<?php

namespace App\Filament\Resources;

use AbdulmajeedJamaan\FilamentTranslatableTabs\TranslatableTabs;
use App\Filament\Resources\NewsResource\Pages;
use App\Filament\Resources\NewsResource\RelationManagers;
use App\Models\News;
use App\Models\NewsCategory;
use Filament\Forms;
use Filament\Forms\Components\DatePicker;
use Filament\Forms\Components\FileUpload;
use Filament\Forms\Components\Group;
use Filament\Forms\Components\Radio;
use Filament\Forms\Components\Repeater;
use Filament\Forms\Components\Section;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\Tabs;
use Filament\Forms\Components\Tabs\Tab;
use Filament\Forms\Components\Textarea;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Form;
use Filament\Forms\Get;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Columns\IconColumn;
use Filament\Tables\Columns\ImageColumn;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Filters\SelectFilter;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\SoftDeletingScope;
use Illuminate\Support\Str;
use Malzariey\FilamentLexicalEditor\Enums\ToolbarItem;
use Malzariey\FilamentLexicalEditor\FilamentLexicalEditor;

class NewsResource extends Resource
{
    protected static ?string $model = News::class;

    protected static ?string $navigationIcon = 'heroicon-o-newspaper';
    protected static ?string $navigationLabel = "最新消息管理";
    protected static ?string $navigationGroup = '最新消息';
    protected static ?string $modelLabel = "最新消息管理";
    protected static ?int $navigationSort = 3;

    public static function form(Form $form): Form
    {
        $editor_toolbar= [
            ToolbarItem::UNDO, ToolbarItem::REDO, ToolbarItem::NORMAL,
            ToolbarItem::H2, ToolbarItem::H3, ToolbarItem::H4, ToolbarItem::H5,
            ToolbarItem::BULLET, ToolbarItem::NUMBERED, ToolbarItem::FONT_SIZE,
            ToolbarItem::BOLD, ToolbarItem::ITALIC, ToolbarItem::UNDERLINE,
            ToolbarItem::LINK, ToolbarItem::TEXT_COLOR, ToolbarItem::BACKGROUND_COLOR,
            ToolbarItem::SUBSCRIPT, ToolbarItem::LOWERCASE, ToolbarItem::DIVIDER,
            ToolbarItem::UPPERCASE, ToolbarItem::CLEAR, ToolbarItem::HR
        ];
        return $form
            ->schema([
                //
                Tabs::make()->schema([
                    Tab::make("基本資訊")->schema([
                        Select::make("news_category_id")->label("分類")->options(function (){
                            return NewsCategory::pluck("name", "id");
                        })->required()
                        ->columnSpan(1),
                        DatePicker::make("post_date")->label("發佈日")
                        ->native(false)
                        ->closeOnDateSelection()
                        ->columnSpan(1),
                        FileUpload::make("news_img")->label("圖片")
                        ->directory("news")->maxSize(122880)
                        ->columnSpan(2),
                        TranslatableTabs::make('')
                        ->schema([
                            TextInput::make("title")
                            ->label("標題")
                            ->columnSpan(1),
                            TextInput::make("written_by")
                            ->label("撰文者")
                            ->columnSpan(1),
                            Textarea::make("description")
                            ->label("簡述")
                            ->columnSpan(2)
                        ])->columns(2)->columnSpan(2),
                    ])->columns(2),
                    Tab::make("SEO")->schema([
                        TranslatableTabs::make('')
                        ->schema([
                            TextInput::make("meta_title")->label("SEO 標題"),
                            TextInput::make("meta_keyword")->label("SEO 關鍵字"),
                            Textarea::make("meta_description")->label("SEO 簡述")
                        ])->columnSpanFull(),
                        FileUpload::make('meta_img')->label("放大預覽圖")
                        ->directory("news/seo")
                        ->columnSpan(1),
                    ]),
                    Tab::make("內文編輯")->schema([
                        Repeater::make("paragraphs")->schema([
                            TextInput::make('item_key')
                                ->default(fn () => Str::random())
                                ->hidden()
                                ->afterStateHydrated(function (TextInput $component, $state) {
                                    if (empty($state)) {
                                        $component->state(Str::random());
                                    }
                                }),
                            Radio::make("paragraph_type")->options([
                                1 => "圖片",
                                2 => "文字",
                                // 3 => "影音"
                            ])->label("")->inline()->default(1)->Live(),
                            Group::make()->schema([
                                Section::make('')->schema([
                                    Repeater::make("multiple_images")->schema([
                                        TextInput::make('para_img_item_key')
                                            ->default(fn () => Str::random())
                                            ->hidden()
                                            ->afterStateHydrated(function (TextInput $component, $state) {
                                                if (empty($state)) {
                                                    $component->state(Str::random());
                                                }
                                            }),
                                        TextInput::make("img_alt")->label("圖片註釋")->translatableTabs()->columnSpan(1),
                                        FileUpload::make('img_url')->label("")
                                        ->directory("news/paragraphs")
                                        ->maxFiles(10),
                                    ])
                                    ->relationship("photos")
                                    ->label("")
                                    ->orderColumn('order')
                                ])
                            ])->visible(fn (Get $get):bool => $get("paragraph_type") == 1),
                            Group::make()->schema([
                                FilamentLexicalEditor::make('text_content_tw')
                                    ->label('繁體中文內容')
                                    ->id(fn ($get) => "text_content_tw_" . $get('item_key') . "_" . uniqid())
                                    ->enabledToolbars($editor_toolbar)
                                    ->columnSpanFull(),
                                FilamentLexicalEditor::make('text_content_en')
                                    ->label('English Content')
                                    ->id(fn ($get) => "text_content_en_" . $get('item_key') . "_" . uniqid())
                                    ->enabledToolbars($editor_toolbar)
                                    ->columnSpanFull(),
                            ])->visible(fn (Get $get):bool => $get("paragraph_type") == 2),
                        ])
                        ->mutateRelationshipDataBeforeFillUsing(function (array $data): array {

