<template>
	<view class="page-news">
		<uni-list ref="list" class="listview" :enableBackToTop="true" :scroll-y="true" @scrolltolower="loadMore()">
			<uni-refresh class="refresh" @refresh="onrefresh" @pullingdown="onpullingdown"
				:display="refreshing ? 'show' : 'hide'">
				<div class="refresh-view">
					<image class="refresh-icon" :src="refreshIcon" :style="{width: (refreshing || pulling) ? 0: '32px'}"
						:class="{'refresh-icon-active': refreshFlag}"></image>
					<uni-load-more v-if="refreshing" class="loading-icon" status="loading"
						:contentText="loadingMoreText"></uni-load-more>
					<text class="loading-text">{{refreshText}}</text>
				</div>
			</uni-refresh>
			<uni-cell v-for="(item, index) in dataList" :key="item.id">
				<order-item v-if="!saveItemFlag && item.id" :newsItem="item" @click.native="goDetail(item)"></order-item>
				<saveItem v-if="saveItemFlag && item.id" :newsItem="item" @click.native="goDetail(item,'saveItem')"></saveItem>
			</uni-cell>
			<uni-cell v-if="isLoading || dataList.length > 4">
				<view class="loading-more">
					<text class="loading-more-text">{{loadingText}}</text>
				</view>
			</uni-cell>
		</uni-list>
		<no-data class="no-data" v-if="isNoData" @retry="loadMore"></no-data>
	</view>
</template>

<script>
	import { mapState } from 'vuex'
	import uniList from '@/components/uni-list.vue';
	import uniCell from '@/components/uni-cell.vue';
	import uniRefresh from '@/components/uni-refresh.vue';
	import uniLoadMore from '@/components/uni-load-more.vue';
	import noData from '@/components/nodata.nvue';
	import orderItem from './order-item.nvue';
	import saveItem from './save-item.nvue';
	import { findAppGoodsSingle, findSavedApplyBill, doQuery, findChildGoodsSingle } from '@/servers/purchaseList.js'
	export default {
		components: {
			uniList,
			uniCell,
			uniRefresh,
			uniLoadMore,
			noData,
			orderItem,
			saveItem
		},
		props: {
			nid: {
				type: [Number, String],
				default: ''
			},
			conditions: {
				type: Object,
				default: () => {}
			}
		},
		data() {
			return {
				dataList: [],
				navigateFlag: false,
				pulling: false,
				refreshing: false,
				refreshFlag: false,
				refreshText: "",
				isLoading: false,
				loadingText: '加载中...',
				isNoData: false,
				pulling: false,
				angle: 0,
				loadingMoreText: {
					contentdown: '',
					contentrefresh: '',
					contentnomore: ''
				},
				refreshIcon: "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAMAAABg3Am1AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAB5QTFRFcHBw3Nzct7e39vb2ycnJioqK7e3tpqam29vb////D8oK7wAAAAp0Uk5T////////////ALLMLM8AAABxSURBVHja7JVBDoAgDASrjqj//7CJBi90iyYeOHTPMwmFZrHjYyyFYYUy1bwUZqtJIYVxhf1a6u0R7iUvWsCcrEtwJHp8MwMdvh2amHduiZD3rpWId9+BgPd7Cc2LIkPyqvlQvKxKBJ//Qwq/CacAAwDUv0a0YuKhzgAAAABJRU5ErkJggg==",
				page: {
					"page": "1",
					"PAGESIZE": "10",
				},
				loadParams: {
					total: 0,
					totalPage: 1,
					isDone: false,
					isRefresh: false
				},
				condition: {
					endDate: "",
					page: 1,
					pagesize: 20,
					startDate: "",
					status: "0",
				}
			}
		},
		computed: {
			...mapState(['isChildCustomer']),
		},
		created() {
			this.pullTimer = null;
			this.requestParams = {
				columnId: this.nid,
				minId: 0,
				pageSize: 10,
				column: 'id,post_id,title,author_name,cover,published_at,comments_count'
			};

			this._isWidescreen = false;
			// #ifdef H5
			var mediaQueryOb = uni.createMediaQueryObserver(this)
			mediaQueryOb.observe({
				minWidth: 768
			}, matches => {
				this._isWidescreen = matches;
			})
			// #endif
		},
		methods: {
			async getFiles(id) {
			  const params = {
				bizId: id,
				bizCode: 'wantGoods'
			  }
			  const res= await doQuery(params)
			  console.log(res,'------')
			  // this.gridOptions2.data = data
			},
			async loadData(refresh) {
				if (this.isLoading) {
					return;
				}

				this.isLoading = true;
				this.isNoData = false;
				this.requestParams.time = new Date().getTime() + '';

