PIbd-21_RazubaevSM_PlumbingRepair_Base/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/MessageInfoStorage.cs

using PlumbingRepairContracts.BindingModels;
using PlumbingRepairContracts.SearchModels;
using PlumbingRepairContracts.StoragesContracts;
using PlumbingRepairContracts.ViewModels;
using PlumbingRepairDatabaseImplement.Models;

namespace PlumbingRepairDatabaseImplement.Implements
{
    public class MessageInfoStorage : IMessageInfoStorage
    {
        public List<MessageInfoViewModel> GetFullList()
        {
            using var context = new PlumbingRepairDatabase();
            return context.Messages
                    .Select(x => x.GetViewModel)
                    .ToList();
        }

        public List<MessageInfoViewModel> GetFilteredList(MessageInfoSearchModel model)
        {
            using var context = new PlumbingRepairDatabase();
			if (model.ClientId.HasValue && model.Page.HasValue && model.PageSize.HasValue)
			{
				return context.Messages
					.Where(x => x.ClientId == model.ClientId)
					.Skip(model.PageSize.Value * model.Page.Value)
					.Take(model.PageSize.Value)
					.Select(x => x.GetViewModel)
					.ToList();
			}
			else if (model.Page.HasValue && model.PageSize.HasValue)
			{
				return context.Messages
					.Skip(model.PageSize.Value * model.Page.Value)
					.Take(model.PageSize.Value)
					.Select(x => x.GetViewModel)
					.ToList();
			}
			return new();
		}

        public MessageInfoViewModel? GetElement(MessageInfoSearchModel model)
        {
          
            if (string.IsNullOrEmpty(model.MessageId))
                return null;
              using var context = new PlumbingRepairDatabase();
                return context.Messages
                    .FirstOrDefault(x => x.MessageId == model.MessageId)?.GetViewModel;
        }

        public MessageInfoViewModel? Insert(MessageInfoBindingModel model)
        {
			using var context = new PlumbingRepairDatabase();
			model.ClientId = context.Clients.FirstOrDefault(x => x.Email.Equals(model.SenderName))?.Id;
			var newMessageInfo = MessageInfo.Create(model);

			if (newMessageInfo == null || context.Messages.Any(x => x.MessageId.Equals(model.MessageId)))
			{
				return null;
			}


			context.Messages.Add(newMessageInfo);
            context.SaveChanges();
            return newMessageInfo.GetViewModel;
        }

		public MessageInfoViewModel? Update(MessageInfoBindingModel model)
		{
			using var context = new PlumbingRepairDatabase();
			var message = context.Messages.FirstOrDefault(x => x.MessageId == model.MessageId);
			if (message == null)
			{
				return null;
			}
			message.Update(model);
			context.SaveChanges();
			return message.GetViewModel;
		}
	}
}