import type { QcWorkOrder } from '@/api/qc-work-order'
import { getQcWorkOrderTab, resolveTabKeyFromWorkOrder } from '@/utils/qc-work-order-tabs'

export type QcWorkOrderSampleGroupModel = {
  groupKey: string
  /** 入库：样本编码；出库：申请单号等分组主标题 */
  sampleCode: string
  groupTitle?: string
  workOrders: QcWorkOrder[]
}

function triggerSortWeight(row: QcWorkOrder) {
  const ts = row.triggerSource || 'reception'
  if (ts === 'production') return 1
  return 0
}

function sortWorkOrdersInGroup(rows: QcWorkOrder[]) {
  return [...rows].sort((a, b) => {
    const byTrigger = triggerSortWeight(a) - triggerSortWeight(b)
    if (byTrigger !== 0) return byTrigger
    return String(a.createTime || '').localeCompare(String(b.createTime || ''))
  })
}

function sortWorkOrdersInInboundGroup(rows: QcWorkOrder[]) {
  return [...rows].sort((a, b) =>
    String(b.createTime || '').localeCompare(String(a.createTime || ''))
  )
}

/** 入库 Tab：按样本编码分组（前端分组，分页仍按工单条数） */
export function groupInboundQcWorkOrders(rows: QcWorkOrder[]): QcWorkOrderSampleGroupModel[] {
  const map = new Map<string, QcWorkOrder[]>()
  for (const row of rows) {
    const key = (row.sampleCode || '').trim() || row.id
    const list = map.get(key)
    if (list) list.push(row)
    else map.set(key, [row])
  }
  return Array.from(map.entries()).map(([groupKey, workOrders]) => {
    const sorted = sortWorkOrdersInInboundGroup(workOrders)
    return {
      groupKey,
      sampleCode: sorted[0]?.sampleCode || '',
      workOrders: sorted
    }
  })
}

/** 出库 Tab：按输注计划分组 */
export function groupOutboundQcWorkOrders(rows: QcWorkOrder[]): QcWorkOrderSampleGroupModel[] {
  const map = new Map<string, QcWorkOrder[]>()
  for (const row of rows) {
    const key = (row.infusionScheduleId || '').trim() || row.id
    const list = map.get(key)
    if (list) list.push(row)
    else map.set(key, [row])
  }
  return Array.from(map.entries()).map(([groupKey, workOrders]) => {
    const sorted = sortWorkOrdersInGroup(workOrders)
    const head = sorted[0]
    const groupTitle = (head?.applicationNo || head?.workOrderNo || groupKey).trim()
    return {
      groupKey,
      sampleCode: groupTitle,
      groupTitle,
      workOrders: sorted
    }
  })
}

export function triggerSourceTabLabel(row: QcWorkOrder) {
  if (row.triggerSourceLabel) return row.triggerSourceLabel
  const ts = row.triggerSource || 'reception'
  if (ts === 'production') return '生产过程'
  if (ts === 'schedule') return '计划质检'
  return '样本接收'
}

export function isGateTriggerSource(source?: string | null) {
  const ts = (source || 'reception').trim()
  return ts === 'reception' || ts === 'schedule'
}

/** 临时质检：是否由生产工单派发 */
export function isTemporaryQcFromProduction(row: QcWorkOrder) {
  return (row.triggerSource || '') === 'production' || !!(row.productionWorkOrderId || '').trim()
}

export function temporaryQcSourceLabel(row: QcWorkOrder) {
  return isTemporaryQcFromProduction(row) ? '生产派发' : '手动创建'
}

export function temporaryQcSourceTagType(row: QcWorkOrder): 'warning' | 'info' {
  return isTemporaryQcFromProduction(row) ? 'warning' : 'info'
}

export function matchesTemporaryQcSourceFilter(row: QcWorkOrder, filterValue?: string) {
  if (!filterValue) return true
  if (filterValue === 'production') return isTemporaryQcFromProduction(row)
  if (filterValue === 'manual') return !isTemporaryQcFromProduction(row)
  return (row.triggerSource || '') === filterValue
}

export function resolveInboundProtocolGroupKey(row: QcWorkOrder): string {
  const id = (row.collectionProtocolId || '').trim()
  if (id) return id
  const no = (row.protocolNo || '').trim()
  if (no) return `protocol-no:${no}`
  return row.id
}

export function resolveInboundSampleGroupKey(row: QcWorkOrder): string {
  return (row.sampleCode || '').trim() || row.id
}

