import type { ReactNode } from 'react'
import { Box, LinearProgress, Typography } from '@mui/material'
import type { WeightingKey } from '../../domain/needBuilder'
import type { UnifiedMatchResult, VerifiedPortfolioResult, ExternalMarketResult, FutureAvailabilityResult } from '../../domain/unifiedResult'
import { dataQualityHex } from '../../lib/utils'

// ── Helpers ───────────────────────────────────────────────────────────────────

export const HARD_CRITERIA = new Set(['area', 'location', 'budget', 'timing'])

export function getProp(item: UnifiedMatchResult) {
  return item.resultType !== 'FUTURE_AVAILABILITY'
    ? (item as VerifiedPortfolioResult | ExternalMarketResult).property
    : null
}

export function getSig(item: UnifiedMatchResult) {
  return item.resultType === 'FUTURE_AVAILABILITY'
    ? (item as FutureAvailabilityResult).signal
    : null
}

export const RISK_LEVEL_ORDER: Record<string, number> = { CRITICAL: 0, HIGH: 1, MEDIUM: 2, LOW: 3 }

export const CRITERION_ALIASES: Record<WeightingKey, string[]> = {
  area:              ['area', 'Fläche', 'fläche'],
  location:          ['location', 'Standort', 'standort'],
  budget:            ['budget', 'Budget', 'Mietpreis', 'mietpreis'],
  timing:            ['timing', 'Verfügbarkeit', 'verfügbarkeit'],
  prestige:          ['prestige', 'Prestige'],
  accessibility:     ['accessibility', 'ÖV-Anbindung', 'ÖV', 'Erreichbarkeit'],
  expansionPotential:['expansionPotential', 'Expansionspotenzial'],
  flexibility:       ['flexibility', 'Flexibilität'],
  visibility:        ['visibility', 'Sichtbarkeit', 'visibilityScore'],
  footfall:          ['footfall', 'Passantenfrequenz', 'passerbyFrequency'],
  talentAccess:      ['talentAccess', 'Talent-Zugang', 'Talente'],
  esg:               ['esg', 'ESG', 'Nachhaltigkeit'],
  taxEnvironment:    ['taxEnvironment', 'Steuerlast', 'Steuerumfeld'],
}

export function getTitle(item: UnifiedMatchResult): string {
  const prop = getProp(item)
  const sig  = getSig(item)
  return prop?.title ?? sig?.companyName ?? sig?.locationHint ?? item.matchId.slice(0, 8)
}

// ── Row label cell ────────────────────────────────────────────────────────────

export const LABEL_SX = {
  position: 'sticky' as const,
  left: 0,
  bgcolor: 'white',
  zIndex: 1,
  width: 200,
  minWidth: 200,
  color: '#64748b',
  fontSize: 13,
  fontWeight: 600,
  borderRight: '1px solid #e2e8f0',
  verticalAlign: 'top',
  py: 1.5,
}

export const DATA_SX = {
  borderLeft: '1px solid #f1f5f9',
  minWidth: 220,
  verticalAlign: 'top',
  py: 1.5,
}

// ── Score bar helper ──────────────────────────────────────────────────────────

export function scoreBar(value: number, label?: string): ReactNode {
  const color = dataQualityHex(value)
  return (
    <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
      <Box sx={{ width: 70 }}>
        <LinearProgress variant="determinate" value={value * 100}
          sx={{ height: 6, borderRadius: 3, '& .MuiLinearProgress-bar': { bgcolor: color } }} />
      </Box>
      <Typography variant="caption" sx={{ color }}>{label ?? `${Math.round(value * 100)}%`}</Typography>
    </Box>
  )
}