GestionIntegralWeb/Frontend/src/components/Modals/Suscripciones/PagoManualModal.tsx

// Archivo: Frontend/src/components/Modals/Suscripciones/PagoManualModal.tsx

import React, { useState, useEffect } from 'react';
import { Modal, Box, Typography, TextField, Button, CircularProgress, Alert, FormControl, InputLabel, Select, MenuItem, type SelectChangeEvent, InputAdornment } from '@mui/material';
import type { FacturaDto } from '../../../models/dtos/Suscripciones/FacturaDto';
import type { CreatePagoDto } from '../../../models/dtos/Suscripciones/CreatePagoDto';
import type { FormaPagoDto } from '../../../models/dtos/Suscripciones/FormaPagoDto';
import formaPagoService from '../../../services/Suscripciones/formaPagoService';

const modalStyle = {
  position: 'absolute' as 'absolute',
  top: '50%',
  left: '50%',
  transform: 'translate(-50%, -50%)',
  width: { xs: '95%', sm: '80%', md: '500px' },
  bgcolor: 'background.paper',
  border: '2px solid #000',
  boxShadow: 24,
  p: 4,
  maxHeight: '90vh',
  overflowY: 'auto'
};

interface PagoManualModalProps {
  open: boolean;
  onClose: () => void;
  onSubmit: (data: CreatePagoDto) => Promise<void>;
  factura: FacturaDto | null;
  errorMessage?: string | null;
  clearErrorMessage: () => void;
}

const PagoManualModal: React.FC<PagoManualModalProps> = ({ open, onClose, onSubmit, factura, errorMessage, clearErrorMessage }) => {
  const [formData, setFormData] = useState<Partial<CreatePagoDto>>({});
  const [formasDePago, setFormasDePago] = useState<FormaPagoDto[]>([]);
  const [loading, setLoading] = useState(false);
  const [loadingFormasPago, setLoadingFormasPago] = useState(false);
  const [localErrors, setLocalErrors] = useState<{ [key: string]: string | null }>({});

  useEffect(() => {
    const fetchFormasDePago = async () => {
      setLoadingFormasPago(true);
      try {
        const data = await formaPagoService.getAllFormasDePago();
        setFormasDePago(data.filter(fp => !fp.requiereCBU));
      } catch (error) {
        setLocalErrors(prev => ({ ...prev, formasDePago: 'Error al cargar formas de pago.' }));
      } finally {
        setLoadingFormasPago(false);
      }
    };

    if (open && factura) {
      fetchFormasDePago();
      setFormData({
        idFactura: factura.idFactura,
        monto: factura.importeFinal,
        fechaPago: new Date().toISOString().split('T')[0]
      });
      setLocalErrors({});
    }
  }, [open, factura]);

  const validate = (): boolean => {
    const errors: { [key: string]: string | null } = {};
    if (!formData.idFormaPago) errors.idFormaPago = "Seleccione una forma de pago.";
    if (!formData.monto || formData.monto <= 0) errors.monto = "El monto debe ser mayor a cero.";
    if (!formData.fechaPago) errors.fechaPago = "La fecha de pago es obligatoria.";
    setLocalErrors(errors);
    return Object.keys(errors).length === 0;
  };

  const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    const { name, value } = e.target;
    const finalValue = name === 'monto' && value !== '' ? parseFloat(value) : value;
    setFormData(prev => ({ ...prev, [name]: finalValue }));
    if (localErrors[name]) setLocalErrors(prev => ({ ...prev, [name]: null }));
    if (errorMessage) clearErrorMessage();
  };
  
  const handleSelectChange = (e: SelectChangeEvent<any>) => {
    const { name, value } = e.target;
    setFormData(prev => ({ ...prev, [name]: value }));
    if (localErrors[name]) setLocalErrors(prev => ({ ...prev, [name]: null }));
    if (errorMessage) clearErrorMessage();
  };

  const handleSubmit = async (e: React.FormEvent<HTMLFormElement>) => {
    e.preventDefault();
    clearErrorMessage();
    if (!validate()) return;

    setLoading(true);
    let success = false;
    try {
      await onSubmit(formData as CreatePagoDto);
      success = true;
    } catch (error) {
      success = false;
    } finally {
      setLoading(false);
      if (success) onClose();
    }
  };

  if (!factura) return null;

  return (
    <Modal open={open} onClose={onClose}>
      <Box sx={modalStyle}>
        <Typography variant="h6">Registrar Pago Manual</Typography>
        <Typography variant="body2" color="text.secondary" gutterBottom>
          Factura #{factura.idFactura} para {factura.nombreSuscriptor}
        </Typography>
        <Box component="form" onSubmit={handleSubmit} sx={{ mt: 2 }}>
            <TextField name="fechaPago" label="Fecha de Pago" type="date" value={formData.fechaPago || ''} onChange={handleInputChange} required fullWidth margin="dense" InputLabelProps={{ shrink: true }} error={!!localErrors.fechaPago} helperText={localErrors.fechaPago} />
            <FormControl fullWidth margin="dense" error={!!localErrors.idFormaPago}>
                <InputLabel id="forma-pago-label" required>Forma de Pago</InputLabel>
                <Select name="idFormaPago" labelId="forma-pago-label" value={formData.idFormaPago || ''} onChange={handleSelectChange} label="Forma de Pago" disabled={loadingFormasPago}>
                    {formasDePago.map(fp => <MenuItem key={fp.idFormaPago} value={fp.idFormaPago}>{fp.nombre}</MenuItem>)}
                </Select>
            </FormControl>
            <TextField name="monto" label="Monto Pagado" type="number" value={formData.monto || ''} onChange={handleInputChange} required fullWidth margin="dense" error={!!localErrors.monto} helperText={localErrors.monto} InputProps={{ startAdornment: <InputAdornment position="start">$</InputAdornment> }} inputProps={{ step: "0.01" }} />
            <TextField name="referencia" label="Referencia (Opcional)" value={formData.referencia || ''} onChange={handleInputChange} fullWidth margin="dense" />
            <TextField name="observaciones" label="Observaciones (Opcional)" value={formData.observaciones || ''} onChange={handleInputChange} fullWidth margin="dense" multiline rows={2} />

            {errorMessage && <Alert severity="error" sx={{ mt: 2 }}>{errorMessage}</Alert>}

            <Box sx={{ mt: 3, display: 'flex', justifyContent: 'flex-end', gap: 1 }}>
              <Button onClick={onClose} color="secondary" disabled={loading}>Cancelar</Button>
              <Button type="submit" variant="contained" disabled={loading || loadingFormasPago}>
                {loading ? <CircularProgress size={24} /> : 'Registrar Pago'}
              </Button>
            </Box>
        </Box>
      </Box>
    </Modal>
  );
};

export default PagoManualModal;