<template>
	<view>
		<uni-nav-bar fixed="true" statusBar="true">
			<block slot="left">
				<view class="city">
					<view>
						<text class="uni-nav-bar-text">{{ city }}</text>
					</view>
					<uni-icons type="arrowdown" color="#666" size="18" />
				</view>
			</block>
			<view class="input-view">
				<uni-icons class="input-uni-icon" type="search" size="18" color="#999" />
				<input confirm-type="search" class="nav-bar-input" type="text" placeholder="输入搜索关键词"
					@confirm="confirm" />
			</view>
			<block slot="right">
				<view class="city">
					搜索
				</view>
			</block>
		</uni-nav-bar>
		<uni-list>
			<uni-list-chat clickable @click="onClick(item)" v-for="item in listData" :key="item.id"
				:title="item.author_name" :avatar="item.cover" :note="item.title" badge-positon="left"
				:badge-text="item.text">
				<view class="chat-custom-right">
					<text class="chat-custom-text">刚刚</text>
					<uni-icons type="star-filled" color="#999" size="18"></uni-icons>
				</view>
			</uni-list-chat>
		</uni-list>
	</view>
</template>

<script>
	export default {
		components: {},
		data() {
			return {
				UNITS: {
					'年': 31557600000,
					'月': 2629800000,
					'天': 86400000,
					'小时': 3600000,
					'分钟': 60000,
					'秒': 1000
				},
				listData: [],
				city: '北京'
			}
		},
		onLoad() {
			this.getList()
		},
		methods: {
			confirm() {
				uni.showToast({
					title: '搜索'
				})
			},
			onClick(e) {
				console.log(e)
				uni.showToast({
					title: '列表被点击'
				})
			},
			avatar(count) {
				let arr = []
				this.avatarList.forEach((item, index) => {
					if (index < count) {
						arr.push(item)
					}
				})
				return arr
			},
			getList() {
				var data = {
					column: 'id,post_id,title,author_name,cover,published_at' //需要的字段名
				};

				uni.request({
					url: 'https://unidemo.dcloud.net.cn/api/news',
					data: data,
					success: data => {
						if (data.statusCode == 200) {
							let list = this.setTime(data.data);
							list = this.reload ? list : this.listData.concat(list);
							list.map(item => {
								item.text = Math.floor(Math.random() * (1 - 20) + 20)
								return item
							})
							this.listData = this.getRandomArrayElements(list, 20)
						}
					},
					fail: (data, code) => {
						console.log('fail' + JSON.stringify(data));
					}
				});
			},
			getRandomArrayElements(arr, count) {
				var shuffled = arr.slice(0),
					i = arr.length,
					min = i - count,
					temp, index;
				while (i-- > min) {
					index = Math.floor((i + 1) * Math.random());
					temp = shuffled[index];
					shuffled[index] = shuffled[i];
					shuffled[i] = temp;
				}
				return shuffled.slice(min);
			},
			setTime(items) {
				var newItems = [];
				items.forEach(e => {
					newItems.push({
						author_name: e.author_name,
						cover: e.cover,
						id: e.id,
						post_id: e.post_id,
						published_at: this.format(e.published_at),
						title: e.title
					});
				});
				return newItems;
			},
			format(dateStr) {
				var date = this.parse(dateStr)
				var diff = Date.now() - date.getTime();
				if (diff < this.UNITS['天']) {
					return this.humanize(diff);
				}
				var _format = function(number) {
					return (number < 10 ? ('0' + number) : number);
				};
				return date.getFullYear() + '-' + _format(date.getMonth() + 1) + '-' + _format(date.getDate()) + ' ' +
					_format(date.getHours()) + ':' + _format(date.getMinutes());
			},
			parse(str) { //将"yyyy-mm-dd HH:MM:ss"格式的字符串，转化为一个Date对象
				var a = str.split(/[^0-9]/);
				return new Date(a[0], a[1] - 1, a[2], a[3], a[4], a[5]);
			},

		}
	}
</script>

<style lang="scss">
	.chat-custom-right {
		flex: 1;
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		flex-direction: column;
		justify-content: space-between;
		align-items: flex-end;
	}

	.chat-custom-text {
		font-size: 12px;
		color: #999;
	}

	$nav-height: 30px;

	.box-bg {
		background-color: #F5F5F5;
		padding: 5px 0;
	}

	.city {
		/* #ifndef APP-PLUS-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		align-items: center;
		justify-content: flex-start;
		// width: 160rpx;
		margin-left: 4px;
	}

	.input-view {
		/* #ifndef APP-PLUS-NVUE */
		display: flex;
		/* #endif */
		flex-direction: row;
		// width: 500rpx;
		flex: 1;
		background-color: #f8f8f8;
		height: $nav-height;
		border-radius: 15px;
		padding: 0 15px;
		flex-wrap: nowrap;
		margin: 7px 0;
		line-height: $nav-height;
	}

	.input-uni-icon {
		line-height: $nav-height;
	}

	.nav-bar-input {
		height: $nav-height;
		line-height: $nav-height;
		/* #ifdef APP-PLUS-NVUE */
		width: 370rpx;
		/* #endif */
		padding: 0 5px;
		font-size: 12px;
		background-color: #f8f8f8;
	}
</style>
