claude-code

web/app/api/export/route.ts

@@ -0,0 +1,85 @@
+import { NextRequest, NextResponse } from "next/server";
+import type { Conversation, ExportOptions } from "@/lib/types";
+import { toMarkdown } from "@/lib/export/markdown";
+import { toJSON } from "@/lib/export/json";
+import { toHTML } from "@/lib/export/html";
+import { toPlainText } from "@/lib/export/plaintext";
+
+interface ExportRequest {
+  conversation: Conversation;
+  options: ExportOptions;
+}
+
+const MIME: Record<string, string> = {
+  markdown: "text/markdown; charset=utf-8",
+  json: "application/json",
+  html: "text/html; charset=utf-8",
+  plaintext: "text/plain; charset=utf-8",
+};
+
+const EXT: Record<string, string> = {
+  markdown: "md",
+  json: "json",
+  html: "html",
+  plaintext: "txt",
+};
+
+export async function POST(req: NextRequest) {
+  let body: ExportRequest;
+  try {
+    body = await req.json();
+  } catch {
+    return NextResponse.json({ error: "Invalid JSON body" }, { status: 400 });
+  }
+
+  const { conversation, options } = body;
+  if (!conversation || !options) {
+    return NextResponse.json(
+      { error: "Missing conversation or options" },
+      { status: 400 }
+    );
+  }
+
+  const { format } = options;
+
+  if (format === "pdf") {
+    // PDF is handled client-side via window.print()
+    return NextResponse.json(
+      { error: "PDF export is handled client-side" },
+      { status: 400 }
+    );
+  }
+
+  let content: string;
+  switch (format) {
+    case "markdown":
+      content = toMarkdown(conversation, options);
+      break;
+    case "json":
+      content = toJSON(conversation, options);
+      break;
+    case "html":
+      content = toHTML(conversation, options);
+      break;
+    case "plaintext":
+      content = toPlainText(conversation, options);
+      break;
+    default:
+      return NextResponse.json({ error: `Unknown format: ${format}` }, { status: 400 });
+  }
+
+  const slug = conversation.title
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, "-")
+    .replace(/^-|-$/g, "")
+    .slice(0, 50);
+  const filename = `${slug || "conversation"}.${EXT[format]}`;
+
+  return new NextResponse(content, {
+    status: 200,
+    headers: {
+      "Content-Type": MIME[format],
+      "Content-Disposition": `attachment; filename="${filename}"`,
+    },
+  });
+}