import { useState } from 'react'
import { toast } from 'sonner'
import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
import { useConfirm } from '../hooks/useConfirm'
import { Users, FileText, AlertTriangle, Calendar, TrendingUp, Scale, X, Plus, Check, UserX, UserPlus, DollarSign, Building2, RotateCcw, History } from 'lucide-react'
import api from '../lib/api'
import { useDebouncedValue } from '../hooks/useDebouncedValue'
import Card from '../components/ui/Card'
import Button from '../components/ui/Button'
import { Input, Label, Select } from '../components/ui/Input'
import Modal from '../components/ui/Modal'
import Pagination from '../components/ui/Pagination'
import { fmt, terminateReasonMap, DetailTab, TAB_GROUPS, TAB_COUNT_KEYS } from './roster/shared'
import EmployeeProfile from './roster/EmployeeProfile'
import { AddEmployeeModal, ResignModal, RehireModal, SalaryChangeModal, DeptChangeModal } from './roster/modals'

export default function Roster() {
  const queryClient = useQueryClient()
  const confirm = useConfirm()
  const [selectedId, setSelectedId] = useState<string | null>(null)
  const [search, setSearch] = useState('')
  const debouncedSearch = useDebouncedValue(search, 300)
  const [showAddModal, setShowAddModal] = useState(false)
  const [showResignModal, setShowResignModal] = useState(false)
  const [resignEmployee, setResignEmployee] = useState<any>(null)
  const [showRehireModal, setShowRehireModal] = useState(false)
  const [rehireEmployee, setRehireEmployee] = useState<any>(null)
  const [showSalaryModal, setShowSalaryModal] = useState(false)
  const [salaryEmployee, setSalaryEmployee] = useState<any>(null)
  const [showDeptModal, setShowDeptModal] = useState(false)
  const [deptEmployee, setDeptEmployee] = useState<any>(null)
  const [page, setPage] = useState(1)
  const [pageSize, setPageSize] = useState(20)
  const [selectedIds, setSelectedIds] = useState<Set<string>>(new Set())
  const [showBatchRenewModal, setShowBatchRenewModal] = useState(false)
  const [batchRenewYears, setBatchRenewYears] = useState(3)
  const [previewData, setPreviewData] = useState<any>(null)
  const [filterStatus, setFilterStatus] = useState('')
  const [filterContractStatus, setFilterContractStatus] = useState('')
  const [showBatchTerminateModal, setShowBatchTerminateModal] = useState(false)
  const [batchTerminateDate, setBatchTerminateDate] = useState(() => new Date().toISOString().slice(0, 10))
  const [batchTerminateReason, setBatchTerminateReason] = useState('NEGOTIATED')
  const [terminatePreviewData, setTerminatePreviewData] = useState<any>(null)

  const { data: rosterData, isLoading } = useQuery<any>({
    queryKey: ['roster', page, pageSize, debouncedSearch, filterStatus, filterContractStatus],
    queryFn: async () => {
      const params: any = { page, pageSize }
      if (debouncedSearch) params.search = debouncedSearch
      if (filterStatus) params.status = filterStatus
      if (filterContractStatus) params.contractStatus = filterContractStatus
      const res = await api.get('/roster', { params }) as any
      return res
    },
  })

  const employees = rosterData?.data || []
  const pagination = rosterData?.pagination || { page, pageSize, total: 0, totalPages: 0 }

  const addMutation = useMutation({
    mutationFn: (data: any) => api.post('/employees', data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['roster'] })
      queryClient.invalidateQueries({ queryKey: ['dashboard'] })
      queryClient.invalidateQueries({ queryKey: ['roster-profile'] })
      setShowAddModal(false)
    },
  })

  const resignMutation = useMutation({
    mutationFn: (data: any) => api.post('/termination/draft', {
      employeeId: data.employeeId,
      type: 'RESIGNATION',
      reason: 'RESIGNATION',
      terminationDate: data.terminationDate,
      resignationReason: data.resignationReason,
      remark: data.remark,
    }),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['roster'] })
      queryClient.invalidateQueries({ queryKey: ['dashboard'] })
      queryClient.invalidateQueries({ queryKey: ['termination-drafts'] })
      queryClient.invalidateQueries({ queryKey: ['roster-profile'] })
      toast.success('已创建离职草稿，请前往「解聘补偿」页面完成流程')
      setShowResignModal(false)
      setResignEmployee(null)
    },
  })

