package application.views;

import application.ApplicationWindow;
import application.editor.Editor;
import application.editor.IStageChangeListener;
import application.editor.Stage;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class FlowLayerWindow extends JDialog implements IStageChangeListener {
    private String title = "Flow Layer";
    private JCheckBox dataFlowCheckBox = null;
    private JCheckBox pushFlowCheckBox = null;
    private JCheckBox pullFlowCheckBox = null;

    private Stage stage = null;

    public FlowLayerWindow(final ApplicationWindow owner){
        super(owner);

        setTitle(title);
        setDefaultCloseOperation(HIDE_ON_CLOSE);

        stage = Editor.STAGE_PUSH_PULL_SELECTION;

        //ボタンの追加
        dataFlowCheckBox  = new JCheckBox("Data-Flow", false);
        pushFlowCheckBox = new JCheckBox("Push-Flow", true);
        pullFlowCheckBox   = new JCheckBox("Pull-Flow", true);

        // 各Viewにイベントハンドラを追加
        dataFlowCheckBox.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                stage.setEnabledForLayer(Stage.DATA_FLOW_LAYER, dataFlowCheckBox.isSelected());
            }});

        pushFlowCheckBox.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                stage.setEnabledForLayer(Stage.PUSH_FLOW_LAYER, pushFlowCheckBox.isSelected());
            }});

        pullFlowCheckBox.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                stage.setEnabledForLayer(Stage.PULL_FLOW_LAYER, pullFlowCheckBox.isSelected());
            }});

        dataFlowCheckBox.setEnabled(false);
        pushFlowCheckBox.setEnabled(false);
        pullFlowCheckBox.setEnabled(false);

        // レイヤーのパネルレイアウトの初期化.
        Container panel = getContentPane();
        panel.setLayout(new GridLayout(/*low*/4, /*col*/1));
        panel.add(dataFlowCheckBox);
        panel.add(pushFlowCheckBox);
        panel.add(pullFlowCheckBox);
        Point location = new Point(owner.getX() + (owner.getWidth() / 2) - (this.getWidth() / 2), owner.getY() + (owner.getHeight() / 2) - (this.getHeight() / 2));
        setLocation(location);

        pack();
        setResizable(false);
    }

    /**
     * When the stage changes, toggle the active state of layer visibility buttons
	 */
    @Override
    public void stageChanged(Stage newStage) {
        dataFlowCheckBox.setEnabled(false);
        pushFlowCheckBox.setEnabled(false);
        pullFlowCheckBox.setEnabled(false);

        newStage.setEnabledForLayer(Stage.PUSH_FLOW_LAYER, false);
        newStage.setEnabledForLayer(Stage.PULL_FLOW_LAYER, false);
    }
}