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

namespace Sarand.BusinessMgr.Net.Standard.Base.Bus
{
	//=======================================================================
	public abstract class SbmVehicle : SbmHierarchyItem
	{
		//-------------------------------------------------------------------
		// Columns.
		public enum Column
		{
			Pos,
			Id,
			// Vehicle Class.
			VehicleClass_Id,
			VehicleClass_MakeCode, VehicleClass_MakeDesc,
			VehicleClass_Model,
			VehicleClass_Derivative, VehicleClass_DescBrief,
			VehicleClass_Type, VehicleClass_TypeDesc,
			VehicleClass_CategoryCode, VehicleClass_CategoryDesc,
			VehicleClass_FuelTypeDesc, VehicleClass_OdometerUnitsDesc,
			VehicleClass_Seats,
			VehicleClass_InsuranceCode, VehicleClass_InsuranceDesc,
			VehicleClass_Notes,
			// Identity.
			RegNumber,
			RegNumberPrev,
			Vin,
			// Model.
			CapCode,
			KeyNumber,
			KeyLocation,
			EngineNumber,
			BuildOn,
			FirstRegisterOn,
			RegisterOn,
			PurchaseOdo,
			TachoCode,
			TachoId,
			LastServiceOdo,
			LastServiceOn,
			NextServiceOdo,
			NextServiceOn,
			MotOn,
			MotNo,
			NextTaxOn,
			LatestOdo,
			LatestOdoOn,
			HpiAlert,
			EventCount,         // Derived values.
			FeatureCount,
			HpiCheckCount,
			// Common properties.
			Notes,
			Flag,
			Status,
			Status_Ind,
			Status_Desc,
			CreateOn_Date,
			UpdateOn_Date,
		}

		//-------------------------------------------------------------------
		/// <summary>Properties other than common.</summary>
		public class DataProperties
		{
			public String AssetSerial { get; set; } = "";
			public SysId VehicleClassId { get; set; } = new SysId();
			public String RegNumber { get; set; } = "";
			public String Vin { get; set; } = "";
			public String CapCode { get; set; } = "";
			public String KeyNumber { get; set; } = "";
			public String KeyLocation { get; set; } = "";
			public String EngineNumber { get; set; } = "";
			// Specification.
			public Int16 EngineCapacity { get; set; } = 0;
			public Int16 Seats { get; set; } = 0;
			public Int16 Weight { get; set; } = 0;
			public Int16 ManufactureYear { get; set; } = 0;
			public DateTime BuildOn { get; set; } = DateTime.MinValue;
			public DateTime FirstRegisterOn { get; set; } = DateTime.MinValue;
			public DateTime RegisterOn { get; set; } = DateTime.MinValue;
			public String RegNumberPrev { get; set; } = "";
			public Int32 PurchaseOdo { get; set; } = 0;
			public String TachoCode { get; set; } = "";
			public String TachoId { get; set; } = "";
			// Service.
			public Int32 LastServiceOdo { get; set; } = 0;
			public DateTime LastServiceOn { get; set; } = DateTime.MinValue;
			public Int32 NextServiceOdo { get; set; } = 0;
			public DateTime NextServiceOn { get; set; } = DateTime.MinValue;
			public DateTime MotOn { get; set; } = DateTime.MinValue;
			public String MotNo { get; set; } = "";
			public DateTime NextTaxOn { get; set; } = DateTime.MinValue;
			public Int32 LatestOdo { get; set; } = 0;
			public DateTime LatestOdoOn { get; set; } = DateTime.MinValue;
		}

		// Data.
		public new class Data : SacsHierarchyItem.Data
		{
			// Data members.
			private readonly DataProperties data = new DataProperties();
			// Construction.
			public Data()
			{
				Status = DefaultStatus;
			}

