import { buildTeamWorkloadInsights } from '@/lib/ding-workflow-sync'

jest.mock('mssql', () => ({
  __esModule: true,
  default: {},
}))

jest.mock('@/lib/prisma', () => ({ prisma: {} }))
jest.mock('@/lib/brand-center-access', () => ({ resolveBrandCenterAccessForUser: jest.fn() }))

function rosterRow(overrides: Partial<{
  id: string
  dingtalkUserId: string | null
  displayName: string
  flowerName: string | null
  realName: string | null
  departmentName: string | null
  departmentPath: string | null
  employmentState: string | null
  departmentMemberships: Array<{ departmentName: string | null; departmentPath: string | null; isPrimary: boolean }>
}> = {}) {
  return {
    id: 'person-1',
    dingtalkUserId: 'ding-1',
    displayName: '一号员工',
    flowerName: null,
    realName: null,
    departmentName: '设计部',
    departmentPath: '品牌中心/设计部',
    employmentState: 'ACTIVE',
    departmentMemberships: [],
    ...overrides,
  }
}

function snapshotRow(id: string, assignees: string[], title = id) {
  return {
    processInstanceId: id,
    businessId: `business-${id}`,
    title,
    processCode: 'PROC-ART',
    projectType: '美术设计流程',
    activeTasks: assignees.map((assigneeUserId, index) => ({
      taskId: `${id}-task-${index}`,
      activityId: `activity-${index}`,
      nodeName: `节点${index + 1}`,
      assigneeUserId,
      assigneeName: assigneeUserId,
      assigneeDepartment: '品牌中心/设计部',
      isBrandCenter: true,
      isLeadership: false,
      isActive: true,
      reviewPassed: false,
      result: null,
      createdAt: null,
      finishedAt: null,
    })),
  }
}

describe('buildTeamWorkloadInsights', () => {
  it('排除指定人员、把空闲人员计入平均值，并按流程去重', () => {
    const insights = buildTeamWorkloadInsights(
      [
        rosterRow({ id: 'busy', dingtalkUserId: 'busy', displayName: '忙碌员工' }),
        rosterRow({ id: 'idle', dingtalkUserId: 'idle', displayName: '空闲员工', departmentName: '内容部', departmentPath: '品牌中心/内容部' }),
        rosterRow({ id: 'excluded', dingtalkUserId: 'excluded', displayName: '元泽' }),
        rosterRow({ id: 'resigned', dingtalkUserId: 'resigned', displayName: '离职员工', employmentState: 'RESIGNED' }),
      ],
      [
        snapshotRow('project-1', ['busy', 'busy']),
        snapshotRow('project-2', ['busy']),
        snapshotRow('project-3', ['busy']),
        snapshotRow('project-excluded', ['excluded']),
      ],
      { lastSyncedAt: '2026-08-31T02:00:00.000Z', syncStatus: 'ready' },
    )

    expect(insights.summary).toMatchObject({
      averageLoadPercent: 75,
      personnelCount: 2,
      busyPersonnel: 1,
      idlePersonnel: 1,
      activeProjectAssignments: 3,
      sourceOngoingProjects: 4,
    })
    expect(insights.departments).toEqual(expect.arrayContaining([
      expect.objectContaining({ name: '设计部', personnelCount: 1, averageLoadPercent: 150 }),
      expect.objectContaining({ name: '内容部', personnelCount: 1, averageLoadPercent: 0 }),
    ]))
    const busy = insights.departments.find((department) => department.name === '设计部')!.people[0]
    expect(busy.activeProjectCount).toBe(3)
    expect(busy.loadPercent).toBe(150)
    expect(busy.status).toBe('overloaded')
    expect(busy.projects).toHaveLength(3)
  })

  it('只统计当前活跃节点，并以当前花名册组织归属为准', () => {
    const insights = buildTeamWorkloadInsights(
      [rosterRow({
        departmentName: '品牌中心',
        departmentPath: '品牌中心',
        departmentMemberships: [{ departmentName: '设计部', departmentPath: '品牌中心/设计部', isPrimary: false }],
      })],
      [{
        ...snapshotRow('project-1', ['ding-1']),
        activeTasks: [
          { ...snapshotRow('project-1', ['ding-1']).activeTasks[0], isActive: false },
          { ...snapshotRow('project-1', ['ding-1']).activeTasks[0], taskId: 'other', isBrandCenter: false, isActive: true },
        ],
      }],
      { lastSyncedAt: null, syncStatus: 'pending' },
    )
    expect(insights.summary.activeProjectAssignments).toBe(1)
    expect(insights.summary.averageLoadPercent).toBe(50)
    expect(insights.departments[0]).toMatchObject({ name: '设计部', personnelCount: 1 })
  })

  it('排除商品企划部及其流程归属，不纳入人员和负荷平均值', () => {
    const insights = buildTeamWorkloadInsights(
      [
        rosterRow({ id: 'design', dingtalkUserId: 'design', displayName: '设计员工' }),
        rosterRow({
          id: 'planning',
          dingtalkUserId: 'planning',
          displayName: '企划员工',
          departmentName: '商品企划部',
          departmentPath: '品牌中心/商品企划部',
        }),
      ],
      [
        snapshotRow('design-project', ['design']),
        snapshotRow('planning-project', ['planning']),
      ],
      { lastSyncedAt: null, syncStatus: 'ready' },
    )

    expect(insights.summary).toMatchObject({
      personnelCount: 1,
      busyPersonnel: 1,
      idlePersonnel: 0,
      activeProjectAssignments: 1,
      averageLoadPercent: 50,
      sourceOngoingProjects: 2,
      excludedDepartmentNames: ['商品企划部'],
    })
    expect(insights.departments).toHaveLength(1)
    expect(insights.departments[0]).toMatchObject({
      name: '设计部',
      personnelCount: 1,
      activeProjectAssignments: 1,
    })
    expect(insights.departments.some((department) => department.name === '商品企划部')).toBe(false)
    expect(insights.departments.flatMap((department) => department.people).map((person) => person.name)).toEqual(['设计员工'])
  })
})