/*

* Copyright (c) 2006-2009 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.mmp;

import com.nokia.carbide.cpp.epoc.engine.model.mmp.EMMPStatement;

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

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.mmp.ASTMMPFactory;

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

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

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

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

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

import org.eclipse.core.runtime.IPath;

import org.eclipse.core.runtime.Path;

class SourcePathListConverter implements ListStatementListConverter<IASTLiteralTextNode, IPath> {

	private static final IPath CURRENT_DIRECTORY_PATH = new Path("."); //$NON-NLS-1$

	private IPath currentSourcePath;

	private MMPView view;

	private String stmtType;

	public SourcePathListConverter(MMPView view, String stmtType) {

		this.view = view;

		this.stmtType = stmtType;

	}

	public void setStatementName(String stmtType) {

		this.stmtType = stmtType;

	}

	public void setCurrentSourcePath(IPath path) {

		this.currentSourcePath = path;

	}

	/* (non-Javadoc)

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

	 */

	public boolean allowEmptyStatements() {

		return false;

	}

	/* (non-Javadoc)

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

	 */

	public boolean elementMatches(IPath element, IPath another) {

		return element.toString().toLowerCase().equals(another.toString().toLowerCase());

	}

	/* (non-Javadoc)

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

	 */

	public IPath fromNode(IASTLiteralTextNode node) {

		IPath path = FileUtils.createPossiblyRelativePath(node.getValue());

		//if (MMPView.isAbsoluteLikePath(path))

		//	return path;

		if (MMPView.equalPath(CURRENT_DIRECTORY_PATH, currentSourcePath))

			return path;

		return currentSourcePath.append(path);

	}

	/* (non-Javadoc)

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

	 */

	public IASTLiteralTextNode toNode(IPath elementObj) {

		IPath relativePath = MMPView.fromProjectToRelativePath(currentSourcePath, elementObj);

		return ASTFactory.createPreprocessorLiteralTextNode(view.pathString(relativePath));

	}

	/**

	 * @return

	 */

	public IPath getCurrentSourcePath() {

		return currentSourcePath;

	}

	/* (non-Javadoc)

	 * @see com.nokia.carbide.internal.cpp.epoc.engine.model.mmp.StatementListConverter#canAddToStatement(java.lang.Object)

	 */

	public boolean canAddToStatement(IPath model) {

		IPath mmpSourceElementPath = view.getSourcePathFromSource(model);

		return MMPView.equalPath(getCurrentSourcePath(), mmpSourceElementPath);

	}

	/* (non-Javadoc)

	 * @see com.nokia.carbide.internal.cpp.epoc.engine.model.mmp.StatementListConverter#createContextStatement(java.lang.Object)

	 */

	public IASTMMPStatement createContextStatement(IPath model) {

		IPath mmpSourceElementPath = view.getSourcePathFromSource(model);

		if (MMPView.equalPath(mmpSourceElementPath, currentSourcePath))

			return null;

		currentSourcePath = mmpSourceElementPath;

		return ASTMMPFactory.createMMPSingleArgumentStatement(

				EMMPStatement.SOURCEPATH.toString(),

				view.pathString(view.fromProjectToMmpPath(mmpSourceElementPath)));

	}

	public IASTListHolder<IASTLiteralTextNode> createNewListStatement() {

		return ASTMMPFactory.createMMPListArgumentStatement(stmtType);

	}

	public boolean changeRequiresNewContext(IPath existing, IPath newElement) {

		return false;

	}

	public Pair<IASTNode, IASTNode> getInsertAnchors() {

		return null;

	}

	public void associateContextStatement(IASTStatement stmt,

			IASTStatement contextStmt) {

		IMMPSourcePathDependentContext mmpContext = ((IASTMMPStatement) stmt).getSourcePathDependentContext();

		mmpContext.setSourcePathStatement((IASTMMPSingleArgumentStatement) contextStmt);

	}

}