<template>
	<view class="app-page" :class="{ 'is-balck grey-darken-6': isBlackTheme }">
		<!-- 顶部切换 -->
		<view class="e-fixed shadow-2">
			<tm-search v-model="queryParams.keyword" :round="24" :shadow="0" color="light-blue" insert-color="light-blue" :clear="true" @confirm="fnOnSearch"></tm-search>
			<tm-tabs color="light-blue" :shadow="0" v-model="tab.activeIndex" :list="tab.list" align="center" @change="fnOnTabChange"></tm-tabs>
		</view>
		<!-- 占位区域 -->
		<view style="width: 100vw;height: 184rpx;"></view>
		<!-- 加载区域 -->
		<view v-if="loading != 'success'" class="loading-wrap pa-24">
			<tm-skeleton model="listAvatr"></tm-skeleton>
			<tm-skeleton model="listAvatr"></tm-skeleton>
			<tm-skeleton model="listAvatr"></tm-skeleton>
			<tm-skeleton model="listAvatr"></tm-skeleton>
		</view>
		<!-- 内容区域 -->
		<view v-else class="content">
			<view v-if="dataList.length == 0" class="content-empty flex flex-center">
				<!-- 空布局 -->
				<tm-empty icon="icon-shiliangzhinengduixiang-" label="该分类下暂无数据"></tm-empty>
			</view>
			<block v-else>
				<block v-for="(article, index) in dataList" :key="article.id">
					<!-- 文章卡片 -->
					<tm-translate animation-name="fadeUp" :wait="(index + 1) * 50">
						<article-card :article="article" @on-click="fnToArticleDetail"></article-card>
						<!-- 广告区域 -->
						<view v-if="haloAdConfig.articles.use && (index + 1) % haloAdConfig.frequency == 0" class="ad-wrap ma-24">
							<!-- #ifdef MP-WEIXIN -->
							<ad v-if="haloAdConfig.unitId" :unit-id="haloAdConfig.unitId"></ad>
							<!-- #endif -->
							<!-- #ifndef MP-WEIXIN -->
							<ad v-if="haloAdConfig.adpid" :adpid="haloAdConfig.adpid"></ad>
							<!-- #endif -->
						</view>
					</tm-translate>
				</block>

				<tm-flotbutton @click="fnToTopPage" size="m" color="light-blue" icon="icon-angle-up"></tm-flotbutton>
				<view class="load-text">{{ loadMoreText }}</view>
			</block>
		</view>
	</view>
</template>

<script>
import tmSkeleton from '@/tm-vuetify/components/tm-skeleton/tm-skeleton.vue';
import tmSearch from '@/tm-vuetify/components/tm-search/tm-search.vue';
import tmTranslate from '@/tm-vuetify/components/tm-translate/tm-translate.vue';
import tmTabs from '@/tm-vuetify/components/tm-tabs/tm-tabs.vue';
import tmFlotbutton from '@/tm-vuetify/components/tm-flotbutton/tm-flotbutton.vue';
import tmEmpty from '@/tm-vuetify/components/tm-empty/tm-empty.vue';

export default {
	components: {
		tmSkeleton,
		tmSearch,
		tmTranslate,
		tmTabs,
		tmFlotbutton,
		tmEmpty
	},
	data() {
		return {
			isBlackTheme: false,
			loading: 'loading',
			tab: {
				activeIndex: 0,
				list: ['全部', '最新文章', '热门文章', '最近更新', '最多点赞']
			},
			queryParams: {
				size: 10,
				page: 0,
				sort: 'topPriority,createTime,desc',
				keyword: ''
			},
			cache: {
				dataList: [],
				total: 0
			},
			isLoadMore: false,
			loadMoreText: '加载中...',
			result: {},
			dataList: []
		};
	},
	onLoad() {
		this.fnSetPageTitle('文章列表');
	},
	created() {
		this.fnGetData();
	},
	onPullDownRefresh() {
		this.isLoadMore = false;
		this.queryParams.page = 0;
		this.fnGetData();
	},

	onReachBottom(e) {
		if (this.result.hasNext) {
			this.queryParams.page += 1;
			this.isLoadMore = true;
			this.fnGetData();
		} else {
			uni.showToast({
				icon: 'none',
				title: '没有更多数据了'
			});
		}
	},
	methods: {
		fnOnTabChange(index) {
			this.dataList = [];
			const _sorts = {
				0: '',
				1: 'topPriority,createTime,desc',
				2: 'topPriority,visits,desc',
				3: 'topPriority,updateTime,desc',
				4: 'topPriority,likes,desc'
			};
			this.queryParams.sort = _sorts[index];
			this.queryParams.page = 0;
			this.dataList = [];
			this.fnToTopPage();
			this.fnGetData();
		},
		fnOnSearch() {
			this.queryParams.page = 0;
			this.isLoadMore = false;
			this.fnGetData();
		},
		fnGetData() {
			uni.showLoading({
				mask: true,
				title: '加载中...'
			});
			// 设置状态为加载中
			if (!this.isLoadMore) {
				this.loading = 'loading';
			}
			this.loadMoreText = '加载中...';
			this.$httpApi
				.getPostList(this.queryParams)
				.then(res => {
					console.log('请求结果：');
					console.log(res);

					this.loading = 'success';
					this.loadMoreText = res.data.hasNext ? '上拉加载更多' : '呜呜，没有更多数据啦~';
					// 处理数据
					this.result = res.data;
					if (this.isLoadMore) {
						this.dataList = this.dataList.concat(res.data.content);
					} else {
						this.dataList = res.data.content;
					}
				})
				.catch(err => {
					console.error(err);
					this.loading = 'error';
					this.loadMoreText = '加载失败，请下拉刷新！';
				})
				.finally(() => {
					setTimeout(() => {
						uni.hideLoading();
						uni.stopPullDownRefresh();
					}, 800);
				});
		},

		//跳转文章详情
		fnToArticleDetail(article) {
			uni.navigateTo({
				url: '/pagesA/article-detail/article-detail?articleId=' + article.id,
				animationType: 'slide-in-right'
			});
		}
	}
};
</script>

<style lang="scss" scoped>
.app-page {
	width: 100vw;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	padding-bottom: 24rpx;
	background-color: #fafafd;

	&.is-balck {
		background-color: #212121;
	}
}
.content {
	padding-top: 24rpx;

	.content-empty {
		height: 60vh;
	}
}
</style>
