import type { LastMileOrderSummaryDto } from './api/lastMileOrders'
import type { LastMileOrderListItem } from './types'

const orderTypeLabels: Record<string, string> = {
  ONE_CLICK_DROPSHIP: '一件代发',
  FIRST_LEG: '头程订单',
  RELABEL_APPLICATION: '换标下单',
  WAREHOUSE_TRANSFER: '仓储转运',
  RETURN_RELABEL: '退货换标',
  LOCAL_LOOSEBOARD: '本土散板',
  CARGO_DISCARD: '货物废弃订单',
  REJECTED: '拒收订单',
  EXPRESS: '快递订单',
}

const statusLabels: Record<string, string> = {
  PENDING_REVIEW: '待审核',
  PENDING_RECEIPT: '待签收入库',
  PARTIALLY_RECEIVED: '部分入库',
  INBOUND_COMPLETED: '全部入库',
  WAIT_PDA_RECEIVING: '入库测量中',
  INBOUND_MEASURING: '入库测量中',
  WAIT_CUSTOMER_CONFIRMATION: '待客户确认实测',
  APPROVED: '审核通过',
  PENDING_ASSIGNMENT: '待分配',
  WAIT_RELABEL: '待换标',
  WAIT_FBA_DESTINATION: '待确认目的仓',
  READY_FOR_DISPATCH: '待创建出库单',
  WAIT_OUTBOUND: '待出库',
  ALLOCATED: '已分配库存',
  OUTBOUNDED: '已出库',
  RECEIVED: '已收货',
  IN_TRANSIT: '运输中',
  DESTINATION_ASSIGNED: '已分配目的仓',
  INBOUND_PLANNED: '已生成入库计划',
  PENDING_PROCESSING: '待处理',
  PROCESSING: '处理中',
  COMPLETED: '已完成',
  REJECTED: '已驳回',
  CANCELLED: '已取消',
}

const inboundPlanStatusLabels: Record<string, string> = {
  PENDING_ASSIGNMENT: '待入库',
  ASSIGNED: '待入库',
  PDA_PENDING: '待入库',
  SIGNED: '已签收',
  PICKING: '拣货中',
  PARTIAL_INBOUND: '部分入库',
  COMPLETED: '全部入库',
}

const inventoryBusinessTypeLabels: Record<string, string> = {
  IN_TRANSIT: '在途入账',
  STOCK_IN: '入库',
  STOCK_IN_TRANSIT_RELEASE: '在途库存转入',
  HOLD: '库存暂扣',
  RELEASE: '解除暂扣',
  ALLOCATE: '库存分配',
  UNALLOCATE: '取消分配',
  PICK: '拣货',
  SHIP: '出库',
  ADJUST: '库存调整',
  STOCKTAKE_ADJUST: '盘点调整',
  PALLET_ASSEMBLE: '组托',
  PALLET_DISASSEMBLE: '拆托',
  PALLET_SWAP: '换托',
  PALLET_UNBIND: '解托',
}

function text(value: unknown) {
  const normalized = String(value ?? '').trim()
  return normalized || '—'
}

function metric(value: number | null | undefined): number | '—' {
  return value != null && Number.isFinite(value) ? Number(value) : '—'
}

function yesNo(value: boolean | null | undefined) {
  return value == null ? '—' : value ? '是' : '否'
}

export function lastMileStatusLabel(value: unknown) {
  const code = String(value ?? '').trim()
  return statusLabels[code] || text(code)
}

export function inboundPlanStatusLabel(value: unknown) {
  const code = String(value ?? '').trim()
  return inboundPlanStatusLabels[code] || text(code)
}

export function packageDifferenceText(value: number | '—' | null | undefined) {
  if (value == null || value === '—' || !Number.isFinite(value)) return '—'
  return value > 0 ? `+${value}` : String(value)
}

export function relabelApplicationStatusLabel(value: unknown) {
  const code = String(value ?? '').trim()
  return ({ PENDING_REVIEW: '待审核', PENDING_PROCESSING: '待处理', PROCESSING: '处理中', CUSTOMER_CONFIRM_PENDING: '待客户确认', READY_FOR_OUTBOUND: '待出库', COMPLETED: '已完成', REJECTED: '已驳回', CANCELLED: '已取消' } as Record<string, string>)[code] || text(code)
}

// 兼容原有单张换标单的汇总展示；子单使用完整业务状态。
export function relabelBusinessStatusLabel(value: unknown) {
  const code = String(value ?? '').trim()
  if (code === 'PROCESSING') return '处理中'
  if (!code || code === 'NOT_REQUIRED') return '—'
  return ['CUSTOMER_CONFIRM_PENDING', 'READY_FOR_OUTBOUND', 'COMPLETED'].includes(code) ? '换标完成' : '待处理'
}

export function lastMileOrderTypeLabel(value: unknown) {
  const code = String(value ?? '').trim()
  return orderTypeLabels[code] || text(code)
}

export function inventoryBusinessTypeLabel(value: unknown) {
  const code = String(value ?? '').trim()
  return inventoryBusinessTypeLabels[code] || text(code)
}

export function lastMileOrderReference(value: unknown, emptyLabel = '—') {
  const serverValue = value == null ? '' : String(value)
  return serverValue || emptyLabel
}

