<template>
	<view class="u-wrap">
		<view class="serch txt-16">
			<uni-search-bar class="flex1" placeholder="请输入菜单名称" @confirm="search" @input="input" cancelButton="none"
				@clear="clearfilterlist">
			</uni-search-bar>
			<button class="mini-btn" type="primary" size="mini" style="margin-right:15rpx; font-size: 16px;"
				@click="search">搜索</button>
		</view>

		<view class="item-container" style="align-items: center; width: 100%;">
			<view class="thumb-box" v-for="(item1, index1) in filterList" :key="index1" @click="openCheck(item1.path)"
				style="text-align: center; ">
				<view class="" style="position: relative; ">
					<image class="item-menu-image" :src="'/static/menus/'+item1.componentName" mode="">
					</image>
					<view class="">
						<text class="item-menu-name">{{item1.name}}</text>
					</view>
				</view>
			</view>
			<view v-if="serchval.length >0 && nomore == true" class="nomore"
				style=" width: 100%; justify-content: center; margin: 20rpx;">
				<text style="font-size: 35rpx;">暂无数据</text>
			</view>
		</view>

		<view class="u-menu-wrap">
			<scroll-view scroll-y scroll-with-animation class="u-tab-view menu-scroll-view" :scroll-top="scrollTop"
				:scroll-into-view="itemId">
				<view v-for="(item,index) in tabbar" :key="index" class="u-tab-item"
					:class="[current == index ? 'u-tab-item-active' : '']" @tap.stop="swichMenu(index)">
					<text class="u-line-1">{{item.name}}</text>
				</view>
			</scroll-view>
			<scroll-view :scroll-top="scrollRightTop" scroll-y scroll-with-animation class="right-box"
				@scroll="rightScroll">
				<view class="page-view" style="padding-bottom: 100rpx;">
					<view class="class-item" :id="'item' + index" v-for="(item , index) in tabbar" :key="index">
						<view class="item-title">
							<text>{{item.name}}</text>
						</view>
						<view class="item-container" >
							<view class="thumb-box" v-for="(item1, index1) in item.children" :key="index1"
								@click="openCheck(item1.path)">
								<view class="" style="position: relative; ">
									<!-- 	<u-badge  class="item-menu-badge" v-if="item1.count>0" type="error" :count="item1.count" :offset="position"
										:showZero="false"></u-badge> -->
									<text class="item-menu-badge"
										v-if="item1.count>0">{{item1.count>9?'9+':item1.count}}</text>

									<image class="item-menu-image" :src="'/static/menus/'+item1.componentName" mode="">
									</image>
									<view class="">
										<text class="item-menu-name">{{item1.name}}</text>
									</view>

								</view>

							</view>
						</view>
					</view>
				</view>
			</scroll-view>
		</view>
		<comMessage ref="comMessage"></comMessage>
	</view>
</template>

<script>
	import {
		getDictionaryItem,
		getPackageUnitList,
		getMainMessage
	} from '@/api/request2.js';

	export default {
		components: {},
		data() {
			return {
				title: 'WMS仓库管理系统',
				scrollTop: 0, //tab标题的滚动条位置
				oldScrollTop: 0,
				current: 0, // 预设当前项的值
				menuHeight: 0, // 左边菜单的高度
				menuItemHeight: 0, // 左边菜单item的高度
				itemId: '', // 栏目右边scroll-view用于滚动的id
				tabbar: [],
				menuItemPos: [],
				arr: [],
				scrollRightTop: 0, // 右边栏目scroll-view的滚动条高度
				timer: null, // 定时器
				forcedLogin: false,
				count: 1,
				position: [-10, -10],
				menusCount: {},
				filterList: [],
				serchval: ""
			}
		},
		onLoad() {
			if (uni.getStorageSync("hasLogin")) {
				uni.showLoading({
					title: "正在获取菜单...",
					mask: true
				})
				this.$store.dispatch('getPermissionInfo').then(res => {
					uni.hideLoading()
					if (res.menus.length > 0) {
						var menus = res.menus.filter(item => item.name == "PDA菜单管理")
						if (menus!=undefined&&menus.length > 0) {
							var tab = menus[0].children.filter(res => res.visible == true)
							tab.forEach(res => {
								for (var i = 0; i < res.children.length; i++) {
									if (res.children[i].visible == false) {
										res.children.splice(i, 1)
									}
								}
							})
							this.tabbar = tab;
							var i = 0;
							this.tabbar.forEach(res => {
								res.children.forEach(res => {
									i++
									console.log(res.name, i)
								})
							})
							this.getDictory()
							this.timerRefresh();
						} else {
							this.showMessage("获取菜单失败")
						}
					}

