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// pages/info/groupInfo/index.js
import commonApi from "../../../utils/https/common";
let timer = null,app = getApp(),timer2=null;
import util from "../../../utils/util"
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import QRCode from '../../../utils/weapp-qrcode.js'
let device = wx.getSystemInfoSync();
const ratio = device.screenWidth / 750;
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Page({
/**
* 页面的初始数据
*/
data: {
info:null,
list:[],
hot:[],
id:null,
isFollow:true,
showRuleFlag:false,
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showShareFlag:false,
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isOn:false,
myIngList:{}
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
this.setData({
id:options.id
})
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// 获取推荐列表
commonApi.user_post('activity.groups/get_recommend?id='+options.id,{
id:options.id
}).then(res=>{
this.setData({
hot:res.data.data
})
})
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commonApi.user_post('activity.groups/detail?id='+options.id+'&team_id='+options.team_id,{
id:options.id,
team_id:options.team_id
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}).then(res=>{
this.setData({
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info:res.data.detail
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})
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commonApi.user_post('activity.groups/is_join?id='+options.id,{
id:options.id,
}).then(r=>{
if(r.data.length>0 && r.data[0].status==1){
// 已经参与这个团购
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this.setData({
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isOn:true,
myIngList:res.data.self_team
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})
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this.setTime();
this.drawImg()
}
else {
this.setData({
isOn:false
})
commonApi.user_post("activity.groups/get_teams?limit=100&id="+options.id,{
id:options.id,
limit:10
}).then(res=>{
this.setData({
list:res.data.data
})
this.setListTime();
})
}
})
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})
},
// 我的团购结束倒计时
setTime:function(){
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let myIngList = this.data.myIngList;
if(myIngList.isOver || !myIngList.team_list || !myIngList.team_list[0]){
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if(timer2){
clearTimeout(timer2);
timer2 = null;
}
return;
}
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let time = myIngList.team_list[0].over_time,overTime = new Date(time.replace(/-/g,'/')).getTime(),now = new Date().getTime();
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if(overTime<=now){
myIngList.isOver=true;
}
else {
let t = (overTime - now)/1000;
let h = Math.floor(t/(60*60));
t = t - h * 60*60;
let m = Math.floor(t/60),s=Math.floor(t-m*60);
if(h<10) {
h="0"+h;
}
if(m<10) {
m="0"+m;
}
if(s<10) {
s="0"+s;
}
myIngList.h=h;
myIngList.m=m;
myIngList.s=s;
}
this.setData({
myIngList:myIngList
})
timer2 = setTimeout(()=>{
this.setTime()
},1000)
},
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// 去详情
gotoInfo(){
util.gotoDetail({
type:this.data.info.type,
id:this.data.info.goods_id,
scene_id:this.data.info.scene_id
})
},
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// 列表倒计时
setListTime:function(){
let list = this.data.list,now = new Date();
list.map(item=>{
let t = item.over_time;
t = new Date(t.replace(/-/g,'/')).getTime() - now;
if(t<=0) {
item.isEnd = true;
}
else {
