// Copyright (c) 2007 Omer Rauchwerger (a.k.a rauchy) (omer@rauchy.net)
// All rights reserved.
//
// This file is part of Regionerate.
// 
// This program is free software; you can redistribute it and/or modify it 
// under the terms of the GNU 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 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;
using Rauchy.Regionerate.ServiceLayer.Components;
using Rauchy.Regionerate.ServiceLayer.Components.Services;

namespace Rauchy.Regionerate.Presentation.Console
{
    /// <summary>
    /// A utility that activates Regionerate's service by command-line.
    /// </summary>
    internal class Program
    {
        #region Methods (3)

        private static void DoFile( Arguments arguments )
        {
            DocumentService service;
            if ( arguments.UseDefaultCodeLayout )
            {
                service = new DocumentService();
            }
            else
            {
                service = new DocumentService( arguments.CustomCodeLayoutPath );
            }

            Document document = new FileDocument( arguments.TargetFile );
            service.Process( document );
        }

        private static void DoProject( Arguments arguments )
        {
            ProjectService service;
            if ( arguments.UseDefaultCodeLayout )
            {
                service = new CSharpProjectService( arguments.IgnoredFiles );
            }
            else
            {
                service = new CSharpProjectService( arguments.CustomCodeLayoutPath, arguments.IgnoredFiles );
            }

            service.Process( arguments.TargetFile );
        }

        private static void DoSolution( Arguments arguments )
        {
            SolutionService service;
            if ( arguments.UseDefaultCodeLayout )
            {
                service = new SolutionService( arguments.IgnoredProjects, arguments.IgnoredFiles );
            }
            else
            {
                service = new SolutionService( arguments.CustomCodeLayoutPath, arguments.IgnoredProjects,
                                               arguments.IgnoredFiles );
            }

            service.Process( arguments.TargetFile );
        }

        private static void Main( string[] args )
        {
            try
            {
                UserInterface.ShowHeader();

                Arguments arguments;
                if ( Arguments.TryParse( args ) )
                {
                    arguments = Arguments.Parse( args );
                    if ( arguments.ShowHelp )
                    {
                        UserInterface.ShowSyntax();
                        return;
                    }

                    UserInterface.Load( arguments );
                }
                else
                {
                    UserInterface.ShowSyntax();
                    return;
                }

                switch ( ( int )arguments.TargetType )
                {
                    case ( int )TargetType.File:
                        DoFile( arguments );
                        break;
                    case ( int )TargetType.Project:
                        DoProject( arguments );
                        break;
                    case ( int )TargetType.Solution:
                        DoSolution( arguments );
                        break;
                }
            }
            catch ( Exception ex )
            {
                System.Console.WriteLine( "The following exception has been raised:" );
                System.Console.WriteLine( "{0} at {1}.", ex.Message, ex.TargetSite );
            }
            finally
            {
                UserInterface.ShowFooter();
            }
        }

        #endregion
    }
}