/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2015, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.services.version;


import javax.annotation.Nonnull;

import appeng.core.AELog;
import appeng.services.version.exceptions.VersionCheckerException;


/**
 * Wrapper for {@link VersionParser} to check if the check is happening in developer environment or in a pull request.
 *
 * In that case ignore the check.
 */
public final class ModVersionFetcher implements VersionFetcher
{
	private static final Version EXCEPTIONAL_VERSION = new MissingVersion();

	@Nonnull
	private final String rawModVersion;
	@Nonnull
	private final VersionParser parser;

	public ModVersionFetcher( @Nonnull final String rawModVersion, @Nonnull final VersionParser parser )
	{
		this.rawModVersion = rawModVersion;
		this.parser = parser;
	}

	/**
	 * Parses only, if not checked in developer environment or in a pull request
	 *
	 * @return {@link DoNotCheckVersion} if in developer environment or pull request, {@link MissingVersion} in case of
	 * a parser exception or else the parsed {@link Version}.
	 */
	@Override
	public Version get()
	{
		if( this.rawModVersion.equals( "@version@" ) || this.rawModVersion.contains( "pr" ) )
		{
			return new DoNotCheckVersion();
		}

		try
		{
			final Version version = this.parser.parse( this.rawModVersion );

			return version;
		}
		catch( final VersionCheckerException e )
		{
			AELog.debug( e );

			return EXCEPTIONAL_VERSION;
		}
	}
}