// TwitterFactory.cs created with MonoDevelop
// User: raul@bgta.net at 23:07 25/05/2008
//

using System;
using System.Web;
using System.Net;
using gTwitter.Core.Serialization;
using System.Collections;

namespace gTwitter.Core
{
	/// <summary>
	/// Twitter Factory Class
	/// </summary>
	public class TwitterFactory : IDisposable
	{
#region "Private variables"
		private TwitterSettings _settings = new TwitterSettings();
		private ArrayList _sessions = new ArrayList();
		private bool Disposed = false;
#endregion
#region "Public properties"
		/// <summary>
		/// Twitter Factory Settings
		/// </summary>
		public TwitterSettings Settings {
			get {
				return _settings;
			}
			set {
				_settings = value;
			}
		}
#endregion
		/// <summary>
		/// Constructor
		/// </summary>
		public TwitterFactory()
		{
		}
		/// <summary>
		/// Constructor
		/// </summary>
		/// <param name="username">
		/// A <see cref="System.String"/>. Twitter username.
		/// </param>
		/// <param name="password">
		/// A <see cref="System.String"/>. Twitter password.
		/// </param>
		public TwitterFactory(string username, string password)
		{
			this.Settings.Username = username;
			this.Settings.Password = password;
		}
#region "Events"
		/// <summary>
		/// Raised on Dispose
		/// </summary>
		public event EventHandler OnDispose;
		
		internal virtual void OnSessionClosed(TwitterSession session, EventArgs e)
		{
			_sessions.Remove(session);
		}
#endregion
#region "IDisposable"
		/// <summary>
		/// Automatcly called when object is Disposed. <see cref="System.IDisposable"/>
		/// </summary>
		/// <remarks><see cref="System.IDisposable"/></remarks>
		public void Dispose()
		{
			if(!this.Disposed)
			{
				foreach(TwitterSession session in _sessions)
				{
					session.Dispose();
				}
				_sessions.Clear();
				_settings = null;
			}
			this.Disposed = true;
			this.OnDispose(this, new EventArgs());
		}
#endregion
		/// <summary>
		/// Open a new Twitter Session using the current Settings
		/// </summary>
		/// <returns>
		/// A <see cref="TwitterSession"/> Twitter Session.
		/// </returns>
		public TwitterSession OpenSession()
		{
			TwitterSession session = new TwitterSession(this);
			
			_sessions.Add(session);
			
			session.OnDispose += this.OnSessionClosed;
			return session;
		}
	}
}