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

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

namespace CarServiceDatabase.Models
{
	public class Item : IItemModel
	{
		public int Id { get; private set; }
		[Required]
		public string Name { get; private set; } = string.Empty;
		[Required, Column(TypeName = "decimal (10,2)")]
		public decimal Price { get; private set; }
		[Required]
		public int Count { get; private set; }
		[Required]
		public int WorkerId { get; private set; }
		/// <summary>
		/// Затраты на ремонт
		/// </summary>
		[ForeignKey("ItemId")]
		public virtual List<ItemForRepair> ItemsForRepair { get; set; } = new();
		public virtual Worker Worker { get; set; } = new();
		public static Item? Create(CarServiceDbContext context, ItemBindingModel? model)
		{
			if (model == null)
			{
				return null;
			}
			return new()
			{
				Name = model.Name,
				Price = model.Price,
				Count = model.Count,
				Worker = context.Workers.First(x => x.Id == model.WorkerId)
			};
		}
		public void Update(CarServiceDbContext context, ItemBindingModel? model)
		{
			if (model == null)
			{
				return;
			}
			Name = model.Name;
			Price = model.Price;
			Count = model.Count;
			Worker = context.Workers.First(x => x.Id == model.WorkerId);
		}
		public void UpdateCount(IItemModel? model, int count)
		{
			if (model == null)
			{
				return;
			}
			Count -= model.Count;
		}
		public ItemViewModel GetViewModel => new()
		{
			Id = Id,
			Name = Name,
			Price = Price,
			Count = Count,
			WorkerId = WorkerId,
			WorkerName = Worker.Name + " " + Worker.Surname
		};
	}
}