			public String AssetSerial
			{
				get { return data.AssetSerial; }
				set { CheckChanged(data.AssetSerial, value); data.AssetSerial = value; }
			}
			public SysId VehicleClassId
			{
				get { return data.VehicleClassId; }
				set { CheckChanged(data.VehicleClassId, value); data.VehicleClassId = value; }
			}
			public String RegNumber
			{
				get { return data.RegNumber; }
				set { CheckChanged(data.RegNumber, value); data.RegNumber = value; }
			}
			public String Vin
			{
				get { return data.Vin; }
				set { CheckChanged(data.Vin, value); data.Vin = value; }
			}
			public String CapCode
			{
				get { return data.CapCode; }
				set { CheckChanged(data.CapCode, value); data.CapCode = value; }
			}
			public String KeyNumber
			{
				get { return data.KeyNumber; }
				set { CheckChanged(data.KeyNumber, value); data.KeyNumber = value; }
			}
			public String KeyLocation
			{
				get { return data.KeyLocation; }
				set { CheckChanged(data.KeyLocation, value); data.KeyLocation = value; }
			}
			public String EngineNumber
			{
				get { return data.EngineNumber; }
				set { CheckChanged(data.EngineNumber, value); data.EngineNumber = value; }
			}
			public short EngineCapacity
			{
				get { return data.EngineCapacity; }
				set { CheckChanged(data.EngineCapacity, value); data.EngineCapacity = value; }
			}
			public short Seats
			{
				get { return data.Seats; }
				set { CheckChanged(data.Seats, value); data.Seats = value; }
			}
			public short Weight
			{
				get { return data.Weight; }
				set { CheckChanged(data.Weight, value); data.Weight = value; }
			}

			public short ManufactureYear
			{
				get { return data.ManufactureYear; }
				set { CheckChanged(data.ManufactureYear, value); data.ManufactureYear = value; }
			}
			public DateTime BuildOn
			{
				get { return data.BuildOn; }
				set { CheckChanged(data.BuildOn, value); data.BuildOn = value; }
			}
			public DateTime FirstRegisterOn
			{
				get { return data.FirstRegisterOn; }
				set { CheckChanged(data.FirstRegisterOn, value); data.FirstRegisterOn = value; }
			}
			public DateTime RegisterOn
			{
				get { return data.RegisterOn; }
				set { CheckChanged(data.RegisterOn, value); data.RegisterOn = value; }
			}
			public String RegNumberPrev
			{
				get { return data.RegNumberPrev; }
				set { CheckChanged(data.RegNumberPrev, value); data.RegNumberPrev = value; }
			}
			public Int32 PurchaseOdo
			{
				get { return data.PurchaseOdo; }
				set { CheckChanged(data.PurchaseOdo, value); data.PurchaseOdo = value; }
			}
			public String TachoCode
			{
				get { return data.TachoCode; }
				set { CheckChanged(data.TachoCode, value); data.TachoCode = value; }
			}
			public String TachoId
			{
				get { return data.TachoId; }
				set { CheckChanged(data.TachoId, value); data.TachoId = value; }
			}
			public Int32 LastServiceOdo
			{
				get { return data.LastServiceOdo; }
				set { CheckChanged(data.LastServiceOdo, value); data.LastServiceOdo = value; }
			}
			public DateTime LastServiceOn
			{
				get { return data.LastServiceOn; }
				set { CheckChanged(data.LastServiceOn, value); data.LastServiceOn = value; }
			}
			public Int32 NextServiceOdo
			{
				get { return data.NextServiceOdo; }
				set { CheckChanged(data.NextServiceOdo, value); data.NextServiceOdo = value; }
			}

			public DateTime NextServiceOn
			{
				get { return data.NextServiceOn; }
				set { CheckChanged(data.NextServiceOn, value); data.NextServiceOn = value; }
			}
			public DateTime MotOn
			{
				get { return data.MotOn; }
				set { CheckChanged(data.MotOn, value); data.MotOn = value; }
			}
			public String MotNo
			{
				get { return data.MotNo; }
				set { CheckChanged(data.MotNo, value); data.MotNo = value; }
			}
			public DateTime NextTaxOn
			{
				get { return data.NextTaxOn; }
				set { CheckChanged(data.NextTaxOn, value); data.NextTaxOn = value; }
			}
			public Int32 LatestOdo
			{
				get { return data.LatestOdo; }
				set { CheckChanged(data.LatestOdo, value); data.LatestOdo = value; }
			}
			public DateTime LatestOdoOn
			{
				get { return data.LatestOdoOn; }
				set { CheckChanged(data.LatestOdoOn, value); data.LatestOdoOn = value; }
			}

