Reading the current chat if it changes or a message is received

Closes #144

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

@@ -4,6 +4,7 @@ import java.io.IOException;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 import envoy.client.net.WriteProxy;
 import envoy.data.*;
@@ -42,6 +43,27 @@ public final class Chat implements Serializable {
 	@Override
 	public String toString() { return String.format("Chat[recipient=%s,messages=%d]", recipient, messages.size()); }
 
+	/**
+	 * Generates a hash code based on the recipient.
+	 * 
+	 * @since Envoy Client v0.1-beta
+	 */
+	@Override
+	public int hashCode() { return Objects.hash(recipient); }
+
+	/**
+	 * Tests equality to another object based on the recipient.
+	 * 
+	 * @since Envoy Client v0.1-beta
+	 */
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj) return true;
+		if (!(obj instanceof Chat)) return false;
+		Chat other = (Chat) obj;
+		return Objects.equals(recipient, other.recipient);
+	}
+
 	/**
 	 * Sets the status of all chat messages received from the recipient to
 	 * {@code READ} starting from the bottom and stopping once a read message is

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

@@ -91,9 +91,14 @@ public final class ChatScene {
 			localDB.getChat(message.getSenderID()).ifPresent(chat -> {
 				chat.getMessages().add(message);
 
-				// Update UI if in current chat
+				if (chat.equals(currentChat)) {
-				if (chat == currentChat)
+					try {
+						currentChat.read(writeProxy);
+					} catch (IOException e1) {
+						logger.log(Level.WARNING, "Could not read current chat.", e1);
+					}
 					Platform.runLater(messageList::refresh);
+				}
 			});
 		});
 
@@ -163,7 +168,7 @@ public final class ChatScene {
 	@FXML
 	private void userListClicked() {
 		final Contact user = userList.getSelectionModel().getSelectedItem();
-		if (user != null && (currentChat == null || user.getID() != currentChat.getRecipient().getID())) {
+		if (user != null && (currentChat == null || !user.equals(currentChat.getRecipient()))) {
 			contactLabel.setText(user.getName());
 
 			// LEON: JFC <===> JAVA FRIED CHICKEN <=/=> Java Foundation Classes
@@ -175,6 +180,13 @@ public final class ChatScene {
 
 			messageList.setItems(FXCollections.observableList(currentChat.getMessages()));
 
+			// Read the current chat
+			try {
+				currentChat.read(writeProxy);
+			} catch (IOException e) {
+				logger.log(Level.WARNING, "Could not read current chat.", e);
+			}
+
 			remainingChars.setVisible(true);
 			remainingChars
 				.setText(String.format("remaining chars: %d/%d", MAX_MESSAGE_LENGTH - messageTextArea.getText().length(), MAX_MESSAGE_LENGTH));