s

backend/avatar_assets.py

@@ -0,0 +1,13 @@
+from __future__ import annotations
+
+AVATAR_BASE_URL = "https://minio.nomadro.cn/hackrobot/nomadcna/avatars"
+AVATAR_URLS = [f"{AVATAR_BASE_URL}/avatar-{index:02d}.jpg" for index in range(1, 33)]
+
+
+def avatar_for_index(index: int) -> str:
+    return AVATAR_URLS[abs(int(index)) % len(AVATAR_URLS)]
+
+
+def avatar_for_name(name: str) -> str:
+    seed = sum(ord(char) for char in (name or "NomadCNA"))
+    return avatar_for_index(seed)