/**
 * http转换为https
 */
const toHttps = (url)=>{
	if(url.indexOf('http')>-1 && url.indexOf('https') == -1){
		url = url.replace('http', 'https');
	}
	return url;
}

/**
 *	@param {
		jump_type   		1.跳转H5 2.跳转新小程序 3.图片 4.跳转内部页面
		jump_config   		string | stringify(object)
		@param 其他参数		如：id,nav
	}
 * 注：jump_type，接口3和4有冲突所以写了兼容
 * 注：图片跳转逻辑空缺
 */
const jump = ({jump_type, jump_config, ...params} = {})=>{
	console.log(params);
	return new Promise((resolve, reject)=>{
		if(!jump_type) reject(false);
		jump_config = jump_config == undefined ? "" : jump_config;
		if(jump_type == 1){
			const nav =	Reflect.has(params, "nav") ?  `&nav=${params.nav}` : ``;
			const url = `/pages/webview/webview?url=${jump_config+nav}`;
			uni.navigateTo({
				url: url,
				success: () => {
					resolve(true)
				},
				fail: _ => {
					uni.reLaunch({
						url: url,
						fail:(err)=>{
							reject(err)
						}
					})
				}
			});
		}else if(jump_type == 2){
			const {appid, path} = JSON.parse(jump_config);
			wx.navigateToMiniProgram({
				appId: `${appid}`,
				path: `${path}`,
				extraData: {
					foo: 'bar'
				},
				// envVersion: 'develop', //开发版develop 开发版 trial   体验版 release 正式版 
				success:() => {
					resolve(true)
				},
				fail:(err) => {
					reject(err)
				}
			})
		}else if(jump_type == 3){
			if(jump_config.substr(0, 7) == '/pages/'){
				jumpInner(jump_config, params)
				.then(_=>{
					resolve(true)
				})
				.catch(err=>{
					reject(err)
				})
			}else{
				//图片跳转
				console.log("图片跳转逻辑空缺")
			}
		}else if(jump_type == 4){
			jumpInner(jump_config, params)
			.then(_=>{
				resolve(true)
			})
			.catch(err=>{
				reject(err)
			})
		}else{
			reject('unkown error')
		}
	})
}
/**
 * jumpy依赖函数
 */
const jumpInner = (url, params)=>{
	const tabbarPageList = [
		'pages/index/index',
		'pages/map/map',
		'pages/msg/msg',
		'pages/my/my'
	]
	let paramsText = ``;
	for(let [k, v] of Object.entries(params)){
		paramsText +=`${k}=${v}&`
	}
	if(paramsText.length>0){
		paramsText = paramsText.slice(0,paramsText.length-1);
		url = url.indexOf("?") > -1 ? `${url}&${paramsText}` : `${url}?${paramsText}`;
	}
	let func = uni.switchTab;
	const pages = getCurrentPages();
	if(pages.length>0){
		const {route} = pages[pages.length - 1];
		tabbarPageList.includes(route)
		func = tabbarPageList.includes(route) ? uni.reLaunch : uni.switchTab;
	}
	func = uni.reLaunch;
	console.log(url, '跳转完整地址');
	return new Promise((resolve,reject)=>{
		uni.navigateTo({
			url: url,
			success:()=>{
				resolve(true)
			},
			fail: _=>{
				func({
					url: url,
					success:()=>{
						resolve(true)
					},
					fail:(err)=>{
						reject(err)
					}
				})
			}
		})
	})
}
/**
 * 跳转加入会员小程序
 */
const jumpJoinVip = () => {
	return new Promise((resolve, reject)=>{
		wx.navigateToMiniProgram({
			appId: 'wx255b58f0992b3c53', //appid
			path: 'newUIMain/enrollment/enrollment', //path
			extraData: { //参数
				foo: 'bar'
			},
			// envVersion: 'develop', //开发版develop 开发版 trial   体验版 release 正式版 
			success(res) {
				resolve(res)
				// 打开成功
			},
			fail(e) {
				reject(e)
			}
		})
	})
}

/**
 * 求数组差集
 * @param {Object} arr1
 * @param {Object} arr2
 */
const arrayDiff = function(arr1, arr2) {
    var set1 = new Set(arr1);
    var set2 = new Set(arr2);
 
    var subset = [];
 
    for (let item of set1) {
        if (!set2.has(item)) {
            subset.push(item);
        }
    }
 
    return subset;
}

/**
 * 测试两个地理位置间得距离
 */
const calcDistance = (lat1, lng1, lat2, lng2) => {
	let radLat1 = lat1 * Math.PI / 180.0;
	let radLat2 = lat2 * Math.PI / 180.0;
	let a = radLat1 - radLat2;
	let b = lng1 * Math.PI / 180.0 - lng2 * Math.PI / 180.0;
	let s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + 
	Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2)));
	s = s * 6378.137;
	s = Math.round(s * 10000) / 10000;
	return s;
}

export default {
	toHttps,
	jump,
	jumpJoinVip,
	arrayDiff,
	calcDistance
}