Add player list to game lobby

api/src/main/java/com/charego/lingo/api/Destinations.java

@@ -16,6 +16,10 @@ public class Destinations {
 
 	public static final String OPPONENT_REPORTS = topicDestination("opponentReports");
 
+	public static final String PLAYER_JOINED = topicDestination("playerJoined");
+
+	public static final String PLAYER_LEFT = topicDestination("playerLeft");
+
 	public static final String PLAYER_REPORTS = topicDestination("playerReports");
 
 	public static final String PRACTICE_GAME = topicDestination("practiceGame");
@@ -26,8 +30,6 @@ public class Destinations {
 
 	public static final String SESSION_USERNAME = topicDestination("sessionUsername");
 
-	public static final String USER_JOINED = topicDestination("userJoined");
-
 	private static String topicDestination(String suffix) {
 		return "/topic/" + suffix;
 	}

client/src/main/java/com/charego/lingo/client/multiplayer/MultiplayerPresenter.java

@@ -2,19 +2,17 @@ package com.charego.lingo.client.multiplayer;
 
 import java.lang.reflect.Type;
 import java.util.Arrays;
-import java.util.Collection;
 import java.util.UUID;
 import java.util.concurrent.CountDownLatch;
 import java.util.function.Consumer;
 
 import javax.annotation.PostConstruct;
 
+import com.charego.lingo.common.LobbyData;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.core.task.TaskExecutor;
-import org.springframework.http.HttpMethod;
 import org.springframework.messaging.simp.stomp.StompFrameHandler;
 import org.springframework.messaging.simp.stomp.StompHeaders;
 import org.springframework.messaging.simp.stomp.StompSession.Subscription;
@@ -142,9 +140,9 @@ public class MultiplayerPresenter implements FxmlController {
 			username = UUID.randomUUID().toString().substring(0, 8);
 			stompTemplate.getSession().send("/app/setUsername", username);
 
-			Collection<Game> games = restTemplate.exchange("/games", HttpMethod.GET, null, new GameList()).getBody();
+			LobbyData lobbyData = restTemplate.getForObject("/data", LobbyData.class);
 			boolean joinedGame = false;
-			for (Game game : games) {
+			for (Game game : lobbyData.getGames()) {
 				if (game.getPlayerTwo() == null) {
 					log.debug("Joining game...");
 					stompTemplate.getSession().send("/app/joinGame", game.getId());
@@ -440,8 +438,4 @@ public class MultiplayerPresenter implements FxmlController {
 		}
 	}
 
-	private class GameList extends ParameterizedTypeReference<Collection<Game>> {
-		// intentionally left empty
-	}
-
 }

common/src/main/java/com/charego/lingo/common/LobbyData.java

@@ -0,0 +1,35 @@
+package com.charego.lingo.common;
+
+import java.util.Collection;
+
+public class LobbyData {
+
+    private Collection<Game> games;
+
+    private Collection<Player> players;
+
+    public LobbyData() {
+        // Empty constructor required for serialization
+    }
+
+    public LobbyData(Collection<Game> games, Collection<Player> players) {
+        this.games = games;
+        this.players = players;
+    }
+
+    public Collection<Game> getGames() {
+        return games;
+    }
+
+    public Collection<Player> getPlayers() {
+        return players;
+    }
+
+    public void setGames(Collection<Game> games) {
+        this.games = games;
+    }
+
+    public void setPlayers(Collection<Player> players) {
+        this.players = players;
+    }
+}

server/src/main/java/com/charego/lingo/server/LingoController.java

@@ -2,7 +2,6 @@ package com.charego.lingo.server;
 
 import static org.springframework.messaging.simp.SimpMessageHeaderAccessor.SESSION_ID_HEADER;
 
-import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
@@ -11,6 +10,8 @@ import java.util.TreeMap;
 
 import javax.annotation.PostConstruct;
 
