admin roadmap csv export, adminactionlog, global search

lib/csv.ts

@@ -0,0 +1,67 @@
+/**
+ * CSV helpers untuk admin export. Simple string-building — bukan streaming —
+ * karena admin export jarang lebih dari 10k row di MVP.
+ *
+ * Escape rule (RFC 4180):
+ * - Field yang berisi koma, quote, CR, atau LF → bungkus quote, escape quote
+ *   internal dengan dobel quote.
+ * - Field lain biarkan apa adanya.
+ */
+
+/** Escape satu cell sesuai aturan RFC 4180. */
+export function escapeCsvCell(value: unknown): string {
+  if (value == null) return "";
+  const str = String(value);
+  if (/[",\r\n]/.test(str)) {
+    return `"${str.replace(/"/g, '""')}"`;
+  }
+  return str;
+}
+
+/**
+ * Bangun string CSV lengkap dari headers + rows. Pakai CRLF (RFC 4180) supaya
+ * Excel di Windows happy.
+ */
+export function buildCsv(headers: string[], rows: unknown[][]): string {
+  const lines = [headers.map(escapeCsvCell).join(",")];
+  for (const row of rows) {
+    lines.push(row.map(escapeCsvCell).join(","));
+  }
+  return lines.join("\r\n") + "\r\n";
+}
+
+/**
+ * Bikin Response CSV siap pakai dari Next route handler.
+ * BOM ditambahkan supaya Excel auto-detect UTF-8 untuk karakter non-ASCII
+ * (mis. nama Indonesia dengan diakritik).
+ */
+export function csvResponse(filename: string, csv: string): Response {
+  const bom = "";
+  return new Response(bom + csv, {
+    status: 200,
+    headers: {
+      "Content-Type": "text/csv; charset=utf-8",
+      "Content-Disposition": `attachment; filename="${filename}"`,
+      "Cache-Control": "no-store",
+    },
+  });
+}
+
+/** Format ISO untuk CSV (UTC, sortable). */
+export function csvDate(d: Date | null | undefined): string {
+  if (!d) return "";
+  return d.toISOString();
+}
+
+/** Tanggal Jakarta yang readable di Excel. */
+export function csvDateJakarta(d: Date | null | undefined): string {
+  if (!d) return "";
+  return d.toLocaleString("id-ID", {
+    day: "2-digit",
+    month: "2-digit",
+    year: "numeric",
+    hour: "2-digit",
+    minute: "2-digit",
+    timeZone: "Asia/Jakarta",
+  });
+}