package polling_station_dashboard.statusLog;

import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.scene.control.Button;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;

/**
 * Created by Vladimir Eliezer Tokarev on 12/06/2016.
 * This object manages the visual changes of the status log panel
 * which means that he opens and closes status log panel)
 */
public class StatusLogVisualUpdater implements EventHandler {

    private static final int STATUS_LOG_WIDTH_EXPANSION_VALUE = 400;
    private boolean statusLogOpened = false;
    private Stage currentStage;
    private GridPane statusLog;


    public StatusLogVisualUpdater(GridPane statusLog, Stage primalStage)
    {
        this.statusLog = statusLog;
        this.currentStage = primalStage;
    }

    public void UpdateStatusLog(){
        showStatusLogButton(statusLogOpened);
        if (!statusLogOpened) {
            SetStatusLogSize(STATUS_LOG_WIDTH_EXPANSION_VALUE);
            addStatusLog();
        }
        else {
            SetStatusLogSize(-STATUS_LOG_WIDTH_EXPANSION_VALUE);
            removeStatusLog();
        }
        statusLogOpened = !statusLogOpened;
    }

    private void showStatusLogButton(boolean showOrNot){
        Button statusLogButton = (Button) currentStage.getScene().lookup("#StatusLogButton");
        statusLogButton.setVisible(showOrNot);
    }

    private void addStatusLog() {
        Pane statusLog = (Pane) currentStage.getScene().lookup("#statusLog");
        statusLog.getChildren().add(this.statusLog);
    }

    private void removeStatusLog(){
        Pane statusLog = (Pane) currentStage.getScene().lookup("#statusLog");
        statusLog.getChildren().remove(this.statusLog);
    }

    private void SetStatusLogSize(int expansionWidth) {
        currentStage.setWidth(currentStage.getWidth() + expansionWidth);
        Pane statusLog = (Pane) currentStage.getScene().lookup("#statusLog");
        statusLog.setPrefWidth(expansionWidth);
    }


    @Override
    public void handle(Event event) {
        UpdateStatusLog();
    }
}