<template>
	<view class="zhilin-picker">
		<uni-popup ref="popup" type="top" @change="popupChange">
			<uni-nav-bar @clickLeft="clickLeft" @clickRight="tapOK" rightText="确定" left-icon="closeempty" :title="title" :border="null"></uni-nav-bar>
			<view class="usb">
				<uni-search-bar v-if="showSearch" :radius="100" cancelButton="none" v-model="searchVal"></uni-search-bar>
			</view>
			<view class="main" v-if="list.length">
				<scroll-view scroll-y="true" @scrolltolower="lower" :lower-threshold="1">
					<view class="scroll-view-item flex" v-for="(v,i) in list" :key="i" @tap="tapItem(v.id,v.name,v)" :class="selected.indexOf(v.id)>-1?'selected':null">
						<view>
							<view>{{v.name}}</view>
							<!-- <text class="detail_address">{{v.province}}{{v.city}}{{v.district}}{{v.detail_address}}</text> -->
						</view>
						<view><icon v-show="selected.indexOf(v.id)>-1" type="success_no_circle" size="22" /></view>
					</view>
					<view v-if="showBottom" class="isBottom">已经到底啦~</view>
				</scroll-view>
				<view class="loadingBox" v-show="loading">
					<uni-load-more status="loading"></uni-load-more>
				</view>
			</view>
			<view v-else class="empty">
				<xw-empty text="暂无选项" textColor="#777777"></xw-empty>
			</view>
		</uni-popup>
	</view>
</template>

<script>
	import uniPopup from "../uni-popup/uni-popup.vue"
	import uniNavBar from "../uni-nav-bar/uni-nav-bar.vue"
	import xwEmpty from "../xw-empty/xw-empty.vue"
	import uniSearchBar from '../uni-search-bar/uni-search-bar.vue'
	import uniLoadMore from "../more/uni-load-more.vue"
	export default {
		name: 'zhilin-select',
		components: {
			uniPopup,
			uniNavBar,
			xwEmpty,
			uniSearchBar,
			uniLoadMore
		},
		props: {
			title: {
				type: String,
				default: '请选择'
			},
			value: {
				type: Boolean,
				required: true
			},
			data: {
				type: Array,
				required: true
			},
			multiple: {
				type: Boolean,
				default: false
			},
			showSearch: {
				type: Boolean,
				default: false
			},
			searchInput: Function,
			initSelected: Array
		},
		data() {
			return {
				list: [],
				selected: [],
				showBottom: false,
				loading: false,
				searchVal: ''
			}
		},
		created() {
			this.dataInit()
		},
		watch: {
			value(n, o) {
				if (n) this.$refs.popup.open()
				else this.$refs.popup.close()
			},
			data(n, o) {
				this.loading = false
				this.showBottom = false
				this.dataInit()
			},
			searchVal(){
				this.$emit("searchInput",this.searchVal)
				this.inputSearch()
			},
			initSelected(n){
				this.selected = n
			}
		},
		methods: {
			lower: function(e) {
				this.showBottom = true
			},
			dataInit() {
				this.list = this.data;
			},
			clickLeft() {
				this.$emit("input", false)
			},
			tapItem(val,name,v) {
				console.log(333,val,name,v)
				if (this.multiple) {
					let idx = this.selected.indexOf(val)
					if (idx == -1) {
						this.selected.push(val)
					} else {
						this.selected.splice(idx, 1)
					}
				} else {
					// this.selected = [val,name,v.city,v.city_id,v.district,v.district_id,v.province,v.province_id,]
					this.selected = [val,name]
					// this.selected = [name]
				}
				this.$emit("change", this.selected.join())
			},
			tapOK() {
				if(this.selected.join() == '' && this.list != ''){
					this.$api.msg('请先点击机构列表选择机构！');
					return;
				}
				this.$emit("input", false)
				this.$emit("confirm", this.selected.join())
			},
			popupChange(e) {
				this.$emit("input", e.show)
			},
			inputSearch() {
				let val = this.searchVal
				if(this.searchInput){
					this.loading = true
					this.searchInput(val)
					return
				}
				this.showBottom = false
				if(this.list == ''){
					
				}else{
					this.list = this.list.map((v, i) => ({
						label: v,
						value: v
					}))
				}
			}
		}
	}
</script>

<style lang="scss">
	.zhilin-picker {
		font-size: 28rpx;

		uni-popup /deep/ .uni-popup {
			width: 750rpx;
			background: #fff;
			height: 1056rpx;
			overflow: hidden;
			display: flex;
			flex-direction: column;
		}

		uni-popup {
			.usb {
				padding: 0 32rpx;
				background: #fff;
			}

		}
	}
	
	.main {
		height: calc(800rpx - 192rpx);
		flex: 1;
		position: relative;
		background: #fff;
		scroll-view {
			height: 100%;
			.scroll-view-item {
				box-sizing: border-box;
				padding: 18rpx 44rpx !important;
				display: flex;
				justify-content: space-between;
				align-items: center;
				min-height: 80rpx;
				&.selected {
					background:rgba(0, 122, 255, 0.1);
				}
				uni-text {
					width: 85%;
				}
			}
	
			.isBottom {
				display: flex;
				justify-content: center;
				color: #777;
				position: relative;
				padding: 18rpx 44rpx;
				font-size: 24rpx;
	
				&::after {
					content: '';
					position: absolute;
					bottom: 10rpx;
					width: 60rpx;
					height: 4rpx;
					left: 50%;
					transform: translateX(-51%);
					background: #777;
				}
			}
		}
	
		.loadingBox {
			height: 100%;
			width: 100%;
			position: absolute;
			top: 0;
			left: 0;
			background: rgba(255, 255, 255, .7);
			z-index: 2;
	
			uni-load-more {
				display: flex;
				justify-content: center;
				position: absolute;
				width: 100%;
				top: 35%;
				left: 50%;
				transform: translate(-50%);
			}
		}
	}
	.detail_address{
		color: #969696;
		font-size: 24rpx;
		padding-top: 10rpx;
	}
	.empty {
		background: #fff;
	}
</style>