date.now()})}
+function fc(a){a="string"===typeof a?W(a,{Ya:!0}).node:a;if(!a.Ma.Ta)throw new P(63);a.Ma.Ta(a,{timestamp:Date.now()})}function hc(a,b){if(0>b)throw new P(28);a="string"===typeof a?W(a,{Ya:!0}).node:a;if(!a.Ma.Ta)throw new P(63);if(R(a.mode))throw new P(31);if(32768!==(a.mode&61440))throw new P(28);var c=Sb(a,"w");if(c)throw new P(c);a.Ma.Ta(a,{size:b,timestamp:Date.now()})}
+function v(a,b,c,d){if(""===a)throw new P(44);if("string"===typeof b){var f=Ub[b];if("undefined"===typeof f)throw Error("Unknown file open mode: "+b);b=f}c=b&64?("undefined"===typeof c?438:c)&4095|32768:0;if("object"===typeof a)var g=a;else{a=r(a);try{g=W(a,{Ya:!(b&131072)}).node}catch(m){}}f=!1;if(b&64)if(g){if(b&128)throw new P(20);}else g=ea(a,c,0),f=!0;if(!g)throw new P(44);8192===(g.mode&61440)&&(b&=-513);if(b&65536&&!R(g.mode))throw new P(54);if(!f&&(c=g?40960===(g.mode&61440)?32:R(g.mode)&&
+("r"!==Vb(b)||b&512)?31:Sb(g,Vb(b)):44))throw new P(c);b&512&&hc(g,0);b&=-131713;d=Zb({node:g,path:Pb(g),flags:b,seekable:!0,position:0,Na:g.Na,Qb:[],error:!1},d);d.Na.open&&d.Na.open(d);!e.logReadFiles||b&1||(Kc||(Kc={}),a in Kc||(Kc[a]=1,J("FS.trackingDelegate error on read file: "+a)));try{V.onOpenFile&&(g=0,1!==(b&2097155)&&(g|=1),0!==(b&2097155)&&(g|=2),V.onOpenFile(a,g))}catch(m){J("FS.trackingDelegate['onOpenFile']('"+a+"', flags) threw an exception: "+m.message)}return d}
+function la(a){if(null===a.fd)throw new P(8);a.ob&&(a.ob=null);try{a.Na.close&&a.Na.close(a)}catch(b){throw b;}finally{S[a.fd]=null}a.fd=null}function Lc(a,b,c){if(null===a.fd)throw new P(8);if(!a.seekable||!a.Na.Za)throw new P(70);if(0!=c&&1!=c&&2!=c)throw new P(28);a.position=a.Na.Za(a,b,c);a.Qb=[]}
+function Nc(a,b,c,d,f){if(0>d||0>f)throw new P(28);if(null===a.fd)throw new P(8);if(1===(a.flags&2097155))throw new P(8);if(R(a.node.mode))throw new P(31);if(!a.Na.read)throw new P(28);var g="undefined"!==typeof f;if(!g)f=a.position;else if(!a.seekable)throw new P(70);b=a.Na.read(a,b,c,d,f);g||(a.position+=b);return b}
+function ka(a,b,c,d,f,g){if(0>d||0>f)throw new P(28);if(null===a.fd)throw new P(8);if(0===(a.flags&2097155))throw new P(8);if(R(a.node.mode))throw new P(31);if(!a.Na.write)throw new P(28);a.seekable&&a.flags&1024&&Lc(a,0,2);var m="undefined"!==typeof f;if(!m)f=a.position;else if(!a.seekable)throw new P(70);b=a.Na.write(a,b,c,d,f,g);m||(a.position+=b);try{if(a.path&&V.onWriteToFile)V.onWriteToFile(a.path)}catch(t){J("FS.trackingDelegate['onWriteToFile']('"+a.path+"') threw an exception: "+t.message)}return b}
+function ta(a){var b={encoding:"binary"};b=b||{};b.flags=b.flags||0;b.encoding=b.encoding||"binary";if("utf8"!==b.encoding&&"binary"!==b.encoding)throw Error('Invalid encoding type "'+b.encoding+'"');var c,d=v(a,b.flags);a=dc(a).size;var f=new Uint8Array(a);Nc(d,f,0,a,0);"utf8"===b.encoding?c=Wa(f,0):"binary"===b.encoding&&(c=f);la(d);return c}
+function Oc(){P||(P=function(a,b){this.node=b;this.Pb=function(c){this.Pa=c};this.Pb(a);this.message="FS error"},P.prototype=Error(),P.prototype.constructor=P,[44].forEach(function(a){Ib[a]=new P(a);Ib[a].stack="<generic error, no stack>"}))}var Pc;function da(a,b){var c=0;a&&(c|=365);b&&(c|=146);return c}
+function Qc(a,b,c){a=r("/dev/"+a);var d=da(!!b,!!c);Rc||(Rc=64);var f=Rc++<<8|0;Cb(f,{open:function(g){g.seekable=!1},close:function(){c&&c.buffer&&c.buffer.length&&c(10)},read:function(g,m,t,w){for(var u=0,C=0;C<w;C++){try{var H=b()}catch(aa){throw new P(29);}if(void 0===H&&0===u)throw new P(6);if(null===H||void 0===H)break;u++;m[t+C]=H}u&&(g.node.timestamp=Date.now());return u},write:function(g,m,t,w){for(var u=0;u<w;u++)try{c(m[t+u])}catch(C){throw new P(29);}w&&(g.node.timestamp=Date.now());return u}});
+bc(a,d,f)}var Rc,Y={},$b,Kc,Sc={};
+function Tc(a,b,c){try{var d=a(b)}catch(f){if(f&&f.node&&r(b)!==r(Pb(f.node)))return-54;throw f;}L[c>>2]=d.dev;L[c+4>>2]=0;L[c+8>>2]=d.ino;L[c+12>>2]=d.mode;L[c+16>>2]=d.nlink;L[c+20>>2]=d.uid;L[c+24>>2]=d.gid;L[c+28>>2]=d.rdev;L[c+32>>2]=0;M=[d.size>>>0,(N=d.size,1<=+Math.abs(N)?0<N?(Math.min(+Math.floor(N/4294967296),4294967295)|0)>>>0:~~+Math.ceil((N-+(~~N>>>0))/4294967296)>>>0:0)];L[c+40>>2]=M[0];L[c+44>>2]=M[1];L[c+48>>2]=4096;L[c+52>>2]=d.blocks;L[c+56>>2]=d.atime.getTime()/1E3|0;L[c+60>>2]=
+0;L[c+64>>2]=d.mtime.getTime()/1E3|0;L[c+68>>2]=0;L[c+72>>2]=d.ctime.getTime()/1E3|0;L[c+76>>2]=0;M=[d.ino>>>0,(N=d.ino,1<=+Math.abs(N)?0<N?(Math.min(+Math.floor(N/4294967296),4294967295)|0)>>>0:~~+Math.ceil((N-+(~~N>>>0))/4294967296)>>>0:0)];L[c+80>>2]=M[0];L[c+84>>2]=M[1];return 0}var Uc=void 0;function Vc(){Uc+=4;return L[Uc-4>>2]}function Z(a){a=S[a];if(!a)throw new P(8);return a}var Wc;
+Aa?Wc=function(){var a=process.hrtime();return 1E3*a[0]+a[1]/1E6}:"undefined"!==typeof dateNow?Wc=dateNow:Wc=function(){return performance.now()};var Xc={};function Yc(){if(!Zc){var a={USER:"web_user",LOGNAME:"web_user",PATH:"/",PWD:"/",HOME:"/home/web_user",LANG:("object"===typeof navigator&&navigator.languages&&navigator.languages[0]||"C").replace("-","_")+".UTF-8",_:xa||"./this.program"},b;for(b in Xc)void 0===Xc[b]?delete a[b]:a[b]=Xc[b];var c=[];for(b in a)c.push(b+"="+a[b]);Zc=c}return Zc}var Zc;
+function Tb(a,b,c,d){a||(a=this);this.parent=a;this.Wa=a.Wa;this.ab=null;this.id=Mb++;this.name=b;this.mode=c;this.Ma={};this.Na={};this.rdev=d}Object.defineProperties(Tb.prototype,{read:{get:function(){return 365===(this.mode&365)},set:function(a){a?this.mode|=365:this.mode&=-366}},write:{get:function(){return 146===(this.mode&146)},set:function(a){a?this.mode|=146:this.mode&=-147}}});Oc();U=Array(4096);ac(Q,"/");X("/tmp");X("/home");X("/home/web_user");
+(function(){X("/dev");Cb(259,{read:function(){return 0},write:function(b,c,d,f){return f}});bc("/dev/null",259);Bb(1280,Eb);Bb(1536,Fb);bc("/dev/tty",1280);bc("/dev/tty1",1536);var a=yb();Qc("random",a);Qc("urandom",a);X("/dev/shm");X("/dev/shm/tmp")})();
+(function(){X("/proc");var a=X("/proc/self");X("/proc/self/fd");ac({Wa:function(){var b=Hb(a,"fd",16895,73);b.Ma={lookup:function(c,d){var f=S[+d];if(!f)throw new P(8);c={parent:null,Wa:{yb:"fake"},Ma:{readlink:function(){return f.path}}};return c.parent=c}};return b}},"/proc/self/fd")})();function ma(a,b){var c=Array(ba(a)+1);a=k(a,c,0,c.length);b&&(c.length=a);return c}
+var cd={a:function(a,b,c,d){I("Assertion failed: "+A(a)+", at: "+[b?A(b):"unknown filename",c,d?A(d):"unknown function"])},s:function(a,b){mb();a=new Date(1E3*L[a>>2]);L[b>>2]=a.getSeconds();L[b+4>>2]=a.getMinutes();L[b+8>>2]=a.getHours();L[b+12>>2]=a.getDate();L[b+16>>2]=a.getMonth();L[b+20>>2]=a.getFullYear()-1900;L[b+24>>2]=a.getDay();var c=new Date(a.getFullYear(),0,1);L[b+28>>2]=(a.getTime()-c.getTime())/864E5|0;L[b+36>>2]=-(60*a.getTimezoneOffset());var d=(new Date(a.getFullYear(),6,1)).getTimezoneOffset();
+c=c.getTimezoneOffset();a=(d!=c&&a.getTimezoneOffset()==Math.min(c,d))|0;L[b+32>>2]=a;a=L[qb()+(a?4:0)>>2];L[b+40>>2]=a;return b},F:function(a,b){try{a=A(a);if(b&-8)var c=-28;else{var d;(d=W(a,{Ya:!0}).node)?(a="",b&4&&(a+="r"),b&2&&(a+="w"),b&1&&(a+="x"),c=a&&Sb(d,a)?-2:0):c=-44}return c}catch(f){return"undefined"!==typeof Y&&f instanceof P||I(f),-f.Pa}},h:function(a,b){try{return a=A(a),fa(a,b),0}catch(c){return"undefined"!==typeof Y&&c instanceof P||I(c),-c.Pa}},y:function(a){try{return a=A(a),
+fc(a),0}catch(b){return"undefined"!==typeof Y&&b instanceof P||I(b),-b.Pa}},i:function(a,b){try{var c=S[a];if(!c)throw new P(8);fa(c.node,b);return 0}catch(d){return"undefined"!==typeof Y&&d instanceof P||I(d),-d.Pa}},z:function(a){try{var b=S[a];if(!b)throw new P(8);fc(b.node);return 0}catch(c){return"undefined"!==typeof Y&&c instanceof P||I(c),-c.Pa}},b:function(a,b,c){Uc=c;try{var d=Z(a);switch(b){case 0:var f=Vc();return 0>f?-28:v(d.path,d.flags,0,f).fd;case 1:case 2:return 0;case 3:return d.flags;
+case 4:return f=Vc(),d.flags|=f,0;case 12:return f=Vc(),Ma[f+0>>1]=2,0;case 13:case 14:return 0;case 16:case 8:return-28;case 9:return L[$c()>>2]=28,-1;default:return-28}}catch(g){return"undefined"!==typeof Y&&g instanceof P||I(g),-g.Pa}},j:function(a,b){try{var c=Z(a);return Tc(dc,c.path,b)}catch(d){return"undefined"!==typeof Y&&d instanceof P||I(d),-d.Pa}},E:function(a,b,c){try{var d=S[a];if(!d)throw new P(8);if(0===(d.flags&2097155))throw new P(28);hc(d.node,c);return 0}catch(f){return"undefined"!==
+typeof Y&&f instanceof P||I(f),-f.Pa}},C:function(a,b){try{if(0===b)return-28;if(b<ba("/")+1)return-68;k("/",n,a,b);return a}catch(c){return"undefined"!==typeof Y&&c instanceof P||I(c),-c.Pa}},x:function(){return 0},d:function(){return 42},k:function(a,b){try{return a=A(a),Tc(ec,a,b)}catch(c){return"undefined"!==typeof Y&&c instanceof P||I(c),-c.Pa}},J:function(a,b){try{return a=A(a),a=r(a),"/"===a[a.length-1]&&(a=a.substr(0,a.length-1)),X(a,b),0}catch(c){return"undefined"!==typeof Y&&c instanceof
+P||I(c),-c.Pa}},G:function(a,b,c,d,f,g){try{a:{g<<=12;var m=!1;if(0!==(d&16)&&0!==a%65536)var t=-28;else{if(0!==(d&32)){var w=ad(65536,b);if(!w){t=-48;break a}bd(w,0,b);m=!0}else{var u=S[f];if(!u){t=-8;break a}var C=g;if(0!==(c&2)&&0===(d&2)&&2!==(u.flags&2097155))throw new P(2);if(1===(u.flags&2097155))throw new P(2);if(!u.Na.hb)throw new P(43);var H=u.Na.hb(u,a,b,C,c,d);w=H.Nb;m=H.kb}Sc[w]={Kb:w,Jb:b,kb:m,fd:f,Mb:c,flags:d,offset:g};t=w}}return t}catch(aa){return"undefined"!==typeof Y&&aa instanceof
+P||I(aa),-aa.Pa}},H:function(a,b){try{if(-1===(a|0)||0===b)var c=-28;else{var d=Sc[a];if(d&&b===d.Jb){var f=S[d.fd];if(f&&d.Mb&2){var g=d.flags,m=d.offset,t=n.slice(a,a+b);f&&f.Na.ib&&f.Na.ib(f,t,m,b,g)}Sc[a]=null;d.kb&&oa(d.Kb)}c=0}return c}catch(w){return"undefined"!==typeof Y&&w instanceof P||I(w),-w.Pa}},I:function(a,b,c){Uc=c;try{var d=A(a),f=c?Vc():0;return v(d,b,f).fd}catch(g){return"undefined"!==typeof Y&&g instanceof P||I(g),-g.Pa}},A:function(a,b,c){try{a=A(a);if(0>=c)var d=-28;else{var f=
+Ob(a),g=Math.min(c,ba(f)),m=z[b+g];k(f,n,b,c+1);z[b+g]=m;d=g}return d}catch(t){return"undefined"!==typeof Y&&t instanceof P||I(t),-t.Pa}},u:function(a){try{a=A(a);var b=W(a,{parent:!0}).node,c=xb(a),d=Jb(b,c),f=Xb(b,c,!0);if(f)throw new P(f);if(!b.Ma.rmdir)throw new P(63);if(d.ab)throw new P(10);try{V.willDeletePath&&V.willDeletePath(a)}catch(g){J("FS.trackingDelegate['willDeletePath']('"+a+"') threw an exception: "+g.message)}b.Ma.rmdir(b,c);Rb(d);try{if(V.onDeletePath)V.onDeletePath(a)}catch(g){J("FS.trackingDelegate['onDeletePath']('"+
+a+"') threw an exception: "+g.message)}return 0}catch(g){return"undefined"!==typeof Y&&g instanceof P||I(g),-g.Pa}},e:function(a,b){try{return a=A(a),Tc(dc,a,b)}catch(c){return"undefined"!==typeof Y&&c instanceof P||I(c),-c.Pa}},w:function(a){try{return a=A(a),ua(a),0}catch(b){return"undefined"!==typeof Y&&b instanceof P||I(b),-b.Pa}},l:function(){return 2147483648},n:function(a,b,c){n.copyWithin(a,b,b+c)},c:function(a){var b=n.length;a>>>=0;if(2147483648<a)return!1;for(var c=1;4>=c;c*=2){var d=b*
+(1+.2/c);d=Math.min(d,a+100663296);d=Math.max(a,d);0<d%65536&&(d+=65536-d%65536);a:{try{Pa.grow(Math.min(2147483648,d)-Ya.byteLength+65535>>>16);Za();var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},r:function(a){for(var b=Wc();Wc()-b<a;);},p:function(a,b){try{var c=0;Yc().forEach(function(d,f){var g=b+c;f=L[a+4*f>>2]=g;for(g=0;g<d.length;++g)z[f++>>0]=d.charCodeAt(g);z[f>>0]=0;c+=d.length+1});return 0}catch(d){return"undefined"!==typeof Y&&d instanceof P||I(d),d.Pa}},q:function(a,b){try{var c=
+Yc();L[a>>2]=c.length;var d=0;c.forEach(function(f){d+=f.length+1});L[b>>2]=d;return 0}catch(f){return"undefined"!==typeof Y&&f instanceof P||I(f),f.Pa}},f:function(a){try{var b=Z(a);la(b);return 0}catch(c){return"undefined"!==typeof Y&&c instanceof P||I(c),c.Pa}},o:function(a,b){try{var c=Z(a);z[b>>0]=c.tty?2:R(c.mode)?3:40960===(c.mode&61440)?7:4;return 0}catch(d){return"undefined"!==typeof Y&&d instanceof P||I(d),d.Pa}},t:function(a,b,c,d){try{a:{for(var f=Z(a),g=a=0;g<c;g++){var m=L[b+(8*g+4)>>
+2],t=Nc(f,z,L[b+8*g>>2],m,void 0);if(0>t){var w=-1;break a}a+=t;if(t<m)break}w=a}L[d>>2]=w;return 0}catch(u){return"undefined"!==typeof Y&&u instanceof P||I(u),u.Pa}},m:function(a,b,c,d,f){try{var g=Z(a);a=4294967296*c+(b>>>0);if(-9007199254740992>=a||9007199254740992<=a)return-61;Lc(g,a,d);M=[g.position>>>0,(N=g.position,1<=+Math.abs(N)?0<N?(Math.min(+Math.floor(N/4294967296),4294967295)|0)>>>0:~~+Math.ceil((N-+(~~N>>>0))/4294967296)>>>0:0)];L[f>>2]=M[0];L[f+4>>2]=M[1];g.ob&&0===a&&0===d&&(g.ob=
+null);return 0}catch(m){return"undefined"!==typeof Y&&m instanceof P||I(m),m.Pa}},D:function(a){try{var b=Z(a);return b.Na&&b.Na.fsync?-b.Na.fsync(b):0}catch(c){return"undefined"!==typeof Y&&c instanceof P||I(c),c.Pa}},v:function(a,b,c,d){try{a:{for(var f=Z(a),g=a=0;g<c;g++){var m=ka(f,z,L[b+8*g>>2],L[b+(8*g+4)>>2],void 0);if(0>m){var t=-1;break a}a+=m}t=a}L[d>>2]=t;return 0}catch(w){return"undefined"!==typeof Y&&w instanceof P||I(w),w.Pa}},g:function(a){var b=Date.now();L[a>>2]=b/1E3|0;L[a+4>>2]=
+b%1E3*1E3|0;return 0},K:function(a){var b=Date.now()/1E3|0;a&&(L[a>>2]=b);return b},B:function(a,b){if(b){var c=b+8;b=1E3*L[c>>2];b+=L[c+4>>2]/1E3}else b=Date.now();a=A(a);try{var d=W(a,{Ya:!0}).node;d.Ma.Ta(d,{timestamp:Math.max(b,b)});var f=0}catch(g){if(!(g instanceof P)){b:{f=Error();if(!f.stack){try{throw Error();}catch(m){f=m}if(!f.stack){f="(no stack trace available)";break b}}f=f.stack.toString()}e.extraStackTrace&&(f+="\n"+e.extraStackTrace());f=lb(f);throw g+" : "+f;}f=g.Pa;L[$c()>>2]=f;
+f=-1}return f}};
+(function(){function a(f){e.asm=f.exports;Pa=e.asm.L;Za();K=e.asm.Da;ab.unshift(e.asm.M);db--;e.monitorRunDependencies&&e.monitorRunDependencies(db);0==db&&(null!==eb&&(clearInterval(eb),eb=null),fb&&(f=fb,fb=null,f()))}function b(f){a(f.instance)}function c(f){return jb().then(function(g){return WebAssembly.instantiate(g,d)}).then(f,function(g){J("failed to asynchronously prepare wasm: "+g);I(g)})}var d={a:cd};db++;e.monitorRunDependencies&&e.monitorRunDependencies(db);if(e.instantiateWasm)try{return e.instantiateWasm(d,a)}catch(f){return J("Module.instantiateWasm callback failed with error: "+
+f),!1}(function(){return La||"function"!==typeof WebAssembly.instantiateStreaming||gb()||O.startsWith("file://")||"function"!==typeof fetch?c(b):fetch(O,{credentials:"same-origin"}).then(function(f){return WebAssembly.instantiateStreaming(f,d).then(b,function(g){J("wasm streaming compile failed: "+g);J("falling back to ArrayBuffer instantiation");return c(b)})})})();return{}})();e.___wasm_call_ctors=function(){return(e.___wasm_call_ctors=e.asm.M).apply(null,arguments)};
+var bd=e._memset=function(){return(bd=e._memset=e.asm.N).apply(null,arguments)};e._sqlite3_free=function(){return(e._sqlite3_free=e.asm.O).apply(null,arguments)};var $c=e.___errno_location=function(){return($c=e.___errno_location=e.asm.P).apply(null,arguments)};e._sqlite3_step=function(){return(e._sqlite3_step=e.asm.Q).apply(null,arguments)};e._sqlite3_finalize=function(){return(e._sqlite3_finalize=e.asm.R).apply(null,arguments)};
+e._sqlite3_prepare_v2=function(){return(e._sqlite3_prepare_v2=e.asm.S).apply(null,arguments)};e._sqlite3_reset=function(){return(e._sqlite3_reset=e.asm.T).apply(null,arguments)};e._sqlite3_clear_bindings=function(){return(e._sqlite3_clear_bindings=e.asm.U).apply(null,arguments)};e._sqlite3_value_blob=function(){return(e._sqlite3_value_blob=e.asm.V).apply(null,arguments)};e._sqlite3_value_text=function(){return(e._sqlite3_value_text=e.asm.W).apply(null,arguments)};
+e._sqlite3_value_bytes=function(){return(e._sqlite3_value_bytes=e.asm.X).apply(null,arguments)};e._sqlite3_value_double=function(){return(e._sqlite3_value_double=e.asm.Y).apply(null,arguments)};e._sqlite3_value_int=function(){return(e._sqlite3_value_int=e.asm.Z).apply(null,arguments)};e._sqlite3_value_type=function(){return(e._sqlite3_value_type=e.asm._).apply(null,arguments)};e._sqlite3_result_blob=function(){return(e._sqlite3_result_blob=e.asm.$).apply(null,arguments)};
+e._sqlite3_result_double=function(){return(e._sqlite3_result_double=e.asm.aa).apply(null,arguments)};e._sqlite3_result_error=function(){return(e._sqlite3_result_error=e.asm.ba).apply(null,arguments)};e._sqlite3_result_int=function(){return(e._sqlite3_result_int=e.asm.ca).apply(null,arguments)};e._sqlite3_result_int64=function(){return(e._sqlite3_result_int64=e.asm.da).apply(null,arguments)};e._sqlite3_result_null=function(){return(e._sqlite3_result_null=e.asm.ea).apply(null,arguments)};
+e._sqlite3_result_text=function(){return(e._sqlite3_result_text=e.asm.fa).apply(null,arguments)};e._sqlite3_column_count=function(){return(e._sqlite3_column_count=e.asm.ga).apply(null,arguments)};e._sqlite3_data_count=function(){return(e._sqlite3_data_count=e.asm.ha).apply(null,arguments)};e._sqlite3_column_blob=function(){return(e._sqlite3_column_blob=e.asm.ia).apply(null,arguments)};e._sqlite3_column_bytes=function(){return(e._sqlite3_column_bytes=e.asm.ja).apply(null,arguments)};
+e._sqlite3_column_double=function(){return(e._sqlite3_column_double=e.asm.ka).apply(null,arguments)};e._sqlite3_column_text=function(){return(e._sqlite3_column_text=e.asm.la).apply(null,arguments)};e._sqlite3_column_type=function(){return(e._sqlite3_column_type=e.asm.ma).apply(null,arguments)};e._sqlite3_column_name=function(){return(e._sqlite3_column_name=e.asm.na).apply(null,arguments)};e._sqlite3_bind_blob=function(){return(e._sqlite3_bind_blob=e.asm.oa).apply(null,arguments)};
+e._sqlite3_bind_double=function(){return(e._sqlite3_bind_double=e.asm.pa).apply(null,arguments)};e._sqlite3_bind_int=function(){return(e._sqlite3_bind_int=e.asm.qa).apply(null,arguments)};e._sqlite3_bind_text=function(){return(e._sqlite3_bind_text=e.asm.ra).apply(null,arguments)};e._sqlite3_bind_parameter_index=function(){return(e._sqlite3_bind_parameter_index=e.asm.sa).apply(null,arguments)};e._sqlite3_sql=function(){return(e._sqlite3_sql=e.asm.ta).apply(null,arguments)};
+e._sqlite3_normalized_sql=function(){return(e._sqlite3_normalized_sql=e.asm.ua).apply(null,arguments)};e._sqlite3_errmsg=function(){return(e._sqlite3_errmsg=e.asm.va).apply(null,arguments)};e._sqlite3_exec=function(){return(e._sqlite3_exec=e.asm.wa).apply(null,arguments)};e._sqlite3_changes=function(){return(e._sqlite3_changes=e.asm.xa).apply(null,arguments)};e._sqlite3_close_v2=function(){return(e._sqlite3_close_v2=e.asm.ya).apply(null,arguments)};
+e._sqlite3_create_function_v2=function(){return(e._sqlite3_create_function_v2=e.asm.za).apply(null,arguments)};e._sqlite3_open=function(){return(e._sqlite3_open=e.asm.Aa).apply(null,arguments)};var ca=e._malloc=function(){return(ca=e._malloc=e.asm.Ba).apply(null,arguments)},oa=e._free=function(){return(oa=e._free=e.asm.Ca).apply(null,arguments)};e._RegisterExtensionFunctions=function(){return(e._RegisterExtensionFunctions=e.asm.Ea).apply(null,arguments)};
+var qb=e.__get_tzname=function(){return(qb=e.__get_tzname=e.asm.Fa).apply(null,arguments)},pb=e.__get_daylight=function(){return(pb=e.__get_daylight=e.asm.Ga).apply(null,arguments)},ob=e.__get_timezone=function(){return(ob=e.__get_timezone=e.asm.Ha).apply(null,arguments)},pa=e.stackSave=function(){return(pa=e.stackSave=e.asm.Ia).apply(null,arguments)},ra=e.stackRestore=function(){return(ra=e.stackRestore=e.asm.Ja).apply(null,arguments)},y=e.stackAlloc=function(){return(y=e.stackAlloc=e.asm.Ka).apply(null,
+arguments)},ad=e._memalign=function(){return(ad=e._memalign=e.asm.La).apply(null,arguments)};e.cwrap=function(a,b,c,d){c=c||[];var f=c.every(function(g){return"number"===g});return"string"!==b&&f&&!d?Ra(a):function(){return Sa(a,b,c,arguments)}};e.UTF8ToString=A;e.stackSave=pa;e.stackRestore=ra;e.stackAlloc=y;var dd;fb=function ed(){dd||fd();dd||(fb=ed)};
+function fd(){function a(){if(!dd&&(dd=!0,e.calledRun=!0,!Qa)){e.noFSInit||Pc||(Pc=!0,Oc(),e.stdin=e.stdin,e.stdout=e.stdout,e.stderr=e.stderr,e.stdin?Qc("stdin",e.stdin):cc("/dev/tty","/dev/stdin"),e.stdout?Qc("stdout",null,e.stdout):cc("/dev/tty","/dev/stdout"),e.stderr?Qc("stderr",null,e.stderr):cc("/dev/tty1","/dev/stderr"),v("/dev/stdin",0),v("/dev/stdout",1),v("/dev/stderr",1));Nb=!1;kb(ab);if(e.onRuntimeInitialized)e.onRuntimeInitialized();if(e.postRun)for("function"==typeof e.postRun&&(e.postRun=
+[e.postRun]);e.postRun.length;){var b=e.postRun.shift();bb.unshift(b)}kb(bb)}}if(!(0<db)){if(e.preRun)for("function"==typeof e.preRun&&(e.preRun=[e.preRun]);e.preRun.length;)cb();kb($a);0<db||(e.setStatus?(e.setStatus("Running..."),setTimeout(function(){setTimeout(function(){e.setStatus("")},1);a()},1)):a())}}e.run=fd;if(e.preInit)for("function"==typeof e.preInit&&(e.preInit=[e.preInit]);0<e.preInit.length;)e.preInit.pop()();fd();
+
+
+        // The shell-pre.js and emcc-generated code goes above
+        return Module;
+    }); // The end of the promise being returned
+
+  return initSqlJsPromise;
+} // The end of our initSqlJs function
+
+// This bit below is copied almost exactly from what you get when you use the MODULARIZE=1 flag with emcc
+// However, we don't want to use the emcc modularization. See shell-pre.js
+if (typeof exports === 'object' && typeof module === 'object'){
+    module.exports = initSqlJs;
+    // This will allow the module to be used in ES6 or CommonJS
+    module.exports.default = initSqlJs;
+}
+else if (typeof define === 'function' && define['amd']) {
+    define([], function() { return initSqlJs; });
+}
+else if (typeof exports === 'object'){
+    exports["Module"] = initSqlJs;
+}

