<?php

namespace App\Filament\Resources;

use App\Filament\Resources\PackageResource\Pages;
use App\Models\Package;
use Filament\Actions\BulkActionGroup;
use Filament\Actions\DeleteAction;
use Filament\Actions\DeleteBulkAction;
use Filament\Actions\EditAction;
use Filament\Actions\ViewAction;
use Filament\Forms\Components\CheckboxList;
use Filament\Forms\Components\MarkdownEditor;
use Filament\Forms\Components\Repeater;
use Filament\Schemas\Components\Section;
use Filament\Forms\Components\Select;
use Filament\Schemas\Components\Tabs as SchemaTabs;
use Filament\Schemas\Components\Tabs\Tab as SchemaTab;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Components\Toggle;
use Filament\Resources\Resource;
use Filament\Schemas\Schema;
use Filament\Tables;
use Filament\Tables\Columns\BadgeColumn;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Table;
use UnitEnum;
use BackedEnum;

class PackageResource extends Resource
{
    protected static ?string $model = Package::class;

    protected static string|BackedEnum|null $navigationIcon = 'heroicon-o-cube';

    protected static string|UnitEnum|null $navigationGroup = null;

    public static function getNavigationGroup(): UnitEnum|string|null
    {
        return __('admin.nav.platform_management');
    }

    protected static ?int $navigationSort = 5;

    public static function form(Schema $schema): Schema
    {
        $featureOptions = static::featureLabelMap();

        return $schema->schema([
            SchemaTabs::make('translations')
                ->columnSpanFull()
                ->tabs([
                    SchemaTab::make('Deutsch')
                        ->schema([
                            TextInput::make('name_translations.de')
                                ->label('Name (DE)')
                                ->required()
                                ->maxLength(255),
                            MarkdownEditor::make('description_translations.de')
                                ->label('Beschreibung (DE)')
                                ->required()
                                ->columnSpanFull(),
                        ]),
                    SchemaTab::make('English')
                        ->schema([
                            TextInput::make('name_translations.en')
                                ->label('Name (EN)')
                                ->required()
                                ->maxLength(255),
                            MarkdownEditor::make('description_translations.en')
                                ->label('Description (EN)')
                                ->required()
                                ->columnSpanFull(),
                        ]),
                ]),
            Section::make('Allgemeine Einstellungen')
                ->columns(3)
                ->schema([
                    TextInput::make('slug')
                        ->label('Slug')
                        ->required()
                        ->maxLength(191)
                        ->unique(ignoreRecord: true),
                    Select::make('type')
                        ->label('Paket-Typ')
                        ->options([
                            'endcustomer' => 'Endkunde',
                            'reseller' => 'Reseller',
                        ])
                        ->required(),
                    TextInput::make('price')
                        ->label('Preis')
                        ->numeric()
                        ->step(0.01)
                        ->prefix('€')
                        ->required(),
                    TextInput::make('max_photos')
                        ->label('Max. Fotos')
                        ->numeric()
                        ->minValue(0)
                        ->nullable(),
                    TextInput::make('max_guests')
                        ->label('Max. Gäste')
                        ->numeric()
                        ->minValue(0)
                        ->nullable(),
                    TextInput::make('gallery_days')
                        ->label('Galeriedauer (Tage)')
                        ->numeric()
                        ->minValue(0)
                        ->nullable(),
                    TextInput::make('max_tasks')
                        ->label('Max. Fotoaufgaben')
                        ->numeric()
                        ->minValue(0)
                        ->nullable(),
                    TextInput::make('max_events_per_year')
                        ->label('Events pro Jahr')
                        ->numeric()
                        ->minValue(0)
                        ->nullable()
                        ->visible(fn ($get) => $get('type') === 'reseller'),
                    Toggle::make('watermark_allowed')
                        ->label('Wasserzeichen erlaubt')
                        ->default(true),
                    Toggle::make('branding_allowed')
                        ->label('Eigenes Branding erlaubt')
                        ->default(false),
                ]),
            Section::make('Features & Kennzahlen')
                ->columns(1)
                ->schema([
                    CheckboxList::make('features')
                        ->label('Aktive Features')
                        ->options($featureOptions)
                        ->columns(2)
                        ->default([]),
                    Repeater::make('description_table')
                        ->label('Kenndaten')
                        ->schema([
                            TextInput::make('title')
                                ->label('Titel')
                                ->maxLength(255),
                            TextInput::make('value')
                                ->label('Wert / Beschreibung')
                                ->maxLength(255),
                        ])
                        ->addActionLabel('Eintrag hinzufügen')
                        ->reorderable()
                        ->columnSpanFull()
                        ->default([]),
                ]),
        ]);
    }

    public static function formatFeaturesForDisplay(mixed $features): string
    {
        if (is_string($features)) {
            $decoded = json_decode($features, true);
            if (json_last_error() === JSON_ERROR_NONE) {
                $features = $decoded;
            }
        }

        if (! is_array($features)) {
            return '';
        }

        $labels = static::featureLabelMap();

        if (array_is_list($features)) {
            return collect($features)
                ->filter(fn ($value) => is_string($value) && $value !== '')
                ->map(fn ($value) => $labels[$value] ?? $value)
                ->implode(', ');
        }

        return collect($features)
            ->filter(fn ($value) => (bool) $value)
            ->keys()
            ->map(fn ($value) => $labels[$value] ?? $value)
            ->implode(', ');
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                TextColumn::make('name_translations.de')
                    ->label('Name (DE)')
                    ->searchable()
                    ->sortable(),
                TextColumn::make('name_translations.en')
                    ->label('Name (EN)')
                    ->toggleable(isToggledHiddenByDefault: true),
                BadgeColumn::make('type')
                    ->label('Typ')
                    ->colors([
                        'info' => 'endcustomer',
                        'warning' => 'reseller',
                    ]),
                TextColumn::make('price')
                    ->label('Preis')
                    ->money('EUR')
                    ->sortable(),
                TextColumn::make('max_photos')
                    ->label('Fotos')
                    ->sortable(),
                TextColumn::make('max_guests')
                    ->label('Gäste')
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
                TextColumn::make('features')
                    ->label('Features')
                    ->wrap()
                    ->formatStateUsing(fn ($state) => static::formatFeaturesForDisplay($state)),
            ])
            ->filters([
                Tables\Filters\SelectFilter::make('type')
                    ->label('Typ')
                    ->options([
                        'endcustomer' => 'Endkunde',
                        'reseller' => 'Reseller',
                    ]),
            ])
            ->actions([
                ViewAction::make(),
                EditAction::make(),
                DeleteAction::make(),
            ])
            ->bulkActions([
                BulkActionGroup::make([
                    DeleteBulkAction::make(),
                ]),
            ]);
    }

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

    protected static function featureLabelMap(): array
    {
        return [
            'basic_uploads' => 'Basis-Uploads',
            'limited_sharing' => 'Begrenztes Teilen',
            'unlimited_sharing' => 'Unbegrenztes Teilen',
            'no_watermark' => 'Kein Wasserzeichen',
            'custom_branding' => 'Eigenes Branding',
            'custom_tasks' => 'Eigene Aufgaben',
            'reseller_dashboard' => 'Reseller-Dashboard',
            'advanced_analytics' => 'Erweiterte Analytics',
            'advanced_reporting' => 'Erweiterte Reports',
            'live_slideshow' => 'Live-Slideshow',
            'priority_support' => 'Priorisierter Support',
        ];
    }
}