import { useState } from 'react';
import {
  Box, CircularProgress, Alert, Table, TableBody, TableCell, TableContainer,
  TableHead, TableRow, Paper, Typography, Dialog, DialogTitle,
  DialogContent, IconButton
} from '@mui/material';
import CloseIcon from '@mui/icons-material/Close';
import ArrowUpwardIcon from '@mui/icons-material/ArrowUpward';
import ArrowDownwardIcon from '@mui/icons-material/ArrowDownward';
import RemoveIcon from '@mui/icons-material/Remove';
import { formatFullDateTime, formatCurrency } from '../utils/formatters';
import type { CotizacionBolsa } from '../models/mercadoModels';
import { useApiData } from '../hooks/useApiData';
import { HistoricalChartWidget } from './HistoricalChartWidget';
import { PiChartLineUpBold } from 'react-icons/pi';

const Variacion = ({ value }: { value: number }) => {
  const color = value > 0 ? 'success.main' : value < 0 ? 'error.main' : 'text.secondary';
  const Icon = value > 0 ? ArrowUpwardIcon : value < 0 ? ArrowDownwardIcon : RemoveIcon;
  return (
    <Box component="span" sx={{ display: 'flex', alignItems: 'center', justifyContent: 'center', color }}>
      <Icon sx={{ fontSize: '1rem', mr: 0.5 }} />
      <Typography variant="body2" component="span" sx={{ fontWeight: 'bold' }}>{value.toFixed(2)}%</Typography>
    </Box>
  );
};

export const BolsaUsaWidget = () => {
  const { data, loading, error } = useApiData<CotizacionBolsa[]>('/mercados/bolsa/eeuu');
  const [selectedTicker, setSelectedTicker] = useState<string | null>(null);

  const handleRowClick = (ticker: string) => setSelectedTicker(ticker);
  const handleCloseDialog = () => setSelectedTicker(null);

  const otherStocks = data?.filter(d => d.ticker !== '^GSPC') || [];

  if (loading) {
    return <Box sx={{ display: 'flex', justifyContent: 'center', p: 4 }}><CircularProgress /></Box>;
  }

  if (error) {
    return <Alert severity="error">{error}</Alert>;
  }

  if (!data || data.length === 0) {
    return <Alert severity="info">No hay datos disponibles para el mercado de EEUU.</Alert>;
  }

  return (
    <>
      {/* Renderizamos la tabla solo si hay otras acciones */}
      {otherStocks.length > 0 && (
        <TableContainer component={Paper}>
          <Box sx={{ p: 1, m: 0 }}>
            <Typography variant="caption" sx={{ fontStyle: 'italic', color: 'text.secondary' }}>
              Última actualización de acciones: {formatFullDateTime(otherStocks[0].fechaRegistro)}
            </Typography>
          </Box>
          <Table size="small" aria-label="panel principal eeuu">
            <TableHead>
              <TableRow>
                <TableCell>Símbolo</TableCell>
                <TableCell align="right">Precio Actual</TableCell>
                
                <TableCell align="right" sx={{ display: { xs: 'none', md: 'table-cell' } }}>Apertura</TableCell>
                <TableCell align="right" sx={{ display: { xs: 'none', sm: 'table-cell' } }}>Cierre Anterior</TableCell>

                <TableCell align="center">% Cambio</TableCell>
                <TableCell align="center">Historial</TableCell>
              </TableRow>
            </TableHead>
            <TableBody>
              {otherStocks.map((row) => (
                <TableRow key={row.ticker} hover>
                  <TableCell component="th" scope="row"><Typography variant="body2" sx={{ fontWeight: 'bold' }}>{row.ticker}</Typography></TableCell>
                  <TableCell align="right">{formatCurrency(row.precioActual, 'USD')}</TableCell>
                  
                  <TableCell align="right" sx={{ display: { xs: 'none', md: 'table-cell' } }}>{formatCurrency(row.apertura, 'USD')}</TableCell>
                  <TableCell align="right" sx={{ display: { xs: 'none', sm: 'table-cell' } }}>{formatCurrency(row.cierreAnterior, 'USD')}</TableCell>
                  
                  <TableCell align="center"><Variacion value={row.porcentajeCambio} /></TableCell>
                  <TableCell align="center">
                    <IconButton
                      aria-label={`ver historial de ${row.ticker}`} size="small"
                      onClick={() => handleRowClick(row.ticker)}
                      sx={{ boxShadow: '0 1px 3px rgba(0,0,0,0.1)', transition: 'all 0.2s ease-in-out', '&:hover': { transform: 'scale(1.1)', boxShadow: '0 2px 6px rgba(0,0,0,0.2)' } }}
                    ><PiChartLineUpBold size="18" /></IconButton>
                  </TableCell>
                </TableRow>
              ))}
            </TableBody>
          </Table>
        </TableContainer>
      )}

      <Dialog open={Boolean(selectedTicker)} onClose={handleCloseDialog} maxWidth="md" fullWidth sx={{ '& .MuiDialog-paper': { overflow: 'visible' } }}>
        <IconButton aria-label="close" onClick={handleCloseDialog} sx={{ position: 'absolute', top: -15, right: -15, color: (theme) => theme.palette.grey[500], backgroundColor: 'white', boxShadow: 3, '&:hover': { backgroundColor: 'grey.100' }, }}>
          <CloseIcon />
        </IconButton>
        <DialogTitle sx={{ m: 0, p: 2 }}>Historial de 30 días para: {selectedTicker}</DialogTitle>
        <DialogContent dividers>
          {selectedTicker && <HistoricalChartWidget ticker={selectedTicker} mercado="EEUU" dias={30} />}
        </DialogContent>
      </Dialog>
    </>
  );
};