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

namespace Saxonite.Net.Standard.Base.Bus
{
	//=======================================================================
	// ItemImage.
	//=======================================================================
	public abstract class SaxItemImage : SaxDisposableHierarchyItem
	{
		//-------------------------------------------------------------------
		// Columns.
		public enum Column
		{
			Pos,
			Id,
			// Item.
			ItemType,
			ItemType_Code,
			ItemType_Desc,
			ItemId,
			Item_Caption,
			// Image.
			ImageType,
			ImageType_Code,
			ImageType_Desc,
			ImageSeq,
			Filename,
			Mime,
			ContentType,
			Width,
			Height,
			DataSize,
			// Associated data.
			// Common.
			Notes,
			Flags,
			Status,
			Status_Desc,
			Status_Ind,
			CreateOn_Date,
			UpdateOn_Date,
		}

		//-------------------------------------------------------------------
		/// <summary>Properties other than common.</summary>
		public class DataProperties
		{
			public ItemId ItemId { get; set; } = new ItemId();
			public Sax.ImageType ImageType { get; set; }
			public byte ImageSeq { get; set; }
			public long SessionUid { get; set; }
			public int ImageUid { get; set; }
			public String Filename { get; set; }
			public String Mime { get; set; }
			public String ContentType { get; set; }
			public int Width { get; set; }
			public int Height { get; set; }
			public byte[] ImageData { get; set; }
		}

		//-------------------------------------------------------------------
		// Data.
		public new class Data : SacsHierarchyItem.Data
		{
			// Data members.
			private readonly DataProperties data = new DataProperties();
			// Construction.
			public Data()
			{
				Status = DefaultStatus;
			}
			// Properties.
			public ItemId ItemId
			{
				get { return data.ItemId; }
				set { CheckChanged(data.ItemId, value); data.ItemId = value; }
			}
			public Sax.ImageType ImageType
			{
				get { return data.ImageType; }
				set { CheckChanged((int)data.ImageType, (int)value); data.ImageType = value; }
			}
			public byte ImageSeq
			{
				get { return data.ImageSeq; }
				set { CheckChanged(data.ImageSeq, value); data.ImageSeq = value; }
			}
			public long SessionUid
			{
				get { return data.SessionUid; }
				set { CheckChanged(data.SessionUid, value); data.SessionUid = value; }
			}
			public int ImageUid
			{
				get { return data.ImageUid; }
				set { CheckChanged(data.ImageUid, value); data.ImageUid = value; }
			}
			public String Filename
			{
				get { return data.Filename; }
				set { CheckChanged(data.Filename, value); data.Filename = value; }
			}
			public String Mime
			{
				get { return data.Mime; }
				set { CheckChanged(data.Mime, value); data.Mime = value; }
			}
			public String ContentType
			{
				get { return data.ContentType; }
				set { CheckChanged(data.ContentType, value); data.ContentType = value; }
			}
			public int Width
			{
				get { return data.Width; }
				set { CheckChanged(data.Width, value); data.Width = value; }
			}
			public int Height
			{
				get { return data.Height; }
				set { CheckChanged(data.Height, value); data.Height = value; }
			}
			public byte[] ImageData
			{
				get { return data.ImageData; }
				set { CheckChanged(data.ImageData, value); data.ImageData = value; }
			}
			// Population.
			internal void PopulateFrom(Data data)
			{
				ItemId = data.ItemId;
				ImageType = data.ImageType;
				ImageSeq = data.ImageSeq;
				SessionUid = data.SessionUid;
				ImageUid = data.ImageUid;
				Filename = data.Filename;
				Mime = data.Mime;
				ContentType = data.ContentType;
				Width = data.Width;
				Height = data.Height;
				ImageData = data.ImageData;
				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 ItemId { get; set; } = ValidValue.Valid;
			public ValidValue ImageType { get; set; } = ValidValue.Valid;
			public ValidValue ImageSeq { get; set; } = ValidValue.Valid;
			public ValidValue SessionUid { get; set; } = ValidValue.Valid;
			public ValidValue ImageUid { get; set; } = ValidValue.Valid;
			public ValidValue Filename { get; set; } = ValidValue.Valid;
			public ValidValue Mime { get; set; } = ValidValue.Valid;
			public ValidValue ContentType { get; set; } = ValidValue.Valid;
			public ValidValue Width { get; set; } = ValidValue.Valid;
			public ValidValue Height { get; set; } = ValidValue.Valid;
			public ValidValue ImageData { get; set; } = ValidValue.Valid;
		}

		//-------------------------------------------------------------------
		// Data members.
		private readonly Data data = new Data();

		//-------------------------------------------------------------------
		// Construction.
		protected SaxItemImage(SysId id, ItemId itemId, Sax.ImageType imageType) : base(id)
		{
			base.SetData(data);
			ItemId = itemId;
			ImageType = imageType;
			Status = DefaultStatus;
		}

