// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.ui.def.nonpublic.support;

import org.litesoft.commonfoundation.base.*;
import org.litesoft.core.hierarchicaldata.*;
import org.litesoft.core.util.*;
import org.litesoft.ui.def.*;
import org.litesoft.uispecification.*;

public class UiDvRehydrate {
    private Factory mFactory;

    public UiDvRehydrate( Factory pFactory ) {
        mFactory = pFactory;
    }

    public UiDef process( HierarchicalDataSource.Node pNode ) {
        UiDef def = mFactory.create( pNode.getName() ); // node will not be null

        UiD_Attribute[] attributes = def.getDefAttributes();
        for ( int i = 0; i < attributes.length; i++ ) {
            attributes[i].rehydrate( pNode );
        }

        HierarchicalDataSource.Node child = pNode.getNextChild();

        if ( def instanceof UiFontable ) {
            UiFontable zFontable = (UiFontable) def;
            while ( (child != null) && isFontAttribute( zFontable, child.getName() ) ) {
                String zAttributeName = child.getName();
                UiFont font = UiFont.rehydrate( child );
                zFontable.setFont( zAttributeName, font );
                child = pNode.getNextChild();
            }
        }
        if ( def instanceof Hintable ) {
            Hintable hintable = (Hintable) def;
            while ( (child != null) && "Hint".equals( child.getName() ) ) {
                String[] names = child.getAttributeNames();
                if ( Currently.isNullOrEmpty( names ) ) {
                    throw new IllegalArgumentException( "Hint w/o Name & Value" );
                }
                if ( names.length > 1 ) {
                    throw new IllegalArgumentException( "Hint with more than 1 Name & Value" );
                }
                String hName = names[0];
                String prev = hintable.addHint( hName, child.getAttributeValue( hName ) );
                if ( prev != null ) {
                    throw new IllegalArgumentException( "Duplicate Hint (" + hName + ") on " + def );
                }
                child = pNode.getNextChild();
            }
        }

        if ( def instanceof UiContainerMarker ) {
            UiChildrenHelper childrenHelper = ((UiContainerMarker) def).getChildrenHelper();
            while ( child != null ) {
                childrenHelper.addChild( process( child ) );
                child = pNode.getNextChild();
            }
        }

        pNode.assertNoMoreChildren( child );

        return def;
    }

    private boolean isFontAttribute( UiFontable pUiFontable, String pName ) {
        String[] attributeNames = pUiFontable.getFontAttributeNames();
        if ( attributeNames != null ) {
            for ( int i = 0; i < attributeNames.length; i++ ) {
                if ( Currently.areEqual( pName, attributeNames[i] ) ) {
                    return true;
                }
            }
        }
        return false;
    }
}