let h = Math.floor(t / 3600000),m = Math.floor((t - h * 3600000)/60000),s = Math.floor((t - h * 3600000 - m * 60000)/1000);
item.h = h<10?('0'+h):h;
item.m = m<10?('0'+m):m;
item.s = s<10?('0'+s):s;
}
})
this.setData({
list:list
})
if(timer){
clearTimeout(timer);
}
timer = setTimeout(()=>{
this.setListTime()
},1000)
},
// 修改当前详情页id
gotoDetail:function(e){
clearTimeout(timer);
timer = null;
wx.redirectTo({
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url: '/pages/group/info/index?id='+e.currentTarget.dataset.id
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})
},
// 发起团购
startGroup:function(){
util.goKjOrder(this.data.info).then(product=>{
product.map(item=>{
item.productNum = this.data.info.purchase_quantity;
item.sku.event_price = this.data.info.event_price;
item.maxNum = this.data.info.purchase_quantity;
})
app.globalData.gp_id = this.data.info.id;
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console.log(this.data.info)
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if(this.data.info.type=='post'){
app.globalData.postProduct = product;
wx.navigateTo({
url: '/pages/order/postOrder/index',
})
}
else if(this.data.info.type=='ticket' || this.data.info.type=='scene'){
app.globalData.product = product[0];
wx.navigateTo({
url: '/pages/order/scene/index',
})
}
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else if(this.data.info.type=="venue"){
app.globalData.product = product[0];
wx.navigateTo({
url: '/pages/order/scene/index?type=museum',
})
}
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})
},
// 加入拼团
join:function(e){
let item = e.currentTarget.dataset.item;
util.goKjOrder(this.data.info).then(product=>{
product.map(item=>{
item.productNum = this.data.info.purchase_quantity;
item.sku.event_price = this.data.info.event_price;
item.maxNum = this.data.info.purchase_quantity;
})
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app.globalData.gp_id = this.data.info.id;
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app.globalData.team_id = item.team_id;
if(this.data.info.type=='post'){
app.globalData.postProduct = product;
wx.navigateTo({
url: '/pages/order/postOrder/index',
})
}
else if(this.data.info.type=='ticket' || this.data.info.type=='scene'){
app.globalData.product = product[0];
wx.navigateTo({
url: '/pages/order/scene/index',
})
}
})
},
// 原价购买
goBuy:function(){
this.goOrder(null,1);
},
// 去下单
goOrder:function(groupId){
commonApi._get('productfront/getProductInfo',{
productId:this.data.info.productDetail.productId
}).then(res=>{
if(!res.data){
wx.showToast({
title:"该产品不存在或已下架",
icon:'none'
})
return;
}
let skuIndex = res.data.skuInfo.findIndex(item=>item.id==this.data.info.productDetail.skuId);
if(skuIndex==-1) {
wx.showToast({
title:"该产品规格不存在",
icon:'none'
})
return;
}
let sku = res.data.skuInfo[skuIndex];
app.globalData.shoppingCart=[{
baseInfo:res.data.baseInfo,
modelInfo:sku.modelInfo,
skuInfo:sku,
productNum:1,
purchaseQuantity:this.data.info.productDetail.purchaseQuantity
}];
app.globalData.groupId = groupId;
app.globalData.discounts = 0;
wx.navigateTo({
url: '../../order/index',
})
})
},
// 显示或者隐藏规则
showRule:function(){
this.setData({
showRuleFlag:!this.data.showRuleFlag
})
},
// 前往列表页 如果是从列表来的直接返回 防止嵌套
backList:function(){
let page = getCurrentPages();
if(page.length>=2 && page[page.length-2].route.indexOf('pages/group/index')!=-1){
wx.navigateBack()
}
else {
wx.navigateTo({
url: '/pages/group/index'
})
}
},
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// 分享
share:function(){
if(!this.data.shareImg){
wx.showToast({
title: '图片生成中,稍后再试',
