const Fastify = require("fastify");

const usersRoutes = require("../../../src/routes/users");
const { AppError } = require("../../../src/utils/AppError");

const ACTOR_ID = "11111111-1111-4111-8111-111111111111";
const DEPARTMENT_ID = "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa";
const USER_ID = "22222222-2222-4222-8222-222222222222";
const MANAGER_ID = "33333333-3333-4333-8333-333333333333";

async function buildApp({
  createdEmployeeNo = "HYD000001",
  currentEmployee = null,
  actor = {
    id: ACTOR_ID,
    department_id: DEPARTMENT_ID,
    roleCodes: ["system_admin"],
    permissionCodes: ["system.accounts.manage", "system.roles.manage"],
  },
  currentRoles = ["employee"],
} = {}) {
  const app = Fastify();

  const departmentFindUnique = vi.fn().mockResolvedValue({
    id: DEPARTMENT_ID,
    archived_at: null,
  });
  const employeeCreate = vi.fn(async ({ data }) => ({
    id: USER_ID,
    employee_no: data.employee_no ?? createdEmployeeNo,
    name: data.name,
    phone: data.phone,
    email: data.email,
    status: data.status,
    department_id: data.department_id,
    title: data.title,
    direct_manager_id: data.direct_manager_id ?? null,
    hire_date: data.hire_date,
    created_at: data.created_at,
    updated_at: data.updated_at,
  }));
  const employeeFindUnique = vi
    .fn()
    .mockResolvedValue(
      currentEmployee ?? {
        id: USER_ID,
        employee_no: "HYD000321",
        name: "Alice",
        phone: "13800000000",
        email: "alice@example.com",
        status: "active",
        department_id: DEPARTMENT_ID,
        title: "员工",
        direct_manager_id: null,
        hire_date: new Date("2026-05-01T00:00:00.000Z"),
        bank_account_encrypted: "",
        bank_name: "",
        id_number_encrypted: null,
        archived_at: null,
        created_at: new Date("2026-05-01T00:00:00.000Z"),
        updated_at: new Date("2026-05-01T00:00:00.000Z"),
        roles: [{ role_code: "employee" }],
      },
    );
  const employeeUpdate = vi.fn(async ({ data }) => ({
    ...(currentEmployee ?? {
      id: USER_ID,
      employee_no: "HYD000321",
      name: "Alice",
      phone: "13800000000",
      email: "alice@example.com",
      status: "active",
      department_id: DEPARTMENT_ID,
      title: "员工",
      direct_manager_id: null,
      hire_date: new Date("2026-05-01T00:00:00.000Z"),
      archived_at: null,
      created_at: new Date("2026-05-01T00:00:00.000Z"),
      updated_at: new Date("2026-05-01T00:00:00.000Z"),
      roles: [{ role_code: "employee" }],
      wecom_identity_binding: null,
      wecom_directory_sync_runs: [],
    }),
    ...data,
  }));
  const employeeRoleCreateMany = vi.fn().mockResolvedValue({ count: 1 });
  const employeeRoleFindMany = vi.fn().mockResolvedValue(currentRoles.map((role_code) => ({ role_code })));
  const employeeRoleDeleteMany = vi.fn().mockResolvedValue({ count: currentRoles.length });
  const auditCreate = vi.fn().mockResolvedValue({ id: "audit-1" });
  const authSessionUpdateMany = vi.fn().mockResolvedValue({ count: 0 });
  const passwordResetCodeUpdateMany = vi.fn().mockResolvedValue({ count: 0 });
  const emailLoginCodeUpdateMany = vi.fn().mockResolvedValue({ count: 0 });
  const lifecycleEventCreate = vi.fn().mockResolvedValue({ id: "lifecycle-1" });
  const checklistTaskCreateMany = vi.fn().mockResolvedValue({ count: 1 });
  const wecomSyncRunCreate = vi.fn().mockResolvedValue({ id: "sync-run-1" });
  const queryRaw = vi.fn(async (strings, employeeId) => {
    const sql = Array.isArray(strings) ? strings.join(" ") : String(strings ?? "");
    if (sql.includes('FROM "employee_roles"')) {
      return currentRoles.map((role_code) => ({ role_code }));
    }
    if (sql.includes('FROM "employees"')) {
      return [{ id: employeeId }];
    }
    return [];
  });