lib/sql-js/make.sh

@@ -0,0 +1,9 @@
+#!/bin/bash -e
+
+docker build -t sqliteviz/sqljs .
+
+rm -r dist || true
+
+CONTAINER=$(docker create sqliteviz/sqljs)
+docker cp $CONTAINER:/tmp/build/dist .
+docker rm $CONTAINER

lib/sql-js/package.json

@@ -0,0 +1,4 @@
+{
+  "name": "sql.js",
+  "main": "./dist/sql-wasm.js"
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sqliteviz",
-  "version": "1.0.0",
+  "version": "0.14.1",
   "license": "Apache-2.0",
   "private": true,
   "scripts": {
@@ -12,15 +12,14 @@
   "dependencies": {
     "codemirror": "^5.57.0",
     "core-js": "^3.6.5",
-    "debounce": "^1.2.0",
     "nanoid": "^3.1.12",
-    "papaparse": "^5.3.0",
-    "plotly.js": "^1.57.1",
+    "papaparse": "^5.3.1",
+    "plotly.js": "^1.58.4",
     "promise-worker": "^2.0.1",
     "react": "^16.13.1",
-    "react-chart-editor": "^0.42.0",
+    "react-chart-editor": "^0.45.0",
     "react-dom": "^16.13.1",
-    "sql.js": "^1.3.0",
+    "sql.js": "file:./lib/sql-js",
     "sqlite-parser": "^1.0.1",
     "vue": "^2.6.11",
     "vue-codemirror": "^4.0.6",
@@ -48,9 +47,11 @@
     "eslint-plugin-standard": "^4.0.0",
     "eslint-plugin-vue": "^6.2.2",
     "karma": "^3.1.4",
+    "karma-firefox-launcher": "^2.1.0",
     "karma-webpack": "^4.0.2",
     "vue-cli-plugin-ui-karma": "^0.2.5",
     "vue-template-compiler": "^2.6.11",
+    "workbox-webpack-plugin": "^6.1.5",
     "worker-loader": "^3.0.8"
   }
 }

public/index.html

@@ -5,13 +5,94 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
     <link rel="icon" href="<%= BASE_URL %>favicon.png">
+    <link rel="manifest" href="<%= BASE_URL %>manifest.webmanifest">
     <title><%= htmlWebpackPlugin.options.title %></title>
+    <style>
+      #sqliteviz-loading-wrapper {
+        position: fixed;
+        width: 100%;
+        height: 100%;
+        left: 0;
+        top: 0;
+        background-color: white;
+      }
+    
+      #sqliteviz-loading-text {
+        display: block;
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        color: #506784;
+        font-family: sans-serif;
+        font-size: 20px;
+      }
+      
+      #sqliteviz-loading-wrapper svg {
+        display: block;
+        position: absolute;
+        left: 50%;
+        top: 50%;
+        transform: translate(-50%, -50%);
+      }
+
+      #sqliteviz-loading-wrapper circle {
+        position: absolute;
+        left: 0; right: 0; top: 0; bottom: 0;
+        fill: none;
+        stroke-width: 5px;
+        stroke-linecap: round;
+        stroke: #119DFF;
+      }
+
+      #sqliteviz-loading-wrapper circle.bg {
+        stroke: #C8D4E3;
+      }
+
+      #sqliteviz-loading-wrapper circle.front {
+        stroke-dasharray: 402px;
+        animation: sqliteviz-loading 2s linear 0s infinite;
+      }
+
+      @keyframes sqliteviz-loading {
+        0% {
+          stroke-dasharray: 100px 402px;
+          stroke-dashoffset: 0;
+        }
+        50% {
+          stroke-dasharray: 251px;
+          stroke-dashoffset: -251px;
+        }
+        100% {
+          stroke-dasharray: 100px 402px;
+          stroke-dashoffset: -502px;
+        }
+      }
+    </style>
   </head>
   <body>
     <noscript>
       <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
     </noscript>
-    <div id="app"></div>
+    <div id="app">
+      <div id="sqliteviz-loading-wrapper">
+        <div id="sqliteviz-loading-text">LOADING</div>
+        <svg height="170" width="170" viewBox="0 0 170 170">
+          <circle
+            class="bg"
+            cx="85"
+            cy="85"
+            r="80"
+          />
+          <circle
+            class="front"
+            cx="85"
+            cy="85"
+            r="80"
+          />
+        </svg>
+      </div>
+    </div>
     <!-- built files will be auto injected -->
   </body>
 </html>

public/manifest.webmanifest

@@ -0,0 +1,30 @@
+{
+  "background_color": "white",
+  "description": "Sqliteviz is a single-page application for fully client-side visualisation of SQLite databases or CSV.",
+  "display": "fullscreen",
+  "icons": [
+    {
+      "src": "favicon.png",
+      "sizes": "32x32",
+      "type": "image/png"
+    },
+    {
+      "src": "Logo48x48.png",
+      "sizes": "48x48",
+      "type": "image/png"
+    },
+    {
+      "src": "Logo192x192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "Logo512x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ],
+  "name": "sqliteviz",
+  "short_name": "sqliteviz",
+  "start_url": "index.html"
+}

src/App.vue

@@ -60,4 +60,7 @@ button,
 body {
   margin: 0;
 }
+.CodeMirror-hints {
+  z-index: 999 !important;
+}
 </style>

src/assets/styles/tables.css

@@ -1,5 +1,5 @@
 .rounded-bg {
-  padding: 40px 5px 5px;
+  padding: 35px 5px 5px;
   background-color: white;
   border-radius: 5px;
   position: relative;
@@ -36,7 +36,7 @@
 }
 table {
   min-width: 100%;
-  margin-top: -40px;
+  margin-top: -35px;
   border-collapse: collapse;
 }
 thead th, .fixed-header {
@@ -56,7 +56,7 @@ tbody td {
   border-right: 1px solid var(--color-border-light);
 }
 td, th, .fixed-header {
-  padding: 12px 24px;
+  padding: 8px 24px;
   white-space: nowrap;
 }
 

src/assets/styles/tooltips.css

@@ -6,7 +6,6 @@
   padding: 0 6px;
   line-height: 19px;;
   position: fixed;
-  z-index: 5;
   height: 19px;
   border-radius: var(--border-radius-medium);
   white-space: nowrap;

src/components/CsvImport/DelimiterSelector/index.vue

@@ -40,7 +40,7 @@
 </template>
 
 <script>
-import ascii from '@/ascii'
+import ascii from './ascii'
 import DropDownChevron from '@/components/svg/dropDownChevron'
 import ClearIcon from '@/components/svg/clear'
 

src/components/CsvImport/csv.js

@@ -10,14 +10,23 @@ export default {
   getResult (source) {
     const result = {}
     if (source.meta.fields) {
-      result.columns = source.meta.fields
+      result.columns = source.meta.fields.map(col => col.trim())
       result.values = source.data.map(row => {
         const resultRow = []
-        result.columns.forEach(col => { resultRow.push(row[col]) })
+        source.meta.fields.forEach(col => {
+          let value = row[col]
+          if (value instanceof Date) {
+            value = value.toISOString()
+          }
+          resultRow.push(value)
+        })
+
         return resultRow
       })
     } else {
-      result.values = source.data
+      result.values = source.data.map(row => row.map(value =>
+        value instanceof Date ? value.toISOString() : value
+      ))
       result.columns = []
       for (let i = 1; i <= source.data[0].length; i++) {
         result.columns.push(`col${i}`)

src/components/CsvImport/index.vue

@@ -0,0 +1,381 @@
+<template>
+  <modal
+    :name="dialogName"
+    classes="dialog"
+    height="auto"
+    width="80%"
+    scrollable
+    :clickToClose="false"
+  >
+    <div class="dialog-header">
+      CSV import
+      <close-icon @click="cancelCsvImport" :disabled="disableDialog"/>
+    </div>
+    <div class="dialog-body">
+      <text-field
+        label="Table name"
+        v-model="tableName"
+        width="484px"
+        :disabled="disableDialog"
+        :error-msg="tableNameError"
+        id="csv-table-name"
+      />
+      <div class="chars">
+        <delimiter-selector
+          v-model="delimiter"
+          width="210px"
+          class="char-input"
+          @input="previewCsv"
+          :disabled="disableDialog"
+        />
+        <text-field
+          label="Quote char"
+          hint="The character used to quote fields."
+          v-model="quoteChar"
+          width="93px"
+          :disabled="disableDialog"
+          class="char-input"
+          id="quote-char"
+        />
+        <text-field
+          label="Escape char"
+          hint='The character used to escape the quote character within a field (e.g. "column with ""quotes"" in text").'
+          max-hint-width="242px"
+          v-model="escapeChar"
+          width="93px"
+          :disabled="disableDialog"
+          class="char-input"
+          id="escape-char"
+        />
+      </div>
+      <check-box
+        @click="header = $event"
+        :init="true"
+        label="Use first row as column headers"
+        :disabled="disableDialog"
+      />
+      <sql-table
+        v-if="previewData && (previewData.values.length > 0 || previewData.columns.length > 0)"
+        :data-set="previewData"
+        height="160"
+        class="preview-table"
+        :preview="true"
+      />
+      <div v-else class="no-data">No data</div>
+      <logs
+        class="import-csv-errors"
+        :messages="importCsvMessages"
+      />
+    </div>
+    <div class="dialog-buttons-container">
+      <button
+        class="secondary"
+        :disabled="disableDialog"
+        @click="cancelCsvImport"
+        id="csv-cancel"
+      >
+        Cancel
+      </button>
+      <button
+        v-show="!importCsvCompleted"
+        class="primary"
+        :disabled="disableDialog"
+        @click="loadFromCsv(file)"
+        id="csv-import"
+      >
+        Import
+      </button>
+      <button
+        v-show="importCsvCompleted"
+        class="primary"
+        :disabled="disableDialog"
+        @click="finish"
+        id="csv-finish"
+      >
+        Finish
+      </button>
+    </div>
+  </modal>
+</template>
+
+<script>
+import csv from './csv'
+import CloseIcon from '@/components/svg/close'
+import TextField from '@/components/TextField'
+import DelimiterSelector from './DelimiterSelector'
+import CheckBox from '@/components/CheckBox'
+import SqlTable from '@/components/SqlTable'
+import Logs from '@/components/Logs'
+import time from '@/lib/utils/time'
+import fIo from '@/lib/utils/fileIo'
+
+export default {
+  name: 'CsvImport',
+  components: {
+    CloseIcon,
+    TextField,
+    DelimiterSelector,
+    CheckBox,
+    SqlTable,
+    Logs
+  },
+  props: ['file', 'db', 'dialogName'],
+  data () {
+    return {
+      disableDialog: false,
+      tableName: '',
+      delimiter: '',
+      quoteChar: '"',
+      escapeChar: '"',
+      header: true,
+      importCsvCompleted: false,
+      importCsvMessages: [],
+      previewData: null,
+      addedTable: null,
+      tableNameError: ''
+    }
+  },
+  watch: {
+    quoteChar () {
+      this.previewCsv()
+    },
+
+    escapeChar () {
+      this.previewCsv()
+    },
+
+    header () {
+      this.previewCsv()
+    },
+    tableName: time.debounce(function () {
+      this.tableNameError = ''
+      if (!this.tableName) {
+        return
+      }
+      this.db.validateTableName(this.tableName)
+        .catch(err => {
+          this.tableNameError = err.message + '. Try another table name.'
+        })
+    }, 400)
+  },
+  methods: {
+    cancelCsvImport () {
+      if (!this.disableDialog) {
+        if (this.addedTable) {
+          this.db.execute(`DROP TABLE "${this.addedTable}"`)
+          this.db.refreshSchema()
+        }
+        this.$modal.hide(this.dialogName)
+        this.$emit('cancel')
+      }
+    },
+    reset () {
+      this.header = true
+      this.quoteChar = '"'
+      this.escapeChar = '"'
+      this.delimiter = ''
+      this.tableName = ''
+      this.disableDialog = false
+      this.importCsvCompleted = false
+      this.importCsvMessages = []
+      this.previewData = null
+      this.addedTable = null
+      this.tableNameError = ''
+    },
+    open () {
+      this.tableName = this.db.sanitizeTableName(fIo.getFileName(this.file))
+      this.$modal.show(this.dialogName)
+    },
+    async previewCsv () {
+      this.importCsvCompleted = false
+      const config = {
+        preview: 3,
+        quoteChar: this.quoteChar || '"',
+        escapeChar: this.escapeChar,
+        header: this.header,
+        delimiter: this.delimiter
+      }
+      try {
+        const start = new Date()
+        const parseResult = await csv.parse(this.file, config)
+        const end = new Date()
+        this.previewData = parseResult.data
+        this.delimiter = parseResult.delimiter
+
+        // In parseResult.messages we can get parse errors
+        this.importCsvMessages = parseResult.messages || []
+
+        if (!parseResult.hasErrors) {
+          this.importCsvMessages.push({
+            message: `Preview parsing is completed in ${time.getPeriod(start, end)}.`,
+            type: 'success'
+          })
+        }
+      } catch (err) {
+        this.importCsvMessages = [{
+          message: err,
+          type: 'error'
+        }]
+      }
+    },
+    async loadFromCsv (file) {
+      if (!this.tableName) {
+        this.tableNameError = "Table name can't be empty"
+        return
+      }
+
+      this.disableDialog = true
+      const config = {
+        quoteChar: this.quoteChar || '"',
+        escapeChar: this.escapeChar,
+        header: this.header,
+        delimiter: this.delimiter
+      }
+      const parseCsvMsg = {
+        message: 'Parsing CSV...',
+        type: 'info'
+      }
+      this.importCsvMessages.push(parseCsvMsg)
+      const parseCsvLoadingIndicator = setTimeout(() => { parseCsvMsg.type = 'loading' }, 1000)
+
+      const importMsg = {
+        message: 'Importing CSV into a SQLite database...',
+        type: 'info'
+      }
+      let importLoadingIndicator = null
+
+      const updateProgress = progress => {
+        this.$set(importMsg, 'progress', progress)
+      }
+      const progressCounterId = this.db.createProgressCounter(updateProgress)
+
+      try {
+        let start = new Date()
+        const parseResult = await csv.parse(this.file, config)
+        let end = new Date()
+
+        if (!parseResult.hasErrors) {
+          const rowCount = parseResult.data.values.length
+          let period = time.getPeriod(start, end)
+          parseCsvMsg.type = 'success'
+
+          if (parseResult.messages.length > 0) {
+            this.importCsvMessages = this.importCsvMessages.concat(parseResult.messages)
+            parseCsvMsg.message = `${rowCount} rows are parsed in ${period}.`
+          } else {
+            // Inform about csv parsing success
+            parseCsvMsg.message = `${rowCount} rows are parsed successfully in ${period}.`
+          }
+
+          // Loading indicator for csv parsing is not needed anymore
+          clearTimeout(parseCsvLoadingIndicator)
+
+          // Add info about import start
+          this.importCsvMessages.push(importMsg)
+
+          // Show import progress after 1 second
+          importLoadingIndicator = setTimeout(() => {
+            importMsg.type = 'loading'
+          }, 1000)
+
+          // Add table
+          start = new Date()
+          await this.db.addTableFromCsv(this.tableName, parseResult.data, progressCounterId)
+          end = new Date()
+
+          this.addedTable = this.tableName
+          // Inform about import success
+          period = time.getPeriod(start, end)
+          importMsg.message = `Importing CSV into a SQLite database is completed in ${period}.`
+          importMsg.type = 'success'
+
+          // Loading indicator for import is not needed anymore
+          clearTimeout(importLoadingIndicator)
+
+          this.importCsvCompleted = true
+        } else {
+          parseCsvMsg.message = 'Parsing ended with errors.'
+          parseCsvMsg.type = 'info'
+          this.importCsvMessages = this.importCsvMessages.concat(parseResult.messages)
+        }
+      } catch (err) {
+        if (parseCsvMsg.type === 'loading') {
+          parseCsvMsg.type = 'info'
+        }
+
+        if (importMsg.type === 'loading') {
+          importMsg.type = 'info'
+        }
+
+        this.importCsvMessages.push({
+          message: err,
+          type: 'error'
+        })
+      }
+
+      clearTimeout(parseCsvLoadingIndicator)
+      clearTimeout(importLoadingIndicator)
+      this.db.deleteProgressCounter(progressCounterId)
+      this.disableDialog = false
+    },
+    async finish () {
+      this.$modal.hide(this.dialogName)
+      const stmt = [
+        '/*',
+        ` * Your CSV file has been imported into ${this.addedTable} table.`,
+        ' * You can run this SQL query to make all CSV records available for charting.',
+        ' */',
+        `SELECT * FROM "${this.addedTable}"`
+      ].join('\n')
+      const tabId = await this.$store.dispatch('addTab', { query: stmt })
+      this.$store.commit('setCurrentTabId', tabId)
+      this.importCsvCompleted = false
+      this.$emit('finish')
+    }
+  }
+}
+</script>
+
+<style scoped>
+.dialog-body {
+  padding-bottom: 0;
+}
+
+.chars {
+  display: flex;
+  align-items: flex-end;
+  margin: 24px 0 20px;
+}
+.char-input {
+  margin-right: 44px;
+}
+.preview-table {
+  margin-top: 18px;
+}
+
+.import-csv-errors {
+  height: 136px;
+  margin-top: 8px;
+}
+.no-data {
+  margin-top: 32px;
+  background-color: white;
+  border-radius: 5px;
+  position: relative;
+  border: 1px solid var(--color-border-light);
+  box-sizing: border-box;
+  height: 147px;
+  font-size: 13px;
+  color: var(--color-text-base);
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+
+/* https://github.com/euvl/vue-js-modal/issues/623 */
+>>> .vm--modal {
+  max-width: 1152px;
+  margin: auto;
+  left: 0 !important;
+}
+</style>

src/components/DbUploader.vue

@@ -1,7 +1,7 @@
 <template>
-  <div class="db-uploader-container">
+  <div class="db-uploader-container" :style="{ width }">
     <change-db-icon v-if="type === 'small'" @click.native="browse"/>
-    <div v-if="['regular', 'illustrated'].includes(type)" class="drop-area-container">
+    <div v-if="type === 'illustrated'" class="drop-area-container">
       <div
         class="drop-area"
         @dragover.prevent="state = 'dragover'"
@@ -26,7 +26,8 @@
         ref="fileImg"
         :class="{
           'swing': state === 'dragover',
-          'fly': state === 'drop'
+          'fly': state === 'dropping',
+          'hidden': state === 'dropped'
         }"
         :src="require('@/assets/images/file.png')"
       />
@@ -41,103 +42,22 @@
     <div id="error" class="error"></div>
 
