import { Alert, Box, Button, Card, Chip, Divider, Stack, Typography } from '@mui/material'
import { Banknote, Bookmark, Calendar, Columns2, MapPin, Maximize2 } from 'lucide-react'
import type { UnifiedMatchResult } from '../../domain/unifiedResult'
import type { Property } from '../../domain/property'
import type { FutureSignal } from '../../domain/futureSignal'
import { ResultConfidenceSummary } from './ResultConfidenceSummary'
import { ResultTypeBadge } from './ResultTypeBadge'

function scoreColor(score: number): string {
  if (score >= 78) return '#1a7a4a'
  if (score >= 52) return '#d97706'
  return '#c0392b'
}

interface Props {
  result: UnifiedMatchResult
  isInCompare: boolean
  onCompare: (propertyId: string) => void
}

export function UnifiedResultCard({ result, isInCompare, onCompare }: Props) {
  const { match, matchScore, resultType } = result

  const isFuture = resultType === 'FUTURE_AVAILABILITY'
  const property: Property | undefined = !isFuture ? (result as { property: Property }).property : undefined
  const signal: FutureSignal | undefined = isFuture ? (result as { signal: FutureSignal }).signal : undefined

  const compareId = property?.id ?? ''

  const title     = property?.title ?? signal?.companyName ?? signal?.locationHint ?? '–'
  const city      = property?.location?.city ?? signal?.locationHint ?? '–'
  const areaSqm   = property?.areaSqm ?? signal?.areaSqmEstimate
  const rent      = property?.rentPricePerSqm
  const available = property?.availabilityDate
  const dqScore   = property?.dataQuality?.score

  return (
    <Card sx={{ p: 2.5, mb: 1.5 }}>
      {/* FUTURE_AVAILABILITY disclaimer — always shown, non-dismissable */}
      {isFuture && (
        <Alert severity="warning" sx={{ mb: 1.5, py: 0.5 }}>
          {signal?.disclaimer ?? 'Probabilistisches Signal – kein bestätigtes Objekt'}
        </Alert>
      )}

      {/* Header */}
      <Box sx={{ display: 'flex', alignItems: 'flex-start', justifyContent: 'space-between', mb: 1.5 }}>
        <Box sx={{ display: 'flex', alignItems: 'center', gap: 1.5 }}>
          <ResultTypeBadge resultType={resultType} />
          <Typography variant="h6" sx={{ fontWeight: 600 }}>{title}</Typography>
        </Box>
        <Box sx={{ display: 'flex', alignItems: 'baseline', gap: 0.5 }}>
          <Typography variant="h4" sx={{ fontWeight: 800, color: scoreColor(matchScore) }}>
            {matchScore}
          </Typography>
          <Typography variant="body2" color="text.secondary">/100</Typography>
        </Box>
      </Box>

      {/* Key facts */}
      <Stack direction="row" spacing={2.5} sx={{ mb: 1.5, flexWrap: 'wrap' }}>
        <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5 }}>
          <MapPin size={14} color="#64748b" />
          <Typography variant="body2" color="text.secondary">{city}</Typography>
        </Box>
        {areaSqm !== undefined && (
          <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5 }}>
            <Maximize2 size={14} color="#64748b" />
            <Typography variant="body2" color="text.secondary">{areaSqm} m²</Typography>
          </Box>
        )}
        {rent !== undefined && (
          <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5 }}>
            <Banknote size={14} color="#64748b" />
            <Typography variant="body2" color="text.secondary">CHF {rent}/m²</Typography>
          </Box>
        )}
        {available && (
          <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5 }}>
            <Calendar size={14} color="#64748b" />
            <Typography variant="body2" color="text.secondary">{available}</Typography>
          </Box>
        )}
        {isFuture && signal?.timeHorizonMonths && (
          <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.5 }}>
            <Calendar size={14} color="#64748b" />
            <Typography variant="body2" color="text.secondary">
              ~{signal.timeHorizonMonths} Monate · {Math.round(signal.probability * 100)}% Wahrscheinlichkeit
            </Typography>
          </Box>
        )}
      </Stack>

      <Divider sx={{ mb: 1.5 }} />

      {/* Positive factors */}
      {match.positiveFactors.length > 0 && (
        <Box sx={{ mb: 1 }}>
          <Typography variant="caption" sx={{ fontWeight: 600, display: 'block', mb: 0.5 }} color="text.secondary">
            Positive Faktoren
          </Typography>
          <Stack direction="row" spacing={0.5} sx={{ flexWrap: 'wrap', gap: 0.5 }}>
            {match.positiveFactors.slice(0, 3).map((f, i) => (
              <Chip
                key={i}
                label={f.criterion}
                size="small"
                sx={{ bgcolor: '#f0fdf4', color: '#1a7a4a', border: '1px solid #bbf7d0', fontSize: 11 }}
              />
            ))}
          </Stack>
        </Box>
      )}

      {/* Tradeoffs */}
      {(match.tradeoffs?.length ?? 0) > 0 && (
        <Alert severity="warning" sx={{ py: 0.5, px: 1.5, mb: 1, '& .MuiAlert-message': { fontSize: 12 } }}>
          <Typography variant="caption" sx={{ fontWeight: 600, display: 'block', mb: 0.5 }}>Abwägungen</Typography>
          {match.tradeoffs.slice(0, 2).map((t, i) => (
            <Typography key={i} variant="caption" sx={{ display: 'block' }}>
              {t.criterion}: {t.concern}
            </Typography>
          ))}
        </Alert>
      )}

      {/* Confidence + data quality */}
      <Box sx={{ mb: 1.5 }}>
        <ResultConfidenceSummary confidenceLevel={match.confidenceLevel} dataQualityScore={dqScore} />
      </Box>

      {/* Actions */}
      <Box sx={{ display: 'flex', justifyContent: 'flex-end', gap: 1 }}>
        <Button variant="outlined" size="small" startIcon={<Bookmark size={14} />} disabled>
          Shortlist
        </Button>
        {!isFuture && (
          <Button
            variant={isInCompare ? 'contained' : 'outlined'}
            size="small"
            startIcon={<Columns2 size={14} />}
            onClick={() => onCompare(compareId)}
            sx={isInCompare ? { bgcolor: '#1e3a5f' } : {}}
          >
            Vergleichen
          </Button>
        )}
        <Button
          variant="contained"
          size="small"
          disabled
          sx={{ bgcolor: '#1e3a5f', '&:hover': { bgcolor: '#162d4a' } }}
        >
          Details
        </Button>
      </Box>
    </Card>
  )
}
