Add local repo contents

frontend/src/app/components/tabular/exportToExcel.ts

@@ -0,0 +1,81 @@
+"use client";
+
+import ExcelJS from "exceljs";
+import type { ColumnConfig, MikeDocument, TabularCell } from "../shared/types";
+import { preprocessCitations } from "./citation-utils";
+
+function formatCellForExport(cell: TabularCell | undefined): string {
+    if (!cell) return "";
+    if (cell.status === "pending" || cell.status === "generating") return "";
+    if (cell.status === "error") return "Error";
+    const summary = cell.content?.summary;
+    if (!summary) return "";
+    const { processed } = preprocessCitations(summary);
+    return processed
+        .replace(/§\d+§/g, "")
+        .replace(/\[\[([^\]]+)\]\]/g, "$1")
+        .replace(/[ \t]+/g, " ")
+        .trim();
+}
+
+function sanitizeFilename(name: string): string {
+    return (
+        name
+            .replace(/[\\/:*?"<>|]/g, "")
+            .replace(/\s+/g, " ")
+            .trim()
+            .slice(0, 80) || "Tabular Review"
+    );
+}
+
+export async function exportTabularReviewToExcel(params: {
+    reviewTitle: string;
+    columns: ColumnConfig[];
+    documents: MikeDocument[];
+    cells: TabularCell[];
+}) {
+    const { reviewTitle, columns, documents, cells } = params;
+
+    const sortedCols = [...columns].sort((a, b) => a.index - b.index);
+    const cellMap = new Map<string, TabularCell>();
+    for (const c of cells) cellMap.set(`${c.document_id}:${c.column_index}`, c);
+
+    const wb = new ExcelJS.Workbook();
+    const ws = wb.addWorksheet("Review");
+
+    ws.columns = [
+        { header: "Document", width: 40 },
+        ...sortedCols.map((c) => ({ header: c.name, width: 40 })),
+    ];
+
+    const headerRow = ws.getRow(1);
+    headerRow.font = { bold: true };
+    headerRow.alignment = { vertical: "middle" };
+    headerRow.fill = {
+        type: "pattern",
+        pattern: "solid",
+        fgColor: { argb: "FFF3F4F6" },
+    };
+
+    for (const doc of documents) {
+        const row: string[] = [doc.filename];
+        for (const col of sortedCols) {
+            row.push(formatCellForExport(cellMap.get(`${doc.id}:${col.index}`)));
+        }
+        const excelRow = ws.addRow(row);
+        excelRow.alignment = { vertical: "top", wrapText: true };
+    }
+
+    const buf = await wb.xlsx.writeBuffer();
+    const blob = new Blob([buf], {
+        type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+    });
+    const url = URL.createObjectURL(blob);
+    const a = document.createElement("a");
+    a.href = url;
+    a.download = `${sanitizeFilename(reviewTitle)}.xlsx`;
+    document.body.appendChild(a);
+    a.click();
+    a.remove();
+    URL.revokeObjectURL(url);
+}