     <!--Parse csv dialog  -->
-    <modal name="parse" classes="dialog" height="auto" width="60%" :clickToClose="false">
-      <div class="dialog-header">
-        Import CSV
-        <close-icon @click="cancelCsvImport" :disabled="disableDialog"/>
-      </div>
-      <div class="dialog-body">
-        <div class="chars">
-          <delimiter-selector
-            v-model="delimiter"
-            width="210px"
-            class="char-input"
-            @input="previewCSV"
-            :disabled="disableDialog"
-          />
-          <text-field
-            label="Quote char"
-            hint="The character used to quote fields."
-            v-model="quoteChar"
-            width="93px"
-            :disabled="disableDialog"
-            class="char-input"
-            id="quote-char"
-          />
-          <text-field
-            label="Escape char"
-            hint='The character used to escape the quote character within a field (e.g. "column with ""quotes"" in text").'
-            max-hint-width="242px"
-            v-model="escapeChar"
-            width="93px"
-            :disabled="disableDialog"
-            class="char-input"
-            id="escape-char"
-          />
-        </div>
-        <check-box
-          @click="header = $event"
-          :init="true"
-          label="Use first row as column headers"
-          :disabled="disableDialog"
-        />
-        <sql-table
-          v-if="previewData"
-          :data-set="previewData"
-          height="160"
-          class="preview-table"
-          :preview="true"
-        />
-        <div v-if="!previewData" class="no-data">No data</div>
-        <logs
-          class="import-csv-errors"
-          :messages="importCsvMessages"
-        />
-      </div>
-      <div class="dialog-buttons-container">
-        <button
-          class="secondary"
-          :disabled="disableDialog"
-          @click="cancelCsvImport"
-          id="csv-cancel"
-        >
-          Cancel
-        </button>
-        <button
-          v-show="!importCsvCompleted"
-          class="primary"
-          :disabled="disableDialog"
-          @click="loadFromCsv(file)"
-          id="csv-import"
-        >
-          Import
-        </button>
-        <button
-          v-show="importCsvCompleted"
-          class="primary"
-          :disabled="disableDialog"
-          @click="finish"
-          id="csv-finish"
-        >
-          Finish
-        </button>
-      </div>
-    </modal>
+    <csv-import
+      ref="addCsv"
+      :file="file"
+      :db="newDb"
+      dialog-name="importFromCsv"
+      @cancel="cancelCsvImport"
+      @finish="finish"
+    />
   </div>
 </template>
 
 <script>
-import fu from '@/file.utils'
-import csv from '@/csv'
-import CloseIcon from '@/components/svg/close'
-import TextField from '@/components/TextField'
-import DelimiterSelector from '@/components/DelimiterSelector'
-import CheckBox from '@/components/CheckBox'
-import SqlTable from '@/components/SqlTable'
-import Logs from '@/components/Logs'
+import fIo from '@/lib/utils/fileIo'
 import ChangeDbIcon from '@/components/svg/changeDb'
-import time from '@/time'
-import database from '@/database'
+import database from '@/lib/database'
+import CsvImport from '@/components/CsvImport'
 
 export default {
   name: 'DbUploader',
@@ -145,35 +65,26 @@ export default {
     type: {
       type: String,
       required: false,
-      default: 'regular',
+      default: 'small',
       validator: (value) => {
-        return ['regular', 'illustrated', 'small'].includes(value)
+        return ['illustrated', 'small'].includes(value)
       }
+    },
+    width: {
+      type: String,
+      required: false,
+      default: 'unset'
     }
   },
   components: {
     ChangeDbIcon,
-    TextField,
-    DelimiterSelector,
-    CloseIcon,
-    CheckBox,
-    SqlTable,
-    Logs
+    CsvImport
   },
   data () {
     return {
       state: '',
       animationPromise: Promise.resolve(),
       file: null,
-      schema: null,
-      delimiter: '',
-      quoteChar: '"',
-      escapeChar: '"',
-      header: true,
-      previewData: null,
-      importCsvMessages: [],
-      disableDialog: false,
-      importCsvCompleted: false,
       newDb: null
     }
   },
@@ -182,205 +93,50 @@ export default {
       this.animationPromise = new Promise((resolve) => {
         this.$refs.fileImg.addEventListener('animationend', event => {
           if (event.animationName.startsWith('fly')) {
+            this.state = 'dropped'
             resolve()
           }
         })
       })
     }
   },
-  watch: {
-    quoteChar () {
-      this.previewCSV()
-    },
-
-    escapeChar () {
-      this.previewCSV()
-    },
-
-    header () {
-      this.previewCSV()
-    }
-  },
   methods: {
     cancelCsvImport () {
-      if (!this.disableDialog) {
-        this.$modal.hide('parse')
-        if (this.newDb) {
-          this.newDb.shutDown()
-          this.newDb = null
-        }
+      if (this.newDb) {
+        this.newDb.shutDown()
+        this.newDb = null
       }
     },
 
     async finish () {
       this.$store.commit('setDb', this.newDb)
-      this.$store.commit('saveSchema', this.schema)
-      if (this.importCsvCompleted) {
-        this.$modal.hide('parse')
-        const tabId = await this.$store.dispatch('addTab', { query: 'select * from csv_import' })
-        this.$store.commit('setCurrentTabId', tabId)
-      }
       if (this.$route.path !== '/editor') {
         this.$router.push('/editor')
       }
     },
 
-    async previewCSV () {
-      this.importCsvCompleted = false
-      const config = {
-        preview: 3,
-        quoteChar: this.quoteChar || '"',
-        escapeChar: this.escapeChar,
-        header: this.header,
-        delimiter: this.delimiter
-      }
-      try {
-        const start = new Date()
-        const parseResult = await csv.parse(this.file, config)
-        const end = new Date()
-        this.previewData = parseResult.data
-        this.delimiter = parseResult.delimiter
-
-        // In parseResult.messages we can get parse errors
-        this.importCsvMessages = parseResult.messages || []
-
-        if (!parseResult.hasErrors) {
-          this.importCsvMessages.push({
-            message: `Preview parsing is completed in ${time.getPeriod(start, end)}.`,
-            type: 'success'
-          })
-        }
-      } catch (err) {
-        this.importCsvMessages = [{
-          message: err,
-          type: 'error'
-        }]
-      }
-    },
-
     loadDb (file) {
-      this.newDb = database.getNewDatabase()
       return Promise.all([this.newDb.loadDb(file), this.animationPromise])
-        .then(([schema]) => {
-          this.schema = schema
-          this.finish()
-        })
-    },
-
-    async loadFromCsv (file) {
-      this.disableDialog = true
-      const config = {
-        quoteChar: this.quoteChar || '"',
-        escapeChar: this.escapeChar,
-        header: this.header,
-        delimiter: this.delimiter
-      }
-      const parseCsvMsg = {
-        message: 'Parsing CSV...',
-        type: 'info'
-      }
-      this.importCsvMessages.push(parseCsvMsg)
-      const parseCsvLoadingIndicator = setTimeout(() => { parseCsvMsg.type = 'loading' }, 1000)
-
-      const importMsg = {
-        message: 'Importing CSV into a SQLite database...',
-        type: 'info'
-      }
-      let importLoadingIndicator = null
-
-      const updateProgress = progress => {
-        this.$set(importMsg, 'progress', progress)
-      }
-      this.newDb = database.getNewDatabase()
-      const progressCounterId = this.newDb.createProgressCounter(updateProgress)
-
-      try {
-        let start = new Date()
-        const parseResult = await csv.parse(this.file, config)
-        let end = new Date()
-
-        if (!parseResult.hasErrors) {
-          const rowCount = parseResult.data.values.length
-          let period = time.getPeriod(start, end)
-          parseCsvMsg.type = 'success'
-
-          if (parseResult.messages.length > 0) {
-            this.importCsvMessages = this.importCsvMessages.concat(parseResult.messages)
-            parseCsvMsg.message = `${rowCount} rows are parsed in ${period}.`
-          } else {
-            // Inform about csv parsing success
-            parseCsvMsg.message = `${rowCount} rows are parsed successfully in ${period}.`
-          }
-
-          // Loading indicator for csv parsing is not needed anymore
-          clearTimeout(parseCsvLoadingIndicator)
-
-          // Add info about import start
-          this.importCsvMessages.push(importMsg)
-
-          // Show import progress after 1 second
-          importLoadingIndicator = setTimeout(() => {
-            importMsg.type = 'loading'
-          }, 1000)
-
-          // Create db with csv table and get schema
-          start = new Date()
-          this.schema = await this.newDb.createDb(file.name, parseResult.data, progressCounterId)
-          end = new Date()
-
-          // Inform about import success
-          period = time.getPeriod(start, end)
-          importMsg.message = `Importing CSV into a SQLite database is completed in ${period}.`
-          importMsg.type = 'success'
-
-          // Loading indicator for import is not needed anymore
-          clearTimeout(importLoadingIndicator)
-
-          this.importCsvCompleted = true
-        } else {
-          parseCsvMsg.message = 'Parsing ended with errors.'
-          parseCsvMsg.type = 'info'
-          this.importCsvMessages = this.importCsvMessages.concat(parseResult.messages)
-        }
-      } catch (err) {
-        if (parseCsvMsg.type === 'loading') {
-          parseCsvMsg.type = 'info'
-        }
-
-        if (importMsg.type === 'loading') {
-          importMsg.type = 'info'
-        }
-
-        this.importCsvMessages.push({
-          message: err,
-          type: 'error'
-        })
-      }
-
-      clearTimeout(parseCsvLoadingIndicator)
-      clearTimeout(importLoadingIndicator)
-      this.newDb.deleteProgressCounter(progressCounterId)
-      this.disableDialog = false
+        .then(this.finish)
     },
 
     async checkFile (file) {
-      this.state = 'drop'
-      if (file.type === 'text/csv') {
-        this.file = file
-        this.header = true
-        this.quoteChar = '"'
-        this.escapeChar = '"'
-        this.delimiter = ''
-        return Promise.all([this.previewCSV(), this.animationPromise])
-          .then(() => {
-            this.$modal.show('parse')
-          })
-      } else {
+      this.state = 'dropping'
+      this.newDb = database.getNewDatabase()
+
+      if (fIo.isDatabase(file)) {
         this.loadDb(file)
+      } else {
+        this.file = file
+        await this.$nextTick()
+        const csvImport = this.$refs.addCsv
+        csvImport.reset()
+        return Promise.all([csvImport.previewCsv(), this.animationPromise])
+          .then(csvImport.open)
       }
     },
     browse () {
-      fu.getFileFromUser('.db,.sqlite,.sqlite3,.csv')
+      fIo.getFileFromUser('.db,.sqlite,.sqlite3,.csv')
         .then(this.checkFile)
     },
 
@@ -416,6 +172,7 @@ export default {
   align-items: center;
   justify-content: center;
   height: 100%;
+  cursor: pointer;
 }
 
 #img-container {
@@ -487,42 +244,16 @@ export default {
 #file-img.fly {
   animation: fly ease-in-out 1s 1 normal;
   transform-origin: center center;
-  top: 183px;
-  left: 225px;
-  transition: top 1s ease-in-out, left 1s ease-in-out;
 }
 @keyframes fly {
-  100% { transform: rotate(360deg) scale(0.5); }
-}
-/* Parse CSV dialog */
-.chars {
-  display: flex;
-  align-items: flex-end;
-  margin-bottom: 20px;
-}
-.char-input {
-  margin-right: 44px;
-}
-.preview-table {
-  margin-top: 32px;
+  100% {
+    transform: rotate(360deg) scale(0.5);
+    top: 183px;
+    left: 225px;
+  }
 }
 
-.import-csv-errors {
-  height: 160px;
-  margin-top: 32px;
-}
-.no-data {
-  margin-top: 32px;
-  background-color: white;
-  border-radius: 5px;
-  position: relative;
-  border: 1px solid var(--color-border-light);
-  box-sizing: border-box;
-  height: 160px;
-  font-size: 13px;
-  color: var(--color-text-base);
-  display: flex;
-  justify-content: center;
-  align-items: center;
+#file-img.hidden {
+  display: none;
 }
 </style>

src/components/LoadingIndicator.vue

@@ -1,17 +1,18 @@
 <template>
-  <svg :class="['svg-container', animationClass ]" height="20" width="20" viewBox="0 0 20 20">
+  <svg :class="animationClass" :height="size" :width="size" :viewBox="`0 0 ${size} ${size}`">
     <circle
       class="loader-svg bg"
-      cx="10"
-      cy="10"
-      r="8"
+      :style="{ strokeWidth }"
+      :cx="size / 2"
+      :cy="size / 2"
+      :r="radius"
     />
     <circle
       class="loader-svg front"
-      :style="{ strokeDasharray: circleProgress }"
-      cx="10"
-      cy="10"
-      r="8"
+      :style="{ strokeDasharray: circleProgress, strokeDashoffset: offset, strokeWidth }"
+      :cx="size / 2"
+      :cy="size / 2"
+      :r="radius"
     />
   </svg>
 </template>
@@ -19,15 +20,35 @@
 <script>
 export default {
   name: 'LoadingIndicator',
-  props: ['progress'],
+  props: {
+    progress: {
+      type: Number,
+      required: false
+    },
+    size: {
+      type: Number,
+      required: false,
+      default: 20
+    }
+  },
   computed: {
     circleProgress () {
-      const dash = (50.24 * this.progress) / 100
-      const space = 50.24 - dash
-      return `${dash}, ${space}`
+      const circle = this.radius * 3.14 * 2
+      const dash = this.progress ? (circle * this.progress) / 100 : circle * 1 / 3
+      const space = circle - dash
+      return `${dash}px, ${space}px`
     },
     animationClass () {
       return this.progress === undefined ? 'loading' : 'progress'
+    },
+    radius () {
+      return this.size / 2 - this.strokeWidth
+    },
+    offset () {
+      return this.radius * 3.14 / 2
+    },
+    strokeWidth () {
+      return this.size / 10
     }
   }
 }
@@ -38,7 +59,6 @@ export default {
   position: absolute;
   left: 0; right: 0; top: 0; bottom: 0;
   fill: none;
-  stroke-width: 2px;
   stroke-linecap: round;
   stroke: var(--color-accent);
 }
@@ -48,27 +68,30 @@ export default {
 }
 
 .loading .loader-svg.front {
-  stroke-dasharray: 40.24;
+  will-change: transform;
   animation: fill-animation-loading 1s cubic-bezier(1,1,1,1) 0s infinite;
+  transform-origin: center;
 }
 
+/*
+  We can't change anything in loading animation except transform, opacity and filter. Because in
+  our case the Main Thread can be busy and animation will be frozen (e. g. getting a result set
+  from the web-worker after query execution).
+  But transform, opacity and filter trigger changes only in the Composite Layer stage in rendering
+  waterfall. Hence they can be processed only with Compositor Thread while the Main Thread
+  processes something else.
+  https://www.viget.com/articles/animation-performance-101-browser-under-the-hood/
+*/
 @keyframes fill-animation-loading {
   0% {
-    stroke-dasharray: 10 40.24;
-    stroke-dashoffset: 0;
-  }
-  50% {
-    stroke-dasharray: 25.12;
-    stroke-dashoffset: 25.12;
+    transform: rotate(0deg);
   }
   100% {
-    stroke-dasharray: 10 40.24 ;
-    stroke-dashoffset: 50.24;
+    transform: rotate(360deg);
   }
 }
 
 .progress .loader-svg.front {
-  stroke-dashoffset: 12.56;
   transition: stroke-dasharray 0.2s;
 }
 

src/components/Logs.vue

@@ -63,14 +63,16 @@ export default {
   border-radius: 5px;
   border: 1px solid var(--color-border-light);
   box-sizing: border-box;
-  overflow-y: scroll;
+  overflow-y: auto;
+  color: var(--color-text-base);
 }
 .msg {
-  padding: 16px 7px;
+  padding: 12px 7px;
   border-bottom: 1px solid var(--color-border-light);
   display: flex;
   align-items: flex-start;
   font-family: monospace;
+  font-size: 13px;
 }
 
 .msg:last-child {

src/components/Splitpanes/index.vue

@@ -65,7 +65,7 @@
 </template>
 
 <script>
-import splitter from '@/splitter'
+import splitter from './splitter'
 
 export default {
   name: 'Splitpanes',

src/components/SqlTable/index.vue

@@ -41,6 +41,7 @@
       <div class="table-footer-count">
         {{ dataSet.values.length}} {{dataSet.values.length === 1 ? 'row' : 'rows'}} retrieved
         <span v-if="preview">for preview</span>
+        <span v-if="time">in {{ time }}</span>
       </div>
       <pager v-show="pageCount > 1" :page-count="pageCount" v-model="currentPage" />
     </div>
@@ -48,12 +49,12 @@
 </template>
 
 <script>
-import Pager from '@/components/Pager'
+import Pager from './Pager'
 
 export default {
   name: 'SqlTable',
   components: { Pager },
-  props: ['dataSet', 'height', 'preview'],
+  props: ['dataSet', 'time', 'height', 'preview'],
   data () {
     return {
       header: null,

src/components/TextField.vue

@@ -1,6 +1,6 @@
 <template>
   <div>
-    <div :class="['text-field-label', { error: errorMsg }, {'disabled': disabled}]">
+    <div v-if="label" :class="['text-field-label', { error: errorMsg }, {'disabled': disabled}]">
       {{ label }}
       <hint-icon class="hint" v-if="hint" :hint="hint" :max-width="maxHintWidth || '149px'"/>
     </div>
@@ -11,7 +11,7 @@
       :style="{ width: width }"
       :value="value"
       :disabled="disabled"
-      @input="$emit('input',  $event.target.value)"
+      @input="$emit('input', $event.target.value)"
     />
     <div v-show="errorMsg" class="text-field-error">{{ errorMsg }}</div>
   </div>
@@ -87,4 +87,7 @@ input.error {
   margin-top: 2px;
   position: absolute;
 }
+.text-field-error:first-letter {
+  text-transform: uppercase;
+}
 </style>

src/components/svg/addTable.vue

@@ -0,0 +1,61 @@
+<template>
+  <span>
+    <svg
+      class="icon"
+      width="18"
+      height="18"
+      viewBox="0 0 18 18"
+      fill="none"
+      @click.stop="$emit('click')"
+      @mouseover="showTooltip"
+      @mouseout="hideTooltip"
+    >
+      <g clip-path="url(#clip0)">
+        <path
+          fill-rule="evenodd"
+          clip-rule="evenodd"
+          d="
+            M13.6573 1.5H2.59985C1.77485 1.5 1.09985 2.175 1.09985 3V13.6649C1.09985 14.4899
+            1.77485 15.1649 2.59985
+            15.1649H9.84V13.6649H8.87866V9.08244H13.6573V9.83777H15.1573V3C15.1573
+            2.17 14.4873 1.5 13.6573 1.5ZM13.6573
+            7.58244V3H8.87866V7.58244H13.6573ZM7.37866 3H2.59985V7.58244H7.37866V3ZM2.59985
+            9.08244V13.6649H7.37866V9.08244H2.59985ZM13.1702
+            10.8434H15.6702V13.1717H18.0001V15.6717H15.6702V18H13.1702V15.6717H10.8401V13.1717H13.1702V10.8434Z
+          "
+          fill="#A2B1C6"
+        />
+      </g>
+      <defs>
+        <clipPath id="clip0">
+          <rect width="18" height="18" fill="white"/>
+        </clipPath>
+      </defs>
+    </svg>
+    <span class="icon-tooltip" :style="tooltipStyle">
+      Add new table from CSV
+    </span>
+  </span>
+</template>
+
+<script>
+import tooltipMixin from '@/tooltipMixin'
+
+export default {
+  name: 'AddTableIcon',
+  mixins: [tooltipMixin],
+  props: ['tooltip']
+}
+</script>
+
+<style scoped>
+.icon {
+  display: block;
+  margin: 0;
+  cursor: pointer;
+}
+
+.icon:hover path {
+  fill: var(--color-accent);
+}
+</style>

src/components/svg/changeDb.vue

@@ -16,13 +16,13 @@
     />
   </svg>
   <span class="icon-tooltip" :style="tooltipStyle">
-    Change database
+    Load another database or CSV
   </span>
 </div>
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'changeDbIcon',

src/components/svg/export.vue

@@ -15,26 +15,28 @@
         d="M10.5 1.5H4.5C3.675 1.5 3 2.175 3 3V15C3 15.825 3.675 16.5 4.5 16.5H13.5C14.325 16.5 15 15.825 15 15V6L10.5 1.5ZM13.5 15H4.5V3H9.75V6.75H13.5V15ZM12 8.25V13.575L10.425 12L8.325 14.1L6.225 12L8.325 9.9L6.675 8.25H12Z"
         fill="#A2B1C6"
       />
-  </svg>
-  <span class="icon-tooltip" :style="tooltipStyle">
-    Export query to file
-  </span>
+    </svg>
+    <span class="icon-tooltip" :style="tooltipStyle">
+      {{ tooltip }}
+    </span>
   </span>
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'ExportIcon',
-  mixins: [tooltipMixin]
+  mixins: [tooltipMixin],
+  props: ['tooltip']
 }
 </script>
 
 <style scoped>
 .icon {
-  vertical-align: middle;
+  display: block;
   margin: 0 12px;
+  cursor: pointer;
 }
 
 .icon:hover path {

src/components/svg/hint.vue

@@ -20,7 +20,7 @@
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'HintIcon',

src/db.utils.js

@@ -1,44 +0,0 @@
-export default {
-  * generateChunks (arr, size) {
-    const count = Math.ceil(arr.length / size)
-
-    for (let i = 0; i <= count - 1; i++) {
-      const start = size * i
-      const end = start + size
-      yield arr.slice(start, end)
-    }
-  },
-
-  getInsertStmt (columns) {
-    const colList = `"${columns.join('", "')}"`
-    const params = columns.map(() => '?').join(', ')
-    return `INSERT INTO csv_import (${colList}) VALUES (${params});`
-  },
-
-  getCreateStatement (columns, values) {
-    let result = 'CREATE table csv_import('
-    columns.forEach((col, index) => {
-    // Get the first row of values to determine types
-      const value = values[0][index]
-      let type = ''
-      switch (typeof value) {
-        case 'number': {
-          type = 'REAL'
-          break
-        }
-        case 'boolean': {
-          type = 'INTEGER'
-          break
-        }
-        case 'string': {
-          type = 'TEXT'
-          break
-        }
-        default: type = 'TEXT'
-      }
-      result += `"${col}" ${type}, `
-    })
-    result = result.replace(/,\s$/, ');')
-    return result
-  }
-}

src/lib/database/_sql.js

@@ -1,5 +1,5 @@
 import initSqlJs from 'sql.js/dist/sql-wasm.js'
-import dbUtils from '@/db.utils'
+import dbUtils from './_statements'
 
 let SQL = null
 const sqlModuleReady = initSqlJs().then(sqlModule => { SQL = sqlModule })
@@ -39,13 +39,15 @@ export default class Sql {
     return this.db.exec(sql, params)
   }
 
