Initial commit: PodcastYes — AI podcast platform

lib/usage/meter.ts

@@ -0,0 +1,47 @@
+import { prisma } from "@/lib/db";
+import { periodKey } from "@/lib/utils";
+import type { UsageMetric } from "@/lib/billing/plans";
+
+export type OwnerType = "user" | "organization";
+
+/** Increment a monthly usage counter for a billing subject. */
+export async function incrementUsage(
+  ownerId: string,
+  ownerType: OwnerType,
+  metric: UsageMetric,
+  by = 1
+): Promise<void> {
+  const key = periodKey(new Date());
+  await prisma.usageRecord.upsert({
+    where: { ownerId_periodKey_metric: { ownerId, periodKey: key, metric } },
+    create: { ownerId, ownerType, periodKey: key, metric, count: by },
+    update: { count: { increment: by } },
+  });
+}
+
+/** Current-period count for a single metric. */
+export async function getUsage(
+  ownerId: string,
+  metric: UsageMetric,
+  date = new Date()
+): Promise<number> {
+  const rec = await prisma.usageRecord.findUnique({
+    where: { ownerId_periodKey_metric: { ownerId, periodKey: periodKey(date), metric } },
+  });
+  return rec?.count ?? 0;
+}
+
+/** Current-period counts for all metrics. */
+export async function getUsageSummary(
+  ownerId: string,
+  date = new Date()
+): Promise<Record<UsageMetric, number>> {
+  const rows = await prisma.usageRecord.findMany({
+    where: { ownerId, periodKey: periodKey(date) },
+  });
+  const summary: Record<UsageMetric, number> = { script: 0, audio: 0, art: 0, repurpose: 0 };
+  for (const row of rows) {
+    if (row.metric in summary) summary[row.metric as UsageMetric] = row.count;
+  }
+  return summary;
+}