Fix several bugs

These are:
- not immediately updating ChatScene if a contact was blocked and both
are online
- ContactSearchTab showing previously entered text on reopening (without
showing suggestions)
- users not getting notified if someone else blocked them while they
were offline
- no logger statements in UserUtil

Still to do:
- Move ContextMenu from chatList to ChatControl
- Test behavior for groups

client/src/main/java/envoy/client/data/Chat.java

@@ -57,7 +57,9 @@ public class Chat implements Serializable {
 	}
 
 	@Override
-	public String toString() { return String.format("%s[recipient=%s,messages=%d]", getClass().getSimpleName(), recipient, messages.size()); }
+	public String toString() {
+		return String.format("%s[recipient=%s,messages=%d, disabled=%b]", getClass().getSimpleName(), recipient, messages.size(), disabled);
+	}
 
 	/**
 	 * Generates a hash code based on the recipient.

client/src/main/java/envoy/client/data/LocalDB.java

@@ -1,11 +1,14 @@
 package envoy.client.data;
 
+import static java.util.function.Predicate.not;
+
 import java.io.*;
 import java.nio.channels.*;
 import java.nio.file.StandardOpenOption;
 import java.time.Instant;
 import java.util.*;
 import java.util.logging.*;
+import java.util.stream.Stream;
 
 import javafx.application.Platform;
 import javafx.collections.*;
@@ -35,12 +38,13 @@ public final class LocalDB implements EventListener {
 
 	// Data
 	private User					user;
-	private Map<String, User>		users				= Collections.synchronizedMap(new HashMap<>());
-	private ObservableList<Chat>	chats				= FXCollections.observableArrayList();
+	private Map<String, User>		users		= Collections.synchronizedMap(new HashMap<>());
+	private ObservableList<Chat>	chats		= FXCollections.observableArrayList();
 	private IDGenerator				idGenerator;
-	private CacheMap				cacheMap			= new CacheMap();
+	private CacheMap				cacheMap	= new CacheMap();
 	private String					authToken;
-	private Set<? extends Contact>	originalContacts	= Set.of();
+	private boolean					contactsChanged;
+	private Stream<Chat>			changedChats;
 
 	// Auto save timer
 	private Timer	autoSaver;
@@ -138,7 +142,19 @@ public final class LocalDB implements EventListener {
 		if (user == null) throw new IllegalStateException("Client user is null, cannot initialize user storage");
 		userFile = new File(dbDir, user.getID() + ".db");
 		try (var in = new ObjectInputStream(new FileInputStream(userFile))) {
-			chats		= FXCollections.observableList((List<Chat>) in.readObject());
+			chats = FXCollections.observableList((List<Chat>) in.readObject());
+
+			// Some chats have changed and should not be overridden by the saved values
+			if (changedChats != null) {
+				changedChats.forEach(chat -> {
+					final var chatIndex = chats.indexOf(chat);
+					if (chatIndex == -1) return;
+					else chats.set(chatIndex, chat);
+				});
+
+				// loadUserData can get called two (or more?) times during application lifecycle
+				changedChats = null;
+			}
 			cacheMap	= (CacheMap) in.readObject();
 			lastSync	= (Instant) in.readObject();
 		} finally {
@@ -324,7 +340,7 @@ public final class LocalDB implements EventListener {
 	private void onOwnStatusChange(OwnStatusChange statusChange) { user.setStatus(statusChange.get()); }
 
 	@Event(eventType = ContactsChangedSinceLastLogin.class, priority = 500)
-	private void onContactsChangedSinceLastLogin() { if (user != null) originalContacts = user.getContacts(); }
+	private void onContactsChangedSinceLastLogin() { if (user != null) contactsChanged = true; }
 
 	/**
 	 * @return a {@code Map<String, User>} of all users stored locally with their
@@ -363,13 +379,12 @@ public final class LocalDB implements EventListener {
 	 */
 	public void setUserAndMergeContacts(User user) {
 		this.user = user;
-		if (originalContacts.isEmpty()) return;
-		else {
+		if (contactsChanged)
 
-			// mark all chats of deleted contacts
-			originalContacts.removeAll(user.getContacts());
-			originalContacts.forEach(contact -> getChat(contact.getID()).ifPresent(chat -> chat.setDisabled(true)));
-		}
+			// Mark chats as disabled if a contact is no longer in this users contact list
+			changedChats = chats.stream()
+				.filter(not(chat -> user.getContacts().contains(chat.getRecipient())))
+				.peek(chat -> { chat.setDisabled(true); logger.log(Level.INFO, String.format("Marked %s as blocked.", chat.getRecipient())); });
 	}
 
