import Vue from 'vue';
var that = new Vue();
let sha1 = require("./sha1.min.js");
let SparkMD5 = require("./SparkMD5.js"); // 签名加密js文件

function getsign(params) {
	let s_data = "";
	let keys = [];
	for (const key in params) {
		if (params.hasOwnProperty(key)) {
			const value = params[key];
			keys.push(key);
		}
	}
	let arr = [];
	keys.sort();
	for (let i = 0; i < keys.length; i++) {
		let k = keys[i];
		let v = params[k];
		arr.push(k + '=' + v);
	}
	s_data = arr.join('&');

	let sign = sha1(SparkMD5.hash(s_data) + 'Leadfyy@123');
	params.sign = sign;
	return params;
}

export default function request(options){
	let { url, data, method, showLoading } = options;
	if(typeof data === 'undefined'){
		data = {};
	}
	
	return new Promise((resolve, reject) => {
		// 绑定this
		// 获取当前请求来自哪个页面
		let pages = getCurrentPages();
		data.create_page = pages[pages.length - 1].route;
		// 当前请求时间戳
		if (!data.timestamp) {
			data.timestamp = Math.round(new Date().getTime() / 1000);
		}
		// 当前请求随机数
		if(!data.rand){
			data.rand = Math.round(Math.random() * 1000000);
		}
		// 当前请求来自的平台
		data.platform = 'wxmini';
		// #ifdef APP-PLUS
		data.platform = 'app'; // 来自app平台，其他平台写法类似
		// #endif
		// 当前小程序版本号
		// data.version = that.API.VERSION;
		// 获取设备唯一deviceId，如果没有，自动生成一个
		let sysInfo = uni.getSystemInfoSync();
		if(typeof sysInfo.deviceId == 'undefined'){
			let deviceId = uni.getStorageSync('deviceId');
			if(deviceId){
				sysInfo.deviceId = deviceId;
			}else{
				let date_time = String(new Date().getTime());
				let md5_deviceId = SparkMD5.hash(date_time);
				uni.setStorageSync('deviceId', md5_deviceId);
				sysInfo.deviceId = md5_deviceId;
			}
		}
		if (sysInfo) {
			data.device_info = JSON.stringify(sysInfo);
		}
		// 判断传入用户token和id
		let userInfo = uni.getStorageSync('userInfo') || {};
		if(userInfo && userInfo.id && !data.user_id){
			// data.user_id = userInfo.id; // todo userId 暂都传
			data.user_id = 1;
		}
		
		// 获取页面options参数
		let _mergeParam = that._mergeParam;
		for (let _keyVar in _mergeParam) {
			let _k = _keyVar
			if (data[_k]) {
				_k = '_' + _k;
			}
			data[_k] = _mergeParam[_keyVar];
		}
		// 生成sign
		getsign(data);
		console.log(url, data);
		
		let httpConfig = {
			header: {}
		}
		if(userInfo && userInfo.token){
			httpConfig.header.token = userInfo.token;
		}
		let httpData = method == 'get' ? {params: data, ...httpConfig} : data;
		
		// 发起请求
		uni.$u.http[method](url, httpData, httpConfig).then(res => {
			resolve(res);
		}).catch(err => {
			reject(err);
		})
	});
}