<template>
	<view class="">
		<view class="box">
			<view class="left" ref="left">
				<view class="item" v-for="(item,i) in leftList" :key="i" @click="goDetail(item)">
					<image class="image" :src="item.headimg" mode="widthFix"></image>
					<view class="content">
						<view class="title">{{item.title}}</view>
						<view class="flex-between">
							<view class="text-overflow" style="display: flex;align-items: center;width: 200rpx;">
								<image :src="showImg(item.author_img)" mode="" class="author-img"></image>
								{{item.author}}
							</view>
							<view style="display: flex;">
								<image src="https://static.ticket.sz-trip.com/yandu/images/index/eye.png" mode="" class="eye-img"></image>
								{{item.view}}
							</view>
						</view>
					</view>
				</view>
			</view>
			<view class="right" ref="right">
				<view class="item" v-for="(item,i) in rightList" :key="i" @click="goDetail(item)">
					<image class="image" :src="item.headimg" mode="widthFix"></image>
					<view class="content">
						<view class="title">{{item.title}}</view>
						<view class="flex-between">
							<view class="text-overflow" style="display: flex;align-items: center;width: 200rpx;">
								<image :src="showImg(item.author_img)" mode="" class="author-img"></image>
								{{item.author}}
							</view>
							<view style="display: flex;">
								<image src="https://static.ticket.sz-trip.com/yandu/images/index/eye.png" mode="" class="eye-img"></image>
								{{item.view}}
							</view>
						</view>
					</view>
				</view>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		props: ['waterList'],
		data() {
			return {
				leftList: [], //左边列图片
				rightList: [], //右边列图片
				leftHeight: 0, //左边列高度
				rightHeight: 0, //右边列高度
			}
		},
		mounted() {
			
		},
		watch:{
			waterList: {
			    handler(newVal, oldVal) {
					console.log(newVal, oldVal)
					this.waterList = newVal
					if(newVal.length > 0) {
						this.setWaterFallLayout()
					}
			    },
			    immediate: true
			}
		},
		methods: {
			//通过uni.getImageInfo，小程序支持
			async setWaterFallLayout() {
				for (let item of this.waterList) {
					try {
						let h = await this.getImgHeight(item.headimg)
						if (this.leftHeight <= this.rightHeight) {
							this.leftList.push(item)
							this.leftHeight += h
						} else {
							this.rightList.push(item)
							this.rightHeight += h
						}
					} catch (e) {}
				}
			},
			getImgHeight(url) {
				return new Promise((resolve, reject) => {
					uni.getImageInfo({
						src: url,
						success: e => {
							resolve(e.height)
						},
						fail: e => {
							reject(e)
						}
					})

				})
			},
			goDetail(item) {
				if(item.outside_url) {
					uni.navigateTo({
						url: '/subPackages/webPage/webPage?url=' + encodeURIComponent(item.outside_url)
					});
				}else {
					uni.navigateTo({
						url: '/subPackages/strategyDetail?id=' + item.id
					})
				}
			}
		}
	}
</script>

<style scoped lang="scss">
	.box {
		display: flex;
		flex-wrap: wrap;
		justify-content: space-between;
		
		.left, .right {
			width: 340rpx;
			
			.item {
				width: 340rpx;
				background: #FFFFFF;
				box-shadow: 0rpx 0rpx 11rpx 0rpx rgba(17,17,17,0.26);
				border-radius: 27rpx;
				overflow: hidden;
				margin-bottom: 13.33rpx;
				
				.image {
					width: 340rpx;
				}
				
				.content {
					background: #FFFFFF;
					padding: 20rpx;
					
					.title {
						font-weight: 500;
						font-size: 28rpx;
						color: #000000;
						line-height: 40rpx;
					}
					
					.flex-between {
						font-weight: 500;
						font-size: 24rpx;
						color: #888888;
					}
				}
			}
		}
	}
</style>