/** 样本组内用于组头/Tab 状态的 gate 工单（接收优先，否则首条） */
export function resolveGateWorkOrderForSampleGroup(
  workOrders: QcWorkOrder[]
): QcWorkOrder | undefined {
  if (!workOrders.length) return undefined
  return workOrders.find((w) => isGateTriggerSource(w.triggerSource)) || workOrders[0]
}

export type QcWorkOrderProtocolGroupModel = {
  groupKey: string
  protocolId: string
  protocolNo: string
  receptionSource: 'cell_storage' | 'research_donation'
  sampleGroups: QcWorkOrderSampleGroupModel[]
  workOrders: QcWorkOrder[]
}

function protocolGroupSortTime(group: QcWorkOrderProtocolGroupModel): string {
  let max = ''
  for (const wo of group.workOrders) {
    const t = String(wo.createTime || '')
    if (t > max) max = t
  }
  return max
}

/** 入库 Tab：按协议单分组，组内再按样本分组 */
export function groupInboundQcWorkOrdersByProtocol(
  rows: QcWorkOrder[]
): QcWorkOrderProtocolGroupModel[] {
  const map = new Map<string, QcWorkOrder[]>()
  for (const row of rows) {
    const key = resolveInboundProtocolGroupKey(row)
    const list = map.get(key)
    if (list) list.push(row)
    else map.set(key, [row])
  }
  const groups = Array.from(map.entries()).map(([groupKey, workOrders]) => {
    const sampleGroups = groupInboundQcWorkOrders(workOrders)
    const head = workOrders[0]
    const source =
      (head?.receptionSource || 'cell_storage') === 'research_donation'
        ? 'research_donation'
        : 'cell_storage'
    return {
      groupKey,
      protocolId: (head?.collectionProtocolId || '').trim(),
      protocolNo: (head?.protocolNo || '').trim(),
      receptionSource: source as 'cell_storage' | 'research_donation',
      sampleGroups,
      workOrders
    }
  })
  return groups.sort((a, b) => protocolGroupSortTime(b).localeCompare(protocolGroupSortTime(a)))
}

/** 协议组进度：已配置样本数 / 样本总数（按 gate 工单 workOrderStatus !== dpz） */
export function countConfiguredSamplesInProtocolGroup(group: QcWorkOrderProtocolGroupModel): {
  configured: number
  total: number
} {
  const total = group.sampleGroups.length
  let configured = 0
  for (const sg of group.sampleGroups) {
    const gate = resolveGateWorkOrderForSampleGroup(sg.workOrders)
    if (gate && gate.workOrderStatus !== 'dpz') configured += 1
  }
  return { configured, total }
}

export type QcWorkOrderAllTabListItem =
  | { kind: 'sample-group'; group: QcWorkOrderSampleGroupModel }
  | { kind: 'standalone'; row: QcWorkOrder }

type AllTabPendingGroup = {
  layout: 'inbound-grouped' | 'outbound-grouped'
  workOrders: QcWorkOrder[]
  firstIndex: number
}

/** 「所有」Tab：按行类型选用分组/单列布局，同页内合并同样本/同输注计划 */
export function buildAllTabListItems(rows: QcWorkOrder[]): QcWorkOrderAllTabListItem[] {
  const pendingInbound = new Map<string, AllTabPendingGroup>()
  const pendingOutbound = new Map<string, AllTabPendingGroup>()
  const slots: { firstIndex: number; item: QcWorkOrderAllTabListItem }[] = []

  rows.forEach((row, index) => {
    const rowTabKey = resolveTabKeyFromWorkOrder(row)
    const layout = getQcWorkOrderTab(rowTabKey)?.listLayout
    if (layout === 'inbound-grouped') {
      const key = (row.sampleCode || '').trim() || row.id
      const existing = pendingInbound.get(key)
      if (existing) {
        existing.workOrders.push(row)
      } else {
        pendingInbound.set(key, { layout: 'inbound-grouped', workOrders: [row], firstIndex: index })
      }
      return
    }
    if (layout === 'outbound-grouped') {
      const key = (row.infusionScheduleId || '').trim() || row.id
      const existing = pendingOutbound.get(key)
      if (existing) {
        existing.workOrders.push(row)
      } else {
        pendingOutbound.set(key, {
          layout: 'outbound-grouped',
          workOrders: [row],
          firstIndex: index
        })
      }
      return
    }
    slots.push({ firstIndex: index, item: { kind: 'standalone', row } })
  })

  for (const pending of pendingInbound.values()) {
    const [group] = groupInboundQcWorkOrders(pending.workOrders)
    if (group) {
      slots.push({ firstIndex: pending.firstIndex, item: { kind: 'sample-group', group } })
    }
  }
  for (const pending of pendingOutbound.values()) {
    const [group] = groupOutboundQcWorkOrders(pending.workOrders)
    if (group) {
      slots.push({ firstIndex: pending.firstIndex, item: { kind: 'sample-group', group } })
    }
  }

  return slots.sort((a, b) => a.firstIndex - b.firstIndex).map((slot) => slot.item)
}