				}).catch(error => {
					uni.hideLoading()
					this.showMessage(error)
				});
			}

		},
		onReady() {
			if (uni.getStorageSync("hasLogin")) {
				this.getMenuItemTop()
			}


		},
		onHide() {
			this.stopRefresh();
		},
		onShow() {
			if (uni.getStorageSync("hasLogin") == null || uni.getStorageSync("hasLogin") == false) {
				uni.showModal({
					title: '未登录',
					content: '您未登录 , 需要登录后才能继续', //如果需要强制登录，不显示取消按钮
					showCancel: !this.forcedLogin,
					success: (res) => {
						if (res.confirm) {
							//如果需要强制登录，使用reLanch方式
							if (this.forcedLogin) {
								uni.reLaunch({
									url: '../login/index'
								})
							} else {
								uni.navigateTo({
									url: '../login/index'
								})
							}
						}
					}
				})
			} else {
				this.timerRefresh();
			}
		},
		onUnload() {
			this.stopRefresh();
		},

		mounted() {},
		methods: {
			timerRefresh() {
				this.getMainMessage();
				this.stopRefresh();
				var that = this;
				this.timer = setInterval(function() {
					that.getMainMessage();
					console.log('刷新菜单');
				}, 1000 * 60)
			},
			stopRefresh() {
				if (this.timer) {
					clearInterval(this.timer);
					this.timer = null;
				}
			},
			getMainMessage() {
				getMainMessage().then(res => {
					this.menusCount = res.data;
					this.tabbar.forEach(item => {
						item.children.forEach(rightItem => {
							var count = this.menusCount[rightItem.component]
							if (count != undefined) {
								rightItem.count = count;
							}
						})
					})
					this.$forceUpdate()

