const Fastify = require("fastify");

const exportsRoutes = require("../../../src/routes/exports");
const { AppError } = require("../../../src/utils/AppError");

const DEPARTMENT_ID = "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa";

async function buildApp(actor) {
  const app = Fastify();
  const findMany = vi.fn().mockResolvedValue([
    {
      id: "11111111-1111-4111-8111-111111111111",
      employee_no: "E001",
      name: "Alice",
      phone: "13800000000",
      email: "alice@example.com",
      status: "active",
      title: "经理",
      hire_date: new Date("2026-01-10T00:00:00.000Z"),
      created_at: new Date("2026-03-28T10:00:00.000Z"),
      department: { name: "行政部" },
    },
  ]);
  const count = vi.fn().mockResolvedValue(1);
  const auditCreate = vi.fn().mockResolvedValue({});

  app.decorate("authenticate", async (request) => {
    request.employee = actor;
  });
  app.decorate("requirePermission", (permissionCode) => async (request) => {
    request.employee = actor;
    const permissionCodes = actor.permissionCodes ?? [];
    if (!permissionCodes.includes("*") && !permissionCodes.includes(permissionCode)) {
      throw new AppError({ code: "PERM_001", message: "无权限", statusCode: 403 });
    }
  });
  app.decorate("hasPermission", (employee, permissionCode) => {
    const permissionCodes = employee.permissionCodes ?? [];
    return permissionCodes.includes("*") || permissionCodes.includes(permissionCode);
  });
  app.decorate("prisma", {
    employee: {
      findMany,
      count,
    },
    auditLog: {
      create: auditCreate,
    },
  });

  app.setErrorHandler((error, request, reply) => {
    if (error instanceof AppError) {
      return reply.status(error.statusCode).send({
        error: { code: error.code, message: error.message, ...(error.details ? { details: error.details } : {}) },
      });
    }
    return reply.status(500).send({ error: { code: "SYS_001" } });
  });

  await app.register(exportsRoutes, { prefix: "/api" });
  return { app, findMany, count, auditCreate };
}

describe("employee exports route", () => {
  it("exports filtered employees for system.users", async () => {
    const { app, findMany, count, auditCreate } = await buildApp({
      id: "actor-1",
      roleCodes: ["administration"],
      permissionCodes: ["system.users"],
    });

    const response = await app.inject({
      method: "GET",
      url: `/api/exports/employees?format=csv&status=active&departmentId=${DEPARTMENT_ID}&q=alice&title=%E7%BB%8F%E7%90%86&managerId=bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb&hireDateFrom=2026-01-01&hireDateTo=2026-01-31&employmentStatus=active`,
    });

    expect(response.statusCode).toBe(200);
    expect(response.headers["content-type"]).toContain("text/csv");
    expect(response.headers["content-disposition"]).toContain("employees-");
    expect(findMany).toHaveBeenCalledWith(
      expect.objectContaining({
        where: expect.objectContaining({
          status: "active",
          department_id: DEPARTMENT_ID,
          direct_manager_id: "bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
          employment_status: "active",
          hire_date: expect.objectContaining({
            gte: new Date("2026-01-01T00:00:00.000Z"),
            lte: new Date("2026-01-31T23:59:59.999Z"),
          }),
          AND: expect.arrayContaining([
            expect.objectContaining({
              OR: expect.arrayContaining([
                expect.objectContaining({ name: expect.any(Object) }),
                expect.objectContaining({ employee_no: expect.any(Object) }),
              ]),
            }),
            expect.objectContaining({
              title: expect.objectContaining({ contains: "经理" }),
            }),
          ]),
        }),
      }),
    );
    expect(count).toHaveBeenCalledWith({
      where: expect.objectContaining({
        status: "active",
        department_id: DEPARTMENT_ID,
        direct_manager_id: "bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
      }),
    });
    expect(auditCreate).toHaveBeenCalledWith(
      expect.objectContaining({
        data: expect.objectContaining({
          action: "EXPORT_EMPLOYEES",
          extra: expect.objectContaining({
            title: "经理",
            managerId: "bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
            hireDateFrom: "2026-01-01",
            hireDateTo: "2026-01-31",
            employmentStatus: "active",
          }),
        }),
      }),
    );

