first commit

lib/cache.ts

@@ -0,0 +1,47 @@
+import { and, eq } from "drizzle-orm";
+import type { CardType } from "./cards";
+import { getDb } from "./db";
+import { cardCache } from "./db/schema";
+
+export async function getCachedCard<T>(
+  movieId: number,
+  cardType: CardType,
+): Promise<T | null> {
+  const db = getDb();
+  const rows = await db
+    .select()
+    .from(cardCache)
+    .where(
+      and(eq(cardCache.movieId, movieId), eq(cardCache.cardType, cardType)),
+    )
+    .limit(1);
+
+  if (rows.length === 0) {
+    return null;
+  }
+
+  return rows[0].payload as T;
+}
+
+export async function setCachedCard<T>(
+  movieId: number,
+  cardType: CardType,
+  payload: T,
+): Promise<void> {
+  const db = getDb();
+
+  await db
+    .insert(cardCache)
+    .values({
+      movieId,
+      cardType,
+      payload,
+    })
+    .onConflictDoUpdate({
+      target: [cardCache.movieId, cardCache.cardType],
+      set: {
+        payload,
+        createdAt: new Date(),
+      },
+    });
+}