/*
 * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
 *
 * Copyright @ 2015 Atlassian Pty Ltd
 *
 * 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 net.java.sip.communicator.impl.gui.main.call;

import net.java.sip.communicator.plugin.desktoputil.*;
import net.java.sip.communicator.service.protocol.*;
import net.java.sip.communicator.service.protocol.event.*;
import net.java.sip.communicator.util.skin.*;

import org.jitsi.service.neomedia.*;

/**
 * Base class for security panels that show encryption specific UI controls.
 *
 * @author Ingo Bauersachs
 */
public abstract class SecurityPanel<T extends SrtpControl>
    extends FadeInBalloonPanel
    implements Skinnable
{
    /**
     * The currently used security control.
     */
    protected T securityControl;

    /**
     * Create security panel using the security control.
     * @param securityControl
     */
    public SecurityPanel(T securityControl)
    {
        this.securityControl = securityControl;
    }

    /**
     * The currently used security control.
     * @return
     */
    public T getSecurityControl()
    {
        return securityControl;
    }

    /**
     * The currently used security control.
     * @return
     */
    public void setSecurityControl(T securityControl)
    {
        this.securityControl = securityControl;
    }

    /**
     * Creates the security panel depending on the concrete implementation of
     * the passed security controller.
     *
     * @param srtpControl the security controller that provides the information
     *            to be shown on the UI
     * @return An instance of a {@link SecurityPanel} for the security
     *         controller or an {@link TransparentPanel} if the controller is
     *         unknown or does not have any controls to show.
     */
    public static SecurityPanel<?> create(
            SwingCallPeerRenderer peerRenderer,
            CallPeer callPeer,
            SrtpControl srtpControl)
    {
        if(srtpControl instanceof ZrtpControl)
        {
            return
                new ZrtpSecurityPanel(
                        peerRenderer,
                        callPeer,
                        (ZrtpControl) srtpControl);
        }
        else
        {
            return
                new SecurityPanel<SrtpControl>(srtpControl)
                {
                    public void loadSkin() {}

                    @Override
                    public void securityOn(CallPeerSecurityOnEvent evt) {}

                    @Override
                    public void securityOff(CallPeerSecurityOffEvent evt) {}

                    @Override
                    public void securityTimeout(
                            CallPeerSecurityTimeoutEvent evt) {}
                };
        }
    }

    /**
     * Indicates that the security is turned on.
     *
     * @param evt details about the event that caused this message.
     */
    public abstract void securityOn(CallPeerSecurityOnEvent evt);

    /**
     * Indicates that the security is turned off.
     *
     * @param evt details about the event that caused this message.
     */
    public abstract void securityOff(CallPeerSecurityOffEvent evt);

    /**
     * Indicates that the security is timeouted, is not supported by the
     * other end.
     * @param evt Details about the event that caused this message.
     */
    public abstract void securityTimeout(CallPeerSecurityTimeoutEvent evt);
}