using Sarand.Net.Standard.Base.Bus;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Dbas;
using Sarand.Net.Standard.Base.ItemOptions;
using Sarand.Net.Standard.Base.UpdateLog;
using Sarand.Net.Standard.Base.Utils;
using System;
using System.Collections.Generic;

namespace Sarand.Net.Standard.Base.Interfaces
{
	//=======================================================================
	public abstract class SaInterfaceConsole : SaErrorStateItem
	{
		//-------------------------------------------------------------------
		// Interface definition.
		public class SaInterfaceDfn
		{
			public SaInterfaceDfn (String context, SaInterfaceCategory category, TypeCodeDesc typeDfn, bool duplicatesAllowed)
			{
				Context = context;
				Category = category;
				TypeDfn = typeDfn;
				DuplicatesAllowed = duplicatesAllowed;
			}
			public String Context { get; } = "";
			public SaInterfaceCategory Category { get; } = SaInterfaceCategory.Unknown;
			public short InterfaceType { get { return (short)TypeDfn.Type; } }
			public TypeCodeDesc TypeDfn { get; } = null;
			public bool DuplicatesAllowed { get; } = false;
		}

		//-------------------------------------------------------------------
		// Data members.
		private readonly List<SaInterfaceDfn> interfaceDfns = new List<SaInterfaceDfn>();

		//-------------------------------------------------------------------
		// Static initialisation.
		static SaInterfaceConsole ()
		{
		}

		//-------------------------------------------------------------------
		// Construction.
		protected SaInterfaceConsole ()
		{
		}
		protected override void Dispose(bool disposing)
		{
			if (disposing)
			{
			}
			base.Dispose(disposing);
		}

		//-------------------------------------------------------------------
		// Properties.
		public abstract short InterfaceDataType { get; }
		public abstract SaItemOptionConsole ItemOptionConsole { get; }
		public abstract SaUpdateLogConsole UpdateLogConsole { get; }
		// Database.
		public abstract bool DatabaseIsValid { get; }
		public abstract bool CanUpdateDatabase { get; }

		//---------------------------------------------------------------
		// Manage interfaces - displays dialog.
		public abstract bool ManageInterfaces (String interfaceContext, bool userCanManageInterfaces, bool userCanProcessInterfaces, DbUpdateInfo dbUpdateInfo);

		//---------------------------------------------------------------
		// Utilities.
		public abstract String GetItemTypeDesc (short itemType);
		public abstract String GetItemCaption (ItemId itemId);

		//---------------------------------------------------------------
		// Interface item option definitions.
		public abstract List<SaItemOptionDfn> GetInterfaceItemOptionDfns (SaInterfaceCategory interfaceCategory, short interfaceType);
		public abstract List<SaItemOptionDfn> GetInterfaceItemOptionDfns (SysId interfaceId);

