ISEbd-21_Melnikov_I.O._CarService/CarService/CarServiceDatabase/Models/ItemForRepair.cs

using CarServiceContracts.BindingModels;
using CarServiceContracts.Models;
using CarServiceContracts.ViewModels;
using System.ComponentModel.DataAnnotations;

namespace CarServiceDatabase.Models
{
	public class ItemForRepair : IItemForRepairModel
	{
		public int Id { get; private set; }
		[Required]
		public int Count { get; private set; }
		[Required]
		public int ItemId { get; private set; }
		[Required]
		public int RepairRequestId { get; private set; }
		public virtual Item Item { get; set; } = new();
		public virtual RepairRequest RepairRequest { get; set; } = new();
		public static ItemForRepair? Create(CarServiceDbContext context, ItemForRepairBindingModel? model)
		{
			if (model == null)
			{
				return null;
			}
			var currItem = context.Items.First(x => x.Id == model.ItemId);
			if (currItem.Count < model.Count)
			{
				throw new ArgumentException("На складе нет столько запчастей");
			}
			return new()
			{
				Count = model.Count,
				Item = context.Items.First(x => x.Id == model.ItemId),
				RepairRequest = context.RepairRequests.First(x => x.Id == model.RepairRequestId)
			};
		}
		public void Update(CarServiceDbContext context, ItemForRepairBindingModel? model)
		{
			if (model == null)
			{
				return;
			}
			Count = model.Count;
			Item = context.Items.First(x => x.Id == model.ItemId);
			RepairRequest = context.RepairRequests.First(x => x.Id == model.RepairRequestId);
		}
		public ItemForRepairViewModel GetViewModel => new()
		{
			Id = Id,
			Count = Count,
			ItemId = ItemId,
			RepairRequestId = RepairRequestId,
			ItemName = Item.Name
		};
	}
}