/*
 * This file is part of ReqTracker.
 *
 * Copyright (C) 2015 Taleh Didover, Florian Gerdes, Dmitry Gorelenkov,
 *     Rajab Hassan Kaoneka, Katsiaryna Krauchanka, Tobias Polzer,
 *     Gayathery Sathya, Lukas Tajak
 *
 * ReqTracker is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * ReqTracker is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with ReqTracker.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.fau.osr.gui.View.ElementHandler;

import de.fau.osr.gui.Model.DataElements.Requirement;
import de.fau.osr.gui.View.Presenter.Presenter_Requirement;

import javax.swing.*;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;

import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.MouseMotionAdapter;
import java.util.ArrayList;
import java.util.function.Consumer;

public class Requirement_ElementHandler extends ElementHandler {
    
    
	private JButton refreshButton = new JButton();
    protected JLabel RequirementID_label = new JLabel("RequirementID");
    protected JTextField RequirementSearch_textField = new JTextField();
    
    
    public Requirement_ElementHandler(){
        button = new JButton("Navigate From ID");
        scrollPane = new JScrollPane();
    }

    @Override
    public Component toComponent() {
    	JPanel panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.PAGE_AXIS));
        panel.add(refreshButton);
        panel.add(button);
        panel.add(RequirementID_label);
        panel.add(RequirementSearch_textField);
        panel.add(scrollPane);
        return panel;
    }
    
    public void setRefreshAction(Action a) {
    	refreshButton.setAction(a);
    }
    
    private DocumentListener currentListener = null;
    public void setSearchTextFieldAction(Consumer<JTextField> action) {
    	if(currentListener != null) RequirementSearch_textField.getDocument().removeDocumentListener(currentListener);
    	currentListener = new DocumentListener() {
    		@Override
    		public void removeUpdate(DocumentEvent e) {
    			action.accept(RequirementSearch_textField);
    		}

    		@Override
    		public void insertUpdate(DocumentEvent e) {
    			action.accept(RequirementSearch_textField);
    		}

    		@Override
    		public void changedUpdate(DocumentEvent e) {
    			action.accept(RequirementSearch_textField);
    		}
    	};
    	RequirementSearch_textField.getDocument().addDocumentListener(currentListener);
    }
    
    public void clear(){
        super.clear();
    }
    
    
    public void setOnClickAction(Runnable action){
        super.setOnClickAction(action);
        
        list.addMouseMotionListener(new MouseMotionAdapter() {

            @Override
            public void mouseMoved(java.awt.event.MouseEvent e) {
                JList l = (JList)e.getSource();
                ListModel m = l.getModel();
                int index = l.locationToIndex(e.getPoint());
                if (index > -1) {
                    Requirement req = ((Presenter_Requirement) m.getElementAt(index)).getRequirement();
                    String tooltip = (req != null) ? req.getTitle() + "<br>" + req.getDescription() : "";
                    l.setToolTipText("<html><p>" + tooltip + "</p></html>");
                }
            }
        });
    }
    
    @Override
    public double getWeight() {
		return 2.0/3.0;
	}
    
}