				var startTime = new Date();
				const params = {
					...this.condition,
					endDate: this.conditions.endDate,
					startDate: this.conditions.startDate,
					status: this.conditions.status,
				}
				this.saveItemFlag = this.conditions.status - 4 === 0
				let res = null
				if(this.conditions.status - 4 === 0){
					res = await findSavedApplyBill(params)
				}else{
					const api = this.isChildCustomer ? findChildGoodsSingle : findAppGoodsSingle
					res = await api(params)
				}
				if(res.status - 1 === 0){
					this.isLoading = false;
					if (refresh) {
						this.refreshing = false;
						this.refreshFlag = false;
						this.refreshText = "已刷新";
						if (this.pullTimer) {
							clearTimeout(this.pullTimer);
						}
						this.pullTimer = setTimeout(() => {
							this.pulling = false;
						}, 1000);
					}
				}else{
					this.isNoData = true;
				}
				if(this.conditions.status - 4 === 0){
					this.isNoData = (res.data.length <= 0);
					if (refresh) {
						this.dataList = res.data;
						this.requestParams.minId = 0;
					} else {
						this.dataList = this.dataList.concat(res.data);
					}
				}else{
					this.isNoData = (res.data.Rows.length <= 0);
					this.loadParams.totalPage = Math.ceil(res.data.Total * 1 / this.condition.pagesize * 1)
					if (refresh) {
						this.dataList = res.data.Rows;
						this.requestParams.minId = 0;
					} else {
						this.dataList = this.dataList.concat(res.data.Rows);
					}
					
					if (this.dataList.length > 0 && this._isWidescreen && this.dataList.length <= 10) {
						this.goDetail(this.dataList[0]);
					}
				}
			},
			loadMore(e) {
				if (this.condition.page < this.loadParams.totalPage) {
					this.condition.page++
					this.loadData(false);
				} else {
					this.loadingText = '--已到底--'
				}
			},
			clear() {
				this.dataList.length = 0;
				this.requestParams.minId = 0;
			},
			goDetail(detail, type=null) {
				if(type){
					uni.navigateTo({
						url: `/pages/purchase/purchase-apply?id=${detail.id}&sourceType=myPurchase`
					})
				}
			},
			refreshData() {
				if (this.isLoading) {
					return;
				}
				this.condition.page = 1
				this.pulling = true;
				this.refreshing = true;
				this.refreshText = "正在刷新...";
				this.loadData(true);
			},
			onrefresh(e) {
				this.refreshData();
				// #ifdef APP-NVUE
				this.$refs.list.resetLoadmore();
				// #endif
			},
			onpullingdown(e) {
				if (this.refreshing) {
					return;
				}

				// var angle = (e.pullingDistance) / e.viewHeight * 180;
				// if (angle > 180) {
				// 	angle = 180;
				// }
				// tab.angle = angle;

				this.pulling = false;
				if (Math.abs(e.pullingDistance) > Math.abs(e.viewHeight)) {
					this.refreshFlag = true;
					this.refreshText = "释放立即刷新";
				} else {
					this.refreshFlag = false;
					this.refreshText = "下拉可以刷新";
				}
			},
			newGuid() {
				let s4 = function() {
					return (65536 * (1 + Math.random()) | 0).toString(16).substring(1);
				}
				return (s4() + s4() + "-" + s4() + "-4" + s4().substr(0, 3) + "-" + s4() + "-" + s4() + s4() + s4())
					.toUpperCase();
			}
		}
	}
</script>

<style lang="scss" scoped>
	.no-data {
		flex: 1;
		position: absolute;
		left: 0;
		top: 0;
		right: 0;
		bottom: 0;
		z-index: 10;
	}

	.page-news {
		flex: 1;
		flex-direction: column;
		position: absolute;
		left: 0;
		top: 0;
		right: 0;
		bottom: 0;
	}

	.listview {
		position: absolute;
		left: 0;
		top: 0;
		right: 0;
		bottom: 0;
		/* #ifndef APP-NVUE */
		display: flex;
		flex-direction: column;
		/* #endif */
		/* #ifndef MP-ALIPAY */
		flex-direction: column;
		/* #endif */
	}

	.refresh {
		justify-content: center;
	}

	.refresh-view {
		/* #ifndef APP-NVUE */
		display: flex;
		/* #endif */
		width: 750rpx;
		height: 64px;
		flex-direction: row;
		flex-wrap: nowrap;
		align-items: center;
		justify-content: center;
	}

	.refresh-icon {
		width: 32px;
		height: 32px;
		transition-duration: .5s;
		transition-property: transform;
		transform: rotate(0deg);
		transform-origin: 15px 15px;
	}

	.refresh-icon-active {
		transform: rotate(180deg);
	}

	.loading-icon {
		width: 28px;
		height: 28px;
		margin-right: 5px;
		color: gray;
	}

	.loading-text {
		margin-left: 2px;
		font-size: 16px;
		color: #999999;
	}

	.loading-more {
		align-items: center;
		justify-content: center;
		padding-top: 14px;
		padding-bottom: 14px;
		text-align: center;
	}

	.loading-more-text {
		font-size: 12px;
		color: #999;
	}
</style>
