const validate = require("./validate.js");
import __config from '@/config/env';
import api from '@/utils/api.js';
import Decimal from 'decimal.js';

const formatTime = date => {
	const year = date.getFullYear();
	const month = date.getMonth() + 1;
	const day = date.getDate();
	const hour = date.getHours();
	const minute = date.getMinutes();
	const second = date.getSeconds();
	return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(
		':');
};
const formatNumber = n => {
	n = n.toString();
	return n[1] ? n : '0' + n;
};
//空值过滤器
const filterForm = form => {
	let obj = {};
	Object.keys(form).forEach(ele => {
		if (!validate.validatenull(form[ele])) {
			obj[ele] = form[ele];
		}
	});
	return obj;
};
//获取当前页面带参数的url
const getCurrentPageUrlWithArgs = val => {

	const pages = getCurrentPages();
	const currentPage = pages[pages.length - 1];
	const url = currentPage.route;
	const options = currentPage.options;
	let urlWithArgs = `/${url}?`;

	for (let key in options) {
		const value = options[key];
		urlWithArgs += `${key}=${value}&`;
	}

	urlWithArgs = urlWithArgs.substring(0, urlWithArgs.length - 1);
	return urlWithArgs;
}

/* 获取当前页面options参数对象 */
const getCurrentPageOptions = () => {
	const pages = getCurrentPages();
	const currentPage = pages[pages.length - 1];
	const url = currentPage.route;
	const options = currentPage.options;
	return options
}


//获取url中的参数
const getUrlParam = (path, name) => {
	var reg = new RegExp("(^|\\?|&)" + name + "=([^&]*)(\\s|&|$)", "i");
	if (reg.test(path))
		return unescape(RegExp.$2.replace(/\+/g, " "));
	return "";
}
//判断是否为微信浏览器中运行
const isWeiXinBrowser = () => {
	// #ifdef H5
	// window.navigator.userAgent属性包含了浏览器类型、版本、操作系统类型、浏览器引擎类型等信息，这个属性可以用来判断浏览器类型
	let ua = window.navigator.userAgent.toLowerCase()
	// 通过正则表达式匹配ua中是否含有MicroMessenger字符串
	if (ua.match(/MicroMessenger/i) == 'micromessenger') {
		return true
	} else {
		return false
	}
	// #endif
	return false
}
//判断是否是小程序
const isMiniPg = () => {
	let isMiniPg = false
	//#ifdef MP-WEIXIN
	isMiniPg = true
	//#endif
	return isMiniPg
}
//获取客服端代码
const getClientCode = () => {
	let code = {}
	//#ifdef MP-WEIXIN
	code = {
		key: 'MP-WEIXIN',
		value: '微信小程序'
	}
	//#endif
	//#ifdef H5
	//普通H5
	code = {
		key: 'H5',
		value: '普通H5'
	}
	if (isWeiXinBrowser()) {
		//微信公众号H5
		code = {
			key: 'H5-WX',
			value: '公众号H5'
		}
	}
	//#endif
	return code
}
//重置url中的参数
const resetPageUrl = (query) => {
	var ary = [];
	for (var p in query) {
		if (query.hasOwnProperty(p) && query[p]) {
			ary.push(encodeURIComponent(p) + '=' + encodeURIComponent(query[p]));
		}
	}
	if (ary.length > 0) {
		let url = "?" + ary.join('&');
		history.replaceState(history.state, null, url); //替换页面显示url
	}
}

const imgUrlToBase64 = (imageUrl) => {
	return new Promise((resolve, reject) => {
		try {
			uni.downloadFile({
				url: imageUrl + '?s=' + Math.random().toString(),
				success: res => {
					if (res.statusCode === 200) {
						// uni 如果是H5或者APP会自动转为base64返回
						resolve(res.tempFilePath);
					} else {
						reject(res.errMsg);
					}
				},
				fail(err) {
					reject(err);
				}
			});
		} catch (e) {
			console.log(e)
			resolve(imageUrl);
		}
	})
}

// 设置原生app的分享url为h5的地址url
const setAppPlusShareUrl = query => {
	const pages = getCurrentPages();
	const curPage = pages[pages.length - 1];
	const userInfo = uni.getStorageSync('wx_login_user_info')
	const userCode = userInfo ? userInfo.userCode : ''
	let component_appid = ""
	if (query && query.componentAppId) {
		component_appid = "&component_appid=" + query.componentAppId
	}
	let fullPath = curPage.$page.fullPath
	//判断是否有问号
	fullPath = fullPath.indexOf('?') != -1 ? fullPath + '&' : fullPath + '?'
	if (userCode) {
		return __config.h5HostUrl + fullPath + 'tenant_id=' + __config.tenantId + '&app_id=' + __config.wxAppId +
			'&sharer_user_code=' + userCode + component_appid;
	} else {
		return __config.h5HostUrl + fullPath + 'tenant_id=' + __config.tenantId + '&app_id=' + __config.wxAppId +
			component_appid
	}
};