  const revokeMutation = useMutation({
    mutationFn: (recordId: string) => api.delete(`/termination/${recordId}/revoke`),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['roster'] })
      queryClient.invalidateQueries({ queryKey: ['dashboard'] })
      queryClient.invalidateQueries({ queryKey: ['roster-profile'] })
    },
  })

  const rehireMutation = useMutation({
    mutationFn: (data: any) => api.post(`/employees/${rehireEmployee?.id}/rehire`, data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['roster'] })
      queryClient.invalidateQueries({ queryKey: ['dashboard'] })
      queryClient.invalidateQueries({ queryKey: ['roster-profile'] })
      setShowRehireModal(false)
      setRehireEmployee(null)
    },
  })

  const salaryChangeMutation = useMutation({
    mutationFn: (data: any) => api.post(`/roster/${salaryEmployee?.id}/salary-change`, data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['roster'] })
      queryClient.invalidateQueries({ queryKey: ['dashboard'] })
      queryClient.invalidateQueries({ queryKey: ['roster-profile'] })
      setShowSalaryModal(false)
      setSalaryEmployee(null)
    },
  })

  const deptChangeMutation = useMutation({
    mutationFn: (data: any) => api.post(`/roster/${deptEmployee?.id}/department-change`, data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['roster'] })
      queryClient.invalidateQueries({ queryKey: ['dashboard'] })
      queryClient.invalidateQueries({ queryKey: ['roster-profile'] })
      setShowDeptModal(false)
      setDeptEmployee(null)
    },
  })

  const batchRenewMutation = useMutation({
    mutationFn: (data: { contractIds: string[]; years: number }) => api.post('/employees/contracts/batch-renew', data),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['roster'] })
      queryClient.invalidateQueries({ queryKey: ['dashboard'] })
      queryClient.invalidateQueries({ queryKey: ['roster-profile'] })
      setShowBatchRenewModal(false)
      setSelectedIds(new Set())
      setPreviewData(null)
    },
  })

  const previewRenewMutation = useMutation({
    mutationFn: (contractIds: string[]) => api.post('/employees/contracts/preview-renew', { contractIds }),
    onSuccess: (data: any) => {
      setPreviewData(data.data)
    },
  })

  const previewTerminateMutation = useMutation({
    mutationFn: (items: Array<{ employeeId: string; reason: string; terminationDate: string }>) =>
      api.post('/termination/batch/preview', { items }),
    onSuccess: (data: any) => {
      setTerminatePreviewData(data.data)
    },
  })

  const batchTerminateMutation = useMutation({
    mutationFn: async (items: Array<{ employeeId: string; reason: string; terminationDate: string }>) => {
      const results = await Promise.all(
        items.map(item => api.post('/termination/draft', {
          employeeId: item.employeeId,
          type: 'TERMINATION',
          reason: item.reason,
          terminationDate: item.terminationDate,
        }).catch(err => ({ error: err, employeeId: item.employeeId })))
      )
      return results
    },
    onSuccess: (results: any) => {
      const success = results.filter((r: any) => !r?.error).length
      const failed = results.filter((r: any) => r?.error).length
      queryClient.invalidateQueries({ queryKey: ['roster'] })
      queryClient.invalidateQueries({ queryKey: ['dashboard'] })
      queryClient.invalidateQueries({ queryKey: ['termination-drafts'] })
      queryClient.invalidateQueries({ queryKey: ['roster-profile'] })
      if (success > 0) toast.success(`已创建 ${success} 个解聘草稿，请前往「解聘补偿」页面完成流程`)
      if (failed > 0) toast.error(`${failed} 个员工创建草稿失败`)
      setShowBatchTerminateModal(false)
      setTerminatePreviewData(null)
      setSelectedIds(new Set())
    },
  })

  const toggleSelect = (id: string) => {
    setSelectedIds((prev) => {
      const next = new Set(prev)
      if (next.has(id)) next.delete(id)
      else next.add(id)
      return next
    })
  }

  const toggleSelectAll = () => {
    if (selectedIds.size === employees.length) {
      setSelectedIds(new Set())
    } else {
      setSelectedIds(new Set(employees.map((e: any) => e.id)))
    }
  }