		//-------------------------------------------------------------------
		//            I n t e r f a c e   R e g i s t r a t i o n
		//-------------------------------------------------------------------
		public bool HasRegisteredInterfaces ()
		{
			return (interfaceDfns.Count > 0);
		}
		protected void RegisterInterfaces (String context, SaInterfaceCategory category, List<TypeCodeDesc> types, bool allowDuplicates)
		{
			foreach (TypeCodeDesc typeDfn in types)
			{
				// Remove any matches from the list.
				interfaceDfns.RemoveAll(item => item.Context.EqualsCI(context) && item.Category == category && item.InterfaceType == typeDfn.Type);
				// Add interface definition to list.
				SaInterfaceDfn interfaceDfn = new SaInterfaceDfn(context, category, typeDfn, allowDuplicates);
				interfaceDfns.Add(interfaceDfn);
			}
		}
		public void ClearRegisteredInterfaces ()
		{
			interfaceDfns.Clear();
		}
		public List<SaInterfaceDfn> GetInterfaceDfns (String context, bool createOnly)
		{
			List<SaInterfaceDfn> interfaceDfns = new List<SaInterfaceDfn>();
			foreach (SaInterfaceDfn dfn in this.interfaceDfns.FindAll(item => item.Context.EqualsCI(context)))
			{
				if (!createOnly || CanCreateInterface(dfn.Context, dfn.Category, dfn.InterfaceType))
					interfaceDfns.Add(dfn);
			}
			return interfaceDfns;
		}
		public bool HasInterfaceDfns (String context, SaInterfaceCategory interfaceCategory, short interfaceType, bool createOnly)
		{
			List<SaInterfaceDfn> interfaceDfns = new List<SaInterfaceDfn>();
			foreach (SaInterfaceDfn dfn in this.interfaceDfns.FindAll(item => item.Context.EqualsCI(context) && ((int)interfaceCategory < 1 || item.Category == interfaceCategory) && ((int)interfaceType < 1 || item.InterfaceType == interfaceType)))
			{
				if (!createOnly || CanCreateInterface(dfn.Context, dfn.Category, dfn.InterfaceType))
					return true;
			}
			return false;
		}
		public List<SaInterfaceDfn> GetInterfaceDfns (String context, SaInterfaceCategory interfaceCategory, short interfaceType, bool createOnly)
		{
			List<SaInterfaceDfn> interfaceDfns = new List<SaInterfaceDfn>();
			foreach (SaInterfaceDfn dfn in this.interfaceDfns.FindAll(item => item.Context.EqualsCI(context) && ((int)interfaceCategory < 1 || item.Category == interfaceCategory) && ((int)interfaceType < 1 || item.InterfaceType == interfaceType)))
			{
				if (!createOnly || CanCreateInterface(dfn.Context, dfn.Category, dfn.InterfaceType))
					interfaceDfns.Add(dfn);
			}
			return interfaceDfns;
		}
		public virtual String GetInterfaceTypeDesc (String context, SaInterfaceCategory category, short type)
		{
			SaInterfaceDfn dfn = interfaceDfns.Find(item => item.Context.EqualsCI(context) && item.Category == category && item.InterfaceType == type);
			if (dfn != null)
				return dfn.TypeDfn.Desc;
			return "";
		}

		//-------------------------------------------------------------------
		//          I n t e r f a c e   A c c e s s   C o n t r o l
		//-------------------------------------------------------------------
		public abstract bool CanCreateInterfaces ();
		public abstract bool CanCreateInterfaces (String context, SaInterfaceCategory interfaceCategory);
		public abstract bool CanCreateInterface (String context, SaInterfaceCategory interfaceCategory, short interfaceType);
		public abstract bool AreMultipleInterfaceInstancesAllowed (String context, SaInterfaceCategory interfaceCategory, short interfaceType);
		public abstract bool AreMultipleActiveInterfacesAllowed (String context, SaInterfaceCategory interfaceCategory);
		public abstract bool CanUpdateInterface (SaInterface interfaceObj);
		public abstract bool CanCopyInterfaces ();
		public abstract bool CanCopyInterfaces (String context, SaInterfaceCategory interfaceCategory);
		public abstract bool CanCopyInterface (String context, SaInterfaceCategory interfaceCategory, short interfaceType);
		public abstract bool CanCopyInterface (SaInterface interfaceObj);
		public abstract bool IsCompatibleForInterfaceCopy (String context, SaInterfaceCategory interfaceCategory, int typeFrom, int typeTo);
		public abstract bool CanRemoveInterface (SaInterface interfaceObj);
		// Interface management.
		public abstract SysId CreateInterface (String context, SaInterfaceCategory interfaceCategory, short interfaceType, String code, String caption, DbUpdateInfo dbUpdateInfo);
		// Associated events.
		public abstract void OnInterfaceCreated (SysId interfaceId);
		public abstract void OnInterfaceUpdated (SysId interfaceId);
		public abstract void OnInterfaceRemoved (SysId interfaceId);
		// Clear configuration options, data items, processes etc.
		public abstract bool ClearDependentData (SaInterface interfaceObj, DbUpdateInfo dbUpdateInfo);
		//---------------------------------------------------------------
		// Process interface.
		public abstract bool CanProcessInterface (SaInterface interfaceObj);
		public abstract bool ProcessInterface (SaInterface interfaceObj, DbUpdateInfo dbUpdateInfo);
		//---------------------------------------------------------------
		// Retrieve interfaces.
		public abstract SaInterface GetInterfaceById (SysId interfaceId);
		public abstract SaInterface GetInterface (SaInterface.Params prmInterface);
		public abstract List<SaInterface> GetInterfaceList (SaInterface.Params prmInterface);
		//---------------------------------------------------------------
		// Conversion between Interface Category & Code and the equivalent database Id.
		public abstract SysId GetInterfaceIdForContextCategoryType (String context, SaInterfaceCategory interfaceCategory, short interfaceType);
		public abstract SysId GetInterfaceIdForContextCategoryCode (String context, SaInterfaceCategory interfaceCategory, String code);
		public abstract SaInterfaceCategory  GetCategoryForInterfaceId (SysId interfaceId);
		public abstract String GetCodeForInterfaceId (SysId interfaceId);