  const tx = {
    department: {
      findUnique: departmentFindUnique,
    },
    employee: {
      create: employeeCreate,
      findUnique: employeeFindUnique,
      update: employeeUpdate,
    },
    employeeRole: {
      createMany: employeeRoleCreateMany,
      deleteMany: employeeRoleDeleteMany,
    },
    employeeLifecycleEvent: {
      create: lifecycleEventCreate,
    },
    employeeChecklistTask: {
      createMany: checklistTaskCreateMany,
    },
    auditLog: {
      create: auditCreate,
    },
    authSession: {
      updateMany: authSessionUpdateMany,
    },
    passwordResetCode: {
      updateMany: passwordResetCodeUpdateMany,
    },
    emailLoginCode: {
      updateMany: emailLoginCodeUpdateMany,
    },
    $queryRaw: queryRaw,
  };

  app.decorate("config", { employeeLifecycleEnabled: true });
  app.decorate("prisma", {
    department: {
      findUnique: departmentFindUnique,
    },
    employee: {
      findUnique: employeeFindUnique,
    },
    employeeRole: {
      findMany: employeeRoleFindMany,
    },
    featureFlag: {
      findUnique: vi.fn().mockResolvedValue({
        id: "flag-employee-lifecycle",
        flag_key: "employee_lifecycle_v1",
        override_mode: "force_on",
        rollout_type: "global",
        department_ids: [],
        version: 1,
      }),
    },
    $transaction: vi.fn(async (callback) => callback(tx)),
  });
  app.decorate("requirePermission", (permissionCode) => async (request) => {
    request.employee = actor;
    const permissions = request.employee.permissionCodes ?? [];
    if (!permissions.includes("*") && !permissions.includes(permissionCode)) {
      throw new AppError({ code: "PERM_001", message: "无权限", statusCode: 403 });
    }
  });
  app.decorate("authenticate", async (request) => {
    request.employee = actor;
  });
  app.decorate("hasPermission", (employee, permissionCode) => {
    const permissions = employee?.permissionCodes ?? [];
    return permissions.includes("*") || permissions.includes(permissionCode);
  });
  app.setErrorHandler((error, request, reply) => {
    if (error instanceof AppError) {
      return reply.status(error.statusCode).send({
        requestId: request.id,
        error: { code: error.code, message: error.message, details: error.details ?? {} },
      });
    }
    return reply.status(500).send({
      requestId: request.id,
      error: { code: error.code ?? "SYS_001", message: error.message ?? "服务器内部错误", details: error.details ?? {} },
    });
  });

  await app.register(usersRoutes, { prefix: "/api" });

  return {
    app,
    departmentFindUnique,
    employeeCreate,
    employeeFindUnique,
    employeeUpdate,
    employeeRoleCreateMany,
    employeeRoleFindMany,
    employeeRoleDeleteMany,
    auditCreate,
    authSessionUpdateMany,
    passwordResetCodeUpdateMany,
    emailLoginCodeUpdateMany,
    lifecycleEventCreate,
    checklistTaskCreateMany,
    wecomSyncRunCreate,
    queryRaw,
  };
}

describe("usersRoutes write flows", () => {
  it("creates a user without employeeNo or password and returns generated credentials", async () => {
    const { app, employeeCreate, employeeRoleCreateMany } = await buildApp();

    const response = await app.inject({
      method: "POST",
      url: "/api/users",
      payload: {
        name: "张三",
        phone: "13800000001",
        email: "ZhangSan@Example.COM",
        roles: ["employee"],
        syncWecomDirectory: false,
      },
    });

    expect(response.statusCode).toBe(200);
    expect(employeeCreate).toHaveBeenCalledWith(
      expect.objectContaining({
        data: expect.objectContaining({ email: "zhangsan@example.com" }),
      }),
    );
    expect(employeeCreate.mock.calls[0][0].data).not.toHaveProperty("employee_no");
    expect(employeeRoleCreateMany).toHaveBeenCalledWith(
      expect.objectContaining({
        data: [
          expect.objectContaining({
            employee_id: USER_ID,
            role_code: "employee",
          }),
        ],
      }),
    );

    const payload = response.json().data;
    expect(payload).toEqual(
      expect.objectContaining({
        id: USER_ID,
        employeeNo: "HYD000001",
        name: "张三",
        email: "zhangsan@example.com",
        roleCodes: ["employee"],
      }),
    );
    expect(payload.oneTimePassword).toMatch(/^ResetA1[a-f0-9]{12}$/);

    await app.close();
  });

