/* ******************************************************************************
 * Copyright (c) 2006-2012 XMind Ltd. and others.
 * 
 * This file is a part of XMind 3. XMind releases 3 and
 * above are dual-licensed under the Eclipse Public License (EPL),
 * which is available at http://www.eclipse.org/legal/epl-v10.html
 * and the GNU Lesser General Public License (LGPL), 
 * which is available at http://www.gnu.org/licenses/lgpl.html
 * See http://www.xmind.net/license.html for details.
 * 
 * Contributors:
 *     XMind Ltd. - initial API and implementation
 *******************************************************************************/
package net.xmind.workbench.internal.actions;

import net.xmind.signin.IAccountInfo;
import net.xmind.signin.IAuthenticationListener;
import net.xmind.signin.XMindNet;
import net.xmind.signin.internal.Messages;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;

public class SignInActionDelegate implements IWorkbenchWindowActionDelegate,
        IActionDelegate2, IAuthenticationListener {

    private IWorkbenchWindow window;

    private IAction action;

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
     */
    public void dispose() {
        window = null;
        action = null;
        XMindNet.removeAuthenticationListener(this);
    }

    /*
     * (non-Javadoc)
     * 
     * @seeorg.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.
     * IWorkbenchWindow)
     */
    public void init(IWorkbenchWindow window) {
        this.window = window;
        XMindNet.addAuthenticationListener(this);
        update();
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction)
     */
    public void init(IAction action) {
        this.action = action;
        update();
    }

    private void update() {
        if (action == null)
            return;

        boolean signedIn = XMindNet.getAccountInfo() != null;
        action.setText(signedIn ? Messages.SignOut_text : Messages.SignIn_text);
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.ui.IActionDelegate2#runWithEvent(org.eclipse.jface.action
     * .IAction, org.eclipse.swt.widgets.Event)
     */
    public void runWithEvent(IAction action, Event event) {
        run(action);
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public void run(IAction action) {
        if (window == null)
            return;

        boolean signedIn = XMindNet.getAccountInfo() != null;
        if (signedIn) {
            XMindNet.signOut();
            signOutInBrowser();
        } else {
            final Display display = Display.getCurrent();
            XMindNet.signIn(new IAuthenticationListener() {

                public void postSignOut(IAccountInfo oldAccountInfo) {
                }

                public void postSignIn(final IAccountInfo accountInfo) {
                    display.asyncExec(new Runnable() {
                        public void run() {
                            showAccount(accountInfo);
                        }
                    });
                }
            }, false);
        }
    }

    private void signOutInBrowser() {
        XMindNet.gotoURL("http://www.xmind.net/xmind/signout2/"); //$NON-NLS-1$
    }

    private void showAccount(IAccountInfo accountInfo) {
        String userID = accountInfo.getUser();
        String token = accountInfo.getAuthToken();
        XMindNet.gotoURL("http://www.xmind.net/xmind/account/%s/%s", //$NON-NLS-1$ 
                userID, token);
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action
     * .IAction, org.eclipse.jface.viewers.ISelection)
     */
    public void selectionChanged(IAction action, ISelection selection) {
    }

    public void postSignIn(IAccountInfo accountInfo) {
        update();
    }

    public void postSignOut(IAccountInfo oldAccountInfo) {
        update();
    }

}