		//-------------------------------------------------------------------
		// Status.
		private static readonly List<SaStatus> validStatuses = new List<SaStatus>()
		{
			SaStatus.Active,
			SaStatus.Inactive,
			SaStatus.Deleted,
		};
		public static SaStatus DefaultStatus { get { return SaStatus.Active; } }
		public static List<SaStatus> ValidStatuses { get { return new List<SaStatus>(validStatuses); } }
		public static DataValue.TriStateType GetStatusTriState(SaStatus status)
		{
			if (status == SaStatus.Active) return DataValue.TriStateType.Green;
			if (status == SaStatus.Inactive) return DataValue.TriStateType.Red;
			if (status == SaStatus.Deleted) return DataValue.TriStateType.Purple;
			return DataValue.TriStateType.Unknown;
		}

		//-------------------------------------------------------------------
		// Utilities.
		public ItemId GetItemId()
		{
			return new ItemId((short)Sax.DataItemType.ItemImage, Id);
		}

		// Validation.
		public static List<Sax.DataItemType> ValidItemTypes
		{
			get
			{
				return new List<Sax.DataItemType> { Sax.DataItemType.UserAccount, Sax.DataItemType.Organisation, Sax.DataItemType.Article };
			}
		}
		public static List<Sacs.MimeType> GetValidMimeTypes(Sax.DataItemType itemType)
		{
			switch (itemType)
			{
				case Sax.DataItemType.UserAccount:
				case Sax.DataItemType.Organisation:
				case Sax.DataItemType.Article:
					return new List<Sacs.MimeType> { Sacs.MimeType.Jpeg, Sacs.MimeType.Webp, Sacs.MimeType.Png, Sacs.MimeType.Svg };
			}
			return new List<Sacs.MimeType>();
		}
		public static List<String> GetValidContentTypes(Sax.DataItemType itemType)
		{
			switch (itemType)
			{
				case Sax.DataItemType.UserAccount:
				case Sax.DataItemType.Organisation:
				case Sax.DataItemType.Article:
					return new List<string> { "image/jpg", "image/jpeg", "image/webp", "image/png", "image/svg+xml" };
			}
			return new List<string>();
		}

		//-------------------------------------------------------------------
		// 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($"{SysUtil.Fn} Id cannot be changed");
			if (ItemId.IsValid(ItemId) && ItemId.Type != data.ItemId.Type && SysId.ToInt(ItemId.Id) != SysId.ToInt(data.ItemId.Id))
				throw new NotSupportedException($"{SysUtil.Fn} Item Id cannot be changed");
			if (ImageType > 0 && ImageType != data.ImageType)
				throw new NotSupportedException($"{SysUtil.Fn} Image Type cannot be changed");
			this.data.PopulateFrom(data);
		}
		public ItemId ItemId
		{
			get { return data.ItemId; }
			set { data.ItemId = value; }
		}
		public Sax.ImageType ImageType
		{
			get { return data.ImageType; }
			set { data.ImageType = value; }
		}
		public byte ImageSeq
		{
			get { return data.ImageSeq; }
			set { data.ImageSeq = value; }
		}
		public long SessionUid
		{
			get { return data.SessionUid; }
			set { data.SessionUid = value; }
		}
		public int ImageUid
		{
			get { return data.ImageUid; }
			set { data.ImageUid = value; }
		}
		public String Filename
		{
			get { return data.Filename; }
			set { data.Filename = value; }
		}
		public String Mime
		{
			get { return data.Mime; }
			set { data.Mime = value; }
		}
		public String ContentType
		{
			get { return data.ContentType; }
			set { data.ContentType = value; }
		}
		public int Width
		{
			get { return data.Width; }
			set { data.Width = value; }
		}
		public int Height
		{
			get { return data.Height; }
			set { data.Height = value; }
		}
		public byte[] ImageData
		{
			get { return data.ImageData; }
			set { data.ImageData = value; }
		}

		//-------------------------------------------------------------------
		// Flags - positions 1-16 available.

		//-------------------------------------------------------------------
		//                   A s s o c i a t e d   D a t a
		//-------------------------------------------------------------------

		//-------------------------------------------------------------------
		//                            P a r a m s
		//-------------------------------------------------------------------
		// List parameters.
		public enum StatusCat
		{
			Any,
			ActiveOnly,
			InactiveOnly,
			NotDeleted,
			DeletedOnly,
		}
		/// <summary>
		/// Item list parameters.
		/// </summary>
		public new class Params : SacsHierarchyItem.Params
		{
			// List filtering.
			public List<SysId> IdsIncluded { get; } = new List<SysId>();
			public List<SysId> IdsExcluded { get; } = new List<SysId>();
			public List<ItemId> ItemIdsIncluded { get; } = new List<ItemId>();
			public List<Sax.ImageType> ImageTypesIncluded { get; } = new List<Sax.ImageType>();
			// Common properties.
			public String NotesPartial { get; set; }
			public StatusCat StatusCat { get; set; } = StatusCat.NotDeleted;
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
	// Item list extension methods.
	public static class SaxItemImageList
	{
		//-------------------------------------------------------------------
		public static SaxItemImage GetItemImageById(this List<SaxItemImage> values, SysId itemImageId)
		{
			if (!SysId.IsValid(itemImageId)) return null;
			return values.Find(item => item.Id.Equals(itemImageId));
		}

		public static SaxItemImage GetItemImageBySessionImage(this List<SaxItemImage> values, long sessionUid, int imageUid)
		{
			if (sessionUid < 1 || imageUid < 1) return null;
			return values.Find(item => item.SessionUid == sessionUid && item.ImageUid == imageUid);
		}

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

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