feat : update excel

lib/guides/extra-sheet.ts

@@ -1,6 +1,10 @@
 import * as z from "zod";
 
-import { normalizeExtraRichText } from "@/lib/rich-text";
+import {
+  applyRichTextStylePatch,
+  normalizeExtraRichText,
+  type RichTextStylePatch,
+} from "@/lib/rich-text";
 
 const extraSheetId = z.string().min(1).max(128);
 
@@ -213,6 +217,29 @@ export function updateExtraSheetCells(
   };
 }
 
+export function styleExtraSheetCells(
+  sheet: ExtraSheet,
+  points: Iterable<SheetPoint>,
+  patch: RichTextStylePatch,
+): ExtraSheet {
+  const selected = new Set(Array.from(points, ({ row, column }) => `${row}:${column}`));
+  return {
+    ...sheet,
+    rows: sheet.rows.map((row, rowIndex) => ({
+      ...row,
+      cells: Object.fromEntries(Object.entries(row.cells).map(([columnId, value]) => {
+        const columnIndex = sheet.columns.findIndex((column) => column.id === columnId);
+        return [
+          columnId,
+          selected.has(`${rowIndex}:${columnIndex}`)
+            ? applyRichTextStylePatch(value, patch)
+            : value,
+        ];
+      })),
+    })),
+  };
+}
+
 export function normalizeExtraSheetRichText(sheet: ExtraSheet): ExtraSheet {
   return {
     ...sheet,