<?php

namespace App\Http\Controllers;

use App\Http\Requests\Repuve\BoxStoreRequest;
use App\Http\Requests\Repuve\BoxUpdateRequest;
use App\Models\Box;
use App\Models\Package;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Notsoweb\ApiResponse\Enums\ApiResponse;

class BoxController extends Controller
{
    public function index(Request $request)
    {
        try {
            $boxes = Box::with(['package:id,lot,description'])->withCount('tags')->orderBy('id', 'ASC');

            if ($request->filled('package')) {
                $boxes->where('package_id', $request->input('package'));
            }

            if ($request->filled('box_number')) {
                $boxes->where('box_number', 'LIKE', '%' . $request->box_number . '%');
            }

            if ($request->filled('lote')) {
                $boxes->whereHas('package', function ($query) use ($request) {
                    $query->where('lot', 'LIKE', '%' . $request->lot . '%');
                });
            }

            return ApiResponse::OK->response([
                'boxes' => $boxes->paginate(config('app.pagination'))
            ]);
        } catch (\Exception $e) {
            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al obtener las cajas',
                'error' => $e->getMessage(),
            ]);
        }
    }

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

            $box = Box::create([
                'box_number' => $request->input('box_number'),
                'package_id' => $request->input('package_id'),
                'starting_page' => $request->input('starting_page'),
                'ending_page' => $request->input('ending_page'),
            ]);

            $package = Package::find($request->input('package_id'));
            if ($package) {
                $package->increment('total_boxes');
            }

            DB::commit();

            return ApiResponse::CREATED->response([
                'message' => 'Caja creada exitosamente',
                'box' => $box,
            ]);
        } catch (\Exception $e) {
            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al crear la caja',
                'error' => $e->getMessage(),
            ]);
        }
    }

    public function show($id)
    {
        try {
            $box = Box::with(['package:id,lot,description,total_boxes', 'tags' => function ($query) {
                $query->with(['status:id,name', 'module:id,name'])
                    ->orderBy('folio', 'ASC');
            }])->withCount('tags')->findOrFail($id);

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

    public function update(BoxUpdateRequest $request, $id)
    {
        try {
            $box = Box::findOrFail($id);

            DB::beginTransaction();

            $oldPackageId = $box->package_id;
            $newPackageId = $request->input('package_id');

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

            if ($oldPackageId != $newPackageId) {
                Package::find($oldPackageId)?->decrement('total_boxes');
                Package::find($newPackageId)?->increment('total_boxes');
            }

            DB::commit();

            return ApiResponse::OK->response([
                'message' => 'Caja actualizada exitosamente',
                'box' => $box,
            ]);
        } catch (\Exception $e) {
            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al actualizar la caja',
                'error' => $e->getMessage(),
            ]);
        }
    }

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

            $box = Box::findOrFail($id);

            // Verificar si tiene tags antes de eliminar
            if ($box->tags()->count() > 0) {
                return ApiResponse::BAD_REQUEST->response([
                    'message' => 'No se puede eliminar la caja porque tiene tags asociados.',
                    'tags_count' => $box->tags()->count(),
                ]);
            }

            $packageId = $box->package_id;
            $box->delete();

            // Decrementar el contador de cajas del paquete
            Package::find($packageId)?->decrement('total_boxes');

            DB::commit();

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