import { Box, Chip, Paper, Typography } from '@mui/material'
import { Banknote, Calendar, HardHat, MapPin, Maximize2, Tag } from 'lucide-react'
import type { Match } from '../../domain/match'
import type { Property } from '../../domain/property'
import type { FutureSignal } from '../../domain/futureSignal'

interface FactRowProps {
  icon: React.ReactNode
  label: string
  value: string
}

function FactRow({ icon, label, value }: FactRowProps) {
  return (
    <Box sx={{ display: 'flex', alignItems: 'center', gap: 1.5, py: 1, borderBottom: '1px solid #f1f5f9' }}>
      <Box sx={{ color: '#64748b', flexShrink: 0 }}>{icon}</Box>
      <Typography variant="body2" color="text.secondary" sx={{ minWidth: 140 }}>{label}</Typography>
      <Typography variant="body2" sx={{ fontWeight: 500 }}>{value}</Typography>
    </Box>
  )
}

interface Props {
  match: Match
  property: Property | null
  signal: FutureSignal | null
}

export function PropertyOverviewPanel({ match, property, signal }: Props) {
  if (!property && !signal) return null

  const isFuture = match.resultType === 'FUTURE_AVAILABILITY'

  const rows: FactRowProps[] = isFuture ? [
    { icon: <MapPin size={15} />, label: 'Standorthinweis', value: signal?.locationHint ?? '–' },
    { icon: <Maximize2 size={15} />, label: 'Flächenschätzung', value: signal?.areaSqmEstimate ? `~${signal.areaSqmEstimate} m²` : 'unbekannt' },
    { icon: <Calendar size={15} />, label: 'Zeithorizont', value: signal?.timeHorizonMonths ? `~${signal.timeHorizonMonths} Monate` : '–' },
    { icon: <Tag size={15} />, label: 'Wahrscheinlichkeit', value: signal?.probability ? `${Math.round(signal.probability * 100)}%` : '–' },
  ] : [
    { icon: <MapPin size={15} />, label: 'Standort', value: property ? `${property.location.city}${property.location.district ? `, ${property.location.district}` : ''}` : '–' },
    { icon: <Maximize2 size={15} />, label: 'Nutzfläche', value: property ? `${property.areaSqm} m²` : '–' },
    { icon: <Banknote size={15} />, label: 'Mietpreis', value: property?.rentPricePerSqm ? `CHF ${property.rentPricePerSqm}/m²/Jahr` : '–' },
    { icon: <Calendar size={15} />, label: 'Verfügbar ab', value: property?.availabilityDate ?? '–' },
    { icon: <Tag size={15} />, label: 'Objekttyp', value: property?.assetType ?? '–' },
    ...(property?.hardFacts?.fitOut ? [{
      icon: <HardHat size={15} />,
      label: 'Ausbaustandard',
      value: (() => {
        const LABELS: Record<string, string> = { SHELL: 'Rohbau', BASIC: 'Basisausbau', FULL: 'Vollausbau', PREMIUM: 'Premiumausbau' }
        const base = LABELS[property.hardFacts!.fitOut!] ?? property.hardFacts!.fitOut!
        const mab = property.hardFacts!.mieterausbaubeitragPerSqm
        return mab ? `${base} + CHF ${mab}/m² MAB` : base
      })(),
    }] : []),
  ]

  return (
    <Paper sx={{ p: 2.5, mb: 2 }}>
      <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', mb: 1.5 }}>
        <Typography variant="h6" sx={{ fontWeight: 700 }}>
          {isFuture ? 'Signal-Übersicht' : 'Objekt-Übersicht'}
        </Typography>
        {property?.status && (
          <Chip label={property.status} size="small" variant="outlined" />
        )}
      </Box>
      {rows.map((row, i) => (
        <FactRow key={i} {...row} />
      ))}
      {property?.description && (
        <Typography variant="body2" color="text.secondary" sx={{ mt: 1.5, fontStyle: 'italic' }}>
          {property.description}
        </Typography>
      )}
    </Paper>
  )
}