#include "procedurelistwidget.h"
#include "overlaydialogswidget.h"
#include "../procedure/proceduremanager.h"
#include <QFrame>
#include <QScrollBar>
#include <QCoreApplication>
#include <QDir>
#include <QDebug>

ProcedureListWidget::ProcedureListWidget(ProcedureManager *manager, QWidget *parent)
    : QWidget(parent), m_manager(manager)
{
  setupUI();
  refreshList();
}

ProcedureListWidget::~ProcedureListWidget() {}

void ProcedureListWidget::setupUI()
{
  auto *mainLayout = new QVBoxLayout(this);
  mainLayout->setContentsMargins(0, 0, 0, 0);
  mainLayout->setSpacing(0);

  // 顶部工具栏 - Material Design 深色
  auto *toolbar = new QWidget(this);
  toolbar->setFixedHeight(56);
  toolbar->setStyleSheet("background: #263238;");

  auto *toolbarLayout = new QHBoxLayout(toolbar);
  toolbarLayout->setContentsMargins(8, 0, 16, 0);
  toolbarLayout->setSpacing(8);

  m_backBtn = new QPushButton("返回", this);
  m_backBtn->setFixedHeight(40);
  m_backBtn->setStyleSheet(
      "QPushButton { background: #455A64; color: white; border: none; border-radius: 4px; padding: 0 16px; font-size: 14px; }"
      "QPushButton:hover { background: #546E7A; }"
      "QPushButton:pressed { background: #37474F; }");
  connect(m_backBtn, &QPushButton::clicked, this, &ProcedureListWidget::backRequested);
  toolbarLayout->addWidget(m_backBtn);

  auto *titleLabel = new QLabel("规程列表", this);
  titleLabel->setStyleSheet("color: white; font-size: 18px; font-weight: bold;");
  toolbarLayout->addWidget(titleLabel);
  toolbarLayout->addStretch();

  mainLayout->addWidget(toolbar);

  // 内容区域
  auto *contentWidget = new QWidget(this);
  contentWidget->setStyleSheet("background: #FAFAFA;");
  auto *contentLayout = new QVBoxLayout(contentWidget);
  contentLayout->setContentsMargins(20, 20, 20, 20);
  contentLayout->setSpacing(16);

  // 搜索卡片
  auto *searchCard = new QWidget(this);
  searchCard->setStyleSheet(
      "QWidget#searchCard { background: white; border-radius: 8px; border: 1px solid #E0E0E0; }");
  searchCard->setObjectName("searchCard");
  auto *searchCardLayout = new QVBoxLayout(searchCard);
  searchCardLayout->setContentsMargins(20, 16, 20, 16);
  searchCardLayout->setSpacing(16);

  auto *searchRow = new QHBoxLayout();
  searchRow->setSpacing(12);
  m_searchEdit = new QLineEdit(this);
  m_searchEdit->setPlaceholderText("输入规程ID或名称搜索...");
  m_searchEdit->setFixedHeight(44);
  m_searchEdit->setStyleSheet(
      "QLineEdit { border: 2px solid #E0E0E0; border-radius: 6px; padding: 0 16px; font-size: 15px; background: #FAFAFA; }"
      "QLineEdit:focus { border-color: #1976D2; background: white; }");
  searchRow->addWidget(m_searchEdit, 1);

  m_scanProcedureBtn = new QPushButton("扫描条码", this);
  m_scanProcedureBtn->setFixedHeight(44);
  m_scanProcedureBtn->setStyleSheet(
      "QPushButton { background: #1976D2; color: white; border: none; border-radius: 6px; padding: 0 20px; font-size: 14px; font-weight: bold; }"
      "QPushButton:hover { background: #1565C0; }"
      "QPushButton:pressed { background: #0D47A1; }");
  searchRow->addWidget(m_scanProcedureBtn);
  searchCardLayout->addLayout(searchRow);

  auto *workOrderRow = new QHBoxLayout();
  workOrderRow->setSpacing(12);
  auto *workOrderLabel = new QLabel("工单号:", this);
  workOrderLabel->setStyleSheet("color: #424242; font-size: 15px; font-weight: bold;");
  workOrderLabel->setFixedWidth(70);
  workOrderRow->addWidget(workOrderLabel);

  m_workOrderEdit = new QLineEdit(this);
  m_workOrderEdit->setPlaceholderText("输入或扫描工单号");
  m_workOrderEdit->setFixedHeight(44);
  m_workOrderEdit->setStyleSheet(
      "QLineEdit { border: 2px solid #E0E0E0; border-radius: 6px; padding: 0 16px; font-size: 15px; background: #FAFAFA; }"
      "QLineEdit:focus { border-color: #1976D2; background: white; }");
  workOrderRow->addWidget(m_workOrderEdit, 1);

  m_scanWorkOrderBtn = new QPushButton("扫描", this);
  m_scanWorkOrderBtn->setFixedHeight(44);
  m_scanWorkOrderBtn->setStyleSheet(
      "QPushButton { background: #455A64; color: white; border: none; border-radius: 6px; padding: 0 20px; font-size: 14px; }"
      "QPushButton:hover { background: #546E7A; }"
      "QPushButton:pressed { background: #37474F; }");
  workOrderRow->addWidget(m_scanWorkOrderBtn);
  searchCardLayout->addLayout(workOrderRow);

  contentLayout->addWidget(searchCard);

