using Newtonsoft.Json;
using Sarand.BusinessMgr.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Dbas;
using Sarand.Net.Standard.Base.Helpers;
using System;

namespace Sarand.BusinessMgr.Net.Standard.Base.App
{
	//=======================================================================
	/// <summary>
	/// Basic user session data, shared by Portal and Control applications.
	/// </summary>
	public abstract class SbmSessionData : ISbmUserContext
	{
		//-------------------------------------------------------------------
		// Definitions.

		// User.
		public class UserData
		{
			protected UserData() { }
			protected UserData(SbmSessionContext sessionContext)
			{
			}
			protected UserData(UserData userData)
			{
				Title = userData.Title;
				FirstName = userData.FirstName;
				LastName = userData.LastName;
				DisplayName = userData.DisplayName;
				EmailAddress = userData.EmailAddress;
			}
			// Properties.
			public String Title { get; protected set; }
			public String FirstName { get; protected set; }
			public String LastName { get; protected set; }
			public String DisplayName { get; protected set; }
			public String EmailAddress { get; protected set; }
			// Refresh properties.
			protected bool Refresh()
			{
				return true;
			}
		}

		//-------------------------------------------------------------------
		// Data members.
		private static long sessionIdxNext { get; set; } = SacsRandomHelper.GetInt32(100001, 199999);
		private static long dataIdxNext { get; set; } = 1000001;

		//-------------------------------------------------------------------
		// Construction.
		/// <summary>
		/// Constructor to persist the Session index, eg. for deserialisation from Session.
		/// <para>- Session index of zero indicates sessionless data, eg. background tasks.</para>
		/// <para>- Session index less than zero will assign a new value.</para>
		/// </summary>
		protected SbmSessionData(long sessionIdx, SbmSessionContext sessionContext)
		{
			SessionIdx = sessionIdx >= 0 ? sessionIdx : sessionIdxNext++;
			DataIdx = dataIdxNext++;
			SessionContext = sessionContext;
		}
		/// <summary>
		/// Main constructor.
		/// <para>- SessionContext must be supplied.</para>
		/// </summary>
		protected SbmSessionData(SbmSessionContext sessionContext)
		{
			SessionIdx = sessionIdxNext++;
			DataIdx = dataIdxNext++;
			SessionContext = sessionContext;
		}

		//-------------------------------------------------------------------
		// Properties.

		/// <summary>
		/// Session Index - assigned in sequence and persistent when data is serialised/deserialised.
		/// </summary>
		public long SessionIdx { get; }
		/// <summary>
		/// Data Index - assigned in sequence for each object constructed.
		/// </summary>
		public long DataIdx { get; }

		// Session context.
		public SbmSessionContext SessionContext { get; }

		// User properties.
		[JsonIgnore]
		public abstract String UserEmailAddress { get; }
		[JsonIgnore]
		public abstract String UserDisplayName { get; }
		[JsonIgnore]
		public abstract bool ValidUser { get; }
		[JsonIgnore]
		public abstract DbUpdateInfo DbUpdateInfo { get; }


		//-------------------------------------------------------------------
	}
	//=======================================================================
}