<?php

namespace App\Filament\Resources;

use App\Filament\Resources\TimelineGroupResource\Pages;
use App\Filament\Resources\TimelineGroupResource\RelationManagers;
use App\Models\TimelineGroup;
use Filament\Forms;
use Filament\Forms\Form;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Table;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\SoftDeletingScope;

class TimelineGroupResource extends Resource
{
    protected static ?string $model = TimelineGroup::class;

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

    protected static ?string $navigationLabel = 'Timeline';

    protected static ?string $modelLabel = 'Timeline Group';

    protected static ?string $pluralModelLabel = 'Timeline Groups';

    protected static ?int $navigationSort = 4;

    public static function form(Form $form): Form
    {
        return $form
            ->schema([
                Forms\Components\Section::make('Group Information')
                    ->schema([
                        Forms\Components\TextInput::make('title')
                            ->label('Title (e.g., 2023-2024)')
                            ->required()
                            ->maxLength(255),
                        Forms\Components\Textarea::make('subtitle')
                            ->label('Subtitle')
                            ->rows(2)
                            ->columnSpanFull(),
                        Forms\Components\Grid::make(3)
                            ->schema([
                                Forms\Components\TextInput::make('sort')
                                    ->label('Sort Order')
                                    ->required()
                                    ->numeric()
                                    ->default(999)
                                    ->minValue(0),
                                Forms\Components\Select::make('status')
                                    ->label('Status')
                                    ->required()
                                    ->options([
                                        'draft' => 'Draft',
                                        'publish' => 'Publish',
                                    ])
                                    ->default('publish'),
                                Forms\Components\DateTimePicker::make('published_at')
                                    ->label('Publish Date')
                                    ->placeholder('Leave empty for immediate publish'),
                            ]),
                    ])
                    ->columns(1),

                Forms\Components\Section::make('Years')
                    ->schema([
                        Forms\Components\Repeater::make('years')
                            ->relationship()
                            ->schema([
                                Forms\Components\Grid::make(4)
                                    ->schema([
                                        Forms\Components\TextInput::make('year')
                                            ->label('Year')
                                            ->required()
                                            ->numeric()
                                            ->minValue(1900)
                                            ->maxValue(2100)
                                            ->unique(
                                                table: 'timeline_years',
                                                column: 'year',
                                                ignoreRecord: true,
                                                modifyRuleUsing: function ($rule, $get, $record) {
                                                    $groupId = $get('../../id') ?? $record?->group_id ?? null;

                                                    return $rule->where('group_id', $groupId);
                                                }
                                            ),
                                        Forms\Components\FileUpload::make('image')
                                            ->label('Image')
                                            ->image()
                                            ->directory('timeline')
                                            ->placeholder('Default: /images/img-timeline.png'),
                                        Forms\Components\TextInput::make('sort')
                                            ->label('Sort')
                                            ->required()
                                            ->numeric()
                                            ->default(999)
                                            ->minValue(0),
                                        Forms\Components\Select::make('status')
                                            ->label('Status')
                                            ->required()
                                            ->options([
                                                'draft' => 'Draft',
                                                'publish' => 'Publish',
                                            ])
                                            ->default('publish'),
                                    ]),
                                Forms\Components\DateTimePicker::make('published_at')
                                    ->label('Publish Date')
                                    ->placeholder('Leave empty for immediate publish'),

                                Forms\Components\Repeater::make('items')
                                    ->relationship()
                                    ->schema([
                                        Forms\Components\Grid::make(3)
                                            ->schema([
                                                Forms\Components\TextInput::make('title')
                                                    ->label('Title')
                                                    ->required()
                                                    ->maxLength(255)
                                                    ->columnSpan(2),
                                                Forms\Components\Select::make('type')
                                                    ->label('Type')
                                                    ->required()
                                                    ->options([
                                                        'aia' => 'AIA',
                                                        'ai' => 'AI',
                                                    ]),
                                            ]),
                                        Forms\Components\Grid::make(2)
                                            ->schema([
                                                Forms\Components\TextInput::make('sort')
                                                    ->label('Sort')
                                                    ->required()
                                                    ->numeric()
                                                    ->default(999)
                                                    ->minValue(0),
                                                Forms\Components\Select::make('status')
                                                    ->label('Status')
                                                    ->required()
                                                    ->options([
                                                        'draft' => 'Draft',
                                                        'publish' => 'Publish',
                                                    ])
                                                    ->default('publish'),
                                            ]),
                                    ])
                                    ->label('Items (Stories)')
                                    ->defaultItems(0)
                                    ->collapsed()
                                    ->itemLabel(fn (array $state): ?string => $state['title'] ?? null)
                                    ->orderColumn('sort')
                                    ->reorderable(true)
                                    ->collapsible(),
                            ])
                            ->label('Timeline Years')
                            ->defaultItems(0)
                            ->collapsed()
                            ->itemLabel(fn (array $state): ?string => isset($state['year']) ? "Year {$state['year']}" : null)
                            ->orderColumn('sort')
                            ->reorderable(true)
                            ->collapsible(),
                    ])
                    ->columns(1),
            ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('title')
                    ->label('Title')
                    ->searchable()
                    ->sortable(),
                Tables\Columns\TextColumn::make('subtitle')
                    ->label('Subtitle')
                    ->limit(50)
                    ->searchable()
                    ->toggleable(),
                Tables\Columns\TextColumn::make('years_count')
                    ->label('Years')
                    ->counts('years')
                    ->sortable(),
                Tables\Columns\TextColumn::make('sort')
                    ->label('Sort')
                    ->numeric()
                    ->sortable(),
                Tables\Columns\BadgeColumn::make('status')
                    ->label('Status')
                    ->colors([
                        'secondary' => 'draft',
                        'success' => 'publish',
                    ])
                    ->sortable(),
                Tables\Columns\TextColumn::make('published_at')
                    ->label('Publish Date')
                    ->dateTime()
                    ->sortable()
                    ->toggleable(),
                Tables\Columns\TextColumn::make('updated_at')
                    ->label('Updated At')
                    ->dateTime()
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
            ])
            ->filters([
                Tables\Filters\SelectFilter::make('status')
                    ->options([
                        'draft' => 'Draft',
                        'publish' => 'Publish',
                    ]),
                Tables\Filters\Filter::make('published_at')
                    ->form([
                        Forms\Components\DatePicker::make('published_from')
                            ->label('Published From'),
                        Forms\Components\DatePicker::make('published_until')
                            ->label('Published Until'),
                    ])
                    ->query(function (Builder $query, array $data): Builder {
                        return $query
                            ->when(
                                $data['published_from'],
                                fn (Builder $query, $date): Builder => $query->whereDate('published_at', '>=', $date),
                            )
                            ->when(
                                $data['published_until'],
                                fn (Builder $query, $date): Builder => $query->whereDate('published_at', '<=', $date),
                            );
                    }),
            ])
            ->actions([
                Tables\Actions\ViewAction::make(),
                Tables\Actions\EditAction::make(),
                Tables\Actions\DeleteAction::make(),
            ])
            ->bulkActions([
                // Bulk delete disabled as per spec
            ])
            ->defaultSort('sort', 'asc');
    }

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

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