-  import (columns, values, progressCounterId, progressCallback, chunkSize = 1500) {
-    this.createDb()
-    this.db.exec(dbUtils.getCreateStatement(columns, values))
+  import (tabName, columns, values, progressCounterId, progressCallback, chunkSize = 1500) {
+    if (this.db === null) {
+      this.createDb()
+    }
+    this.db.exec(dbUtils.getCreateStatement(tabName, columns, values))
     const chunks = dbUtils.generateChunks(values, chunkSize)
     const chunksAmount = Math.ceil(values.length / chunkSize)
     let count = 0
-    const insertStr = dbUtils.getInsertStmt(columns)
+    const insertStr = dbUtils.getInsertStmt(tabName, columns)
     const insertStmt = this.db.prepare(insertStr)
 
     progressCallback({ progress: 0, id: progressCounterId })

src/lib/database/_statements.js

@@ -0,0 +1,90 @@
+import sqliteParser from 'sqlite-parser'
+
+export default {
+  * generateChunks (arr, size) {
+    const count = Math.ceil(arr.length / size)
+
+    for (let i = 0; i <= count - 1; i++) {
+      const start = size * i
+      const end = start + size
+      yield arr.slice(start, end)
+    }
+  },
+
+  getInsertStmt (tabName, columns) {
+    const colList = `"${columns.join('", "')}"`
+    const params = columns.map(() => '?').join(', ')
+    return `INSERT INTO "${tabName}" (${colList}) VALUES (${params});`
+  },
+
+  getCreateStatement (tabName, columns, values) {
+    let result = `CREATE table "${tabName}"(`
+    columns.forEach((col, index) => {
+    // Get the first row of values to determine types
+      const value = values[0][index]
+      let type = ''
+      switch (typeof value) {
+        case 'number': {
+          type = 'REAL'
+          break
+        }
+        case 'boolean': {
+          type = 'INTEGER'
+          break
+        }
+        case 'string': {
+          type = 'TEXT'
+          break
+        }
+        default: type = 'TEXT'
+      }
+      result += `"${col}" ${type}, `
+    })
+    result = result.replace(/,\s$/, ');')
+    return result
+  },
+
+  getAst (sql) {
+    // There is a bug is sqlite-parser
+    // It throws an error if tokenizer has an arguments:
+    // https://github.com/codeschool/sqlite-parser/issues/59
+    const fixedSql = sql
+      .replace(/(tokenize=[^,]+)"tokenchars=.+?"/, '$1')
+      .replace(/(tokenize=[^,]+)"remove_diacritics=.+?"/, '$1')
+      .replace(/(tokenize=[^,]+)"separators=.+?"/, '$1')
+      .replace(/tokenize=.+?(,|\))/, 'tokenize=unicode61$1')
+
+    return sqliteParser(fixedSql)
+  },
+
+  /*
+   * Return an array of columns with name and type. E.g.:
+   * [
+   *   { name: 'id',    type: 'INTEGER' },
+   *   { name: 'title', type: 'NVARCHAR(30)' },
+   * ]
+  */
+  getColumns (sql) {
+    const columns = []
+    const ast = this.getAst(sql)
+
+    const columnDefinition = ast.statement[0].format === 'table'
+      ? ast.statement[0].definition
+      : ast.statement[0].result.args.expression // virtual table
+
+    columnDefinition.forEach(item => {
+      if (item.variant === 'column' && ['identifier', 'definition'].includes(item.type)) {
+        let type = item.datatype ? item.datatype.variant : 'N/A'
+        if (item.datatype && item.datatype.args) {
+          type = type + '(' + item.datatype.args.expression[0].value
+          if (item.datatype.args.expression.length === 2) {
+            type = type + ', ' + item.datatype.args.expression[1].value
+          }
+          type = type + ')'
+        }
+        columns.push({ name: item.name, type: type })
+      }
+    })
+    return columns
+  }
+}

src/lib/database/_worker.js

@@ -1,5 +1,5 @@
 import registerPromiseWorker from 'promise-worker/register'
-import Sql from '@/sql'
+import Sql from './_sql'
 
 const sqlReady = Sql.build()
 
@@ -8,10 +8,18 @@ function processMsg (sql) {
   switch (data && data.action) {
     case 'open':
       return sql.open(data.buffer)
+    case 'reopen':
+      return sql.open(sql.export())
     case 'exec':
       return sql.exec(data.sql, data.params)
     case 'import':
-      return sql.import(data.columns, data.values, data.progressCounterId, postMessage)
+      return sql.import(
+        data.tabName,
+        data.columns,
+        data.values,
+        data.progressCounterId,
+        postMessage
+      )
     case 'export':
       return sql.export()
     case 'close':
@@ -23,7 +31,7 @@ function processMsg (sql) {
 
 function onError (error) {
   return {
-    error
+    error: error.message
   }
 }
 

src/lib/database/index.js

@@ -1,8 +1,8 @@
-import sqliteParser from 'sqlite-parser'
-import fu from '@/file.utils'
+import stms from './_statements'
+import fu from '@/lib/utils/fileIo'
 // We can import workers like so because of worker-loader:
 // https://webpack.js.org/loaders/worker-loader/
-import Worker from '@/db.worker.js'
+import Worker from './_worker.js'
 
 // Use promise-worker in order to turn worker into the promise based one:
 // https://github.com/nolanlawson/promise-worker
@@ -20,6 +20,8 @@ export default {
 let progressCounterIds = 0
 class Database {
   constructor (worker) {
+    this.dbName = null
+    this.schema = null
     this.worker = worker
     this.pw = new PromiseWorker(worker)
 
@@ -50,33 +52,35 @@ class Database {
     delete this.importProgresses[id]
   }
 
-  async createDb (name, data, progressCounterId) {
+  async addTableFromCsv (tabName, data, progressCounterId) {
     const result = await this.pw.postMessage({
       action: 'import',
       columns: data.columns,
       values: data.values,
-      progressCounterId
+      progressCounterId,
+      tabName
     })
 
     if (result.error) {
-      throw result.error
+      throw new Error(result.error)
     }
-
-    return await this.getSchema(name)
+    this.dbName = this.dbName || 'database'
+    this.refreshSchema()
   }
 
   async loadDb (file) {
-    const fileContent = await fu.readAsArrayBuffer(file)
+    const fileContent = file ? await fu.readAsArrayBuffer(file) : null
     const res = await this.pw.postMessage({ action: 'open', buffer: fileContent })
 
     if (res.error) {
-      throw res.error
+      throw new Error(res.error)
     }
 
-    return this.getSchema(file.name)
+    this.dbName = file ? fu.getFileName(file) : 'database'
+    this.refreshSchema()
   }
 
-  async getSchema (name) {
+  async refreshSchema () {
     const getSchemaSql = `
       SELECT name, sql
       FROM sqlite_master
@@ -85,71 +89,59 @@ class Database {
     const result = await this.execute(getSchemaSql)
     // Parse DDL statements to get column names and types
     const parsedSchema = []
-    result.values.forEach(item => {
-      parsedSchema.push({
-        name: item[0],
-        columns: getColumns(item[1])
+    if (result && result.values) {
+      result.values.forEach(item => {
+        parsedSchema.push({
+          name: item[0],
+          columns: stms.getColumns(item[1])
+        })
       })
-    })
-
-    // Return db name and schema
-    return {
-      dbName: name,
-      schema: parsedSchema
     }
+
+    // Refresh schema
+    this.schema = parsedSchema
   }
 
   async execute (commands) {
+    await this.pw.postMessage({ action: 'reopen' })
     const results = await this.pw.postMessage({ action: 'exec', sql: commands })
 
     if (results.error) {
-      throw results.error
+      throw new Error(results.error)
     }
     // if it was more than one select - take only the last one
     return results[results.length - 1]
   }
-}
 
-function getAst (sql) {
-  // There is a bug is sqlite-parser
-  // It throws an error if tokenizer has an arguments:
-  // https://github.com/codeschool/sqlite-parser/issues/59
-  const fixedSql = sql
-    .replace(/(?<=tokenize=.+)"tokenchars=.+"/, '')
-    .replace(/(?<=tokenize=.+)"remove_diacritics=.+"/, '')
-    .replace(/(?<=tokenize=.+)"separators=.+"/, '')
-    .replace(/tokenize=.+(?=(,|\)))/, 'tokenize=unicode61')
+  async export (fileName) {
+    const data = await this.pw.postMessage({ action: 'export' })
 
-  return sqliteParser(fixedSql)
-}
-
-/*
- * Return an array of columns with name and type. E.g.:
- * [
- *   { name: 'id',    type: 'INTEGER' },
- *   { name: 'title', type: 'NVARCHAR(30)' },
- * ]
-*/
-function getColumns (sql) {
-  const columns = []
-  const ast = getAst(sql)
-
-  const columnDefinition = ast.statement[0].format === 'table'
-    ? ast.statement[0].definition
-    : ast.statement[0].result.args.expression // virtual table
-
-  columnDefinition.forEach(item => {
-    if (item.variant === 'column' && ['identifier', 'definition'].includes(item.type)) {
-      let type = item.datatype ? item.datatype.variant : 'N/A'
-      if (item.datatype && item.datatype.args) {
-        type = type + '(' + item.datatype.args.expression[0].value
-        if (item.datatype.args.expression.length === 2) {
-          type = type + ', ' + item.datatype.args.expression[1].value
-        }
-        type = type + ')'
-      }
-      columns.push({ name: item.name, type: type })
+    if (data.error) {
+      throw new Error(data.error)
     }
-  })
-  return columns
+    fu.exportToFile(data, fileName)
+  }
+
+  async validateTableName (name) {
+    if (name.startsWith('sqlite_')) {
+      throw new Error("Table name can't start with sqlite_")
+    }
+
+    if (/[^\w]/.test(name)) {
+      throw new Error('Table name can contain only letters, digits and underscores')
+    }
+
+    if (/^(\d)/.test(name)) {
+      throw new Error("Table name can't start with a digit")
+    }
+
+    await this.execute(`BEGIN; CREATE TABLE "${name}"(id); ROLLBACK;`)
+  }
+
+  sanitizeTableName (tabName) {
+    return tabName
+      .replace(/[^\w]/g, '_') // replace everything that is not letter, digit or _  with _
+      .replace(/^(\d)/, '_$1') // add _ at beginning if starts with digit
+      .replace(/_{2,}/g, '_') // replace multiple _ with one _
+  }
 }

src/lib/storedQueries.js

@@ -1,5 +1,5 @@
 import { nanoid } from 'nanoid'
-import fu from '@/file.utils'
+import fu from '@/lib/utils/fileIo'
 
 export default {
   getStoredQueries () {

src/lib/utils/fileIo.js

@@ -1,4 +1,15 @@
 export default {
+  isDatabase (file) {
+    const dbTypes = ['application/vnd.sqlite3', 'application/x-sqlite3']
+    return file.type
+      ? dbTypes.includes(file.type)
+      : /\.(db|sqlite(3)?)+$/.test(file.name)
+  },
+
+  getFileName (file) {
+    return file.name.replace(/\.[^.]+$/, '')
+  },
+
   exportToFile (str, fileName, type = 'octet/stream') {
     // Create downloader
     const downloader = document.createElement('a')

src/lib/utils/time.js

@@ -0,0 +1,15 @@
+export default {
+  getPeriod (start, end) {
+    const diff = end.getTime() - start.getTime()
+    const seconds = diff / 1000
+    return seconds.toFixed(3) + 's'
+  },
+
+  debounce (func, ms) {
+    let timeout
+    return function () {
+      clearTimeout(timeout)
+      timeout = setTimeout(() => func.apply(this, arguments), ms)
+    }
+  }
+}

src/main.js

@@ -1,7 +1,7 @@
 import Vue from 'vue'
-import App from './App.vue'
-import router from './router'
-import store from './store'
+import App from '@/App.vue'
+import router from '@/router'
+import store from '@/store'
 import { VuePlugin } from 'vuera'
 import VModal from 'vue-js-modal'
 
@@ -12,6 +12,10 @@ import '@/assets/styles/dialogs.css'
 import '@/assets/styles/tooltips.css'
 import '@/assets/styles/messages.css'
 
+if (!['localhost', '127.0.0.1'].includes(location.hostname)) {
+  import('./registerServiceWorker') // eslint-disable-line no-unused-expressions
+}
+
 Vue.use(VuePlugin)
 Vue.use(VModal)
 

src/registerServiceWorker.js

@@ -0,0 +1,44 @@
+let refresh = false
+
+function invokeServiceWorkerUpdateFlow (registration) {
+  const agree = confirm('New version of the app is available. Refresh now?')
+  if (agree) {
+    if (registration.waiting) {
+      // let waiting Service Worker know it should became active
+      refresh = true
+      registration.waiting.postMessage({ type: 'SKIP_WAITING' })
+    }
+  }
+}
+
+if ('serviceWorker' in navigator) {
+  window.addEventListener('load', async () => {
+    const registration = await navigator.serviceWorker.register('service-worker.js')
+    // ensure the case when the updatefound event was missed is also handled
+    // by re-invoking the prompt when there's a waiting Service Worker
+    if (registration.waiting) {
+      invokeServiceWorkerUpdateFlow(registration)
+    }
+
+    // detect Service Worker update available and wait for it to become installed
+    registration.addEventListener('updatefound', () => {
+      const newRegestration = registration.installing
+      if (newRegestration) {
+        // wait until the new Service worker is actually installed (ready to take over)
+        newRegestration.addEventListener('statechange', () => {
+          if (registration.waiting && navigator.serviceWorker.controller) {
+            invokeServiceWorkerUpdateFlow(registration)
+          }
+        })
+      }
+    })
+
+    // detect controller change and refresh the page
+    navigator.serviceWorker.addEventListener('controllerchange', () => {
+      if (refresh) {
+        window.location.reload()
+        refresh = false
+      }
+    })
+  })
+}

src/router.js

@@ -0,0 +1,50 @@
+import Vue from 'vue'
+import VueRouter from 'vue-router'
+import Editor from '@/views/Main/Editor'
+import MyQueries from '@/views/Main/MyQueries'
+import Welcome from '@/views/Welcome'
+import Main from '@/views/Main'
+import store from '@/store'
+import database from '@/lib/database'
+
+Vue.use(VueRouter)
+
+const routes = [
+  {
+    path: '/',
+    name: 'Welcome',
+    component: Welcome
+  },
+  {
+    path: '/',
+    name: 'Main',
+    component: Main,
+    children: [
+      {
+        path: '/editor',
+        name: 'Editor',
+        component: Editor
+      },
+      {
+        path: '/my-queries',
+        name: 'MyQueries',
+        component: MyQueries
+      }
+    ]
+  }
+]
+
+const router = new VueRouter({
+  routes
+})
+
+router.beforeEach(async (to, from, next) => {
+  if (!store.state.db) {
+    const newDb = database.getNewDatabase()
+    await newDb.loadDb()
+    store.commit('setDb', newDb)
+  }
+  next()
+})
+
+export default router

src/router/index.js

@@ -1,39 +0,0 @@
-import Vue from 'vue'
-import VueRouter from 'vue-router'
-import Editor from '@/views/Editor'
-import MyQueries from '@/views/MyQueries'
-import Home from '@/views/Home'
-import MainView from '@/views/MainView'
-
-Vue.use(VueRouter)
-
-const routes = [
-  {
-    path: '/',
-    name: 'Welcome',
-    component: Home
-  },
-  {
-    path: '/',
-    name: 'MainView',
-    component: MainView,
-    children: [
-      {
-        path: '/editor',
-        name: 'Editor',
-        component: Editor
-      },
-      {
-        path: '/my-queries',
-        name: 'MyQueries',
-        component: MyQueries
-      }
-    ]
-  }
-]
-
-const router = new VueRouter({
-  routes
-})
-
-export default router

src/store/actions.js

@@ -0,0 +1,30 @@
+import { nanoid } from 'nanoid'
+
+export default {
+  async addTab ({ state }, data) {
+    const tab = data ? JSON.parse(JSON.stringify(data)) : {}
+    // If no data then create a new blank one...
+    // No data.id means to create new tab, but not blank,
+    // e.g. with 'select * from csv_import' query after csv import
+    if (!data || !data.id) {
+      tab.id = nanoid()
+      tab.name = null
+      tab.tempName = state.untitledLastIndex
+        ? `Untitled ${state.untitledLastIndex}`
+        : 'Untitled'
+      tab.isUnsaved = true
+    } else {
+      tab.isUnsaved = false
+    }
+
+    // add new tab only if was not already opened
+    if (!state.tabs.some(openedTab => openedTab.id === tab.id)) {
+      state.tabs.push(tab)
+      if (!tab.name) {
+        state.untitledLastIndex += 1
+      }
+    }
+
+    return tab.id
+  }
+}

src/store/index.js

@@ -1,112 +1,11 @@
 import Vue from 'vue'
 import Vuex from 'vuex'
-import { nanoid } from 'nanoid'
+import state from '@/store/state'
+import mutations from '@/store/mutations'
+import actions from '@/store/actions'
 
 Vue.use(Vuex)
 
-export const state = {
-  schema: null,
-  dbFile: null,
-  dbName: null,
-  tabs: [],
-  currentTab: null,
-  currentTabId: null,
-  untitledLastIndex: 0,
-  predefinedQueries: [],
-  db: null
-}
-
-export const mutations = {
-  setDb (state, db) {
-    if (state.db) {
-      state.db.shutDown()
-    }
-    state.db = db
-  },
-  saveSchema (state, { dbName, schema }) {
-    state.dbName = dbName
-    state.schema = schema
-  },
-
-  updateTab (state, { index, name, id, query, chart, isUnsaved }) {
-    const tab = state.tabs[index]
-    const oldId = tab.id
-
-    if (id && state.currentTabId === oldId) {
-      state.currentTabId = id
-    }
-
-    if (id) { tab.id = id }
-    if (name) { tab.name = name }
-    if (query) { tab.query = query }
-    if (chart) { tab.chart = chart }
-    if (isUnsaved !== undefined) { tab.isUnsaved = isUnsaved }
-    if (!isUnsaved) {
-      // Saved query is not predefined
-      delete tab.isPredefined
-    }
-
-    Vue.set(state.tabs, index, tab)
-  },
-  deleteTab (state, index) {
-    // If closing tab is the current opened
-    if (state.tabs[index].id === state.currentTabId) {
-      if (index < state.tabs.length - 1) {
-        state.currentTabId = state.tabs[index + 1].id
-      } else if (index > 0) {
-        state.currentTabId = state.tabs[index - 1].id
-      } else {
-        state.currentTabId = null
-        state.currentTab = null
-        state.untitledLastIndex = 0
-      }
-    }
-    state.tabs.splice(index, 1)
-  },
-  setCurrentTabId (state, id) {
-    state.currentTabId = id
-  },
-  setCurrentTab (state, tab) {
-    state.currentTab = tab
-  },
-  updatePredefinedQueries (state, queries) {
-    if (Array.isArray(queries)) {
-      state.predefinedQueries = queries
-    } else {
-      state.predefinedQueries = [queries]
-    }
-  }
-}
-
-export const actions = {
-  async addTab ({ state }, data) {
-    const tab = data ? JSON.parse(JSON.stringify(data)) : {}
-    // If no data then create a new blank one...
-    // No data.id means to create new tab, but not blank,
-    // e.g. with 'select * from csv_import' query after csv import
-    if (!data || !data.id) {
-      tab.id = nanoid()
-      tab.name = null
-      tab.tempName = state.untitledLastIndex
-        ? `Untitled ${state.untitledLastIndex}`
-        : 'Untitled'
-      tab.isUnsaved = true
-    } else {
-      tab.isUnsaved = false
-    }
-
-    // add new tab only if was not already opened
-    if (!state.tabs.some(openedTab => openedTab.id === tab.id)) {
-      state.tabs.push(tab)
-      if (!tab.name) {
-        state.untitledLastIndex += 1
-      }
-    }
-
-    return tab.id
-  }
-}
-
 export default new Vuex.Store({
   state,
   mutations,

src/store/mutations.js

@@ -0,0 +1,59 @@
+import Vue from 'vue'
+
+export default {
+  setDb (state, db) {
+    if (state.db) {
+      state.db.shutDown()
+    }
+    state.db = db
+  },
+
+  updateTab (state, { index, name, id, query, chart, isUnsaved }) {
+    const tab = state.tabs[index]
+    const oldId = tab.id
+
+    if (id && state.currentTabId === oldId) {
+      state.currentTabId = id
+    }
+
+    if (id) { tab.id = id }
+    if (name) { tab.name = name }
+    if (query) { tab.query = query }
+    if (chart) { tab.chart = chart }
+    if (isUnsaved !== undefined) { tab.isUnsaved = isUnsaved }
+    if (!isUnsaved) {
+      // Saved query is not predefined
+      delete tab.isPredefined
+    }
+
+    Vue.set(state.tabs, index, tab)
+  },
+  deleteTab (state, index) {
+    // If closing tab is the current opened
+    if (state.tabs[index].id === state.currentTabId) {
+      if (index < state.tabs.length - 1) {
+        state.currentTabId = state.tabs[index + 1].id
+      } else if (index > 0) {
+        state.currentTabId = state.tabs[index - 1].id
+      } else {
+        state.currentTabId = null
+        state.currentTab = null
+        state.untitledLastIndex = 0
+      }
+    }
+    state.tabs.splice(index, 1)
+  },
+  setCurrentTabId (state, id) {
+    state.currentTabId = id
+  },
+  setCurrentTab (state, tab) {
+    state.currentTab = tab
+  },
+  updatePredefinedQueries (state, queries) {
+    if (Array.isArray(queries)) {
+      state.predefinedQueries = queries
+    } else {
+      state.predefinedQueries = [queries]
+    }
+  }
+}

src/store/state.js

@@ -0,0 +1,8 @@
+export default {
+  tabs: [],
+  currentTab: null,
+  currentTabId: null,
+  untitledLastIndex: 0,
+  predefinedQueries: [],
+  db: null
+}

src/time.js

@@ -1,36 +0,0 @@
-export default {
-  getPeriod (start, end) {
-    let diff = end.getTime() - start.getTime()
-    let result = ''
-
-    const days = Math.floor(diff / (1000 * 60 * 60 * 24))
-    diff -= days * (1000 * 60 * 60 * 24)
-    if (days) {
-      result += days + ' d '
-    }
-
-    const hours = Math.floor(diff / (1000 * 60 * 60))
-    diff -= hours * (1000 * 60 * 60)
-    if (hours) {
-      result += hours + ' h '
-    }
-
-    const mins = Math.floor(diff / (1000 * 60))
-    diff -= mins * (1000 * 60)
-    if (mins) {
-      result += mins + ' m '
-    }
-
-    const seconds = Math.floor(diff / (1000))
-    diff -= seconds * (1000)
-    if (seconds) {
-      result += seconds + ' s '
-    }
-
-    if (diff) {
-      result += diff + ' ms '
-    }
-
-    return result.replace(/\s$/, '')
-  }
-}

