update

landing/functions/api/download-stats.ts

@@ -0,0 +1,34 @@
+import type { CounterDatabase, PagesHandler } from "../types";
+import { DOWNLOAD_COUNT_SEED } from "../../lib/downloads";
+
+interface Env {
+  DOWNLOAD_COUNTER_DB: CounterDatabase;
+}
+
+async function readDownloadCount(db: CounterDatabase) {
+  const result = await db
+    .prepare(`
+      SELECT
+        COALESCE(
+          (SELECT value FROM download_counter_settings WHERE key = 'base_downloads'),
+          ?
+        ) + COUNT(*) AS downloads
+      FROM unique_download_windows
+    `)
+    .bind(DOWNLOAD_COUNT_SEED)
+    .first<{ downloads: number }>();
+
+  return result?.downloads ?? DOWNLOAD_COUNT_SEED;
+}
+
+export const onRequestGet: PagesHandler<Env> = async (context) => {
+  const downloads = await readDownloadCount(context.env.DOWNLOAD_COUNTER_DB);
+  return Response.json(
+    { downloads },
+    {
+      headers: {
+        "Cache-Control": "no-store",
+      },
+    },
+  );
+};