    await app.close();
  });

  it("rejects non system.users access", async () => {
    const { app } = await buildApp({
      id: "actor-2",
      roleCodes: ["manager"],
      permissionCodes: ["report.dashboard.view"],
    });

    const response = await app.inject({
      method: "GET",
      url: "/api/exports/employees?format=csv",
    });

    expect(response.statusCode).toBe(403);

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


describe("employee export calendar filters", () => {
  const actor = { id: "synthetic-manager", permissionCodes: ["system.users"] };
  it.each(["csv", "xlsx"].flatMap((format) => ["hireDateFrom", "hireDateTo"].flatMap((field) => ["2026-02-29", "2026-04-31", "2026-13-01", ""].map((date) => [format, field, date]))))("rejects %s %s=%s before reads or export audit", async (format, field, date) => {
    const { app, findMany, count, auditCreate } = await buildApp(actor);
    try {
      const response = await app.inject({ method: "GET", url: `/api/exports/employees?format=${format}&${field}=${date}` });
      expect(response.statusCode).toBe(400);
      expect(response.json().error).toMatchObject({ code: "VALID_001", details: { reasonCode: "employee_directory.query_invalid", formErrors: [], fieldErrors: { [field]: expect.arrayContaining(["invalid_calendar_date"]) } } });
      for (const fn of [findMany, count, auditCreate]) expect(fn).not.toHaveBeenCalled();
      expect(response.headers["content-disposition"]).toBeUndefined();
    } finally { await app.close(); }
  });
  it.each(["csv", "xlsx"])("preserves valid %s UTC bounds", async (format) => {
    const { app, findMany, count } = await buildApp(actor);
    try {
      const response = await app.inject({ method: "GET", url: `/api/exports/employees?format=${format}&hireDateFrom=2024-02-29&hireDateTo=2024-04-30` });
      expect(response.statusCode).toBe(200);
      for (const fn of [findMany, count]) expect(fn.mock.calls[0][0].where.hire_date).toEqual({ gte: new Date("2024-02-29T00:00:00.000Z"), lte: new Date("2024-04-30T23:59:59.999Z") });
    } finally { await app.close(); }
  });
  it("preserves omitted filters and reversed-range rejection", async () => {
    const { app, findMany, count, auditCreate } = await buildApp(actor);
    try {
      const omitted = await app.inject({ method: "GET", url: "/api/exports/employees" });
      expect(omitted.statusCode).toBe(200);
      expect(count.mock.calls[0][0].where).not.toHaveProperty("hire_date");
      for (const fn of [findMany, count, auditCreate]) fn.mockClear();
      const reversed = await app.inject({ method: "GET", url: "/api/exports/employees?hireDateFrom=2024-05-01&hireDateTo=2024-04-30" });
      expect(reversed.statusCode).toBe(400);
      expect(reversed.json().error.details).toEqual({ reasonCode: "employee_directory.hire_date_range_invalid", hireDateTo: "must_be_after_or_equal_hireDateFrom" });
      for (const fn of [findMany, count, auditCreate]) expect(fn).not.toHaveBeenCalled();
    } finally { await app.close(); }
  });
});


it("explains invalid employee export format before reads/audit", async () => {
  const { app, findMany, count, auditCreate } = await buildApp({ id: "synthetic-actor", permissionCodes: ["system.users"] });
  try {
    const response = await app.inject({ method: "GET", url: "/api/exports/employees?format=invalid" });
    expect(response.statusCode).toBe(400);
    expect(response.json().error.details).toMatchObject({ reasonCode: "employee_directory.query_invalid", fieldErrors: { format: expect.any(Array) } });
    for (const fn of [findMany, count, auditCreate]) expect(fn).not.toHaveBeenCalled();
  } finally { await app.close(); }
});