'use client';

import { forwardRef } from 'react';
import type { Cfdi } from '@horux/shared';

interface CfdiConcepto {
  descripcion: string;
  cantidad: number;
  valorUnitario: number;
  importe: number;
  claveUnidad?: string;
  claveProdServ?: string;
}

interface CfdiInvoiceProps {
  cfdi: Cfdi;
  conceptos?: CfdiConcepto[];
}

const formatCurrency = (value: number) =>
  new Intl.NumberFormat('es-MX', {
    style: 'currency',
    currency: 'MXN',
  }).format(value);

const formatDate = (dateString: string) =>
  new Date(dateString).toLocaleDateString('es-MX', {
    day: '2-digit',
    month: 'long',
    year: 'numeric',
  });

const tipoLabels: Record<string, string> = {
  ingreso: 'Ingreso',
  egreso: 'Egreso',
  traslado: 'Traslado',
  pago: 'Pago',
  nomina: 'Nomina',
};

const formaPagoLabels: Record<string, string> = {
  '01': 'Efectivo',
  '02': 'Cheque nominativo',
  '03': 'Transferencia electrónica',
  '04': 'Tarjeta de crédito',
  '28': 'Tarjeta de débito',
  '99': 'Por definir',
};

const metodoPagoLabels: Record<string, string> = {
  PUE: 'Pago en una sola exhibición',
  PPD: 'Pago en parcialidades o diferido',
};

export const CfdiInvoice = forwardRef<HTMLDivElement, CfdiInvoiceProps>(
  ({ cfdi, conceptos }, ref) => {
    return (
      <div
        ref={ref}
        className="bg-white text-black p-8 max-w-[800px] mx-auto text-sm"
        style={{ fontFamily: 'Arial, sans-serif' }}
      >
        {/* Header */}
        <div className="flex justify-between items-start border-b-2 border-gray-800 pb-4 mb-4">
          <div className="w-32 h-20 bg-gray-200 flex items-center justify-center text-gray-500 text-xs">
            [LOGO]
          </div>
          <div className="text-right">
            <h1 className="text-2xl font-bold text-gray-800">FACTURA</h1>
            <p className="text-gray-600">
              {cfdi.serie && `Serie: ${cfdi.serie} `}
              {cfdi.folio && `Folio: ${cfdi.folio}`}
            </p>
            <p className="text-gray-600">Fecha: {formatDate(cfdi.fechaEmision)}</p>
            <span
              className={`inline-block px-2 py-1 text-xs font-semibold rounded mt-1 ${
                cfdi.estado === 'vigente'
                  ? 'bg-green-100 text-green-800'
                  : 'bg-red-100 text-red-800'
              }`}
            >
              {cfdi.estado === 'vigente' ? 'VIGENTE' : 'CANCELADO'}
            </span>
          </div>
        </div>

        {/* Emisor / Receptor */}
        <div className="grid grid-cols-2 gap-6 mb-6">
          <div className="border border-gray-300 p-4 rounded">
            <h3 className="font-bold text-gray-700 border-b border-gray-200 pb-1 mb-2">
              EMISOR
            </h3>
            <p className="font-semibold">{cfdi.nombreEmisor}</p>
            <p className="text-gray-600">RFC: {cfdi.rfcEmisor}</p>
          </div>
          <div className="border border-gray-300 p-4 rounded">
            <h3 className="font-bold text-gray-700 border-b border-gray-200 pb-1 mb-2">
              RECEPTOR
            </h3>
            <p className="font-semibold">{cfdi.nombreReceptor}</p>
            <p className="text-gray-600">RFC: {cfdi.rfcReceptor}</p>
            {cfdi.usoCfdi && (
              <p className="text-gray-600">Uso CFDI: {cfdi.usoCfdi}</p>
            )}
          </div>
        </div>

