Добавил перечисление, сущьности. Осталось репозитории, формы и тп.

ProjectRepairCompany/ProjectRepairCompany/Entities/Detail.cs

@@ -0,0 +1,29 @@
+using ProjectRepairCompany.Entities.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectRepairCompany.Entities;
+
+public class Detail
+{
+    public int Id { get; private set; }
+    public string NameDetail { get; private set; } = string.Empty;
+    public int NumberDetail { get; private set; }
+    public int PriceDetail { get; private set; }
+    public DetailProperties DetailProperties { get; private set; }
+
+    public static Detail CreateEntity(int id, string nameDetail, int numberDetail, int priceDetail, DetailProperties detailProperties) 
+    {
+        return new Detail
+        {
+            Id = id,
+            NameDetail = nameDetail,
+            NumberDetail = numberDetail,
+            PriceDetail = priceDetail,
+            DetailProperties = detailProperties
+        };
+    } 
+}

ProjectRepairCompany/ProjectRepairCompany/Entities/Enums/DetailProperties.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectRepairCompany.Entities.Enums;
+
+[Flags]
+public enum DetailProperties
+{
+    None = 0,           // Нет свойств
+    Fragile = 1,        // Хрупкая деталь
+    Heavy = 2,          // Тяжелая
+    Expensive = 4,      // Дорогая
+    CustomMade = 8,     // Изготовлена на заказ
+    InStock = 16,       // В наличии
+    Discounted = 32     // Со скидкой
+}

ProjectRepairCompany/ProjectRepairCompany/Entities/Enums/MasterPost.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectRepairCompany.Entities.Enums;
+
+public enum MasterPost
+{
+    None = 0,
+    Intern = 1,
+    Worker = 2,
+    Head = 3
+
+}

ProjectRepairCompany/ProjectRepairCompany/Entities/Master.cs

@@ -0,0 +1,27 @@
+using ProjectRepairCompany.Entities.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectRepairCompany.Entities;
+
+public class Master
+{
+    public int Id { get; private set; }
+    public string MasterName { get; private set; } = string.Empty;
+    public DateTime StartDate { get; private set; }
+    public MasterPost MasterPost { get; private set; }
+
+    public static Master CreateEntity(int id, string masterName, MasterPost masterPost)
+    {
+        return new Master
+        {
+            Id = id,
+            MasterName = masterName,
+            StartDate = DateTime.Now,
+            MasterPost = masterPost
+        };
+    }
+}

ProjectRepairCompany/ProjectRepairCompany/Entities/Order.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectRepairCompany.Entities;
+
+public class Order
+{
+    public int Id { get; private set; }
+    public DateTime OrderDate { get; private set; }
+    public DateTime? DateCompletion { get; private set; } // уточнить
+    public DateTime? DateIssue { get; private set; } // уточнить
+    public int FullPrice { get; private set; }
+    public int MasterId { get; private set; }
+
+    public static Order CreateOperation(int id, int fullPrice, int masterId, DateTime? dateCompletion = null, DateTime? dateIssue = null)
+    {
+        if (dateCompletion.HasValue && dateCompletion < DateTime.Now)
+            throw new ArgumentException("Дата начала ремонта не может быть раньше текущей даты.");
+
+        if (dateIssue.HasValue && dateCompletion.HasValue && dateIssue < dateCompletion)
+            throw new ArgumentException("Дата выдачи не может быть раньше даты начала ремонта.");
+
+        return new Order
+        {
+            Id = id,
+            OrderDate = DateTime.Now, // Автоматически задается текущая дата
+            DateCompletion = dateCompletion, // Задается вручную, если есть
+            DateIssue = dateIssue, // Задается вручную, если есть
+            FullPrice = fullPrice,
+            MasterId = masterId
+        };
+    }
+}

ProjectRepairCompany/ProjectRepairCompany/Entities/OrderDetail.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectRepairCompany.Entities;
+
+public class OrderDetail
+{
+    public int OrderId { get; private set; }
+    public int DetailId { get; private set; }
+    public int DetailPrice { get; private set; } 
+    public int DetailCount { get; private set; } 
+
+    public static OrderDetail CreateOperation(int orderId, int detailId, int detailPrice, int detailCount)
+    {
+        return new OrderDetail
+        {
+            OrderId = orderId,
+            DetailId = detailId,
+            DetailPrice = detailPrice,
+            DetailCount = detailCount
+        };
+    }
+}

ProjectRepairCompany/ProjectRepairCompany/Entities/Storage.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectRepairCompany.Entities;
+
+public class Storage
+{
+    public int Id { get; private set; }
+    public string StorageAddress { get; private set; } = string.Empty;
+    public int Capacity { get; private set; }
+
+    public static Storage CreateEntity(int id, string storageAddress, int capacity)
+    {
+        return new Storage
+        {
+            Id = id,
+            StorageAddress = storageAddress,
+            Capacity = capacity
+        };
+    }
+}

ProjectRepairCompany/ProjectRepairCompany/Entities/StorageDetail.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ProjectRepairCompany.Entities;
+
+public class StorageDetail
+{
+    public int StorageId { get; private set; }
+    public int DetailId { get; private set; }
+    public int DetailCount { get; private set; } 
+    public DateTime SupplyDate { get; private set; } // Дата поступления деталей
+
+    public static StorageDetail CreateOperation(int storageId, int detailId, int detailCount, DateTime supplyDate)
+    {
+        return new StorageDetail
+        {
+            StorageId = storageId,
+            DetailId = detailId,
+            DetailCount = detailCount,
+            SupplyDate = supplyDate
+        };
+    }
+}