				}).catch(res => {
					console.log("获取消息失败", res)
				});
			},

			findList(tab) {
				let res = null
				for (let i = 0; i < tab.length; i++) {
					if (tab[i].visible === true) {
						res = tab[i]
						return tab[i]
					} else if (tab[i].children && tab[i].children.length > 0) {
						res = findList(tab[i].children)
					}
					if (res) break
				}
				return res
			},
			// 点击左边的栏目切换
			async swichMenu(index) {
				if (this.arr.length == 0) {
					await this.getMenuItemTop();
				}
				if (index == this.current) return;
				this.scrollRightTop = this.oldScrollTop;
				this.$nextTick(function() {
					this.scrollRightTop = this.arr[index];
					this.current = index;
					this.leftMenuStatus(index);
				})
			},
			// 获取一个目标元素的高度
			getElRect(elClass, dataVal) {
				new Promise((resolve, reject) => {
					const query = uni.createSelectorQuery().in(this);
					query.select('.' + elClass).fields({
						size: true
					}, res => {
						// 如果节点尚未生成，res值为null，循环调用执行
						if (!res) {
							setTimeout(() => {
								this.getElRect(elClass);
							}, 10);
							return;
						}
						this[dataVal] = res.height;
						resolve();
					}).exec();
				})
			},
			// 观测元素相交状态
			async observer() {
				this.tabbar.map((val, index) => {
					let observer = uni.createIntersectionObserver(this);
					// 检测右边scroll-view的id为itemxx的元素与right-box的相交状态
					// 如果跟.right-box底部相交，就动态设置左边栏目的活动状态
					observer.relativeTo('.right-box', {
						top: 0
					}).observe('#item' + index, res => {
						if (res.intersectionRatio > 0) {
							let id = res.id.substring(4);
							this.leftMenuStatus(id);
						}
					})
				})
			},
			// 设置左边菜单的滚动状态
			async leftMenuStatus(index) {
				this.current = index;
				// 如果为0，意味着尚未初始化
				if (this.menuHeight == 0 || this.menuItemHeight == 0) {
					await this.getElRect('menu-scroll-view', 'menuHeight');
					await this.getElRect('u-tab-item', 'menuItemHeight');
				}
				// 将菜单活动item垂直居中
				this.scrollTop = index * this.menuItemHeight + this.menuItemHeight / 2 - this.menuHeight / 2;
			},
			// 获取右边菜单每个item到顶部的距离
			getMenuItemTop() {
				new Promise(resolve => {
					let selectorQuery = uni.createSelectorQuery();
					selectorQuery.selectAll('.class-item').boundingClientRect((rects) => {
						// 如果节点尚未生成，rects值为[](因为用selectAll，所以返回的是数组)，循环调用执行
						if (!rects.length) {
							setTimeout(() => {
								this.getMenuItemTop();
							}, 10);
							return;
						}
						rects.forEach((rect) => {
							// 这里减去rects[0].top，是因为第一项顶部可能不是贴到导航栏(比如有个搜索框的情况)
							this.arr.push(rect.top - rects[0].top);
							resolve();
						})
					}).exec()
				})
			},
			// 右边菜单滚动
			async rightScroll(e) {
				this.oldScrollTop = e.detail.scrollTop;
				if (this.arr.length == 0) {
					await this.getMenuItemTop();
				}
				if (this.timer) return;
				if (!this.menuHeight) {
					await this.getElRect('menu-scroll-view', 'menuHeight');
				}
				setTimeout(() => { // 节流
					this.timer = null;
					// scrollHeight为右边菜单垂直中点位置
					let scrollHeight = e.detail.scrollTop + this.menuHeight / 2;
					for (let i = 0; i < this.arr.length; i++) {
						let height1 = this.arr[i];
						let height2 = this.arr[i + 1];
						// 如果不存在height2，意味着数据循环已经到了最后一个，设置左边菜单为最后一项即可
						if (!height2 || scrollHeight >= height1 && scrollHeight < height2) {
							this.leftMenuStatus(i);
							return;
						}
					}
				}, 10)
			},
			getDictory() {
				var params = {
					types: ["job_status", "location_type", "item_status", "item_type", "uom",
						"inventory_status", "container_type", "pack_unit", "unplanned_receipt_reason",
						"unplanned_issue_reason", "scrap_reason", "inspect_failed_reason",
						"request_status", "inspect_type", "next_action", "sample_method", "transfer_mode",
						"count_stage", "inspect_result","area_type"
					]
				}
				getDictionaryItem(params).then(res => {
					if (res.data.length > 0) {
						uni.setStorageSync("dictionary", res.data)
					}
				}).catch(res => {
					console.log("获取字典失败", res)
				})


				var unitparams = {
					filters: [],
					pageNo: 1,
					pageSize: 100,
				}
				getPackageUnitList(unitparams).then(unitres => {
					if (unitres.data.list.length > 0) {
						uni.setStorageSync("packunit", unitres.data.list)
					}
				}).catch(res => {
					console.log("包装规格获取失败", res)
				})
			},

			openCheck(url) {
				uni.navigateTo({
					url: "/" + url
				});
				this.filterList = []
			},
			showMessage(message) {
				this.$refs.comMessage.showMessage(message, res => {
					if (res) {

