<?php

namespace App\Http\Controllers\Netbien;

use App\Http\Controllers\Controller;
use App\Models\CashClose;
use App\Models\Sale;
use App\Models\SaleItem;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Notsoweb\ApiResponse\Enums\ApiResponse;
use phpseclib3\Crypt\RC2;

/**
 *
 */
class CashCloseController extends Controller
{

    public function index(Request $request)
    {
        $query = CashClose::with('user:id,name')->withCount('sales');

        if ($request->has('status')) {
            $query->where('status', $request->status);
        }

        if ($request->has('date')) {
            $query->whereDate('close_date', $request->date);
        }

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

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

    public function closeCashClose(Request $request)
    {
        $request->validate([
            'exit' => 'sometimes|numeric|min:0',
        ]);

        $cashClose = CashClose::open()->first();

        if (!$cashClose) {
            return ApiResponse::NOT_FOUND->response([
                'message' => 'No hay un corte de caja abierto para cerrar.',
            ]);
        }

        $totalSales = Sale::where('cash_close_id', $cashClose->id)->sum('total_amount');

        $paymentMethods = Sale::where('cash_close_id', $cashClose->id)
            ->select('payment_method', DB::raw('SUM(total_amount) as total'))
            ->groupBy('payment_method')
            ->pluck('total', 'payment_method');

        $exit = $request->input('exit', 0);

        $cashClose->update([
            'closed_at' => now(),
            'income' => $totalSales,
            'exit' => $exit,
            'income_cash' => $paymentMethods->get('cash', 0),
            'income_card' => $paymentMethods->get('card', 0),
            'income_transfer' => $paymentMethods->get('transfer', 0),
            'status' => 'closed',
        ]);

        $balanceFinal = $cashClose->initial_balance + $totalSales - $exit;

        return ApiResponse::OK->response([
            'message' => 'Corte de caja cerrado exitosamente.',
            'cash_close' => $cashClose->fresh('user'),
            'resumen' => [
                'periodo' => [
                    'apertura' => $cashClose->opened_at,
                    'cierre' => $cashClose->closed_at,
                ],
                'totales' => [
                    'fondo_inicial' => $cashClose->initial_balance,
                    'total_ventas' => $totalSales,
                    'efectivo' => $paymentMethods->get('cash', 0),
                    'tarjeta' => $paymentMethods->get('card', 0),
                    'transferencia' => $paymentMethods->get('transfer', 0),
                    'egresos' => $exit,
                    'balance_final' => $balanceFinal,
                ],
            ],
        ]);
    }

    public function report(Request $request)
    {
        $request->validate([
            'start_date' => 'nullable|date',
            'end_date' => 'nullable|date|after_or_equal:start_date',
        ]);

        $query = CashClose::with('user:id,name')->withCount('sales');

        if ($request->has('start_date') && $request->has('end_date')) {
            $query->whereBetween('close_date', [$request->start_date, $request->end_date]);
        } elseif ($request->has('start_date')) {
            $query->whereDate('close_date', '>=', $request->start_date);
        } elseif ($request->has('end_date')) {
            $query->whereDate('close_date', '<=', $request->end_date);
        } else {
            $query->closed()->orderBy('id', 'desc')->limit(1);
        }

        // Información del corte de caja
        $cashCloses = $query->orderBy('id', 'desc')->get();

        if ($cashCloses->isEmpty()) {
            return ApiResponse::NOT_FOUND->response([
                'message' => 'No se encontraron cortes de caja en el rango de fechas especificado.',
            ]);
        }

        $cashCloseIds = $cashCloses->pluck('id')->toArray();

        // Estadísticas por paquete (Total de Paquetes Vendidos por Tipo)
        $packageStats = DB::table('sale_items')
            ->join('sales', 'sale_items.sale_id', '=', 'sales.id')
            ->join('packages', 'sale_items.package_id', '=', 'packages.id')
            ->whereIn('sales.cash_close_id', $cashCloseIds)
            ->select(
                'packages.name as paquete',
                DB::raw('COUNT(*) as total_vendidos'),
                DB::raw('SUM(packages.price) as total_ingresos')
            )
            ->groupBy('packages.id', 'packages.name')
            ->get();

        // Estadísticas por duración (Total de Ventas por Duración)
        $durationStats = DB::table('sale_items')
            ->join('sales', 'sale_items.sale_id', '=', 'sales.id')
            ->join('packages', 'sale_items.package_id', '=', 'packages.id')
            ->whereIn('sales.cash_close_id', $cashCloseIds)
            ->select(
                'packages.period as duracion_dias',
                DB::raw('COUNT(DISTINCT sales.id) as total_ventas')
            )
            ->groupBy('packages.period')
            ->orderBy('packages.period', 'asc')
            ->get();

        // Reporte detallado de ventas
        $detailedSales = SaleItem::whereHas('sale', function ($query) use ($cashCloseIds) {
            $query->whereIn('cash_close_id', $cashCloseIds);
        })
            ->with([
                'sale.client:id,name,paternal,maternal',
                'sale:id,client_id,payment_method',
                'simCard:id,iccid,msisdn',
                'package:id,name,price'
            ])
            ->orderBy('id', 'asc')
            ->paginate(config('app.pagination'))
            ->through(function ($item) {
                return [
                    'nombre_comprador' => $item->sale->client->full_name,
                    'id_sim' => $item->simCard->iccid,
                    'numero_asignado' => $item->simCard->msisdn,
                    'paquete' => $item->package->name,
                    'costo' => $item->package->price,
                    'medio_pago' => $item->sale->payment_method
                ];
            });