+import com.charego.lingo.api.Destinations;
+import com.charego.lingo.common.*;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -24,14 +25,6 @@ import org.springframework.messaging.simp.annotation.SubscribeMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
-import com.charego.lingo.api.Destinations;
-import com.charego.lingo.common.ChatMessage;
-import com.charego.lingo.common.Game;
-import com.charego.lingo.common.GameLeftMessage;
-import com.charego.lingo.common.Player;
-import com.charego.lingo.common.Report;
-import com.charego.lingo.common.SetUsernameMessage;
-
 @RestController
 public class LingoController {
 
@@ -63,9 +56,9 @@ public class LingoController {
 		return new ChatMessage(player.getUsername(), message);
 	}
 
-	@RequestMapping("/games")
-	public Collection<Game> getGames() {
-		return gameById.values();
+	@RequestMapping("/data")
+	public LobbyData getLobbyData() {
+		return new LobbyData(gameById.values(), sessionManager.getPlayers());
 	}
 
 	@MessageMapping("/guess")
@@ -179,14 +172,13 @@ public class LingoController {
 		final String username = player.getUsername();
 		usernames.remove(username);
 		final Game game = gameByPlayer.remove(player);
-		if (game == null) {
-			if (username != null) {
-				log.info("{} left", username);
-				send(Destinations.CHAT, new ChatMessage(null, username + " left"));
-			}
-		} else {
+		if (game != null) {
 			leaveGame(game, player);
 		}
+		if (username != null) {
+			log.info("{} left", username);
+			send(Destinations.PLAYER_LEFT, username);
+		}
 	}
 
 	@MessageMapping("/leaveGame")
@@ -256,7 +248,7 @@ public class LingoController {
 			player.setUsername(username);
 			log.info("{} --> {}", sessionId, username);
 			sendToPlayer(player, Destinations.SESSION_USERNAME, new SetUsernameMessage(true, username, null));
-			send(Destinations.USER_JOINED, new Object[] { username, sessionManager.getPlayerCount() });
+			send(Destinations.PLAYER_JOINED, new Object[] { username, sessionManager.getPlayerCount() });
 		} else {
 			log.warn("{} -/> {} : Username taken", sessionId, username);
 			final SetUsernameMessage response = new SetUsernameMessage(false, null, "Username taken");

server/src/main/java/com/charego/lingo/server/SessionManager.java

@@ -1,5 +1,6 @@
 package com.charego.lingo.server;
 
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
@@ -44,6 +45,12 @@ public class SessionManager implements ApplicationListener<AbstractSubProtocolEv
 		return playerBySession.size();
 	}
 
+	public Collection<Player> getPlayers() {
+		Collection<Player> allPlayers = new HashSet<>(playerBySession.values());
+		allPlayers.removeIf(p -> p.getUsername() == null);
+		return allPlayers;
+	}
+
 	@Override
 	public void onApplicationEvent(AbstractSubProtocolEvent event) {
 		if (event instanceof SessionConnectedEvent) {

server/src/main/resources/static/client.js

@@ -10,6 +10,7 @@ var sessionId = null;
 var vm = new Vue({
 	el: '#vue-app',
 	data: {
+		players: [],
 		games: [],
 		messages: [],
 		username: null,
@@ -197,6 +198,16 @@ var vm = new Vue({
 			}
 			this.games.splice(indexToRemove, 1);
 		},
+		removePlayer: function(name) {
+			var indexToRemove = null;
+			for (var i = 0; i < this.players.length; i++) {
+				if (this.players[i].username === name) {
+					indexToRemove = i;
+					break;
+				}
+			}
+			this.players.splice(indexToRemove, 1);
+		},
 		onCanvasKeydown: function(e) {
 			if (e.key === 'Backspace') {
 				e.preventDefault();
@@ -362,7 +373,7 @@ function main() {
 			}
 			if (usernameSubscription === null) {
 				usernameSubscription = client.subscribe(usernameTopic, usernameHandler);
-				client.subscribe('/topic/userJoined', onUserJoined);
+				client.subscribe('/topic/playerJoined', onPlayerJoined);
 			}
 			client.publish({destination: '/app/setUsername', body: usernameValue})
 		}
@@ -398,7 +409,9 @@ function start() {
 	}
 
