Changeset 0.23.2 (#155)

server/treepath/path.go

@@ -25,6 +25,8 @@ type PathMessage struct {
 	SiblingIndex    int              `json:"sibling_index"`
 	ParticipantType string           `json:"participant_type,omitempty"`
 	ParticipantID   string           `json:"participant_id,omitempty"`
+	SenderName      *string          `json:"sender_name,omitempty"`
+	SenderAvatar    *string          `json:"sender_avatar,omitempty"`
 	CreatedAt       string           `json:"created_at"`
 }
 
@@ -159,5 +161,79 @@ func GetPathToLeaf(channelID, leafID string) ([]PathMessage, error) {
 		path[i].SiblingCount = GetSiblingCount(channelID, path[i].ParentID)
 	}
 
+	// v0.23.2: Resolve sender names and avatars
+	resolveSenderInfo(path)
+
 	return path, nil
 }
+
+// resolveSenderInfo batch-resolves sender_name and sender_avatar for path messages.
+func resolveSenderInfo(path []PathMessage) {
+	// Collect unique participant IDs by type
+	userIDs := map[string]bool{}
+	personaIDs := map[string]bool{}
+	for _, m := range path {
+		if m.ParticipantID == "" {
+			continue
+		}
+		switch m.ParticipantType {
+		case "user":
+			userIDs[m.ParticipantID] = true
+		case "persona":
+			personaIDs[m.ParticipantID] = true
+		}
+	}
+
+	// Resolve users
+	userNames := map[string]string{}
+	userAvatars := map[string]string{}
+	for uid := range userIDs {
+		var name, avatar sql.NullString
+		_ = database.DB.QueryRow(database.Q(`
+			SELECT COALESCE(display_name, username), avatar_url FROM users WHERE id = $1
+		`), uid).Scan(&name, &avatar)
+		if name.Valid {
+			userNames[uid] = name.String
+		}
+		if avatar.Valid {
+			userAvatars[uid] = avatar.String
+		}
+	}
+
+	// Resolve personas
+	personaNames := map[string]string{}
+	personaAvatars := map[string]string{}
+	for pid := range personaIDs {
+		var name, avatar sql.NullString
+		_ = database.DB.QueryRow(database.Q(`
+			SELECT name, avatar FROM personas WHERE id = $1
+		`), pid).Scan(&name, &avatar)
+		if name.Valid {
+			personaNames[pid] = name.String
+		}
+		if avatar.Valid {
+			personaAvatars[pid] = avatar.String
+		}
+	}
+
+	// Apply to path
+	for i := range path {
+		pid := path[i].ParticipantID
+		switch path[i].ParticipantType {
+		case "user":
+			if n, ok := userNames[pid]; ok {
+				path[i].SenderName = &n
+			}
+			if a, ok := userAvatars[pid]; ok && a != "" {
+				path[i].SenderAvatar = &a
+			}
+		case "persona":
+			if n, ok := personaNames[pid]; ok {
+				path[i].SenderName = &n
+			}
+			if a, ok := personaAvatars[pid]; ok && a != "" {
+				path[i].SenderAvatar = &a
+			}
+		}
+	}
+}