Refactor script into separate modules

src/steam.ts

@@ -0,0 +1,64 @@
+import { REPO, YamlFile } from ".";
+import * as SteamUser from "steam-user";
+
+type SteamGameCache = {
+    [appId: string]: {
+        installDir?: string,
+        unknown?: boolean,
+    };
+};
+
+export class SteamGameCacheFile extends YamlFile<SteamGameCache> {
+    path = `${REPO}/data/steam-game-cache.yaml`;
+    defaultData = {};
+
+    constructor(public steamClient: SteamUser) {
+        super();
+    }
+
+    async getAppInstallDir(appId: number): Promise<string | undefined> {
+        const key = appId.toString();
+        if (this.data.hasOwnProperty(key)) {
+            return this.data[key].installDir;
+        } else {
+            const info: SteamProductInfoResponse = await this.steamClient.getProductInfo([appId], []);
+
+            if (info.unknownApps.includes(appId)) {
+                this.data[key] = { unknown: true };
+                return undefined;
+            }
+
+            const installDir = info.apps[key].appinfo.config?.installdir;
+            if (installDir !== undefined) {
+                this.data[key] = { installDir };
+            } else {
+                this.data[key] = {};
+            }
+            return installDir;
+        }
+    }
+}
+
+interface SteamProductInfoResponse {
+    apps: {
+        [appId: string]: {
+            appinfo: {
+                config?: {
+                    installdir?: string
+                }
+            }
+        }
+    },
+    unknownApps: Array<number>,
+}
+
+export async function getSteamClient(): Promise<SteamUser> {
+    const client = new SteamUser();
+    client.logOn();
+    await new Promise(resolve => {
+        client.on("loggedOn", () => {
+            resolve();
+        });
+    });
+    return client;
+}