<template>
    <!-- 表格内容 card -->
    <div :class="!isBoxClass ? '' : 'card table-main'">
        <!-- 查询表单 card -->
        <!-- <SearchForm
            v-show="isShowSearch"
            :search="search"
            :reset="reset"
            :formData="formData"
            :search-param="searchParam"
            :search-col="searchCol"
        /> -->
        <slot name="search"></slot>
        <!-- 表格头部 操作按钮 -->
        <div class="table-header">
            <div class="header-button-lf">
                <slot
                    name="tableHeader"
                    :selected-list-ids="selectedListIds"
                    :selected-list="selectedList"
                    :is-selected="isSelected"
                />
            </div>
        </div>
        <!-- 表格主体 -->
        <el-table
            ref="tableRef"
            v-bind="$attrs"
            :data="data ?? tableData"
            :border="border"
            :row-key="
                row => {
                    return routeName === 'boxCode' || routeName === 'boxMarkIndex' ? row.detailId + '' + row.id : row.id;
                }
            "
            @selection-change="selectionChange"
            :style="!isBoxClass ? 'height: 400px; overflow-y: auto' : ''"
        >
            <!-- 默认插槽 -->
            <slot></slot>
            <template v-for="item in tableColumns" :key="item">
                <!-- selection || index || expand -->
                <el-table-column
                    v-if="item.type && ['selection', 'index', 'expand'].includes(item.type)"
                    v-bind="item"
                    :align="item.align ?? 'center'"
                    :reserve-selection="item.type == 'selection'"
                >
                    <template v-if="item.type == 'expand'" #default="scope">
                        <component :is="item.render" v-bind="scope" v-if="item.render"> </component>
                        <slot v-else :name="item.type" v-bind="scope"></slot>
                    </template>
                </el-table-column>
                <!-- other -->
                <TableColumn v-if="!item.type && item.prop && item.isShow" :column="item">
                    <template v-for="slot in Object.keys($slots)" #[slot]="scope">
                        <slot :name="slot" v-bind="scope"></slot>
                    </template>
                </TableColumn>
            </template>
            <!-- 插入表格最后一行之后的插槽 -->
            <template #append>
                <slot name="append"> </slot>
            </template>
            <!-- 无数据 -->
            <template #empty>
                <div class="table-empty">
                    <slot name="empty">
                        <img src="@/assets/images/notData.png" alt="notData" />
                        <div>暂无数据</div>
                    </slot>
                </div>
            </template>
        </el-table>
        <!-- 分页组件 -->
        <slot name="pagination">
            <Pagination
                v-if="pagination"
                :pageable="pageable"
                :handle-size-change="handleSizeChange"
                :handle-current-change="handleCurrentChange"
                :length="selectedList.length"
                :sizes="sizes"
            />
        </slot>
    </div>
    <!-- 列设置 -->
    <ColSetting v-if="toolButton" ref="colRef" v-model:col-setting="colSetting" />
</template>

<script setup lang="ts" name="ProTable">
// import SearchForm from "@/components/SearchForm/index.vue";
// /watch
import { ref, provide, onMounted, toRef } from "vue";
import { ElTable } from "element-plus";
import { useTable } from "@/hooks/useTable";
import { useSelection } from "@/hooks/useSelection";
// import { BreakPoint } from "@/components/Grid/interface";
import { ColumnProps } from "@/components/ProTable/interface";
// import SearchForm from "@/components/SearchForm/index.vue";
import Pagination from "./components/Pagination.vue";
import ColSetting from "./components/ColSetting.vue";
import TableColumn from "./components/TableColumn.vue";
const $router = useRouter();
const routeName: any = ref($router.currentRoute.value.name);
export interface ProTableProps {
    columns: ColumnProps[]; // 列配置项  ==> 必传
    // formData?: any[];
    isBoxClass?: boolean;
    data?: any[]; // 静态 table data 数据，若存在则不会使用 requestApi 返回的 data ==> 非必传
    requestApi?: (params: any) => Promise<any>; // Promise<any>; // 请求表格数据的 api ==> 非必传
    requestAuto?: boolean; // 是否自动执行请求 api ==> 非必传（默认为true）
    requestError?: (params: any) => void; // 表格 api 请求错误监听 ==> 非必传
    dataCallback?: (data: any) => any; // 返回数据的回调函数，可以对数据进行处理 ==> 非必传
    title?: string; // 表格标题，目前只在打印的时候用到 ==> 非必传
    pagination?: boolean; // 是否需要分页组件 ==> 非必传（默认为true）
    initParam?: any; // 初始化请求参数 ==> 非必传（默认为{}）
    orgCode?: any; //组织ID,组织id改变时，重新请求数据
    border?: boolean; // 是否带有纵向边框 ==> 非必传（默认为true）
    toolButton?: boolean; // 是否显示表格功能按钮 ==> 非必传（默认为true）
    rowKey?: string; // 行数据的 Key，用来优化 Table 的渲染，当表格数据多选时，所指定的 id ==> 非必传（默认为 id）
    //  searchCol?: number | Record<BreakPoint, number>; // 表格搜索项 每列占比配置 ==> 非必传 { xs: 1, sm: 2, md: 2, lg: 3, xl: 4 }
    sizes?: any;
}

