add: loading user scores

Author: Mitsunee

src/manager/scores/loadUserScores.ts

@@ -0,0 +1,25 @@
+import { CacheFile } from "~/cache";
+import type { UserClassScore } from "./types";
+import { log } from "~/utils/logger";
+import { createBlankUserScore } from "./createBlankUserScore";
+
+const cacheFiles = new Map<number, CacheFile<UserClassScore>>();
+
+export async function loadUserScore(id: number) {
+  let cacheFile = cacheFiles.get(id);
+  if (!cacheFile) {
+    const filePath = `data/user/scores/${id}.json`;
+    cacheFile = new CacheFile(filePath);
+    cacheFiles.set(id, cacheFile);
+  }
+
+  const exists = await cacheFile.exists();
+  if (!exists) {
+    log.debug(
+      `User data for Class Score id ${id} does not yet exist, creating file...`
+    );
+    await cacheFile.write(createBlankUserScore(id));
+  }
+
+  return cacheFile;
+}

src/manager/scores/types.ts

@@ -0,0 +1,4 @@
+export interface UserClassScore {
+  id: number;
+  unlockedNodes: Array<number>;
+}