//
// Lyrics.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;
using ZenLibrary.RuleBase;

namespace ZenLibrary.Rules
{
    /// <summary>
    /// This rule tests for the presence of lyrics in 
    /// each file that it scans.
    /// </summary>
    class Lyrics : Rule
    {
        public override string Name
        {
            get { return "Contains Lyrics"; }
        }

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

        public override RuleTestResult RunTest(DirectoryInfo directoryInfo, FileInfo fileInfo)
        {
            TagLib.File file = TagLib.File.Create(fileInfo.FullName);
            if(!string.IsNullOrEmpty(file.Tag.Lyrics))
            {
                RuleTestResult result = new RuleTestResult();
                result.TestPassed = true;
                return result;
            }
            else
            {
                RuleTestResult result = new RuleTestResult();
                result.TestPassed = false;
                result.ResultPath = fileInfo.FullName;
                result.RuleTestFailedString = string.Format("The file \"{0}\" does not contain lyrics.", result.ResultPath);
                return result;
            }
        }
    }
}