<template>
	<div class="xTable" :style="{ 'height': _height }" ref="xTableMain" v-loading="loading">
		<div class="xTable-table" :style="{ 'height': _table_height }">
			<el-table v-bind="$attrs" :data="tableData" :row-key="rowKey" @selection-change="getSelection" :key="toggleIndex" ref="xTable" :height="height == 'auto' ? null : '100%'" :size="config.size" :border="config.border" :stripe="config.stripe" :summary-method="remoteSummary ? remoteSummaryMethod : summaryMethod" @sort-change="sortChange" @filter-change="filterChange">
				<el-table-column v-if="isselection" type="selection" width="46" align="right"></el-table-column>
				<slot></slot>
				<template v-for="(item, index) in column" :key="index">
					<el-table-column :align="item.align || 'left'" :label="item.label" v-if="item.column && item.column.length > 0">
						<el-table-column v-for="(items, indexs) in item.column" :key="indexs" :align="items.align || 'left'" :column-key="items.prop || items.name" :label="items.label" :prop="items.prop || items.name" :width="items.width || 'auto'" :min-width="items.minWidth || 'auto'" :sortable="items.sortable" :fixed="items.fixed" :filters="items.filters" :filter-method="remoteFilter || !items.filters ? null : filterHandler" :show-overflow-tooltip="items.showOverflowTooltip">
							<template #default="{ row }">
								<columnItem :row="row" :item="items" @xtablehandleClick="xtablehandleClick" @xtablerefresh="refresh"> </columnItem>
							</template>
						</el-table-column>
					</el-table-column>
					<el-table-column v-else-if="!item.hide && (item.name || item.prop)" :align="item.align || 'left'" :column-key="item.prop || item.name" :label="item.label" :prop="item.prop || item.name" :width="item.width || 'auto'" :min-width="item.minWidth || 'auto'" :sortable="item.sortable" :fixed="item.fixed" :filters="item.filters" :filter-method="remoteFilter || !item.filters ? null : filterHandler" :show-overflow-tooltip="item.showOverflowTooltip">
						<template #default="{ row }">
							<columnItem :row="row" :item="item" @xtablehandleClick="xtablehandleClick" @xtablerefresh="refresh"> </columnItem>
						</template>
					</el-table-column>
				</template>
				<el-table-column min-width="1"></el-table-column>
				<template #empty>
					<el-empty v-if="loading" description="加载中~" :image="emptyImage" :image-size="200"></el-empty>
					<el-empty v-else :description="emptyText" :image-size="100"></el-empty>
				</template>
			</el-table>
		</div>
		<div class="xTable-page" v-if="total && (!hidePagination || !hideDo)">
			<el-row style="float: left;">
				<el-affix position="bottom" :offset="height == 'auto' ? 20 : 9" v-if="selection.length > 0 && batchoperation.length > 0" style="padding-right: 10px;z-index: 100;white-space: nowrap; overflow-wrap: normal;">
					<el-button v-for="(o, index) in batchoperation" :key="index" @click="operation(o)" :type="o.type || 'danger'" plain :icon="o.icon">{{ o.label || '删除' }} ( {{ selection.length }} )</el-button>
				</el-affix>
				<el-button v-if="isselection" @click="toggleAllSelection()">全选</el-button>
			</el-row>
			<el-pagination :pager-count="5" :small="true" background :layout="paginationLayout" :total="total" :page-size="scPageSize" :page-sizes="pageSizes" v-model:currentPage="currentPage" @current-change="paginationChange" @update:page-size="pageSizeChange"></el-pagination>
		</div>
	</div>
	<x-update v-if="tableUpdateKey" :column="column" :name="tableUpdateKey" ref="xtableupdate" @success="handleSuccess" @closed="tableUpdateKey = ''"></x-update>
	<x-stat v-if="tableStatKey" :name="tableStatKey" ref="xtablestat" @closed="tableStatKey = ''"></x-stat>
	<xTabledialog v-if="xtabledialog" :name="xtabledialog" ref="xtabledialog" v-model="xtabledialog" @closed="xtabledialog = ''"></xTabledialog>
</template>

<style scoped>
.xTable {}

.xTable-table {
	height: calc(100% - 45px);
}

.xTable-page {
	height: 45px;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 5px 0 10px;
	width: 100%;
}