  it("creates a user with a null phone when the field is omitted", async () => {
    const { app, employeeCreate } = await buildApp();

    const response = await app.inject({
      method: "POST",
      url: "/api/users",
      payload: {
        name: "暂缺手机号成员",
        email: "no-phone@example.com",
        roles: ["employee"],
        syncWecomDirectory: false,
      },
    });

    expect(response.statusCode).toBe(200);
    expect(employeeCreate).toHaveBeenCalledWith(expect.objectContaining({
      data: expect.objectContaining({ phone: null }),
    }));

    await app.close();
  });

  it("allows an administrator to explicitly clear an existing phone to null", async () => {
    const { app, employeeUpdate } = await buildApp();

    const response = await app.inject({
      method: "PATCH",
      url: `/api/users/${USER_ID}`,
      payload: { phone: null },
    });

    expect(response.statusCode).toBe(200);
    expect(employeeUpdate).toHaveBeenCalledWith(expect.objectContaining({
      data: expect.objectContaining({ phone: null }),
    }));

    await app.close();
  });

  it("rejects employeeNo changes on patch", async () => {
    const { app, employeeFindUnique, employeeUpdate } = await buildApp();

    const response = await app.inject({
      method: "PATCH",
      url: `/api/users/${USER_ID}`,
      payload: {
        employeeNo: "HYD999999",
        name: "李四",
      },
    });

    expect(response.statusCode).toBe(409);
    expect(response.json().error).toEqual(
      expect.objectContaining({
        code: "VALID_001",
        details: { employeeNo: "immutable", reasonCode: "user.employee_no_immutable" },
      }),
    );
    expect(employeeFindUnique).not.toHaveBeenCalled();
    expect(employeeUpdate).not.toHaveBeenCalled();

    await app.close();
  });

  it("prevents a system administrator from creating protected administrator roles", async () => {
    const { app, departmentFindUnique, employeeCreate } = await buildApp();

    const response = await app.inject({
      method: "POST",
      url: "/api/users",
      payload: {
        name: "受限账号",
        phone: "13800000002",
        email: "restricted@example.com",
        roles: ["employee", "system_admin"],
      },
    });

    expect(response.statusCode).toBe(403);
    expect(response.json().error.details).toEqual({ role: "protected_role_change_not_allowed" });
    expect(departmentFindUnique).not.toHaveBeenCalled();
    expect(employeeCreate).not.toHaveBeenCalled();

    await app.close();
  });

  it("prevents a system administrator from granting or revoking protected roles before mutation", async () => {
    const grantApp = await buildApp();
    const grantResponse = await grantApp.app.inject({
      method: "POST",
      url: `/api/users/${USER_ID}/roles`,
      payload: { roles: ["employee", "admin"] },
    });

    expect(grantResponse.statusCode).toBe(403);
    expect(grantApp.employeeRoleDeleteMany).not.toHaveBeenCalled();
    expect(grantApp.employeeRoleCreateMany).not.toHaveBeenCalled();
    await grantApp.app.close();

    const revokeApp = await buildApp({ currentRoles: ["employee", "system_admin"] });
    const revokeResponse = await revokeApp.app.inject({
      method: "POST",
      url: `/api/users/${USER_ID}/roles`,
      payload: { roles: ["employee"] },
    });

    expect(revokeResponse.statusCode).toBe(403);
    expect(revokeApp.employeeRoleDeleteMany).not.toHaveBeenCalled();
    expect(revokeApp.employeeRoleCreateMany).not.toHaveBeenCalled();
    await revokeApp.app.close();
  });

  it("prevents a system administrator from changing their own business roles before lookup", async () => {
    const testApp = await buildApp();

    const response = await testApp.app.inject({
      method: "POST",
      url: `/api/users/${ACTOR_ID}/roles`,
      payload: { roles: ["employee", "manager", "system_admin"] },
    });

    expect(response.statusCode).toBe(403);
    expect(response.json().error.details).toEqual({ user: "self_role_change_not_allowed" });
    expect(testApp.employeeRoleFindMany).not.toHaveBeenCalled();
    expect(testApp.employeeRoleDeleteMany).not.toHaveBeenCalled();
    expect(testApp.employeeRoleCreateMany).not.toHaveBeenCalled();

    await testApp.app.close();
  });

