import React, { Component } from 'react';
import Grid from '@mui/material/Grid';
import CardMedia from '@mui/material/CardMedia';
import Typography from '@mui/material/Typography';
import Box from '@mui/material/Box';
import Stack from '@mui/material/Stack';
import CircularProgress from '@mui/material/CircularProgress';
import { Link } from 'react-router-dom';
import IconButton from '@mui/material/IconButton';
import ZoomInIcon from '@mui/icons-material/ZoomIn';

class ExtrasSelector extends Component {
  formatPrice(price) {
    return new Intl.NumberFormat('de-DE', {
      style: 'currency',
      currency: 'EUR'
    }).format(price);
  }

  // Render product image using working code from GrowTentKonfigurator
  renderProductImage(product) {
    if (!window.smallPicCache) {
      window.smallPicCache = {};
    }

    const pictureList = product.pictureList;
    
    if (!pictureList || pictureList.length === 0 || !pictureList.split(',').length) {
      return (
        <CardMedia
          component="img"
          height="160"
          image="/assets/images/nopicture.jpg"
          alt={product.name || 'Produktbild'}
          sx={{ 
            objectFit: 'contain', 
            width: '100%'
          }}
        />
      );
    }

    const bildId = pictureList.split(',')[0];
    
    if (window.smallPicCache[bildId]) {
      return (
        <CardMedia
          component="img"
          height="160"
          image={window.smallPicCache[bildId]}
          alt={product.name || 'Produktbild'}
          sx={{ 
            objectFit: 'contain', 
            width: '100%'
          }}
        />
      );
    }

    // Load image if not cached
    if (!this.loadingImages) this.loadingImages = new Set();
    if (!this.loadingImages.has(bildId)) {
      this.loadingImages.add(bildId);
      window.socketManager.emit('getPic', { bildId, size:'small' }, (res) => {
        if (res.success) {
          window.smallPicCache[bildId] = URL.createObjectURL(new Blob([res.imageBuffer], { type: 'image/jpeg' }));
          this.forceUpdate();
        }
        this.loadingImages.delete(bildId);
      });
    }

    return (
      <Box sx={{ height: '160px', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
        <CircularProgress sx={{ color: '#90ffc0' }} />
      </Box>
    );
  }

  renderExtraCard(extra) {
    const { selectedExtras, onExtraToggle, showImage = true } = this.props;
    const isSelected = selectedExtras.includes(extra.id);

    return (
      <Box sx={{
        width: { xs: '100%', sm: '250px' },
        height: '100%',
        display: 'flex',
        flexDirection: 'column',
        borderRadius: '8px',
        overflow: 'hidden',
        cursor: 'pointer',
        border: '2px solid',
        borderColor: isSelected ? '#2e7d32' : '#e0e0e0',
        backgroundColor: isSelected ? '#f1f8e9' : '#ffffff',
        '&:hover': {
          boxShadow: 6,
          borderColor: isSelected ? '#2e7d32' : '#90caf9'
        },
        transition: 'all 0.3s ease'
      }}
      onClick={() => onExtraToggle(extra.id)}>
        {/* Image */}
        {showImage && (
          <Box sx={{
            height: { xs: '240px', sm: '180px' },
            display: 'flex',
            alignItems: 'center',
            justifyContent: 'center',
            backgroundColor: '#ffffff'
          }}>
            {this.renderProductImage(extra)}
          </Box>
        )}

        {/* Content */}
        <Box sx={{ p: 2, flexGrow: 1, display: 'flex', flexDirection: 'column' }}>
          {/* Name */}
          <Typography variant="h6" gutterBottom sx={{ fontWeight: 'bold' }}>
            {extra.name}
          </Typography>

          <Typography gutterBottom>
            {extra.kurzBeschreibung}
          </Typography>

          {/* Price with VAT - Same as other sections */}
          <Typography variant="h6" sx={{ 
            color: '#2e7d32', 
            fontWeight: 'bold', 
            mt: 2,
            display: 'flex', 
            alignItems: 'center', 
            gap: 1,
            flexWrap: 'wrap'
          }}>
            <span>{extra.price ? this.formatPrice(extra.price) : 'Kein Preis'}</span>
            {extra.vat && (
              <small style={{ color: '#77aa77', fontSize: '0.6em' }}>
                (incl. {extra.vat}% MwSt.,*)
              </small>
            )}
          </Typography>

          {/* Selection Indicator - Separate line */}
          {isSelected && (
            <Typography variant="body2" sx={{ 
              color: '#2e7d32', 
              fontWeight: 'bold',
              mt: 1,
              textAlign: 'center'
            }}>
              ✓ Ausgewählt
            </Typography>
          )}
          <Stack direction="row" spacing={1} justifyContent="center">
            <IconButton
              component={Link}
              to={`/Artikel/${extra.seoName}`}
              size="small"
              aria-label="Produktdetails anzeigen"
              sx={{ mr: 1, color: 'text.secondary' }}
              onClick={(event) => event.stopPropagation()}
            >
              <ZoomInIcon />
            </IconButton>
          </Stack>
        </Box>
      </Box>
    );
  }

  render() {
    const { extras, title, subtitle, gridSize = { xs: 12, sm: 6, md: 4 } } = this.props;

    if (!extras || !Array.isArray(extras)) {
      return (
        <Box sx={{ mb: 4 }}>
          <Typography variant="h2" component="h2" gutterBottom sx={{ color: '#2e7d32', fontWeight: 'bold' }}>
            {title}
          </Typography>
          <Typography variant="body1" color="text.secondary" sx={{ mb: 3 }}>
            Keine Extras verfügbar
          </Typography>
        </Box>
      );
    }

    return (
      <Box sx={{ mb: 4 }}>
        <Typography variant="h2" component="h2" gutterBottom sx={{ color: '#2e7d32', fontWeight: 'bold' }}>
          {title}
        </Typography>
        {subtitle && (
          <Typography variant="body1" color="text.secondary" sx={{ mb: 3 }}>
            {subtitle}
          </Typography>
        )}
        <Grid container spacing={2}>
          {extras.map(extra => (
            <Grid item {...gridSize} key={extra.id}>
              {this.renderExtraCard(extra)}
            </Grid>
          ))}
        </Grid>
      </Box>
    );
  }
}

export default ExtrasSelector;