  const clearFilters = () => {
    setSearch('')
    setFilterStatus('')
    setFilterContractStatus('')
    setPage(1)
  }

  const hasActiveFilters = search || filterStatus || filterContractStatus

  const filtered = employees?.filter((e: any) =>
    !search || e.name.includes(search) || e.department.includes(search)
  ) || []

  if (selectedId) {
    return <EmployeeProfile employeeId={selectedId} onBack={() => setSelectedId(null)} />
  }

  return (
    <div className="space-y-5">
      <div className="flex flex-col gap-4 xl:flex-row xl:items-end xl:justify-between">
        <div>
          <div className="flex items-center gap-2">
            <Users className="h-5 w-5 text-primary" />
            <h1 className="text-base font-semibold">员工花名册</h1>
          </div>
          <p className="mt-1 text-sm text-gray-500">统一查看员工状态、合同风险及人事档案</p>
        </div>
        <div className="flex flex-wrap items-center justify-start gap-2 xl:justify-end">
          <Input
            placeholder="搜索姓名或部门"
            value={search}
            onChange={(e) => { setSearch(e.target.value); setPage(1) }}
            className="!w-full sm:!w-64 shrink-0"
          />
          <select
            value={filterStatus}
            onChange={(e) => { setFilterStatus(e.target.value); setPage(1) }}
            className="h-9 rounded-md border border-gray-200 bg-white px-3 text-sm text-gray-700 shadow-sm outline-none transition focus:border-primary focus:ring-2 focus:ring-primary/10"
          >
            <option value="">全部状态</option>
            <option value="ACTIVE">在职</option>
            <option value="PRE_HIRE">预入职</option>
            <option value="RESIGNED">离职</option>
          </select>
          <select
            value={filterContractStatus}
            onChange={(e) => { setFilterContractStatus(e.target.value); setPage(1) }}
            className="h-9 rounded-md border border-gray-200 bg-white px-3 text-sm text-gray-700 shadow-sm outline-none transition focus:border-primary focus:ring-2 focus:ring-primary/10"
          >
            <option value="">全部合同</option>
            <option value="active">正常</option>
            <option value="expiring">即将到期</option>
            <option value="expired">已到期</option>
            <option value="unsigned">未签合同</option>
            <option value="unsigned_over_30">未签合同(超30天)</option>
            <option value="unsigned_over_year">未签合同(已满一年)</option>
          </select>
          {hasActiveFilters && (
            <button onClick={clearFilters} className="h-9 px-2 text-sm text-gray-400 transition hover:text-gray-700">清除筛选</button>
          )}
          <Button onClick={() => setShowAddModal(true)} className="h-9 shrink-0">
            <Plus className="mr-1.5 h-4 w-4" />添加员工
          </Button>
        </div>
      </div>

      {selectedIds.size > 0 && (
        <div className="flex flex-wrap items-center justify-between gap-3 rounded-lg border border-primary/20 bg-primary/5 px-4 py-3">
          <span className="text-sm font-medium text-gray-700">已选择 {selectedIds.size} 名员工</span>
          <div className="flex flex-wrap gap-2">
            <Button variant="secondary" onClick={() => setShowBatchRenewModal(true)} className="shrink-0">
              <Check className="mr-1 h-4 w-4" />批量续签
            </Button>
            <Button variant="danger" onClick={() => setShowBatchTerminateModal(true)} className="shrink-0">
              <UserX className="mr-1 h-4 w-4" />批量解聘
            </Button>
          </div>
        </div>
      )}

