<template>
  <div class="flex flex-col h-full">
    <!-- Header with close button -->
    <div class="flex-shrink-0 p-4 border-b border-white/10">
      <div class="flex items-center justify-between">
        <div class="flex items-center gap-2">
          <div
            class="flex items-center justify-center w-6 h-6 rounded-full"
            :style="{ backgroundColor: badgeColor }"
          >
            <Icon :name="entityIcon" size="14" class="text-white" />
          </div>
          <h3 class="font-semibold text-base text-white">{{ entityName }}</h3>
        </div>
        <button class="btn btn-ghost btn-xs btn-circle text-white/60 hover:text-white" @click="emit('close')">
          <Icon name="lucide:x" size="16" />
        </button>
      </div>
    </div>

    <!-- Content (scrollable) -->
    <div class="flex-1 overflow-y-auto p-4">
      <!-- Loading state -->
      <div v-if="loading" class="flex items-center justify-center py-8">
        <span class="loading loading-spinner loading-md text-white" />
      </div>

      <!-- Content -->
      <div v-else-if="entity" class="flex flex-col gap-4">
        <!-- Entity Info Header (text, not card) -->
        <div class="mb-2">
          <!-- Location for hub/supplier -->
          <p v-if="entityLocation" class="text-sm text-white/70 flex items-center gap-1">
            <Icon name="lucide:map-pin" size="14" />
            {{ entityLocation }}
          </p>

          <!-- Price for offer -->
          <p v-if="entityType === 'offer' && entity?.pricePerUnit" class="text-sm text-white/70 flex items-center gap-1">
            <Icon name="lucide:tag" size="14" />
            {{ formatPrice(entity.pricePerUnit) }} {{ entity.currency || 'RUB' }}/{{ entity.unit || 't' }}
          </p>

          <!-- Supplier for offer (clickable name) -->
          <button
            v-if="entityType === 'offer' && entity?.teamUuid"
            class="text-sm text-primary hover:underline flex items-center gap-1 mt-1"
            @click="emit('open-info', 'supplier', entity.teamUuid)"
          >
            <Icon name="lucide:factory" size="14" />
            <span v-if="loadingSuppliers" class="loading loading-spinner loading-xs" />
            <span v-else>{{ supplierDisplayName || $t('catalog.info.supplier') }}</span>
          </button>
        </div>

        <!-- KYC Teaser Section (for supplier) -->
        <section v-if="entityType === 'supplier' && kycTeaser" class="bg-white/5 rounded-lg p-3">
          <h3 class="text-sm font-semibold text-white/80 mb-2 flex items-center gap-2">
            <Icon name="lucide:shield-check" size="16" />
            {{ $t('catalog.info.kycTeaser') }}
          </h3>

          <div class="flex flex-col gap-2 text-sm">
            <!-- Company Type -->
            <div class="flex items-center justify-between">
              <span class="text-white/60">{{ $t('catalog.info.companyType') }}</span>
              <span class="text-white">{{ kycTeaser.companyType }}</span>
            </div>

            <!-- Registration Year -->
            <div class="flex items-center justify-between">
              <span class="text-white/60">{{ $t('catalog.info.registrationYear') }}</span>
              <span class="text-white">{{ kycTeaser.registrationYear }}</span>
            </div>

            <!-- Status -->
            <div class="flex items-center justify-between">
              <span class="text-white/60">{{ $t('catalog.info.status') }}</span>
              <span :class="kycTeaser.isActive ? 'text-success' : 'text-error'">
                {{ kycTeaser.isActive ? $t('catalog.info.active') : $t('catalog.info.inactive') }}
              </span>
            </div>

            <!-- Sources Count -->
            <div class="flex items-center justify-between">
              <span class="text-white/60">{{ $t('catalog.info.sourcesCount') }}</span>
              <span class="text-white">{{ kycTeaser.sourcesCount }}</span>
            </div>
          </div>

