feat: full site build — Project/Melody schema (Option A), admin CRUD, public sections, uploads, email+SMTP, internal analytics, legal pages, docs

lib/analytics.ts

@@ -0,0 +1,41 @@
+import { prisma } from "@/lib/db";
+import { analyticsEventSchema, type AnalyticsEventInput } from "@/lib/validations/analytics";
+
+export async function recordAnalyticsEvent(input: unknown) {
+  const parsed = analyticsEventSchema.safeParse(input);
+  if (!parsed.success) return false;
+
+  const { type, path, entityId } = parsed.data;
+  await prisma.analyticsEvent.create({
+    data: {
+      type,
+      path: path || null,
+      projectId: type === "PROJECT_OPEN" || type === "PROJECT_LINK_CLICK" ? entityId || null : null,
+      melodyId: type === "MELODY_PLAY" ? entityId || null : null,
+    },
+  });
+  return true;
+}
+
+export async function getAnalyticsSummary() {
+  const since = new Date(Date.now() - 30 * 24 * 60 * 60 * 1000);
+  const [total, grouped, recent] = await Promise.all([
+    prisma.analyticsEvent.count(),
+    prisma.analyticsEvent.groupBy({
+      by: ["type"],
+      where: { createdAt: { gte: since } },
+      _count: { _all: true },
+      orderBy: { _count: { type: "desc" } },
+    }),
+    prisma.analyticsEvent.findMany({
+      where: { createdAt: { gte: since } },
+      orderBy: { createdAt: "desc" },
+      take: 12,
+      select: { id: true, type: true, path: true, createdAt: true },
+    }),
+  ]);
+
+  return { total, since, grouped, recent };
+}
+
+export type { AnalyticsEventInput };