      {isLoading ? (
        <div className="rounded-lg border border-gray-200 bg-white py-16 text-center text-sm text-gray-400">加载中...</div>
      ) : filtered.length === 0 ? (
        <Card><div className="py-12 text-center text-sm text-gray-400">暂无符合条件的员工</div></Card>
      ) : (
        <Card className="overflow-hidden p-0">
          <div className="border-b border-gray-100 px-5">
            <Pagination
              page={pagination.page}
              pageSize={pagination.pageSize}
              total={pagination.total}
              onPageChange={(p) => setPage(p)}
              onPageSizeChange={(s) => { setPageSize(s); setPage(1) }}
            />
          </div>
          <div className="overflow-x-auto">
            <table className="w-full min-w-[1200px] text-sm">
              <thead className="bg-gray-50/90">
                <tr className="border-b border-gray-200 text-xs font-medium text-gray-500">
                  <th className="px-4 py-3 text-left w-8">
                    <input type="checkbox" checked={employees.length > 0 && selectedIds.size === employees.length} onChange={toggleSelectAll} />
                  </th>
                  <th className="px-4 py-3 text-left">姓名</th>
                  <th className="px-4 py-3 text-left">部门</th>
                  <th className="px-4 py-3 text-left">状态</th>
                  <th className="hidden px-4 py-3 text-left">入职日期</th>
                  <th className="hidden px-4 py-3 text-left">离职日期</th>
                  <th className="px-4 py-3 text-right">月薪</th>
                  <th className="px-4 py-3 text-left">合同类型</th>
                  <th className="px-4 py-3 text-left">合同状态</th>
                  <th className="hidden px-4 py-3 text-left">合同到期</th>
                  <th className="px-4 py-3 text-center">违纪</th>
                  <th className="px-4 py-3 text-center">考勤</th>
                  <th className="px-4 py-3 text-center">培训</th>
                  <th className="px-4 py-3 text-center">绩效</th>
                  <th className="px-4 py-3 text-center">工资条</th>
                  <th className="px-4 py-3 text-center">操作</th>
                </tr>
              </thead>
              <tbody>
                {employees.map((e: any) => (
                  <tr
                    key={e.id}
                    className="border-b border-gray-100 last:border-0 cursor-pointer transition-colors hover:bg-primary/[0.03]"
                    onClick={() => setSelectedId(e.id)}
                  >
                    <td className="px-4 py-3" onClick={(ev) => ev.stopPropagation()}>
                      <input type="checkbox" checked={selectedIds.has(e.id)} onChange={() => toggleSelect(e.id)} />
                    </td>
                    <td className="px-4 py-3 font-medium">{e.name}</td>
                    <td className="px-4 py-3 text-gray-500">{e.department}</td>
                    <td className="px-4 py-3">
                      <span className={`px-2 py-0.5 rounded text-xs ${
                        e.status === 'ACTIVE' ? 'bg-green-50 text-safe'
                        : e.status === 'PRE_HIRE' ? 'bg-blue-50 text-blue-600'
                        : 'bg-gray-100 text-gray-500'
                      }`}>
                        {e.status === 'ACTIVE' ? '在职' : e.status === 'PRE_HIRE' ? '预入职' : '离职'}
                      </span>
                    </td>
                    <td className="hidden px-4 py-3 text-gray-500">{e.hireDate?.toString().slice(0, 10)}</td>
                    <td className="hidden px-4 py-3 text-gray-500">
                      {e.hasTermination && e.latestTerminationDate && e.latestTerminationStatus !== 'CANCELLED' && e.latestTerminationStatus !== 'COMPLETED' ? (
                        <span className={e.status === 'RESIGNED' ? 'text-gray-500' : 'text-amber-600'}>
                          {e.latestTerminationDate.toString().slice(0, 10)}
                          {e.status === 'ACTIVE' && ' (预计)'}
                        </span>
                      ) : (
                        <span className="text-gray-300">—</span>
                      )}
                    </td>
                    <td className="px-4 py-3 text-right">¥{fmt(e.monthlySalary)}</td>
                    <td className="px-4 py-3">
                      {(() => {
                        const typeConfig: Record<string, { label: string; style: string }> = {
                          FIXED: { label: '劳动合同-固定期', style: 'bg-blue-50 text-blue-700 border border-blue-200' },
                          UNFIXED: { label: '劳动合同-无固定期', style: 'bg-purple-50 text-purple-700 border border-purple-200' },
                          LABOR: { label: '劳务协议', style: 'bg-amber-50 text-amber-700 border border-amber-200' },
                          INTERNSHIP: { label: '实习协议', style: 'bg-teal-50 text-teal-700 border border-teal-200' },
                          UNSIGNED: { label: '未签合同', style: 'bg-gray-100 text-gray-500 border border-gray-200' },
                        }
                        const ct = e.latestContract?.contractType
                        const cfg = typeConfig[ct] || typeConfig.UNSIGNED
                        return <span className={`px-2 py-0.5 rounded text-xs ${cfg.style}`}>{cfg.label}</span>
                      })()}
                    </td>
                    <td className="px-4 py-3">
                      {(() => {
                        const tagStyles: Record<string, string> = {
                          expired: 'bg-red-50 text-danger',
                          unsigned_over_year: 'bg-red-50 text-danger',
                          unsigned_over_30: 'bg-red-50 text-danger',
                          unsigned: 'bg-yellow-50 text-yellow-700',
                          expiring: 'bg-yellow-50 text-yellow-700',
                          active: 'bg-green-50 text-safe',
                          unfixed: 'bg-green-50 text-safe',
                        }
                        const statusTextMap: Record<string, string> = {
                          expired: '已过期',
                          unsigned_over_year: '未签署(超1年)',
                          unsigned_over_30: '未签署(超30天)',
                          unsigned: '未签署',
                          expiring: '即将到期',
                          active: '正常',
                          unfixed: '正常',
                        }
                        const style = tagStyles[e.contractStatus] || 'bg-gray-100 text-gray-500'
                        const text = statusTextMap[e.contractStatus] || '无合同'
                        return <span className={`px-2 py-0.5 rounded text-xs ${style}`}>{text}</span>
                      })()}
                    </td>
                    <td className="hidden px-4 py-3 text-gray-500">