  it.each([
    {
      name: "批量调部门",
      url: "/api/users/batch/transfer-department",
      payload: { employeeIds: [USER_ID], departmentId: DEPARTMENT_ID },
    },
    {
      name: "批量设直属经理",
      url: "/api/users/batch/set-manager",
      payload: { employeeIds: [USER_ID], managerId: MANAGER_ID },
    },
    {
      name: "批量停用",
      url: "/api/users/batch/disable",
      payload: { employeeIds: [USER_ID] },
    },
    {
      name: "批量启用",
      url: "/api/users/batch/enable",
      payload: { employeeIds: [USER_ID] },
    },
  ])("rejects $name when any target has a protected role before all writes", async ({ url, payload }) => {
    const testApp = await buildApp({ currentRoles: ["employee", "system_admin"] });

    const response = await testApp.app.inject({ method: "POST", url, payload });

    expect(response.statusCode).toBe(403);
    expect(response.json().error.details).toEqual({ user: "protected_account_not_manageable" });
    expect(testApp.queryRaw).toHaveBeenCalledTimes(2);
    expect(testApp.employeeUpdate).not.toHaveBeenCalled();
    expect(testApp.lifecycleEventCreate).not.toHaveBeenCalled();
    expect(testApp.checklistTaskCreateMany).not.toHaveBeenCalled();
    expect(testApp.authSessionUpdateMany).not.toHaveBeenCalled();
    expect(testApp.auditCreate).not.toHaveBeenCalled();
    expect(testApp.wecomSyncRunCreate).not.toHaveBeenCalled();

    await testApp.app.close();
  });

  it.each([
    { name: "更新账号", method: "PATCH", path: "", payload: { name: "受保护账号" } },
    { name: "归档账号", method: "POST", path: "/archive" },
    { name: "停用账号", method: "POST", path: "/disable" },
    { name: "启用账号", method: "POST", path: "/enable" },
    { name: "解锁账号", method: "POST", path: "/unlock" },
  ])("rejects $name for a protected target before account side effects", async ({ method, path, payload }) => {
    const testApp = await buildApp({ currentRoles: ["employee", "admin"] });

    const response = await testApp.app.inject({
      method,
      url: `/api/users/${USER_ID}${path}`,
      ...(payload ? { payload } : {}),
    });

    expect(response.statusCode).toBe(403);
    expect(response.json().error.details).toEqual({ user: "protected_account_not_manageable" });
    expect(testApp.employeeUpdate).not.toHaveBeenCalled();
    expect(testApp.authSessionUpdateMany).not.toHaveBeenCalled();
    expect(testApp.auditCreate).not.toHaveBeenCalled();
    expect(testApp.wecomSyncRunCreate).not.toHaveBeenCalled();

    await testApp.app.close();
  });

  it("allows an emergency administrator to assign system_admin with before/after role audit", async () => {
    const testApp = await buildApp({
      actor: {
        id: ACTOR_ID,
        department_id: DEPARTMENT_ID,
        roleCodes: ["admin"],
        permissionCodes: ["*"],
      },
    });

    const response = await testApp.app.inject({
      method: "POST",
      url: `/api/users/${USER_ID}/roles`,
      payload: { roles: ["employee", "system_admin"] },
    });

    expect(response.statusCode).toBe(200);
    expect(testApp.employeeRoleDeleteMany).toHaveBeenCalledTimes(1);
    expect(testApp.auditCreate).toHaveBeenCalledWith({
      data: expect.objectContaining({
        action: "SYSTEM_USER_ROLES_SET",
        extra: {
          beforeRoleCodes: ["employee"],
          afterRoleCodes: ["employee", "system_admin"],
        },
      }),
    });

    await testApp.app.close();
  });

  it("prevents a system administrator from resetting a protected account", async () => {
    const testApp = await buildApp({ currentRoles: ["employee", "admin"] });

    const response = await testApp.app.inject({
      method: "POST",
      url: `/api/users/${USER_ID}/reset-password`,
      payload: { newPassword: "AdministratorReset1234" },
    });

    expect(response.statusCode).toBe(403);
    expect(response.json().error.details).toEqual({ user: "protected_account_not_manageable" });
    expect(testApp.employeeUpdate).not.toHaveBeenCalled();
    expect(testApp.authSessionUpdateMany).not.toHaveBeenCalled();
    expect(testApp.auditCreate).not.toHaveBeenCalled();

    await testApp.app.close();
  });

  it("revokes sessions and outstanding challenges during an administrator password reset", async () => {
    const {
      app,
      employeeUpdate,
      authSessionUpdateMany,
      passwordResetCodeUpdateMany,
      emailLoginCodeUpdateMany,
      auditCreate,
    } = await buildApp();

