import { Clock, Gauge, Globe, Tags } from 'lucide-react'

import { KpiStatGrid, type KpiStatItem } from '@/components/kpi-stat-grid'
import { Badge } from '@/components/reui/badge'
import { KpiStatGridSkeleton } from '@/components/skeletons'
import { formatDateTime, moduleIntervalLabel } from '@/lib/modules/display'
import { communityLabel, moduleDohProfileIds } from '@/lib/modules/helpers'
import { dohPolicyRu } from '@/lib/ui-labels'
import type { AsEntry, BgpCommunity, ModuleRow } from '@/types/api'

interface ModuleKpiCardsProps {
  mod: ModuleRow | null
  communities: BgpCommunity[]
  asEntries: AsEntry[]
  entriesCount?: number
  loading?: boolean
}

export function ModuleKpiCards({
  mod,
  communities,
  asEntries,
  entriesCount = 0,
  loading = false,
}: ModuleKpiCardsProps) {
  if (loading || !mod) {
    return <KpiStatGridSkeleton count={4} />
  }

  const asPrefixTotal = asEntries.reduce((acc, entry) => acc + (entry.prefix_count ?? 0), 0)
  const dohIds = moduleDohProfileIds(mod)
  const isDomains = mod.type === 'DOMAINS'
  const isAsPrefixes = mod.type === 'AS_PREFIXES'
  const community = communityLabel(mod.default_community_id, communities)

  const entriesFooter = isAsPrefixes ? (
    <Badge variant="success-light" size="sm">
      {asEntries.length} AS · в модуле
    </Badge>
  ) : isDomains ? (
    <Badge variant="outline" size="sm">
      {mod.default_community_id ? community : 'без community'}
    </Badge>
  ) : (
    <Badge variant="success-light" size="sm">
      {entriesCount} · в модуле
    </Badge>
  )

  const policyItem: KpiStatItem = isDomains
    ? {
        id: 'doh',
        icon: <Globe aria-hidden />,
        iconClassName: 'text-primary',
        value: dohIds.length > 0 ? String(dohIds.length) : '—',
        label: 'DoH',
        footer: (
          <Badge variant={dohIds.length > 0 ? 'info-light' : 'outline'} size="sm">
            {dohIds.length > 0 ? dohPolicyRu(mod.doh_resolver_policy) : 'без DoH'}
          </Badge>
        ),
      }
    : {
        id: 'community',
        icon: <Globe aria-hidden />,
        iconClassName: 'text-primary',
        value: community,
        label: 'Community',
        footer: (
          <Badge variant="outline" size="sm">
            по умолчанию
          </Badge>
        ),
      }

  const items: KpiStatItem[] = [
    {
      id: 'priority',
      icon: <Gauge aria-hidden />,
      iconClassName: 'text-info',
      value: String(mod.priority ?? 0),
      label: 'Приоритет',
      footer: (
        <Badge variant={mod.enabled !== false ? 'success-light' : 'outline'} size="sm">
          {mod.enabled !== false ? 'активен' : 'выключен'} · {mod.type}
        </Badge>
      ),
    },
    {
      id: 'interval',
      icon: <Clock aria-hidden />,
      iconClassName: 'text-warning',
      value: moduleIntervalLabel(mod),
      label: 'Интервал обновления',
      footer: (
        <Badge variant="primary-light" size="sm">
          {formatDateTime(mod.last_refreshed_at) || 'никогда'}
        </Badge>
      ),
    },
    {
      id: 'prefixes',
      icon: <Tags aria-hidden />,
      iconClassName: 'text-success',
      value: isAsPrefixes ? String(asPrefixTotal) : String(entriesCount),
      label: isAsPrefixes ? 'Префиксы AS' : 'Записи модуля',
      footer: entriesFooter,
    },
    policyItem,
  ]

  return <KpiStatGrid items={items} aria-label="KPI модуля" />
}