                            if ($data['paragraph_type'] == 2 && !empty($data['text_content'])) {
                                $content = is_string($data['text_content'])
                                    ? json_decode($data['text_content'], true)
                                    : $data['text_content'];

                                if (is_array($content)) {
                                    $data['text_content_tw'] = $content['zh_TW'] ?? '';
                                    $data['text_content_en'] = $content['en'] ?? '';
                                }
                            }

                            return $data;
                        })
                        ->mutateRelationshipDataBeforeSaveUsing(function (array $data): array{
                            if ($data['paragraph_type'] == 2) {
                                $data["text_content"] = ["zh_TW" => $data["text_content_tw"], "en" => $data["text_content_en"]];
                                // 移除臨時的分離欄位，只保留合併的 JSON 欄位
                                unset($data['text_content_tw']);
                                unset($data['text_content_en']);
                            }
                            return $data;
                        })
                        ->relationship("paragraphs")
                        ->label("段落")
                        ->collapsible()
                        ->reorderableWithButtons()
                        ->orderColumn('order')
                        ->cloneable()
                    ])
                ])->columnSpanFull(),
            ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                //
                TextColumn::make("newsCategory.name")->label("分類")->alignCenter(),
                TextColumn::make("title")->label("標題")->alignCenter(),
                TextColumn::make("written_by")->label("發佈者")->alignCenter(),
                TextColumn::make("post_date")->label("發佈時間")->dateTime('Y/m/d')->alignCenter(),
                ImageColumn::make("news_img_url")->label("列表圖")->alignCenter(),
                TextColumn::make("list_audit_state")->label("狀態")->badge()
                ->color(fn (string $state): string => match ($state) {
                    '暫存' => 'warning',
                    '已發佈' => 'success',
                }),
                IconColumn::make("on_top")->label("置頂")
                ->color(fn (string $state): string => match ($state) {
                    1 => 'success',
                    default => ''
                })
                ->icon(fn (string $state): string => match ($state) {
                    1 => 'heroicon-o-check-circle',
                    default => ''
                })
                ->action(function ($record): void {
                    $record->on_top = !$record->on_top;
                    $record->save();
                }),
                TextColumn::make("created_at")->label("建立時間")->dateTime('Y/m/d H:i:s')->alignCenter(),
                TextColumn::make("updated_at")->label("更新時間")->dateTime()->alignCenter(),
            ])
            ->filters([
                SelectFilter::make('news_category_id')->label("分類")
                ->options(NewsCategory::orderBy("order")->pluck("name", "id"))
                ->attribute('news_category_id'),
                SelectFilter::make('post_date')->label("年份")
                ->options(News::select(\DB::raw("DATE_FORMAT(post_date, '%Y') as year"))->whereNotNull("post_date")->distinct()->pluck("year","year")->toArray())
                ->query(
                    fn (array $data, Builder $query): Builder =>
                    $query->when(
                        $data['value'],
                        fn (Builder $query, $value): Builder => $query->where('post_date', 'like', $data['value']. "%")
                    )
                ),
                SelectFilter::make('visible')->label("狀態")
                ->options([
                    0 => "暫存",
                    1 => "已發佈",
                ])
                ->query(
                    fn (array $data, Builder $query): Builder =>
                    $query->when(
                        $data['value'],
                        fn (Builder $query, $value): Builder => $query->where('visible', $data['value'])
                    )
                ),
            ])
            ->actions([
                Tables\Actions\EditAction::make(),
                Tables\Actions\DeleteAction::make(),
                \Filament\Tables\Actions\Action::make("audit")
                ->label(fn ($record) => match ($record->visible) {
                    0 => '發佈',
                    1 => '下架',
                })
                ->color(fn ($record) => match ($record->visible) {
                    0 => 'warning',
                    1 => 'gray',
                })
                ->icon(fn ($record) => match ($record->visible) {
                    0 => 'heroicon-m-chevron-double-up',
                    1 => 'heroicon-m-chevron-double-down',
                })
                ->action(function ($record): void {
                    $record->visible = !$record->visible;
                    $record->save();
                })
                ->outlined()
                ->requiresConfirmation(),
            ])
            ->bulkActions([
                Tables\Actions\BulkActionGroup::make([
                    Tables\Actions\DeleteBulkAction::make(),
                ]),
            ])
            ->defaultSort('order', 'desc')
            ->defaultSort('created_at', 'desc');
    }

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

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListNews::route('/'),
            'create' => Pages\CreateNews::route('/create'),
            'edit' => Pages\EditNews::route('/{record}/edit'),
        ];
    }
}