using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Generator
{
	partial class CodeParser
	{
		public class Class
		{
			public string Name;
			public string InterfaceString;

			public class Function
			{
				public string Name;
				public string DuplicateName;
				public Dictionary<string, string> Arguments = new Dictionary<string, string>();

				public string ReturnType;
				public string CallResult;
			}

			public List<Function> Functions = new List<Function>();			

			internal Function AddFunction( string funcName, string returnType, string args )
			{
				if ( funcName == "Init" ) funcName = "DoInit";
				if ( funcName == "Shutdown" ) funcName = "DoShutdown";

				var f = new Function
				{
					Name = funcName,
					ReturnType = returnType
				};

				args = Regex.Replace( args, "", "" );

				foreach ( var arg in args.Split( new[] { ',' }, StringSplitOptions.RemoveEmptyEntries ) )
				{
					var m = Regex.Match( arg.Trim(), @"(.+?[ |\*|\&])?([a-zA-Z0-9_]+?)( = (.+?))?$" );

					var t = m.Groups[1].Value.Trim();
					var n = m.Groups[2].Value.Trim();

					t = Cleanup.ConvertType( t );

					f.Arguments.Add( n, t );
				}

				Functions.Add( f );

				return f;
			}

			public void PostProcess()
			{
				var duplicateFunctions = Functions
											.GroupBy( x => x.Name )
											.Where( x => x.Count() > 1 );

				foreach ( var group in duplicateFunctions )
				{
					var g = group.ToArray();
					for ( int i=0; i< g.Count(); i++ )
					{
						g[i].DuplicateName = g[i].Name;
						g[i].Name = $"{g[i].Name}{i+1}";
					}
				}
			}
		}

	}
}