<?php

namespace App\Http\Controllers\Repuve;

use Notsoweb\ApiResponse\Enums\ApiResponse;
use App\Http\Controllers\Controller;
use App\Http\Requests\Repuve\PackageStoreRequest;
use App\Http\Requests\Repuve\PackageUpdateRequest;
use App\Models\CatalogTagStatus;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Http\Request;
use Illuminate\Database\QueryException;
use App\Models\Package;
use App\Models\Tag;

class PackageController extends Controller
{

    public function index(Request $request)
    {
        try {
            $packages = Package::with(['tags'])->withCount('tags')->orderBy('id', 'ASC');

            if ($request->filled('lote')) {
                Log::info('PackageController@index - Filtro lote aplicado', ['lote' => $request->lote]);
                $packages->where('lot', 'LIKE', '%' . $request->lote . '%');
            }

            if ($request->filled('caja')) {
                Log::info('PackageController@index - Filtro caja aplicado', ['caja' => $request->caja]);
                $packages->where('box_number', 'LIKE', '%' . $request->caja . '%');
            }

            Log::info('PackageController@index - Ejecutando query de paginación');
            $paginatedPackages = $packages->paginate(config('app.pagination'));

            Log::info('PackageController@index - Query ejecutado exitosamente', [
                'total' => $paginatedPackages->total(),
                'per_page' => $paginatedPackages->perPage(),
                'current_page' => $paginatedPackages->currentPage(),
            ]);

            // Validación si no hay resultados
            if ($paginatedPackages->isEmpty()) {
                Log::info('PackageController@index - No se encontraron resultados');
                return ApiResponse::NOT_FOUND->response([
                    'message' => 'No se encontraron tags con los criterios de búsqueda proporcionados.',
                    'filters_applied' => array_filter($request->only(['lot', 'box_number']))
                ]);
            }

            Log::info('PackageController@index - Respuesta exitosa');
            return ApiResponse::OK->response([
                'Paquetes' => $paginatedPackages,
            ]);
        } catch (\Exception $e) {
            Log::error('PackageController@index - Error capturado', [
                'message' => $e->getMessage(),
                'file' => $e->getFile(),
                'line' => $e->getLine(),
                'trace' => $e->getTraceAsString(),
            ]);

            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al obtener los paquetes',
                'error' => $e->getMessage(),
            ]);
        }
    }

    public function store(PackageStoreRequest $request)
    {
        try {
            DB::beginTransaction();

            $package = Package::create([
                'lot' => $request->lot,
                'box_number' => $request->box_number,
                'starting_page' => $request->starting_page,
                'ending_page' => $request->ending_page,
            ]);

            // Obtener el status "available" para los tags
            $statusAvailable = CatalogTagStatus::where('code', 'available')->first();

            if (!$statusAvailable) {
                throw new \Exception('No se encontró el status "Disponible" para los tags');
            }

            $existingTags = Tag::whereHas('package', function ($query) use ($request) {
                $query->where('box_number', $request->box_number);
            })
                ->whereBetween('folio', [$request->starting_page, $request->ending_page])
                ->get(['folio', 'package_id']);

            if ($existingTags->isNotEmpty()) {
                DB::rollBack();
                return ApiResponse::BAD_REQUEST->response([
                    'message' => 'Ya existen tags en esta caja con folios en el rango especificado.',
                    'box_number' => $request->box_number,
                    'starting_page' => $request->starting_page,
                    'ending_page' => $request->ending_page,
                    'folios_conflictivos' => $existingTags->pluck('folio')->toArray(),
                    'total_folios_conflictivos' => $existingTags->count(),
                ]);
            }

            // Crear los tags según el rango de páginas
            for ($page = $request->starting_page; $page <= $request->ending_page; $page++) {
                Tag::create([
                    'folio' => $page,
                    'tag_number' => null,
                    'package_id' => $package->id,
                    'status_id' => $statusAvailable->id,
                ]);
            }

            DB::commit();

            return ApiResponse::CREATED->response([
                'message' => 'Paquete registrado exitosamente con sus tags',
                'package' => $package->load('tags'),
                'tags_created' => $package->tags()->count(),
            ]);
        } catch (QueryException $e) {
            DB::rollBack();

            if ($e->getCode() == 23000 && str_contains($e->getMessage(), 'packages_lot_box_unique')) {
                return ApiResponse::BAD_REQUEST->response([
                    'message' => "Ya existe un paquete con el lote '{$request->lot}' y caja número '{$request->box_number}'.",
                ]);
            }

            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al crear el paquete',
                'error' => $e->getMessage(),
            ]);
        } catch (\Exception $e) {
            DB::rollBack();
            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al crear el paquete',
                'error' => $e->getMessage(),
            ]);
        }
    }

    public function show($id)
    {
        try {
            $package = Package::with(['tags'])->findOrFail($id);

            return ApiResponse::OK->response([
                'package' => $package,
            ]);
        } catch (\Exception $e) {
            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al obtener el paquete',
                'error' => $e->getMessage(),
            ]);
        }
    }

    public function update(PackageUpdateRequest $request, $id)
    {
        try {
            $package = Package::findOrFail($id);

            DB::beginTransaction();

            $package->update($request->validated());

            DB::commit();

            return ApiResponse::OK->response([
                'message' => 'Paquete actualizado exitosamente',
                'package' => [
                    'id' => $package->id,
                    'lot' => $package->lot,
                    'box_number' => $package->box_number,
                    'starting_page' => $package->starting_page,
                    'ending_page' => $package->ending_page,
                    'updated_at' => $package->updated_at->format('Y-m-d H:i:s'),
                ],
            ]);
        } catch (\Exception $e) {
            DB::rollBack();
            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al actualizar el paquete',
                'error' => $e->getMessage(),
            ]);
        }
    }

    public function destroy($id)
    {
        try {
            DB::beginTransaction();

            $package = Package::findOrFail($id);

            if ($package->tags()->count() > 0) {
                return ApiResponse::BAD_REQUEST->response([
                    'message' => 'No se puede eliminar el paquete porque tiene tags asociados.',
                    'tags_count' => $package->tags()->count(),
                ]);
            }

            $package->delete();

            DB::commit();

            return ApiResponse::OK->response([
                'message' => 'Paquete eliminado exitosamente.',
            ]);
        } catch (\Exception $e) {
            DB::rollBack();
            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al eliminar el paquete.',
                'error' => $e->getMessage(),
            ]);
        }
    }
}