Added new message type

src/main/java/tech/sbdevelopment/themeparkaudio/commands/TPAudioCMD.java

@@ -195,4 +195,44 @@ public class TPAudioCMD extends BaseCommand {
 
         sender.sendMessage(ChatColor.GRAY + "Playback stopped!");
     }
+
+    @Subcommand("stopchannel")
+    @Description("")
+    public void onStopChannel(CommandSender sender, String selector, AudioType type) {
+        List<Player> players = new ArrayList<>();
+        Player target = Bukkit.getPlayer(selector);
+        if (target != null) {
+            if (!PinManager.hasPin(target.getUniqueId())) {
+                sender.sendMessage(ChatColor.GRAY + "The player is not connected to the client.");
+                return;
+            }
+
+            players.add(target);
+        } else {
+            SpigotPlayerSelector sel = new SpigotPlayerSelector(selector);
+
+            if (sel.getArgument("region").length() != 0) {
+                if (!ThemeParkAudio.isRegionSupport()) {
+                    sender.sendMessage(ChatColor.GRAY + "Region support is not available.");
+                    return;
+                }
+                String regionID = sel.getArgument("region");
+                new PlayInRegionHandler(regionID, "", sel.getPlayers(sender).stream().map(Entity::getUniqueId).collect(Collectors.toList()));
+
+                sender.sendMessage(ChatColor.GRAY + "Playback stopped in region " + regionID + "!");
+                return;
+            } else {
+                players.addAll(sel.getPlayers(sender));
+            }
+        }
+
+        if (type == AudioType.RADIO && !ThemeParkAudio.getInstance().getConfig().getBoolean("radio")) {
+            sender.sendMessage(ChatColor.GRAY + "The radio is disabled, so it can't be played on.");
+            return;
+        }
+
+        AudioMessage.of(type, "").broadcastSelection(players, PinManager::hasPin);
+
+        sender.sendMessage(ChatColor.GRAY + "Playback stopped!");
+    }
 }

src/main/java/tech/sbdevelopment/themeparkaudio/socket/messages/ActionFotoMessage.java

@@ -26,7 +26,7 @@ public class ActionFotoMessage extends AbstractMessage {
         JSONObject data = new JSONObject();
         data.put("attractionId", attractionId);
         data.put("image", image);
-        data.put("timestamp", timestamp.toString());
+        data.put("timestamp", timestamp.toInstant().toString());
         return data;
     }
 }