src/views/Editor.vue

@@ -1,78 +0,0 @@
-<template>
-  <div>
-    <splitpanes
-      class="schema-tabs-splitter"
-      :before="{ size: 20, max: 30 }"
-      :after="{ size: 80, max: 100 }"
-    >
-      <template #left-pane>
-        <schema v-if="$store.state.schema"/>
-        <div v-else id="empty-schema-container">
-          <div class="warning">
-            Database is not loaded. Queries can’t be run without database.
-          </div>
-          <db-uploader id="db-uploader"/>
-        </div>
-      </template>
-      <template #right-pane>
-        <tabs />
-      </template>
-    </splitpanes>
-  </div>
-</template>
-
-<script>
-import Splitpanes from '@/components/Splitpanes'
-import Schema from '@/components/Schema'
-import Tabs from '@/components/Tabs'
-import DbUploader from '@/components/DbUploader'
-
-export default {
-  name: 'Editor',
-  components: {
-    Schema,
-    Splitpanes,
-    Tabs,
-    DbUploader
-  }
-}
-</script>
-
-<style scoped>
-.schema-tabs-splitter {
-  height: 100%;
-  background-color: var(--color-white);
-}
-#empty-schema-container {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  min-width: 200px;
-  height: 100%;
-}
-
-#db-uploader {
-  flex-grow: 1;
-  padding: 24px;
-  width: 100%;
-  box-sizing: border-box;
-}
-
-.warning {
-  padding: 12px 24px;
-  width: 100%;
-  box-sizing: border-box;
-}
-
->>> .db-uploader-container {
-  width: 100%;
-}
-
->>>.drop-area {
-  padding: 0 15px;
-}
-
->>>.drop-area .text {
-  max-width: 200px;
-}
-</style>

src/views/Main/AppDiagnosticInfo.vue

@@ -0,0 +1,90 @@
+<template>
+  <div id="app-info-container">
+    <img
+      id="app-info-icon"
+      :src="require('@/assets/images/info.svg')"
+      @click="$modal.show('app-info')"
+    />
+    <modal name="app-info" classes="dialog" height="auto" width="400px">
+      <div class="dialog-header">
+        App info
+        <close-icon @click="$modal.hide('app-info')"/>
+      </div>
+      <div class="dialog-body">
+        <div v-for="(item, index) in info" :key="index" class="info-item">
+          {{item.name}}
+          <div class="divider"/>
+          <div class="options">
+            <div v-for="(opt, index) in item.info" :key="index">
+              {{opt}}
+            </div>
+          </div>
+        </div>
+      </div>
+    </modal>
+  </div>
+</template>
+
+<script>
+import CloseIcon from '@/components/svg/close'
+
+export default {
+  name: 'AppDiagnosticInfo',
+  components: { CloseIcon },
+  data () {
+    return {
+      info: [
+        {
+          name: 'sqliteviz version',
+          info: [require('../../../package.json').version]
+        }
+      ]
+    }
+  },
+
+  async created () {
+    const state = this.$store.state
+    let result = await state.db.execute('select sqlite_version()')
+    this.info.push({
+      name: 'SQLite version',
+      info: result.values[0]
+    })
+
+    result = await state.db.execute('PRAGMA compile_options')
+    this.info.push({
+      name: 'SQLite compile options',
+      info: result.values.map(row => row[0])
+    })
+  }
+}
+</script>
+
+<style scoped>
+#app-info-icon {
+  cursor: pointer;
+}
+#app-info-container {
+  display: flex;
+  justify-content: center;
+  margin-left: 32px;
+}
+.divider {
+  height: 1px;
+  background-color: var(--color-border);
+  margin: 4px 0;
+}
+.options {
+  font-family: monospace;
+  font-size: 13px;
+  margin-left: 8px;
+  overflow: auto;
+  max-height: 170px;
+}
+.info-item {
+  margin-bottom: 32px;
+   font-size: 14px;
+}
+.info-item:last-child {
+  margin-bottom: 0;
+}
+</style>

src/views/Main/Editor/Schema/index.vue

@@ -5,10 +5,12 @@
     </div>
     <div id="db">
       <div @click="schemaVisible = !schemaVisible" class="db-name">
-        <tree-chevron :expanded="schemaVisible"/>
+        <tree-chevron v-show="schema.length > 0" :expanded="schemaVisible"/>
         {{ dbName }}
       </div>
-        <db-uploader id="db-edit" type="small" />
+      <db-uploader id="db-edit" type="small" />
+      <export-icon tooltip="Export database" @click="exportToFile"/>
+      <add-table-icon @click="addCsv"/>
     </div>
     <div v-show="schemaVisible" class="schema">
       <table-description
@@ -18,14 +20,26 @@
         :columns="table.columns"
       />
     </div>
+
+    <!--Parse csv dialog  -->
+    <csv-import
+      ref="addCsv"
+      :file="file"
+      :db="$store.state.db"
+      dialog-name="addCsv"
+    />
   </div>
 </template>
 
 <script>
-import TableDescription from '@/components/TableDescription'
+import fIo from '@/lib/utils/fileIo'
+import TableDescription from './TableDescription'
 import TextField from '@/components/TextField'
 import TreeChevron from '@/components/svg/treeChevron'
 import DbUploader from '@/components/DbUploader'
+import ExportIcon from '@/components/svg/export'
+import AddTableIcon from '@/components/svg/addTable'
+import CsvImport from '@/components/CsvImport'
 
 export default {
   name: 'Schema',
@@ -33,28 +47,45 @@ export default {
     TableDescription,
     TextField,
     TreeChevron,
-    DbUploader
+    DbUploader,
+    ExportIcon,
+    AddTableIcon,
+    CsvImport
   },
   data () {
     return {
       schemaVisible: true,
-      filter: null
+      filter: null,
+      file: null
     }
   },
   computed: {
     schema () {
-      if (!this.$store.state.schema) {
+      if (!this.$store.state.db.schema) {
         return []
       }
 
       return !this.filter
-        ? this.$store.state.schema
-        : this.$store.state.schema.filter(
+        ? this.$store.state.db.schema
+        : this.$store.state.db.schema.filter(
           table => table.name.toUpperCase().indexOf(this.filter.toUpperCase()) !== -1
         )
     },
     dbName () {
-      return this.$store.state.dbName
+      return this.$store.state.db.dbName
+    }
+  },
+  methods: {
+    exportToFile () {
+      this.$store.state.db.export(`${this.dbName}.sqlite`)
+    },
+    async addCsv () {
+      this.file = await fIo.getFileFromUser('.csv')
+      await this.$nextTick()
+      const csvImport = this.$refs.addCsv
+      csvImport.reset()
+      await csvImport.previewCsv()
+      csvImport.open()
     }
   }
 }
@@ -78,7 +109,7 @@ export default {
   width: 100%;
   height: 100px;
   box-sizing: border-box;
-  background-image: linear-gradient(white 73%, transparent);;
+  background-image: linear-gradient(white 73%, rgba(255, 255, 255, 0));
   z-index: 2;
 }
 .schema, .db-name {
@@ -95,6 +126,11 @@ export default {
 
 .db-name {
   cursor: pointer;
+  margin-right: 6px;
+  max-width: 150px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  flex-shrink: 0;
 }
 
 .db-name:hover .chevron-icon path,

src/views/Main/Editor/Tabs/Tab/Chart/index.vue

@@ -28,7 +28,7 @@ import plotly from 'plotly.js/dist/plotly'
 import 'react-chart-editor/lib/react-chart-editor.min.css'
 
 import PlotlyEditor from 'react-chart-editor'
-import chart from '@/chart'
+import chartHelper from './chartHelper'
 import dereference from 'react-chart-editor/lib/lib/dereference'
 
 export default {
@@ -49,10 +49,10 @@ export default {
   },
   computed: {
     dataSources () {
-      return chart.getDataSourcesFromSqlResult(this.sqlResult)
+      return chartHelper.getDataSourcesFromSqlResult(this.sqlResult)
     },
     dataSourceOptions () {
-      return chart.getOptionsFromDataSources(this.dataSources)
+      return chartHelper.getOptionsFromDataSources(this.dataSources)
     }
   },
   watch: {
@@ -71,7 +71,7 @@ export default {
       this.$emit('update')
     },
     getChartStateForSave () {
-      return chart.getChartStateForSave(this.state, this.dataSources)
+      return chartHelper.getChartStateForSave(this.state, this.dataSources)
     }
   }
 }

src/views/Main/Editor/Tabs/Tab/SqlEditor/hint.js

@@ -2,7 +2,6 @@ import CM from 'codemirror'
 import 'codemirror/addon/hint/show-hint.js'
 import 'codemirror/addon/hint/sql-hint.js'
 import store from '@/store'
-import { debounce } from 'debounce'
 
 export function getHints (cm, options) {
   const token = cm.getTokenAt(cm.getCursor()).string.toUpperCase()
@@ -18,28 +17,34 @@ export function getHints (cm, options) {
 const hintOptions = {
   get tables () {
     const tables = {}
-    if (store.state.schema) {
-      store.state.schema.forEach(table => {
+    if (store.state.db.schema) {
+      store.state.db.schema.forEach(table => {
         tables[table.name] = table.columns.map(column => column.name)
       })
     }
     return tables
   },
+  get defaultTable () {
+    const schema = store.state.db.schema
+    return schema && schema.length === 1 ? schema[0].name : null
+  },
   completeSingle: false,
   completeOnSingleClick: true,
   alignWithWord: false
 }
 
-export default {
-  show: debounce(function (editor) {
-    // Don't show autocomplete after a space or semicolon or in string literals
-    const token = editor.getTokenAt(editor.getCursor())
-    const ch = token.string.slice(-1)
-    const tokenType = token.type
-    if (tokenType === 'string' || !ch || ch === ' ' || ch === ';') {
-      return
-    }
-
-    CM.showHint(editor, getHints, hintOptions)
-  }, 400)
+export function showHintOnDemand (editor) {
+  CM.showHint(editor, getHints, hintOptions)
+}
+
+export default function showHint (editor) {
+  // Don't show autocomplete after a space or semicolon or in string literals
+  const token = editor.getTokenAt(editor.getCursor())
+  const ch = token.string.slice(-1)
+  const tokenType = token.type
+  if (tokenType === 'string' || !ch || ch === ' ' || ch === ';') {
+    return
+  }
+
+  CM.showHint(editor, getHints, hintOptions)
 }

src/views/Main/Editor/Tabs/Tab/SqlEditor/index.vue

@@ -1,11 +1,12 @@
 <template>
   <div class="codemirror-container">
-    <codemirror v-model="query" :options="cmOptions" @changes="onChange" />
+    <codemirror ref="cm" v-model="query" :options="cmOptions" @changes="onChange" />
   </div>
 </template>
 
 <script>
-import hint from '@/hint'
+import showHint, { showHintOnDemand } from './hint'
+import time from '@/lib/utils/time'
 import { codemirror } from 'vue-codemirror'
 import 'codemirror/lib/codemirror.css'
 import 'codemirror/mode/sql/sql.js'
@@ -27,8 +28,8 @@ export default {
         theme: 'neo',
         lineNumbers: true,
         line: true,
-        autofocus: true,
-        autoRefresh: true
+        autoRefresh: true,
+        extraKeys: { 'Ctrl-Space': showHintOnDemand }
       }
     }
   },
@@ -38,7 +39,10 @@ export default {
     }
   },
   methods: {
-    onChange: hint.show
+    onChange: time.debounce(showHint, 400),
+    focus () {
+      this.$refs.cm.codemirror.focus()
+    }
   }
 }
 </script>

src/views/Main/Editor/Tabs/Tab/index.vue

@@ -8,7 +8,7 @@
     >
       <template #left-pane>
         <div class="query-editor">
-          <sql-editor v-model="query" />
+          <sql-editor ref="sqlEditor" v-model="query" />
         </div>
       </template>
       <template #right-pane>
@@ -21,7 +21,8 @@
             >
               Run your query and get results here
             </div>
-            <div v-show="isGettingResults" class="table-preview result-in-progress">
+            <div v-if="isGettingResults" class="table-preview result-in-progress">
+              <loading-indicator :size="30"/>
               Fetching results...
             </div>
             <div
@@ -30,10 +31,8 @@
             >
               No rows retrieved according to your query
             </div>
-            <div v-show="error" class="table-preview error">
-              {{ error }}
-            </div>
-            <sql-table v-if="result" :data-set="result" :height="tableViewHeight" />
+            <logs v-if="error" :messages="[error]"/>
+            <sql-table v-if="result" :data-set="result" :time="time" :height="tableViewHeight" />
           </div>
           <chart
             :visible="view === 'chart'"
@@ -50,10 +49,13 @@
 
 <script>
 import SqlTable from '@/components/SqlTable'
-import SqlEditor from '@/components/SqlEditor'
 import Splitpanes from '@/components/Splitpanes'
-import ViewSwitcher from '@/components/ViewSwitcher'
-import Chart from '@/components/Chart'
+import LoadingIndicator from '@/components/LoadingIndicator'
+import SqlEditor from './SqlEditor'
+import ViewSwitcher from './ViewSwitcher'
+import Chart from './Chart'
+import Logs from '@/components/Logs'
+import time from '@/lib/utils/time'
 
 export default {
   name: 'Tab',
@@ -63,7 +65,9 @@ export default {
     SqlTable,
     Splitpanes,
     ViewSwitcher,
-    Chart
+    Chart,
+    LoadingIndicator,
+    Logs
   },
   data () {
     return {
@@ -73,7 +77,8 @@ export default {
       tableViewHeight: 0,
       isGettingResults: false,
       error: null,
-      resizeObserver: null
+      resizeObserver: null,
+      time: 0
     }
   },
   computed: {
@@ -81,9 +86,6 @@ export default {
       return this.id === this.$store.state.currentTabId
     }
   },
-  created () {
-    this.$store.commit('setCurrentTab', this)
-  },
   mounted () {
     this.resizeObserver = new ResizeObserver(this.handleResize)
     this.resizeObserver.observe(this.$refs.bottomPane)
@@ -93,9 +95,14 @@ export default {
     this.resizeObserver.unobserve(this.$refs.bottomPane)
   },
   watch: {
-    isActive () {
-      if (this.isActive) {
-        this.$store.commit('setCurrentTab', this)
+    isActive: {
+      immediate: true,
+      async handler () {
+        if (this.isActive) {
+          this.$store.commit('setCurrentTab', this)
+          await this.$nextTick()
+          this.$refs.sqlEditor.focus()
+        }
       }
     },
     query () {
@@ -108,11 +115,18 @@ export default {
       this.isGettingResults = true
       this.result = null
       this.error = null
+      const state = this.$store.state
       try {
-        this.result = await this.$store.state.db.execute(this.query + ';')
+        const start = new Date()
+        this.result = await state.db.execute(this.query + ';')
+        this.time = time.getPeriod(start, new Date())
       } catch (err) {
-        this.error = err
+        this.error = {
+          type: 'error',
+          message: err
+        }
       }
+      state.db.refreshSchema()
       this.isGettingResults = false
     },
     handleResize () {
@@ -128,12 +142,12 @@ export default {
     calculateTableHeight () {
       const bottomPane = this.$refs.bottomPane
       // 88 - view swittcher height
-      // 42 - table footer width
-      // 30 - desirable space after the table
+      // 34 - table footer width
+      // 12 - desirable space after the table
       // 5 - padding-bottom of rounded table container
-      // 40 - height of table header
-      const freeSpace = bottomPane.offsetHeight - 88 - 42 - 30 - 5 - 40
-      this.tableViewHeight = freeSpace - (freeSpace % 40)
+      // 35 - height of table header
+      const freeSpace = bottomPane.offsetHeight - 88 - 34 - 12 - 5 - 35
+      this.tableViewHeight = freeSpace - (freeSpace % 35)
     }
   }
 }
@@ -180,11 +194,32 @@ export default {
   font-size: 13px;
 }
 
-.table-preview.error {
-  color: var(--color-text-error);
+.result-in-progress {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+  will-change: opacity;
+  /*
+    We need to show loader in 1 sec after starting query execution. We can't do that with
+    setTimeout because the main thread can be busy by getting a result set from the web worker.
+    But we can use CSS animation for opacity. Opacity triggers changes only in the Composite Layer
+    stage in rendering waterfall. Hence it can be processed only with Compositor Thread while
+    the Main Thread processes a result set.
+    https://www.viget.com/articles/animation-performance-101-browser-under-the-hood/
+  */
+  animation: show-loader 1s linear 0s 1;
 }
 
-.table-preview.error::first-letter {
-  text-transform: capitalize;
+@keyframes show-loader {
+  0% {
+    opacity: 0;
+  }
+  99% {
+    opacity: 0;
+  }
+  100% {
+    opacity: 1;
+  }
 }
 </style>

src/views/Main/Editor/Tabs/index.vue

@@ -62,7 +62,7 @@
 </template>
 
 <script>
-import Tab from '@/components/Tab'
+import Tab from './Tab'
 import CloseIcon from '@/components/svg/close'
 
 export default {

src/views/Main/Editor/index.vue

@@ -0,0 +1,62 @@
+<template>
+  <div>
+    <splitpanes
+      class="schema-tabs-splitter"
+      :before="{ size: 20, max: 30 }"
+      :after="{ size: 80, max: 100 }"
+    >
+      <template #left-pane>
+        <schema/>
+      </template>
+      <template #right-pane>
+        <tabs />
+      </template>
+    </splitpanes>
+  </div>
+</template>
+
+<script>
+import Splitpanes from '@/components/Splitpanes'
+import Schema from './Schema'
+import Tabs from './Tabs'
+
+export default {
+  name: 'Editor',
+  components: {
+    Schema,
+    Splitpanes,
+    Tabs
+  },
+  async beforeCreate () {
+    const schema = this.$store.state.db.schema
+    if (!schema || schema.length === 0) {
+      const stmt = [
+        '/*',
+        ' * Your database is empty. In order to start building charts',
+        ' * you should create a table and insert data into it.',
+        ' */',
+        'CREATE TABLE house',
+        '(',
+        '  name TEXT,',
+        '  points INTEGER',
+        ');',
+        'INSERT INTO house VALUES',
+        "('Gryffindor', 100),",
+        "('Hufflepuff', 90),",
+        "('Ravenclaw', 95),",
+        "('Slytherin', 80);"
+      ].join('\n')
+
+      const tabId = await this.$store.dispatch('addTab', { query: stmt })
+      this.$store.commit('setCurrentTabId', tabId)
+    }
+  }
+}
+</script>
+
+<style scoped>
+.schema-tabs-splitter {
+  height: 100%;
+  background-color: var(--color-white);
+}
+</style>

src/views/Main/MainMenu.vue

@@ -3,8 +3,9 @@
     <div>
       <router-link to="/editor">Editor</router-link>
       <router-link to="/my-queries">My queries</router-link>
+      <a href="https://github.com/lana-k/sqliteviz/wiki" target="_blank">Help</a>
     </div>
-    <div>
+    <div id="nav-buttons">
       <button
         id="run-btn"
         v-if="currentQuery && $route.path === '/editor'"
@@ -30,6 +31,7 @@
       >
         Create
       </button>
+      <app-diagnostic-info />
     </div>
 
     <!--Save Query dialog  -->
@@ -62,13 +64,15 @@
 <script>
 import TextField from '@/components/TextField'
 import CloseIcon from '@/components/svg/close'
-import storedQueries from '@/storedQueries'
+import storedQueries from '@/lib/storedQueries'
+import AppDiagnosticInfo from './AppDiagnosticInfo'
 
 export default {
   name: 'MainMenu',
   components: {
     TextField,
-    CloseIcon
+    CloseIcon,
+    AppDiagnosticInfo
   },
   data () {
     return {
@@ -96,7 +100,7 @@ export default {
       }
     },
     runDisabled () {
-      return this.currentQuery && (!this.$store.state.schema || !this.currentQuery.query)
+      return this.currentQuery && (!this.$store.state.db || !this.currentQuery.query)
     }
   },
   created () {
@@ -212,7 +216,7 @@ nav {
   top: 0;
   left: 0;
   width: 100vw;
-  padding: 0 52px;
+  padding: 0 16px 0 52px;
   z-index: 999;
 }
 a {
@@ -237,4 +241,8 @@ button {
 #save-note img {
   margin: -3px 6px 0 0;
 }
+
+#nav-buttons {
+  display: flex;
+}
 </style>

src/views/Main/MyQueries/index.vue

@@ -81,7 +81,10 @@
                   <div class="icons-container">
                     <rename-icon v-if="!query.isPredefined" @click="showRenameDialog(query.id)" />
                     <copy-icon @click="duplicateQuery(index)"/>
-                    <export-icon @click="exportToFile([query], `${query.name}.json`)"/>
+                    <export-icon
+                      @click="exportToFile([query], `${query.name}.json`)"
+                      tooltip="Export query to file"
+                    />
                     <delete-icon
                       v-if="!query.isPredefined"
                       @click="showDeleteDialog((new Set()).add(query.id))"
@@ -138,16 +141,16 @@
 </template>
 
 <script>
-import RenameIcon from '@/components/svg/rename'
-import CopyIcon from '@/components/svg/copy'
+import RenameIcon from './svg/rename'
+import CopyIcon from './svg/copy'
 import ExportIcon from '@/components/svg/export'
-import DeleteIcon from '@/components/svg/delete'
+import DeleteIcon from './svg/delete'
 import CloseIcon from '@/components/svg/close'
 import TextField from '@/components/TextField'
 import CheckBox from '@/components/CheckBox'
-import tooltipMixin from '@/mixins/tooltips'
-import storedQueries from '@/storedQueries'
-import fu from '@/file.utils'
+import tooltipMixin from '@/tooltipMixin'
+import storedQueries from '@/lib/storedQueries'
+import fu from '@/lib/utils/fileIo'
 
 export default {
   name: 'MyQueries',
@@ -445,6 +448,7 @@ export default {
 }
 
 .rounded-bg {
+  padding-top: 40px;
   margin: 0 auto;
   max-width: 1500px;
   width: 100%;
@@ -520,7 +524,7 @@ tbody tr:hover td {
   text-overflow: ellipsis;
 }
 tbody tr:hover .icons-container {
-  display: block;
+  display: flex;
 }
 .dialog input {
   width: 100%;

src/views/Main/MyQueries/svg/copy.vue

@@ -23,7 +23,7 @@
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'CopyIcon',
@@ -33,7 +33,7 @@ export default {
 
 <style scoped>
 .icon {
-  vertical-align: middle;
+  display: block;
   margin: 0 12px;
 }
 .icon:hover path {

src/views/Main/MyQueries/svg/delete.vue

@@ -23,7 +23,7 @@
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'DeleteIcon',
@@ -33,7 +33,7 @@ export default {
 
 <style scoped>
 .icon {
-  vertical-align: middle;
+  display: block;
   margin: 0 12px;
 }
 

src/views/Main/MyQueries/svg/rename.vue

@@ -23,7 +23,7 @@
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'RenameIcon',
@@ -33,7 +33,7 @@ export default {
 
