Limit the backlog of chat messages to recent messages. For #47

core/chat/chat.go

@@ -80,5 +80,21 @@ func GetMessages() []models.ChatMessage {
 		return []models.ChatMessage{}
 	}
 
-	return _server.Messages
+	return getRecentMessages()
+}
+
+func getRecentMessages() []models.ChatMessage {
+	if len(_server.Messages) < 100 {
+		return _server.Messages
+	}
+
+	maxAgeInHours := float64(2)
+	messages := make([]models.ChatMessage, 0)
+	for _, message := range _server.Messages {
+		if time.Since(message.Timestamp).Hours() < maxAgeInHours {
+			messages = append(messages, message)
+		}
+	}
+
+	return messages
 }

core/chat/persistence.go

@@ -67,7 +67,8 @@ func addMessage(message models.ChatMessage) {
 func getChatHistory() []models.ChatMessage {
 	history := make([]models.ChatMessage, 0)
 
-	rows, err := _db.Query("SELECT * FROM messages WHERE visible = 1")
+	// Get all messages sent within the past day
+	rows, err := _db.Query("SELECT * FROM messages WHERE visible = 1 AND datetime(timestamp) >=datetime('now', '-1 Day')")
 	if err != nil {
 		log.Fatal(err)
 	}