feat(excel): import/export (#40)

src/components/Excel/index.ts

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+export { default as ImportExcel } from './src/ImportExcel';
+export { default as ExportExcelModel } from './src/ExportExcelModel.vue';
+
+export { jsonToSheetXlsx, aoaToSheetXlsx } from './src/Export2Excel';
+
+export * from './src/types';

src/components/Excel/src/Export2Excel.ts

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+import xlsx from 'xlsx';
+import type { WorkBook } from 'xlsx';
+import type { JsonToSheet, AoAToSheet } from './types';
+// import { isObject } from '@/src/utils/is';
+
+const { utils, writeFile } = xlsx;
+
+export function jsonToSheetXlsx<T = any>({
+  data,
+  header,
+  filename = 'excel-list.xlsx',
+  json2sheetOpts = {},
+  write2excelOpts = { bookType: 'xlsx' },
+}: JsonToSheet<T>) {
+  const arrData = [...data];
+  if (header) {
+    arrData.unshift(header);
+    json2sheetOpts.skipHeader = true;
+  }
+
+  const worksheet = utils.json_to_sheet(arrData, json2sheetOpts);
+
+  /* add worksheet to workbook */
+  const workbook: WorkBook = {
+    SheetNames: [filename],
+    Sheets: {
+      [filename]: worksheet,
+    },
+  };
+  /* output format determined by filename */
+  writeFile(workbook, filename, write2excelOpts);
+  /* at this point, out.xlsb will have been downloaded */
+}
+export function aoaToSheetXlsx<T = any>({
+  data,
+  header,
+  filename = 'excel-list.xlsx',
+  write2excelOpts = { bookType: 'xlsx' },
+}: AoAToSheet<T>) {
+  const arrData = [...data];
+  if (header) {
+    arrData.unshift(header);
+  }
+
+  const worksheet = utils.aoa_to_sheet(arrData);
+
+  /* add worksheet to workbook */
+  const workbook: WorkBook = {
+    SheetNames: [filename],
+    Sheets: {
+      [filename]: worksheet,
+    },
+  };
+  /* output format determined by filename */
+  writeFile(workbook, filename, write2excelOpts);
+  /* at this point, out.xlsb will have been downloaded */
+}

src/components/Excel/src/ExportExcelModel.vue

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+<template>
+  <BasicModal v-bind="$attrs" title="导出数据" @ok="handleOk" @register="registerModal">
+    <BasicForm
+      :labelWidth="100"
+      :schemas="schemas"
+      :showActionButtonGroup="false"
+      @register="registerForm"
+    />
+  </BasicModal>
+</template>
+<script lang="ts">
+  import { defineComponent } from 'vue';
+  import { BasicModal, useModalInner } from '/@/components/Modal';
+  import { BasicForm, FormSchema, useForm } from '/@/components/Form/index';
+
+  const schemas: FormSchema[] = [
+    {
+      field: 'filename',
+      component: 'Input',
+      label: '文件名',
+      rules: [{ required: true }],
+    },
+    {
+      field: 'bookType',
+      component: 'Select',
+      label: '文件类型',
+      defaultValue: 'xlsx',
+      rules: [{ required: true }],
+      componentProps: {
+        options: [
+          {
+            label: 'xlsx',
+            value: 'xlsx',
+            key: 'xlsx',
+          },
+          {
+            label: 'html',
+            value: 'html',
+            key: 'html',
+          },
+          {
+            label: 'csv',
+            value: 'csv',
+            key: 'csv',
+          },
+          {
+            label: 'txt',
+            value: 'txt',
+            key: 'txt',
+          },
+        ],
+      },
+    },
+  ];
+  export default defineComponent({
+    components: { BasicModal, BasicForm },
+    setup(_, { emit }) {
+      const [registerForm, { validateFields }] = useForm();
+      const [registerModal, { closeModal }] = useModalInner();
+
+      async function handleOk() {
+        const res = await validateFields();
+        const { filename, bookType } = res;
+
+        emit('success', {
+          filename: `${filename.split('.').shift()}.${bookType}`,
+          bookType,
+        });
+        closeModal();
+      }
+      return {
+        schemas,
+        handleOk,
+        registerForm,
+        registerModal,
+      };
+    },
+  });
+</script>

