<template>
	<view>
		<!--#ifdef APP-PLUS-->
		<view class="lz-status_bar">
			<view class="lz-top_view"></view>
		</view>
		<!--#endif-->
		<!-- #ifndef MP-WEIXIN -->
		<view class="kaoshi-head">
			<view class="kaoshi-head-top">
				<view class="kaoshi-head-left" @tap="$navigateBack">
					<view class="iconfont icon-zuojiantou"></view>
				</view>
				<view class="kaoshi-head-m">题库错题</view>
			</view>
		</view>
		<!--#endif-->
		<view class="white-background">
			<wuc-tab :tab-list="order_sort" :tabCur="current_index" @change="tabChange"
				tab-class="text-black bg-white list_top" select-class="text-blue text-xl"></wuc-tab>
		</view>
		<view class="index-content">
			<view class="index-tiku">
				<mescroll-body ref="mescrollRef" @init="mescrollInit" @down="downCallback" @up="upCallback"
					:down="downOption" :up="upOption">
					<block v-for="(item, index) in list" :key="index">
						<view class="index-tiku-content"
							@tap="$openrul('/pages/my/wrongQuestion/detail?id=' + item.id + '&from_type=' + current_id)">
							<view class="pub-flex-1">
								<view class="index-tiku-content-flex">
									<view class="index-tiku-content-top">
										<view>{{current_id == 1 ? item.unit_name : item.library_name}}</view>
										<view class="error_num">错{{item.error_num}}题</view>
									</view>
								</view>
								<view class="index-tiku-content-flex">
									<view class="index-tiku-content-bottom">
										<view>来源:{{current_id == 1 ? '章节练习' : '真题练习'}}
										</view>
									</view>
								</view>
							</view>
							<view class="iconfont icon-arrow"></view>
						</view>
					</block>
				</mescroll-body>
			</view>
		</view>
	</view>
</template>
<script>
	import MescrollMixin from "@/components/mescroll-uni/mescroll-mixins.js";
	import {
		mapState
	} from 'vuex'
	import WucTab from '@/components/wuc-tab/wuc-tab.vue';

	export default {
		mixins: [MescrollMixin], // 使用mixin
		data() {
			return {
				mescroll: null, // mescroll实例对象 (此行可删,mixins已默认)
				// 下拉刷新的配置(可选, 绝大部分情况无需配置)
				downOption: {
					use: false, // 是否启用下拉刷新; 默认true
					auto: false, // 是否在初始化完毕之后自动执行下拉刷新的回调; 默认true
					native: false // 启用系统自带的下拉组件,默认false;仅mescroll-body生效,mescroll-uni无效(native: true, 则需在pages.json中配置"enablePullDownRefresh":true)
				},
				// 上拉加载的配置(可选, 绝大部分情况无需配置)
				upOption: {
					page: {
						num: 0,
						size: 10 // 每页数据的数量,默认10
					},
					noMoreSize: 5, // 配置列表的总数量要大于等于5条才显示'-- END --'的提示
					empty: {
						tip: '暂无相关数据'
					}
				},
				// 列表数据
				list: [],

				order_sort: [{
						name: '章节练习',
						goods_type: '1'
					},
					{
						name: '真题练习',
						goods_type: '2'
					}
				],
				current_id: '1',
				current_index: 0,
			}
		},
		onShow() {
			this.canReset && this.mescroll.resetUpScroll()
			this.canReset = true
		},
		onLoad(opts) {
			this.pages_params = opts
		},
		mounted() {},
		computed: {
			...mapState(['subject'])
		},
		components: {
			WucTab,
		},
		methods: {
			/*上拉加载的回调*/
			async upCallback(page) {
				let pageNum = page.num; // 页码, 默认从1开始
				let pageSize = page.size; // 页长, 默认每页10条
				let url

				if (this.current_id == 1) {
					//章节练习
					url = this.$myHttp.urlMap.wrongQuestion
				} else if (this.current_id == 2) {
					// 历年真题
					url = this.$myHttp.urlMap.zhenti_wrongQuestion
				}
				let res = await this.$myHttp.post({
					url: url,
					data: {
						subject_id: this.subject.id,
						page: pageNum,
						limit: pageSize
					},
					needLogin: true
				})
				if (res.code == 1) {
					// 接口返回的当前页数据列表 (数组)
					let curPageData = res.data.data;
					// 接口返回的当前页数据长度 (如列表有26个数据,当前页返回8个,则curPageLen=8)
					let curPageLen = curPageData.length;
					// 接口返回的总页数 (如列表有26个数据,每页10条,共3页; 则totalPage=3)
					// let totalPage = data.xxx;
					// 接口返回的总数据量(如列表有26个数据,每页10条,共3页; 则totalSize=26)
					let totalSize = res.data.total;

					this.mescroll.endBySize(curPageLen, totalSize);
					if (page.num == 1) this.list = []; //如果是第一页需手动置空列表
					this.list = this.list.concat(curPageData); //追加新数据
				} else {
					this.mescroll.endErr()
				}
				// 此处仍可以继续写其他接口请求...
				// 调用其他方法...
			},
			tabChange(index) {
				this.list = []
				this.current_index = index;
				this.current_id = this.order_sort[index].goods_type;
				this.mescroll.resetUpScroll(false)
			}
		}
	}
</script>
<style>
	page {
		background: #f6f7f9;
	}

	.index-content {
		width: 100%;
		margin: 0 auto;
		display: flex;
		flex-direction: column;
		background: #fff;
	}

	.index-tiku-content {
		width: 92%;
		margin: 0 auto;
		display: flex;
		flex-direction: row;
		align-items: center;
		font-size: 16px;
		padding: 14px 0;
		border-bottom: solid 1px #f5f5f5;
		justify-content: space-between;
	}

	.index-tiku-content-flex {
		width: 100%;
		display: flex;
		justify-content: space-between;
		align-items: center;
	}

	.index-tiku-content .icon-arrow {
		padding-left: 13px;
		color: #b3b3b3;
	}

	.index-tiku-content .index-tiku-content-flex:first-child {
		padding-bottom: 6px;
	}

	.index-tiku-content .index-tiku-content-flex:last-child {
		font-size: 14px;
		color: #d0d0d0;
	}

	.index-tiku-content-top {
		display: flex;
		align-items: center;
	}

	.index-tiku-content-top img {
		width: 20px;
		height: 22px;
		margin-right: 10px;
	}

	.index-tiku-content-bottom {
		display: flex;
		align-items: flex-start;
		flex-direction: column;
	}

	.error_num {
		background: #ececec;
		color: #3c7bfc;
		padding: 2px 10px;
		font-size: 12px;
		margin-left: 8px;
		border-radius: 14px 14px 14px 0;
		word-break: keep-all;
	}

	.zhenti-title {
		font-size: 16px;
		color: #000;
	}
</style>