.xTable-do {
	white-space: nowrap;
}

.xTable:deep(.el-table__footer) .cell {
	font-weight: bold;
}

.xTable:deep(.el-table__body-wrapper) .el-scrollbar__bar.is-horizontal {
	height: 12px;
	border-radius: 12px;
}

.xTable:deep(.el-table__body-wrapper) .el-scrollbar__bar.is-vertical {
	width: 12px;
	border-radius: 12px;
}

@media (max-width: 1200px) {
	.xTable-page:deep(.el-pagination__sizes) {
		display: none;
	}

	.xTable-page:deep(.el-pagination__jump) {
		display: none;
	}
}
</style>

<script>
import config from "@/config/table";
import columnSetting from './columnSetting'
import columnItem from './columnItem'

export default {
	name: 'xTable',
	components: {
		columnSetting,
		columnItem,
	},
	props: {
		name: { type: String, default: "" },
		tableColumn: { type: Object, default: () => { } },
		api: { type: String, default: () => { } },
		apiObj: { type: Object, default: () => { } },
		params: { type: Object, default: () => ({}) },
		batchoperation: { type: Array, default: () => ([]) },
		data: { type: Object, default: () => { } },
		height: { type: [String, Number], default: "100%" },
		size: { type: String, default: "default" },
		border: { type: Boolean, default: false },
		isselection: { type: String, default: "" },
		stripe: { type: Boolean, default: false },
		columnSetting: { type: Boolean, default: false },
		pageSize: { type: Number, default: config.pageSize },
		pageSizes: { type: Array, default: config.pageSizes },
		rowKey: { type: String, default: "" },
		summaryMethod: { type: Function, default: null },
		remoteSort: { type: Boolean, default: false },
		remoteFilter: { type: Boolean, default: false },
		remoteSummary: { type: Boolean, default: false },
		hidePagination: { type: Boolean, default: false },
		hideDo: { type: Boolean, default: false },
		hideRefresh: { type: Boolean, default: false },
		hideSetting: { type: Boolean, default: false },
		paginationLayout: { type: String, default: config.paginationLayout },
	},
	watch: {

		//监听从props里拿到值了
		data() {
			this.tableData = this.data;
			this.total = this.tableData.length;
		},
		apiObj() {
			this.tableParams = this.params;
			this.refresh();
		},
		api() {
			this.tableParams = this.params;
			this.refresh();
		},
		tableColumn() {
			this.column = this.tableColumn;
		}
	},
	computed: {
		_height() {
			return Number(this.height) ? Number(this.height) + 'px' : this.height
		},
		_table_height() {
			return this.hidePagination && this.hideDo ? "100%" : "calc(100% - 45px)"
		}
	},
	data() {
		return {
			scPageSize: this.pageSize,
			emptyImage: require('@/assets/img/ver.svg'),
			isActivat: true,
			emptyText: "暂无数据",
			toggleIndex: 0,
			tableData: [],
			total: 0,
			currentPage: 1,
			prop: null,
			order: null,
			loading: false,
			visible: false,
			tableHeight: '100%',
			tableParams: this.params,
			column: [],
			selection: [],
			customColumnShow: false,
			tableUpdateKey: '',
			xtabledialog: '',
			tableStatKey: '',
			summary: {},
			visibleInfo: {},
			config: {
				size: this.size,
				border: this.border,
				stripe: this.stripe
			},
		}
	},
	mounted() {
		this.column = this.tableColumn
		//判断是否静态数据
		if (this.apiObj || this.api) {
			this.getData();
		} else if (this.data) {
			this.tableData = this.data;
			this.total = this.tableData.length
		}
	},
	activated() {
		if (!this.isActivat) {
			this.$refs.xTable.doLayout()
		}
	},
	deactivated() {
		this.isActivat = false;
	},
	methods: {

		//编辑弹窗,成功后本地更新数据
		handleSuccess(data, message) {
			if (data && this.rowKey && data[this.rowKey]) {
				this.tableData.filter(item => item[this.rowKey] === data[this.rowKey]).forEach(item => {
					Object.assign(item, data)
				})
			} else {
				this.refresh()
			}
			this.$message.success(message || "操作成功")
			return;
		},

		//批量删除
		async operation(o) {

			if (this.selection.length == 0) {
				this.$alert('请勾选你要' + (o.label || '操作') + '的项目', "提示", { type: 'error' });
				return;
			}


