<?php

namespace App\Filament\Resources;

use App\Filament\Resources\PackageResource\Pages;
use App\Models\Package;
use Filament\Forms;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Table;
use Filament\Actions\Action;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\Toggle;
use Filament\Forms\Components\Repeater;
use Filament\Schemas\Schema;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Columns\IconColumn;
use Filament\Actions\EditAction;
use Filament\Actions\DeleteAction;
use Filament\Actions\BulkActionGroup;
use Filament\Actions\DeleteBulkAction;
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;

    protected static ?int $navigationSort = 5;

    public static function form(Schema $schema): Schema
    {
        return $schema->schema([
                TextInput::make('name')
                    ->label('Name')
                    ->required()
                    ->maxLength(255),
                Select::make('type')
                    ->label('Type')
                    ->options([
                        'endcustomer' => 'Endcustomer',
                        'reseller' => 'Reseller',
                    ])
                    ->required(),
                TextInput::make('price')
                    ->label('Price')
                    ->prefix('€')
                    ->numeric()
                    ->step(0.01)
                    ->required()
                    ->default(0),
                TextInput::make('max_photos')
                    ->label('Max Photos')
                    ->numeric()
                    ->nullable(),
                TextInput::make('max_guests')
                    ->label('Max Guests')
                    ->numeric()
                    ->nullable(),
                TextInput::make('gallery_days')
                    ->label('Gallery Days')
                    ->numeric()
                    ->nullable(),
                TextInput::make('max_tasks')
                    ->label('Max Tasks')
                    ->numeric()
                    ->nullable(),
                Toggle::make('watermark_allowed')
                    ->label('Watermark Allowed')
                    ->default(true),
                Toggle::make('branding_allowed')
                    ->label('Branding Allowed')
                    ->default(false),
                TextInput::make('max_events_per_year')
                    ->label('Max Events per Year')
                    ->numeric()
                    ->nullable(),
                Repeater::make('features')
                    ->label('Features')
                    ->schema([
                        TextInput::make('key')
                            ->label('Feature Key'),
                        TextInput::make('value')
                            ->label('Feature Value'),
                    ])
                    ->columns(2)
                    ->defaultItems(0),
            ]);
    }

    
    public static function featuresToRepeaterItems(mixed $features): array
    {
        if (is_string($features)) {
            $decoded = json_decode($features, true);

            if (is_string($decoded)) {
                $decoded = json_decode($decoded, true);
            }

            $features = json_last_error() === JSON_ERROR_NONE ? $decoded : null;
        }

        if ($features === null) {
            return [];
        }

        if (! is_array($features)) {
            return [];
        }

        if (! array_is_list($features)) {
            return collect($features)
                ->map(function ($value, $key) {
                    return [
                        'key' => (string) $key,
                        'value' => is_bool($value) ? ($value ? 'true' : 'false') : (string) $value,
                    ];
                })
                ->values()
                ->all();
        }

        return collect($features)
            ->map(function ($item) {
                if (is_array($item)) {
                    return [
                        'key' => (string) ($item['key'] ?? ''),
                        'value' => (string) ($item['value'] ?? ''),
                    ];
                }

                return [
                    'key' => (string) $item,
                    'value' => 'true',
                ];
            })
            ->values()
            ->all();
    }

    public static function featuresFromRepeaterItems(mixed $items): array
    {
        if (! is_array($items)) {
            return [];
        }

        $features = [];

        foreach ($items as $item) {
            if (! is_array($item)) {
                continue;
            }

            $key = isset($item['key']) ? trim((string) $item['key']) : '';

            if ($key === '') {
                continue;
            }

            $value = $item['value'] ?? true;

            if (is_string($value)) {
                $normalized = strtolower(trim($value));

                if (in_array($normalized, ['1', 'true', 'yes', 'on'], true)) {
                    $value = true;
                } elseif (in_array($normalized, ['0', 'false', 'no', 'off'], true)) {
                    $value = false;
                }
            }

            if (is_array($value)) {
                $value = $value['value'] ?? $value['enabled'] ?? true;
            }

            $features[$key] = (bool) $value;
        }

        return $features;
    }

    public static function formatFeaturesForDisplay(mixed $features): string
    {
        $map = $features;

        if (! is_array($map)) {
            if (is_string($map)) {
                $decoded = json_decode($map, true);

                if (is_string($decoded)) {
                    $decoded = json_decode($decoded, true);
                }

                $map = json_last_error() === JSON_ERROR_NONE ? $decoded : [];
            } else {
                $map = [];
            }
        }

        if (! array_is_list($map)) {
            return collect($map)
                ->filter(fn ($value) => (bool) $value)
                ->keys()
                ->implode(', ');
        }

        return collect($map)
            ->map(function ($item) {
                if (is_array($item)) {
                    return (string) ($item['key'] ?? '');
                }

                return (string) $item;
            })
            ->filter()
            ->implode(', ');
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                TextColumn::make('name')
                    ->label('Name')
                    ->searchable()
                    ->sortable(),
                TextColumn::make('type')
                    ->label('Type')
                    ->badge()
                    ->color(fn (string $state): string => match ($state) {
                        'endcustomer' => 'info',
                        'reseller' => 'warning',
                        default => 'gray',
                    }),
                TextColumn::make('price')
                    ->label('Price')
                    ->money('EUR')
                    ->sortable(),
                IconColumn::make('max_photos')
                    ->label('Max Photos')
                    ->icon('heroicon-o-photo')
                    ->color('primary'),
                TextColumn::make('features')
                    ->label('Features')
                    ->formatStateUsing(fn ($state) => static::formatFeaturesForDisplay($state))
                    ->limit(50),
            ])
            ->filters([
                //
            ])
            ->actions([
                EditAction::make(),
                DeleteAction::make(),
            ])
            ->bulkActions([
                BulkActionGroup::make([
                    DeleteBulkAction::make(),
                ]),
            ]);
    }

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

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