          <!-- View Full Profile Button -->
          <button
            class="btn btn-ghost btn-xs text-primary mt-3 w-full"
            @click="emit('open-kyc', kycProfileUuid)"
          >
            <Icon name="lucide:external-link" size="14" />
            {{ $t('catalog.info.viewFullKyc') }}
          </button>
        </section>

        <!-- Products Section (for hub/supplier) - hide when product selected -->
        <section v-if="(entityType === 'hub' || entityType === 'supplier') && !selectedProduct">
          <h3 class="text-sm font-semibold text-white/80 mb-2 flex items-center gap-2">
            <Icon name="lucide:package" size="16" />
            {{ productsSectionTitle }}
            <span v-if="loadingProducts" class="loading loading-spinner loading-xs" />
            <span v-else-if="relatedProducts.length > 0" class="text-white/50">({{ relatedProducts.length }})</span>
          </h3>

          <div v-if="!loadingProducts && relatedProducts.length === 0" class="text-white/50 text-sm py-2">
            {{ $t('catalog.empty.noProducts') }}
          </div>
          <div v-else-if="!loadingProducts" class="flex flex-col gap-2">
            <ProductCard
              v-for="(product, index) in relatedProducts"
              :key="product.uuid ?? index"
              :product="product"
              compact
              selectable
              @select="onProductSelect(product)"
            />
          </div>
        </section>

        <!-- Offers Section (after product selected) -->
        <section v-if="(entityType === 'hub' || entityType === 'supplier') && selectedProduct">
          <div class="flex items-center justify-between mb-2">
            <h3 class="text-sm font-semibold text-white/80 flex items-center gap-2">
              <Icon name="lucide:shopping-bag" size="16" />
              {{ $t('catalog.headers.offers') }}
              <span v-if="loadingOffers" class="loading loading-spinner loading-xs" />
              <span v-else-if="offersWithPrice.length > 0" class="text-white/50">({{ offersWithPrice.length }})</span>
            </h3>
            <button class="btn btn-ghost btn-xs text-white/60" @click="emit('select-product', null)">
              <Icon name="lucide:x" size="14" />
              {{ $t('common.cancel') }}
            </button>
          </div>

          <div v-if="!loadingOffers && offersWithPrice.length === 0" class="text-white/50 text-sm py-2">
            {{ $t('catalog.empty.noOffers') }}
          </div>
          <div v-else-if="!loadingOffers" class="flex flex-col gap-2">
            <OfferResultCard
              v-for="(offer, index) in offersWithPrice"
              :key="offer.uuid ?? index"
              :location-name="offer.locationName || offer.locationCountry || offer.locationName"
              :product-name="offer.productName"
              :price-per-unit="offer.pricePerUnit ? Number(offer.pricePerUnit) : null"
              :currency="offer.currency"
              :unit="offer.unit"
              :stages="getOfferStages(offer)"
              @select="onOfferSelect(offer)"
            />
          </div>
        </section>

        <!-- Suppliers Section (for hub only) -->
        <section v-if="entityType === 'hub'">
          <h3 class="text-sm font-semibold text-white/80 mb-2 flex items-center gap-2">
            <Icon name="lucide:factory" size="16" />
            {{ $t('catalog.info.suppliersNearby') }}
            <span v-if="loadingSuppliers" class="loading loading-spinner loading-xs" />
            <span v-else-if="relatedSuppliers.length > 0" class="text-white/50">({{ relatedSuppliers.length }})</span>
          </h3>

          <div v-if="!loadingSuppliers && relatedSuppliers.length === 0" class="text-white/50 text-sm py-2">
            {{ $t('catalog.info.noSuppliers') }}
          </div>
          <div v-else-if="!loadingSuppliers" class="flex flex-col gap-2">
            <SupplierCard
              v-for="(supplier, index) in relatedSuppliers"
              :key="supplier.uuid ?? index"
              :supplier="supplier"
              selectable
              @select="onSupplierSelect(supplier)"
            />
          </div>
        </section>

