using Sarand.Core.App;
using Sarand.Core.Base;
using Sarand.Core.Dbas.Base;
using Sarand.OperationsMgr.Web.App;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Sarand.OperationsMgr.Web.Models
{
	//=======================================================================
	public class Model_Base
	{
		//-------------------------------------------------------------------
		// Data members.
		private readonly List<String> infoMessages = new List<string>();
		private readonly List<String> warningMessages = new List<string>();
		private readonly List<String> errorMessages = new List<string>();

		//-------------------------------------------------------------------
		// Protected construction - use derived class.
		protected Model_Base ()
		{
		}

		//-------------------------------------------------------------------
		// Application properties.
		protected SaOperationsMgrWebApp App { get { return SaOperationsMgrWebApp.GetInstance(); } }
		public bool OK { get { return !HasMessages; } }
		public bool AwaitingLogin { get; set; } = true;

		//-------------------------------------------------------------------
		// Session profile.
		public SessionData SessionData { get; set; }

		//-------------------------------------------------------------------
		// Business Object Managers.

		//-------------------------------------------------------------------
		// Version parameter for includes.
		public String HrefVersion
		{
			get
			{
				DateTime versionDate = SacsSystem.AssemblyBuildAt;
				if (!DateUtil.IsValid(versionDate) || SacsSystem.DebugMode)
					versionDate = DateTime.Now;
				return DateUtil.Format(versionDate, "yyyyMMdd" /*+ (SacsSystem.Debug ? "HHmm" : "")*/);
			}
		}
		// Additional includes.
		public List<String> AdditionalFiles_CSS { get; set; } = new List<string>();
		public List<String> AdditionalFiles_JS { get; set; } = new List<string>();

		//-------------------------------------------------------------------
		// Redirection locations.
		public class RedirectLocationData
		{
			// Properties populated in Controller_Base.OnActionExecuted.
			public String Home { get; internal set; }
			public String Home_SessionExpired { get; internal set; }
		}
		public RedirectLocationData RedirectLocation { get; } = new RedirectLocationData();

		//-------------------------------------------------------------------
		// Paging properties.
		private readonly DbQuery.Paging dataPaging = new DbQuery.Paging();
		public bool DataPaged { get { return dataPaging.Paged; } }
		public uint DataPageNo { get { return dataPaging.PageNo; } set { dataPaging.PageNo = value; } }
		public ushort DataPageLength { get { return dataPaging.PageLength; } set { dataPaging.PageLength = value; } }
		public uint DataPageCount { get { return (DataPageLength > 0 ? (uint)Math.Ceiling((decimal)DataItemTotal / DataPageLength) : 0); } }
		public uint DataItemCount { get; set; }
		public uint DataItemTotal { get; set; }

		//-------------------------------------------------------------------
		// Form properties.
		/// <summary>
		/// User session index to identify the site resources, eg. database.
		/// <para>Equivalent to the Site index on the login form.</para>
		/// <para>Populates value on logout form to identify default site for next login.</para>
		/// </summary>
		public ushort SessionIdx { get; set; }
		public String FormAction { get; set; }

		//-------------------------------------------------------------------
		// Message properties.
		public virtual bool ShowMessagesAtTopOfBody { get; } = true;
		public bool HasMessages { get { return (infoMessages.Count > 0 || warningMessages.Count > 0 || errorMessages.Count > 0); } }
		public List<String> InfoMessages { get { return new List<string>(infoMessages); } }
		public List<String> WarningMessages { get { return new List<string>(warningMessages); } }
		public List<String> ErrorMessages { get { return new List<string>(errorMessages); } }

		//-------------------------------------------------------------------
		// Form messages.
		public void AddInfoMessage (String message)
		{
			if (StringUtil.IsEmpty(StringUtil.TrimAll(message))) return;
			infoMessages.Add(message);
		}
		public void AddWarningMessage (String message)
		{
			if (StringUtil.IsEmpty(StringUtil.TrimAll(message))) return;
			warningMessages.Add(message);
		}
		public void AddErrorMessage (String message)
		{
			if (StringUtil.IsEmpty(StringUtil.TrimAll(message))) return;
			errorMessages.Add(message);
		}

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