display cart images

src/server/util/getData.ts

@@ -0,0 +1,56 @@
+import { Octokit } from "octokit";
+import { decrypt } from "./crypt";
+import { authors } from "../../data/authors";
+
+type Game = { carts: { name: string; src: string }[] };
+
+const gameCache: Record<string, Game> = {};
+
+export const getGame = async (
+	author: string,
+	name: string,
+): Promise<Game | null> => {
+	const authorData = authors.find((x) => x.username === author);
+
+	if (!authorData) {
+		return null;
+	}
+
+	const pat = decrypt({
+		password: process.env.ENCRYPTION_PASSWORD!,
+		cyphertext: authorData.auth.pat,
+	});
+
+	const octokit = new Octokit({
+		auth: pat,
+	});
+
+	const gameData = (
+		await octokit.rest.repos.getContent({
+			owner: authorData.username,
+			repo: authorData.repo,
+			path: `.picobook/${name}.p8.png`,
+		})
+	).data;
+
+	if (Array.isArray(gameData)) {
+		return null;
+	}
+	if (gameData.type !== "file") {
+		return null;
+	}
+
+	if (!(gameData.sha in gameCache)) {
+		gameCache[gameData.sha] = {
+			carts: [{ name, src: `data:image/png;base64,${gameData.content}` }],
+		};
+	}
+	return gameCache[gameData.sha];
+};
+
+export const getGameFromSha = async (sha: string): Promise<Game | null> => {
+	if (gameCache[sha]) {
+		console.log("cache hit");
+	}
+	return gameCache[sha] ?? null;
+};

src/server/util/types.ts

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+export type Game = { carts: { name: string; src: string }[] };