        <!-- Hubs Section (for supplier/offer) -->
        <section v-if="entityType === 'supplier' || entityType === 'offer'">
          <h3 class="text-sm font-semibold text-white/80 mb-2 flex items-center gap-2">
            <Icon name="lucide:warehouse" size="16" />
            {{ $t('catalog.info.nearestHubs') }}
            <span v-if="loadingHubs" class="loading loading-spinner loading-xs" />
            <span v-else-if="relatedHubs.length > 0" class="text-white/50">({{ relatedHubs.length }})</span>
          </h3>

          <div v-if="!loadingHubs && relatedHubs.length === 0" class="text-white/50 text-sm py-2">
            {{ $t('catalog.info.noHubs') }}
          </div>
          <div v-else-if="!loadingHubs" class="space-y-4">
            <template v-if="railHubs.length">
              <Card padding="small" class="border border-white/10 bg-white/5">
                <div class="flex items-center gap-2">
                  <div class="w-8 h-8 rounded-lg bg-white/10 flex items-center justify-center">
                    <Icon name="lucide:train-front" size="16" class="text-white/80" />
                  </div>
                  <div class="text-sm text-white/80">{{ $t('catalog.info.railHubs') }}</div>
                </div>
              </Card>
              <div class="flex flex-col gap-2">
                <HubCard
                  v-for="(hub, index) in railHubs"
                  :key="hub.uuid ?? index"
                  :hub="hub"
                  selectable
                  @select="onHubSelect(hub)"
                />
              </div>
            </template>

            <template v-if="seaHubs.length">
              <Card padding="small" class="border border-white/10 bg-white/5">
                <div class="flex items-center gap-2">
                  <div class="w-8 h-8 rounded-lg bg-white/10 flex items-center justify-center">
                    <Icon name="lucide:ship" size="16" class="text-white/80" />
                  </div>
                  <div class="text-sm text-white/80">{{ $t('catalog.info.seaHubs') }}</div>
                </div>
              </Card>
              <div class="flex flex-col gap-2">
                <HubCard
                  v-for="(hub, index) in seaHubs"
                  :key="hub.uuid ?? index"
                  :hub="hub"
                  selectable
                  @select="onHubSelect(hub)"
                />
              </div>
            </template>
          </div>
        </section>

        <!-- Add to filter button -->
        <button class="btn btn-primary btn-sm mt-2" @click="emit('add-to-filter')">
          <Icon name="lucide:filter-plus" size="16" />
          {{ $t('catalog.info.addToFilter') }}
        </button>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import type { InfoEntityType } from '~/composables/useCatalogSearch'
import type {
  InfoEntity,
  InfoProductItem,
  InfoHubItem,
  InfoSupplierItem,
  InfoOfferItem
} from '~/composables/useCatalogInfo'
import type { RouteStageType } from '~/composables/graphql/public/geo-generated'

const props = defineProps<{
  entityType: InfoEntityType
  entityId: string
  entity: InfoEntity | null
  relatedProducts?: InfoProductItem[]
  relatedHubs?: InfoHubItem[]
  relatedSuppliers?: InfoSupplierItem[]
  relatedOffers?: InfoOfferItem[]
  selectedProduct?: string | null
  currentTab?: string
  loading?: boolean
  loadingProducts?: boolean
  loadingHubs?: boolean
  loadingSuppliers?: boolean
  loadingOffers?: boolean
}>()

const emit = defineEmits<{
  'close': []
  'add-to-filter': []
  'open-info': [type: InfoEntityType, uuid: string]
  'select-product': [uuid: string | null]
  'select-offer': [offer: { uuid: string; productUuid?: string | null }]
  'update:current-tab': [tab: string]
  'open-kyc': [uuid: string | undefined]
}>()

const { t } = useI18n()
const { entityColors } = useCatalogSearch()

