'use strict';
import axios 								from 'axios';
import { Loading }  						from 'element-ui';
import qs 									from 'qs';
import szjcomo 								from 'szjcomo-utils';
import { globalConfig } 					from '@/service/common/config';
import store 								from '@/store';
import router 								from '@/router';
import cache 								from '@/service/common/cache';
/**
 * [reqConf 全局通用配置]
 * @type {Object}
 */
const reqConf = {
	/**
	 * [maxContentLength `定义http内容中允许的最大内容长度]
	 * @type {[type]}
	 */
	maxContentLength:5 * 1024 * 1024,
	/**
	 * [timeout指定请求超时前的毫秒数。如果请求所用时间超过timeout，则请求将被中止请求。]
	 * @type {Number}
	 */
	timeout:20 * 1000,
	/**
	 * 除非url是绝对的，否则baseURL将加在url前面。可以方便地为axios实例设置baseURL以传递相对url到该实例的方法。
	 * @type {String}
	 */
	baseURL:process.env.NODE_ENV == 'development' ? '/apis' : globalConfig.app_domain,
	/**
	 * `transformResponse` allows changes to the response data to be made before it is passed to then/catch
	 * @author 	   szjcomo
	 * @createTime 2020-09-12
	 * @param      {[type]}   data [description]
	 * @return     {[type]}        [description]
	 */
	transformResponse:function(data) {
		try {
			return JSON.parse(data);
		} catch(err) {
			return data;
		}
	}
};
/**
 * [openLoading 打开加载框]
 * @author 	   szjcomo
 * @createTime 2020-09-12
 * @param      {Object}   options [description]
 * @return     {[type]}           [description]
 */
const openLoading = function(options = {}) {
	let defaults = {text:'加载中',background:'#000000cc'};
	return Loading.service(Object.assign(defaults,options));
}
/**
 * [closeLoading 关闭加载框]
 * @author 	   szjcomo
 * @createTime 2020-09-12
 * @param      {Object}   options [description]
 * @return     {[type]}           [description]
 */
const closeLoading = function(loadingInstance) {
	if(loadingInstance) loadingInstance.close();
}
/**
 * [getAxiosInstance 创建一个请求实例]
 * @author 	   szjcomo
 * @createTime 2020-09-12
 * @param      {Object}   options [description]
 * @return     {[type]}           [description]
 */
const getAxiosInstance = function(options = {}) {
	let instance =  axios.create(Object.assign(reqConf,options));
	instance.interceptors.request.use(async (config) => {
		return config;
	}, (error) => {return Promise.reject(error);});
	instance.interceptors.response.use((response)=> {
		if(response && response.data && response.data.result_code == 10001) {
			return Promise.reject(new Error(response.data.message));
		} else {
			return Promise.resolve(response.data);
		}
	}, (error) => {
		return Promise.reject(error);
	});
	return instance;
}
/**
 * [szjcomoAxios 自定义请求对象]
 * @type {Object}
 */
const szjcomoAxios = {
	/**
	 * [get 发送get请求]
	 * @author 	   szjcomo
	 * @createTime 2020-09-12
	 * @param      {[type]}   url             [description]
	 * @param      {Object}   params          [description]
	 * @param      {Object}   instanceOptions [description]
	 * @param      {Boolean}  loading         [description]
	 * @return     {[type]}                   [description]
	 */
	get:async function(url,params = {},instanceOptions = {},loading = true) {
		let loadingInstance,result;
		if(loading) loadingInstance = openLoading({text:'加载中'});
		try {
			let tmpUrl = url;
			if(params &&  Object.keys(params).length > 0) tmpUrl += ((tmpUrl.indexOf('?') > -1?'&':'?') + qs.stringify(params));
			result = await getAxiosInstance(instanceOptions).get(tmpUrl);
		} catch(err) {
			result = szjcomo.appResult(err.message,err.data,true,err.status);
		} finally {
			if(loadingInstance) closeLoading(loadingInstance);
			return result;
		}
	},
	/**
	 * [post 发送post请求]
	 * @author 	   szjcomo
	 * @createTime 2020-09-23
	 * @param      {[type]}   url             [description]