// 设置原生app的分享url为h5的地址url（用于分销，默认首页地址）
const setAppPlusHomeShareUrl = query => {
	const userInfo = uni.getStorageSync('wx_login_user_info')
	const userCode = userInfo ? userInfo.userCode : ''
	let component_appid = ""
	if (query && query.componentAppId) {
		component_appid = "&component_appid=" + query.componentAppId
	}
	let fullPath = '/mp/views/home/index?'
	if (userCode) {
		return __config.h5HostUrl + fullPath + 'tenant_id=' + __config.tenantId + '&app_id=' + __config.wxAppId +
			'&sharer_user_code=' + userCode + component_appid;
	} else {
		return __config.h5HostUrl + fullPath + 'tenant_id=' + __config.tenantId + '&app_id=' + __config.wxAppId +
			component_appid
	}
};

// 设置h5的分享地址url
const setH5ShareUrl = val => {
	const userInfo = uni.getStorageSync('wx_login_user_info')
	const userCode = userInfo ? userInfo.userCode : ''
	let url = window.location.href
	// 如果没有 sharer_user_code 就添加，如果有就替换为自己的userCode
	if (userCode) {
		let index = url.indexOf('&sharer_user_code=')
		if (index == -1) {
			url = url + '&sharer_user_code=' + userCode;
		} else {
			let urlTemp = url.slice(0, index);
			url = urlTemp + '&sharer_user_code=' + userCode;
		}
	}
	return url
}

// 设置H5的分享url（用于分销，默认首页地址）
const setH5HomeShareUrl = val => {
	const userInfo = uni.getStorageSync('wx_login_user_info')
	const userCode = userInfo ? userInfo.userCode : ''
	// 如果没有 sharer_user_code 就添加
	let url = window.location.origin + window.location.search;
	if (userCode) {
		let index = url.indexOf('&sharer_user_code=')
		if (index == -1) {
			url = url + '&sharer_user_code=' + userCode;
		} else {
			let urlTemp = url.slice(0, index);
			url = urlTemp + '&sharer_user_code=' + userCode;
		}
	}
	return url
}
// 获取当前页面路由或 path
const getCurPage = pages => {
	let curPage = pages[pages.length - 1];
	return curPage.route
}
// 保存别人分享来的 userCode
const saveSharerUserCode = options => {
	if (options.scene) {
		//接受二维码中参数
		/**
		 * 这里需要特别注意：
		 * 由于腾讯限制了scenes的长度，导致传参的局限性，为尽可能的利用这有限的长度传参，
		 * 故我们定义了scenes的参数格式，当一个页面需要传多个参数时，我们用“&”符号分割开来，第2位固定放分享人的user_code，这样可以最大限度减少长度占用
		 * 第1位一般放ID，第2位固定放分享人的user_code，比如菜品页面scenes为：goodspuId+&+sharer_user_code
		 * 因为固定第2位放分享人的user_code，当有些页面无需传ID时，我们也需要用“&”拼一下，第一位随意用一个字符点位即可，比如页面scenes为：0+&+sharer_user_code
		 */
		let scenes = decodeURIComponent(options.scene).split('&');
		if (scenes[1]) {
			uni.setStorageSync('sharer_user_code', scenes[1]);
		}
	} else {
		if (options.sharer_user_code) {
			uni.setStorageSync('sharer_user_code', '');
			uni.setStorageSync('sharer_user_code', options.sharer_user_code);
		}
	}

}

// 如果有分享人则给data带上分享人的user_code
const dataAddSharerUserCode = data => {
	let sharer_user_code = uni.getStorageSync('sharer_user_code')
	if (sharer_user_code) {
		data = Object.assign({
			sharerUserCode: sharer_user_code
		}, data)
	}
	return data
}

//返回登录页面
const backLoginPage = data => {
	var pages = getCurrentPages(); // 获取页面栈
	var currPage = pages[pages.length - 1]; // 当前页面
	if (currPage) {
		let curParam = currPage.options
		// 拼接参数
		let reUrl = '/' + currPage.route
		if (curParam != null) {
			// 拼接参数
			let param = ''
			for (let key in curParam) {
				param += '&' + key + '=' + curParam[key]
			}
			param = param.substr(1)
			reUrl = reUrl + '?' + param
			reUrl = encodeURIComponent(reUrl)
		}
		uni.reLaunch({
			url: '/pages/login/index?reUrl=' + reUrl
		});
	}
}