        {/* Datos del Comprobante */}
        <div className="border border-gray-300 p-4 rounded mb-6">
          <h3 className="font-bold text-gray-700 border-b border-gray-200 pb-1 mb-2">
            DATOS DEL COMPROBANTE
          </h3>
          <div className="grid grid-cols-4 gap-4 text-sm">
            <div>
              <span className="text-gray-500">Tipo:</span>
              <p className="font-medium">{tipoLabels[cfdi.tipo] || cfdi.tipo}</p>
            </div>
            <div>
              <span className="text-gray-500">Método de Pago:</span>
              <p className="font-medium">
                {cfdi.metodoPago ? metodoPagoLabels[cfdi.metodoPago] || cfdi.metodoPago : '-'}
              </p>
            </div>
            <div>
              <span className="text-gray-500">Forma de Pago:</span>
              <p className="font-medium">
                {cfdi.formaPago ? formaPagoLabels[cfdi.formaPago] || cfdi.formaPago : '-'}
              </p>
            </div>
            <div>
              <span className="text-gray-500">Moneda:</span>
              <p className="font-medium">
                {cfdi.moneda}
                {cfdi.tipoCambio !== 1 && ` (TC: ${cfdi.tipoCambio})`}
              </p>
            </div>
          </div>
        </div>

        {/* Conceptos */}
        {conceptos && conceptos.length > 0 && (
          <div className="mb-6">
            <h3 className="font-bold text-gray-700 border-b border-gray-200 pb-1 mb-2">
              CONCEPTOS
            </h3>
            <table className="w-full text-sm">
              <thead>
                <tr className="bg-gray-100">
                  <th className="text-left p-2 border">Descripción</th>
                  <th className="text-center p-2 border w-20">Cant.</th>
                  <th className="text-right p-2 border w-28">P. Unit.</th>
                  <th className="text-right p-2 border w-28">Importe</th>
                </tr>
              </thead>
              <tbody>
                {conceptos.map((concepto, idx) => (
                  <tr key={idx} className="border-b">
                    <td className="p-2 border">{concepto.descripcion}</td>
                    <td className="text-center p-2 border">{concepto.cantidad}</td>
                    <td className="text-right p-2 border">
                      {formatCurrency(concepto.valorUnitario)}
                    </td>
                    <td className="text-right p-2 border">
                      {formatCurrency(concepto.importe)}
                    </td>
                  </tr>
                ))}
              </tbody>
            </table>
          </div>
        )}

        {/* Totales */}
        <div className="flex justify-end mb-6">
          <div className="w-64">
            <div className="flex justify-between py-1 border-b">
              <span className="text-gray-600">Subtotal:</span>
              <span>{formatCurrency(cfdi.subtotal)}</span>
            </div>
            {cfdi.descuento > 0 && (
              <div className="flex justify-between py-1 border-b">
                <span className="text-gray-600">Descuento:</span>
                <span className="text-red-600">-{formatCurrency(cfdi.descuento)}</span>
              </div>
            )}
            {cfdi.iva > 0 && (
              <div className="flex justify-between py-1 border-b">
                <span className="text-gray-600">IVA (16%):</span>
                <span>{formatCurrency(cfdi.iva)}</span>
              </div>
            )}
            {cfdi.ivaRetenido > 0 && (
              <div className="flex justify-between py-1 border-b">
                <span className="text-gray-600">IVA Retenido:</span>
                <span className="text-red-600">-{formatCurrency(cfdi.ivaRetenido)}</span>
              </div>
            )}
            {cfdi.isrRetenido > 0 && (
              <div className="flex justify-between py-1 border-b">
                <span className="text-gray-600">ISR Retenido:</span>
                <span className="text-red-600">-{formatCurrency(cfdi.isrRetenido)}</span>
              </div>
            )}
            <div className="flex justify-between py-2 font-bold text-lg border-t-2 border-gray-800 mt-1">
              <span>TOTAL:</span>
              <span>{formatCurrency(cfdi.total)}</span>
            </div>
          </div>
        </div>

        {/* Timbre Fiscal */}
        <div className="border-t-2 border-gray-800 pt-4">
          <h3 className="font-bold text-gray-700 mb-2">TIMBRE FISCAL DIGITAL</h3>
          <div className="grid grid-cols-2 gap-4 text-xs">
            <div>
              <p className="text-gray-500">UUID:</p>
              <p className="font-mono break-all">{cfdi.uuidFiscal}</p>
            </div>
            <div>
              <p className="text-gray-500">Fecha de Timbrado:</p>
              <p>{cfdi.fechaTimbrado}</p>
            </div>
          </div>
        </div>
      </div>
    );
  }
);

CfdiInvoice.displayName = 'CfdiInvoice';