import { getServerSession } from 'next-auth'
import { prisma } from '@/lib/prisma'

jest.mock('next-auth', () => ({
  getServerSession: jest.fn(),
}))

jest.mock('@/lib/auth', () => ({
  authOptions: {},
}))

jest.mock('@/lib/prisma', () => ({
  prisma: {
    organizationUnit: {
      findFirst: jest.fn(),
      findMany: jest.fn(),
    },
    performanceSurveyEmployeeProfile: {
      findMany: jest.fn(),
    },
    user: {
      findMany: jest.fn(),
    },
  },
}))

jest.mock('@/lib/department-permission', () => ({
  isAdmin: jest.fn((role: string) => ['ADMIN', 'SYSTEM_ADMIN', 'DEPT_ADMIN'].includes(role)),
  isSystemAdmin: jest.fn((role: string) => ['ADMIN', 'SYSTEM_ADMIN'].includes(role)),
  isDepartmentAdmin: jest.fn((role: string) => role === 'DEPT_ADMIN'),
}))

const { TextDecoder, TextEncoder } = require('util')
const { clearImmediate, setImmediate } = require('timers')
Object.assign(globalThis, { TextDecoder, TextEncoder, clearImmediate, setImmediate })
const edgePrimitives = require('next/dist/compiled/@edge-runtime/primitives')
Object.assign(globalThis, {
  Request: edgePrimitives.Request,
  Response: edgePrimitives.Response,
  Headers: edgePrimitives.Headers,
})

const { GET } = require('@/app/api/organization/route') as typeof import('@/app/api/organization/route')

const companyPath = '江苏简尚品牌管理有限公司'
const brandPath = `${companyPath}/品牌中心`
const supportPath = `${companyPath}/业务支持`

const units = [
  {
    id: 'company',
    name: '江苏简尚品牌管理有限公司',
    path: companyPath,
    level: 0,
    parentId: null,
    sourceDeptId: 1,
  },
  {
    id: 'brand',
    name: '品牌中心',
    path: brandPath,
    level: 1,
    parentId: 'company',
    sourceDeptId: 2,
  },
  {
    id: 'support',
    name: '业务支持',
    path: supportPath,
    level: 1,
    parentId: 'company',
    sourceDeptId: 3,
  },
]

function createProfile(overrides: Record<string, unknown> = {}) {
  return {
    id: 'profile-brand',
    displayName: '花名册员工',
    realName: '花名册实名',
    jobNumber: 'HR001',
    departmentPath: brandPath,
    departmentName: '品牌中心',
    positionTitle: '设计师',
    positionLevel: 'P2',
    levelType: 'P',
    managerName: '负责人',
    isLeadership: false,
    employmentState: 'ACTIVE',
    sourcePayload: null,
    departmentMemberships: [],
    userBindings: [],
    ...overrides,
  }
}

function request(query = '') {
  return { url: `https://sc.jiansun.vip/api/organization${query}` } as any
}

describe('/api/organization HR 花名册口径', () => {
  beforeEach(() => {
    jest.clearAllMocks()
    ;(getServerSession as jest.Mock).mockResolvedValue({
      user: { id: 'admin-1', role: 'SYSTEM_ADMIN' },
    })
    ;(prisma.organizationUnit.findMany as jest.Mock).mockResolvedValue(units)
    ;(prisma.organizationUnit.findFirst as jest.Mock).mockResolvedValue(null)
    ;(prisma.user.findMany as jest.Mock).mockResolvedValue([])
  })

  test('未注册素材库账号的 HR 员工仍进入组织树和人员明细', async () => {
    ;(prisma.performanceSurveyEmployeeProfile.findMany as jest.Mock).mockResolvedValue([
      createProfile(),
      createProfile({
        id: 'profile-bound',
        displayName: '已绑定员工',
        realName: 'HR 权威实名',
        jobNumber: 'HR002',
        userBindings: [
          {
            userId: 'user-2',
            user: { username: 'material-user', isActive: true },
          },
        ],
      }),
    ])

    const response = await GET(request())
    const body = await response.json()

    expect(response.status).toBe(200)
    expect(body.summary).toEqual(expect.objectContaining({
      totalEmployees: 2,
      activeEmployees: 2,
      visibleCount: 2,
      scope: 'all',
    }))
    expect(body.employees).toEqual(expect.arrayContaining([
      expect.objectContaining({
        employeeProfileId: 'profile-brand',
        userId: null,
        username: null,
        realName: '花名册实名',
        accountIsActive: null,
      }),
      expect.objectContaining({
        employeeProfileId: 'profile-bound',
        userId: 'user-2',
        username: 'material-user',
        realName: 'HR 权威实名',
        accountIsActive: true,
      }),
    ]))
    expect(body.tree[0]).toEqual(expect.objectContaining({ count: 2 }))
  })

  test('离职人员默认隐藏，明确选择后才显示', async () => {
    ;(prisma.performanceSurveyEmployeeProfile.findMany as jest.Mock).mockResolvedValue([
      createProfile(),
      createProfile({
        id: 'profile-resigned',
        displayName: '离职员工',
        jobNumber: 'HR003',
        employmentState: 'RESIGNED',
      }),
    ])

    const defaultResponse = await GET(request())
    const defaultBody = await defaultResponse.json()
    expect(defaultBody.employees).toHaveLength(1)
    expect(defaultBody.summary).toEqual(expect.objectContaining({
      totalEmployees: 2,
      activeEmployees: 1,
      inactiveEmployees: 1,
      visibleCount: 1,
    }))

    const allResponse = await GET(request('?includeInactive=true'))
    const allBody = await allResponse.json()
    expect(allBody.employees).toHaveLength(2)
    expect(allBody.summary.visibleCount).toBe(2)
  })

  test('部门管理员只获得本部门 HR 人员与本部门统计', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue({
      user: { id: 'dept-1', role: 'DEPT_ADMIN', managedDepartment: '品牌中心' },
    })
    ;(prisma.organizationUnit.findFirst as jest.Mock).mockResolvedValue({ path: brandPath })
    ;(prisma.performanceSurveyEmployeeProfile.findMany as jest.Mock).mockResolvedValue([
      createProfile(),
      createProfile({
        id: 'profile-support',
        displayName: '业务支持员工',
        jobNumber: 'HR004',
        departmentPath: supportPath,
        departmentName: '业务支持',
      }),
    ])

    const response = await GET(request())
    const body = await response.json()

    expect(response.status).toBe(200)
    expect(body.employees).toHaveLength(1)
    expect(body.employees[0].employeeProfileId).toBe('profile-brand')
    expect(body.summary).toEqual(expect.objectContaining({
      totalEmployees: 1,
      activeEmployees: 1,
      visibleCount: 1,
      scope: brandPath,
    }))
    expect(body.unbound).toEqual([])
    expect(prisma.user.findMany).not.toHaveBeenCalled()
  })

  test('部门管理员缺少有效管理范围时拒绝访问而不是回退全公司', async () => {
    ;(getServerSession as jest.Mock).mockResolvedValue({
      user: { id: 'dept-1', role: 'DEPT_ADMIN', managedDepartment: '不存在的部门' },
    })
    ;(prisma.organizationUnit.findFirst as jest.Mock).mockResolvedValue(null)

    const response = await GET(request())
    const body = await response.json()

    expect(response.status).toBe(403)
    expect(body.error).toBe('未找到可访问部门范围')
    expect(prisma.performanceSurveyEmployeeProfile.findMany).not.toHaveBeenCalled()
  })
})