IceCreamShop/IceCreamShopBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -4,6 +4,7 @@ using IceCreamShopContracts.SearchModels;
 using IceCreamShopContracts.StoragesContracts;
 using IceCreamShopContracts.ViewModels;
 using IceCreamShopDataModels.Enums;
+using IceCreamShopDataModels.Models;
 using Microsoft.Extensions.Logging;
 
 namespace IceCreamShopBusinessLogic.BusinessLogics
@@ -14,10 +15,20 @@ namespace IceCreamShopBusinessLogic.BusinessLogics
 
         private readonly IOrderStorage _orderStorage;
 
-        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        private readonly IIceCreamStorage _iceCreamStorage;
+
+        private readonly IShopStorage _shopStorage;
+
+        private readonly IShopLogic _shopLogic;
+
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage, IIceCreamStorage iceCreamStorage, 
+            IShopStorage shopStorage, IShopLogic shopLogic)
         {
             _logger = logger;
             _orderStorage = orderStorage;
+            _iceCreamStorage = iceCreamStorage;
+            _shopStorage = shopStorage;
+            _shopLogic = shopLogic;
         }
 
         public bool CreateOrder(OrderBindingModel model)
@@ -106,15 +117,26 @@ namespace IceCreamShopBusinessLogic.BusinessLogics
                     newStatus, order.Status);
                 return false;
             }
-            model.IceCreamId = order.IceCreamId;
-            model.Count = order.Count;
-            model.Sum = order.Sum;
-            model.DateCreate = order.DateCreate;
+            if (newStatus == OrderStatus.Выдан)
+            {
+                var iceCream = _iceCreamStorage.GetElement(new IceCreamSearchModel() { Id = order.IceCreamId });
+                if (iceCream == null)
+                {
+                    _logger.LogWarning("Change status operation failed. Ice cream not found");
+                    return false;
+                }
+                if (!DeliverIceCreams(iceCream, order.Count))
+                {
+                    _logger.LogWarning("Change status operation failed. Ice creams delivery operation failed");
+                    return false;
+                }
+            }
             model.Status = newStatus;
             if (model.Status == OrderStatus.Готов)
             {
                 model.DateImplement = DateTime.Now;
-            } else
+            }
+            else
             {
                 model.DateImplement = order.DateImplement;
             }
@@ -125,5 +147,65 @@ namespace IceCreamShopBusinessLogic.BusinessLogics
             }
             return true;
         }
+
+        private bool DeliverIceCreams(IIceCreamModel iceCream, int count)
+        {
+            if (count <= 0)
+            {
+                _logger.LogWarning("Ice creams delivery operation failed. Ice cream count <= 0");
+                return false;
+            }
+
+            var shopList = _shopStorage.GetFullList();
+            int shopsCapacity = shopList.Sum(x => x.IceCreamsMaximum);
+            int currentIceCreams = shopList.Select(x => x.ShopIceCreams.Select(y => y.Value.Item2).Sum()).Sum();
+            int freePlaces = shopsCapacity - currentIceCreams;
+
+            if (freePlaces < count)
+            {
+                _logger.LogWarning("Ice creams delivery operation failed. No space for new ice creams");
+                return false;
+            }
+
+            foreach (var shop in shopList)
+            {
+                freePlaces = shop.IceCreamsMaximum - shop.ShopIceCreams.Sum(x => x.Value.Item2);
+                if (freePlaces == 0)
+                {
+                    continue;
+                }
+                if (freePlaces >= count)
+                {
+                    if (_shopLogic.MakeShipment(new() { Id = shop.Id }, iceCream, count))
+                    {
+                        count = 0;
+                    }
+                    else
+                    {
+                        _logger.LogWarning("Ice creams delivery operation failed");
+                        return false;
+                    }
+                }
+                else
+                {
+                    if (_shopLogic.MakeShipment(new() { Id = shop.Id }, iceCream, freePlaces))
+                    {
+                        count -= freePlaces;
+                    }
+                    else
+                    {
+                        _logger.LogWarning("Ice creams delivery operation failed");
+                        return false;
+                    }
+                }
+                if (count == 0)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
     }
+
+
 }

IceCreamShop/IceCreamShopBusinessLogic/BusinessLogics/ShopLogic.cs

@@ -105,6 +105,11 @@ namespace IceCreamShopBusinessLogic.BusinessLogics
                 _logger.LogWarning("MakeShipment(GetElement). Element not found");
                 return false;
             }
+            if (shop.IceCreamsMaximum - shop.ShopIceCreams.Sum(x => x.Value.Item2) < count)
+            {
+                _logger.LogWarning("MakeShipment error. No space for new ice creams");
+                return false;
+            }
             if (shop.ShopIceCreams.ContainsKey(iceCream.Id))
             {
                 var shopIC = shop.ShopIceCreams[iceCream.Id];
@@ -125,6 +130,7 @@ namespace IceCreamShopBusinessLogic.BusinessLogics
                 ShopName = shop.ShopName,
                 Address = shop.Address,
                 DateOpening = shop.DateOpening,
+                IceCreamsMaximum = shop.IceCreamsMaximum,
                 ShopIceCreams = shop.ShopIceCreams,
             }) == null)
             {
@@ -134,6 +140,11 @@ namespace IceCreamShopBusinessLogic.BusinessLogics
             return true;
         }
 
