import Vue from 'vue';
import axios from 'axios'
import {Notification,MessageBox,Message,} from 'element-ui'
import store from '@/store'
import {getToken} from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import {tansParams,blobValidate} from "@/utils/ruoyi";
import cache from '@/plugins/cache'
import {saveAs} from 'file-saver'
// 是否显示重新登录
export let isRelogin = {show: false};
axios.defaults.headers['Content-Type'] = 'application/json;charset=utf-8'
// 创建axios实例
const service = axios.create({
	// axios中请求配置有baseURL选项，表示请求URL公共部分
	baseURL: process.env.VUE_APP_BASE_API,
	// 超时
	timeout: 2000000
})

// request拦截器
service.interceptors.request.use(config => {
	Vue.prototype.$layer.loading({content:'请稍等!'});
	// 是否需要设置 token
	const isToken = (config.headers || {}).isToken === false
	// 是否需要防止数据重复提交
	const isRepeatSubmit = (config.headers || {}).repeatSubmit === false
	if (getToken() && !isToken) {
		config.headers['Authorization'] = 'Bearer ' + getToken() // 让每个请求携带自定义token 请根据实际情况自行修改
	}
	// get请求映射params参数
	if (config.method === 'get' && config.params) {
		let url = config.url + '?' + tansParams(config.params);
		url = url.slice(0, -1);
		config.params = {};
		config.url = url;
	}
	if (!isRepeatSubmit && (config.method === 'post' || config.method === 'put')) {
		const requestObj = {
			url: config.url,
			data: typeof config.data === 'object' ? JSON.stringify(config.data) : config.data,
			time: new Date().getTime()
		}
		const sessionObj = cache.session.getJSON('sessionObj')
		if (sessionObj === undefined || sessionObj === null || sessionObj === '') {
			cache.session.setJSON('sessionObj', requestObj)
		} else {
			cache.session.setJSON('sessionObj', requestObj)
		}
	}
	return config
}, error => {
	console.log(error)
	Promise.reject(error)
})

// 响应拦截器
service.interceptors.response.use(res => {
		setTimeout(() => {
			Vue.prototype.$layer.closeAll('loading');
		}, 500);
		// 未设置状态码则默认成功状态
		const code = res.data.code || 200;
		// 获取错误信息
		const msg = errorCode[code] || res.data.msg || errorCode['default']
		// 二进制数据则直接返回
		if (res.request.responseType === 'blob' || res.request.responseType === 'arraybuffer') {
			return res.data
		}
		if (code === 401) {
			if (!isRelogin.show) {
				isRelogin.show = true;
				MessageBox.confirm('登录状态已过期，请重新登录', '系统提示', {
					confirmButtonText: '重新登录',
					cancelButtonText: '取消',
					type: 'warning'
				}).then(() => {
					isRelogin.show = false;
					store.dispatch('LogOut').then(() => {
//						location.href = '/admin/index';
						location.href = '/index';
					})
				}).catch(() => {
					isRelogin.show = false;
				});
			}
			return Promise.reject('无效的会话，或者会话已过期，请重新登录。')
		} else if (code === 500) {
			Message({
				message: msg,
				type: 'error'
			})
			return Promise.reject(new Error(msg))
		} else if (code !== 200) {
			Notification.error({
				title: '错误',
				message: msg
			})
			return Promise.reject('error')
		} else {
			return res.data
		}
	},
	error => {
		console.log('err' + error)
		setTimeout(() => {
			Vue.prototype.$layer.closeAll('loading');
		}, 500);
		let {message} = error;
		if (message == "Network Error") {
			message = "后端接口连接异常";
		} else if (message.includes("timeout")) {
			message = "系统接口请求超时";
		} else if (message.includes("Request failed with status code")) {
			message = "系统接口" + message.substr(message.length - 3) + "异常";
		}
		Message({message: message,type: 'error',duration: 5 * 1000})
		return Promise.reject(error)
	}
)

// 通用下载方法
export function download(url, params, filename, config) {
	Notification.success({
		title: '提示',
		message: '开始下载...'
	})
	return service.post(url, params, {
		transformRequest: [(params) => {
			return tansParams(params)
		}],
		headers: {
			'Content-Type': 'application/x-www-form-urlencoded'
		},
		responseType: 'blob',
		...config
	}).then(async (data) => {
		const isLogin = await blobValidate(data);
		if (isLogin) {
			const blob = new Blob([data])
			saveAs(blob, filename)
		} else {
			const resText = await data.text();
			const rspObj = JSON.parse(resText);
			const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode['default']
			Message.error(errMsg);
		}
	}).catch((r) => {
		console.error(r)
		Message.error('下载文件出现错误，请联系管理员！')
	})
}
// 通用下载方法
export function fileDownload(url,fileName) {
	Notification.success({
		title: '提示',
		message: '开始下载...'
	})
	axios({
		url: url,
		method: 'GET',
		responseType: 'arraybuffer',
		onDownloadProgress: progressEvent => {
			const percentCompleted = Math.round((progressEvent.loaded * 100) / progressEvent.total);
			console.log(percentCompleted); // 可以将进度显示在控制台或其他位置
		}
	}).then(response => {
		const blob = new Blob([response.data]);
		const link = document.createElement('a');
		link.href = URL.createObjectURL(blob);
		link.download =fileName;
		link.click();
		URL.revokeObjectURL(link.href);
	});
}
export default service