import type {
  Plan,
  PlanProduct,
  TransportArrangeResult,
  TransportInventoryLink,
  TransportSiteLink
} from '@/api/pl'
import { planApi } from '@/api/pl'
import DbPoundSlipQrcodeDialog from '@/components/business/db/DbPoundSlipQrcodeDialog.vue'
import { useDictStore } from '@/store/modules/dict'
import { formatDate } from '@/utils/format'
import { appendAmapNavLine, buildAmapNavigationUrl } from '@/utils/amap/navigation'
import { pickBxData } from '@/utils/http/bx'
import { formatPlanProductListText } from '@/utils/pl-display'
import { buildSiteSummaryFromInventoryLinks } from '@/utils/db-site-summary'

export function usePlPlanArrangeActions() {
  const dictStore = useDictStore()

  const plan = ref<Partial<Plan> | null>(null)
  const products = ref<PlanProduct[]>([])
  const driverUrl = ref('')
  const licensePlate = ref('')
  const siteRecords = ref<TransportSiteLink[]>([])
  const inventoryRecords = ref<TransportInventoryLink[]>([])
  const qrcodeVisible = ref(false)
  const selectedInventoryId = ref('')
  const selectedInventoryUnit = ref('')
  const qrcodeDialogRef = ref<InstanceType<typeof DbPoundSlipQrcodeDialog> | null>(null)

  const showArrangeActions = computed(
    () =>
      Boolean(
        plan.value?.transportStatus === 'arranged' &&
          plan.value?.followStatus !== 'cancelled' &&
          (driverUrl.value || siteRecords.value.length || inventoryRecords.value.length)
      )
  )

  const hasSiteInventoryRecords = computed(() => siteRecords.value.length > 0)

  const hasSiteLinks = computed(() => siteRecords.value.some(item => Boolean(item.siteUrl?.trim())))

  /** 勾选「生成地磅单」后才会关联 db_purchase_plan，磅单二维码仅针对这类记录 */
  const dibangInventoryRecords = computed(() =>
    inventoryRecords.value.filter(item => Boolean(item.dbPurchasePlanId?.trim()))
  )

  const hasDibangInventoryRecords = computed(() => dibangInventoryRecords.value.length > 0)

  function getUnitLabel(unit: string) {
    return dictStore.getLabel('crm_product_unit', unit) || unit
  }

  function resetArrangeActions() {
    plan.value = null
    products.value = []
    driverUrl.value = ''
    licensePlate.value = ''
    siteRecords.value = []
    inventoryRecords.value = []
    qrcodeVisible.value = false
    selectedInventoryId.value = ''
    selectedInventoryUnit.value = ''
  }

  function applyArrangeResult(
    result: TransportArrangeResult,
    contextPlan?: Partial<Plan>,
    contextProducts?: PlanProduct[]
  ) {
    if (contextPlan) plan.value = contextPlan
    if (contextProducts) products.value = contextProducts
    driverUrl.value = result.driverUrl || ''
    licensePlate.value = result.licensePlate || ''
    siteRecords.value = result.siteRecords || []
    inventoryRecords.value = result.inventoryRecords || []
  }

  async function loadArrangeActions(planId: string) {
    resetArrangeActions()
    const planRes = await planApi.get(planId)
    const data = pickBxData<Plan>(planRes)
    if (!data) return
    plan.value = data
    products.value = Array.isArray(data.products) ? data.products : []

    if (data.transportStatus !== 'arranged' || data.followStatus === 'cancelled') {
      return
    }

    const infoRes = await planApi.getArrangeInfo(planId)
    const info = pickBxData<{
      driverUrl?: string
      driver_url?: string
      licensePlate?: string
      license_plate?: string
      siteRecords?: TransportSiteLink[]
      site_records?: TransportSiteLink[]
      inventoryRecords?: TransportInventoryLink[]
      inventory_records?: TransportInventoryLink[]
    }>(infoRes)
    driverUrl.value = info?.driverUrl || info?.driver_url || ''
    licensePlate.value = info?.licensePlate || info?.license_plate || data.licensePlate || ''
    siteRecords.value = info?.siteRecords || info?.site_records || []
    inventoryRecords.value = info?.inventoryRecords || info?.inventory_records || []
  }

  function buildPlanSummaryText(options?: {
    startPoint?: string
    endPoint?: string
    pickupAddress?: string
    pickupLng?: number | null
    pickupLat?: number | null
    destinationAddress?: string
    destinationLng?: number | null
    destinationLat?: number | null
    pickupContact?: string
    pickupNotes?: string
    deliveryContact?: string
    destinationNotes?: string
    licensePlate?: string
    driverUrl?: string
  }) {
    const plate =
      options?.licensePlate || licensePlate.value || plan.value?.licensePlate || '—'
    const lines = [`【${plate} - 运输安排】`, `计划号：${plan.value?.planNo || '—'}`]
    lines.push(`车牌：${plate}`)
    lines.push(
      `时间：${formatDate(plan.value?.pickupTime) || plan.value?.planDate || '—'}`
    )
    const productText = products.value
      .map(p => formatPlanProductListText(p, getUnitLabel, { usePlannedQuantity: true }))
      .join('；')
    lines.push(`产品：${productText || '—'}`)

    const pickupAddress =
      options?.pickupAddress || plan.value?.pickupAddress || options?.startPoint || '—'
    const destinationAddress =
      options?.destinationAddress ||
      plan.value?.destinationAddress ||
      plan.value?.destinationName ||
      options?.endPoint ||
      '—'
    lines.push(`取货地址：${pickupAddress}`)
    lines.push(`送货地址：${destinationAddress}`)

