Initial commit

src/utils/excelWriter.js

@@ -0,0 +1,35 @@
+import XLSX from 'xlsx'
+import { buildWorkbookSheets } from './signalTableBuilder'
+import { saveBlob } from './filePicker'
+
+export function createSignalTableWorkbook(data) {
+  const workbook = XLSX.utils.book_new()
+
+  buildWorkbookSheets(data).forEach(sheet => {
+    const worksheet = XLSX.utils.aoa_to_sheet(sheet.rows)
+    worksheet['!cols'] = (sheet.cols || []).map(wch => ({ wch }))
+    XLSX.utils.book_append_sheet(workbook, worksheet, sheet.name)
+  })
+
+  return workbook
+}
+
+export async function exportSignalTable(data, filename = 'SignalTable_CZ.xlsx') {
+  const workbook = createSignalTableWorkbook(data)
+  const content = XLSX.write(workbook, {
+    bookType: 'xlsx',
+    type: 'array'
+  })
+  const blob = new Blob([content], {
+    type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
+  })
+
+  return saveBlob(blob, filename, [
+    {
+      description: 'Excel 工作簿',
+      accept: {
+        'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': ['.xlsx']
+      }
+    }
+  ])
+}