export function formatOverseasDateTime(value: unknown) {
  const raw = String(value ?? '').trim()
  if (!raw) return '—'
  const dateOnly = /^(\d{4})-(\d{2})-(\d{2})$/.exec(raw)
  const date = value instanceof Date
    ? new Date(value.getTime())
    : typeof value === 'number'
      ? new Date(value)
      : dateOnly
        ? new Date(Number(dateOnly[1]), Number(dateOnly[2]) - 1, Number(dateOnly[3]))
        : new Date(raw)
  if (Number.isNaN(date.getTime())) return raw
  const pad = (part: number) => String(part).padStart(2, '0')
  return `${date.getFullYear()}-${pad(date.getMonth() + 1)}-${pad(date.getDate())} ${pad(date.getHours())}:${pad(date.getMinutes())}:${pad(date.getSeconds())}`
}

export function palletMergeLabel(value: unknown) {
  const code = String(value ?? '').trim()
  return ({ REQUIRED: '待合托', MERGED: '已合托' } as Record<string, string>)[code] || (code ? text(code) : '未标记')
}

export function toLastMileOrderListItem(dto: LastMileOrderSummaryDto): LastMileOrderListItem {
  const warehouseTransfer = dto.orderType === 'WAREHOUSE_TRANSFER'
  return {
    id: String(dto.id),
    customerId: String(dto.customerId),
    sourceContainerBookingId: String(dto.sourceContainerBookingId ?? '').trim(),
    orderNo: lastMileOrderReference(dto.orderNo),
    sourceOrderNo: lastMileOrderReference(dto.sourceOrderNo, ''),
    businessType: dto.businessSource?.businessType || '',
    businessSource: text(dto.businessSource?.label),
    businessOrderNo: text(dto.businessSource?.businessOrderNo),
    externalBookingNo: text(dto.businessSource?.externalBookingNo),
    orderTypeCode: String(dto.orderType ?? '').trim(),
    currentStatusCode: String(dto.currentStatus ?? '').trim(),
    warning: dto.abnormal ? '异常' : '—',
    orderType: text(dto.orderTypeName || lastMileOrderTypeLabel(dto.orderType)),
    rejectedAt: '—',
    inboundCode: text(dto.inboundCode),
    lxCode: text(dto.lxCode),
    owner: text(dto.customerName),
    overseasWarehouseId: String(dto.overseasWarehouseId ?? '').trim(),
    overseasWarehouseCode: String(dto.overseasWarehouseCode ?? '').trim(),
    warehouse: text(dto.overseasWarehouseName),
    transferWarehouse: text(dto.transferWarehouseName),
    fbaWarehouse: text(dto.fbaWarehouseCode),
    containerNo: text(dto.containerNo),
    containerNode: text(dto.containerNode),
    abnormal: yesNo(dto.abnormal),
    held: yesNo(dto.detained),
    detained: Boolean(dto.detained),
    holdChargeable: Boolean(dto.holdChargeable),
    holdReason: String(dto.holdReason ?? '').trim(),
    manualNodeOverride: Boolean(dto.manualOverrideEnabled),
    version: Number(dto.version ?? 0),
    pallets: metric(dto.palletCount),
    cartons: metric(dto.packageCount),
    cartonDifference: warehouseTransfer ? metric(dto.packageDifference) : '—',
    volume: metric(dto.volumeCbm),
    quantity: metric(dto.productQuantity),
    volumeWeight: metric(dto.volumeWeightKg),
    portEta: formatOverseasDateTime(dto.estimatedArrivalAt),
    portAta: formatOverseasDateTime(dto.actualArrivalAt),
    estimatedWarehouseAt: String(dto.estimatedWarehouseAt ?? '').trim(),
    warehouseEta: formatOverseasDateTime(dto.estimatedWarehouseAt),
    inboundOrderNo: text(dto.inboundOrderNo),
    dispatchStatus: dto.dispatchStatus === 'SCHEDULED' ? '已排车' : '未排车',
    outboundOrderNo: text(dto.outboundOrderNo),
    dispatchOrderNo: text(dto.deliveryOrderNo),
    relabelOrderNo: text(dto.relabelOrderNo),
    relabelApplications: (dto.relabelApplications || []).map(application => ({ ...application, statusLabel: relabelApplicationStatusLabel(application.status) })),
    relabelStatusCode: String(dto.relabelStatus ?? '').trim(),
    relabelStatus: relabelBusinessStatusLabel(dto.relabelStatus),
    consolidated: palletMergeLabel(dto.palletMergeFlag),
    palletMergeFlag: String(dto.palletMergeFlag ?? '').trim(),
    palletMergeRelation: Array.isArray(dto.palletMergeInboundNos) && dto.palletMergeInboundNos.length
      ? dto.palletMergeInboundNos.map((value) => text(value)).join('、')
      : dto.palletMergeBatchId ? `批次 ${text(dto.palletMergeBatchId)}` : '—',
    status: lastMileStatusLabel(dto.currentStatus),
    internalRemark: text(dto.privateRemark),
    customerRemark: text(dto.customerRemark),
    warehouseRemark: text(dto.warehouseRemark),
    createdAt: formatOverseasDateTime(dto.createdAt),
  }
}