                      {(() => {
                        const endDate = e.latestContract?.endDate
                        if (!endDate) {
                          // 无固定期限合同显示"无固定期限"，否则显示"—"
                          if (e.latestContract?.contractType === 'UNFIXED') return <span className="text-xs text-gray-400">无固定期限</span>
                          return <span className="text-gray-300">—</span>
                        }
                        const end = new Date(endDate)
                        const today = new Date()
                        today.setHours(0, 0, 0, 0)
                        end.setHours(0, 0, 0, 0)
                        const diffDays = Math.ceil((end.getTime() - today.getTime()) / (1000 * 60 * 60 * 24))
                        const dateStr = end.toISOString().slice(0, 10)
                        if (diffDays < 0) return <span className="text-danger text-xs">{dateStr} (已过期)</span>
                        if (diffDays <= 30) return <span className="text-danger font-medium text-xs">{dateStr} ({diffDays}天)</span>
                        if (diffDays <= 90) return <span className="text-amber-600 text-xs">{dateStr} ({diffDays}天)</span>
                        return <span className="text-xs">{dateStr}</span>
                      })()}
                    </td>
                    <td className="px-4 py-3 text-center">
                      {e.counts?.disciplinaryRecords ? (
                        <span className="text-danger font-medium">{e.counts.disciplinaryRecords}</span>
                      ) : <span className="text-gray-300">0</span>}
                    </td>
                    <td className="px-4 py-3 text-center text-gray-500">{e.counts?.attendanceRecords || 0}</td>
                    <td className="px-4 py-3 text-center text-gray-500">{e.counts?.trainingRecords || 0}</td>
                    <td className="px-4 py-3 text-center text-gray-500">{e.counts?.performanceRecords || 0}</td>
                    <td className="px-4 py-3 text-center text-gray-500">{e.counts?.payslips || 0}</td>
                    <td className="px-4 py-3 text-center">
                      {e.status === 'ACTIVE' && (!e.hasTermination || e.latestTerminationStatus === 'CANCELLED' || e.latestTerminationStatus === 'COMPLETED') && (
                        <div className="flex items-center justify-center gap-2">
                          <button
                            type="button"
                            title="调薪"
                            aria-label={`为${e.name}调薪`}
                            className="rounded-md p-1.5 text-gray-500 transition hover:bg-primary/10 hover:text-primary"
                            onClick={(ev) => {
                              ev.stopPropagation()
                              setSalaryEmployee(e)
                              setShowSalaryModal(true)
                            }}
                          >
                            <DollarSign className="h-4 w-4" />
                          </button>
                          <button
                            type="button"
                            title="调部门"
                            aria-label={`为${e.name}调整部门`}
                            className="rounded-md p-1.5 text-gray-500 transition hover:bg-primary/10 hover:text-primary"
                            onClick={(ev) => {
                              ev.stopPropagation()
                              setDeptEmployee(e)
                              setShowDeptModal(true)
                            }}
                          >
                            <Building2 className="h-4 w-4" />
                          </button>
                          <button
                            type="button"
                            title="离职"
                            aria-label={`为${e.name}办理离职`}
                            className="rounded-md p-1.5 text-gray-500 transition hover:bg-danger/10 hover:text-danger"
                            onClick={(ev) => {
                              ev.stopPropagation()
                              setResignEmployee(e)
                              setShowResignModal(true)
                            }}
                          >
                            <UserX className="h-4 w-4" />
                          </button>
                        </div>
                      )}
                      {e.hasTermination && e.status === 'ACTIVE' && e.latestTerminationStatus !== 'CANCELLED' && e.latestTerminationStatus !== 'COMPLETED' && (
                        <div className="flex items-center justify-center gap-2">
                          <span className={`text-xs ${e.latestTerminationType === 'RESIGNATION' ? 'text-blue-600' : 'text-amber-600'}`}>
                            {e.latestTerminationType === 'RESIGNATION' ? '待离职' : '待解聘'}
                          </span>
                          <button
                            type="button"
                            title="撤回"
                            aria-label={`撤回${e.name}的${e.latestTerminationType === 'RESIGNATION' ? '离职' : '解聘'}记录`}
                            className="rounded-md p-1.5 text-gray-400 transition hover:bg-danger/10 hover:text-danger"
                            onClick={async (ev) => {
                              ev.stopPropagation()
                              if (e.latestTerminationId && await confirm({
                                title: '撤回确认',
                                message: `确认撤回${e.latestTerminationType === 'RESIGNATION' ? '离职' : '解聘'}记录？`,
                              })) {
                                revokeMutation.mutate(e.latestTerminationId)
                              }
                            }}
                          >
                            <RotateCcw className="h-4 w-4" />
                          </button>
                        </div>
                      )}
                      {e.status === 'RESIGNED' && (
                        <button
                          type="button"
                          title="重新入职"
                          aria-label={`为${e.name}办理重新入职`}
                          className="rounded-md p-1.5 text-primary transition hover:bg-primary/10 hover:text-primary/80"
                          onClick={(ev) => {
                            ev.stopPropagation()
                            setRehireEmployee(e)
                            setShowRehireModal(true)
                          }}
                        >
                          <UserPlus className="h-4 w-4" />
                        </button>
                      )}
                    </td>
                  </tr>
                ))}
              </tbody>
            </table>
          </div>
        </Card>
      )}

