/* ###
 * IP: GHIDRA
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ghidra.app.util;

import java.awt.BorderLayout;
import java.awt.Dimension;

import javax.swing.*;
import javax.swing.border.EmptyBorder;
import javax.swing.border.TitledBorder;

import docking.DialogComponentProvider;
import ghidra.framework.plugintool.PluginTool;
import ghidra.program.model.data.DataType;
import ghidra.program.model.data.DataTypeComponent;
import ghidra.program.model.listing.Program;
import ghidra.util.HelpLocation;
import ghidra.util.exception.DuplicateNameException;

public class EditFieldNameDialog extends DialogComponentProvider {

	private PluginTool tool;
	private TitledBorder nameBorder;
	private JTextField fieldName;

	private Program program;
	private DataTypeComponent dtComp;

	/**
	 * Construct a new dialog.
	 *
	 * @param title title for the dialog, null value is acceptable if no title
	 * @param tool the plugin tool
	 */
	public EditFieldNameDialog(String title, PluginTool tool) {
		super(title, true, true, true, false);
		this.tool = tool;
		setHelpLocation(new HelpLocation(HelpTopics.LABEL, "EditFieldNameDialog"));

		addWorkPanel(create());

		setFocusComponent(fieldName);

		addOKButton();
		addCancelButton();

		setDefaultButton(okButton);

		setMinimumSize(new Dimension(300, 50));
	}

	private String getCurrentFieldName() {
		String name = dtComp.getFieldName();
		if (name == null) {
			name = dtComp.getDefaultFieldName();
		}
		return name;
	}

	/**
	 * This method gets called when the user clicks on the OK Button.  The base
	 * class calls this method.
	 */
	@Override
	protected void okCallback() {

		String newName = fieldName.getText().trim();

		if (newName.equals(getCurrentFieldName())) {
			close();
			return;
		}

		boolean success = false;
		int txId = program.startTransaction("Edit Field Name");
		try {
			dtComp.setFieldName(newName);
			DataType parent = dtComp.getParent();
			if (parent != null) {
				long timeNow = System.currentTimeMillis();
				parent.setLastChangeTime(timeNow);
			}
			success = true;
		}
		catch (DuplicateNameException e) {
			setStatusText(e.getMessage());
		}
		finally {
			program.endTransaction(txId, true);
		}

		if (success) {
			dtComp = null;
			program = null;
			close();
		}
	}

	public void editField(DataTypeComponent dataTypeComponent, Program p) {
		this.dtComp = dataTypeComponent;
		this.program = p;
		String name = getCurrentFieldName();
		setTitle("Edit Field Name: " + dataTypeComponent.getParent().getName() + "." + name);
		fieldName.setText(name);
		clearStatusText();
		tool.showDialog(this);
	}

	/**
	 * Define the Main panel for the dialog here.
	 */
	private JPanel create() {
		fieldName = new JTextField();

		JPanel mainPanel = new JPanel(new BorderLayout());

		nameBorder = BorderFactory.createTitledBorder("Enter Field Name");
		mainPanel.setBorder(nameBorder);

		mainPanel.add(fieldName, BorderLayout.CENTER);

		mainPanel.setBorder(new EmptyBorder(5, 5, 5, 5));

		return mainPanel;
	}

}