src/components/Excel/src/ImportExcel.tsx

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+import { defineComponent, ref, unref } from 'vue';
+import XLSX from 'xlsx';
+import { getSlot } from '/@/utils/helper/tsxHelper';
+
+import type { ExcelData } from './types';
+export default defineComponent({
+  name: 'ImportExcel',
+  setup(_, { slots, emit }) {
+    const inputRef = ref<HTMLInputElement | null>(null);
+    const loadingRef = ref<Boolean>(false);
+
+    /**
+     * @description: 第一行作为头部
+     */
+    function getHeaderRow(sheet: XLSX.WorkSheet) {
+      if (!sheet || !sheet['!ref']) return [];
+      const headers: string[] = [];
+      // A3:B7=>{s:{c:0, r:2}, e:{c:1, r:6}}
+      const range = XLSX.utils.decode_range(sheet['!ref']);
+
+      const R = range.s.r;
+      /* start in the first row */
+      for (let C = range.s.c; C <= range.e.c; ++C) {
+        /* walk every column in the range */
+        const cell = sheet[XLSX.utils.encode_cell({ c: C, r: R })];
+        /* find the cell in the first row */
+        let hdr = 'UNKNOWN ' + C; // <-- replace with your desired default
+        if (cell && cell.t) hdr = XLSX.utils.format_cell(cell);
+        headers.push(hdr);
+      }
+      return headers;
+    }
+
+    /**
+     * @description: 获得excel数据
+     */
+    function getExcelData(workbook: XLSX.WorkBook) {
+      const excelData: ExcelData[] = [];
+      for (const sheetName of workbook.SheetNames) {
+        const worksheet = workbook.Sheets[sheetName];
+        const header: string[] = getHeaderRow(worksheet);
+        const results = XLSX.utils.sheet_to_json(worksheet);
+        excelData.push({
+          header,
+          results,
+          meta: {
+            sheetName,
+          },
+        });
+      }
+      return excelData;
+    }
+
+    /**
+     * @description: 读取excel数据
+     */
+    function readerData(rawFile: File) {
+      loadingRef.value = true;
+      return new Promise((resolve, reject) => {
+        const reader = new FileReader();
+        reader.onload = async (e) => {
+          try {
+            const data = e.target && e.target.result;
+            const workbook = XLSX.read(data, { type: 'array' });
+            // console.log(workbook);
+            /* DO SOMETHING WITH workbook HERE */
+            const excelData = getExcelData(workbook);
+            emit('success', excelData);
+            resolve();
+          } catch (error) {
+            reject(error);
+          } finally {
+            loadingRef.value = false;
+          }
+        };
+        reader.readAsArrayBuffer(rawFile);
+      });
+    }
+
+    async function upload(rawFile: File) {
+      const inputRefDom = unref(inputRef);
+      if (inputRefDom) {
+        // fix can't select the same excel
+        inputRefDom.value = '';
+      }
+      readerData(rawFile);
+    }
+    /**
+     * @description: 触发选择文件管理器
+     */
+    function handleInputClick(e: Event) {
+      const files = e && (e.target as HTMLInputElement).files;
+      const rawFile = files && files[0]; // only use files[0]
+      if (!rawFile) return;
+      upload(rawFile);
+    }
+    /**
+     * @description: 点击上传按钮
+     */
+    function handleUpload() {
+      const inputRefDom = unref(inputRef);
+      inputRefDom && inputRefDom.click();
+    }
+
+    return () => {
+      return (
+        <div>
+          <input
+            ref={inputRef}
+            type="file"
+            accept=".xlsx, .xls"
+            style="  z-index: -9999; display: none;"
+            onChange={handleInputClick}
+          />
+          <div onClick={handleUpload}>{getSlot(slots)}</div>
+        </div>
+      );
+    };
+  },
+});

src/components/Excel/src/types.ts

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+import type { JSON2SheetOpts, WritingOptions, BookType } from 'xlsx';
+
+export interface ExcelData<T = any> {
+  header: string[];
+  results: T[];
+  meta: { sheetName: string };
+}
+
+// export interface ImportProps {
+//   beforeUpload: (file: File) => boolean;
+// }
+
+export interface JsonToSheet<T = any> {
+  data: T[];
+  header?: T;
+  filename?: string;
+  json2sheetOpts?: JSON2SheetOpts;
+  write2excelOpts?: WritingOptions;
+}
+export interface AoAToSheet<T = any> {
+  data: T[][];
+  header?: T[];
+  filename?: string;
+  write2excelOpts?: WritingOptions;
+}
+
+export interface ExportModalResult {
+  filename: string;
+  bookType: BookType;
+}