<?php

namespace App\Filament\Tenant\Resources;

use App\Filament\Tenant\Resources\VehicleResource\Pages;
use App\Models\Tenant\Client;
use App\Models\Tenant\Vehicle;
use Filament\Forms;
use Filament\Resources\Resource;
use Filament\Schemas\Schema;
use Filament\Actions;
use Filament\Schemas;
use Filament\Tables;
use Filament\Tables\Table;

class VehicleResource extends Resource
{
    protected static ?string $model = Vehicle::class;

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

    protected static ?string $navigationLabel = 'Automobile';

    protected static ?string $modelLabel = 'mașină';

    protected static ?string $pluralModelLabel = 'mașini';

    protected static ?int $navigationSort = 20;

    public static function getGloballySearchableAttributes(): array
    {
        return ['plate', 'vin', 'make', 'model'];
    }

    public static function getGlobalSearchResultTitle(\Illuminate\Database\Eloquent\Model $record): string
    {
        return trim(($record->make ?? '') . ' ' . ($record->model ?? '') . ' — ' . ($record->plate ?? $record->vin ?? '?'));
    }

    public static function getGlobalSearchResultDetails(\Illuminate\Database\Eloquent\Model $record): array
    {
        return [
            'Client' => $record->client?->name ?? '—',
            'An' => $record->year ?? '—',
        ];
    }

    public static function form(Schema $schema): Schema
    {
        return $schema->components([
            Schemas\Components\Section::make('Identificare')
                ->columns(2)
                ->schema([
                    Forms\Components\Select::make('client_id')
                        ->label('Proprietar')
                        ->options(fn () => Client::pluck('name', 'id'))
                        ->searchable()
                        ->required(),
                    Forms\Components\TextInput::make('plate')->label('Nr. înmatriculare')->maxLength(16),
                    Forms\Components\TextInput::make('make')->label('Marca')->required()->maxLength(60),
                    Forms\Components\TextInput::make('model')->required()->maxLength(60),
                    Forms\Components\TextInput::make('year')->numeric()->minValue(1950)->maxValue(2100),
                    Forms\Components\TextInput::make('vin')->maxLength(32),
                ]),
            Schemas\Components\Section::make('Tehnice')
                ->columns(2)
                ->schema([
                    Forms\Components\TextInput::make('engine')->maxLength(60),
                    Forms\Components\TextInput::make('gearbox')->maxLength(60),
                    Forms\Components\Select::make('fuel')
                        ->options([
                            'Benzină' => 'Benzină', 'Diesel' => 'Diesel', 'Hybrid' => 'Hybrid',
                            'EV' => 'Electric', 'GPL' => 'GPL', 'GNC' => 'GNC',
                        ]),
                    Forms\Components\Select::make('vehicle_class')
                        ->label('Clasă (pentru pricing)')
                        ->options(\App\Models\Tenant\PricingCoefficient::VEHICLE_CLASSES)
                        ->helperText('Folosită de coeficienții de preț. Hibrid/EV se deduc și din combustibil.'),
                    Forms\Components\TextInput::make('mileage')->label('Kilometraj')->numeric()->default(0),
                    Forms\Components\TextInput::make('color')->maxLength(40),
                ]),
            Forms\Components\Textarea::make('notes')->label('Notițe')->columnSpanFull()->rows(3),
        ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('plate')->label('Nr.')->searchable(),
                Tables\Columns\TextColumn::make('make')->sortable(),
                Tables\Columns\TextColumn::make('model'),
                Tables\Columns\TextColumn::make('year'),
                Tables\Columns\TextColumn::make('client.name')->label('Proprietar')->searchable(),
                Tables\Columns\TextColumn::make('vin')->toggleable(isToggledHiddenByDefault: true),
                Tables\Columns\TextColumn::make('mileage')->label('Km')->numeric(),
                Tables\Columns\TextColumn::make('created_at')->date()->sortable(),
            ])
            ->actions([
                Actions\Action::make('decode_vin')
                    ->label('Decode VIN')
                    ->icon('heroicon-m-cpu-chip')
                    ->color('gray')
                    ->visible(fn (\App\Models\Tenant\Vehicle $r) => ! empty($r->vin) && strlen($r->vin) === 17)
                    ->modalHeading(fn (\App\Models\Tenant\Vehicle $r) => 'Decode VIN: ' . $r->vin)
                    ->modalSubmitAction(false)
                    ->modalCancelActionLabel('Închide')
                    ->modalContent(function (\App\Models\Tenant\Vehicle $r) {
                        $info = app(\App\Services\Ai\VinDecoder::class)->decode($r->vin);
                        return view('filament.tenant.vin-decode', ['info' => $info, 'vehicle' => $r]);
                    }),
                Actions\Action::make('ai_recommend')
                    ->label('AI: recomandări')
                    ->icon('heroicon-m-sparkles')
                    ->color('primary')
                    ->visible(fn (\App\Models\Tenant\Vehicle $r) => ! empty($r->vin))
                    ->modalHeading('Recomandări AI')
                    ->modalSubmitAction(false)
                    ->modalCancelActionLabel('Închide')
                    ->modalContent(function (\App\Models\Tenant\Vehicle $r) {
                        [$reply, $meta] = app(\App\Services\Ai\AiAssistantService::class)
                            ->vinRecommendations($r->vin, (int) $r->mileage);
                        return view('filament.tenant.ai-reply', ['reply' => $reply, 'meta' => $meta]);
                    }),
                Actions\EditAction::make(),
                Actions\DeleteAction::make(),
            ])
            ->emptyStateHeading('Nicio mașină încă')
            ->emptyStateDescription('Adaugă mașini manual sau importă din CSV. Folosește VIN-căutare pentru decoder rapid și completare automată brand/model/an.')
            ->emptyStateIcon('heroicon-o-truck')
            ->defaultSort('created_at', 'desc');
    }

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