const employeesRoutes = require("../../../src/routes/employees");

const { buildEmployeeOrganization, buildEmployeeProfile } = employeesRoutes.__testables;

function buildEmployeeRow(overrides = {}) {
  return {
    id: "11111111-1111-4111-8111-111111111111",
    employee_no: "E001",
    name: "Alice",
    title: "员工",
    status: "active",
    direct_manager_id: null,
    department: {
      id: "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
      name: "行政部",
    },
    ...overrides,
  };
}

describe("employee profile organization", () => {
  it("builds reporting chain from top to current employee and keeps direct reports scoped to one hop", async () => {
    const currentEmployee = buildEmployeeRow({
      id: "33333333-3333-4333-8333-333333333333",
      employee_no: "E003",
      name: "Carol",
      title: "专员",
      direct_manager_id: "22222222-2222-4222-8222-222222222222",
      department: { id: "dept-3", name: "采购部" },
    });
    const manager = buildEmployeeRow({
      id: "22222222-2222-4222-8222-222222222222",
      employee_no: "E002",
      name: "Bob",
      title: "经理",
      direct_manager_id: "11111111-1111-4111-8111-111111111111",
      department: { id: "dept-2", name: "财务部" },
    });
    const director = buildEmployeeRow({
      id: "11111111-1111-4111-8111-111111111111",
      employee_no: "E001",
      name: "Alice",
      title: "总监",
      department: { id: "dept-1", name: "管理层" },
    });

    const prisma = {
      employee: {
        findUnique: vi.fn(async ({ where }) => {
          if (where.id === manager.id) return manager;
          if (where.id === director.id) return director;
          return null;
        }),
        findMany: vi.fn().mockResolvedValue([
          buildEmployeeRow({
            id: "44444444-4444-4444-8444-444444444444",
            employee_no: "E004",
            name: "David",
            title: "专员",
            status: "active",
            department: { id: "dept-3", name: "采购部" },
          }),
          buildEmployeeRow({
            id: "55555555-5555-4555-8555-555555555555",
            employee_no: "E005",
            name: "Eve",
            title: "专员",
            status: "archived",
            department: { id: "dept-3", name: "采购部" },
          }),
        ]),
      },
    };

    const organization = await buildEmployeeOrganization(prisma, currentEmployee);

    expect(organization.reportingChain.map((item) => item.id)).toEqual([
      director.id,
      manager.id,
      currentEmployee.id,
    ]);
    expect(organization.reportingChain.at(-1)).toMatchObject({
      id: currentEmployee.id,
      department: { id: "dept-3", name: "采购部" },
    });
    expect(organization.directReports.map((item) => item.id)).toEqual([
      "44444444-4444-4444-8444-444444444444",
      "55555555-5555-4555-8555-555555555555",
    ]);
    expect(prisma.employee.findMany).toHaveBeenCalledWith({
      where: { direct_manager_id: currentEmployee.id },
      orderBy: [{ status: "asc" }, { name: "asc" }],
      select: {
        id: true,
        employee_no: true,
        name: true,
        title: true,
        status: true,
        avatar_path: true,
        department: { select: { id: true, name: true } },
      },
    });
  });

  it("stops on manager cycle and returns the partial reporting chain", async () => {
    const currentEmployee = buildEmployeeRow({
      id: "66666666-6666-4666-8666-666666666666",
      employee_no: "E006",
      name: "Frank",
      title: "经理",
      direct_manager_id: "77777777-7777-4777-8777-777777777777",
    });
    const cycleManager = buildEmployeeRow({
      id: "77777777-7777-4777-8777-777777777777",
      employee_no: "E007",
      name: "Grace",
      title: "总监",
      direct_manager_id: currentEmployee.id,
    });

    const prisma = {
      employee: {
        findUnique: vi.fn(async ({ where }) => (where.id === cycleManager.id ? cycleManager : null)),
        findMany: vi.fn().mockResolvedValue([]),
      },
    };

    const organization = await buildEmployeeOrganization(prisma, currentEmployee);

    expect(organization.reportingChain.map((item) => item.id)).toEqual([cycleManager.id, currentEmployee.id]);
    expect(prisma.employee.findUnique).toHaveBeenCalledTimes(1);
  });

  it("embeds stable organization arrays into employee profile responses", async () => {
    const currentEmployee = {
      ...buildEmployeeRow({
        id: "88888888-8888-4888-8888-888888888888",
        employee_no: "E008",
        name: "Helen",
        title: "主管",
      }),
      phone: "13800000000",
      email: "helen@example.com",
      employment_status: "active",
      department_id: "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
      hire_date: new Date("2026-01-10T00:00:00.000Z"),
      probation_end_date: null,
      last_working_date: null,
      work_location: "上海",
      emergency_contact_name: "联系人",
      emergency_contact_phone: "13900000000",
      notes: "none",
      archived_at: null,
      roles: [{ role_code: "employee" }],
      direct_manager: null,
    };

    const prisma = {
      employee: {
        findUnique: vi.fn(async ({ where }) => (where.id === currentEmployee.id ? currentEmployee : null)),
        findMany: vi.fn().mockResolvedValue([]),
      },
      employeeChecklistTask: {
        findMany: vi.fn().mockResolvedValue([]),
      },
      employeeLifecycleEvent: {
        findMany: vi.fn().mockResolvedValue([]),
      },
      assetCard: {
        findMany: vi.fn().mockResolvedValue([]),
        count: vi.fn().mockResolvedValue(0),
      },
      workflowTask: {
        count: vi.fn().mockResolvedValue(0),
      },
    };

    const profile = await buildEmployeeProfile(prisma, currentEmployee.id);

    expect(profile.organization.reportingChain).toEqual([
      {
        id: currentEmployee.id,
        employeeNo: "E008",
        name: "Helen",
        title: "主管",
        status: "active",
        avatarUrl: null,
        department: {
          id: "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
          name: "行政部",
        },
      },
    ]);
    expect(profile.organization.directReports).toEqual([]);
    expect(profile.assignedAssets).toEqual([]);
  });
});