<template>
	<view class="mobile-index">
		<view class="u-page upage">
			<!-- #ifdef MP-WEIXIN -->
			<Order ref="pageRef" :topLevel="topLevel" v-if="current===0" />
			<Equipment ref="pageRef" :topLevel="topLevel" v-if="current===1" />
			<Route ref="pageRef" :topLevel="topLevel" v-else-if="current===2" />
			<My ref="pageRef" :topLevel="topLevel" :isLogin="isLogin" @userLogOut="isLogin=''" v-else-if="current===3" />
			<!-- #endif -->
			<!-- #ifndef MP-WEIXIN -->
			<component ref="pageRef" :topLevel="topLevel" :is="refs[current]"
			:isLogin="isLogin" @userLogOut="isLogin=''"></component>
			<!-- #endif -->
		</view>
		<view class="navigation">
			<view @click="changeCurrent(index)" class="nav-item" v-for="(item,index) in navicationList" :key="index">
				<image :src="fileUrl+(current===index?item.select:item.icon)"></image>
			</view>
		</view>
		<Loading :show="loading" />
		<u-back-top :scrollTop="scrollTop" zIndex="100" :duration="500"
		:iconStyle="{ color: '#fff' }" :customStyle="{background: 'linear-gradient(180deg, #96fe11 0%, #f0fdbf 100%)',filter: 'opacity(0.96)'}"></u-back-top>
	</view>
</template>

<script>
import Order from '@/aircraft/server/order/order.vue';
import Equipment from '@/aircraft/server/equipment/equipment.vue';
import Route from '@/aircraft/server/route/route.vue';
import My from '@/aircraft/server/my/my.vue';
import configService from '@/common/config.service.js';
export default {
	components: {
		Order, Equipment, Route, My
	},
	data() {
		return {
			current: uni.getStorageSync('current')||0,// 当前页码下标
			loading: false,
			fileUrl: configService.fileUrl + 'pixel/navigation/',//导航栏图标基础路径
			// 导航栏按钮
			navicationList:[
				{
					name: '订单',
					icon: 'order.png',
					select: 'order-select.png'
				},
				{
					name: '设备',
					icon: 'equipment.png',
					select: 'equipment-select.png'
				},
				{
					name: '路线',
					icon: 'route.png',
					select: 'route-select.png'
				},
				{
					name: '我的',
					icon: 'my.png',
					select: 'my-select.png'
				}
			],
			topLevel: 0,// 页面是否滚动到顶
			// 滚动顶部
			scrollTop: 0,
			// refs组件列表
			refs: ['order','equipment','route','my'],
			// 登录状态
			isLogin: this.$store.state.vuex_token,
		}
	},
	onPageScroll(e) {
		const level = e.scrollTop/60;
		if(level<=1) this.topLevel = level;
		else this.topLevel = 1;
		this.scrollTop = e.scrollTop;
	},
	onLoad(){
		let index = uni.getStorageSync('current');
		this.current = index?index:0;
		this.isLogin = this.$store.state.vuex_token;
		this.changeCurrent(this.current);
	},
	onShow(){
		// 小程序除我的页，其它不要刷新
		let index = uni.getStorageSync('current');
		this.current = index?index:0;
		this.isLogin = this.$store.state.vuex_token;
		if(this.current === 3){
			this.changeCurrent(this.current);
		}
	},
	
	// 上拉刷新
	onPullDownRefresh(){
		try{
			this.changeCurrent(this.current);
		}catch(e){}
		finally{
			uni.stopPullDownRefresh();
		}
	},
	// 滑动到底部
	onReachBottom(){
	},
	methods:{
		// 切换页面
		changeCurrent(index){
			this.current = index;
			uni.setStorageSync('current',index);
			if(this.current === 1 && !this.isLogin){
				const url = '/aircraft/server/index/index';
				uni.navigateTo({
					url: `/aircraft/server/my/child_pages/login?nextUrl=${url}`
				});
				return;
			}
			this.$nextTick(()=>{
				this.$refs.pageRef.init();
			})
		},
	}
}
</script>

<style lang="scss" scoped>
.mobile-index{
	position: relative;
	// width: 100%;
	// min-height: 100vh;
	display: flex;
	justify-content: center;
	.upage{
		width: 100%;
	}
	.navigation{
		width: 80%;
		height: 128rpx;
		position: fixed;
		bottom: 15rpx;
		z-index: 85;
		display: flex;
		background-color: #ffffff;
		border-radius: 40rpx;
		justify-content: space-around;
		padding: 25rpx;
		align-items: center;
		background-size: cover;
		filter: drop-shadow(0 0 10rpx rgba(0,0,0,0.4));
		.nav-item{
			width: 54rpx;
			height: 85rpx;
			image{
				width: 100%;
				height: 100%;
			}
		}
	}
}
</style>