import axios from "axios";
import { Response } from "~/types/Model";

export type ErrorCallback = (response: Response) => void;

let globalErrorCallback: ErrorCallback | null = null;

export const setGlobalErrorCallback = (callback: ErrorCallback) => {
	globalErrorCallback = callback;
};

axios.defaults.withCredentials = true;
axios.interceptors.response.use((axiosResp: any) => {
	if (!axiosResp.config.responseType) {
		// 服务端返回
		const serverResp = axiosResp.data as Response;
		if (serverResp.code < 40000) {
			// 200 或 300 HTTP 状态段视为成功
			return serverResp.data;
		} else {
			if (globalErrorCallback) {
				globalErrorCallback(serverResp);
			}
			// 由调用方处理
			return Promise.reject(serverResp.msg);
		}
	}
	return axiosResp.data;
}, (error: any) => {
	// 请求错误
	if (error) {
		if (error.response && error.response.status) {
			throw error;
		}
		if (error.request) {
			if (error.message.startsWith("timeout")) {
				throw new Error("time out");
			} else {
				throw new Error(error.message);
			}
		}
	}
	throw error;
});

export default {
	axios,
	setGlobalErrorCallback
};