first commit

server/src/helpers/getAvatar.ts

@@ -0,0 +1,27 @@
+import fs from "fs";
+import path from "path";
+
+export default function getAvatar(
+    userId: string,
+    avatar: string | null | undefined,
+    fallback: string
+): string {
+    const rootPath = process.env.PUBLIC_AVATAR_URL;
+    if (userId == null) return fallback;
+    if (avatar == undefined || avatar == null || avatar === "") return fallback;
+
+    const rootDir =
+        process.env.NODE_ENV !== "production"
+            ? process.env.GET_AVATAR_USERS_FILES_ROOT_DEV
+            : process.env.GET_AVATAR_USERS_FILES_ROOT_PRO;
+
+    const uploadPath = path.join(__dirname, rootDir + userId);
+
+    const filePath = path.join(uploadPath, avatar);
+
+    if (!fs.existsSync(filePath)) {
+        return fallback;
+    }
+
+    return avatar ? rootPath + userId + "/" + avatar : "";
+}