 <style scoped>
 .icon {
-  vertical-align: middle;
+  display: block;
   margin: 0 12px;
 }
 

src/views/Main/index.vue

@@ -8,11 +8,11 @@
 </template>
 
 <script>
-import MainMenu from '@/components/MainMenu'
+import MainMenu from './MainMenu'
 import '@/assets/styles/scrollbars.css'
 
 export default {
-  name: 'MainView',
+  name: 'Main',
   components: { MainMenu }
 }
 </script>

src/views/Welcome.vue

@@ -4,8 +4,8 @@
     <div id="note">
       Sqliteviz is fully client-side. Your database never leaves your computer.
     </div>
-    <button id ="skip" class="secondary" @click="$router.push('/editor')">
-      Skip database loading
+    <button id="skip" class="secondary" @click="$router.push('/editor')">
+      Create empty database
     </button>
   </div>
 </template>
@@ -14,7 +14,7 @@
 import DbUploader from '@/components/DbUploader'
 
 export default {
-  name: 'Home',
+  name: 'Welcome',
   components: { DbUploader }
 }
 </script>

tests/components/CsvImport/CsvImport.spec.js

@@ -0,0 +1,706 @@
+import { expect } from 'chai'
+import sinon from 'sinon'
+import Vuex from 'vuex'
+import { mount } from '@vue/test-utils'
+import CsvImport from '@/components/CsvImport'
+import csv from '@/components/CsvImport/csv'
+
+describe('CsvImport.vue', () => {
+  let state = {}
+  let actions = {}
+  let mutations = {}
+  let store = {}
+  let clock
+  let wrapper
+  const newTabId = 1
+  const file = { name: 'my data.csv' }
+
+  beforeEach(() => {
+    clock = sinon.useFakeTimers()
+
+    // mock store state and mutations
+    state = {}
+    mutations = {
+      setDb: sinon.stub(),
+      setCurrentTabId: sinon.stub()
+    }
+    actions = {
+      addTab: sinon.stub().resolves(newTabId)
+    }
+    store = new Vuex.Store({ state, mutations, actions })
+
+    const db = {
+      sanitizeTableName: sinon.stub().returns('my_data'),
+      addTableFromCsv: sinon.stub().resolves(),
+      createProgressCounter: sinon.stub().returns(1),
+      deleteProgressCounter: sinon.stub(),
+      validateTableName: sinon.stub().resolves(),
+      execute: sinon.stub().resolves(),
+      refreshSchema: sinon.stub().resolves()
+    }
+
+    // mount the component
+    wrapper = mount(CsvImport, {
+      store,
+      propsData: {
+        file,
+        dialogName: 'addCsv',
+        db
+      }
+    })
+  })
+
+  afterEach(() => {
+    sinon.restore()
+  })
+
+  it('previews', async () => {
+    sinon.stub(csv, 'parse').resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo'],
+          [2, 'bar']
+        ]
+      },
+      messages: [{
+        code: 'UndetectableDelimiter',
+        message: 'Comma was used as a standart delimiter',
+        row: 0,
+        type: 'info',
+        hint: undefined
+      }]
+    })
+
+    wrapper.vm.previewCsv()
+    await wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+    expect(wrapper.find('[data-modal="addCsv"]').exists()).to.equal(true)
+    expect(wrapper.find('#csv-table-name input').element.value).to.equal('my_data')
+    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.value).to.equal('|')
+    expect(wrapper.find('#quote-char input').element.value).to.equal('"')
+    expect(wrapper.find('#escape-char input').element.value).to.equal('"')
+    expect(wrapper.findComponent({ name: 'check-box' }).vm.checked).to.equal(true)
+    const rows = wrapper.findAll('tbody tr')
+    expect(rows).to.have.lengthOf(2)
+    expect(rows.at(0).findAll('td').at(0).text()).to.equal('1')
+    expect(rows.at(0).findAll('td').at(1).text()).to.equal('foo')
+    expect(rows.at(1).findAll('td').at(0).text()).to.equal('2')
+    expect(rows.at(1).findAll('td').at(1).text()).to.equal('bar')
+    expect(wrapper.findComponent({ name: 'logs' }).text())
+      .to.include('Information about row 0. Comma was used as a standart delimiter.')
+    expect(wrapper.findComponent({ name: 'logs' }).text())
+      .to.include('Preview parsing is completed in')
+    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
+    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
+  })
+
+  it('reparses when parameters changes', async () => {
+    const parse = sinon.stub(csv, 'parse')
+    parse.onCall(0).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      }
+    })
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await csv.parse.returnValues[0]
+    await wrapper.vm.$nextTick()
+
+    parse.onCall(1).resolves({
+      delimiter: ',',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [2, 'bar']
+        ]
+      },
+      hasErrors: false
+    })
+    await wrapper.find('.delimiter-selector-container input').setValue(',')
+    expect(parse.callCount).to.equal(2)
+    await csv.parse.returnValues[1]
+
+    let rows = wrapper.findAll('tbody tr')
+    expect(rows).to.have.lengthOf(1)
+    expect(rows.at(0).findAll('td').at(0).text()).to.equal('2')
+    expect(rows.at(0).findAll('td').at(1).text()).to.equal('bar')
+    expect(wrapper.findComponent({ name: 'logs' }).text())
+      .to.include('Preview parsing is completed in')
+
+    parse.onCall(2).resolves({
+      delimiter: ',',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [3, 'baz']
+        ]
+      },
+      hasErrors: true,
+      messages: [{
+        code: 'MissingQuotes',
+        message: 'Quote is missed',
+        row: 0,
+        type: 'error',
+        hint: 'Edit your CSV so that the field has a closing quote char.'
+      }]
+    })
+
+    await wrapper.find('#quote-char input').setValue("'")
+    expect(parse.callCount).to.equal(3)
+    await csv.parse.returnValues[2]
+    rows = wrapper.findAll('tbody tr')
+    expect(rows).to.have.lengthOf(1)
+    expect(rows.at(0).findAll('td').at(0).text()).to.equal('3')
+    expect(rows.at(0).findAll('td').at(1).text()).to.equal('baz')
+    expect(wrapper.findComponent({ name: 'logs' }).text())
+      .to.contain('Error in row 0. Quote is missed. Edit your CSV so that the field has a closing quote char.')
+    expect(wrapper.findComponent({ name: 'logs' }).text())
+      .to.not.contain('Preview parsing is completed in')
+
+    parse.onCall(3).resolves({
+      delimiter: ',',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [4, 'qux']
+        ]
+      },
+      hasErrors: false
+    })
+    await wrapper.find('#escape-char input').setValue("'")
+    expect(parse.callCount).to.equal(4)
+    await csv.parse.returnValues[3]
+    rows = wrapper.findAll('tbody tr')
+    expect(rows).to.have.lengthOf(1)
+    expect(rows.at(0).findAll('td').at(0).text()).to.equal('4')
+    expect(rows.at(0).findAll('td').at(1).text()).to.equal('qux')
+    expect(wrapper.findComponent({ name: 'logs' }).text())
+      .to.contain('Preview parsing is completed in')
+
+    parse.onCall(4).resolves({
+      delimiter: ',',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [5, 'corge']
+        ]
+      },
+      hasErrors: false
+    })
+    await wrapper.findComponent({ name: 'check-box' }).trigger('click')
+    expect(parse.callCount).to.equal(5)
+    await csv.parse.returnValues[4]
+    rows = wrapper.findAll('tbody tr')
+    expect(rows).to.have.lengthOf(1)
+    expect(rows.at(0).findAll('td').at(0).text()).to.equal('5')
+    expect(rows.at(0).findAll('td').at(1).text()).to.equal('corge')
+    expect(wrapper.findComponent({ name: 'logs' }).text())
+      .to.include('Preview parsing is completed in')
+  })
+
+  it('has proper state before parsing is complete', async () => {
+    const parse = sinon.stub(csv, 'parse')
+    parse.onCall(0).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      }
+    })
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    let resolveParsing
+    parse.onCall(1).returns(new Promise(resolve => {
+      resolveParsing = resolve
+    }))
+
+    await wrapper.find('#csv-table-name input').setValue('foo')
+    await wrapper.find('#csv-import').trigger('click')
+    await wrapper.vm.$nextTick()
+
+    // "Parsing CSV..." in the logs
+    expect(wrapper.findComponent({ name: 'logs' }).findAll('.msg').at(1).text())
+      .to.equal('Parsing CSV...')
+
+    // After 1 second - loading indicator is shown
+    await clock.tick(1000)
+    expect(
+      wrapper.findComponent({ name: 'logs' }).findComponent({ name: 'LoadingIndicator' }).exists()
+    ).to.equal(true)
+
+    // All the dialog controls are disabled
+    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#quote-char input').element.disabled).to.equal(true)
+    expect(wrapper.find('#escape-char input').element.disabled).to.equal(true)
+    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(true)
+    expect(wrapper.find('#csv-finish').element.disabled).to.equal(true)
+    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
+    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
+    await resolveParsing()
+    await parse.returnValues[1]
+
+    // Loading indicator is not shown when parsing is compete
+    expect(
+      wrapper.findComponent({ name: 'logs' }).findComponent({ name: 'LoadingIndicator' }).exists()
+    ).to.equal(false)
+  })
+
+  it('parsing is completed successfully', async () => {
+    const parse = sinon.stub(csv, 'parse')
+    parse.onCall(0).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    parse.onCall(1).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo'],
+          [2, 'bar']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    let resolveImport
+    wrapper.vm.db.addTableFromCsv.onCall(0).returns(new Promise(resolve => {
+      resolveImport = resolve
+    }))
+
+    await wrapper.find('#csv-table-name input').setValue('foo')
+    await wrapper.find('#csv-import').trigger('click')
+    await csv.parse.returnValues[1]
+    await wrapper.vm.$nextTick()
+
+    // Parsing success in the logs
+    expect(wrapper.findComponent({ name: 'logs' }).findAll('.msg').at(1).text())
+      .to.include('2 rows are parsed successfully in')
+
+    // All the dialog controls are disabled
+    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#quote-char input').element.disabled).to.equal(true)
+    expect(wrapper.find('#escape-char input').element.disabled).to.equal(true)
+    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(true)
+    expect(wrapper.find('#csv-finish').element.disabled).to.equal(true)
+    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
+    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
+    await resolveImport()
+  })
+
+  it('parsing is completed with notes', async () => {
+    const parse = sinon.stub(csv, 'parse')
+    parse.onCall(0).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    parse.onCall(1).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo'],
+          [2, 'bar']
+        ]
+      },
+      hasErrors: false,
+      messages: [{
+        code: 'UndetectableDelimiter',
+        message: 'Comma was used as a standart delimiter',
+        type: 'info',
+        hint: undefined
+      }]
+    })
+
+    let resolveImport
+    wrapper.vm.db.addTableFromCsv.onCall(0).returns(new Promise(resolve => {
+      resolveImport = resolve
+    }))
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-table-name input').setValue('foo')
+    await wrapper.find('#csv-import').trigger('click')
+    await csv.parse.returnValues[1]
+    await wrapper.vm.$nextTick()
+
+    // Parsing success in the logs
+    const logs = wrapper.findComponent({ name: 'logs' }).findAll('.msg')
+    expect(logs).to.have.lengthOf(4)
+    expect(logs.at(1).text()).to.include('2 rows are parsed in')
+    expect(logs.at(2).text()).to.equals('Comma was used as a standart delimiter.')
+
+    // All the dialog controls are disabled
+    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#quote-char input').element.disabled).to.equal(true)
+    expect(wrapper.find('#escape-char input').element.disabled).to.equal(true)
+    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(true)
+    expect(wrapper.find('#csv-finish').element.disabled).to.equal(true)
+    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
+    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
+    await resolveImport()
+  })
+
+  it('parsing is completed with errors', async () => {
+    const parse = sinon.stub(csv, 'parse')
+    parse.onCall(0).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    parse.onCall(1).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo'],
+          [2, 'bar']
+        ]
+      },
+      hasErrors: true,
+      messages: [{
+        code: 'Error',
+        message: 'Something is wrong',
+        type: 'error',
+        hint: undefined
+      }]
+    })
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-table-name input').setValue('foo')
+    await wrapper.find('#csv-import').trigger('click')
+    await csv.parse.returnValues[1]
+    await wrapper.vm.$nextTick()
+
+    // Parsing success in the logs
+    const logs = wrapper.findComponent({ name: 'logs' }).findAll('.msg')
+    expect(logs).to.have.lengthOf(3)
+    expect(logs.at(1).text()).to.include('Parsing ended with errors.')
+    expect(logs.at(2).text()).to.equals('Something is wrong.')
+
+    // All the dialog controls are enabled
+    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#quote-char input').element.disabled).to.equal(false)
+    expect(wrapper.find('#escape-char input').element.disabled).to.equal(false)
+    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(false)
+    expect(wrapper.find('#csv-finish').element.disabled).to.equal(false)
+    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
+    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
+  })
+
+  it('has proper state before import is completed', async () => {
+    const parse = sinon.stub(csv, 'parse')
+    parse.onCall(0).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    parse.onCall(1).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo'],
+          [2, 'bar']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    let resolveImport = sinon.stub()
+    wrapper.vm.db.addTableFromCsv = sinon.stub()
+      .resolves(new Promise(resolve => { resolveImport = resolve }))
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-table-name input').setValue('foo')
+    await wrapper.find('#csv-import').trigger('click')
+    await csv.parse.returnValues[1]
+    await wrapper.vm.$nextTick()
+
+    // Parsing success in the logs
+    expect(wrapper.findComponent({ name: 'logs' }).findAll('.msg').at(2).text())
+      .to.equal('Importing CSV into a SQLite database...')
+
+    // After 1 second - loading indicator is shown
+    await clock.tick(1000)
+    expect(
+      wrapper.findComponent({ name: 'logs' }).findComponent({ name: 'LoadingIndicator' }).exists()
+    ).to.equal(true)
+
+    // All the dialog controls are disabled
+    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#quote-char input').element.disabled).to.equal(true)
+    expect(wrapper.find('#escape-char input').element.disabled).to.equal(true)
+    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(true)
+    expect(wrapper.find('#csv-finish').element.disabled).to.equal(true)
+    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(true)
+    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
+    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
+    expect(wrapper.vm.db.addTableFromCsv.getCall(0).args[0]).to.equal('foo') // table name
+
+    // After resolving - loading indicator is not shown
+    await resolveImport()
+    await wrapper.vm.db.addTableFromCsv.returnValues[0]
+    expect(
+      wrapper.findComponent({ name: 'logs' }).findComponent({ name: 'LoadingIndicator' }).exists()
+    ).to.equal(false)
+  })
+
+  it('import success', async () => {
+    const parse = sinon.stub(csv, 'parse')
+    parse.onCall(0).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+    // we need to separate calles because messages will mutate
+    parse.onCall(1).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo'],
+          [2, 'bar']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-table-name input').setValue('foo')
+    await wrapper.find('#csv-import').trigger('click')
+    await csv.parse.returnValues[1]
+    await wrapper.vm.$nextTick()
+
+    // Import success in the logs
+    const logs = wrapper.findComponent({ name: 'logs' }).findAll('.msg')
+    expect(logs).to.have.lengthOf(3)
+    expect(logs.at(2).text()).to.contain('Importing CSV into a SQLite database is completed in')
+
+    // All the dialog controls are enabled
+    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#quote-char input').element.disabled).to.equal(false)
+    expect(wrapper.find('#escape-char input').element.disabled).to.equal(false)
+    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(false)
+    expect(wrapper.find('#csv-finish').element.disabled).to.equal(false)
+    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#csv-finish').isVisible()).to.equal(true)
+  })
+
+  it('import fails', async () => {
+    const parse = sinon.stub(csv, 'parse')
+    parse.onCall(0).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+    // we need to separate calles because messages will mutate
+    parse.onCall(1).resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo'],
+          [2, 'bar']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    wrapper.vm.db.addTableFromCsv = sinon.stub().rejects(new Error('fail'))
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-table-name input').setValue('foo')
+    await wrapper.find('#csv-import').trigger('click')
+    await csv.parse.returnValues[1]
+    await wrapper.vm.$nextTick()
+
+    // Import success in the logs
+    const logs = wrapper.findComponent({ name: 'logs' }).findAll('.msg')
+    expect(logs).to.have.lengthOf(4)
+    expect(logs.at(2).text()).to.contain('Importing CSV into a SQLite database...')
+    expect(logs.at(3).text()).to.equal('Error: fail.')
+
+    // All the dialog controls are enabled
+    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#quote-char input').element.disabled).to.equal(false)
+    expect(wrapper.find('#escape-char input').element.disabled).to.equal(false)
+    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(false)
+    expect(wrapper.find('#csv-finish').element.disabled).to.equal(false)
+    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(false)
+    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
+  })
+
+  it('import finish', async () => {
+    sinon.stub(csv, 'parse').resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    wrapper.vm.previewCsv()
+    wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-import').trigger('click')
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-finish').trigger('click')
+
+    expect(actions.addTab.calledOnce).to.equal(true)
+    await actions.addTab.returnValues[0]
+    expect(mutations.setCurrentTabId.calledOnceWith(state, newTabId)).to.equal(true)
+    expect(wrapper.find('[data-modal="addCsv"]').exists()).to.equal(false)
+    expect(wrapper.emitted('finish')).to.have.lengthOf(1)
+  })
+
+  it('import cancel', async () => {
+    sinon.stub(csv, 'parse').resolves({
+      delimiter: '|',
+      data: {
+        columns: ['col1', 'col2'],
+        values: [
+          [1, 'foo']
+        ]
+      },
+      hasErrors: false,
+      messages: []
+    })
+
+    await wrapper.vm.previewCsv()
+    await wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-import').trigger('click')
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-cancel').trigger('click')
+
+    expect(wrapper.find('[data-modal="addCsv"]').exists()).to.equal(false)
+    expect(wrapper.vm.db.execute.calledOnceWith('DROP TABLE "my_data"')).to.equal(true)
+    expect(wrapper.vm.db.refreshSchema.calledOnce).to.equal(true)
+    expect(wrapper.emitted('cancel')).to.have.lengthOf(1)
+  })
+
+  it('checks table name', async () => {
+    sinon.stub(csv, 'parse').resolves()
+    await wrapper.vm.previewCsv()
+    await wrapper.vm.open()
+    await wrapper.vm.$nextTick()
+
+    await wrapper.find('#csv-table-name input').setValue('foo')
+    await clock.tick(400)
+    await wrapper.vm.$nextTick()
+    expect(wrapper.find('#csv-table-name .text-field-error').text()).to.equal('')
+
+    wrapper.vm.db.validateTableName = sinon.stub().rejects(new Error('this is a bad table name'))
+    await wrapper.find('#csv-table-name input').setValue('bar')
+    await clock.tick(400)
+    await wrapper.vm.$nextTick()
+    expect(wrapper.find('#csv-table-name .text-field-error').text())
+      .to.equal('this is a bad table name. Try another table name.')
+
+    await wrapper.find('#csv-table-name input').setValue('')
+    await clock.tick(400)
+    await wrapper.vm.$nextTick()
+    expect(wrapper.find('#csv-table-name .text-field-error').text()).to.equal('')
+
+    await wrapper.find('#csv-import').trigger('click')
+    expect(wrapper.find('#csv-table-name .text-field-error').text())
+      .to.equal("Table name can't be empty")
+    expect(wrapper.vm.db.addTableFromCsv.called).to.equal(false)
+  })
+})

tests/components/CsvImport/DelimiterSelector.spec.js

@@ -1,6 +1,6 @@
 import { expect } from 'chai'
 import { mount, shallowMount } from '@vue/test-utils'
-import DelimiterSelector from '@/components/DelimiterSelector'
+import DelimiterSelector from '@/components/CsvImport/DelimiterSelector'
 
 describe('DelimiterSelector', async () => {
   it('shows the name of value', async () => {

tests/components/CsvImport/csv.spec.js

@@ -1,6 +1,6 @@
 import { expect } from 'chai'
 import sinon from 'sinon'
-import csv from '@/csv'
+import csv from '@/components/CsvImport/csv'
 import Papa from 'papaparse'
 
 describe('csv.js', () => {
@@ -11,18 +11,18 @@ describe('csv.js', () => {
   it('getResult with fields', () => {
     const source = {
       data: [
-        { id: 1, name: 'foo' },
-        { id: 2, name: 'bar' }
+        { id: 1, 'name ': 'foo', date: new Date('2021-06-30T14:10:24.717Z') },
+        { id: 2, 'name ': 'bar', date: new Date('2021-07-30T14:10:15.717Z') }
       ],
       meta: {
-        fields: ['id', 'name']
+        fields: ['id', 'name ', 'date']
       }
     }
     expect(csv.getResult(source)).to.eql({
-      columns: ['id', 'name'],
+      columns: ['id', 'name', 'date'],
       values: [
-        [1, 'foo'],
-        [2, 'bar']
+        [1, 'foo', '2021-06-30T14:10:24.717Z'],
+        [2, 'bar', '2021-07-30T14:10:15.717Z']
       ]
     })
   })
@@ -30,16 +30,16 @@ describe('csv.js', () => {
   it('getResult without fields', () => {
     const source = {
       data: [
-        [1, 'foo'],
-        [2, 'bar']
+        [1, 'foo', new Date('2021-06-30T14:10:24.717Z')],
+        [2, 'bar', new Date('2021-07-30T14:10:15.717Z')]
       ],
       meta: {}
     }
     expect(csv.getResult(source)).to.eql({
-      columns: ['col1', 'col2'],
+      columns: ['col1', 'col2', 'col3'],
       values: [
-        [1, 'foo'],
-        [2, 'bar']
+        [1, 'foo', '2021-06-30T14:10:24.717Z'],
+        [2, 'bar', '2021-07-30T14:10:15.717Z']
       ]
     })
   })

tests/components/DbUploader.spec.js

@@ -2,38 +2,41 @@ import { expect } from 'chai'
 import sinon from 'sinon'
 import Vuex from 'vuex'
 import { shallowMount, mount } from '@vue/test-utils'
-import DbUploader from '@/components/DbUploader.vue'
-import fu from '@/file.utils'
-import database from '@/database'
-import csv from '@/csv'
+import DbUploader from '@/components/DbUploader'
+import fu from '@/lib/utils/fileIo'
+import database from '@/lib/database'
 
 describe('DbUploader.vue', () => {
   let state = {}
   let mutations = {}
   let store = {}
+  let place
 
   beforeEach(() => {
     // mock store state and mutations
     state = {}
     mutations = {
-      saveSchema: sinon.stub()
+      setDb: sinon.stub()
     }
     store = new Vuex.Store({ state, mutations })
+
+    place = document.createElement('div')
+    document.body.appendChild(place)
   })
 
   afterEach(() => {
     sinon.restore()
+    place.remove()
   })
 
   it('loads db on click and redirects to /editor', async () => {
     // mock getting a file from user
-    const file = {}
+    const file = { name: 'test.db' }
     sinon.stub(fu, 'getFileFromUser').resolves(file)
 
     // mock db loading
-    const schema = {}
     const db = {
-      loadDb: sinon.stub().resolves(schema)
+      loadDb: sinon.stub().resolves()
     }
     sinon.stub(database, 'getNewDatabase').returns(db)
 
@@ -43,22 +46,27 @@ describe('DbUploader.vue', () => {
 
     // mount the component
     const wrapper = shallowMount(DbUploader, {
+      attachTo: place,
       store,
-      mocks: { $router, $route }
+      mocks: { $router, $route },
+      propsData: {
+        type: 'illustrated'
+      }
     })
 
     await wrapper.find('.drop-area').trigger('click')
     expect(db.loadDb.calledOnceWith(file)).to.equal(true)
     await db.loadDb.returnValues[0]
-    expect(mutations.saveSchema.calledOnceWith(state, schema)).to.equal(true)
+    await wrapper.vm.animationPromise
+    await wrapper.vm.$nextTick()
     expect($router.push.calledOnceWith('/editor')).to.equal(true)
+    wrapper.destroy()
   })
 
   it('loads db on drop and redirects to /editor', async () => {
     // mock db loading
-    const schema = {}
     const db = {
-      loadDb: sinon.stub().resolves(schema)
+      loadDb: sinon.stub().resolves()
     }
     sinon.stub(database, 'getNewDatabase').returns(db)
 
@@ -68,12 +76,16 @@ describe('DbUploader.vue', () => {
 
     // mount the component
     const wrapper = shallowMount(DbUploader, {
+      attachTo: place,
       store,
-      mocks: { $router, $route }
+      mocks: { $router, $route },
+      propsData: {
+        type: 'illustrated'
+      }
     })
 
     // mock a file dropped by a user
-    const file = {}
+    const file = { name: 'test.db' }
     const dropData = { dataTransfer: new DataTransfer() }
     Object.defineProperty(dropData.dataTransfer, 'files', {
       value: [file],
@@ -83,19 +95,20 @@ describe('DbUploader.vue', () => {
     await wrapper.find('.drop-area').trigger('drop', dropData)
     expect(db.loadDb.calledOnceWith(file)).to.equal(true)
     await db.loadDb.returnValues[0]
-    expect(mutations.saveSchema.calledOnceWith(state, schema)).to.equal(true)
+    await wrapper.vm.animationPromise
+    await wrapper.vm.$nextTick()
     expect($router.push.calledOnceWith('/editor')).to.equal(true)
+    wrapper.destroy()
   })
 
   it("doesn't redirect if already on /editor", async () => {
     // mock getting a file from user
-    const file = {}
+    const file = { name: 'test.db' }
     sinon.stub(fu, 'getFileFromUser').resolves(file)
 