    const pickupLng = options?.pickupLng ?? plan.value?.pickupLng
    const pickupLat = options?.pickupLat ?? plan.value?.pickupLat
    const destinationLng = options?.destinationLng ?? plan.value?.destinationLng
    const destinationLat = options?.destinationLat ?? plan.value?.destinationLat
    appendAmapNavLine(
      lines,
      '取货导航',
      buildAmapNavigationUrl(pickupLng, pickupLat, pickupAddress !== '—' ? pickupAddress : '取货点')
    )
    appendAmapNavLine(
      lines,
      '送货导航',
      buildAmapNavigationUrl(
        destinationLng,
        destinationLat,
        destinationAddress !== '—' ? destinationAddress : '送货点'
      )
    )

    lines.push(
      `取货联系方式：${options?.pickupContact || plan.value?.pickupContact || '—'}`
    )
    lines.push(`取货注意事项：${options?.pickupNotes || plan.value?.pickupNotes || '—'}`)
    lines.push(
      `送货联系方式：${options?.deliveryContact || plan.value?.deliveryContact || '—'}`
    )
    lines.push(`送货注意事项：${options?.destinationNotes || plan.value?.destinationNotes || '—'}`)
    lines.push(`司机链接：${options?.driverUrl || driverUrl.value || '—'}`)
    return lines.join('\n')
  }

  async function copyDriverUrl(url?: string) {
    const target = url || driverUrl.value
    if (!target) return
    await navigator.clipboard.writeText(target)
    ElMessage.success('已复制司机链接')
  }

  function resolveSiteRecordProductText(record: TransportSiteLink) {
    const product = products.value.find(item => item.id === record.planProductId)
    if (product) {
      return formatPlanProductListText(product, getUnitLabel, { usePlannedQuantity: true })
    }
    return record.productName || '—'
  }

  function buildSiteSummaryText(options?: { licensePlate?: string }) {
    return buildSiteSummaryFromInventoryLinks({
      planNo: plan.value?.planNo,
      licensePlate: options?.licensePlate || licensePlate.value || plan.value?.licensePlate,
      pickupTime: plan.value?.pickupTime,
      planDate: plan.value?.planDate,
      records: siteRecords.value.map(record => ({
        ...record,
        productText: resolveSiteRecordProductText(record)
      }))
    })
  }

  async function copySiteSummary(options?: { licensePlate?: string }) {
    if (!hasSiteLinks.value) {
      ElMessage.warning('暂无现场链接')
      return
    }
    await navigator.clipboard.writeText(buildSiteSummaryText(options))
    ElMessage.success('已复制给现场')
  }

  async function copyPlanSummary(options?: {
    startPoint?: string
    endPoint?: string
    pickupAddress?: string
    pickupLng?: number | null
    pickupLat?: number | null
    destinationAddress?: string
    destinationLng?: number | null
    destinationLat?: number | null
    pickupContact?: string
    pickupNotes?: string
    deliveryContact?: string
    destinationNotes?: string
    licensePlate?: string
    driverUrl?: string
  }) {
    await navigator.clipboard.writeText(buildPlanSummaryText(options))
    ElMessage.success('已复制给司机')
  }

  function resolveInventoryUnitLabel(record: TransportInventoryLink) {
    const product = products.value.find(item => item.id === record.planProductId)
    const unitRaw = product?.unit || ''
    return unitRaw ? getUnitLabel(unitRaw) : '吨'
  }

  async function copyPoundSlipQrcode() {
    const records = dibangInventoryRecords.value
    if (!records.length) {
      ElMessage.warning('未勾选生成地磅单，暂无磅单二维码')
      return
    }
    if (records.length === 1) {
      selectedInventoryId.value = records[0].dbInventoryId
      selectedInventoryUnit.value = resolveInventoryUnitLabel(records[0])
      qrcodeVisible.value = true
      await nextTick()
      await qrcodeDialogRef.value?.copyQrcodeImage()
      return
    }

    try {
      const { value } = await ElMessageBox.prompt('请选择要复制二维码的产品行', '复制磅单二维码', {
        inputPlaceholder: records.map((item, idx) => `${idx + 1}. ${item.productName}`).join('\n'),
        confirmButtonText: '确定',
        inputValidator: val => {
          const index = Number(val) - 1
          if (!Number.isInteger(index) || index < 0 || index >= records.length) {
            return '请输入有效序号'
          }
          return true
        }
      })
      const index = Number(value) - 1
      const record = records[index]
      selectedInventoryId.value = record.dbInventoryId
      selectedInventoryUnit.value = resolveInventoryUnitLabel(record)
      qrcodeVisible.value = true
      await nextTick()
      await qrcodeDialogRef.value?.copyQrcodeImage()
    } catch {
      // 用户取消
    }
  }

  return {
    plan,
    products,
    driverUrl,
    licensePlate,
    siteRecords,
    inventoryRecords,
    qrcodeVisible,
    selectedInventoryId,
    selectedInventoryUnit,
    qrcodeDialogRef,
    showArrangeActions,
    hasSiteInventoryRecords,
    hasSiteLinks,
    dibangInventoryRecords,
    hasDibangInventoryRecords,
    resetArrangeActions,
    applyArrangeResult,
    loadArrangeActions,
    buildPlanSummaryText,
    buildSiteSummaryText,
    copyDriverUrl,
    copySiteSummary,
    copyPlanSummary,
    copyPoundSlipQrcode
  }
}