		//---------------------------------------------------------------
		//             I n t e r f a c e   P r o c e s s e s
		//---------------------------------------------------------------
		// Identify the highest sequence currently in use for an interface.
		public abstract int GetMaxProcessSequence (SysId interfaceId, SaInterfaceProcessDirection processDirection, bool completedOnly = true);
		// Create new process and imediately store details on database (status set to 'In Progress').
		public abstract SaInterfaceProcess StartInterfaceProcess (SysId interfaceId, SaInterfaceProcessDirection eDirection, String batchRef, DateTime batchAt, int sequence, DbUpdateInfo dbUpdateInfo);
		// Retrieve a process using its identity (restricted by interface).
		public abstract SaInterfaceProcess GetInterfaceProcess (SysId interfaceId, SysId interfaceProcessId);
		// Update the details for a process.
		public abstract bool StoreInterfaceProcess (SaInterfaceProcess interfaceProcess, DbUpdateInfo dbUpdateInfo);

		//---------------------------------------------------------------
		//      I n t e r f a c e   P r o c e s s   M e s s a g e s
		//---------------------------------------------------------------
		public abstract bool LogInterfaceProcessMessage (SysId interfaceProcessId, DbUpdateInfo dbUpdateInfo, String message, SaMessageLevel messageLevel = SaMessageLevel.Info, String Filename = "", int LineNumber = 0, ItemId ItemId = null);

		//---------------------------------------------------------------
		//            I n t e r f a c e   D a t a   I t e m s
		//---------------------------------------------------------------
		public abstract bool ItemHasDataItems (ItemId itemId);
		public abstract bool InterfaceDataItemExistsByRef (SysId interfaceId, SaInterfaceProcessDirection processDirection, short itemType, String externalReference);
		public abstract SaInterfaceDataItem CreateInterfaceDataItem (SysId interfaceId, SaInterfaceProcessDirection processDirection, ItemId itemId, String externalReference);
		public abstract SaInterfaceDataItem GetInterfaceDataItem (SysId interfaceDataItemId);
		/// <summary><para>Fails if more than 1 matching data item.</para></summary>
		public abstract SaInterfaceDataItem GetInterfaceDataItemByItemRef (SysId interfaceId, SaInterfaceProcessDirection processDirection, ItemId itemId, String externalReference);
		/// <summary><para>Fails if more than 1 matching data item.</para></summary>
		public abstract SaInterfaceDataItem GetInterfaceDataItemByRef (SysId interfaceId, SaInterfaceProcessDirection processDirection, short itemType, String externalReference);
		/// <summary><para>Fails if more than 1 matching data item.</para></summary>
		public abstract SaInterfaceDataItem GetInterfaceDataItemByItem (SysId interfaceId, SaInterfaceProcessDirection processDirection, ItemId itemId);
		public abstract List<SaInterfaceDataItem> GetInterfaceDataItemsByItem (SysId interfaceId, SaInterfaceProcessDirection processDirection, ItemId itemId);
		public abstract List<SaInterfaceDataItem> GetInterfaceDataItemsByRef (SysId interfaceId, SaInterfaceProcessDirection processDirection, short itemType, String externalReference);
		public abstract bool StoreInterfaceDataItem (SaInterfaceDataItem interfaceDataItem, DbUpdateInfo dbUpdateInfo);
		public abstract bool StoreInterfaceDataItems (List<SaInterfaceDataItem> interfaceDataItems, DbUpdateInfo dbUpdateInfo);
		public abstract bool ClearInterfaceDataItem (SaInterfaceDataItem interfaceDataItem, DbUpdateInfo dbUpdateInfo);
		public abstract bool ClearInterfaceDataItems (ItemId itemId, DbUpdateInfo dbUpdateInfo);

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