import { ref, unref } from "vue";
import { onReachBottom, onPullDownRefresh } from "@dcloudio/uni-app";

/**
 * usePageData页面公共方法
 *
 * @param options
 */
interface AgmsTs {
	[propName : string] : any;
}
export function usePageData(ApiFn : Function, agms : AgmsTs) {
	const LoadStatus = ref<'loadmore' | 'loading' | 'nomore' | ''>(''); // 加载状态
	const RowsList = ref<any[]>([]); // 列表数据
	const params = ref<any>(null); // 请求参数
	const Pages = ref({
		pageNum: 1,
		pageSize: 10
	})
	const Total = ref(0);
	const initData = (p) => {
		params.value = p;
		Pages.value.pageNum = 0;
		getLsit()
	};


	const getLsit = async () => {
		if (LoadStatus.value === 'loading') return
		try {
			Pages.value.pageNum += 1;
			if (unref(Pages).pageNum === 1) {
				RowsList.value = []
			}
			LoadStatus.value = 'loading';
			const P_ = {
				...unref(Pages),
				...(unref(params) || {})
			};
			const { rows, total } = await ApiFn(P_);
			RowsList.value = RowsList.value.concat(rows || []);
			Total.value = total;
			uni.stopPullDownRefresh();
			if (unref(RowsList).length < total) {
				LoadStatus.value = 'loadmore';
			} else {
				LoadStatus.value = 'nomore';
			}
		} catch (error) {
			uni.stopPullDownRefresh();
			LoadStatus.value = 'nomore';
		}
	}


	onReachBottom(() => {
		if (LoadStatus.value === 'loadmore') getLsit();
	})

	onPullDownRefresh(() => {
		initData(params.value);
	})

	return {
		initData,
		LoadStatus,
		RowsList,
		Total
	}
}