      {showAddModal && (
        <AddEmployeeModal
          onClose={() => setShowAddModal(false)}
          onSubmit={(data) => addMutation.mutate(data)}
          loading={addMutation.isPending}
          error={addMutation.error as any}
        />
      )}

      {showResignModal && resignEmployee && (
        <ResignModal
          employee={resignEmployee}
          onClose={() => { setShowResignModal(false); setResignEmployee(null) }}
          onSubmit={(data) => resignMutation.mutate(data)}
          loading={resignMutation.isPending}
          error={resignMutation.error as any}
        />
      )}

      {showRehireModal && rehireEmployee && (
        <RehireModal
          employee={rehireEmployee}
          onClose={() => { setShowRehireModal(false); setRehireEmployee(null) }}
          onSubmit={(data) => rehireMutation.mutate(data)}
          loading={rehireMutation.isPending}
          error={rehireMutation.error as any}
        />
      )}

      {showSalaryModal && salaryEmployee && (
        <SalaryChangeModal
          employee={salaryEmployee}
          onClose={() => { setShowSalaryModal(false); setSalaryEmployee(null) }}
          onSubmit={(data) => salaryChangeMutation.mutate(data)}
          loading={salaryChangeMutation.isPending}
          error={salaryChangeMutation.error as any}
        />
      )}

      {showDeptModal && deptEmployee && (
        <DeptChangeModal
          employee={deptEmployee}
          onClose={() => { setShowDeptModal(false); setDeptEmployee(null) }}
          onSubmit={(data) => deptChangeMutation.mutate(data)}
          loading={deptChangeMutation.isPending}
          error={deptChangeMutation.error as any}
        />
      )}