        $totalIncome = $cashCloses->sum('income');
        $totalExit = $cashCloses->sum('exit');
        $totalCash = $cashCloses->sum('income_cash');
        $totalCard = $cashCloses->sum('income_card');
        $totalTransfer = $cashCloses->sum('income_transfer');
        $balanceFinal = $cashCloses->sum('initial_balance') + $totalIncome - $totalExit;


        return ApiResponse::OK->response([
            'cash_closes' => $cashCloses,
            'periodo' => [
                'inicio' => $cashCloses->last()?->opened_at,
                'fin' => $cashCloses->first()?->closed_at,
            ],
            'resumen_financiero' => [
                'total_ventas' => $totalIncome,
                'efectivo' => $totalCash,
                'tarjeta' => $totalCard,
                'transferencia' => $totalTransfer,
                'egresos' => $totalExit,
                'balance_final' => $balanceFinal,
            ],
            'ventas_paquete' => $packageStats,
            'ventas_duracion' => $durationStats,
            'ventas_detalladas' => $detailedSales,
        ]);
    }

    public function exportReport(Request $request)
    {
        $request->validate([
            'start_date' => 'nullable|date',
            'end_date' => 'nullable|date|after_or_equal:start_date',
        ]);

        $query = CashClose::with('user:id,name')->withCount('sales');

        if ($request->has('start_date') && $request->has('end_date')) {
            $query->whereBetween('close_at', [$request->start_date, $request->end_date]);
        } elseif ($request->has('start_date')) {
            $query->whereDate('close_at', '>=', $request->start_date);
        } elseif ($request->has('end_date')) {
            $query->whereDate('close_at', '<=', $request->end_date);
        } else {
            $query->closed()->orderBy('id', 'desc')->limit(1);
        }

        $cashCloses = $query->orderBy('id', 'desc')->get();

        if ($cashCloses->isEmpty()) {
            return ApiResponse::NOT_FOUND->response([
                'message' => 'No se encontraron cortes de caja en el rango de fechas especificado.',
            ]);
        }

        $cashCloseIds = $cashCloses->pluck('id')->toArray();

        // Obtener ventas detalladas
        $detailedSales = SaleItem::whereHas('sale', function ($query) use ($cashCloseIds) {
            $query->whereIn('cash_close_id', $cashCloseIds);
        })
            ->with([
                'sale.client:id,name,paternal,maternal',
                'sale:id,client_id,payment_method',
                'simCard:id,iccid,msisdn',
                'package:id,name,price'
            ])
            ->orderBy('id', 'asc')
            ->get();

        // Calcular totales
        $totalIncome = $cashCloses->sum('income');
        $totalExit = $cashCloses->sum('exit');
        $totalCash = $cashCloses->sum('income_cash');
        $totalCard = $cashCloses->sum('income_card');
        $totalTransfer = $cashCloses->sum('income_transfer');

        // Crear el CSV
        $filename = 'reporte_corte_caja_' . date('Y-m-d_His') . '.csv';

        $headers = [
            'Content-Type' => 'text/csv; charset=UTF-8',
            'Content-Disposition' => 'attachment; filename="' . $filename . '"',
        ];

        $callback = function () use ($cashCloses, $detailedSales, $totalIncome, $totalExit, $totalCash, $totalCard, $totalTransfer) {
        $file = fopen('php://output', 'w');

            fprintf($file, chr(0xEF) . chr(0xBB) . chr(0xBF));

            // RESUMEN FINANCIERO
            fputcsv($file, ['RESUMEN FINANCIERO', '']);
            fputcsv($file, ['Periodo Inicio', $cashCloses->last()?->opened_at]);
            fputcsv($file, ['Periodo Fin', $cashCloses->first()?->closed_at]);
            fputcsv($file, ['Total Ventas', number_format($totalIncome, 2)]);
            fputcsv($file, ['Efectivo', number_format($totalCash, 2)]);
            fputcsv($file, ['Tarjeta', number_format($totalCard, 2)]);
            fputcsv($file, ['Transferencia', number_format($totalTransfer, 2)]);
            fputcsv($file, ['Egresos', number_format($totalExit, 2)]);
            fputcsv($file, []);

            // VENTAS DETALLADAS
            fputcsv($file, ['VENTAS DETALLADAS']);
            fputcsv($file, ['Nombre Comprador', 'ID SIM', 'Número Asignado', 'Paquete', 'Costo', 'Medio de Pago']);

            foreach ($detailedSales as $item) {
                fputcsv($file, [
                    $item->sale->client->full_name,
                    "'" . $item->simCard->iccid . "'",
                    "'" . $item->simCard->msisdn . "'",
                    $item->package->name,
                    number_format($item->package->price, 2),
                    ucfirst($item->sale->payment_method)
                ]);
            }

            fclose($file);
        };

        return response()->stream($callback, 200, $headers);
    }
}