fix: align member meta default avatars

server/default_avatar.go

@@ -16,12 +16,60 @@ const (
 )
 
 func applyDefaultUserAvatar(data map[string]any, userID, gender string) {
-	if data == nil || strings.TrimSpace(stringFromAny(data["avatar_file_id"])) != "" {
+	if data == nil {
 		return
 	}
-	if avatarURL := defaultUserAvatarURL(userID, gender); avatarURL != "" {
+	if strings.TrimSpace(stringFromAny(data["avatar_file_id"])) == "" {
+		avatarURL := defaultUserAvatarURL(userID, gender)
+		if avatarURL == "" {
+			return
+		}
 		data["avatar_file_id"] = avatarURL
 	}
+	applyAvatarURL(data)
+}
+
+func applyAvatarURL(data map[string]any) {
+	if data == nil || strings.TrimSpace(stringFromAny(data["avatar_url"])) != "" {
+		return
+	}
+	avatar := strings.TrimSpace(stringFromAny(data["avatar_file_id"]))
+	if isAvatarURLValue(avatar) {
+		data["avatar_url"] = avatar
+	}
+}
+
+func publicWithDefaultUserAvatar(public any, userID string) any {
+	data := publicToMap(public)
+	gender := stringFromAny(data["gender"])
+	applyDefaultUserAvatar(data, userID, gender)
+	return data
+}
+
+func publicToMap(public any) map[string]any {
+	switch value := public.(type) {
+	case nil:
+		return map[string]any{}
+	case map[string]any:
+		out := make(map[string]any, len(value)+1)
+		for k, v := range value {
+			out[k] = v
+		}
+		return out
+	case types.KVMap:
+		out := make(map[string]any, len(value)+1)
+		for k, v := range value {
+			out[k] = v
+		}
+		return out
+	default:
+		return map[string]any{}
+	}
+}
+
+func isAvatarURLValue(value string) bool {
+	return strings.HasPrefix(value, "http://") || strings.HasPrefix(value, "https://") ||
+		strings.HasPrefix(value, "data:") || strings.HasPrefix(value, "/")
 }
 
 func defaultUserAvatarURL(userID, gender string) string {