package org.litesoft.GWT.client.view;

import org.litesoft.GWT.client.command.*;
import org.litesoft.GWT.client.widgets.*;
import org.litesoft.GWT.forms.client.*;
import org.litesoft.GWT.forms.client.components.*;
import org.litesoft.bo.views.*;
import org.litesoft.uispecification.*;

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

import java.util.*;

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

public abstract class TwoViewObjectInfoHelper<T extends IViewObject<T>> {
    private final TwoViewObjectInfoHelperScreenView mScreenView;
    private final ViewDef mViewDef;
    private final FormEngine mFE;
    private ObjectURL mViewObjectURL = null;
    private TwoViewObjectInfoHelper mOtherHelper = null;
    private boolean mHasViewObject = false;
    private FormBinder<T> mFormBinder;

    protected TwoViewObjectInfoHelper( TwoViewObjectInfoHelperScreenView pScreenView, ViewDef pViewDef, WidgetCtrlMap pWidgetCtrlMap ) {
        mScreenView = pScreenView;
        mViewDef = pViewDef;
        mFE = new FormEngine( pWidgetCtrlMap, FormEngine.Mode.ViewRegular, null );
    }

    protected TwoViewObjectInfoHelper( TwoViewObjectInfoHelperScreenView pScreenView, ViewDef pViewDef ) {
        this( pScreenView, pViewDef, new WidgetCtrlMap( VISIBLE_BUT_DISABLED ) );
    }

    public void initialize( ObjectURL pViewObjectURL, TwoViewObjectInfoHelper pOtherHelper ) {
        mViewObjectURL = pViewObjectURL;
        mOtherHelper = pOtherHelper;
        mFormBinder = createFormBinder( mFE );
    }

    public FormBinder<T> getFormBinder() {
        return mFormBinder;
    }

    public ObjectURL getViewObjectURL() {
        return mViewObjectURL;
    }

    public StatusMessageSinc getStatusMessageSinc() {
        return mScreenView.getStatusMessageSinc();
    }

    public void backToHome( String pError ) {
        mScreenView.backToHome( pError );
    }

    public Set<String> getNamedComponentNames() {
        return mFE.getNamedComponentNames();
    }

    public IFormComponent getNamedComponent( String pName ) {
        return mFE.getNamedComponent( pName );
    }

    public ShowScreenCommand createShowScreenCommand() {
        return new ShowScreenCommand( mViewDef, mScreenView.createRefreshParams() );
    }

    abstract protected FormBinder<T> createFormBinder( FormEngine pFE );

    abstract public Widget createInfoPanel();

    abstract public boolean requestViewObject();

    protected void setExistingObject( T pViewObject, FormEngine.Mode pMode ) {
        mHasViewObject = true;
        mFormBinder.setExistingObject( pViewObject, pMode );
        if ( mOtherHelper.mHasViewObject ) {
            mScreenView.formsReady();
        }
    }
}