/*

* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.carbide.internal.cpp.epoc.engine.model.bldinf;

import com.nokia.carbide.cpp.epoc.engine.model.bldinf.IExport;

import com.nokia.carbide.internal.api.cpp.epoc.engine.dom.IASTListHolder;

import com.nokia.carbide.internal.api.cpp.epoc.engine.dom.IASTLiteralTextNode;

import com.nokia.carbide.internal.api.cpp.epoc.engine.dom.IASTNode;

import com.nokia.carbide.internal.api.cpp.epoc.engine.dom.IASTStatement;

import com.nokia.carbide.internal.api.cpp.epoc.engine.dom.bldinf.ASTBldInfFactory;

import com.nokia.carbide.internal.api.cpp.epoc.engine.dom.bldinf.IASTBldInfExportStatement;

import com.nokia.carbide.internal.cpp.epoc.engine.model.StructuredItemStatementListConverter;

import com.nokia.cpp.internal.api.utils.core.*;

import org.eclipse.core.runtime.IPath;

import org.eclipse.core.runtime.Path;

class ExportListConverter implements StructuredItemStatementListConverter<IASTBldInfExportStatement, IExport> {

	/**

	 * 

	 */

	private BldInfView bldInfView;

	protected final String sectionName;

	/**

	 * @param bldInfView

	 */

	ExportListConverter(BldInfView bldInfView, String sectionName) {

		this.bldInfView = bldInfView;

		this.sectionName = sectionName;

	}

	/* (non-Javadoc)

	 * @see com.nokia.carbide.internal.cpp.epoc.engine.model.ViewBase.ListConverter#elementMatches(java.lang.Object, java.lang.Object)

	 */

	public boolean elementMatches(IExport element, IExport another) {

		//return element.equals(another);

		return BldInfView.equalPath(element.getSourcePath(), another.getSourcePath());

	}

	/* (non-Javadoc)

	 * @see com.nokia.carbide.internal.cpp.epoc.engine.model.bldinf.BldInfView.ListConverter#allowEmptyStatements()

	 */

	public boolean allowEmptyStatements() {

		return true;

	}

	/* (non-Javadoc)

	 * @see com.nokia.carbide.internal.cpp.epoc.engine.model.bldinf.BldInfView.ListConverter#fromNode(com.nokia.carbide.internal.api.cpp.epoc.engine.dom.IASTNode)

	 */

	public IExport fromNode(IASTBldInfExportStatement exportStmt) {

		IExport export = this.bldInfView.createExport();

		export.setSourcePath(this.bldInfView.fromBldInfToProjectPath(exportStmt.getSourcePath()));

		if (exportStmt.getZipModifier() != null && exportStmt.getZipModifier().

				getValue().equalsIgnoreCase(BldInfView.ZIP_MODIFIER))

			export.setZipped(true);

		export.setTargetPath(this.bldInfView.fromBldInfExportTargetToProjectPath(

				export.isZipped() ? null : export.getSourcePath(), exportStmt.getTargetPath()));

		return export;

	}

	/* (non-Javadoc)

	 * @see com.nokia.carbide.internal.cpp.epoc.engine.model.bldinf.BldInfView.ListConverter#toNode(java.lang.Object)

	 */

	public IASTBldInfExportStatement toNode(IExport export) {

		if (!export.isValid())

			return null;

		IPath sourcePath = this.bldInfView.fromProjectToBldInfPath(export.getSourcePath());

		String source = bldInfView.pathString(sourcePath);

		IPath targetPath = this.bldInfView.fromProjectToBldInfExportTargetPath(

				export.getTargetPath(),

				export.isZipped() ? null : export.getSourcePath());

		String target = null;

		if (targetPath != null) {

			// need the backslashes for an export to a drive, else the build rules are broken

			// (they use 'copy' in DOS which doesn't like forward slashes)

			if (targetPath.getDevice() != null) {

				target = targetPath.toOSString();

				source = sourcePath.toOSString();

			}

			else

				target = bldInfView.pathString(targetPath);

		}

		IASTBldInfExportStatement stmt = ASTBldInfFactory.createBldInfExportStatement(

			source,

			target,

			export.isZipped() ? BldInfView.ZIP_MODIFIER : null);

		return stmt;

	}

	public void updateNode(IASTBldInfExportStatement existing,

			IASTBldInfExportStatement newElement) {

		if (!equalPathNodes(

				existing.getSourcePath(), 

				newElement.getSourcePath())) {

			if (newElement.getSourcePath() == null) {

				existing.setSourcePath(null);

			} else {

				existing.setSourcePath((IASTLiteralTextNode) newElement.getSourcePath().copy());

			}

		}

		if (!equalPathNodes(

				existing.getTargetPath(), 

				newElement.getTargetPath())) {

			if (newElement.getTargetPath() == null) {

				existing.setTargetPath(null);

			} else {

				existing.setTargetPath((IASTLiteralTextNode) newElement.getTargetPath().copy());

			}

		}

		if (!ObjectUtils.equals(existing.getZipModifier(), newElement.getZipModifier())) {

			if (newElement.getZipModifier() == null) {

				existing.setZipModifier(null);

			} else {

				existing.setZipModifier((IASTLiteralTextNode) newElement.getZipModifier().copy());

			}

		}

	}

	private boolean equalPathNodes(IASTLiteralTextNode path1,

			IASTLiteralTextNode path2) {

		if ((path1 != null) != (path2 != null))

			return false;

		if (path1 == null)

			return true;

		return BldInfView.equalPath(new Path(path1.getValue()),

				new Path(path2.getValue()));

	}

	public boolean changeRequiresNewContext(IExport existing, IExport newElement) {

		return false;

	}

	public IASTStatement createContextStatement(IExport model) {

		return null;

	}

	public IASTListHolder<IASTBldInfExportStatement> createNewListStatement() {

		return ASTBldInfFactory.createBldInfBlockStatement(sectionName);

	}

	public Pair<IASTNode, IASTNode> getInsertAnchors() {

		return null;

	}

	public void associateContextStatement(IASTStatement stmt,

			IASTStatement contextStmt) {

	}

}