// Safe accessors for optional arrays
const relatedProducts = computed(() => props.relatedProducts ?? [])
const relatedHubs = computed(() => props.relatedHubs ?? [])
const relatedSuppliers = computed(() => props.relatedSuppliers ?? [])
const relatedOffers = computed(() => props.relatedOffers ?? [])
const offersWithPrice = computed(() =>
  relatedOffers.value.filter(o => o?.pricePerUnit != null)
)

// Entity name
const entityName = computed(() => {
  return props.entity?.name || props.entity?.productName || props.entityId.slice(0, 8) + '...'
})

// Entity location (address, city, country)
const entityLocation = computed(() => {
  if (!props.entity) return null
  const parts = [props.entity.address, props.entity.city, props.entity.country].filter(Boolean)
  return parts.length > 0 ? parts.join(', ') : null
})

// Products section title based on entity type
const productsSectionTitle = computed(() => {
  return props.entityType === 'hub'
    ? t('catalog.info.productsHere')
    : t('catalog.info.productsFromSupplier')
})

// Badge color
const badgeColor = computed(() => {
  if (props.entityType === 'hub') return entityColors.hub
  if (props.entityType === 'supplier') return entityColors.supplier
  if (props.entityType === 'offer') return entityColors.offer
  return '#666'
})

const entityIcon = computed(() => {
  if (props.entityType === 'hub') return 'lucide:warehouse'
  if (props.entityType === 'supplier') return 'lucide:factory'
  if (props.entityType === 'offer') return 'lucide:shopping-bag'
  return 'lucide:info'
})

// Supplier name for offer (from entity or relatedSuppliers)
const supplierDisplayName = computed(() => {
  if (props.entity?.supplierName) return props.entity.supplierName
  if (props.entity?.teamName) return props.entity.teamName
  if (relatedSuppliers.value.length > 0 && relatedSuppliers.value[0]?.name) {
    return relatedSuppliers.value[0].name
  }
  return null
})

// Format price
const formatPrice = (price: number | string) => {
  const num = typeof price === 'string' ? parseFloat(price) : price
  return new Intl.NumberFormat('ru-RU').format(num)
}

const railHubs = computed(() =>
  relatedHubs.value.filter(h => h.transportTypes?.includes('rail'))
)

const seaHubs = computed(() =>
  relatedHubs.value.filter(h => h.transportTypes?.includes('sea'))
)

// Mock KYC teaser data (will be replaced with real data later)
const kycTeaser = computed(() => {
  if (props.entityType !== 'supplier') return null
  // Mock data for now
  return {
    companyType: 'ООО',
    registrationYear: 2018,
    isActive: true,
    sourcesCount: 3
  }
})

// KYC Profile UUID - use real if available, otherwise mock for demo
const MOCK_KYC_UUID = 'demo-kyc-profile'
const kycProfileUuid = computed(() => {
  return props.entity?.kycProfileUuid || MOCK_KYC_UUID
})

// Handlers for selecting related items
const onProductSelect = (product: InfoProductItem) => {
  emit('select-product', product.uuid)
}

const onOfferSelect = (offer: InfoOfferItem) => {
  if (offer.uuid) {
    emit('select-offer', { uuid: offer.uuid, productUuid: offer.productUuid })
  }
}

const onHubSelect = (hub: InfoHubItem) => {
  if (hub.uuid) {
    emit('open-info', 'hub', hub.uuid)
  }
}

const onSupplierSelect = (supplier: InfoSupplierItem) => {
  if (supplier.uuid) {
    emit('open-info', 'supplier', supplier.uuid)
  }
}

const getOfferStages = (offer: InfoOfferItem) => {
  const route = offer.routes?.[0]
  if (!route?.stages) return []
  return route.stages
    .filter((stage): stage is NonNullable<RouteStageType> => stage !== null)
    .map(stage => ({
      transportType: stage.transportType,
      distanceKm: stage.distanceKm
    }))
}
</script>