    const response = await app.inject({
      method: "POST",
      url: `/api/users/${USER_ID}/reset-password`,
      payload: { newPassword: "AdministratorReset1234" },
    });

    expect(response.statusCode).toBe(200);
    expect(response.json().data).toEqual({
      id: USER_ID,
      oneTimePassword: "AdministratorReset1234",
    });
    expect(employeeUpdate).toHaveBeenCalledWith({
      where: { id: USER_ID },
      data: expect.objectContaining({
        must_change_password: true,
        token_version: { increment: 1 },
        email_login_code_failed_count: 0,
        password_reset_failed_count: 0,
        password_reset_request_count: 0,
      }),
    });
    expect(authSessionUpdateMany).toHaveBeenCalledWith({
      where: { employee_id: USER_ID, revoked_at: null },
      data: { revoked_at: expect.any(Date), last_seen_at: expect.any(Date) },
    });
    expect(passwordResetCodeUpdateMany).toHaveBeenCalledWith({
      where: { employee_id: USER_ID, invalidated_at: null },
      data: { invalidated_at: expect.any(Date) },
    });
    expect(emailLoginCodeUpdateMany).toHaveBeenCalledWith({
      where: { employee_id: USER_ID, used_at: null },
      data: { used_at: expect.any(Date) },
    });
    expect(auditCreate).toHaveBeenCalledWith({
      data: expect.objectContaining({ action: "SYSTEM_USER_PASSWORD_RESET" }),
    });

    await app.close();
  });
});

describe("users hireDate calendar boundary", () => {
  it.each(["POST", "PATCH"].flatMap((method) => ["2026-02-29", "2026-04-31", "2026-00-10"].map((date) => [method, date])))(
    "%s rejects %s before account, role, audit or lifecycle writes", async (method, hireDate) => {
      const fixture = await buildApp();
      const { app } = fixture;
      try {
        const response = await app.inject({ method, url: method === "POST" ? "/api/users" : `/api/users/${USER_ID}`,
          payload: method === "POST" ? { name: "Synthetic", email: "calendar@example.test", roles: ["employee"], syncWecomDirectory: false, hireDate } : { hireDate } });
        expect(response.statusCode).toBe(400);
        expect(response.json().error.code).toBe("VALID_001");
        expect(response.json().error.details).toEqual({ formErrors: [], fieldErrors: { hireDate: ["invalid_calendar_date"] }, reasonCode: method === "POST" ? "user.create_input_invalid" : "user.update_input_invalid" });
        expect(app.prisma.$transaction).not.toHaveBeenCalled();
        for (const name of ["employeeCreate", "employeeUpdate", "employeeRoleCreateMany", "employeeRoleDeleteMany", "auditCreate", "lifecycleEventCreate", "checklistTaskCreateMany", "wecomSyncRunCreate"]) expect(fixture[name]).not.toHaveBeenCalled();
      } finally { await app.close(); }
    },
  );

  it.each(["POST", "PATCH"].flatMap((method) => ["2024-02-29", "2026-04-30", undefined].map((date) => [method, date])))(
    "%s preserves valid or omitted hireDate %s", async (method, hireDate) => {
      const { app, employeeCreate, employeeUpdate } = await buildApp();
      try {
        const before = Date.now();
        const response = await app.inject({ method, url: method === "POST" ? "/api/users" : `/api/users/${USER_ID}`,
          payload: method === "POST" ? { name: "Synthetic", email: "calendar@example.test", roles: ["employee"], syncWecomDirectory: false, ...(hireDate ? { hireDate } : {}) } : { title: "员工", ...(hireDate ? { hireDate } : {}) } });
        expect(response.statusCode).toBe(200);
        const data = (method === "POST" ? employeeCreate : employeeUpdate).mock.calls[0][0].data;
        if (hireDate) expect(data.hire_date.toISOString()).toBe(`${hireDate}T00:00:00.000Z`);
        else if (method === "PATCH") expect(data).not.toHaveProperty("hire_date");
        else { expect(data.hire_date.getTime()).toBeGreaterThanOrEqual(before); expect(data.hire_date.getTime()).toBeLessThanOrEqual(Date.now()); }
      } finally { await app.close(); }
    },
  );
});


