import { Alert, Box, Card, Divider, Typography } from '@mui/material'
import { MapPin } from 'lucide-react'
import { MatchCardHeader } from './MatchCardHeader'
import { MatchReasonList } from './MatchReasonList'
import { TradeoffList } from './TradeoffList'
import { MatchDataQualitySummary } from './MatchDataQualitySummary'
import { MatchActionToolbar } from './MatchActionToolbar'
import { MatchCardRestrictedState } from './MatchCardRestrictedState'
import type { MatchCardViewModel } from './MatchCardViewModel'

interface Props {
  vm: MatchCardViewModel
}

export function MatchCardExpanded({ vm }: Props) {
  if (vm.isRestricted) return <MatchCardRestrictedState />

  return (
    <Card sx={{ p: 3, mb: 2 }}>
      {/* FUTURE_AVAILABILITY disclaimer — mandatory */}
      {vm.disclaimer && (
        <Alert severity="warning" sx={{ mb: 2 }}>
          {vm.disclaimer}
        </Alert>
      )}

      {vm.isReviewRequired && (
        <Alert severity="info" sx={{ mb: 2 }}>
          Manuelle Überprüfung erforderlich
        </Alert>
      )}

      <MatchCardHeader vm={vm} />

      {/* Primary summary zone */}
      <Box sx={{ mt: 2, mb: 2 }}>
        <Typography variant="h6" sx={{ fontWeight: 700 }}>
          {vm.title}
        </Typography>
        <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5, mt: 0.5 }}>
          <MapPin size={14} color="#64748b" />
          <Typography variant="body2" color="text.secondary">{vm.locationLabel}</Typography>
        </Box>
        {vm.availabilityLabel && (
          <Typography variant="body2" color="text.secondary" sx={{ mt: 0.25 }}>
            Verfügbar: {vm.availabilityLabel}
          </Typography>
        )}
        {vm.explainabilitySummary && (
          <Typography
            variant="body2"
            color="text.secondary"
            sx={{ mt: 1, p: 1.5, bgcolor: '#f8fafc', borderRadius: 1, borderLeft: '3px solid #e2e8f0' }}
          >
            {vm.explainabilitySummary}
          </Typography>
        )}
      </Box>

      <Divider sx={{ mb: 2 }} />

      {/* Why it matches — all 3 reasons */}
      {vm.reasons.length > 0 && (
        <Box sx={{ mb: 2 }}>
          <MatchReasonList reasons={vm.reasons} maxItems={3} />
        </Box>
      )}

      {/* Tradeoffs — up to 3 */}
      {vm.tradeoffs.length > 0 && (
        <>
          <Divider sx={{ mb: 1.5 }} />
          <Box sx={{ mb: 2 }}>
            <TradeoffList tradeoffs={vm.tradeoffs} maxItems={3} />
          </Box>
        </>
      )}

      {/* Data quality — full view */}
      <Divider sx={{ mb: 1.5 }} />
      <Box sx={{ mb: 2 }}>
        <MatchDataQualitySummary
          dataQualityScore={vm.dataQualityScore}
          missingData={vm.missingData}
        />
      </Box>

      {vm.sourceLabel && (
        <Typography variant="caption" color="text.secondary" sx={{ display: 'block', mb: 1.5 }}>
          Quelle: {vm.sourceLabel}
          {vm.externalUrl && (
            <a href={vm.externalUrl} target="_blank" rel="noopener noreferrer" style={{ marginLeft: 4 }}>
              ↗
            </a>
          )}
        </Typography>
      )}

      <MatchActionToolbar actions={vm.actions} />
    </Card>
  )
}