Attempting to queue while in a match throws an exception. #4

New Issue

2022-07-06T09:11:53-04:00

LogalDeveloper commented

2022-07-06 09:11:53 -04:00

If a match participant runs /sb, they receive an internal error message and a stacktrace is printed to console.

The root cause is the join_queue command handler neglects to check if the player is in a match.

		Snowbrawl/src/main/java/dev/logal/snowbrawl/CommandHandler.java
		Lines 60 to 77 in 8102c217bb
	
					/**

					 * Joins or removes the player from the queue.

					 *

					 * @param sender The user who executed the command.

					 */

					@Command(hook = "join_queue")

					public void commandJoinQueue(CommandSender sender){

						MatchManager matchManager = this.snowbrawl.getMatchManager();

						Player player = (Player) sender;

						if (matchManager.isInQueue(player)){

							matchManager.removeFromQueue(player);

							sender.sendMessage(successMessage("You have been removed from the queue."));

						} else {

							matchManager.addToQueue(player);

							sender.sendMessage(successMessage("You have been added to the queue."));

						}

					}

Luckily, nothing actually breaks. A lower level check is performed by the MatchManager which prevents the player from actually joining the queue.

		Snowbrawl/src/main/java/dev/logal/snowbrawl/managers/MatchManager.java
		Lines 62 to 64 in 8102c217bb
	
						if (this.getMatchFromPlayer(player) != null){

							throw new IllegalStateException("A player cannot be in a match and in the queue at the same time.");

						}

The fix is to add another check to the command handler for whether the player is in a match, and if so, print a more useful error message.

If a match participant runs `/sb`, they receive an internal error message and a stacktrace is printed to console. The root cause is the `join_queue` command handler neglects to check if the player is in a match. https://git.logal.dev/LogalDeveloper/Snowbrawl/src/commit/8102c217bb441af8397ebbc5052af0cb09e74bb3/src/main/java/dev/logal/snowbrawl/CommandHandler.java#L60-L77 Luckily, nothing actually breaks. A lower level check is performed by the MatchManager which prevents the player from actually joining the queue. https://git.logal.dev/LogalDeveloper/Snowbrawl/src/commit/8102c217bb441af8397ebbc5052af0cb09e74bb3/src/main/java/dev/logal/snowbrawl/managers/MatchManager.java#L62-L64 The fix is to add another check to the command handler for whether the player is in a match, and if so, print a more useful error message.

LogalDeveloper added the Bug label 2022-07-06 09:11:53 -04:00

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Reference: LogalDeveloper/Snowbrawl#4

	if (this.getMatchFromPlayer(player) != null){
	throw new IllegalStateException("A player cannot be in a match and in the queue at the same time.");
	}