      {showBatchRenewModal && (
        <Modal open={showBatchRenewModal} onClose={() => { setShowBatchRenewModal(false); setPreviewData(null); }} title="批量续签">
          <div className="space-y-3">
            {!previewData ? (
              <>
                <p className="text-xs text-gray-500">已选择 {selectedIds.size} 名员工，将为其续签劳动合同。</p>
                <div>
                  <Label>续签年限</Label>
                  <Select value={String(batchRenewYears)} onChange={(e) => setBatchRenewYears(Number(e.target.value))}>
                    <option value="1">1年</option>
                    <option value="2">2年</option>
                    <option value="3">3年</option>
                    <option value="5">5年</option>
                  </Select>
                </div>
                {previewRenewMutation.error && (
                  <div className="px-3 py-2 rounded-md bg-red-50 text-red-700 text-xs">
                    {(previewRenewMutation.error as any)?.response?.data?.error?.message || '预检失败'}
                  </div>
                )}
                <div className="flex justify-end gap-2">
                  <Button variant="secondary" onClick={() => { setShowBatchRenewModal(false); setPreviewData(null); }}>取消</Button>
                  <Button
                    onClick={() => {
                      const contractIds = employees
                        .filter((e: any) => selectedIds.has(e.id) && e.latestContract?.id)
                        .map((e: any) => e.latestContract.id)
                      if (contractIds.length === 0) {
                        toast.error('所选员工没有可续签的合同')
                        return
                      }
                      previewRenewMutation.mutate(contractIds)
                    }}
                    disabled={previewRenewMutation.isPending}
                  >
                    {previewRenewMutation.isPending ? '预检中...' : '合规预检'}
                  </Button>
                </div>
              </>
            ) : (
              <>
                <div className="flex items-center justify-between">
                  <p className="text-xs font-medium">合规预检结果</p>
                  <span className={`text-xs px-2 py-0.5 rounded ${previewData.warnings > 0 ? 'bg-amber-100 text-amber-700' : 'bg-green-100 text-green-700'}`}>
                    {previewData.warnings > 0 ? `${previewData.warnings} 项风险提示` : '全部通过'}
                  </span>
                </div>
                <div className="max-h-64 overflow-y-auto space-y-2">
                  {previewData.results.map((r: any) => (
                    <div key={r.contractId} className={`p-2 rounded text-xs ${r.warning ? 'bg-amber-50 border border-amber-200' : 'bg-gray-50'}`}>
                      <div className="flex items-center justify-between">
                        <span className="font-medium">{r.employeeName}</span>
                        <span className="text-gray-400">{r.department}</span>
                      </div>
                      <div className="text-gray-500 mt-1">
                        第 {r.renewalCount} 次续签 · 在职 {r.yearsSinceHire} 年
                      </div>
                      {r.warning && (
                        <div className="mt-1 text-amber-600">{r.warning}</div>
                      )}
                      <div className="mt-1 text-gray-500">{r.suggestion}</div>
                    </div>
                  ))}
                </div>
                {previewData.warnings > 0 && (
                  <div className="px-3 py-2 rounded-md bg-amber-50 text-amber-700 text-xs">
                    存在法律风险，建议处理后再继续操作
                  </div>
                )}
                {batchRenewMutation.error && (
                  <div className="px-3 py-2 rounded-md bg-red-50 text-red-700 text-xs">
                    {(batchRenewMutation.error as any)?.response?.data?.error?.message || '续签失败'}
                  </div>
                )}
                <div className="flex justify-end gap-2">
                  <Button variant="secondary" onClick={() => setPreviewData(null)}>返回修改</Button>
                  <Button
                    onClick={() => {
                      const contractIds = employees
                        .filter((e: any) => selectedIds.has(e.id) && e.latestContract?.id)
                        .map((e: any) => e.latestContract.id)
                      batchRenewMutation.mutate({ contractIds, years: batchRenewYears })
                    }}
                    disabled={batchRenewMutation.isPending}
                  >
                    {batchRenewMutation.isPending ? '续签中...' : `确认续签 ${selectedIds.size} 人`}
                  </Button>
                </div>
              </>
            )}
          </div>
        </Modal>
      )}