/**
 * 拼接完整图片字符串 
 */
const spliceAssetsUrl = imgUrl => {
	let imgHostUrl = __config.imgHostUrl;
	if (!imgUrl)
		return imgHostUrl

	if (imgUrl.substr(0, 1) != "/") {
		imgUrl = `/${imgUrl}`
	}
	let allImgUrl = `${imgHostUrl}${imgUrl}`
	return allImgUrl;
}

/**
 * 拼接背景图片字符串 (url('xxxx/xxx.png'))
 */
const spliceBgImgUrl = imgUrl => {
	if (!imgUrl)
		return 'url()'
	let allImgUrl = spliceAssetsUrl(imgUrl)
	return 'url(' + allImgUrl + ')';
}


//解析用户对象格式
const parseUser = userData => {
	let memberAccount = userData
	if (memberAccount) {
		// 复制属性名字 accountId
		memberAccount.memberInfo.accountId = memberAccount.memberInfo.id
		if (memberAccount.memberInfo) {
			memberAccount.memberInfo['mobile'] = memberAccount['mobile']
			if (memberAccount.wxThirdUser) {
				memberAccount.memberInfo['openId'] = memberAccount.wxThirdUser['openId']
				memberAccount.memberInfo['uuid'] = memberAccount.wxThirdUser['uuid']
				memberAccount.memberInfo['unionId'] = memberAccount.wxThirdUser['unionId']
				memberAccount.memberInfo['channelCode'] = memberAccount.wxThirdUser['channelCode']
				memberAccount.memberInfo['blog'] = memberAccount.wxThirdUser['blog']
				memberAccount.memberInfo['clientId'] = memberAccount.wxThirdUser['clientId']
			}
		}
	} else {
		memberAccount = {}
		memberAccount['memberInfo'] = undefined
		console.error('[parseUser]用户登录信息memberAccount返回为null')
	}

	/* 删除无用的字段 */
	//delete memberAccount.memberInfo.id
	delete memberAccount.memberInfo.$_createBy
	delete memberAccount.memberInfo.$_createTime
	delete memberAccount.memberInfo.$_updateBy
	delete memberAccount.memberInfo.$_updateTime
	delete memberAccount.memberInfo.delFlag
	delete memberAccount.memberInfo.params
	delete memberAccount.memberInfo.searchValue
	delete memberAccount.memberInfo.memberAccount

	uni.setStorageSync(__config.loginWxUserInfoKey, memberAccount.memberInfo)
	/* 返回解析后的用户信息 */
	return memberAccount.memberInfo;
}


/**
 * 跳转页面
 * @param {Object} page
 */
const navigateToPage = function(page, success) {
	if (!page) {
		return
	}

	const pages = getCurrentPages();
	let curRoute = getCurPage(pages)
	console.info('[navigateToPage]_当前路由页面: ', curRoute)
	console.info('[navigateToPage]_将要跳转页面: ', page)

	if (page.substr(0, 1) == "/") {
		curRoute = `/${curRoute}`
	}

	if (curRoute == page) {
		console.log('[navigateToPage]_路由相同: 不进行跳转')
		return
	}
	uni.navigateTo({
		url: page,
		success: (res) => {
			if (success) {
				success(res)
			}
			uni.$emit('reloadSocket')
		}
	})
}

/**
 * 跳转页面
 * @param {Object} page
 */
const reLaunchToPage = function(page, success) {
	if (!page) {
		return
	}

	const pages = getCurrentPages();
	let curRoute = getCurPage(pages)
	console.info('[reLaunchToPage]_当前路由页面: ', curRoute)
	console.info('[reLaunchToPage]_将要跳转页面: ', page)

	if (page.substr(0, 1) == "/") {
		curRoute = `/${curRoute}`
	}

	// if (curRoute == page) {
	// 	console.log('[reLaunchToPage]_路由相同: 不进行跳转')
	// 	return
	// }
	uni.reLaunch({
		url: page,
		success: (res) => {
			if (success) {
				success(res)
			}
			uni.$emit('reloadSocket')
		}
	})
}

/**
 * 弹出普通提示窗
 * @param {Object} title
 */
const showToast = function(title) {
	if (!title) {
		return
	}
	uni.showToast({
		title: title,
	})
}




/**
 * 加载网络字体文件
 * @param {Object} family
 * @param {Object} source
 */
const loadFontFace = function(family, source) {
	uni.loadFontFace({
		family: family,
		source: `url("${spliceAssetsUrl(source)}")`,
		success: function(res) {
			console.log(`load font ${family} from ${spliceAssetsUrl(source)} success!`)
		},
		fail: function(err) {
			console.error(err)
		}
	})
}

/**
 * px 转换 rpx
 * @param {Object} px
 */
const pxTorpx = function(px) {
	let deviceWidth = uni.getSystemInfoSync().windowWidth; //获取设备屏幕宽度
	let rpx = (750 / deviceWidth) * Number(px)
	return Math.floor(rpx);
};

