package envoy.client.ui.listcell;

import java.awt.Toolkit;
import java.awt.datatransfer.StringSelection;
import java.io.ByteArrayInputStream;
import java.time.format.DateTimeFormatter;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import javafx.geometry.Insets;
import javafx.scene.control.ContextMenu;
import javafx.scene.control.Label;
import javafx.scene.control.MenuItem;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.VBox;

import envoy.client.ui.AudioControl;
import envoy.client.ui.IconUtil;
import envoy.data.Message;
import envoy.data.Message.MessageStatus;
import envoy.data.User;
import envoy.util.EnvoyLog;

/**
 * This class formats a single {@link Message} into a UI component.
 * <p>
 * Project: <strong>envoy-client</strong><br>
 * File: <strong>MessageControl.java</strong><br>
 * Created: <strong>01.07.2020</strong><br>
 *
 * @author Leon Hofmeister
 * @since Envoy Client v0.1-beta
 */
public class MessageControl extends Label {

	private static User								client;
	private static final DateTimeFormatter			dateFormat		= DateTimeFormatter.ofPattern("dd.MM.yyyy HH:mm");
	private static final Map<MessageStatus, Image>	statusImages	= IconUtil.loadByEnum(MessageStatus.class, 16);

	private static final Logger logger = EnvoyLog.getLogger(MessageControl.class);

	/**
	 *
	 * @param message the message that should be formatted
	 * @since Envoy Client v0.1-beta
	 */
	public MessageControl(Message message) {
		// Creating the underlying VBox and the dateLabel
		final var vbox = new VBox(new Label(dateFormat.format(message.getCreationDate())));

		// Creating the actions for the MenuItems
		final ContextMenu	contextMenu		= new ContextMenu();
		final MenuItem		copyMenuItem	= new MenuItem("Copy");
		final MenuItem		deleteMenuItem	= new MenuItem("Delete");
		final MenuItem		forwardMenuItem	= new MenuItem("Forward");
		final MenuItem		quoteMenuItem	= new MenuItem("Quote");
		final MenuItem		infoMenuItem	= new MenuItem("Info");
		copyMenuItem.setOnAction(e -> copyMessage(message));
		deleteMenuItem.setOnAction(e -> deleteMessage(message));
		forwardMenuItem.setOnAction(e -> forwardMessage(message));
		quoteMenuItem.setOnAction(e -> quoteMessage(message));
		infoMenuItem.setOnAction(e -> loadMessageInfoScene(message));
		contextMenu.getItems().addAll(copyMenuItem, deleteMenuItem, forwardMenuItem, quoteMenuItem, infoMenuItem);

		// Handling message attachment display
		if (message.hasAttachment()) {
			switch (message.getAttachment().getType()) {
				case PICTURE:
					vbox.getChildren().add(new ImageView(new Image(new ByteArrayInputStream(message.getAttachment().getData()), 256, 256, true, true)));
					break;
				case VIDEO:
					break;
				case VOICE:
					vbox.getChildren().add(new AudioControl(message.getAttachment().getData()));
					break;
				case DOCUMENT:
					break;
			}
			final var saveAttachment = new MenuItem("Save attachment");
			saveAttachment.setOnAction(e -> saveAttachment(message));
			contextMenu.getItems().add(saveAttachment);
		}
		// Creating the textLabel
		final var textLabel = new Label(message.getText());
		textLabel.setWrapText(true);
		vbox.getChildren().add(textLabel);
		// Setting the message status icon and background color
		if (message.getSenderID() == client.getID()) {
			final var statusIcon = new ImageView(statusImages.get(message.getStatus()));
			statusIcon.setPreserveRatio(true);
			vbox.getChildren().add(statusIcon);
			getStyleClass().add("own-message");
		} else getStyleClass().add("received-message");
		// Adjusting height and weight of the cell to the corresponding ListView
		paddingProperty().setValue(new Insets(5, 20, 5, 20));
		setContextMenu(contextMenu);
		setGraphic(vbox);
	}

	// Context Menu actions

	private void copyMessage(Message message) {
		Toolkit.getDefaultToolkit().getSystemClipboard().setContents(new StringSelection(message.getText()), null);
	}

	private void deleteMessage(Message message) { logger.log(Level.FINEST, "message deletion was requested for " + message); }

	private void forwardMessage(Message message) { logger.log(Level.FINEST, "message forwarding was requested for " + message); }

	private void quoteMessage(Message message) { logger.log(Level.FINEST, "message quotation was requested for " + message); }

	private void loadMessageInfoScene(Message message) { logger.log(Level.FINEST, "message info scene was requested for " + message); }

	private void saveAttachment(Message message) { logger.log(Level.FINEST, "attachment saving was requested for " + message); }

	/**
	 * @param client the user who has logged in
	 * @since Envoy Client v0.1-beta
	 */
	public static void setUser(User client) { MessageControl.client = client; }
}