//
// System.Configuration.TimeSpanConfigurationProperty.cs
//
// Authors:
//  Lluis Sanchez Gual (lluis@novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//

#if NET_2_0
using System;
using System.ComponentModel;

namespace System.Configuration
{
	public sealed class TimeSpanConfigurationProperty : ConfigurationProperty
	{
		TimeSpanSerializedFormat _format;
		TimeSpanPropertyFlags _tsflags;
		
		public TimeSpanConfigurationProperty (string name, TimeSpan defaultValue, ConfigurationPropertyOptions flags)
			: base (name, typeof(TimeSpan), defaultValue, flags)
		{
		}

		public TimeSpanConfigurationProperty (string name, TimeSpan defaultValue, TimeSpanSerializedFormat format, ConfigurationPropertyOptions flags)
			: base (name, typeof(TimeSpan), defaultValue, flags)
		{
			_format = format;
		}

		public TimeSpanConfigurationProperty (string name, TimeSpan defaultValue, TimeSpanSerializedFormat format, TimeSpanPropertyFlags tsflags, ConfigurationPropertyOptions flags)
			: base (name, typeof(TimeSpan), defaultValue, flags)
		{
			_format = format;
			_tsflags = tsflags;
		}

		protected internal override object ConvertFromString (string value)
		{
			TimeSpan span;	
			switch (_format) {
				case TimeSpanSerializedFormat.Seconds:
					span = TimeSpan.FromSeconds (int.Parse (value));
					break;
				case TimeSpanSerializedFormat.Minutes:
					span = TimeSpan.FromMinutes (int.Parse (value));
					break;
				default:
					span = TimeSpan.Parse (value);
					break;
			}
			Check (span);
			return span;
		}

		protected internal override string ConvertToString (object value)
		{
			TimeSpan span = (TimeSpan)value;
			Check (span);
			switch (_format) {
				case TimeSpanSerializedFormat.Seconds: return span.TotalSeconds.ToString ();
				case TimeSpanSerializedFormat.Minutes: return span.TotalMinutes.ToString ();
				default: return value.ToString ();
			}
		}
		
		void Check (TimeSpan span)
		{
			if (span.Ticks < 0 && (_tsflags & TimeSpanPropertyFlags.AllowNegative) == 0)
				throw new ConfigurationException ("TimeSpan value can't be negative");
			else if (span == TimeSpan.Zero && (_tsflags & TimeSpanPropertyFlags.ProhibitZero) != 0)
				throw new ConfigurationException ("TimeSpan value can't be zero");
			else if (span == TimeSpan.MaxValue && (_tsflags & TimeSpanPropertyFlags.AllowInfinite) == 0)
				throw new ConfigurationException ("TimeSpan value can't be infinite");
		}
	}
}
#endif