			// 批量编辑
			if (o.operationtype && o.operationtype == 'update') {

				const options = o.bind || o.options || {};

				this.tableUpdateKey = options.key || this.rowKey;

				const ids = this.selection.map(obj => obj[this.tableUpdateKey]);
				const row =  Object.assign({}, this.selection[0]);
				const componenttype = options.type || 'dialog';

				row[this.tableUpdateKey] = ids;

				this.$nextTick(() => {
					this.$refs.xtableupdate.open().getComponentType(componenttype).setToken(ids).setData(row).setConfig(options);
				})
				return;
			}


			if (!o.url) {
				this.$alert('没有批量' + (o.label || '操作') + '相关配置', "提示", { type: 'error' });
				return;
			}

			this.$confirm(`确定${o.label}选中的 ${this.selection.length} 项吗？`, '提示', {
				type: 'warning'
			}).then(() => {
				const delkey = o.key || this.rowKey;
				const ids = this.selection.map(obj => obj[delkey]);
				this.$http.post(o.url, { [delkey]: ids }).then((res) => {
					if (res.code == 200) {
						this.refresh();
						this.$message.success(res.message || "操作成功")
						return;
					}
					this.$alert(res.message, "提示", { type: 'error' });
					this.$loading.close();
				})
			}).catch(() => {

			})
		},

		getSelection(val) {
			this.selection = val;
		},
		xtablehandleClick(row, options, type = 'update') {
			var componenttype = options.type || 'dialog';
			if (type == 'update') {
				this.tableUpdateKey = options.name || this.name || this.rowKey;
				this.$nextTick(() => {
					this.$refs.xtableupdate.open().getComponentType(componenttype).setData(row).setConfig(options);
				})
				return;
			}
			else if (type == 'stat') {
				this.tableStatKey = options.value || this.name || this.rowKey;
				this.$nextTick(() => {
					this.$refs.xtablestat.open().setData(row).setConfig(options);
				})
				return;
			}
			this.xtabledialog = options.name || this.name || this.rowKey;
			this.$nextTick(() => {
				this.$refs.xtabledialog.open().setData(row).getComponentType(componenttype).setConfig(options);
			})
		},
		//获取数据
		async getData(scrollto = true) {
			var reqData = {
				[config.request.page]: this.currentPage,
				[config.request.pageSize]: this.scPageSize,
				[config.request.prop]: this.prop,
				[config.request.order]: this.order
			}

			if (this.hidePagination) {
				delete reqData[config.request.page]
				delete reqData[config.request.pageSize]
			}
			Object.assign(reqData, this.tableParams)

			if (scrollto === true) {
				this.loading = true;
				let detailsArea = document.querySelector(".xdetailsarea");
				if (detailsArea) {
					detailsArea.scrollTo({ top: 0 });
				}
			}

			try {
				var xawait = this.api ? this.$http.get(this.api, reqData) : this.apiObj(reqData);
				xawait.then((res) => {
					try {
						var response = config.parseData(res);
					} catch (error) {
						this.loading = false;
						this.emptyText = "数据格式错误";
						return false;
					}


					if (response.code != config.successCode) {
						this.loading = false;
						this.emptyText = response.message;
					} else {
						this.emptyText = "暂无数据";
						this.tableData = (this.hidePagination ? response.data : response.rows) || [];
						this.total = response.total || 0;
						this.summary = response.summary || {};
						this.loading = false;
					}
					if (this.$refs.xTable) {
						this.$refs.xTable.setScrollTop(0)
					}
					// 回调
					this.$emit('dataChange', res, this.tableData)
				});

