Combine queued messages into one to save on message spam (fix #18)

matrix.go

@@ -188,17 +188,28 @@ func initMatrix() {
 	})
 
 	go func() {
-		for range time.Tick(time.Second * 6) {
+		for range time.Tick(time.Second * 2) {
 			log.Printf("Scanning for queued messages...")
-			for _, msg := range MatrixOut {
-				_, err := client.SendMessageEvent(context.Background(), id.RoomID(configuration.matrix.room_id), event.EventMessage, format.RenderMarkdown(msg.text, true, false))
+			if len(MatrixOut) > 0 {
+				text := ""
+				for i, msg := range MatrixOut {
+					text += msg.text
+					if i != len(MatrixOut) {
+						text += "\n"
+					}
+				}
+				MatrixOut = []MatrixMessage{}
+				_, err := client.SendMessageEvent(context.Background(),
+					id.RoomID(configuration.matrix.room_id),
+					event.EventMessage,
+					format.RenderMarkdown(text, true, false),
+				)
 				if err != nil {
 					log.Printf("[Matrix] ERROR : %s", err)
 					continue
 				}
-				log.Print("[Matrix] Sent queued message successfully.")
+				log.Print("[Matrix] Sent queued message(s) successfully.")
 			}
-			MatrixOut = []MatrixMessage{}
 		}
 	}()