Implemented a warning for starting an empty tournamentt

src/main/java/no/ntnu/idatg1002/idatg1002_2022_group6/BracketViewController.java

@@ -129,6 +129,13 @@ public class BracketViewController extends TournamentController {
    * @throws IOException if the file is not found
    */
   public void onPressPlay() throws IOException {
-    TableTennisApplication.changeScene("create-tournament-match.fxml");
+    if (TournamentController.tournamentRegister.getParticipants().size() <= 2) {
+      Alert alert = new Alert(Alert.AlertType.WARNING);
+      alert.setContentText("No players are added!");
+      alert.setTitle("UNABLE TO CREATE BRACKET");
+      alert.showAndWait();
+    } else {
+      TableTennisApplication.changeScene("create-tournament-match.fxml");
+    }
   }
 }

src/main/java/no/ntnu/idatg1002/idatg1002_2022_group6/BracketViewController4.java

@@ -94,6 +94,13 @@ public class BracketViewController4 extends TournamentController {
    * @throws IOException If the file is not found
    */
   public void onPressPlay() throws IOException {
-    TableTennisApplication.changeScene("create-tournament-match.fxml");
+    if (TournamentController.tournamentRegister.getParticipants().size() <= 2) {
+      Alert alert = new Alert(Alert.AlertType.WARNING);
+      alert.setContentText("No players are added!");
+      alert.setTitle("UNABLE TO CREATE BRACKET");
+      alert.showAndWait();
+    } else {
+      TableTennisApplication.changeScene("create-tournament-match.fxml");
+    }
   }
 }

src/main/java/no/ntnu/idatg1002/idatg1002_2022_group6/BracketViewController8.java

@@ -21,7 +21,7 @@ import java.nio.file.Path;
 public class BracketViewController8 extends TournamentController {
 
   @FXML
-  private Label     playersAddedMessage;
+  private Label playersAddedMessage;
   @FXML
   private TextField textFieldPlayer1;
   @FXML
@@ -59,8 +59,7 @@ public class BracketViewController8 extends TournamentController {
       alert.setContentText("Please enter a name into the text field before proceeding!");
       alert.setTitle("WARNING");
       alert.showAndWait();
-    }
-    else {
+    } else {
       try {
         TournamentController.tournamentRegister.clear();
 
@@ -89,7 +88,7 @@ public class BracketViewController8 extends TournamentController {
     try {
       TournamentController.tournamentRegister.clear();
       TournamentController.tournamentRegister.addPlayers(
-          FileHandler.readCsv(Path.of("NEWTOURNAMENT.csv")));
+              FileHandler.readCsv(Path.of("NEWTOURNAMENT.csv")));
       TableTennisApplication.changeScene("tournament-match-view.fxml");
 
     } catch (Exception e) {
@@ -106,6 +105,13 @@ public class BracketViewController8 extends TournamentController {
    * @throws IOException if the fxml file is not found
    */
   public void onPressPlay() throws IOException {
-    TableTennisApplication.changeScene("create-tournament-match.fxml");
+    if (TournamentController.tournamentRegister.getParticipants().size() <= 2) {
+      Alert alert = new Alert(Alert.AlertType.WARNING);
+      alert.setContentText("No players are added!");
+      alert.setTitle("UNABLE TO CREATE BRACKET");
+      alert.showAndWait();
+    } else {
+      TableTennisApplication.changeScene("create-tournament-match.fxml");
+    }
   }
 }