					}
				});
			},
			search() {
				let that = this
				that.filterList = []
				that.nomore = false
				if (that.serchval.length !== 0) {
					this.tabbar.forEach((v) => {
						v.children.forEach((i) => {
							if (i.name.indexOf(that.serchval) !== -1) {
								// console.log("dddd", i)
								that.filterList.push(i)
							}
						})
					})
					if (that.filterList == 0) {
						that.nomore = true
					}
				}
			},
			clearfilterlist() {
				let that = this;
				that.filterList = [];
			},
			input(v) {
				console.log("222", v)
				this.serchval = v
				this.nomore = false
				if (this.serchval == "") {
					this.clearfilterlist()
				}
			},
		}
	}
</script>

<style lang="scss" scoped>
	.u-wrap {
		height: calc(100vh);
		/* #ifdef H5 */
		height: calc(100vh - var(--window-top));
		/* #endif */
		display: flex;
		flex-direction: column;
	}

	.u-search-box {
		padding: 18rpx 30rpx;
	}

	.u-menu-wrap {
		flex: 1;
		display: flex;
		overflow: hidden;
	}

	.u-search-inner {
		background-color: rgb(234, 234, 234);
		border-radius: 100rpx;
		display: flex;
		align-items: center;
		padding: 10rpx 16rpx;
	}

	.u-search-text {
		font-size: 26rpx;
		color: $u-tips-color;
		margin-left: 10rpx;
	}

	.u-tab-view {
		width: 180rpx;
		height: 100%;
	}

	.u-tab-item {
		height: 110rpx;
		background: #f6f6f6;
		box-sizing: border-box;
		display: flex;
		align-items: center;
		justify-content: center;
		font-size: 30rpx;
		color: #444;
		font-weight: 400;
		line-height: 1;
	}

	.u-tab-item-active {
		position: relative;
		color: #000;
		font-size: 30rpx;
		font-weight: 600;
		background: #fff;
	}

	.u-tab-item-active::before {
		content: "";
		position: absolute;
		border-left: 4px solid $u-type-primary;
		height: 32rpx;
		left: 0;
		top: 39rpx;
	}

	.u-tab-view {
		height: 100%;
	}

	.right-box {
		background-color: rgb(250, 250, 250);
	}

	.page-view {
		padding: 16rpx;
	}

	.class-item {
		margin-bottom: 30rpx;
		background-color: #fff;
		padding: 16rpx;
		border-radius: 8rpx;
	}

	.class-item:last-child {
		min-height: 100vh;
	}

	.item-title {
		font-size: 32rpx;
		color: $u-main-color;
		font-weight: bold;
	}

	.item-menu-name {
		font-weight: normal;
		font-size: 28rpx;
		color: $u-main-color;
		width: 120rpx;
		// word-wrap: break-word;
		// word-break: break-all;
		// white-space: pre-wrap;
	}

	.item-container {
		display: flex;
		flex-wrap: wrap;
	}

	.thumb-box {
		width: 33.333333%;
		display: flex;
		align-items: center;
		justify-content: center;
		flex-direction: column;
		margin-top: 20rpx;
		text-align: center;
	}

	.item-menu-image {
		width: 32px;
		height: 32px;
	}

	.item-menu-badge {
		width: 36rpx;
		height: 36rpx;
		align-items: center;
		// top: -5px;
		// right: -5px;
		font-size: 0.6rem;
		background-color: #fa3534;
		position: absolute;
		right: 0;
		color: #fff;
		text-align: center;
		line-height: 36rpx;
		border-radius: 50%;
	}

	.serch {
		width: 100%;
		display: flex;
		/* 	height: 130upx; */
		align-items: center;
	}

	.flex1 {
		flex: 1;
		font-size: 18px;
	}

	.menu {
		width: 100%;
	}

	.nomore {
		font-size: 30rpx;
		color: #666;
		text-align: center;
		align-items: center;
	}
</style>