<?php

namespace App\Filament\Resources;

use App\Filament\Resources\SopTemplateResource\Pages;
use App\Models\SopTemplate;
use Filament\Forms;
use Filament\Forms\Form;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;

class SopTemplateResource extends Resource
{
    protected static ?string $model = SopTemplate::class;

    protected static ?string $navigationIcon = 'heroicon-o-document-text';

    protected static ?string $navigationLabel = 'SOP模板';

    protected static ?string $modelLabel = 'SOP模板';

    protected static ?string $pluralModelLabel = 'SOP模板';

    protected static ?int $navigationSort = 4;

    public static function form(Form $form): Form
    {
        return $form
            ->schema([
                Forms\Components\Section::make('基本信息')
                    ->schema([
                        Forms\Components\TextInput::make('name')
                            ->label('模板名称')
                            ->required()
                            ->maxLength(255),
                        
                        Forms\Components\Textarea::make('description')
                            ->label('模板描述')
                            ->rows(3)
                            ->maxLength(65535),
                        
                        Forms\Components\TextInput::make('category')
                            ->label('分类')
                            ->maxLength(100)
                            ->placeholder('例如：安全操作、设备维护、质量检查'),
                        
                        Forms\Components\TagsInput::make('tags')
                            ->label('标签')
                            ->placeholder('添加标签')
                            ->separator(','),
                    ])
                    ->columns(2),

                Forms\Components\Section::make('适用范围')
                    ->schema([
                        Forms\Components\TagsInput::make('applicable_departments')
                            ->label('适用部门')
                            ->placeholder('添加部门')
                            ->separator(','),
                        
                        Forms\Components\TagsInput::make('applicable_positions')
                            ->label('适用岗位')
                            ->placeholder('添加岗位')
                            ->separator(','),
                    ])
                    ->columns(2),

                Forms\Components\Section::make('版本管理')
                    ->schema([
                        Forms\Components\TextInput::make('version')
                            ->label('版本号')
                            ->default('1.0.0')
                            ->required()
                            ->maxLength(50),
                        
                        Forms\Components\Select::make('status')
                            ->label('状态')
                            ->options([
                                'draft' => '草稿',
                                'published' => '已发布',
                                'archived' => '已归档',
                            ])
                            ->default('draft')
                            ->required(),
                    ])
                    ->columns(2)
                    ->visible(fn ($livewire) => $livewire instanceof Pages\EditSopTemplate),

                // 步骤编辑器 - 只在编辑页面显示
                Forms\Components\Section::make('操作步骤')
                    ->schema([
                        Forms\Components\Repeater::make('steps')
                            ->label('')
                            ->relationship('steps')
                            ->schema([
                                Forms\Components\TextInput::make('step_number')
                                    ->label('步骤序号')
                                    ->numeric()
                                    ->required()
                                    ->default(fn ($get) => $get('../../steps') ? count($get('../../steps')) + 1 : 1),
                                
                                Forms\Components\TextInput::make('title')
                                    ->label('步骤标题')
                                    ->required()
                                    ->maxLength(255)
                                    ->columnSpanFull(),
                                
                                Forms\Components\RichEditor::make('content')
                                    ->label('步骤内容')
                                    ->toolbarButtons([
                                        'bold',
                                        'italic',
                                        'underline',
                                        'strike',
                                        'bulletList',
                                        'orderedList',
                                        'h2',
                                        'h3',
                                        'link',
                                        'blockquote',
                                        'codeBlock',
                                    ])
                                    ->columnSpanFull(),
                                
                                Forms\Components\Toggle::make('is_required')
                                    ->label('是否必需')
                                    ->default(true),
                                
                                Forms\Components\Hidden::make('sort_order')
                                    ->default(fn ($get) => $get('step_number')),
                            ])
                            ->columns(2)
                            ->reorderable('sort_order')
                            ->reorderableWithButtons()
                            ->collapsible()
                            ->itemLabel(fn (array $state): ?string => $state['title'] ?? '新步骤')
                            ->addActionLabel('添加步骤')
                            ->defaultItems(0)
                            ->mutateRelationshipDataBeforeCreateUsing(function (array $data): array {
                                $data['sort_order'] = $data['step_number'];
                                return $data;
                            })
                            ->mutateRelationshipDataBeforeSaveUsing(function (array $data): array {
                                $data['sort_order'] = $data['step_number'];
                                return $data;
                            }),
                    ])
                    ->visible(fn ($livewire) => $livewire instanceof Pages\EditSopTemplate),
            ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('name')
                    ->label('模板名称')
                    ->searchable()
                    ->sortable(),
                
                Tables\Columns\TextColumn::make('category')
                    ->label('分类')
                    ->searchable()
                    ->sortable()
                    ->badge()
                    ->color('info'),
                
                Tables\Columns\TextColumn::make('version')
                    ->label('版本')
                    ->sortable(),
                
                Tables\Columns\TextColumn::make('status')
                    ->label('状态')
                    ->badge()
                    ->color(fn (string $state): string => match ($state) {
                        'draft' => 'gray',
                        'published' => 'success',
                        'archived' => 'warning',
                    })
                    ->formatStateUsing(fn (string $state): string => match ($state) {
                        'draft' => '草稿',
                        'published' => '已发布',
                        'archived' => '已归档',
                        default => $state,
                    }),
                
                Tables\Columns\TextColumn::make('steps_count')
                    ->label('步骤数')
                    ->counts('steps')
                    ->sortable(),
                
                Tables\Columns\TextColumn::make('creator.name')
                    ->label('创建人')
                    ->sortable()
                    ->toggleable(),
                
                Tables\Columns\TextColumn::make('published_at')
                    ->label('发布时间')
                    ->dateTime('Y-m-d H:i')
                    ->sortable()
                    ->toggleable(),
                
                Tables\Columns\TextColumn::make('created_at')
                    ->label('创建时间')
                    ->dateTime('Y-m-d H:i')
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
            ])
            ->filters([
                Tables\Filters\SelectFilter::make('status')
                    ->label('状态')
                    ->options([
                        'draft' => '草稿',
                        'published' => '已发布',
                        'archived' => '已归档',
                    ]),
                
                Tables\Filters\SelectFilter::make('category')
                    ->label('分类')
                    ->options(function () {
                        return SopTemplate::query()
                            ->whereNotNull('category')
                            ->distinct()
                            ->pluck('category', 'category')
                            ->toArray();
                    }),
            ])
            ->actions([
                Tables\Actions\ViewAction::make(),
                Tables\Actions\EditAction::make(),
                Tables\Actions\DeleteAction::make(),
            ])
            ->bulkActions([
                Tables\Actions\BulkActionGroup::make([
                    Tables\Actions\DeleteBulkAction::make(),
                ]),
            ])
            ->defaultSort('created_at', 'desc');
    }

    public static function getRelations(): array
    {
        return [
            //
        ];
    }

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListSopTemplates::route('/'),
            'create' => Pages\CreateSopTemplate::route('/create'),
            'view' => Pages\ViewSopTemplate::route('/{record}'),
            'edit' => Pages\EditSopTemplate::route('/{record}/edit'),
        ];
    }
}
