//
// Stereo.cs
//
// Author:
//   Jacob Johnston (jacobj@inchoatethoughts.com)
//
// Copyright (C) 2009 Jacob Johnston
// 
// This program 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.
// 
// This program 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 General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

using System.IO;

namespace ZenLibrary.RuleBase
{
    /// <summary>
    /// This rule checks to see if the MP3 Header indicates
    /// the file is stereo.
    /// </summary>
    class Stereo : Rule
    {
        public override string Name
        {
            get { return "File Is Stereo"; }
        }

        public override TestType TestType
        {
            get { return TestType.FileScan; }
        }

        public override RuleTestResult RunTest(DirectoryInfo directoryInfo, FileInfo fileInfo)
        {            
            RuleTestResult result = new RuleTestResult();
            TagLib.File file = TagLib.File.Create(fileInfo.FullName);
            result = new RuleTestResult();
            if (file.Properties.AudioChannels == 2)
            {   
                result.TestPassed = true;                
            }
            else
            {
                result.TestPassed = false;
                result.ResultPath = fileInfo.FullName;
                result.RuleTestFailedString = string.Format("The file \"{0}\" is not streo.", result.ResultPath);
            }
            return result;
        }
    }
}