import axios, { AxiosInstance } from "axios";
import { handle401 } from "./auth";
import { showToastError } from "./toast";

const codeMessage = {
  200: "The server successfully returned the requested data。",
  201: "New or modified data succeeded。",
  202: "A request has been queued in the background (asynchronous task)。",
  204: "Data deleted successfully。",
  400: "There is an error in the request sent, the server did not perform the operation of creating or modifying data。",
  401: "The user does not have permission (token, username, password is wrong) 。",
  403: "User is authorized, but access is prohibited。",
  404: "The request issued was for a non-existent record, the server did not operate。",
  406: "The requested format is not available。",
  410: "The requested resource is permanently deleted and will no longer be available。",
  422: "When creating an object, a validation error occurred。",
  500: "Server error, please check the server。",
  502: "Gateway error。",
  503: "Service unavailable, server temporarily overloaded or maintained。",
  504: "Gateway timeout。",
};

// Tạo instance axios với cấu hình cơ bản
const api: AxiosInstance = axios.create({
  baseURL: "http://192.168.30.102:81", // Thay bằng API thật của bạn
  timeout: 10000, // Timeout 10 giây
  headers: {
    "Content-Type": "application/json",
  },
});

// Interceptor cho request (thêm token nếu cần)
api.interceptors.request.use(
  (config) => {
    // Thêm auth token nếu có
    // const token = getTokenFromStorage();
    // if (token) {
    //   config.headers.Authorization = `Bearer ${token}`;
    // }
    return config;
  },
  (error) => {
    return Promise.reject(error);
  }
);

// Interceptor cho response (xử lý lỗi chung)
api.interceptors.response.use(
  (response) => {
    return response;
  },
  (error) => {
    // Xử lý lỗi chung, ví dụ: redirect login nếu 401
    const { status, statusText, data } = error.response;

    // Ưu tiên: codeMessage → backend message → statusText
    const errMsg =
      codeMessage[status as keyof typeof codeMessage] ||
      data?.message ||
      statusText ||
      "Unknown error";
    showToastError(errMsg);
    if (error.response?.status === 401) {
      handle401();
    }
    return Promise.reject(error);
  }
);

export default api;