describe("user immutable and empty update reasons", () => {
  it.each([[{ employeeNo: "SYNTHETIC" }, 409, { employeeNo: "immutable", reasonCode: "user.employee_no_immutable" }], [{}, 400, { body: "empty", reasonCode: "user.update_empty" }]])("rejects %j without account writes", async (payload, status, details) => {
    const { app, employeeUpdate, auditCreate } = await buildApp();
    try {
      const response = await app.inject({ method: "PATCH", url: `/api/users/${USER_ID}`, payload });
      expect(response.statusCode).toBe(status);
      expect(response.json().error).toEqual({ code: "VALID_001", message: "参数校验失败", details });
      expect(app.prisma.$transaction).not.toHaveBeenCalled();
      expect(employeeUpdate).not.toHaveBeenCalled();
      expect(auditCreate).not.toHaveBeenCalled();
    } finally { await app.close(); }
  });
});

describe("remaining account error reasons", () => {
  function expectNoWrites(t) {
    for (const fn of [t.employeeCreate, t.employeeUpdate, t.employeeRoleCreateMany, t.employeeRoleDeleteMany, t.auditCreate, t.authSessionUpdateMany, t.passwordResetCodeUpdateMany, t.emailLoginCodeUpdateMany, t.lifecycleEventCreate, t.checklistTaskCreateMany, t.wecomSyncRunCreate]) expect(fn).not.toHaveBeenCalled();
  }
  it.each([
    ["PATCH", "/api/users/bad", { name: "合成" }, "user.id_invalid", { id: "invalid_uuid" }],
    ["POST", `/api/users/${USER_ID}/reset-password`, { newPassword: "" }, "user.reset_password_input_invalid", null],
    ["POST", `/api/users/${USER_ID}/roles`, { roles: [] }, "user.roles_input_invalid", null],
    ["POST", "/api/users/batch/transfer-department", { employeeIds: [] }, "user.batch_transfer_input_invalid", null],
    ["POST", "/api/users/batch/set-manager", { employeeIds: [] }, "user.batch_manager_input_invalid", null],
    ["POST", "/api/users/batch/disable", { employeeIds: [] }, "user.batch_toggle_input_invalid", null],
    ["POST", "/api/users/batch/enable", { employeeIds: [] }, "user.batch_toggle_input_invalid", null],
  ])("%s %s explains invalid input before transactions", async (method, url, payload, reasonCode, details) => {
    const t = await buildApp();
    try {
      const response = await t.app.inject({ method, url, payload });
      expect(response.statusCode).toBe(400);
      expect(response.json().error).toMatchObject({ code: "VALID_001", details: { reasonCode } });
      if (details) expect(response.json().error.details).toEqual({ ...details, reasonCode });
      else expect(response.json().error.details).toMatchObject({ formErrors: expect.any(Array), fieldErrors: expect.any(Object) });
      expect(t.app.prisma.$transaction).not.toHaveBeenCalled(); expectNoWrites(t);
    } finally { await t.app.close(); }
  });

  it.each(["create", "reset"])("preserves password policy failure for %s", async (operation) => {
    const t = await buildApp();
    try {
      const response = await t.app.inject({ method: "POST", url: operation === "create" ? "/api/users" : `/api/users/${USER_ID}/reset-password`, payload: operation === "create" ? { name: "合成", email: "synthetic@example.test", password: "short" } : { newPassword: "short" } });
      expect(response.statusCode).toBe(400);
      expect(response.json().error.details).toMatchObject({ reasonCode: "user.password_policy_failed", [operation === "create" ? "password" : "newPassword"]: expect.arrayContaining(["密码长度必须 ≥ 12", "密码必须包含大写字母", "密码必须包含数字"]) });
      expect(t.app.prisma.$transaction).not.toHaveBeenCalled(); expectNoWrites(t);
    } finally { await t.app.close(); }
  });