icon:'none'
})
return;
}
this.setData({
showShareFlag:!this.data.showShareFlag
})
},
// 保存
save(){
let url = this.data.shareImg,that = this;
wx.authorize({
/* 这个就是保存相册的 */
scope: 'scope.writePhotosAlbum',
success() {
wx.saveImageToPhotosAlbum({
filePath:url,
success(res) {
wx.showToast({
title: '保存成功',
icon:"success"
})
that.setData({
showShareFlag:!this.data.showShareFlag
})
},
fail(res){
wx.showToast({
title: '保存失败',
icon:'none'
})
}
})
},
complete(res) {
console.log(res);
/* 这里判断一下如果没有授权重新打开设置选项 */
wx.getSetting({
success(res) {
if (!res.authSetting['scope.writePhotosAlbum']) {
/* 打开设置的方法 */
// opensit();
wx.showToast({
title: '请打开权限后再试',
icon:'none'
})
}
}
});
}
});
},
// 绘制海报
drawImg:function(){
if(!this.data.myIngList || !this.data.myIngList.team_list || !this.data.myIngList.team_list[0]){
return;
}
var that = this,userinfo = wx.getStorageSync('jstrip_userInfo');
const ctx = wx.createCanvasContext('imageCanvas');
// const device = wx.getSystemInfoSync();
// const ratio = device.screenWidth / 750;
// 先获取到图片信息
let promise2 = new Promise(function(resolve,reject){
wx.getImageInfo({
src:that.data.info.headimg,
success:function(res){
resolve(res);
},
fail:function(res){
reject(res);
}
})
})
let promise3 = new Promise(function(resolve,reject){
let userid = wx.getStorageSync('jstrip_userid')
new QRCode('myQrcode',{
text: 'https://m.cloud.sz-trip.com/GroupDetailFriends?id='+that.data.info.id+'&sharedUserId='+userid+'&channel=-1&team_id='+that.data.myIngList.team_list[0].team_id,
width: 500,
height: 500,
padding: 12, // 生成二维码四周自动留边宽度,不传入默认为0
correctLevel: QRCode.CorrectLevel.L, // 二维码可辨识度
callback: (res) => {
resolve(res);
}
})
})
//成功得到图片信息后,开始绘图
Promise.all([promise2,promise3]).then(imgs=>{
ctx.save();
ctx.beginPath(); //开始绘制
that.handleBorderRect(ctx,0,0,551 * ratio,407 * ratio,25 * ratio,'#ccc')
ctx.clip();//画好了圆 剪切 原始画布中剪切任意形状和尺寸。一旦剪切了某个区域,则所有之后的绘图都会被限制在被剪切的区域内 这也是我们要save上下文的原因
ctx.drawImage(imgs[0].path, 0, 0,551 * ratio,407 * ratio);
console.log(407 * ratio)
ctx.restore();
ctx.save();
that.handleBorderRect2(ctx,0,407 * ratio,551 * ratio,236*ratio,25 * ratio,'#fff')
ctx.restore();
// 绘制二维码
ctx.drawImage(imgs[1].path, 373 * ratio, 495 * ratio,137 * ratio, 137 * ratio);
// 开始文字绘制
ctx.setFillStyle("#000");
ctx.setFontSize(30 * ratio); //字大小
ctx.setTextAlign('left'); //是否居中显示,参考点画布中线
that.drawText(ctx,that.data.info.title+that.data.info.sku_name, 25*ratio, 450*ratio,480 * ratio,ratio);
// 售价
ctx.setFillStyle("#D62828");
ctx.setFontSize(40 * ratio); //字大小
ctx.setTextAlign('left'); //是否居中显示,参考点画布中线
let price = "¥"+(that.data.info.event_price/100);
let width = ctx.measureText(price).width;
ctx.fillText(price, 25*ratio, 620*ratio);
// 副标题
ctx.setFillStyle("#999999");
ctx.setFontSize(28 * ratio); //字大小
ctx.setTextAlign('left'); //是否居中显示,参考点画布中线
let subtitle = that.data.info.gp_num+'人团';
ctx.fillText(subtitle, 25*ratio, 540*ratio);
// ctx.draw();
// 划线价
ctx.setFillStyle("#999999");
ctx.setFontSize(32 * ratio); //字大小
ctx.setTextAlign('left'); //是否居中显示,参考点画布中线
let market_price = "¥"+(that.data.info.price/100)
ctx.fillText(market_price, 40*ratio + width, 620*ratio);
let market_price_width = ctx.measureText(market_price).width;
// 划线
ctx.beginPath()
ctx.setLineWidth(1)
ctx.moveTo(40*ratio + width, 608*ratio)
ctx.lineTo(45*ratio + width + market_price_width, 608*ratio)
ctx.stroke();
// 长按识别二维码
// ctx.setFillStyle("#666");
// ctx.setFontSize(22 * ratio); //字大小
// ctx.setTextAlign('left'); //是否居中显示,参考点画布中线
// ctx.fillText("长按识别二维码", 404*ratio, 710*ratio);
// 长按图片转发或保存
// ctx.setFillStyle("#000");
