// Modules.cs created with MonoDevelop
// User: chadk at 1:08 PM 12/23/2007
//
// To change standard headers go to Edit->Preferences->Coding->Standard Headers
//

using System;
using System.Collections.Generic;
using System.IO;

namespace Lunar
{

	public class Modules
	{
		private Moonbase mSourceMoonbase;
		private SortedList<string, string> mModuleList;
		
		public int Count
		{
			get
			{
				return this.mModuleList.Count;
			}
		}
		
		public Modules(Moonbase parentMoonbase)
		{
			this.mSourceMoonbase = parentMoonbase;
			this.UpdateModuleList();
		}
		
		// TODO: this currently ignores zlocal
		private void UpdateModuleList()
		{
			this.mModuleList = new SortedList<string,string>();

			foreach (Section section in this.mSourceMoonbase.Sections)
			{
				if (!section.IsZLocal)
				{
					foreach (FileInfo file in section.DirectoryInfo.GetFiles("DETAILS", SearchOption.AllDirectories))
					{
						try
						{
							this.mModuleList.Add(file.Directory.Name, section.Name);
						}
						catch (System.ArgumentException ex)
						{
							if (ex.Message.Equals("element already exists"))
								throw new Lunar.Modules.DuplicateModuleException(file.Directory.Name, this.mModuleList[file.Directory.Name], section.Name);
							else
								throw;
						}

					}
				}
			}
		}
		
		public class DuplicateModuleException : ApplicationException
		{
			private string mModuleName;
			private string mSection1;
			private string mSection2;
			
			public DuplicateModuleException(string moduleName, string section1, string section2)
			{
				this.mModuleName = moduleName;
				this.mSection1 = section1;
				this.mSection2 = section2;
			}
			
			public override string Message {
				get {
					string errorMessage = "ERROR:  Duplicate Module name detected!" + Environment.NewLine + "Name: " + this.mModuleName + Environment.NewLine;
					if (this.mSection1.Equals(this.mSection2))
						errorMessage += "Section: " + this.mSection1;
					else
						errorMessage += "Sections: " + this.mSection1 + " and " + this.mSection2;
					
					return errorMessage;
				}
			}

		}
	}
}