package org.litesoft.GWT.client.view;

import org.litesoft.GWT.client.widgets.*;
import org.litesoft.bo.views.*;
import org.litesoft.commonfoundation.base.*;
import org.litesoft.security.*;

import com.google.gwt.core.client.*;
import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;

import static org.litesoft.uispecification.FormWidgetCtrl.*;

public class LoginDialogFactory<T extends SecurityUserView<T>> implements LoginDialogViewFactory {
    @Override
    public DialogView createDialog( boolean pCancelable, Command pOnSuccess ) {
        return new LoginDialog<T>( pCancelable, pOnSuccess );
    }

    private static class LoginDialog<T extends SecurityUserView<T>> extends AbstractSecurityDialogView<T> implements SecurityUserViewNames {
        private final Command mOnSuccess;

        public LoginDialog( boolean pCancelable, Command pOnSuccess ) {
            super( title( "Login" ), Opaqueness.Full, pCancelable );
            mOnSuccess = Confirm.isNotNull( "OnSuccess", pOnSuccess );

            centerContent();

            initializeFormInfrastructure( null )
                    .add( EDIT_ONLY.required(), aLogonEmail, aCurrentPassword );

            add( createLogonAndCurrentPassword() );
            add( new SizeableSpacer( 5 ).stretchable() );

            setEditUser( mDataProvider.createNew() );
        }

        @Override
        protected boolean processEnterPressedOn( String pName ) {
            if ( pName.equals( aLogonEmail ) ) {
                mFE.getNamedComponent( aCurrentPassword ).setFocus();
                return false;
            }
            if ( pName.equals( aCurrentPassword ) && (mSubmitButton != null) && mSubmitButton.isEnabled() ) {
                submitRequested();
                return false;
            }
            return true;
        }

        private Widget createLogonAndCurrentPassword() {
            SizeableHorizontalPanel zPanel = new SizeableHorizontalPanel().stretchableHorizontally();
            zPanel.add( mFormBinder.add( aLogonEmail, 0, LOGON ) );
            zPanel.add( mFormBinder.add( aCurrentPassword, PASSWORD_LENGTH, PASSWORD ) );
            return zPanel;
        }

        @Override
        protected void submitRequested() {
            mFormBinder.commitForm();
            final T zUserView = mFormBinder.getObject();
            mDataProvider.attemptLogin( zUserView, new SimpleDataProviderCallBack() {
                @Override
                public void error( String pError ) {
                    if ( Currently.isNotNullOrEmpty( pError ) ) {
                        setDialogErrorMessage( pError );
                    } else {
                        Scheduler.get().scheduleDeferred( mOnSuccess );
                        close();
                    }
                }
            } );
        }
    }
}