 	/**

client/src/main/java/envoy/client/ui/controller/ChatScene.java

@@ -272,8 +272,7 @@ public final class ChatScene implements EventListener, Restorable {
 	@Event
 	private void onUserOperation(UserOperation operation) {
 		// All ADD dependant logic resides in LocalDB
-		if (operation.getOperationType().equals(ElementOperation.REMOVE))
-			if (currentChat != null && currentChat.getRecipient().equals(operation.get())) Platform.runLater(this::resetState);
+		if (operation.getOperationType().equals(ElementOperation.REMOVE)) Platform.runLater(() -> disableChat(operation.get(), true));
 	}
 
 	@Event

client/src/main/java/envoy/client/ui/controller/ContactSearchTab.java

@@ -124,5 +124,8 @@ public class ContactSearchTab implements EventListener {
 	}
 
 	@FXML
-	private void backButtonClicked() { eventBus.dispatch(new BackEvent()); }
+	private void backButtonClicked() {
+		searchBar.setText("");
+		eventBus.dispatch(new BackEvent());
+	}
 }

client/src/main/java/envoy/client/ui/controller/GroupCreationTab.java

@@ -82,7 +82,7 @@ public class GroupCreationTab implements EventListener {
 				.map(User.class::cast)
 				.collect(Collectors.toList()));
 		resizeQuickSelectSpace(0);
-		quickSelectList.addEventFilter(MouseEvent.MOUSE_PRESSED, evt -> evt.consume());
+		quickSelectList.addEventFilter(MouseEvent.MOUSE_PRESSED, MouseEvent::consume);
 	}
 
 	/**
@@ -169,7 +169,7 @@ public class GroupCreationTab implements EventListener {
 
 	/**
 	 * Removes an element from the quickSelectList.
-	 * 
+	 *
 	 * @param element the element to be removed.
 	 * @since Envoy Client v0.3-beta
 	 */
@@ -238,7 +238,7 @@ public class GroupCreationTab implements EventListener {
 		Platform.runLater(() -> {
 			switch (operation.getOperationType()) {
 				case ADD:
-					userList.getItems().add((User) operation.get());
+					userList.getItems().add(operation.get());
 					break;
 				case REMOVE:
 					userList.getItems().removeIf(operation.get()::equals);

client/src/main/java/envoy/client/util/UserUtil.java

@@ -1,6 +1,6 @@
 package envoy.client.util;
 
-import java.util.logging.Level;
+import java.util.logging.*;
 
 import javafx.scene.control.Alert;
 import javafx.scene.control.Alert.AlertType;
@@ -26,7 +26,8 @@ import dev.kske.eventbus.EventBus;
  */
 public final class UserUtil {
 
-	private static final Context context = Context.getInstance();
+	private static final Context	context	= Context.getInstance();
+	private static final Logger		logger	= EnvoyLog.getLogger(UserUtil.class);
 
 	private UserUtil() {}
 
@@ -46,6 +47,7 @@ public final class UserUtil {
 			EventBus.getInstance().dispatch(new EnvoyCloseEvent());
 			EventBus.getInstance().dispatch(new Logout());
 			context.getSceneContext().load(SceneInfo.LOGIN_SCENE);
+			logger.log(Level.INFO, "A logout occurred.");
 		});
 	}
 
@@ -63,6 +65,7 @@ public final class UserUtil {
 		else {
 			EventBus.getInstance().dispatch(new OwnStatusChange(newStatus));
 			if (context.getClient().isOnline()) context.getClient().send(new UserStatusChange(context.getLocalDB().getUser().getID(), newStatus));
+			logger.log(Level.INFO, "A manual status change occurred.");
 		}
 	}
 
@@ -87,6 +90,7 @@ public final class UserUtil {
 				context.getLocalDB().getChat(block.getID()).ifPresent(chat -> chat.setDisabled(true));
 				final var controller = context.getSceneContext().getController();
 				if (controller instanceof ChatScene) ((ChatScene) controller).disableChat(block, true);
+				logger.log(Level.INFO, "A contact was blocked.");
 			});
 		}
 	}
@@ -108,6 +112,7 @@ public final class UserUtil {
 				context.getLocalDB().getChats().removeIf(chat -> chat.getRecipient().equals(delete));
 				if (context.getSceneContext().getController() instanceof ChatScene)
 					((ChatScene) context.getSceneContext().getController()).resetState();
+				logger.log(Level.INFO, "A contact with all his messages was deleted.");
 			});
 		}
 	}