Pending course, rest ready for launch

app/api/certificates/[id]/pdf/route.ts

@@ -0,0 +1,69 @@
+import { NextResponse } from "next/server";
+import { requireUser } from "@/lib/auth/requireUser";
+import { db } from "@/lib/prisma";
+import { buildCertificatePdf } from "@/lib/certificates";
+
+function getText(value: unknown): string {
+  if (!value) return "";
+  if (typeof value === "string") return value;
+  if (typeof value === "object") {
+    const record = value as Record<string, unknown>;
+    if (typeof record.en === "string") return record.en;
+    if (typeof record.es === "string") return record.es;
+  }
+  return "";
+}
+
+type Params = {
+  params: Promise<{ id: string }>;
+};
+
+export async function GET(_: Request, { params }: Params) {
+  try {
+    const user = await requireUser();
+    if (!user?.id) {
+      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+    }
+
+    const { id } = await params;
+    const certificate = await db.certificate.findUnique({
+      where: { id },
+      include: {
+        course: {
+          select: {
+            title: true,
+          },
+        },
+      },
+    });
+
+    if (!certificate || certificate.userId !== user.id) {
+      return NextResponse.json({ error: "Not found" }, { status: 404 });
+    }
+    const certificateNumber =
+      (certificate as Record<string, unknown>).certificateNumber ??
+      (certificate.metadataSnapshot as Record<string, unknown> | null)?.certificateNumber ??
+      `ACVE-${certificate.id.slice(0, 8)}`;
+
+    const pdf = buildCertificatePdf({
+      certificateNumber: String(certificateNumber),
+      learnerName: user.fullName || user.email || "Learner",
+      learnerEmail: user.email,
+      courseTitle: getText(certificate.course.title) || "Untitled course",
+      issuedAt: certificate.issuedAt,
+    });
+
+    return new Response(Buffer.from(pdf), {
+      headers: {
+        "Content-Type": "application/pdf",
+        "Content-Disposition": `attachment; filename="certificate-${String(certificateNumber)}.pdf"`,
+        "Cache-Control": "private, no-store",
+      },
+    });
+  } catch {
+    return NextResponse.json(
+      { error: "Certificate service is not available until latest migrations are applied." },
+      { status: 503 },
+    );
+  }
+}