// 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.IO;
using System.Text;
using Rauchy.Regionerate.Shared.Components;

namespace Rauchy.Regionerate.ServiceLayer.Components
{
    public sealed class FileDocument : Document
    {
        #region Fields (1) 

        private readonly string _path;

        #endregion Fields 

        #region Constructors (1) 

        /// <summary>
        /// Initializes a new instance of the <see cref="FileDocument"/> class.
        /// </summary>
        /// <param name="path">The path.</param>
        public FileDocument( string path )
            : base( Path.GetFileName( path ), File.ReadAllText( path, Encoding.Default ) )
        {
            _path = path;
        }

        #endregion Constructors 

        #region Properties (1) 

        /// <summary>
        /// Gets or sets the text.
        /// </summary>
        /// <value>The text.</value>
        protected override string Text
        {
            set
            {
                // In order to save on IO, any attempt to set a value which 
                // is identical to the source text will be blocked.
                if ( value == Text.DecodeBrackets() )
                {
                    Output.Inform( "\"{0}\" has not changed", Title );
                }
                else
                {
                    string decodedValue = value.DecodeBrackets();
                    File.WriteAllText( _path, decodedValue, Encoding.Default );
                    base.Text = decodedValue;
                }
            }
        }

        #endregion Properties 
    }
}