using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Runtime.Serialization;
using BeWo.ViewModel.ListViewModel;
using BS.Shared;
using BS.Shared.DataContracts;
using BS.Shared.DataContracts.Feature.AI;
using DevExpress.Mvvm;
using Newtonsoft.Json;

namespace BeWo.ViewModel
{
	[JsonObject(MemberSerialization.OptIn)]
	public class AiConversationVM : AbstractDCMapperVM<AiConversationDC>
	{
		private string _Displayname;
		private DateTime _Updated;
		private AiConversationMessageListVM _Messages;

		public AiConversationVM() : this(new AiConversationDC()) { }
		public AiConversationVM(AiConversationDC dc) : base(dc, dc.Oid is null)
		{
			
		}

		public string Json
		{
			get => JsonConvert.SerializeObject(this, Formatting.Indented);
		}

		[JsonProperty]
		public string Displayname
		{
			get { return _Displayname; }
			set
			{
				if (!AreDifferent(_Displayname, value))
					return;

				_Displayname = value;
				StoreDirtyInformation(AreDifferent(DataContract.Displayname, value), nameof(Displayname));
				FirePropertyChanged(nameof(Displayname));
				FirePropertyChanged(nameof(Json));
			}
		}

		[JsonProperty]
		public DateTime Updated
		{
			get { return _Updated; }
			set
			{
				if (!AreDifferent(Updated, value))
					return;

				_Updated = value;
				StoreDirtyInformation(AreDifferent(DataContract.Updated, value), nameof(Updated));
				FirePropertyChanged(nameof(Updated));
			}
		}

		public AiConversationMessageListVM Messages
		{
			get { return _Messages ?? (_Messages = new AiConversationMessageListVM()); }
			set
			{
				if (!AreDifferent(_Messages, value))
					return;

				_Messages = value;
				StoreDirtyInformation(AreDifferent(DataContract.Messages, value), nameof(Messages));
				FirePropertyChanged(nameof(Messages));
			}
		}

		[JsonProperty]
		public DateTime Created => DataContract.Created;

		[JsonProperty]
		public AiModelDC Modell => DataContract.Modell;

		protected override void InitByDataContract(AiConversationDC pDataContract)
		{
			_Displayname = pDataContract.Displayname;
			_Updated = pDataContract.Updated;

			if (pDataContract.Messages is object)
				_Messages = new AiConversationMessageListVM(pDataContract.Messages);
		}

		protected override AiConversationDC MapToDataContract(AiConversationDC pDataContract, bool doCommit)
		{
			pDataContract.Displayname = _Displayname;
			pDataContract.Updated = _Updated;
			pDataContract.Messages = _Messages?.CopyToDCList(doCommit);

			return pDataContract;
		}
	}
}