<?php namespace App\Http\Controllers\Netbien;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\Sale;
use App\Models\SaleItem;
use App\Models\Client;
use App\Models\Packages;
use App\Models\SimCard;
use App\Models\ClientSim;
use App\Enums\SimCardStatus;
use App\Http\Requests\Netbien\SaleStoreRequest;
use App\Http\Requests\Netbien\SaleUpdateRequest;
use App\Services\CashCloseService;
use Illuminate\Support\Facades\DB;
use Notsoweb\ApiResponse\Enums\ApiResponse;

/**
 */
class SaleController extends Controller
{
    public function index(Request $request)
    {
        $query = Sale::with([
            'client:id,name,paternal,maternal,email',
            'saleItems.simCard:id,iccid,msisdn',
            'saleItems.package:id,name,price'
        ]);

        // Filtro por fecha
        if ($request->has('date')) {
            $query->whereDate('sale_date', $request->date);
        }

        // Filtro por cliente
        if ($request->has('client_id')) {
            $query->where('client_id', $request->client_id);
        }

        // Filtro por método de pago
        if ($request->has('payment_method')) {
            $query->where('payment_method', $request->payment_method);
        }

        $sales = $query->orderBy('id', 'asc')
                    ->paginate(config('app.pagination'));

        return ApiResponse::OK->response([
            'Sale' => $sales,
        ]);
    }

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

            if ($request->has('client_id')) {
                $client = Client::findOrFail($request->client_id);
            } else {
                $client = Client::create($request->client);
            }

            $total = 0;
            foreach ($request->saleItems as $item) {
                $package = Packages::findOrFail($item['package_id']);
                $total += $package->price;
            }

             $cashClose = CashCloseService::getOrCreateOpenCashClose();

            $sale = Sale::create([
                'client_id' => $client->id,
                'cash_close_id' => $cashClose->id,
                'total_amount' => $total,
                'payment_method' => $request->payment_method,
                'sale_date' => now(),
            ]);

            foreach ($request->saleItems as $item) {
                $sim = SimCard::findOrFail($item['sim_card_id']);
                $package = Packages::findOrFail($item['package_id']);

                if ($sim->status !== SimCardStatus::AVAILABLE) {
                    throw new \Exception("La SIM {$sim->msisdn} no está disponible");
                }

                SaleItem::create([
                    'sale_id' => $sale->id,
                    'sim_card_id' => $sim->id,
                    'package_id' => $package->id,
                ]);

                ClientSim::create([
                    'client_id' => $client->id,
                    'sim_card_id' => $sim->id,
                    'assigned_at' => now(),
                    'is_active' => true,
                ]);

                $sim->packages()->attach($package->id, [
                    'activated_at' => now(),
                    'is_active' => true,
                ]);

                $sim->update(['status' => SimCardStatus::ASSIGNED]);
            }

            DB::commit();

            $sale->load([
                'client',
                'saleItems.simCard',
                'saleItems.package'
            ]);

            return ApiResponse::CREATED->response([
                'Sale' => $sale,
                'message' => 'Venta registrada exitosamente',
            ]);

        } catch (\Exception $e) {
            DB::rollBack();

            return ApiResponse::INTERNAL_ERROR->response([
                'message' => 'Error al registrar la venta',
                'error' => $e->getMessage(),
            ]);
        }
    }

    public function update(SaleUpdateRequest $request, Sale $sale)
    {
        $sale->update($request->only(['payment_method']));

        return ApiResponse::OK->response([
            'data' => $sale,
            'message' => 'Venta actualizada exitosamente',
        ]);
    }

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

            // Obtener todos los items de la venta
            $items = $sale->items;

            foreach ($items as $item) {
                $sim = $item->simCard;

                // Desactivar el paquete de la SIM
                $sim->packages()
                    ->wherePivot('package_id', $item->package_id)
                    ->wherePivot('is_active', true)
                    ->update([
                        'is_active' => false,
                        'deactivated_at' => now()
                    ]);

                //Liberar la SIM del cliente
                ClientSim::where('client_id', $sale->client_id)
                        ->where('sim_card_id', $sim->id)
                        ->where('is_active', true)
                        ->update([
                            'is_active' => false,
                            'released_at' => now()
                        ]);

                //Cambiar status de la SIM a disponible
                $sim->update(['status' => SimCardStatus::AVAILABLE]);
            }

            //Eliminar la venta (cascade)
            $sale->delete();

            DB::commit();

            return ApiResponse::NO_CONTENT->response();

        } catch (\Exception $e) {
            DB::rollBack();

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