/*
 *  Copyright (C) 2014 Shashank Tulsyan
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  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 General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package neembuu.release1.ui.actions;

import java.awt.event.ActionEvent;
import java.util.logging.Level;
import neembuu.rangearray.Range;
import neembuu.rangearray.UIRangeArrayAccess;
import neembuu.release1.api.log.LoggerUtil;
import neembuu.release1.api.ui.linkpanel.ProgressProvider;
import neembuu.release1.api.ui.actions.ConnectionActions;

/**
 *
 * @author Shashank Tulsyan
 */
public class ConnectionActionsImpl implements ConnectionActions {

    private final ProgressProvider ui;

    public ConnectionActionsImpl(ProgressProvider ui) {
        this.ui = ui;
    }
    
    @Override
    public void next(ActionEvent e) {
        UIRangeArrayAccess regions = ui.progress().getRegionHandlers();
        if (regions.isEmpty()) {
            return;
        }
        Range initial = ui.progress().getSelectedRange();
        initial = getClosestRange(initial);
        Range next = regions.getNext(initial);
        ui.progress().switchToRegion(next);
    }

    @Override
    public void previous(ActionEvent e) {
        UIRangeArrayAccess regions = ui.progress().getRegionHandlers();
        if (regions.isEmpty()) {
            return;
        }
        Range initial = ui.progress().getSelectedRange();
        initial = getClosestRange(initial);
        Range previous = regions.getPrevious(initial);
        ui.progress().switchToRegion(previous);
    }

    @Override
    public void kill(ActionEvent e) {
        Range selection = ui.progress().getSelectedRange();
        if (selection == null) {
            throw new RuntimeException("Null connection was selected. The kill button should automatically disable if no connection is selected");
        }
        UIRangeArrayAccess regions = ui.progress().getRegionHandlers();
        selection = regions.getUnsynchronized(selection.ending());
        try {
            ((neembuu.vfs.readmanager.ReadRequestState) selection.getProperty()).
                    getConnectionControls().abort();
        } catch (Exception any) {
            LoggerUtil.L().log(Level.SEVERE, "Connection killing exception", any);
        }
    }

    private Range getClosestRange(Range initial) {
        return Utils.getClosestRange(initial, ui.progress().getRegionHandlers());
    }
}