// 接受父组件参数，配置默认值
const props = withDefaults(defineProps<ProTableProps>(), {
    formData: () => [],
    columns: () => [],
    requestAuto: true,
    pagination: true,
    initParam: {},
    isBoxClass: true,
    border: true,
    toolButton: true,
    // rowKey: `id${index}`,
    // searchCol: () => ({ xs: 1, sm: 2, md: 2, lg: 3, xl: 4 }),
    sizes: [50, 100, 150, 200]
});

// 是否显示搜索模块
// const isShowSearch = ref(true);
// 表格 DOM 元素
const tableRef = ref<InstanceType<typeof ElTable>>();
const newValInitParams = toRef(props, "initParam");
// 表格多选 Hooks
const { selectionChange, selectedList, selectedListIds, isSelected } = useSelection(props.rowKey);

// 清空选中数据列表
const clearSelection = () => tableRef.value!.clearSelection();
// 表格操作 Hooks
const { tableData, pageable, getTableList, handleSizeChange, handleCurrentChange } = useTable(
    routeName.value,
    props.requestApi,
    newValInitParams,
    props.pagination,
    props.requestError,
    clearSelection
);
// 初始化请求
onMounted(() => props.requestAuto && getTableList());

// 接收 columns 并设置为响应式
const tableColumns = ref<ColumnProps[]>(props.columns);

// 定义 enumMap 存储 enum 值（避免异步请求无法格式化单元格内容 || 无法填充搜索下拉选择）
const enumMap = ref(new Map<string, { [key: string]: any }[]>());
provide("enumMap", enumMap);
const setEnumMap = async (col: ColumnProps) => {
    if (!col.enum) return;
    // 如果当前 enum 为后台数据需要请求数据，则调用该请求接口，并存储到 enumMap
    if (typeof col.enum !== "function") return enumMap.value.set(col.prop!, col.enum!);
    const { data } = await col.enum();
    enumMap.value.set(col.prop!, data);
};

// 扁平化 columns
const flatColumnsFunc = (columns: ColumnProps[], flatArr: ColumnProps[] = []) => {
    columns.forEach(async col => {
        if (col._children?.length) flatArr.push(...flatColumnsFunc(col._children));
        flatArr.push(col);

        // 给每一项 column 添加 isShow && isFilterEnum 默认属性
        col.isShow = col.isShow ?? true;
        col.isFilterEnum = col.isFilterEnum ?? true;

        // 设置 enumMap
        setEnumMap(col);
    });
    return flatArr.filter(item => !item._children?.length);
};

// flatColumns
const flatColumns = ref<ColumnProps[]>();
flatColumns.value = flatColumnsFunc(tableColumns.value);

// 列设置 ==> 过滤掉不需要设置的列
const colRef = ref();
const colSetting = tableColumns.value!.filter(
    item => !["selection", "index", "expand"].includes(item.type!) && item.prop !== "operation" && item.isShow
);

// 暴露给父组件的参数和方法(外部需要什么，都可以从这里暴露出去)
defineExpose({
    element: tableRef,
    tableData,
    pageable,
    getTableList,
    handleSizeChange,
    handleCurrentChange,
    clearSelection,
    enumMap,
    isSelected,
    selectedList,
    selectedListIds
});
</script>
