<?php

declare(strict_types=1);

namespace App\Filament\Resources\Posts\Tables;

use App\Blog\Services\CoverGenerator;
use App\Models\Post;
use Filament\Actions\Action;
use Filament\Actions\BulkActionGroup;
use Filament\Actions\DeleteBulkAction;
use Filament\Actions\EditAction;
use Filament\Actions\ViewAction;
use Filament\Notifications\Notification;
use Filament\Support\Enums\Width;
use Filament\Tables\Columns\IconColumn;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Enums\FiltersLayout;
use Filament\Tables\Filters\SelectFilter;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;

class PostsTable
{
    public static function configure(Table $table): Table
    {
        return $table
            ->columns([
                TextColumn::make('title')
                    ->label('标题')
                    ->searchable()
                    ->limit(40)
                    ->description(fn ($record) => $record->category?->name),
                TextColumn::make('content_format')
                    ->label('格式')
                    ->badge()
                    ->formatStateUsing(fn ($state) => $state === 'markdown' ? 'MD' : 'HTML')
                    ->color(fn ($state) => $state === 'markdown' ? 'success' : 'gray'),
                TextColumn::make('status')
                    ->label('状态')
                    ->badge()
                    ->formatStateUsing(fn ($state) => match ($state) {
                        'published' => '已发布',
                        'draft' => '草稿',
                        'private' => '私密',
                        default => $state,
                    })
                    ->color(fn ($state) => match ($state) {
                        'published' => 'success',
                        'draft' => 'warning',
                        default => 'gray',
                    }),
                IconColumn::make('cover_state')
                    ->label('封面')
                    ->boolean()
                    ->trueIcon('heroicon-o-photo')
                    ->falseIcon('heroicon-o-x-mark')
                    ->trueColor('success')
                    ->falseColor('gray')
                    ->state(fn (Post $record): bool => $record->coverImageUrl() !== null)
                    ->tooltip(fn (Post $record): string => $record->coverImageUrl() !== null ? '已有封面' : '无封面，可用「生成封面」AI 补一张')
                    ->toggleable(),
                TextColumn::make('sticky_level')
                    ->label('置顶')
                    ->badge()
                    ->sortable()
                    ->formatStateUsing(fn ($state) => Post::stickyLevelOptions()[(int) $state] ?? '不置顶')
                    ->color(fn ($state) => match ((int) $state) {
                        Post::STICKY_HEADLINE => 'danger',
                        Post::STICKY_STRONG => 'warning',
                        Post::STICKY_LIGHT => 'success',
                        default => 'gray',
                    }),
                TextColumn::make('views')
                    ->label('阅读')
                    ->numeric()
                    ->sortable(),
                TextColumn::make('comment_count')
                    ->label('评论')
                    ->numeric()
                    ->sortable(),
                TextColumn::make('published_at')
                    ->label('发布时间')
                    ->dateTime('Y-m-d H:i')
                    ->sortable(),
            ])
            ->filters([
                SelectFilter::make('category_id')
                    ->label('分类')
                    ->relationship('category', 'name'),
                SelectFilter::make('status')
                    ->label('状态')
                    ->options([
                        'published' => '已发布',
                        'draft' => '草稿',
                        'private' => '私密',
                    ]),
                SelectFilter::make('content_format')
                    ->label('格式')
                    ->options([
                        'markdown' => 'Markdown',
                        'html' => 'HTML',
                    ]),
                SelectFilter::make('sticky_level')
                    ->label('置顶')
                    ->options(Post::stickyLevelOptions()),
                SelectFilter::make('cover_status')
                    ->label('封面')
                    ->options([
                        'with' => '有封面',
                        'without' => '无封面',
                        'no_image' => '完全无图（正文/附件也没有）',
                    ])
                    ->query(fn (Builder $query, array $data): Builder => match ($data['value'] ?? null) {
                        'with' => $query->where(fn (Builder $q) => $q
                            ->whereNotNull('cover_media_id')
                            ->orWhereHas('media', fn (Builder $m) => $m->where('collection_name', 'cover'))),
                        'without' => $query
                            ->whereNull('cover_media_id')
                            ->whereDoesntHave('media', fn (Builder $m) => $m->where('collection_name', 'cover')),
                        'no_image' => $query
                            ->whereNull('cover_media_id')
                            ->whereDoesntHave('media', fn (Builder $m) => $m->where(fn (Builder $x) => $x
                                ->where('collection_name', 'cover')
                                ->orWhere(fn (Builder $y) => $y
                                    ->where('collection_name', 'attachments')
                                    ->where('mime_type', 'like', 'image/%'))))
                            ->where('content', 'not like', '%<img%')
                            ->where('content', 'not like', '%](http%'),
                        default => $query,
                    }),
            ], FiltersLayout::AboveContent)
            ->filtersFormColumns(3)
            ->filtersFormWidth(Width::ThreeExtraLarge)
            ->recordActions([
                Action::make('generateCover')
                    ->label('生成封面')
                    ->icon('heroicon-o-photo')
                    ->color('gray')
                    ->requiresConfirmation()
                    ->modalHeading('AI 生成封面')
                    ->modalDescription(fn (Post $record): string => "根据《{$record->title}》的标题和摘要生成一张封面图，约需 20 秒，请耐心等待。")
                    ->action(function (Post $record): void {
                        try {
                            app(CoverGenerator::class)->generateFor($record);
                            Notification::make()->title('封面已生成')->success()->send();
                        } catch (\Throwable $e) {
                            Notification::make()->title('生成失败')->body($e->getMessage())->danger()->send();
                        }
                    }),
                Action::make('preview')
                    ->label('预览')
                    ->url(fn (Post $record): string => $record->url)
                    ->openUrlInNewTab(),
                ViewAction::make(),
                EditAction::make(),
            ])
            ->recordUrl(null)
            ->recordAction(null)
            ->toolbarActions([
                BulkActionGroup::make([
                    DeleteBulkAction::make(),
                ]),
            ])
            ->defaultSort('published_at', 'desc');
    }
}