<template>
	<view>
		<view class="top-content">
			<!-- 这里是状态栏 -->
			<view class="status_bar" :style="{height: statusBarHeight}"></view>
			<view class="top-title">健康百科</view>
			<!-- 搜索框 -->
			<view class="search-cont">
				<view class="inner">
					<image class="icon-search" src="../../static/images/search.png" mode=""></image>
					<input type="text" v-model="searchValue" placeholder="输入关键字搜索" confirm-type="search"
						@confirm="doSearch"
						placeholder-style="font-size:28rpx;color:#BBBBBB;font-family: PingFang SC;" />
				</view>
			</view>
			<view class="keyword-list">
				<!-- 关键字列表 -->
				<!-- <scroll-view   scroll-x="true" >
				<view class="inner">
					<view v-for="(item,index) in cates" :key="index" :class="choseCateId == item.cateId?'item active':'item'" @click="choseCate(item)">
						{{ item.cateName }}
					</view>
				</view>
			</scroll-view> -->
				<u-tabs :list="cates" :activeStyle="{fontWeight: '600',color: '#222426',fontSize: '34rpx'}"
					:inactiveStyle="{color: '#222426',fontSize: '32rpx'}" @click="choseCate(item)"
					scrollable="false"></u-tabs>
			</view>
		</view>

		<!-- 知识列表 -->
		<mescroll-body :top="top" ref="mescrollRef" @init="mescrollInit" @down="downCallback" @up="upCallback"
			:down="downOption" :up="upOption">
			<view class="know-list">
				<view class="item" v-for="(item,index) in dataList" :key="index" @click="showDetail(item)">
					<view class="left">
						<view class="title ellipsis2">{{ item.title }}</view>
						<view class="info-box">
							<view class="readers">
								<!-- <view class="head-box" v-if="item.viewsList!=null&&item.viewsList.length>0">
									<view class="head" v-for="(subitem,j) in item.viewsList" :key="j" v-if="subitem!=null">
										<image  :src="subitem.avatar==null?'../../static/images/detault_head.jpg':subitem.avatar" mode=""></image>
									</view>
								</view> -->
								<view class="readings">
									<!-- <image class="eye" src="../../static/images/eye.png" ></image> -->
									<text class="num mr24">阅读 {{item.views}}</text>
								</view>
							</view>
							<view class="time">{{item.publishTime}}</view>
						</view>
					</view>
					<view class="right">
						<image :src="item.imageUrl" mode="aspectFill"></image>
					</view>
				</view>
			</view>
		</mescroll-body>

	</view>
</template>

<script>
	import {
		getArticleCate,
		getArticleList
	} from '@/api/article'
	import MescrollMixin from "@/uni_modules/mescroll-uni/components/mescroll-uni/mescroll-mixins.js";
	export default {
		mixins: [MescrollMixin],
		data() {
			return {
				top: '0px',
				cates: [],
				choseCateId: 0,
				// 状态栏的高度
				statusBarHeight: uni.getStorageSync('menuInfo').statusBarHeight,
				searchValue: '',
				mescroll: null,
				// 上拉加载的配置
				downOption: {

				},
				upOption: {
					onScroll: true,
					use: true, // 是否启用上拉加载; 默认true
					page: {
						num: 0, // 当前页码,默认0,回调之前会加1,即callback(page)会从1开始
						size: 10 // 每页数据的数量,默认10
					},
					noMoreSize: 10, // 配置列表的总数量要大于等于5条才显示'-- END --'的提示
					empty: {
						icon: '/static/images/no_data.png',
						tip: '暂无数据'
					},
					textNoMore: '已经到底了'
				},
				// 列表数据
				dataList: [],
			};
		},
		onShow() {
			this.getArticleCate();
			var that = this;
			setTimeout(function() {
				let query = uni.createSelectorQuery().select(".top-content");
				query.boundingClientRect(function(data) { //data - 各种参数
					console.log(data.height) // 获取元素宽度
					that.top = data.height + "px";
				}).exec()
			}, 500);

			// 		let info1 = uni.createSelectorQuery().select(".keyword-list");
			// 　　　  info1.boundingClientRect(function(data) { //data - 各种参数
			// 　　　  　 	console.log(data.height)  // 获取元素宽度

			// 　　    }).exec()

		},
		methods: {
			doSearch() {
				this.mescroll.resetUpScroll()
			},
			getArticleCate() {
				var that = this;
				let data = {};
				getArticleCate(data).then(
					res => {
						if (res.code == 200) {
							this.cates = res.data.map(person => ({
								name: person.cateName
							}));