			internal void PopulateFrom(Data data)
			{
				AssetSerial = data.AssetSerial;
				VehicleClassId = data.VehicleClassId;
				RegNumber = data.RegNumber;
				Vin = data.Vin;
				CapCode = data.CapCode;
				KeyNumber = data.KeyNumber;
				KeyLocation = data.KeyLocation;
				EngineNumber = data.EngineNumber;
				EngineCapacity = data.EngineCapacity;
				Seats = data.Seats;
				Weight = data.Weight;
				ManufactureYear = data.ManufactureYear;
				BuildOn = data.BuildOn;
				FirstRegisterOn = data.FirstRegisterOn;
				RegisterOn = data.RegisterOn;
				RegNumberPrev = data.RegNumberPrev;
				PurchaseOdo = data.PurchaseOdo;
				TachoCode = data.TachoCode;
				TachoId = data.TachoId;
				LastServiceOdo = data.LastServiceOdo;
				LastServiceOn = data.LastServiceOn;
				NextServiceOdo = data.NextServiceOdo;
				NextServiceOn = data.NextServiceOn;
				MotOn = data.MotOn;
				MotNo = data.MotNo;
				NextTaxOn = data.NextTaxOn;
				LatestOdo = data.LatestOdo;
				LatestOdoOn = data.LatestOdoOn;
				base.PopulateFrom(data);
			}
			public Data Clone()
			{
				Data data = new Data();
				data.PopulateFrom(this);
				return data;
			}
		}

		public new class ErrField : SacsHierarchyItem.ErrField
		{
			// Identifies the field that has invalid data.
			public ValidValue AssetSerial { get; set; } = ValidValue.Valid;
			public ValidValue VehicleClassId { get; set; } = ValidValue.Valid;
			public ValidValue RegNumber { get; set; } = ValidValue.Valid;
			public ValidValue Vin { get; set; } = ValidValue.Valid;
			public ValidValue CapCode { get; set; } = ValidValue.Valid;
			public ValidValue KeyNumber { get; set; } = ValidValue.Valid;
			public ValidValue KeyLocation { get; set; } = ValidValue.Valid;
			public ValidValue EngineNumber { get; set; } = ValidValue.Valid;
			public ValidValue EngineCapacity { get; set; } = ValidValue.Valid;
			public ValidValue Seats { get; set; } = ValidValue.Valid;
			public ValidValue Weight { get; set; } = ValidValue.Valid;
			public ValidValue ManufactureYear { get; set; } = ValidValue.Valid;
			public ValidValue BuildOn { get; set; } = ValidValue.Valid;
			public ValidValue FirstRegisterOn { get; set; } = ValidValue.Valid;
			public ValidValue RegisterOn { get; set; } = ValidValue.Valid;
			public ValidValue RegNumberPrev { get; set; } = ValidValue.Valid;
			public ValidValue PurchaseOdo { get; set; } = ValidValue.Valid;
			public ValidValue TachoCode { get; set; } = ValidValue.Valid;
			public ValidValue TachoId { get; set; } = ValidValue.Valid;
			public ValidValue LastServiceOdo { get; set; } = ValidValue.Valid;
			public ValidValue LastServiceOn { get; set; } = ValidValue.Valid;
			public ValidValue NextServiceOdo { get; set; } = ValidValue.Valid;
			public ValidValue NextServiceOn { get; set; } = ValidValue.Valid;
			public ValidValue MotOn { get; set; } = ValidValue.Valid;
			public ValidValue MotNo { get; set; } = ValidValue.Valid;
			public ValidValue NextTaxOn { get; set; } = ValidValue.Valid;
			public ValidValue LatestOdo { get; set; } = ValidValue.Valid;
			public ValidValue LatestOdoOn { get; set; } = ValidValue.Valid;
		}

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

		//-------------------------------------------------------------------
		// Construction.
		protected SbmVehicle(SysId id) : base(id)
		{
			base.SetData(data);
			//Database = database;
			Status = DefaultStatus;
		}

		//-------------------------------------------------------------------
		// Vehicle status.
		private static readonly List<SaStatus> vehicleStatuses = new List<SaStatus>()
		{
			SaStatus.Active,
			SaStatus.Cancelled,
		};
		public static SaStatus DefaultStatus { get { return SaStatus.Current; } }
		public static List<SaStatus> ValidStatuses { get { return new List<SaStatus>(vehicleStatuses); } }
		public static DataValue.TriStateType GetStatusTriState(SaStatus status)
		{
			switch (status)
			{
				case SaStatus.Active:
					return DataValue.TriStateType.Green;
				case SaStatus.Awaiting:
					return DataValue.TriStateType.Amber;
				case SaStatus.Disabled:
					return DataValue.TriStateType.Red;
				case SaStatus.Cancelled:
					return DataValue.TriStateType.Red;
				case SaStatus.Deleted:
					return DataValue.TriStateType.Purple;
			}
			return DataValue.TriStateType.Unknown;
		}

