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

namespace Sarand.Net.Standard.Base.Interfaces
{
	//=======================================================================
	public class SaInterface : SacsHierarchyItem
	{
		//-------------------------------------------------------------------
		// Columns.
		public enum Column
		{
			Pos = 0,
			// Interface.
			Id,
			Context,
			Category,
			Category_Desc,
			Type,
			Type_Desc,
			Code,
			Caption,
			Active_Y,
			Active_TickCross,
			Active_Ind,
			// Derived properties.
			Process_Count,
			DataItem_Count,
			// Common properties.
			Notes,
			Status,
			Status_Desc,
			Status_Ind,
			CreateOn_Date,
			UpdateOn_Date,
		}

		//-------------------------------------------------------------------
		/// <summary>Properties other than common.</summary>
		public class DataProperties
		{
			public String Context { get; set; } = String.Empty;
			public SaInterfaceCategory Category { get; set; } = SaInterfaceCategory.Unknown;
			public short Type { get; set; } = 0;
			public String Code { get; set; } = String.Empty;
			public String Caption { get; set; } = String.Empty;
		}

		//-------------------------------------------------------------------
		// Data.
		public new class Data : SacsHierarchyItem.Data
		{
			// Data members.
			private readonly DataProperties data = new DataProperties();
			// Construction.
			public Data ()
			{
				Status = DefaultStatus;
			}
			// Properties.
			public String Context
			{
				get { return data.Context; }
				set { CheckChanged(data.Context, value); data.Context = value; }
			}
			public SaInterfaceCategory Category
			{
				get { return data.Category; }
				set { CheckChanged((int)data.Category, (int)value); data.Category = value; }
			}
			public short Type
			{
				get { return data.Type; }
				set { CheckChanged(data.Type, value); data.Type = value; }
			}
			public String Code
			{
				get { return data.Code; }
				set { CheckChanged(data.Code, value); data.Code = value; }
			}
			public String Caption
			{
				get { return data.Caption; }
				set { CheckChanged(data.Caption, value); data.Caption = value; }
			}
			// Flags.
			public bool Active
			{
				get { return GetFlag(Flag_Active); }
				set { SetFlag(Flag_Active, value); }
			}
			// Population.
			internal void PopulateFrom (Data data)
			{
				Context = data.Context;
				Category = data.Category;
				Type = data.Type;
				Code = data.Code;
				Caption = data.Caption;
				base.PopulateFrom(data);
			}
			public Data Clone ()
			{
				Data data = new Data();
				data.PopulateFrom(this);
				return data;
			}
		}

		//-------------------------------------------------------------------
		// Error field - identify properties with validation error.
		public new class ErrField : SacsHierarchyItem.ErrField
		{
			// Identifies the field that has invalid data.
			public ValidValue Context { get; set; } = ValidValue.Valid;
			public ValidValue Category { get; set; } = ValidValue.Valid;
			public ValidValue Type { get; set; } = ValidValue.Valid;
			public ValidValue Code { get; set; } = ValidValue.Valid;
			public ValidValue Caption { get; set; } = ValidValue.Valid;
		}

		//-------------------------------------------------------------------
		// Data members.
		private readonly Data data = new Data();
		// Flags.
		public static readonly Byte Flag_Active = 0x01;

		//-------------------------------------------------------------------
		// Construction.
		public SaInterface (SysId id, String context, SaInterfaceCategory category, short type) :
			base(id)
		{
			base.SetData(data);
			Context = context;
			Category = category;
			Type = type;
			Status = DefaultStatus;
		}

		//-------------------------------------------------------------------
		// Statuses.
		private static readonly List<SaStatus> validStatuses = new List<SaStatus>()
		{
			SaStatus.Active,
		};
		public static SaStatus DefaultStatus { get { return ActiveStatus; } }
		public static SaStatus ActiveStatus { get { return SaStatus.Active; } }
		public static List<SaStatus> ValidStatuses { get { return new List<SaStatus>(validStatuses); } }
		public static DataValue.TriStateType GetStatusTriState (SaStatus status)
		{
			switch (status)
			{
				case SaStatus.Active:
					return Core.DataValue.TriStateType.Green;
				case SaStatus.Deleted:
					return Core.DataValue.TriStateType.Purple;
			}
			return Core.DataValue.TriStateType.Unknown;
		}