	 * @param      {Object}   params          [description]
	 * @param      {Object}   instanceOptions [description]
	 * @param      {Boolean}  loading         [description]
	 * @return     {[type]}                   [description]
	 */
	post:async function(url,params = {},instanceOptions = {},loading = true) {
		let loadingInstance,result;
		if(loading) loadingInstance = openLoading({text:'提交中'});
		try {
			result = await getAxiosInstance(instanceOptions).post(url,params);
		} catch(err) {
			result = szjcomo.appResult(err.message,err.data,true,err.status);
		} finally {
			if(loadingInstance) closeLoading(loadingInstance);
			return result;
		}
	},
	/**
	 * [put 发送put请求]
	 * @author    szjcomo
	 * @date   		2020-10-22
	 * @param  {[type]}     url             [description]
	 * @param  {Object}     params          [description]
	 * @param  {Object}     instanceOptions [description]
	 * @param  {Boolean}    loading         [description]
	 * @return {[type]}                     [description]
	 */
	put:async function(url,params = {},instanceOptions = {},loading = true){
		let loadingInstance,result;
		if(loading) loadingInstance = openLoading({text:'提交中'});
		try {
			result = await getAxiosInstance(instanceOptions).put(url,params);
		} catch(err) {
			result = szjcomo.appResult(err.message,err.data,true,err.status);
		} finally {
			if(loadingInstance) closeLoading(loadingInstance);
			return result;
		}
	},
	/**
	 * [delete 发送delete请求]
	 * @author    szjcomo
	 * @date   		2020-10-22
	 * @param  {[type]}     url             [description]
	 * @param  {Object}     params          [description]
	 * @param  {Object}     instanceOptions [description]
	 * @param  {Boolean}    loading         [description]
	 * @return {[type]}                     [description]
	 */
	delete:async function(url,params = {},instanceOptions = {},loading = true) {
		let loadingInstance,result;
		if(loading) loadingInstance = openLoading({text:'提交中'});
		try {
			let tmpUrl = url;
			if(params &&  Object.keys(params).length > 0) tmpUrl += ((tmpUrl.indexOf('?') > -1?'&':'?') + qs.stringify(params));
			result = await getAxiosInstance(instanceOptions).delete(tmpUrl);
		} catch(err) {
			result = szjcomo.appResult(err.message,err.data,true,err.status);
		} finally {
			if(loadingInstance) closeLoading(loadingInstance);
			return result;
		}
	},
	/**
	 * [upload 实现文件上传功能]
	 * @author 	   szjcomo
	 * @createTime 2020-10-06
	 * @param      {[type]}   url             [description]
	 * @param      {Object}   params          [description]
	 * @param      {Object}   instanceOptions [description]
	 * @param      {Boolean}  loading         [description]
	 * @return     {[type]}                   [description]
	 */
	upload:async function(url,params = {},filename = 'filename',instanceOptions = {},loading = true) {
		let loadingInstance,result;
		if(loading) loadingInstance = openLoading({text:'上传中'});
		try {
			let formData = new FormData();
			Object.keys(params).forEach(key => {
				if(key == filename) {
					formData.append(key,params[key],params[key].name);
				} else if(key != 'headers') {
					formData.append(key,params[key]);
				}
			})
			let headers = {'Content-Type': 'multipart/form-data'};
			if(params.headers) {
				Object.keys(params.headers).forEach(key => {
					headers[key] = params.headers[key];
				})
			}
			result = await getAxiosInstance(instanceOptions).request({
				method:'post',url:`${globalConfig.app_upload_domain}${url}`,data:formData,headers:headers
			});
		} catch(err) {
			result = szjcomo.appResult(err.message,err.data,true,err.status);
		} finally {
			if(loadingInstance) closeLoading(loadingInstance);
			return result;
		}
	}
};
export default szjcomoAxios;