		//-------------------------------------------------------------------
		// Utilities.
		public SbmItemId GetItemId()
		{
			return new SbmItemId(Sbm.ItemType.Vehicle, Id);
		}

		public static bool IsValidRegistration(string value)
		{
			if (StringUtil.IsBlank(value)) return false;
			if (!StringUtil.IsAlphaNumeric(value)) return false;
			if (value.Length < 2 || value.Length > 7) return false;  /* 'A1', 'ABC123', 'A123XYZ', 'AB12XYZ' */
			// Registration must contain at least one letter and one number.
			int letterCount = 0, numberCount = 0;
			foreach (char c in value)
			{
				if (char.IsLetter(c)) letterCount++;
				if (char.IsDigit(c)) numberCount++;
			}
			if (letterCount == 0 || numberCount == 0) return false;
			// No more than 3 numbers and all together.
			if (numberCount > 3) return false;
			return true;
		}

		public static bool IsValidVin(string value)
		{
			if (StringUtil.IsBlank(value)) return false;
			if (!StringUtil.IsAlphaNumeric(value)) return false;
			if (value.Length != 17) return false;
			// At least the first character must be an upper case letter.
			if (!char.IsLetter(value[0])) return false;
			// VIN must contain at least one letter and one number.
			int letterCount = 0, numberCount = 0;
			foreach (char c in value)
			{
				if (char.IsLetter(c)) letterCount++;
				if (char.IsDigit(c)) numberCount++;
			}
			if (letterCount == 0 || numberCount == 0) return false;
			// The last 5 characters must be numeric.
			if (!StringUtil.IsNumeric(value.Right(5))) return false;
			return true;
		}

		//-------------------------------------------------------------------
		// Properties.
		public Data GetData() { return data.Clone(); }
		public void SetData(Data data)
		{
			// Properties that cannot be changed if previously specified.
			if (SysId.IsValid(Id) && SysId.ToInt(Id) != SysId.ToInt(data.Id))
				throw new NotSupportedException($"{SysUtil.Fn} Id cannot be changed");
			// Populate individual properties to ensure that 'Changed' indicator is kept up to date.
			this.data.PopulateFrom(data);
		}

		// Value ranges.
		public static Int16 MaxEngineCapacity { get { return 9999; } }
		public static Int16 MaxSeats { get { return 99; } }
		public static Int16 MaxWeight { get { return 10000; } }
		public static Int32 MaxOdo { get { return 1000000; } }
		public static Int16 MinYear { get { return 1960; } }
		public static Int16 MaxYear { get { return (Int16)(DateTime.Today.Year + 1); } }
		public static DateTime MinDate { get { return new DateTime(MinYear, 1, 1); } }
		public static DateTime MaxDate { get { return new DateTime(MaxYear, 12, 31); } }

		//-------------------------------------------------------------------
		// Attributes.			
		public String AssetSerial
		{
			get { return data.AssetSerial; }
			set { data.AssetSerial = value; }
		}
		public SysId VehicleClassId
		{
			get { return data.VehicleClassId; }
			set { data.VehicleClassId = value; }
		}
		public String RegNumber
		{
			get { return data.RegNumber; }
			set { data.RegNumber = value; }
		}
		public String Vin
		{
			get { return data.Vin; }
			set { data.Vin = value; }
		}
		public String CapCode
		{
			get { return data.CapCode; }
			set { data.CapCode = value; }
		}
		public String KeyNumber
		{
			get { return data.KeyNumber; }
			set { data.KeyNumber = value; }
		}
		public String KeyLocation
		{
			get { return data.KeyLocation; }
			set { data.KeyLocation = value; }
		}
		public String EngineNumber
		{
			get { return data.EngineNumber; }
			set { data.EngineNumber = value; }
		}
		public short EngineCapacity
		{
			get { return data.EngineCapacity; }
			set { data.EngineCapacity = value; }
		}
		public short Seats
		{
			get { return data.Seats; }
			set { data.Seats = value; }
		}
		public short Weight
		{
			get { return data.Weight; }
			set { data.Weight = value; }
		}