			} catch (error) {
				this.loading = false;
				this.emptyText = error.statusText;
				return false;
			}
		},
		//分页点击
		paginationChange() {
			this.getData();
		},
		//条数变化
		pageSizeChange(size) {
			this.scPageSize = size
			this.getData();
		},
		//刷新数据
		refresh() {
			this.$refs.xTable.clearSelection();
			this.getData(false);
		},
		//更新数据 合并上一次params
		upData(params, page = 1) {
			this.currentPage = page;
			this.$refs.xTable.clearSelection();
			Object.assign(this.tableParams, params || {})
			this.getData()
		},
		//重载数据 替换params
		reload(params, page = 1) {
			this.currentPage = page;
			this.tableData = [];
			this.tableParams = params || {}
			this.$refs.xTable.clearSelection();
			this.$refs.xTable.clearSort()
			this.$refs.xTable.clearFilter()
			this.getData()
		},
		//自定义变化事件
		columnSettingChange(column) {
			this.column = column;
			this.toggleIndex += 1;
		},
		//自定义列保存
		async columnSettingSave(column) {
			this.$refs.columnSetting.isSave = true
			try {
				await config.columnSettingSave(this.name, column)
				this.$message.success('保存成功')
				this.$refs.columnSetting.isSave = false
			} catch (error) {
				this.$message.error('保存失败')
				this.$refs.columnSetting.isSave = false
			}

		},
		//自定义列重置
		async columnSettingBack() {
			this.$refs.columnSetting.isSave = true
			try {
				await config.columnSettingReset(this.name, this.column)
				this.$refs.columnSetting.column = JSON.parse(JSON.stringify(this.column || []))
			} catch (error) {
				this.$message.error('重置失败')
				this.$refs.columnSetting.isSave = false
			}
			this.$refs.columnSetting.isSave = false
		},
		//排序事件
		sortChange(obj) {
			if (!this.remoteSort) {
				return false
			}

			if (obj.prop) {
				this.prop = obj.prop
				this.order = obj.order
			} else {
				this.prop = null
				this.order = null
			}
			this.getData()
		},
		//本地过滤
		filterHandler(value, row, column) {
			const property = column.property;
			return row[property] === value;
		},
		//过滤事件
		filterChange(filters) {
			if (!this.remoteFilter) {
				return false
			}
			Object.keys(filters).forEach(key => {
				filters[key] = filters[key].join(',')
			})
			this.upData(filters)
		},
		//远程合计行处理
		remoteSummaryMethod(param) {
			const { columns } = param
			const sums = []
			columns.forEach((column, index) => {
				if (index === 0) {
					sums[index] = '合计'
					return
				}
				const values = this.summary[column.property]
				if (values) {
					sums[index] = values
				} else {
					sums[index] = ''
				}
			})
			return sums
		},
		configSizeChange() {
			this.$refs.xTable.doLayout()
		},
		//插入行 unshiftRow
		unshiftRow(row) {
			this.tableData.unshift(row)
		},
		//插入行 pushRow
		pushRow(row) {
			this.tableData.push(row)
		},
		//根据key覆盖数据
		updateKey(row, rowKey = this.rowKey) {
			this.tableData.filter(item => item[rowKey] === row[rowKey]).forEach(item => {
				Object.assign(item, row)
			})
		},
		//根据index覆盖数据
		updateIndex(row, index) {
			Object.assign(this.tableData[index], row)
		},
		//根据index删除
		removeIndex(index) {
			this.tableData.splice(index, 1)
		},
		//根据index批量删除
		removeIndexes(indexes = []) {
			indexes.forEach(index => {
				this.tableData.splice(index, 1)
			})
		},
		//根据key删除
		removeKey(key, rowKey = this.rowKey) {
			this.tableData.splice(this.tableData.findIndex(item => item[rowKey] === key), 1)
		},
		//根据keys批量删除
		removeKeys(keys = [], rowKey = this.rowKey) {
			keys.forEach(key => {
				this.tableData.splice(this.tableData.findIndex(item => item[rowKey] === key), 1)
			})
		},
		//原生方法转发
		clearSelection() {
			this.$refs.xTable.clearSelection()
		},
		toggleRowSelection(row, selected) {
			this.$refs.xTable.toggleRowSelection(row, selected)
		},
		toggleAllSelection() {
			this.$refs.xTable.toggleAllSelection()
		},
		toggleRowExpansion(row, expanded) {
			this.$refs.xTable.toggleRowExpansion(row, expanded)
		},
		setCurrentRow(row) {
			this.$refs.xTable.setCurrentRow(row)
		},
		clearSort() {
			this.$refs.xTable.clearSort()
		},
		clearFilter(columnKey) {
			this.$refs.xTable.clearFilter(columnKey)
		},
		doLayout() {
			this.$refs.xTable.doLayout()
		},
		sort(prop, order) {
			this.$refs.xTable.sort(prop, order)
		}
	}
}
</script>