+        public bool MakeSale(IIceCreamModel model, int count)
+        {
+            return _shopStorage.MakeSale(model, count);
+        }
+
         private void CheckModel(ShopBindingModel model, bool withParams = true)
         {
             if (model == null)

IceCreamShop/IceCreamShopContracts/BindingModels/ShopBindingModel.cs

@@ -17,5 +17,7 @@ namespace IceCreamShopContracts.BindingModels
             get;
             set;
         } = new();
+
+        public int IceCreamsMaximum { get; set; }
     }
 }

IceCreamShop/IceCreamShopContracts/BusinessLogicsContracts/IShopLogic.cs

@@ -18,5 +18,7 @@ namespace IceCreamShopContracts.BusinessLogicsContracts
         bool Delete(ShopBindingModel model);
 
         bool MakeShipment(ShopSearchModel shopModel, IIceCreamModel iceCream, int count);
+
+        bool MakeSale(IIceCreamModel model, int count);
     }
 }

IceCreamShop/IceCreamShopContracts/StoragesContracts/IShopStorage.cs

@@ -1,6 +1,7 @@
 using IceCreamShopContracts.BindingModels;
 using IceCreamShopContracts.SearchModels;
 using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
 
 namespace IceCreamShopContracts.StoragesContracts
 {
@@ -17,5 +18,7 @@ namespace IceCreamShopContracts.StoragesContracts
         ShopViewModel? Update(ShopBindingModel model);
 
         ShopViewModel? Delete(ShopBindingModel model);
+
+        bool MakeSale(IIceCreamModel model, int count);
     }
 }

IceCreamShop/IceCreamShopContracts/ViewModels/ShopViewModel.cs

@@ -21,5 +21,8 @@ namespace IceCreamShopContracts.ViewModels
             get;
             set;
         } = new();
+
+        [DisplayName("Максимальное количество мороженого")]
+        public int IceCreamsMaximum { get; set; }
     }
 }

IceCreamShop/IceCreamShopDataModels/Models/IShopModel.cs

@@ -9,5 +9,7 @@
         DateTime DateOpening { get; }
 
         Dictionary<int, (IIceCreamModel, int)> ShopIceCreams { get; }
+
+        int IceCreamsMaximum { get; }
     }
 }

IceCreamShop/IceCreamShopFileImplement/DataFileSingleton.cs

@@ -13,12 +13,16 @@ namespace IceCreamShopFileImplement
 
         private readonly string IceCreamFileName = "IceCream.xml";
 
+        private readonly string ShopFileName = "Shop.xml";
+
         public List<Component> Components { get; private set; }
 
         public List<Order> Orders { get; private set; }
 
         public List<IceCream> IceCreams { get; private set; }
 
+        public List<Shop> Shops { get; private set; }
+
         public static DataFileSingleton GetInstance()
         {
             if (instance == null)
@@ -34,11 +38,14 @@ namespace IceCreamShopFileImplement
 
         public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
 
+        public void SaveShops() => SaveData(Shops, ShopFileName, "Shops", x => x.GetXElement);
+
         private DataFileSingleton()
         {
             Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
             IceCreams = LoadData(IceCreamFileName, "IceCream", x => IceCream.Create(x)!)!;
             Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+            Shops = LoadData(ShopFileName, "Shop", x => Shop.Create(x)!)!;
         }
 
         private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)