						} else {
							uni.showToast({
								icon: 'none',
								title: "请求失败",
							});
						}
					},
					rej => {}
				);
			},
			mescrollInit(mescroll) {
				this.mescroll = mescroll;
			},
			/*下拉刷新的回调 */
			downCallback(mescroll) {
				mescroll.resetUpScroll()
			},
			upCallback(page) {
				//联网加载数据
				var that = this;
				var data = {
					keyword: this.searchValue,
					cateId: this.choseCateId,
					page: page.num,
					pageSize: page.size
				};
				getArticleList(data).then(res => {
					if (res.code == 200) {
						//设置列表数据
						if (page.num == 1) {
							that.dataList = res.data.list;

						} else {
							that.dataList = that.dataList.concat(res.data.list);

						}
						that.mescroll.endBySize(res.data.list.length, res.data.total);

					} else {
						uni.showToast({
							icon: 'none',
							title: "请求失败",
						});
						that.dataList = null;
						that.mescroll.endErr();
					}
				});
			},
			// 关键词选择
			choseCate(item) {
				this.choseCateId = item.cateId;
				this.mescroll.resetUpScroll()
			},
			// 查看详情
			showDetail(item) {
				uni.navigateTo({
					url: './detail?articleId=' + item.articleId
				})
			}
		}
	}
</script>

<style lang="scss">
	page {
		background: #EFF3F7;
	}

	.status_bar {
		width: 100%;

	}

	.top-content {
		width: 100%;
		position: fixed;
		top: 0;
		left: 0;
		z-index: 10;
	}

	.top-title {
		height: 88upx;
		line-height: 88upx;
		font-size: 42upx;
		font-family: Source Han Sans CN;
		font-weight: bold;
		color: #222222;
		padding-left: 41upx;
	}

	.search-cont {
		padding: 16upx 30upx;

		.inner {
			box-sizing: border-box;
			width: 100%;
			height: 72upx;
			background: #fff;
			border-radius: 36upx;
			display: flex;
			align-items: center;
			padding: 0 30upx;

			.icon-search {
				width: 28upx;
				height: 28upx;
				margin-right: 20upx;
			}

			input {
				height: 60upx;
				line-height: 60upx;
				flex: 1;
			}
		}
	}

	.keyword-list {
		box-sizing: border-box;
		padding: 10upx 27upx;
		height: 100upx;

		.inner {
			display: flex;
		}

		.item {
			flex-shrink: 0;
			padding: 0 24upx;
			height: 64upx;
			line-height: 64upx;
			font-size: 28upx;
			font-family: PingFang SC;
			font-weight: 500;
			color: #0bb3f2;
			background: #F5FFFE;
			border: 1px solid #0bb3f2;
			border-radius: 32upx;
			margin: 0 20upx 20upx 0;

			&.active {
				color: #FFFFFF;
				background: #0bb3f2;
				border: 1px solid #0bb3f2;
			}
		}
	}

	.know-list {
		margin-top: 20upx;
		padding: 0 24upx;
		

		.item {
			box-sizing: border-box;
			height: 208rpx;
			background: #FFFFFF;
			border-radius: 16upx;
			padding: 32upx;
			display: flex;
			align-items: center;
			justify-content: space-between;
			margin-bottom: 20upx;

			.left {
				flex: 1;
				padding-right: 40upx;

				display: flex;
				flex-direction: column;
				justify-content: space-between;

				.title {
					font-family: PingFang SC, PingFang SC;
					font-weight: 500;
					font-size: 32rpx;
					color: #222426;
					line-height: 44rpx;
				}

				.info-box {
					width: 100%;
					display: flex;
					align-items: center;
					margin-top: 12rpx;

					// justify-content: space-between;
					.readers {
						display: flex;
						align-items: center;

						.head-box {
							margin-right: 27upx;
							display: flex;
							align-items: center;

							.head {
								width: 48upx;
								height: 48upx;
								border-radius: 50%;
								overflow: hidden;
								box-shadow: 0 0 0 1px #fff;
								margin-right: -10upx;

								image {
									width: 100%;
									height: 100%;
								}
							}
						}

						.readings {
							display: flex;
							align-items: center;

							.eye {
								width: 26upx;
								height: 20upx;
								margin-right: 9upx;
							}

							.num {
								font-size: 24upx;
								font-family: PingFang SC;
								font-weight: 500;
								color: #999999;
								line-height: 1;
							}
						}
					}

					.time {
						font-size: 24upx;
						line-height: 1;
						font-family: PingFang SC;
						font-weight: 500;
						color: #999999;
					}
				}
			}

			.right {
				width: 250upx;
				height: 144rpx;
				border-radius: 8upx;
				overflow: hidden;

				image {
					width: 100%;
					height: 100%;
				}
			}
		}
	}
</style>