  it.each([
    ["department", null, { departmentId: DEPARTMENT_ID }, 400, "user.department_not_found", { departmentId: "not_found" }],
    ["department", { id: DEPARTMENT_ID, archived_at: new Date("2024-01-01T00:00:00Z") }, { departmentId: DEPARTMENT_ID }, 409, "user.department_archived", { departmentId: "archived" }],
    ["employee", null, { directManagerId: MANAGER_ID }, 400, "user.manager_not_found", { directManagerId: "not_found" }],
    ["employee", { id: MANAGER_ID, status: "archived" }, { directManagerId: MANAGER_ID }, 409, "user.manager_inactive", { directManagerId: "inactive" }],
    ["employee", null, { directManagerId: USER_ID }, 409, "user.manager_self_forbidden", { directManagerId: "self_not_allowed" }],
  ])("explains unavailable %s reference", async (model, row, payload, status, reasonCode, details) => {
    const t = await buildApp();
    try {
      (model === "department" ? t.departmentFindUnique : t.employeeFindUnique).mockResolvedValue(row);
      const response = await t.app.inject({ method: "PATCH", url: `/api/users/${USER_ID}`, payload });
      expect(response.statusCode).toBe(status); expect(response.json().error.details).toEqual({ ...details, reasonCode });
      expect(t.app.prisma.$transaction).not.toHaveBeenCalled(); expectNoWrites(t);
    } finally { await t.app.close(); }
  });

  it.each(["archive", "disable", "batch/disable", "roles"])("keeps the self-protection guard for %s", async (operation) => {
    const t = await buildApp({ actor: { id: ACTOR_ID, department_id: DEPARTMENT_ID, roleCodes: ["admin"], permissionCodes: ["*"] } });
    try {
      const response = await t.app.inject({ method: "POST", url: operation === "batch/disable" ? "/api/users/batch/disable" : `/api/users/${ACTOR_ID}/${operation}`, ...(operation === "batch/disable" ? { payload: { employeeIds: Array(51).fill(ACTOR_ID) } } : operation === "roles" ? { payload: { roles: ["employee"] } } : {}) });
      expect(response.statusCode).toBe(409);
      expect(response.json().error.details).toEqual(operation === "roles" ? { user: "self_role_change_not_allowed", reasonCode: "user.self_role_change_forbidden" } : { user: "self_disable_not_allowed", reasonCode: "user.self_disable_forbidden" });
      expect(t.app.prisma.$transaction).not.toHaveBeenCalled(); expectNoWrites(t);
    } finally { await t.app.close(); }
  });

  it("limits distinct batch employees before transactions", async () => {
    const t = await buildApp();
    try {
      const employeeIds = Array.from({ length: 51 }, (_, i) => `00000000-0000-4000-8000-${String(i + 1).padStart(12, "0")}`);
      const response = await t.app.inject({ method: "POST", url: "/api/users/batch/enable", payload: { employeeIds } });
      expect(response.statusCode).toBe(409); expect(response.json().error.details).toEqual({ employeeIds: "too_many", reasonCode: "user.batch_limit_exceeded" });
      expect(t.app.prisma.$transaction).not.toHaveBeenCalled(); expectNoWrites(t);
    } finally { await t.app.close(); }
  });

  it("preserves feature refusal before batch validation", async () => {
    const t = await buildApp();
    try {
      t.app.prisma.featureFlag.findUnique.mockResolvedValue({ flag_key: "employee_lifecycle_v1", override_mode: "force_off", rollout_type: "global", department_ids: [] });
      const response = await t.app.inject({ method: "POST", url: "/api/users/batch/set-manager", payload: {} });
      expect(response.statusCode).toBe(409); expect(response.json().error.details).toEqual({ featureFlag: "employee_lifecycle_v1_disabled", reason: "flag_force_off", reasonCode: "user.lifecycle_disabled" });
      expect(t.app.prisma.$transaction).not.toHaveBeenCalled(); expectNoWrites(t);
    } finally { await t.app.close(); }
  });

  it.each(["POST", "PATCH"])("keeps unique-conflict details for %s", async (method) => {
    const t = await buildApp();
    try {
      t.app.prisma.$transaction.mockRejectedValue({ code: "P2002", meta: { target: ["email"] } });
      const response = await t.app.inject({ method, url: method === "POST" ? "/api/users" : `/api/users/${USER_ID}`, payload: method === "POST" ? { name: "合成", email: "synthetic@example.test" } : { email: "synthetic@example.test" } });
      expect(response.statusCode).toBe(409); expect(response.json().error.details).toEqual({ email: "duplicate", reasonCode: "user.unique_conflict" }); expectNoWrites(t);
    } finally { await t.app.close(); }
  });

  it("fails closed when a synthetic random-source fault produces an unsafe temporary password", async () => {
    const t = await buildApp(); const random = vi.spyOn(require("node:crypto"), "randomBytes").mockReturnValueOnce(Buffer.alloc(0));
    try {
      const response = await t.app.inject({ method: "POST", url: "/api/users", payload: { name: "合成", email: "synthetic@example.test" } });
      expect(response.statusCode).toBe(400); expect(response.json().error.details).toMatchObject({ reasonCode: "user.generated_password_unavailable", password: expect.arrayContaining(["密码长度必须 ≥ 12"]) });
      expect(t.app.prisma.$transaction).not.toHaveBeenCalled(); expectNoWrites(t);
    } finally { random.mockRestore(); await t.app.close(); }
  });
});