		//-------------------------------------------------------------------
		// Properties.
		public Data GetData () { return data.Clone(); }
		public void SetData (Data data)
		{
			String fn = GetType().Name + ".SetData";
			// Properties that cannot be changed if previously specified.
			if (SysId.IsValid(Id) && SysId.ToInt(Id) != SysId.ToInt(data.Id))
				throw new NotSupportedException(fn + " Id cannot be changed");
			if (!StringUtil.IsEmpty(Context) && !Context.Equals(data.Context))
				throw new NotSupportedException(fn + " Context cannot be changed");
			if ((int)Category >= 0 && (int)Category != (int)data.Category)
				throw new NotSupportedException(fn + " Category cannot be changed");
			if (Type >= 0 && Type  != data.Type)
				throw new NotSupportedException(fn + " Type cannot be changed");
			// Populate individual properties to ensure that 'Changed' indicator is kept up to date.
			this.data.PopulateFrom(data);
		}
		public String Context
		{
			get { return data.Context; }
			protected set { data.Context = value; }
		}
		public SaInterfaceCategory Category
		{
			get { return data.Category; }
			protected set { data.Category = value; }
		}
		public short Type
		{
			get { return data.Type; }
			protected set { data.Type = value; }
		}
		public String Code
		{
			get { return data.Code; }
			set { data.Code = value; }
		}
		public String Caption
		{
			get { return data.Caption; }
			set { data.Caption = value; }
		}

		//-------------------------------------------------------------------
		// Flags.
		public bool Active
		{
			get { return GetFlag(Flag_Active); }
			set { SetFlag(Flag_Active, value); }
		}

		//-------------------------------------------------------------------
		// List parameters.
		public enum StatusCat
		{
			Any,
			/// <summary>NB Interface activity controlled by flag rather than status.</summary>
			ActiveOnly,
		}
		/// <summary>
		/// Item list parameters.
		/// </summary>
		public new class Params : SacsHierarchyItem.Params
		{
			public List<SysId> IncludedIds { get; } = new List<SysId>();
			public List<SysId> ExcludedIds { get; } = new List<SysId>();
			public String Context { get; set; }
			public SaInterfaceCategory InterfaceCategory { get; set; } = SaInterfaceCategory.Unknown;
			public List<short> IncludedInterfaceTypes { get; } = new List<short>();
			/// <summary>Exact code match</summary>
			public String Code { get; set; }
			public String CaptionPartial { get; set; }
			/// <summary>Text to parially match code or caption</summary>
			public String InterfaceText { get; set; }
			/// <summary>Active flag</summary>
			public bool ActiveOnly { get; set; } = true;
			public StatusCat StatusCat { get; set; } = StatusCat.Any;
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
	//                                L i s t
	//=======================================================================
	public static class SaInterfaceList
	{
		//-------------------------------------------------------------------
		//                            E x i s t s
		//-------------------------------------------------------------------
		public static bool ExistsByContextCategoryType (this List<SaInterface> interfaces, String context, SaInterfaceCategory interfaceCategory, short interfaceType)
		{
			return interfaces.Exists(item => item.Context.EqualsCI(context) && item.Category == interfaceCategory && item.Type == interfaceType);
		}
		public static bool ExistsByContextCategoryType (this List<SaInterface.Data> interfaces, String context, SaInterfaceCategory interfaceCategory, short interfaceType)
		{
			return interfaces.Exists(item => item.Context.EqualsCI(context) && item.Category == interfaceCategory && item.Type == interfaceType);
		}

		//-------------------------------------------------------------------
		//                           F i n d A l l
		//-------------------------------------------------------------------
		public static List<SaInterface> FindAllByContextCategory (this List<SaInterface> interfaces, String context, SaInterfaceCategory interfaceCategory)
		{
			return interfaces.FindAll(item => item.Context.EqualsCI(context) && item.Category == interfaceCategory);
		}
		public static List<SaInterface.Data> FindAllByContextCategory (this List<SaInterface.Data> interfaces, String context, SaInterfaceCategory interfaceCategory)
		{
			return interfaces.FindAll(item => item.Context.EqualsCI(context) && item.Category == interfaceCategory);
		}
		public static List<SaInterface> FindAllByContextCategoryType (this List<SaInterface> interfaces, String context, SaInterfaceCategory interfaceCategory, short interfaceType)
		{
			return interfaces.FindAll(item => item.Context.EqualsCI(context) && item.Category == interfaceCategory && item.Type == interfaceType);
		}
		public static List<SaInterface.Data> FindAllByContextCategoryType (this List<SaInterface.Data> interfaces, String context, SaInterfaceCategory interfaceCategory, short interfaceType)
		{
			return interfaces.FindAll(item => item.Context.EqualsCI(context) && item.Category == interfaceCategory && item.Type == interfaceType);
		}

		//-------------------------------------------------------------------
	}

	//=======================================================================
}