/**
 * rpx 转换 px
 * @param {Object} rpx
 */
const rpxTopx = function(rpx) {
	let deviceWidth = wx.getSystemInfoSync().windowWidth; //获取设备屏幕宽度
	let px = (deviceWidth / 750) * Number(rpx)
	return Math.floor(px);
};

/**
 * 处理优惠卷方法
 */
const couponProces = function(e,list){
	if(list.type == 1 || list.types == 1){
		// 满减卷
		console.log(list)
		console.log(e)
		let price = new Decimal(e).sub(new Decimal(list.reduceAmount)).toFixed(2, Decimal.ROUND_HALF_UP)
		let lists = {
			price: price < 0 ? 0 : price,
			reduceAmount: price < 0 ? e : list.reduceAmount
		}
		return lists
	}else if(list.type == 2){
		let lists = {
			price:  new Decimal(e).mul(new Decimal(list.discount).div(new Decimal(10))).toFixed(2, Decimal.ROUND_HALF_UP),
			reduceAmount:  new Decimal(e).sub(new Decimal(e).mul(new Decimal(list.discount).div(new Decimal(10))).toFixed(2, Decimal.ROUND_HALF_UP))
		}
		return lists
	}else{
		return false
	}
};

/**
 * 处理第二份半价方法
 */
const secondHalfPrice = function(e,shoppingCardList,spuIdsList){
	let price = new Decimal(e)
	let reduceAmount = new Decimal(0)
	console.log(price)
	for (var i = 0; i < shoppingCardList.length; i++) {
		if(spuIdsList.includes(shoppingCardList[i].spuId)){
			// 商品数量向下取整看有几份可第二份半价的
			let length = new Decimal(shoppingCardList[i].quantity).div(2).toFixed(0, Decimal.ROUND_DOWN)
			// 计算出总共优惠多少这个商品
			let prices = new Decimal(length).mul(new Decimal(shoppingCardList[i].goodsSku.salesPrice).div(2))
			reduceAmount = reduceAmount.add(prices)
		}
	}
	price = price.sub(reduceAmount.toFixed(2, Decimal.ROUND_HALF_UP))
	let lists = {
		price: price.toNumber(),
		reduceAmount: reduceAmount.toNumber().toFixed(2, Decimal.ROUND_HALF_UP)
	}
	console.log(lists)
	return lists
};

/**
 * 根据比例计算rpx值
 * @param {Object} rpxVal 比例为3时的值
 * @param {Object} offset 偏移量，支持负数
 */
const calcPixelRatio = function(rpxVal, offset = 0){
	
	let defaultPR = new Decimal(3).div(new Decimal(rpxVal)).toNumber();
	let devicePixelRatio = uni.$u.devicePixelRatio;
	
	if(devicePixelRatio == 3){
		return rpxVal
	}
	
	if(devicePixelRatio == 1 || Number(rpxVal) <= 0){
		return rpxVal + offset
	}else{
		let newRpxVal = new Decimal(devicePixelRatio).div(new Decimal(defaultPR)).toNumber()
		let newRpxValAndOffset = new Decimal(newRpxVal).add(new Decimal(offset)).toNumber();
		return newRpxValAndOffset
	}
};

const getUuid = function(){
    var s = [];
    var hexDigits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    for (var i = 0; i < 36; i++) {
        s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
    }
    s[14] = "4";  // bits 12-15 of the time_hi_and_version field to 0010
    s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1);  // bits 6-7 of the clock_seq_hi_and_reserved to 01
    s[8] = s[13] = s[18] = s[23] = "";
 
    var uuid = s.join("");
    return uuid;	
};

module.exports = {
	formatTime: formatTime,
	filterForm: filterForm,
	getCurrentPageUrlWithArgs: getCurrentPageUrlWithArgs,
	getUrlParam: getUrlParam,
	isWeiXinBrowser: isWeiXinBrowser,
	isMiniPg: isMiniPg,
	resetPageUrl: resetPageUrl,
	getClientCode: getClientCode,
	imgUrlToBase64: imgUrlToBase64,
	setAppPlusShareUrl: setAppPlusShareUrl,
	setH5ShareUrl: setH5ShareUrl,
	getCurPage: getCurPage,
	saveSharerUserCode: saveSharerUserCode,
	dataAddSharerUserCode: dataAddSharerUserCode,
	backLoginPage: backLoginPage,
	setAppPlusHomeShareUrl,
	setH5HomeShareUrl,
	spliceAssetsUrl,
	spliceBgImgUrl,
	parseUser,
	navigateToPage,
	reLaunchToPage,
	getCurrentPageOptions,
	showToast,
	loadFontFace,
	pxTorpx,
	rpxTopx,
	getUuid,
	couponProces,
	secondHalfPrice,
	calcPixelRatio
};