describe("system-user creation transaction cost boundary", () => {
  it("finishes real cost12 hashing before beginning the atomic account-role-audit transaction", async () => {
    const t = await buildApp();
    const bcrypt = require("bcryptjs");
    const realHash = bcrypt.hash;
    const events = [];
    const hash = vi.spyOn(bcrypt, "hash").mockImplementation(async (...args) => {
      expect(args[1]).toBe(12); events.push("hash:start");
      const result = await realHash(...args); events.push("hash:done"); return result;
    });
    const transaction = t.app.prisma.$transaction.getMockImplementation();
    t.app.prisma.$transaction.mockImplementation(async cb => {
      events.push("begin"); const result = await transaction(cb); events.push("commit"); return result;
    });
    for (const [name, mock] of [["employee", t.employeeCreate], ["roles", t.employeeRoleCreateMany], ["audit", t.auditCreate]]) {
      const original = mock.getMockImplementation();
      mock.mockImplementation(async (...args) => { events.push(name); return original(...args); });
    }
    try {
      const r = await t.app.inject({ method: "POST", url: "/api/users", payload: { name: "合成账号", email: "boundary@example.test", roles: ["employee"], syncWecomDirectory: false } });
      expect(r.statusCode).toBe(200); expect(hash).toHaveBeenCalledOnce();
      expect(events).toEqual(["hash:start", "hash:done", "begin", "employee", "roles", "audit", "commit"]);
      const stored = t.employeeCreate.mock.calls[0][0].data;
      expect(stored.must_change_password).toBe(true);
      expect(await bcrypt.compare(r.json().data.oneTimePassword, stored.password_hash)).toBe(true);
      expect(t.auditCreate.mock.calls[0][0].data).toMatchObject({ action: "SYSTEM_USER_CREATED", actor_id: ACTOR_ID, target_id: USER_ID });
      expect(t.wecomSyncRunCreate).not.toHaveBeenCalled();
    } finally { hash.mockRestore(); await t.app.close(); }
  });

  it("does not enter a transaction or create an account if password hashing fails", async () => {
    const t = await buildApp();
    const hash = vi.spyOn(require("bcryptjs"), "hash").mockRejectedValue(new Error("synthetic hash failure"));
    try {
      const r = await t.app.inject({ method: "POST", url: "/api/users", payload: { name: "合成账号", email: "hash-failure@example.test", syncWecomDirectory: false } });
      expect(r.statusCode).toBe(500); expect(hash).toHaveBeenCalledOnce();
      expect(t.app.prisma.$transaction).not.toHaveBeenCalled();
      for (const mock of [t.employeeCreate, t.employeeRoleCreateMany, t.auditCreate, t.wecomSyncRunCreate]) expect(mock).not.toHaveBeenCalled();
    } finally { hash.mockRestore(); await t.app.close(); }
  });

  it.each(["roles", "audit", "commit"])("does not read completed roles or sync externally after a %s failure", async phase => {
    const t = await buildApp();
    const failure = new Error("synthetic transaction failure");
    if (phase === "roles") t.employeeRoleCreateMany.mockRejectedValue(failure);
    if (phase === "audit") t.auditCreate.mockRejectedValue(failure);
    if (phase === "commit") {
      const original = t.app.prisma.$transaction.getMockImplementation();
      t.app.prisma.$transaction.mockImplementation(async cb => { await original(cb); throw failure; });
    }
    try {
      const r = await t.app.inject({ method: "POST", url: "/api/users", payload: { name: "合成账号", email: "write-failure@example.test", roles: ["employee"], syncWecomDirectory: false } });
      expect(r.statusCode).toBe(500);
      expect(t.app.prisma.$transaction).toHaveBeenCalledOnce();
      expect(t.employeeCreate).toHaveBeenCalledOnce();
      expect(t.employeeRoleFindMany).not.toHaveBeenCalled();
      expect(t.wecomSyncRunCreate).not.toHaveBeenCalled();
      if (phase === "roles") expect(t.auditCreate).not.toHaveBeenCalled();
    } finally { await t.app.close(); }
  });
});