import axios from "axios";

const apiClient = axios.create({
  baseURL: (window as Window & typeof globalThis & { _IS_TEST_MODE?: boolean })
    ._IS_TEST_MODE
    ? "http://playwright-mock/api"
    : (import.meta.env.VITE_ADMIN_API_BASE ?? "/api"),
});

apiClient.interceptors.request.use((config) => {
  // TODO: IdP 중립 Auth 레이어 연동 시 세션 토큰을 주입한다.
  const sessionToken = window.localStorage.getItem("admin_session");
  if (sessionToken) {
    config.headers.Authorization = `Bearer ${sessionToken}`;
  }

  // TODO: 테넌트 선택 값을 보관하고 헤더로 전달한다.
  const tenantId = window.localStorage.getItem("admin_tenant");
  if (tenantId) {
    config.headers["X-Tenant-ID"] = tenantId;
  }

  // [Development Only] Inject Mock Role from RoleSwitcher
  const mockRole = window.localStorage.getItem("X-Mock-Role");
  if (mockRole) {
    config.headers["X-Test-Role"] = mockRole;
  }

  return config;
});

apiClient.interceptors.response.use(
  (response) => response,
  (error) => {
    if (error.response?.status === 401) {
      window.localStorage.removeItem("admin_session");
      window.location.href = "/login";
    }
    return Promise.reject(error);
  },
);

export default apiClient;