		public short ManufactureYear
		{
			get { return data.ManufactureYear; }
			set { data.ManufactureYear = value; }
		}
		public DateTime BuildOn
		{
			get { return data.BuildOn; }
			set { data.BuildOn = value; }
		}
		public DateTime FirstRegisterOn
		{
			get { return data.FirstRegisterOn; }
			set { data.FirstRegisterOn = value; }
		}
		public DateTime RegisterOn
		{
			get { return data.RegisterOn; }
			set { data.RegisterOn = value; }
		}
		public String RegNumberPrev
		{
			get { return data.RegNumberPrev; }
			set { data.RegNumberPrev = value; }
		}
		public Int32 PurchaseOdo
		{
			get { return data.PurchaseOdo; }
			set { data.PurchaseOdo = value; }
		}
		public String TachoCode
		{
			get { return data.TachoCode; }
			set { data.TachoCode = value; }
		}
		public String TachoId
		{
			get { return data.TachoId; }
			set { data.TachoId = value; }
		}
		public Int32 LastServiceOdo
		{
			get { return data.LastServiceOdo; }
			set { data.LastServiceOdo = value; }
		}
		public DateTime LastServiceOn
		{
			get { return data.LastServiceOn; }
			set { data.LastServiceOn = value; }
		}
		public Int32 NextServiceOdo
		{
			get { return data.NextServiceOdo; }
			set { data.NextServiceOdo = value; }
		}

		public DateTime NextServiceOn
		{
			get { return data.NextServiceOn; }
			set { data.NextServiceOn = value; }
		}
		public DateTime MotOn
		{
			get { return data.MotOn; }
			set { data.MotOn = value; }
		}
		public String MotNo
		{
			get { return data.MotNo; }
			set { data.MotNo = value; }
		}
		public DateTime NextTaxOn
		{
			get { return data.NextTaxOn; }
			set { data.NextTaxOn = value; }
		}
		public Int32 LatestOdo
		{
			get { return data.LatestOdo; }
			set { data.LatestOdo = value; }
		}
		public DateTime LatestOdoOn
		{
			get { return data.LatestOdoOn; }
			set { data.LatestOdoOn = value; }
		}
		//-------------------------------------------------------------------
		// Flags.
		public bool HpiAlert
		{
			get { return GetFlag(Flag_HpiAlert); }
			set { SetFlag(Flag_HpiAlert, value); }
		}

		//-------------------------------------------------------------------
		//                            P a r a m s
		//-------------------------------------------------------------------
		/// <summary>Parameters - used to define the filters that should be applied to a List of Vehicles</summary>
		// List parameters.
		public enum StatusCat
		{
			Any,
			ActiveOnly,
			NotDeleted,
			DeletedOnly
		}
		/// <summary>
		/// Item list parameters.
		/// </summary>
		public new class Params : SacsHierarchyItem.Params
		{
			// List filtering.
			public HashSet<SysId> IdsIncluded { get; } = new HashSet<SysId>();
			public HashSet<SysId> IdsExcluded { get; } = new HashSet<SysId>();
			// Vehicle.
			public string Search { get; set; }
			public SysId VehicleClassId { get; set; }
			public SysId AssetCatIdInclude { get; set; }
			public SysId AssetCatIdExclude { get; set; }
			public SysId AssetProcessIdNext { get; set; }
			public String RegNumber { get; set; }
			public String RegNumberPartial { get; set; }
			public String VinPartial { get; set; }
			public String MakeCode { get; set; }
			public String ClassDescPartial { get; set; }
			/// <summary>Vehicle status.</summary>
			public StatusCat StatusCat { get; set; } = StatusCat.Any;
			// Linked table aliases.
			public string TableAlias_VehicleClasss { get; set; }
		}

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

	//=======================================================================
	//                        V e h i c l e   L i s t
	//=======================================================================
	public static class SbmVehicleList
	{
		/// <summary>Check whether item exists/locate in list with specified Id.</summary>
		public static bool Find(this List<SbmVehicle> values, SbmVehicle vehicle)
		{
			if (vehicle == null) return false;
			return values.Any(item => item == vehicle);
		}
		public static bool FindById(this List<SbmVehicle> values, SysId id)
		{
			if (!SysId.IsValid(id)) return false;
			return values.Any(item => item.Id.Equals(id));
		}
	}

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