     // mock db loading
-    const schema = {}
     const db = {
-      loadDb: sinon.stub().resolves(schema)
+      loadDb: sinon.stub().resolves()
     }
     sinon.stub(database, 'getNewDatabase').returns(db)
 
@@ -105,732 +118,82 @@ describe('DbUploader.vue', () => {
 
     // mount the component
     const wrapper = shallowMount(DbUploader, {
+      attachTo: place,
       store,
-      mocks: { $router, $route }
+      mocks: { $router, $route },
+      propsData: {
+        type: 'illustrated'
+      }
     })
 
     await wrapper.find('.drop-area').trigger('click')
     await db.loadDb.returnValues[0]
+    await wrapper.vm.animationPromise
+    await wrapper.vm.$nextTick()
     expect($router.push.called).to.equal(false)
-  })
-})
-
-describe('DbUploader.vue import CSV', () => {
-  let state = {}
-  let mutations = {}
-  let actions = {}
-  const newTabId = 1
-  let store = {}
-
-  // mock router
-  const $router = { }
-  const $route = { path: '/' }
-
-  let clock
-  let wrapper
-
-  beforeEach(() => {
-    // mock getting a file from user
-    sinon.stub(fu, 'getFileFromUser').resolves({ type: 'text/csv' })
-
-    clock = sinon.useFakeTimers()
-
-    // mock store state and mutations
-    state = {}
-    mutations = {
-      saveSchema: sinon.stub(),
-      setDb: sinon.stub(),
-      setCurrentTabId: sinon.stub()
-    }
-    actions = {
-      addTab: sinon.stub().resolves(newTabId)
-    }
-    store = new Vuex.Store({ state, mutations, actions })
-
-    $router.push = sinon.stub()
-
-    // mount the component
-    wrapper = mount(DbUploader, {
-      store,
-      mocks: { $router, $route }
-    })
-  })
-
-  afterEach(() => {
-    sinon.restore()
+    wrapper.destroy()
   })
 
   it('shows parse dialog if gets csv file', async () => {
-    sinon.stub(csv, 'parse').resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      messages: [{
-        code: 'UndetectableDelimiter',
-        message: 'Comma was used as a standart delimiter',
-        row: 0,
-        type: 'info',
-        hint: undefined
-      }]
-    })
+    // mock getting a file from user
+    const file = { name: 'test.csv' }
+    sinon.stub(fu, 'getFileFromUser').resolves(file)
 
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-    expect(wrapper.find('[data-modal="parse"]').exists()).to.equal(true)
-    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.value).to.equal('|')
-    expect(wrapper.find('#quote-char input').element.value).to.equal('"')
-    expect(wrapper.find('#escape-char input').element.value).to.equal('"')
-    expect(wrapper.findComponent({ name: 'check-box' }).vm.checked).to.equal(true)
-    const rows = wrapper.findAll('tbody tr')
-    expect(rows).to.have.lengthOf(2)
-    expect(rows.at(0).findAll('td').at(0).text()).to.equal('1')
-    expect(rows.at(0).findAll('td').at(1).text()).to.equal('foo')
-    expect(rows.at(1).findAll('td').at(0).text()).to.equal('2')
-    expect(rows.at(1).findAll('td').at(1).text()).to.equal('bar')
-    expect(wrapper.findComponent({ name: 'logs' }).text())
-      .to.include('Information about row 0. Comma was used as a standart delimiter.')
-    expect(wrapper.findComponent({ name: 'logs' }).text())
-      .to.include('Preview parsing is completed in')
-    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
-    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
-  })
+    // mock router
+    const $router = { push: sinon.stub() }
+    const $route = { path: '/editor' }
 
-  it('reparses when parameters changes', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
+    // mount the component
+    const wrapper = mount(DbUploader, {
+      attachTo: place,
+      store,
+      mocks: { $router, $route },
+      propsData: {
+        type: 'illustrated'
       }
     })
 
+    const CsvImport = wrapper.vm.$refs.addCsv
+    sinon.stub(CsvImport, 'reset')
+    sinon.stub(CsvImport, 'previewCsv').resolves()
+    sinon.stub(CsvImport, 'open')
+
     await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
     await wrapper.vm.$nextTick()
-
-    parse.onCall(1).resolves({
-      delimiter: ',',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [2, 'bar']
-        ]
-      },
-      hasErrors: false
-    })
-    await wrapper.find('.delimiter-selector-container input').setValue(',')
-    expect(parse.callCount).to.equal(2)
-    await csv.parse.returnValues[1]
-
-    let rows = wrapper.findAll('tbody tr')
-    expect(rows).to.have.lengthOf(1)
-    expect(rows.at(0).findAll('td').at(0).text()).to.equal('2')
-    expect(rows.at(0).findAll('td').at(1).text()).to.equal('bar')
-    expect(wrapper.findComponent({ name: 'logs' }).text())
-      .to.include('Preview parsing is completed in')
-
-    parse.onCall(2).resolves({
-      delimiter: ',',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [3, 'baz']
-        ]
-      },
-      hasErrors: true,
-      messages: [{
-        code: 'MissingQuotes',
-        message: 'Quote is missed',
-        row: 0,
-        type: 'error',
-        hint: 'Edit your CSV so that the field has a closing quote char.'
-      }]
-    })
-
-    await wrapper.find('#quote-char input').setValue("'")
-    expect(parse.callCount).to.equal(3)
-    await csv.parse.returnValues[2]
-    rows = wrapper.findAll('tbody tr')
-    expect(rows).to.have.lengthOf(1)
-    expect(rows.at(0).findAll('td').at(0).text()).to.equal('3')
-    expect(rows.at(0).findAll('td').at(1).text()).to.equal('baz')
-    expect(wrapper.findComponent({ name: 'logs' }).text())
-      .to.contain('Error in row 0. Quote is missed. Edit your CSV so that the field has a closing quote char.')
-    expect(wrapper.findComponent({ name: 'logs' }).text())
-      .to.not.contain('Preview parsing is completed in')
-
-    parse.onCall(3).resolves({
-      delimiter: ',',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [4, 'qux']
-        ]
-      },
-      hasErrors: false
-    })
-    await wrapper.find('#escape-char input').setValue("'")
-    expect(parse.callCount).to.equal(4)
-    await csv.parse.returnValues[3]
-    rows = wrapper.findAll('tbody tr')
-    expect(rows).to.have.lengthOf(1)
-    expect(rows.at(0).findAll('td').at(0).text()).to.equal('4')
-    expect(rows.at(0).findAll('td').at(1).text()).to.equal('qux')
-    expect(wrapper.findComponent({ name: 'logs' }).text())
-      .to.contain('Preview parsing is completed in')
-
-    parse.onCall(4).resolves({
-      delimiter: ',',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [5, 'corge']
-        ]
-      },
-      hasErrors: false
-    })
-    await wrapper.findComponent({ name: 'check-box' }).trigger('click')
-    expect(parse.callCount).to.equal(5)
-    await csv.parse.returnValues[4]
-    rows = wrapper.findAll('tbody tr')
-    expect(rows).to.have.lengthOf(1)
-    expect(rows.at(0).findAll('td').at(0).text()).to.equal('5')
-    expect(rows.at(0).findAll('td').at(1).text()).to.equal('corge')
-    expect(wrapper.findComponent({ name: 'logs' }).text())
-      .to.include('Preview parsing is completed in')
+    expect(CsvImport.reset.calledOnce).to.equal(true)
+    await wrapper.vm.animationPromise
+    expect(CsvImport.previewCsv.calledOnce).to.equal(true)
+    await wrapper.vm.$nextTick()
+    expect(CsvImport.open.calledOnce).to.equal(true)
+    wrapper.destroy()
   })
 
-  it('has proper state before parsing is complete', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
+  it('deletes temporary db if CSV import is canceled', async () => {
+    // mock getting a file from user
+    const file = { name: 'test.csv' }
+    sinon.stub(fu, 'getFileFromUser').resolves(file)
+
+    // mock router
+    const $router = { push: sinon.stub() }
+    const $route = { path: '/editor' }
+
+    // mount the component
+    const wrapper = mount(DbUploader, {
+      store,
+      mocks: { $router, $route },
+      propsData: {
+        type: 'illustrated'
       }
     })
 
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-
-    let resolveParsing
-    parse.onCall(1).returns(new Promise(resolve => {
-      resolveParsing = resolve
-    }))
-    await wrapper.find('#csv-import').trigger('click')
-
-    // "Parsing CSV..." in the logs
-    expect(wrapper.findComponent({ name: 'logs' }).findAll('.msg').at(1).text())
-      .to.equal('Parsing CSV...')
-
-    // After 1 second - loading indicator is shown
-    await clock.tick(1000)
-    expect(
-      wrapper.findComponent({ name: 'logs' }).findComponent({ name: 'LoadingIndicator' }).exists()
-    ).to.equal(true)
-
-    // All the dialog controls are disabled
-    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#quote-char input').element.disabled).to.equal(true)
-    expect(wrapper.find('#escape-char input').element.disabled).to.equal(true)
-    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(true)
-    expect(wrapper.find('#csv-finish').element.disabled).to.equal(true)
-    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
-    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
-    await resolveParsing()
-    await parse.returnValues[1]
-
-    // Loading indicator is not shown when parsing is compete
-    expect(
-      wrapper.findComponent({ name: 'logs' }).findComponent({ name: 'LoadingIndicator' }).exists()
-    ).to.equal(false)
-  })
-
-  it('parsing is completed successfully', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    parse.onCall(1).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
+    const CsvImport = wrapper.vm.$refs.addCsv
+    sinon.stub(CsvImport, 'reset')
+    sinon.stub(CsvImport, 'previewCsv').resolves()
+    sinon.stub(CsvImport, 'open')
 
     await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
     await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-import').trigger('click')
-    await csv.parse.returnValues[1]
-    await wrapper.vm.$nextTick()
-
-    // Parsing success in the logs
-    expect(wrapper.findComponent({ name: 'logs' }).findAll('.msg').at(1).text())
-      .to.include('2 rows are parsed successfully in')
-
-    // All the dialog controls are disabled
-    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#quote-char input').element.disabled).to.equal(true)
-    expect(wrapper.find('#escape-char input').element.disabled).to.equal(true)
-    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(true)
-    expect(wrapper.find('#csv-finish').element.disabled).to.equal(true)
-    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
-    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
-  })
-
-  it('parsing is completed with notes', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    parse.onCall(1).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      hasErrors: false,
-      messages: [{
-        code: 'UndetectableDelimiter',
-        message: 'Comma was used as a standart delimiter',
-        type: 'info',
-        hint: undefined
-      }]
-    })
-
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-import').trigger('click')
-    await csv.parse.returnValues[1]
-    await wrapper.vm.$nextTick()
-
-    // Parsing success in the logs
-    const logs = wrapper.findComponent({ name: 'logs' }).findAll('.msg')
-    expect(logs).to.have.lengthOf(4)
-    expect(logs.at(1).text()).to.include('2 rows are parsed in')
-    expect(logs.at(2).text()).to.equals('Comma was used as a standart delimiter.')
-
-    // All the dialog controls are disabled
-    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#quote-char input').element.disabled).to.equal(true)
-    expect(wrapper.find('#escape-char input').element.disabled).to.equal(true)
-    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(true)
-    expect(wrapper.find('#csv-finish').element.disabled).to.equal(true)
-    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
-    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
-  })
-
-  it('parsing is completed with errors', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    parse.onCall(1).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      hasErrors: true,
-      messages: [{
-        code: 'Error',
-        message: 'Something is wrong',
-        type: 'error',
-        hint: undefined
-      }]
-    })
-
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-import').trigger('click')
-    await csv.parse.returnValues[1]
-    await wrapper.vm.$nextTick()
-
-    // Parsing success in the logs
-    const logs = wrapper.findComponent({ name: 'logs' }).findAll('.msg')
-    expect(logs).to.have.lengthOf(3)
-    expect(logs.at(1).text()).to.include('Parsing ended with errors.')
-    expect(logs.at(2).text()).to.equals('Something is wrong.')
-
-    // All the dialog controls are enabled
-    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#quote-char input').element.disabled).to.equal(false)
-    expect(wrapper.find('#escape-char input').element.disabled).to.equal(false)
-    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(false)
-    expect(wrapper.find('#csv-finish').element.disabled).to.equal(false)
-    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
-    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
-  })
-
-  it('has proper state before import is completed', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    parse.onCall(1).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    let resolveImport = sinon.stub()
-    const newDb = {
-      createDb: sinon.stub().resolves(new Promise(resolve => { resolveImport = resolve })),
-      createProgressCounter: sinon.stub().returns(1)
-    }
-    sinon.stub(database, 'getNewDatabase').returns(newDb)
-
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-import').trigger('click')
-    await csv.parse.returnValues[1]
-    await wrapper.vm.$nextTick()
-
-    // Parsing success in the logs
-    expect(wrapper.findComponent({ name: 'logs' }).findAll('.msg').at(2).text())
-      .to.equal('Importing CSV into a SQLite database...')
-
-    // After 1 second - loading indicator is shown
-    await clock.tick(1000)
-    expect(
-      wrapper.findComponent({ name: 'logs' }).findComponent({ name: 'LoadingIndicator' }).exists()
-    ).to.equal(true)
-
-    // All the dialog controls are disabled
-    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#quote-char input').element.disabled).to.equal(true)
-    expect(wrapper.find('#escape-char input').element.disabled).to.equal(true)
-    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(true)
-    expect(wrapper.find('#csv-finish').element.disabled).to.equal(true)
-    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(true)
-    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
-    expect(wrapper.find('#csv-import').isVisible()).to.equal(true)
-
-    // After resolving - loading indicator is not shown
-    await resolveImport()
-    await newDb.createDb.returnValues[0]
-    expect(
-      wrapper.findComponent({ name: 'logs' }).findComponent({ name: 'LoadingIndicator' }).exists()
-    ).to.equal(false)
-  })
-
-  it('import success', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    parse.onCall(1).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    const schema = {}
-    const newDb = {
-      createDb: sinon.stub().resolves(schema),
-      createProgressCounter: sinon.stub().returns(1),
-      deleteProgressCounter: sinon.stub()
-    }
-    sinon.stub(database, 'getNewDatabase').returns(newDb)
-
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-import').trigger('click')
-    await csv.parse.returnValues[1]
-    await wrapper.vm.$nextTick()
-
-    // Import success in the logs
-    const logs = wrapper.findComponent({ name: 'logs' }).findAll('.msg')
-    expect(logs).to.have.lengthOf(3)
-    expect(logs.at(2).text()).to.contain('Importing CSV into a SQLite database is completed in')
-
-    // All the dialog controls are enabled
-    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#quote-char input').element.disabled).to.equal(false)
-    expect(wrapper.find('#escape-char input').element.disabled).to.equal(false)
-    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(false)
-    expect(wrapper.find('#csv-finish').element.disabled).to.equal(false)
-    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#csv-finish').isVisible()).to.equal(true)
-  })
-
-  it('import fails', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    parse.onCall(1).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    const newDb = {
-      createDb: sinon.stub().rejects(new Error('fail')),
-      createProgressCounter: sinon.stub().returns(1),
-      deleteProgressCounter: sinon.stub()
-    }
-    sinon.stub(database, 'getNewDatabase').returns(newDb)
-
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-import').trigger('click')
-    await csv.parse.returnValues[1]
-    await wrapper.vm.$nextTick()
-
-    // Import success in the logs
-    const logs = wrapper.findComponent({ name: 'logs' }).findAll('.msg')
-    expect(logs).to.have.lengthOf(4)
-    expect(logs.at(2).text()).to.contain('Importing CSV into a SQLite database...')
-    expect(logs.at(3).text()).to.equal('Error: fail.')
-
-    // All the dialog controls are enabled
-    expect(wrapper.findComponent({ name: 'delimiter-selector' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#quote-char input').element.disabled).to.equal(false)
-    expect(wrapper.find('#escape-char input').element.disabled).to.equal(false)
-    expect(wrapper.findComponent({ name: 'check-box' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#csv-cancel').element.disabled).to.equal(false)
-    expect(wrapper.find('#csv-finish').element.disabled).to.equal(false)
-    expect(wrapper.findComponent({ name: 'close-icon' }).vm.disabled).to.equal(false)
-    expect(wrapper.find('#csv-finish').isVisible()).to.equal(false)
-  })
-
-  it('import final', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    parse.onCall(1).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    const schema = {}
-    const newDb = {
-      createDb: sinon.stub().resolves(schema),
-      createProgressCounter: sinon.stub().returns(1),
-      deleteProgressCounter: sinon.stub()
-    }
-    sinon.stub(database, 'getNewDatabase').returns(newDb)
-
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-import').trigger('click')
-    await csv.parse.returnValues[1]
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-finish').trigger('click')
-
-    expect(mutations.setDb.calledOnceWith(state, newDb)).to.equal(true)
-    expect(mutations.saveSchema.calledOnceWith(state, schema)).to.equal(true)
-    expect(actions.addTab.calledOnce).to.equal(true)
-    await actions.addTab.returnValues[0]
-    expect(mutations.setCurrentTabId.calledOnceWith(state, newTabId)).to.equal(true)
-    expect($router.push.calledOnceWith('/editor')).to.equal(true)
-    expect(wrapper.find('[data-modal="parse"]').exists()).to.equal(false)
-  })
-
-  it('import cancel', async () => {
-    const parse = sinon.stub(csv, 'parse')
-    parse.onCall(0).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    parse.onCall(1).resolves({
-      delimiter: '|',
-      data: {
-        columns: ['col1', 'col2'],
-        values: [
-          [1, 'foo'],
-          [2, 'bar']
-        ]
-      },
-      hasErrors: false,
-      messages: []
-    })
-
-    const schema = {}
-    const newDb = {
-      createDb: sinon.stub().resolves(schema),
-      createProgressCounter: sinon.stub().returns(1),
-      deleteProgressCounter: sinon.stub()
-    }
-    sinon.stub(database, 'getNewDatabase').returns(newDb)
-
-    await wrapper.find('.drop-area').trigger('click')
-    await csv.parse.returnValues[0]
-    await wrapper.vm.animationPromise
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-import').trigger('click')
-    await csv.parse.returnValues[1]
-    await wrapper.vm.$nextTick()
-
-    await wrapper.find('#csv-cancel').trigger('click')
-
-    expect(mutations.setDb.called).to.equal(false)
-    expect(mutations.saveSchema.called).to.equal(false)
-    expect(actions.addTab.called).to.equal(false)
-    expect(mutations.setCurrentTabId.called).to.equal(false)
-    expect($router.push.called).to.equal(false)
-    expect(wrapper.find('[data-modal="parse"]').exists()).to.equal(false)
+    await CsvImport.$emit('cancel')
+    expect(wrapper.vm.newDb).to.equal(null)
   })
 })

tests/components/LoadingIndicator.spec.js

@@ -1,6 +1,6 @@
 import { expect } from 'chai'
 import { shallowMount } from '@vue/test-utils'
-import LoadingIndicator from '@/components/LoadingIndicator.vue'
+import LoadingIndicator from '@/components/LoadingIndicator'
 
 describe('LoadingIndicator.vue', () => {
   it('Calculates animation class', async () => {
@@ -19,6 +19,6 @@ describe('LoadingIndicator.vue', () => {
     })
     // The lendth of circle in the component is 50.24. If progress is 50% then resulting arc
     // should be 25.12
-    expect(wrapper.find('.loader-svg.front').element.style.strokeDasharray).to.equal('25.12, 25.12')
+    expect(wrapper.find('.loader-svg.front').element.style.strokeDasharray).to.equal('25.12px, 25.12px')
   })
 })

tests/components/Logs.spec.js

@@ -1,6 +1,6 @@
 import { expect } from 'chai'
 import { shallowMount } from '@vue/test-utils'
-import Logs from '@/components/Logs.vue'
+import Logs from '@/components/Logs'
 
 let place
 describe('Logs.vue', () => {

tests/components/Schema.spec.js

@@ -1,101 +0,0 @@
-import { expect } from 'chai'
-import sinon from 'sinon'
-import { mount, createLocalVue } from '@vue/test-utils'
-import Vuex from 'vuex'
-import Schema from '@/components/Schema.vue'
-import TableDescription from '@/components/TableDescription.vue'
-
-const localVue = createLocalVue()
-localVue.use(Vuex)
-
-describe('Schema.vue', () => {
-  afterEach(() => {
-    sinon.restore()
-  })
-
-  it('Renders DB name on initial', () => {
-    // mock store state
-    const state = {
-      dbName: 'fooDB'
-    }
-    const store = new Vuex.Store({ state })
-
-    // mout the component
-    const wrapper = mount(Schema, { store, localVue })
-
-    // check DB name and schema visibility
-    expect(wrapper.find('.db-name').text()).to.equal('fooDB')
-    expect(wrapper.find('.schema').isVisible()).to.equal(true)
-  })
-
-  it('Schema visibility is toggled when click on DB name', async () => {
-    // mock store state
-    const state = {
-      dbName: 'fooDB'
-    }
-    const store = new Vuex.Store({ state })
-
-    // mout the component
-    const wrapper = mount(Schema, { store, localVue })
-
-    // click and check visibility
-    await wrapper.find('.db-name').trigger('click')
-    expect(wrapper.find('.schema').isVisible()).to.equal(false)
-    await wrapper.find('.db-name').trigger('click')
-    expect(wrapper.find('.schema').isVisible()).to.equal(true)
-  })
-
-  it('Schema filter', async () => {
-    // mock store state
-    const state = {
-      dbName: 'fooDB',
-      schema: [
-        {
-          name: 'foo',
-          columns: [
-            { name: 'id', type: 'INTEGER' },
-            { name: 'title', type: 'NVARCHAR(24)' }
-          ]
-        },
-        {
-          name: 'bar',
-          columns: [
-            { name: 'id', type: 'INTEGER' },
-            { name: 'price', type: 'INTEGER' }
-          ]
-        },
-        {
-          name: 'foobar',
-          columns: [
-            { name: 'id', type: 'INTEGER' },
-            { name: 'price', type: 'INTEGER' }
-          ]
-        }
-      ]
-    }
-    const store = new Vuex.Store({ state })
-
-    // mount the component
-    const wrapper = mount(Schema, { store, localVue })
-
-    // apply filters and check the list of tables
-    await wrapper.find('#schema-filter input').setValue('foo')
-    let tables = wrapper.findAllComponents(TableDescription)
-    expect(tables).to.have.lengthOf(2)
-    expect(tables.at(0).vm.name).to.equal('foo')
-    expect(tables.at(1).vm.name).to.equal('foobar')
-
-    await wrapper.find('#schema-filter input').setValue('bar')
-    tables = wrapper.findAllComponents(TableDescription)
-    expect(tables).to.have.lengthOf(2)
-    expect(tables.at(0).vm.name).to.equal('bar')
-    expect(tables.at(1).vm.name).to.equal('foobar')
-
-    await wrapper.find('#schema-filter input').setValue('')
-    tables = wrapper.findAllComponents(TableDescription)
-    expect(tables).to.have.lengthOf(3)
-    expect(tables.at(0).vm.name).to.equal('foo')
-    expect(tables.at(1).vm.name).to.equal('bar')
-    expect(tables.at(2).vm.name).to.equal('foobar')
-  })
-})

tests/components/Splitpanes/Splitpanes.spec.js

@@ -1,6 +1,6 @@
 import { expect } from 'chai'
 import { shallowMount } from '@vue/test-utils'
-import Splitpanes from '@/components/Splitpanes.vue'
+import Splitpanes from '@/components/Splitpanes'
 
 describe('Splitpanes.vue', () => {
   it('renders correctly - vertical', () => {

tests/components/Splitpanes/splitter.spec.js

@@ -1,6 +1,6 @@
 import { expect } from 'chai'
 import sinon from 'sinon'
-import splitter from '@/splitter'
+import splitter from '@/components/Splitpanes/splitter'
 
 describe('splitter.js', () => {
   afterEach(() => {

tests/components/SqlTable/Pager.spec.js

@@ -1,7 +1,7 @@
 import { expect } from 'chai'
 import sinon from 'sinon'
 import { mount } from '@vue/test-utils'
-import Pager from '@/components/Pager.vue'
+import Pager from '@/components/SqlTable/Pager'
 
 describe('Pager.vue', () => {
   afterEach(() => {

tests/db.utils.spec.js

@@ -1,34 +0,0 @@
-import { expect } from 'chai'
-import dbUtils from '@/db.utils'
-
-describe('db.utils.js', () => {
-  it('generateChunks', () => {
-    const arr = ['1', '2', '3', '4', '5']
-    const size = 2
-    const chunks = dbUtils.generateChunks(arr, size)
-    const output = []
-    for (const chunk of chunks) {
-      output.push(chunk)
-    }
-    expect(output[0]).to.eql(['1', '2'])
-    expect(output[1]).to.eql(['3', '4'])
-    expect(output[2]).to.eql(['5'])
-  })
-
-  it('getInsertStmt', () => {
-    const columns = ['id', 'name']
-    expect(dbUtils.getInsertStmt(columns))
-      .to.equal('INSERT INTO csv_import ("id", "name") VALUES (?, ?);')
-  })
-
-  it('getCreateStatement', () => {
-    const columns = ['id', 'name', 'isAdmin', 'startDate']
-    const values = [
-      [1, 'foo', true, new Date()],
-      [2, 'bar', false, new Date()]
-    ]
-    expect(dbUtils.getCreateStatement(columns, values)).to.equal(
-      'CREATE table csv_import("id" REAL, "name" TEXT, "isAdmin" INTEGER, "startDate" TEXT);'
-    )
-  })
-})

tests/lib/database/_sql.spec.js

@@ -2,14 +2,14 @@ import chai from 'chai'
 import sinon from 'sinon'
 import chaiAsPromised from 'chai-as-promised'
 import initSqlJs from 'sql.js'
-import Sql from '@/sql'
+import Sql from '@/lib/database/_sql'
 chai.use(chaiAsPromised)
 const expect = chai.expect
 chai.should()
 
 const getSQL = initSqlJs()
 