      {showBatchTerminateModal && (
        <Modal open={showBatchTerminateModal} onClose={() => { setShowBatchTerminateModal(false); setTerminatePreviewData(null); }} title="批量解聘" size="lg">
          <div className="space-y-3">
            {!terminatePreviewData ? (
              <>
                <p className="text-xs text-gray-500">已选择 {selectedIds.size} 名员工进行批量解聘。</p>
                <div className="grid grid-cols-2 gap-3">
                  <div>
                    <Label>解聘日期</Label>
                    <Input type="date" value={batchTerminateDate} onChange={(e) => setBatchTerminateDate(e.target.value)} />
                  </div>
                  <div>
                    <Label>解聘原因</Label>
                    <Select value={batchTerminateReason} onChange={(e) => setBatchTerminateReason(e.target.value)}>
                      <option value="NEGOTIATED">协商解除</option>
                      <option value="LAYOFF">经济性裁员</option>
                      <option value="NONFAULT">非过错解除</option>
                      <option value="FAULT">过错解除</option>
                      <option value="EXPIRED">合同到期不续签</option>
                    </Select>
                  </div>
                </div>
                {previewTerminateMutation.error && (
                  <div className="px-3 py-2 rounded-md bg-red-50 text-red-700 text-xs">
                    {(previewTerminateMutation.error as any)?.response?.data?.error?.message || '预检失败'}
                  </div>
                )}
                <div className="flex justify-end gap-2">
                  <Button variant="secondary" onClick={() => { setShowBatchTerminateModal(false); setTerminatePreviewData(null); }}>取消</Button>
                  <Button
                    onClick={() => {
                      const items = Array.from(selectedIds).map(id => ({
                        employeeId: id,
                        reason: batchTerminateReason,
                        terminationDate: batchTerminateDate,
                      }))
                      previewTerminateMutation.mutate(items)
                    }}
                    disabled={previewTerminateMutation.isPending}
                  >
                    {previewTerminateMutation.isPending ? '预检中...' : '合规预检'}
                  </Button>
                </div>
              </>
            ) : (
              <>
                <div className="flex items-center justify-between">
                  <p className="text-xs font-medium">合规预检结果</p>
                  <span className={`text-xs px-2 py-0.5 rounded ${terminatePreviewData.warnings > 0 ? 'bg-red-100 text-red-700' : 'bg-green-100 text-green-700'}`}>
                    {terminatePreviewData.warnings > 0 ? `${terminatePreviewData.warnings} 项风险提示` : '全部通过'}
                  </span>
                </div>
                <div className="max-h-64 overflow-y-auto space-y-2">
                  {terminatePreviewData.results.map((r: any) => (
                    <div key={r.employeeId} className={`p-2 rounded text-xs ${r.warnings.length > 0 ? 'bg-red-50 border border-red-200' : 'bg-gray-50'}`}>
                      <div className="flex items-center justify-between">
                        <span className="font-medium">{r.employeeName}</span>
                        <span className="text-gray-400">{r.department}</span>
                      </div>
                      <div className="text-gray-500 mt-1">
                        {terminateReasonMap[r.reason] || r.reason} · {r.terminationDate}
                      </div>
                      {r.warnings.length > 0 && r.warnings.map((w: string, i: number) => (
                        <div key={i} className="mt-1 text-red-600">{w}</div>
                      ))}
                    </div>
                  ))}
                </div>
                {terminatePreviewData.warnings > 0 && (
                  <div className="px-3 py-2 rounded-md bg-red-50 text-red-700 text-xs">
                    存在法律风险，建议处理后再继续操作
                  </div>
                )}
                {batchTerminateMutation.error && (
                  <div className="px-3 py-2 rounded-md bg-red-50 text-red-700 text-xs">
                    {(batchTerminateMutation.error as any)?.response?.data?.error?.message || '解聘失败'}
                  </div>
                )}
                <div className="flex justify-end gap-2">
                  <Button variant="secondary" onClick={() => setTerminatePreviewData(null)}>返回修改</Button>
                  <Button
                    variant="danger"
                    onClick={() => {
                      const items = Array.from(selectedIds).map(id => ({
                        employeeId: id,
                        reason: batchTerminateReason,
                        terminationDate: batchTerminateDate,
                      }))
                      batchTerminateMutation.mutate(items)
                    }}
                    disabled={batchTerminateMutation.isPending}
                  >
                    {batchTerminateMutation.isPending ? '解聘中...' : `确认解聘 ${selectedIds.size} 人`}
                  </Button>
                </div>
              </>
            )}
          </div>
        </Modal>
      )}
    </div>
  )
}