/*******************************************************************************
 * Copyright (c) 2012 BMW Car IT and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *******************************************************************************/
/**
 * 
 */
package org.jnario.ui.builder;

import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.xtend.ide.builder.SourceRelativeFileSystemAccess;
import org.eclipse.xtext.generator.OutputConfiguration;
import org.eclipse.xtext.util.RuntimeIOException;
import org.jnario.generator.JnarioEncodingProvider;

import com.google.inject.Inject;

/**
 * @author Sebastian Benz
 *
 */
@SuppressWarnings("restriction")
public class JnarioSourceRelativeFileSystemAccess extends
		SourceRelativeFileSystemAccess {

	@Inject
	private JnarioEncodingProvider encodingProvider;

	@Override
	protected String getEncoding(IFile file) throws CoreException {
		String charset;
		try {
			charset = file.getCharset(true);
		} catch (CoreException e) {
			throw new RuntimeException(e);
		}
		return encodingProvider.getEncoding(file.getFileExtension(), charset);
	}

	@Override
	protected boolean ensureOutputConfigurationDirectoryExists(
			OutputConfiguration outputConfig) {
		if (outputConfig.getName().equals(DEFAULT_OUTPUT)) {
			return super.ensureOutputConfigurationDirectoryExists(outputConfig);
		} else {
			IContainer container = getContainer(outputConfig);
			if (!container.exists()) {
				if (outputConfig.isCreateOutputDirectory()) {
					try {
						createContainer(container);
						return true;
					} catch (CoreException e) {
						throw new RuntimeIOException(e);
					}
				} else {
					return false;
				}
			}
			return true;
		}
	}
}