// ctx.setFontSize(24 * ratio); //字大小
// ctx.setTextAlign('left'); //是否居中显示,参考点画布中线
// ctx.fillText("长按图片保存到本地",(592*ratio - ctx.measureText("长按图片保存到本地").width)/2, 740*ratio);
ctx.draw();
// 转为图片
setTimeout(()=>{
wx.canvasToTempFilePath({
x: 0,
y: 0,
canvasId: 'imageCanvas',
success: function (res) {
that.setData({
shareImg:res.tempFilePath
})
},
fail(err){
console.log('agdgjgdajhg',err)
}
})
},500)
return false;
}).catch(err=>{
console.log("this err",err)
})
},
// 圆角矩形
handleBorderRect(ctx, x, y, w, h, r, color){
ctx.beginPath();
ctx.moveTo(x+w,y+h);
ctx.lineTo(x,y+h)
// 左上角
ctx.arc(x + r, y + r, r, Math.PI, 1.5 * Math.PI);
ctx.moveTo(x + r, y);
ctx.lineTo(x + w - r, y);
ctx.lineTo(x + w, y + r);
// 右上角
ctx.arc(x + w - r, y + r, r, 1.5 * Math.PI, 2 * Math.PI);
ctx.lineTo(x + w, y + h );
ctx.lineTo(x + w - r, y + h);
ctx.fillStyle = color;
ctx.fill();
ctx.closePath();
},
handleBorderRect2(ctx, x, y, w, h, r, color){
ctx.beginPath();
ctx.moveTo(x,y);
ctx.lineTo(x+w,y)
// 右下角
ctx.arc(x + w - r, y + h - r, r, 0, 0.5 * Math.PI);
ctx.lineTo(x + r, y + h);
ctx.lineTo(x, y + h - r);
// 左下角
ctx.arc(x + r, y + h - r, r, 0.5 * Math.PI, Math.PI);
ctx.lineTo(x, y);
ctx.lineTo(x, y);
ctx.fillStyle = color;
ctx.fill();
ctx.closePath();
},
// 绘制两行文字
drawText: function(ctx, str, x, y, canvasWidth,ratio) {
let row = [],temp="",chr=str.split("");
for (var a = 0; a < chr.length; a++) {
if (ctx.measureText(temp).width < canvasWidth) {
temp += chr[a];
}
else {
a--; //这里添加了a-- 是为了防止字符丢失,效果图中有对比
row.push(temp);
temp = "";
}
}
row.push(temp);
//如果数组长度大于2 则截取前两个
if (row.length > 2) {
var rowCut = row.slice(0, 2);
var rowPart = rowCut[1];
var test = "";
var empty = [];
for (var a = 0; a < rowPart.length; a++) {
if (ctx.measureText(test).width < canvasWidth - 30 * ratio) {
test += rowPart[a];
}
else {
break;
}
}
empty.push(test);
var group = empty[0] + "..."//这里只显示两行,超出的用...表示
rowCut.splice(1, 1, group);
row = rowCut;
}
for (var b = 0; b < row.length; b++) {
ctx.fillText(row[b], x, y + b * 40 * ratio, canvasWidth);
}
},
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/**
* 生命周期函数--监听页面初次渲染完成
*/
onReady: function () {
},
/**
* 生命周期函数--监听页面显示
*/
onShow: function () {
if(this.data.list.length>0){
this.setListTime()
}
if(this.data.info && this.data.info.isGroupPurchasing==1){
this.setTime()
}
},
/**
* 生命周期函数--监听页面隐藏
*/
onHide: function () {
if(timer){
clearTimeout(timer)
timer = null;
}
if(timer2){
clearTimeout(timer2);
timer2 = null;
}
},
/**
* 生命周期函数--监听页面卸载
*/
onUnload: function () {
},
/**
* 页面相关事件处理函数--监听用户下拉动作
*/
onPullDownRefresh: function () {
},
/**
* 页面上拉触底事件的处理函数
*/
onReachBottom: function (e) {
},
/**
* 用户点击右上角分享
*/
onShareAppMessage: function (e) {
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if(e.from=='button' || this.data.isOn){
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return {
title: "我正在发起团购,快来参加吧", // 默认是小程序的名称(可以写slogan等)
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path: "/pages/group/info/index?id="+this.data.info.id+'&team_id='+this.data.myIngList.team_list[0].team_id, // 默认是当前页面,必须是以‘/’开头的完整路径
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imageUrl: this.data.info.headimg, //自定义图片路径,可以是本地文件路径、代码包文件路径或者网络图片路径,支持PNG及JPG,不传入 imageUrl 则使用默认截图。显示图片长宽比是 5:4
}
}
else {
return {
title: this.data.info.title+this.data.info.sku_name+"正在团购中~", // 默认是小程序的名称(可以写slogan等)
path: "/pages/group/info/index?id="+this.data.info.id, // 默认是当前页面,必须是以‘/’开头的完整路径
imageUrl: this.data.info.headimg, //自定义图片路径,可以是本地文件路径、代码包文件路径或者网络图片路径,支持PNG及JPG,不传入 imageUrl 则使用默认截图。显示图片长宽比是 5:4
}
}
}
})