-describe('sql.js', () => {
+describe('_sql.js', () => {
   afterEach(() => {
     sinon.restore()
   })
@@ -74,8 +74,8 @@ describe('sql.js', () => {
     const progressCallback = sinon.stub()
     const progressCounterId = 1
     const sql = await Sql.build()
-    sql.import(data.columns, data.values, progressCounterId, progressCallback, 2)
-    const result = sql.exec('SELECT * from csv_import')
+    sql.import('foo', data.columns, data.values, progressCounterId, progressCallback, 2)
+    const result = sql.exec('SELECT * from foo')
     expect(result).to.have.lengthOf(1)
     expect(result[0].columns).to.eql(['id', 'name'])
     expect(result[0].values).to.have.lengthOf(4)
@@ -135,7 +135,7 @@ describe('sql.js', () => {
     expect(sql.db.db).to.equal(null)
   })
 
-  it('overwrites', async () => {
+  it('adds', async () => {
     const sql = await Sql.build()
     sql.exec(`
       CREATE TABLE test (
@@ -160,12 +160,11 @@ describe('sql.js', () => {
         [4, 'Ron Weasley']
       ]
     }
-    // rewrite the database by import
-    sql.import(data.columns, data.values, 1, sinon.stub(), 2)
-    result = sql.exec('SELECT * from csv_import')
+    // import adds table
+    sql.import('foo', data.columns, data.values, 1, sinon.stub(), 2)
+    result = sql.exec('SELECT * from foo')
     expect(result[0].values).to.have.lengthOf(4)
-
-    // test table oesn't exists anymore: the db was overwritten
-    expect(() => { sql.exec('SELECT * from test') }).to.throw('no such table: test')
+    result = sql.exec('SELECT * from test')
+    expect(result[0].values).to.have.lengthOf(2)
   })
 })

tests/lib/database/_statements.spec.js

@@ -0,0 +1,62 @@
+import { expect } from 'chai'
+import stmts from '@/lib/database/_statements'
+
+describe('_statements.js', () => {
+  it('generateChunks', () => {
+    const arr = ['1', '2', '3', '4', '5']
+    const size = 2
+    const chunks = stmts.generateChunks(arr, size)
+    const output = []
+    for (const chunk of chunks) {
+      output.push(chunk)
+    }
+    expect(output[0]).to.eql(['1', '2'])
+    expect(output[1]).to.eql(['3', '4'])
+    expect(output[2]).to.eql(['5'])
+  })
+
+  it('getInsertStmt', () => {
+    const columns = ['id', 'name']
+    expect(stmts.getInsertStmt('foo', columns))
+      .to.equal('INSERT INTO "foo" ("id", "name") VALUES (?, ?);')
+  })
+
+  it('getCreateStatement', () => {
+    const columns = ['id', 'name', 'isAdmin', 'startDate']
+    const values = [
+      [1, 'foo', true, new Date()],
+      [2, 'bar', false, new Date()]
+    ]
+    expect(stmts.getCreateStatement('foo', columns, values)).to.equal(
+      'CREATE table "foo"("id" REAL, "name" TEXT, "isAdmin" INTEGER, "startDate" TEXT);'
+    )
+  })
+
+  it('getColumns', () => {
+    const sql = `CREATE TABLE test (
+      col1,
+      col2 integer,
+      col3 decimal(5,2),
+      col4 varchar(30)
+    )`
+    expect(stmts.getColumns(sql)).to.eql([
+      { name: 'col1', type: 'N/A' },
+      { name: 'col2', type: 'integer' },
+      { name: 'col3', type: 'decimal(5, 2)' },
+      { name: 'col4', type: 'varchar(30)' }
+    ])
+  })
+
+  it('getColumns with virtual table', async () => {
+    const sql = `
+      CREATE VIRTUAL TABLE test_virtual USING fts4(
+        col1, col2,
+        notindexed=col1, notindexed=col2,
+        tokenize=unicode61 "tokenchars=.+#")
+    `
+    expect(stmts.getColumns(sql)).to.eql([
+      { name: 'col1', type: 'N/A' },
+      { name: 'col2', type: 'N/A' }
+    ])
+  })
+})

tests/lib/database/database.spec.js

@@ -2,7 +2,9 @@ import chai from 'chai'
 import sinon from 'sinon'
 import chaiAsPromised from 'chai-as-promised'
 import initSqlJs from 'sql.js'
-import database from '@/database.js'
+import database from '@/lib/database'
+import fu from '@/lib/utils/fileIo'
+
 chai.use(chaiAsPromised)
 const expect = chai.expect
 chai.should()
@@ -25,55 +27,40 @@ describe('database.js', () => {
     const tempDb = new SQL.Database()
     tempDb.run(`CREATE TABLE test (
       col1,
-      col2 integer,
-      col3 decimal(5,2),
-      col4 varchar(30)
+      col2 integer
     )`)
 
     const data = tempDb.export()
     const buffer = new Blob([data])
+    buffer.name = 'foo.sqlite'
 
-    const { schema } = await db.loadDb(buffer)
+    sinon.spy(db, 'refreshSchema')
+
+    await db.loadDb(buffer)
+    await db.refreshSchema.returnValues[0]
+    const schema = db.schema
+    expect(db.dbName).to.equal('foo')
     expect(schema).to.have.lengthOf(1)
     expect(schema[0].name).to.equal('test')
+
     expect(schema[0].columns[0].name).to.equal('col1')
     expect(schema[0].columns[0].type).to.equal('N/A')
+
     expect(schema[0].columns[1].name).to.equal('col2')
     expect(schema[0].columns[1].type).to.equal('integer')
-    expect(schema[0].columns[2].name).to.equal('col3')
-    expect(schema[0].columns[2].type).to.equal('decimal(5, 2)')
-    expect(schema[0].columns[3].name).to.equal('col4')
-    expect(schema[0].columns[3].type).to.equal('varchar(30)')
   })
 
-  it('creates schema with virtual table', async () => {
-    const SQL = await getSQL
-    const tempDb = new SQL.Database()
-    tempDb.run(`
-      CREATE VIRTUAL TABLE test_virtual USING fts4(
-        col1, col2,
-        notindexed=col1, notindexed=col2,
-        tokenize=unicode61 "tokenchars=.+#")
-    `)
+  it('creates empty db with name database', async () => {
+    sinon.spy(db, 'refreshSchema')
 
-    const data = tempDb.export()
-    const buffer = new Blob([data])
-
-    const { schema } = await db.loadDb(buffer)
-    expect(schema[0].name).to.equal('test_virtual')
-    expect(schema[0].columns[0].name).to.equal('col1')
-    expect(schema[0].columns[0].type).to.equal('N/A')
-    expect(schema[0].columns[1].name).to.equal('col2')
-    expect(schema[0].columns[1].type).to.equal('N/A')
+    await db.loadDb()
+    await db.refreshSchema.returnValues[0]
+    expect(db.dbName).to.equal('database')
   })
 
   it('loadDb throws errors', async () => {
-    const SQL = await getSQL
-    const tempDb = new SQL.Database()
-    tempDb.run('CREATE TABLE test (col1, col2)')
-
-    const data = tempDb.export()
-    const buffer = new Blob([data])
+    const buffer = new Blob([])
+    buffer.name = 'foo.sqlite'
 
     sinon.stub(db.pw, 'postMessage').resolves({ error: new Error('foo') })
 
@@ -97,6 +84,7 @@ describe('database.js', () => {
 
     const data = tempDb.export()
     const buffer = new Blob([data])
+    buffer.name = 'foo.sqlite'
 
     await db.loadDb(buffer)
     const result = await db.execute('SELECT * from test limit 1; SELECT * from test;')
@@ -124,11 +112,12 @@ describe('database.js', () => {
 
     const data = tempDb.export()
     const buffer = new Blob([data])
+    buffer.name = 'foo.sqlite'
     await db.loadDb(buffer)
     await expect(db.execute('SELECT * from foo')).to.be.rejectedWith(/^no such table: foo$/)
   })
 
-  it('creates db', async () => {
+  it('adds table from csv', async () => {
     const data = {
       columns: ['id', 'name', 'faculty'],
       values: [
@@ -138,16 +127,19 @@ describe('database.js', () => {
     }
     const progressHandler = sinon.spy()
     const progressCounterId = db.createProgressCounter(progressHandler)
-    const { dbName, schema } = await db.createDb('foo', data, progressCounterId)
-    expect(dbName).to.equal('foo')
-    expect(schema).to.have.lengthOf(1)
-    expect(schema[0].name).to.equal('csv_import')
-    expect(schema[0].columns).to.have.lengthOf(3)
-    expect(schema[0].columns[0]).to.eql({ name: 'id', type: 'real' })
-    expect(schema[0].columns[1]).to.eql({ name: 'name', type: 'text' })
-    expect(schema[0].columns[2]).to.eql({ name: 'faculty', type: 'text' })
+    sinon.spy(db, 'refreshSchema')
 
-    const result = await db.execute('SELECT * from csv_import')
+    await db.addTableFromCsv('foo', data, progressCounterId)
+    await db.refreshSchema.returnValues[0]
+    expect(db.dbName).to.equal('database')
+    expect(db.schema).to.have.lengthOf(1)
+    expect(db.schema[0].name).to.equal('foo')
+    expect(db.schema[0].columns).to.have.lengthOf(3)
+    expect(db.schema[0].columns[0]).to.eql({ name: 'id', type: 'real' })
+    expect(db.schema[0].columns[1]).to.eql({ name: 'name', type: 'text' })
+    expect(db.schema[0].columns[2]).to.eql({ name: 'faculty', type: 'text' })
+
+    const result = await db.execute('SELECT * from foo')
     expect(result.columns).to.eql(data.columns)
     expect(result.values).to.eql(data.values)
 
@@ -156,7 +148,7 @@ describe('database.js', () => {
     expect(progressHandler.secondCall.calledWith(100)).to.equal(true)
   })
 
-  it('createDb throws errors', async () => {
+  it('addTableFromCsv throws errors', async () => {
     const data = {
       columns: ['id', 'name'],
       values: [
@@ -166,7 +158,7 @@ describe('database.js', () => {
     }
     const progressHandler = sinon.stub()
     const progressCounterId = db.createProgressCounter(progressHandler)
-    await expect(db.createDb('foo', data, progressCounterId))
+    await expect(db.addTableFromCsv('foo', data, progressCounterId))
       .to.be.rejectedWith('column index out of range')
   })
 
@@ -204,4 +196,53 @@ describe('database.js', () => {
     db.deleteProgressCounter(firstId)
     expect(db.importProgresses[firstId]).to.equal(undefined)
   })
+
+  it('exports db', async () => {
+    sinon.stub(fu, 'exportToFile').resolves()
+
+    // create db with table foo
+    const stmt = `
+      CREATE TABLE foo(id, name);
+      INSERT INTO foo VALUES (1, 'Harry Potter')
+    `
+    let result = await db.execute(stmt)
+
+    // export db to a file
+    await db.export('fooDb.sqlite')
+    expect(fu.exportToFile.called).to.equal(true)
+
+    // get data from export
+    const data = fu.exportToFile.getCall(0).args[0]
+    const file = new Blob([data])
+    file.name = 'fooDb.sqlite'
+
+    // loadDb from exported data
+    const anotherDb = database.getNewDatabase()
+    await anotherDb.loadDb(file)
+
+    // check that new db works and has the same table and data
+    result = await anotherDb.execute('SELECT * from foo')
+    expect(result.columns).to.eql(['id', 'name'])
+    expect(result.values).to.have.lengthOf(1)
+    expect(result.values[0]).to.eql([1, 'Harry Potter'])
+  })
+
+  it('sanitizeTableName', () => {
+    let name = 'foo[]bar'
+    expect(db.sanitizeTableName(name)).to.equal('foo_bar')
+
+    name = '1 foo(01.05.2020)'
+    expect(db.sanitizeTableName(name)).to.equal('_1_foo_01_05_2020_')
+  })
+
+  it('validateTableName', async () => {
+    await db.execute('CREATE TABLE foo(id)')
+    await expect(db.validateTableName('foo')).to.be.rejectedWith('table "foo" already exists')
+    await expect(db.validateTableName('1foo'))
+      .to.be.rejectedWith("Table name can't start with a digit")
+    await expect(db.validateTableName('foo(05.08.2020)'))
+      .to.be.rejectedWith('Table name can contain only letters, digits and underscores')
+    await expect(db.validateTableName('sqlite_foo'))
+      .to.be.rejectedWith("Table name can't start with sqlite_")
+  })
 })

tests/lib/database/sqliteExtensions.spec.js

@@ -0,0 +1,238 @@
+import chai from 'chai'
+import database from '@/lib/database'
+
+const expect = chai.expect
+
+describe('SQLite extensions', function () {
+  let db
+
+  beforeEach(() => {
+    db = database.getNewDatabase()
+  })
+
+  afterEach(() => {
+    db.shutDown()
+  })
+
+  it('supports contrib trigonometric functions', async function () {
+    const actual = await db.execute(`
+      SELECT
+        abs(3.1415926 - pi())       < 0.000001,
+        abs(1 - cos(2 * pi()))      < 0.000001,
+        abs(0 - sin(pi()))          < 0.000001,
+        abs(0 - tan(0))             < 0.000001,
+        abs(0 - cot(pi() / 2))      < 0.000001,
+        abs(1 - acos(cos(1)))       < 0.000001,
+        abs(1 - asin(sin(1)))       < 0.000001,
+        abs(1 - atan(tan(1)))       < 0.000001,
+        abs(1 - cosh(0))            < 0.000001,
+        abs(0 - sinh(0))            < 0.000001,
+        abs(tanh(1) + tanh(-1))     < 0.000001,
+        abs(coth(1) + coth(-1))     < 0.000001,
+        abs(1 - acosh(cosh(1)))     < 0.000001,
+        abs(1 - asinh(sinh(1)))     < 0.000001,
+        abs(1 - atanh(tanh(1)))     < 0.000001,
+        abs(180 - degrees(pi()))    < 0.000001,
+        abs(pi() - radians(180))    < 0.000001,
+        abs(pi() / 2 - atan2(1, 0)) < 0.000001
+    `)
+    expect(actual.values).to.eql([[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]])
+  })
+
+  it('supports contrib math functions', async function () {
+    const actual = await db.execute(`
+      SELECT
+        exp(0),
+        log(exp(1)),
+        log10(10000),
+        power(2, 3),
+        sign(-10) + sign(20),
+        sqrt(square(16)),
+        ceil(-1.95) + ceil(1.95),
+        floor(-1.95) + floor(1.95)
+    `)
+    expect(actual.values).to.eql([[1, 1, 4, 8, 0, 16, 1, -1]])
+  })
+
+  it('supports contrib string functions', async function () {
+    const actual = await db.execute(`
+      SELECT
+        replicate('ab', 4),
+        charindex('ab', 'foobarabbarfoo'),
+        charindex('ab', 'foobarabbarfoo', 8),
+        leftstr('foobar', 2),
+        rightstr('foobar', 2),
+        reverse('foobar'),
+        proper('fooBar'),
+        padl('foo', 5),
+        padr('foo', 5),
+        padc('foo', 5),
+        strfilter('abcba', 'bc')
+    `)
+    expect(actual.values).to.eql([
+      ['abababab', 7, 0, 'fo', 'ar', 'raboof', 'Foobar', '  foo', 'foo  ', ' foo ', 'bcb']
+    ])
+  })
+
+  it('supports contrib aggregate functions', async function () {
+    const actual = await db.execute(`
+      WITH RECURSIVE series(x) AS (
+          SELECT 1
+        UNION ALL
+          SELECT x + 1
+          FROM series
+          WHERE x + 1 <= 12
+      )
+      SELECT
+        abs( 3.77406806 - stdev(x))    < 0.000001,
+        abs(14.24358974 - variance(x)) < 0.000001,
+        mode(x),
+        median(x),
+        lower_quartile(x),
+        upper_quartile(x)
+      FROM (
+        SELECT x
+        FROM series
+        UNION ALL
+        VALUES (1)
+      )
+    `)
+    expect(actual.values).to.eql([[1, 1, 1, 6, 3, 9]])
+  })
+
+  it('supports generate_series', async function () {
+    const actual = await db.execute(`
+      SELECT value
+      FROM generate_series(5, 20, 5)
+    `)
+    expect(actual.values).to.eql([[5], [10], [15], [20]])
+  })
+
+  it('supports transitive_closure', async function () {
+    const actual = await db.execute(`
+      CREATE TABLE node(
+      node_id   INTEGER NOT NULL PRIMARY KEY,
+      parent_id INTEGER,
+      name      VARCHAR(127),
+      FOREIGN KEY (parent_id) REFERENCES node(node_id)
+    );
+    CREATE INDEX node_parent_id_idx ON node(parent_id);
+
+    CREATE VIRTUAL TABLE node_closure USING transitive_closure(
+        tablename    = "node",
+        idcolumn     = "node_id",
+        parentcolumn = "parent_id"
+      );
+
+    INSERT INTO node VALUES
+      (1,  NULL, 'tests'),
+      (2,  1,    'lib'),
+      (3,  2,    'database'),
+      (4,  2,    'utils'),
+      (5,  2,    'storedQueries.spec.js'),
+      (6,  3,    '_sql.spec.js'),
+      (7,  3,    '_statements.spec.js'),
+      (8,  3,    'database.spec.js'),
+      (9,  3,    'sqliteExtensions.spec.js'),
+      (10, 4,    'fileIo.spec.js'),
+      (11, 4,    'time.spec.js');
+
+      SELECT name
+      FROM node
+      WHERE node_id IN (
+        SELECT nc.id
+        FROM node_closure AS nc
+        WHERE nc.root = 2 AND nc.depth = 2
+      );
+    `)
+    expect(actual.values).to.eql([
+      ['_sql.spec.js'],
+      ['_statements.spec.js'],
+      ['database.spec.js'],
+      ['sqliteExtensions.spec.js'],
+      ['fileIo.spec.js'],
+      ['time.spec.js']
+    ])
+  })
+
+  it('supports UUID functions', async function () {
+    const actual = await db.execute(`
+      SELECT
+        length(uuid()),
+        uuid_str(uuid_blob('26a8349c8a7f4cbeb519bf792c3d7ac6'))
+    `)
+    expect(actual.values).to.eql([[36, '26a8349c-8a7f-4cbe-b519-bf792c3d7ac6']])
+  })
+
+  it('supports regexp', async function () {
+    const actual = await db.execute(`
+      SELECT
+        regexp('=\\s?\\d+',  'const foo = 123; const bar = "bar"'),
+        regexpi('=\\s?\\d+', 'const foo = 123; const bar = "bar"'),
+        'const foo = 123; const bar = "bar"' REGEXP '=\\s?\\d+'
+    `)
+    expect(actual.values).to.eql([[1, 1, 1]])
+  })
+
+  it('supports pivot virtual table', async function () {
+    const actual = await db.execute(`
+      CREATE TABLE point(x REAL, y REAL, z REAL);
+      INSERT INTO point VALUES
+        (5,3,3.2),  (5,6,4.3),  (5,9,5.4),
+        (10,3,4),   (10,6,3.8), (10,9,3.6),
+        (15,3,4.8), (15,6,4),   (15,9,3.5);
+
+      CREATE VIRTUAL TABLE pivot USING pivot_vtab(
+        (SELECT y FROM point GROUP BY y),
+        (SELECT x, x FROM point GROUP BY x),
+        (SELECT z FROM point WHERE y = :y AND x = :x)
+      );
+
+      CREATE TEMPORARY TABLE surface AS
+      SELECT xt.x, p.*
+      FROM (
+        SELECT row_number() OVER () rownum, *
+        FROM pivot
+      ) p
+      JOIN (
+        SELECT row_number() OVER () rownum, x
+        FROM point
+        GROUP BY x
+      ) xt USING(rownum);
+      ALTER TABLE surface DROP COLUMN rownum;
+      SELECT * FROM surface;
+    `)
+    expect(actual.columns).to.eql(['x', 'y', '5.0', '10.0', '15.0'])
+    expect(actual.values).to.eql([
+      [5, 3, 3.2, 4, 4.8],
+      [10, 6, 4.3, 3.8, 4],
+      [15, 9, 5.4, 3.6, 3.5]
+    ])
+  })
+
+  it('supports FTS5', async function () {
+    const actual = await db.execute(`
+      CREATE VIRTUAL TABLE email USING fts5(sender, title, body, tokenize = 'porter ascii');
+
+      INSERT INTO email VALUES
+        (
+          'foo@localhost',
+          'fts3/4',
+          'FTS3 and FTS4 are SQLite virtual table modules that allows users to perform '
+          || 'full-text searches on a set of documents.'
+        ),
+        (
+          'bar@localhost',
+          'fts4',
+          'FTS5 is an SQLite virtual table module that provides full-text search '
+          || 'functionality to database applications.'
+        );
+
+      SELECT sender
+      FROM email
+      WHERE body MATCH '"full-text" NOT document'
+      ORDER BY rank;
+    `)
+    expect(actual.values).to.eql([['bar@localhost']])
+  })
+})

tests/lib/storedQueries.spec.js

@@ -1,7 +1,7 @@
 import { expect } from 'chai'
 import sinon from 'sinon'
-import storedQueries from '@/storedQueries.js'
-import fu from '@/file.utils'
+import storedQueries from '@/lib/storedQueries'
+import fu from '@/lib/utils/fileIo'
 
 describe('storedQueries.js', () => {
   beforeEach(() => {