 	// Load initial data
-	doHttpGet('/games', function(games) {
+	doHttpGet('/data', function(data) {
+		var players = data.players;
+		var games = data.games;
 		for (var i = 0; i < games.length; i++) {
 			var game = games[i];
 			vm.games.push({
@@ -409,6 +422,12 @@ function start() {
 				started: game.playerTwo !== null
 			});
 		}
+		for (var i = 0; i < players.length; i++) {
+			var player = players[i];
+			vm.players.push({
+				username: player.username
+			});
+		}
 	});
 
 	// Subscribe to updates
@@ -417,6 +436,7 @@ function start() {
 	client.subscribe('/topic/gameHosted', onGameHosted);
 	client.subscribe('/topic/gameJoined', onGameJoined);
 	client.subscribe('/topic/gameLeft', onGameLeft);
+	client.subscribe('/topic/playerLeft', onPlayerLeft);
 	client.subscribe('/user/topic/opponentJoined', onOpponentJoined);
 	client.subscribe('/user/topic/opponentReports', onOpponentReport);
 	client.subscribe('/user/topic/playerReports', onPlayerReport);
@@ -511,9 +531,7 @@ function onGameJoined(message) {
 	var playerOne = game.playerOne.username;
 	var playerTwo = game.playerTwo.username;
 
-	var chatMessage = playerTwo + ' joined ' + playerOne + "'s game"
-	console.log(chatMessage);
-	addChatAnnouncement(chatMessage);
+	console.log(playerTwo + ' joined ' + playerOne + "'s game");
 
 	var vueGame = null;
 	for (var i = 0; i < vm.games.length; i++) {
@@ -614,7 +632,7 @@ function onPlayerReport(message) {
 	}
 }
 
-function onUserJoined(message) {
+function onPlayerJoined(message) {
 	var report = JSON.parse(message.body);
 	var username = report[0];
 	var numUsers = report[1];
@@ -627,9 +645,18 @@ function onUserJoined(message) {
 		}
 	} else {
 		addChatAnnouncement(username + ' joined');
+		vm.players.push({
+			username: username
+		});
 	}
 }
 
+function onPlayerLeft(message) {
+	var username = message.body;
+	addChatAnnouncement(username + ' left');
+	vm.removePlayer(username);
+}
+
 function canShowNotification() {
 	if (document.hidden === 'undefined' || document.hidden === false) {
 		return false;

server/src/main/resources/static/index.html

@@ -40,6 +40,18 @@
               <button v-show="inGame" @click="leaveGame" type="button" class="leave button">Leave game</button>
               <button v-show="!inGame" @click="hostGame5" type="button" class="create button">Create 5-letter game</button>
               <button v-show="!inGame" @click="hostGame6" type="button" class="create button">Create 6-letter game</button>
+              <div class="panel">
+                <div class="panel-heading">
+                  <h3 class="panel-title">Players</h3>
+                </div>
+                <div class="list-group">
+                  <div v-if="players.length === 0" class="list-group-item">There are no players</div>
+                  <template v-for="player in players">
+                    <div class="list-group-item user" v-if="player.username === username">{{ player.username }}</div>
+                    <div class="list-group-item" v-else>{{ player.username }}</div>
+                  </template>
+                </div>
+              </div>
             </div>
           </div>
           <div v-bind:class="{ primary: inStartedGame }" class="game column">

server/src/main/resources/static/style.css

@@ -125,6 +125,11 @@ button:hover:disabled {
 	border: 1px solid #ddd;
 }
 
+.list-group-item.user {
+	background-color: steelblue;
+	color: white;
+}
+
 button.list-group-item {
 	width: 100%;
 	text-align: left;