/**
 * 订单列表业务逻辑
 */
import { reactive, ref, watch,nextTick, onMounted } from "vue";
import {request} from "@/utils/network/request.js";
import { stringToJson } from "@/utils/network/encryption";
import {onLoad,onUnload,onReachBottom,onPullDownRefresh} from "@dcloudio/uni-app";
import { getItem, StorageKeys } from "@/utils/storage";
import { hasLogin, msg } from "@/utils/utils";
import { orderList } from "@/utils/network/api";
import {PageData} from "@/datas/enum";

export default function useOrderListItem(props) {
  //搜索关键字
  const searchKeyWords = ref('');
  
  //订单列表数据
  const ordersList = ref([]);
  
  const config = {
	  emptyHint:{
		hint:'~ 暂无订单数据 ~',
		icon:'',
		mode:'order'
	  },
	  contentTxt:{
		  contentdown: '~上拉加载更多~',
		  contentrefresh: '努力加载中...',
		  contentnomore: '-- 我是有底线的 --' 
	  }
  }
  
  //请求参数
  const params = reactive({
	  pageNum: PageData.NUM,
	  pageSize:PageData.SIZE,
	  total: 0,
	  status: 'more',
	  reload: false,
  })
  
  //搜索
  const doSearch = () => {
  	if(!searchKeyWords.value){
  		msg('请输入需要搜索的车牌号！');
  		return;
  	}
	refreshList(true);
  }
  
  //订单车牌号输入
  const onKeyInput = (event) =>{
  	searchKeyWords.value = event.target.value;
  	if(searchKeyWords.value == ''){
  		refreshList(true);
  	}
  }

  /* 刷新列表 */
  const refreshList = (isLoading) =>{
	  params.pageNum = 1;
	  params.total = 0;
	  params.status = 'more';
	  params.reload = false;
	  getList();
  }
  
  /* 加载更多 */
  const loadMore = () =>{
	  if(params.total > ordersList.value.length){
		  params.status = 'loading';
		  params.pageNum++;
		  getList();
	  }else{
		  params.status = 'noMore';
	  }
  }
  
  /* 获取列表数据 */
  const getList = async(isLoading = true) =>{
	  if(!hasLogin()){ 
		  uni.stopPullDownRefresh();
		  uni.$emit('refreshFinish');
		  return;  
	  }
	    
	  let res: any = null;
	  const options = {
	  	type:2,
	  	data:{
	  		"opId": getItem(StorageKeys.OpenId),
	  		"source":"WECHAT",
	  		"vehiclePlate":searchKeyWords.value,
	  		"tabIndex":props.index + '', 
	  		"pageNo":params.pageNum,
	  		"pageSize":params.pageSize
	  	},
	  	method:'POST',
	  	showLoading: isLoading ? (params.pageNum === 1 ? true : false) : false ,
	  }
	  
	  try{
			res = await request(orderList,options);
			const data = stringToJson(res.bizContent);
			params.total = data.totalCount;
			
			if(params.pageNum === 1){
				ordersList.value = [];
			}
			if(params.total > 0){
			   const curList = data.data || [];
			   ordersList.value = params.reload ? curList : ordersList.value.concat(curList);
			   params.reload = false;
			}
			
			if(params.total === ordersList.value.length){
			  params.reload = false;
			  params.status = 'noMore';
			}
			
			if(params.pageNum === 1){
				uni.stopPullDownRefresh();
			}
			uni.$emit('refreshFinish');
	  }catch(e){
	  	uni.stopPullDownRefresh();
		uni.$emit('refreshFinish');
	  }
  }
  
  watch(()=>props.index,()=>{
	  refreshList(true);
  });
  watch(()=>props.refresh,(nv)=>{
	  if(nv){
		  refreshList(false);
	  }
  });
  onMounted(()=>{
	  if(props.refresh){
		   refreshList(false);
	  }
  })
  onPullDownRefresh(()=>{
	 refreshList(true);
  });
  
  onReachBottom(()=>{
	  loadMore();
  });
  
  return {
	config,
	params,
	ordersList,
	doSearch,
	onKeyInput
  };
}