<?php

namespace App\Http\Controllers\Repuve;

use App\Http\Controllers\Controller;
use App\Http\Requests\Repuve\CancelConstanciaRequest;
use App\Models\Record;
use App\Models\VehicleTagLog;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Notsoweb\ApiResponse\Enums\ApiResponse;

class CancellationController extends Controller
{

    /**
     * Cancelar la constancia/tag
     */
    public function cancelarConstancia(CancelConstanciaRequest $request)
    {
        try {
            DB::beginTransaction();

            // Buscar el expediente con sus relaciones
            $record = Record::with('vehicle.tag.status')->findOrFail($request->record_id);
            $vehicle = $record->vehicle;
            $tag = $vehicle->tag;

            // Validar que el vehículo tiene un tag asignado
            if (!$tag) {
                return ApiResponse::BAD_REQUEST->response([
                    'message' => 'El vehículo no tiene un tag/constancia asignada.'
                ]);
            }

            // Validar que el tag está en estado activo
            if (!$tag->isAssigned()) {
                return ApiResponse::BAD_REQUEST->response([
                    'message' => 'El tag ya no está activo. Status actual: ' . $tag->status->name
                ]);
            }

            // Validar que el registro no tenga errores previos
            if ($record->error_id !== null) {
                return ApiResponse::BAD_REQUEST->response([
                    'message' => 'No se puede cancelar un registro que tiene errores. El vehículo no fue inscrito.',
                    'error_id' => $record->error_id
                ]);
            }

            // Crear registro en el log de cancelaciones
            $cancellationLog = VehicleTagLog::create([
                'vehicle_id' => $vehicle->id,
                'tag_id' => $tag->id,
                'cancellation_reason' => $request->cancellation_reason,
                'cancellation_observations' => $request->cancellation_observations,
                'cancellation_at' => now(),
                'cancelled_by' => Auth::id(),
            ]);

            // Actualizar estado del tag a 'cancelled' y desasignar vehículo
            $tag->markAsCancelled();

            DB::commit();

            return ApiResponse::OK->response([
                'message' => 'Constancia cancelada exitosamente',
                'cancellation' => [
                    'id' => $cancellationLog->id,
                    'vehicle' => [
                        'id' => $vehicle->id,
                        'placa' => $vehicle->placa,
                        'niv' => $vehicle->niv,
                    ],
                    'tag' => [
                        'id' => $tag->id,
                        'folio' => $tag->folio,
                        'old_status' => $tag->status->name,
                        'new_status' => 'Cancelado',
                    ],
                    'cancellation_reason' => $request->cancellation_reason,
                    'cancellation_observations' => $request->cancellation_observations,
                    'cancelled_at' => $cancellationLog->cancellation_at->toDateTimeString(),
                    'cancelled_by' => Auth::user()->name,
                ]
            ]);
        } catch (\Exception $e) {
            DB::rollBack();

            Log::error('Error en cancelarConstancia: ' . $e->getMessage(), [
                'record_id' => $request->record_id ?? null,
                'cancellation_reason' => $request->cancellation_reason ?? null,
                'trace' => $e->getTraceAsString()
            ]);

            return ApiResponse::BAD_REQUEST->response([
                'message' => 'Error al cancelar la constancia',
                'error' => $e->getMessage()
            ]);
        }
    }
}