PIbd-23-Radaev-A.V.-GiftShop/GiftShop/GiftShopListImplement/Implements/MessageInfoStorage.cs

using GiftShopContracts.BindingModels;
using GiftShopContracts.SearchModels;
using GiftShopContracts.StoragesContracts;
using GiftShopContracts.ViewModels;
using GiftShopListImplement.Models;

namespace GiftShopListImplement.Implements
{
	public class MessageInfoStorage : IMessageInfoStorage
	{
		private readonly DataListSingleton _source;
		public MessageInfoStorage()
		{
			_source = DataListSingleton.GetInstance();
		}
		public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
		{
			foreach (var message in _source.Messages)
			{
				if (model.MessageId != null && model.MessageId.Equals(message.MessageId))
					return message.GetViewModel;
			}
			return null;
		}

		public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
		{
			var result = new List<MessageInfoViewModel>();
			foreach (var message in _source.Messages)
			{
				if (message.ClientId.HasValue && message.ClientId == model.ClientId)
				{
					result.Add(message.GetViewModel);
				}
			}
			return result;
		}

		public List<MessageInfoViewModel> GetFullList()
		{
			var result = new List<MessageInfoViewModel>();
			foreach (var message in _source.Messages)
			{
				result.Add(message.GetViewModel);
			}
			return result;
		}

		public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
		{
			var newMessage = Message.Create(model);
			if (newMessage == null)
			{
				return null;
			}
			_source.Messages.Add(newMessage);
			return newMessage.GetViewModel;
		}
	}
}