  // 规程列表
  m_procedureList = new QListWidget(this);
  m_procedureList->setStyleSheet(
      "QListWidget { border: 1px solid #E0E0E0; border-radius: 8px; background: white; padding: 8px; }"
      "QListWidget::item { background: #FAFAFA; border-radius: 6px; padding: 16px; margin: 4px 0; border: 1px solid #EEEEEE; }"
      "QListWidget::item:selected { background: #E3F2FD; border: 2px solid #1976D2; }"
      "QListWidget::item:hover { background: #F5F5F5; }");
  contentLayout->addWidget(m_procedureList, 1);

  // 底部按钮
  auto *bottomLayout = new QHBoxLayout();
  bottomLayout->addStretch();
  m_startBtn = new QPushButton("进入规程", this);
  m_startBtn->setEnabled(false);
  m_startBtn->setFixedSize(200, 52);
  m_startBtn->setStyleSheet(
      "QPushButton { background: #43A047; color: white; border: none; border-radius: 8px; font-size: 16px; font-weight: bold; }"
      "QPushButton:hover { background: #388E3C; }"
      "QPushButton:pressed { background: #2E7D32; }"
      "QPushButton:disabled { background: #BDBDBD; color: #757575; }");
  bottomLayout->addWidget(m_startBtn);
  bottomLayout->addStretch();
  contentLayout->addLayout(bottomLayout);

  mainLayout->addWidget(contentWidget, 1);

  connect(m_searchEdit, &QLineEdit::textChanged, this, &ProcedureListWidget::onSearchTextChanged);
  connect(m_scanProcedureBtn, &QPushButton::clicked, this, &ProcedureListWidget::onScanProcedureBarcode);
  connect(m_scanWorkOrderBtn, &QPushButton::clicked, this, &ProcedureListWidget::onScanWorkOrderBarcode);
  connect(m_procedureList, &QListWidget::itemClicked, this, &ProcedureListWidget::onProcedureItemClicked);
  connect(m_procedureList, &QListWidget::itemDoubleClicked, this, &ProcedureListWidget::onStartProcedure);
  connect(m_startBtn, &QPushButton::clicked, this, &ProcedureListWidget::onStartProcedure);
}

void ProcedureListWidget::refreshList()
{
  // 尝试多个可能的 procedures 目录位置
  QStringList possiblePaths;
  possiblePaths << QCoreApplication::applicationDirPath() + "/procedures";
  possiblePaths << QCoreApplication::applicationDirPath() + "/../../procedures";
  possiblePaths << QCoreApplication::applicationDirPath() + "/../../../procedures";
  possiblePaths << QCoreApplication::applicationDirPath() + "/../../../../procedures";

  QString proceduresDir;
  for (const QString &path : possiblePaths)
  {
    QString absPath = QDir(path).absolutePath();
    qDebug() << "Checking procedures path:" << absPath << "exists:" << QDir(absPath).exists();
    if (QDir(absPath).exists())
    {
      proceduresDir = absPath;
      break;
    }
  }

  if (proceduresDir.isEmpty())
  {
    qWarning() << "Could not find procedures directory! Tried paths:" << possiblePaths;
    proceduresDir = QCoreApplication::applicationDirPath() + "/procedures"; // 使用默认路径
  }

  qDebug() << "Loading procedures from:" << proceduresDir;
  auto procedures = m_manager->loadProcedureList(proceduresDir);
  updateProcedureList(procedures);
}

void ProcedureListWidget::updateProcedureList(const QVector<ProcedureSummary> &procedures)
{
  m_procedureList->clear();
  for (const auto &proc : procedures)
  {
    auto *item = new QListWidgetItem();
    item->setData(Qt::UserRole, proc.id);
    item->setText(QString("%1\n%2\n版本: %3").arg(proc.id).arg(proc.name).arg(proc.version));
    item->setSizeHint(QSize(0, 80));
    m_procedureList->addItem(item);
  }
}

void ProcedureListWidget::onSearchTextChanged(const QString &text)
{
  updateProcedureList(m_manager->searchProcedures(text));
}

void ProcedureListWidget::onScanProcedureBarcode()
{
  OverlayDialog::information(this, "扫码", "请将条码对准扫描窗口...");
}

void ProcedureListWidget::onScanWorkOrderBarcode()
{
  OverlayDialog::information(this, "扫码", "请将工单条码对准扫描窗口...");
}

void ProcedureListWidget::onProcedureItemClicked(QListWidgetItem *item)
{
  m_selectedProcedureId = item->data(Qt::UserRole).toString();
  m_startBtn->setEnabled(!m_selectedProcedureId.isEmpty());
}

void ProcedureListWidget::onStartProcedure()
{
  if (m_selectedProcedureId.isEmpty())
  {
    OverlayDialog::warning(this, "提示", "请先选择一个规程");
    return;
  }
  QString workOrder = m_workOrderEdit->text().trimmed();
  if (!workOrder.isEmpty())
  {
    m_manager->setWorkOrderId(workOrder);
  }
  emit procedureSelected(m_selectedProcedureId);
}