/**
 * DataCleaner (community edition)
 * Copyright (C) 2014 Neopost - Customer Information Management
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.datacleaner.widgets.database;

import javax.swing.JComponent;
import javax.swing.JPasswordField;

import org.datacleaner.connection.JdbcDatastore;
import org.datacleaner.panels.DCPanel;
import org.datacleaner.util.WidgetFactory;
import org.datacleaner.util.WidgetUtils;
import org.datacleaner.widgets.DCLabel;
import org.datacleaner.windows.JdbcDatastoreDialog;
import org.jdesktop.swingx.JXTextField;

/**
 * Abstract implementation of {@link DatabaseConnectionPresenter}, which only
 * provides the username/password (credentials) part.
 */
public abstract class AbstractDatabaseConnectionPresenter implements DatabaseConnectionPresenter {

    private final JXTextField _usernameTextField;
    private final JPasswordField _passwordField;

    public AbstractDatabaseConnectionPresenter() {
        _usernameTextField = createTextField("Username");
        _passwordField = WidgetFactory.createPasswordField(JdbcDatastoreDialog.TEXT_FIELD_WIDTH);
    }

    /**
     * Creates a text field as per the default design of a
     * {@link DatabaseConnectionPresenter}.
     *
     * @param promptText
     * @return
     */
    protected static JXTextField createTextField(final String promptText) {
        return WidgetFactory.createTextField(promptText, JdbcDatastoreDialog.TEXT_FIELD_WIDTH);
    }

    @Override
    public boolean initialize(final JdbcDatastore datastore) {
        _usernameTextField.setText(datastore.getUsername());
        _passwordField.setText(datastore.getPassword());
        return true;
    }

    @Override
    public final JComponent getWidget() {
        final DCPanel panel = new DCPanel();

        int row = layoutGridBagAboveCredentials(panel);

        row = layoutGridBagCredentials(panel, row);

        layoutGridBagBelowCredentials(panel, row);

        return WidgetUtils.scrolleable(panel);
    }

    protected int layoutGridBagCredentials(final DCPanel panel, int row) {
        row++;
        WidgetUtils.addToGridBag(DCLabel.dark("Username:"), panel, 0, row);
        WidgetUtils.addToGridBag(_usernameTextField, panel, 1, row, 1.0, 0.0);

        row++;
        WidgetUtils.addToGridBag(DCLabel.dark("Password:"), panel, 0, row);
        WidgetUtils.addToGridBag(_passwordField, panel, 1, row, 1.0, 0.0);

        return row;
    }

    /**
     * Lays out components in a panel with a gridbag layout.
     *
     * @param panel
     * @return the latest row number in the grid bag
     */
    protected int layoutGridBagAboveCredentials(final DCPanel panel) {
        return -1;
    }

    /**
     * Lays out components in a panel with a gridbag layout.
     *
     * @param panel
     * @param row
     *            the latest row number in the grid bag
     */
    protected void layoutGridBagBelowCredentials(final DCPanel panel, final int row) {
    }

    public JXTextField getUsernameTextField() {
        return _usernameTextField;
    }

    public JPasswordField getPasswordField() {
        return _passwordField;
    }

    @Override
    public final String getUsername() {
        return _usernameTextField.getText();
    }

    @Override
    public final String getPassword() {
        return new String(_passwordField.getPassword());
    }

}