IceCreamShop/IceCreamShopFileImplement/Implements/ShopStorage.cs

@@ -0,0 +1,134 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.StoragesContracts;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using IceCreamShopFileImplement.Models;
+using System.Collections.Generic;
+
+namespace IceCreamShopFileImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public ShopStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<ShopViewModel> GetFullList()
+        {
+            return source.Shops
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+            return source.Shops
+                    .Where(x => x.ShopName.Contains(model.ShopName))
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Shops
+                    .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName) ||
+                                        (model.Id.HasValue && x.Id == model.Id))
+                    ?.GetViewModel;
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            model.Id = source.Shops.Count > 0 ? source.Shops.Max(x => x.Id) + 1 : 1;
+            var newShop = Shop.Create(model);
+            if (newShop == null)
+            {
+                return null;
+            }
+            source.Shops.Add(newShop);
+            source.SaveShops();
+            return newShop.GetViewModel;
+        }
+
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            var shop = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (shop == null)
+            {
+                return null;
+            }
+            shop.Update(model);
+            source.SaveShops();
+            return shop.GetViewModel;
+        }
+
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            var element = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Shops.Remove(element);
+                source.SaveShops();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public bool MakeSale(IIceCreamModel model, int count)
+        {
+            var iceCream = source.IceCreams.FirstOrDefault(x => x.Id == model.Id);
+            int countInShops = source.Shops.Select(x => x.ShopIceCreams.Any(y => y.Key == model.Id) 
+            ? x.ShopIceCreams.Where(y => y.Key == model.Id).First().Value.Item2 : 0).Sum();
+            
+            if (iceCream == null || countInShops < count)
+            {
+                return false;
+            }
+
+            foreach (var shop in source.Shops)
+            {
+                var shopIceCreams = shop.ShopIceCreams.Where(x => x.Key == model.Id);
+                if (shopIceCreams.Any())
+                {
+                    var shopIceCream = shopIceCreams.First();
+                    int min = Math.Min(shopIceCream.Value.Item2, count);
+                    if (min == shopIceCream.Value.Item2) 
+                    {
+                        shop.ShopIceCreams.Remove(shopIceCream.Key);
+                    } 
+                    else
+                    {
+                        shop.ShopIceCreams[shopIceCream.Key] = (shopIceCream.Value.Item1, shopIceCream.Value.Item2 - min);
+                    }
+                    shop.Update(new ShopBindingModel
+                    {
+                        Id = model.Id,
+                        ShopName = shop.ShopName,
+                        Address = shop.Address,
+                        DateOpening = shop.DateOpening,
+                        ShopIceCreams = shop.ShopIceCreams,
+                        IceCreamsMaximum = shop.IceCreamsMaximum
+                    });
+                    count -= min;
+                    if (count <= 0)
+                    {
+                        break;
+                    }
+                }
+            }
+            source.SaveShops();
+            return true;
+        }
+    }
+}

IceCreamShop/IceCreamShopFileImplement/Models/Shop.cs

@@ -0,0 +1,108 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using System.Xml.Linq;
+
+namespace IceCreamShopFileImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; private set; }
+
+        public string ShopName { get; private set; } = string.Empty;
+
+        public string Address { get; private set; } = string.Empty;
+
+        public DateTime DateOpening { get; private set; }
+
+        public Dictionary<int, int> IceCreams { get; private set; } = new();
+
+        private Dictionary<int, (IIceCreamModel, int)>? _shopIceCreams = null;
+
+        public Dictionary<int, (IIceCreamModel, int)> ShopIceCreams
+        {
+            get
+            {
+                if (_shopIceCreams == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _shopIceCreams = IceCreams.ToDictionary(x => x.Key,
+                        y => ((source.IceCreams.FirstOrDefault(z => z.Id == y.Key) as IIceCreamModel)!, y.Value));
+                }
+                return _shopIceCreams;
+            }
+        }
+
+        public int IceCreamsMaximum { get; private set; }
+
+        public static Shop? Create(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Address = model.Address,
+                DateOpening = model.DateOpening,
+                IceCreams = model.ShopIceCreams.ToDictionary(x => x.Key, x => x.Value.Item2),
+                IceCreamsMaximum = model.IceCreamsMaximum
+            };
+        }
+
+        public static Shop? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ShopName = element.Element("ShopName")!.Value,
+                Address = element.Element("Address")!.Value,
+                DateOpening = Convert.ToDateTime(element.Element("DateOpening")!.Value),
+                IceCreamsMaximum = Convert.ToInt32(element.Element("IceCreamsMaximum")!.Value),
+                IceCreams = element.Element("ShopIceCreams")!.Elements("ShopIceCream")
+                                .ToDictionary(x => Convert.ToInt32(x.Element("Key")?.Value), x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+
+        public void Update(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            Address = model.Address;
+            DateOpening = model.DateOpening;
+            IceCreamsMaximum =  model.IceCreamsMaximum;
+            IceCreams = model.ShopIceCreams.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _shopIceCreams = null;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpening = DateOpening,
+            ShopIceCreams = ShopIceCreams,
+            IceCreamsMaximum = IceCreamsMaximum
+        };
+
+        public XElement GetXElement => new("Shop",
+                        new XAttribute("Id", Id),
+                        new XElement("ShopName", ShopName),
+                        new XElement("Address", Address),
+                        new XElement("DateOpening", DateOpening.ToString()),
+                        new XElement("IceCreamsMaximum", IceCreamsMaximum.ToString()),
+                        new XElement("ShopIceCreams",
+                            IceCreams.Select(x => new XElement("ShopIceCream",
+                                                                new XElement("Key", x.Key),
+                                                                new XElement("Value", x.Value))).ToArray()));
+    }
+}

IceCreamShop/IceCreamShopListImplement/Implements/ShopStorage.cs

@@ -2,6 +2,7 @@
 using IceCreamShopContracts.SearchModels;
 using IceCreamShopContracts.StoragesContracts;
 using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
 using IceCreamShopListImplement.Models;
 
 namespace IceCreamShopListImplement.Implements
@@ -104,6 +105,11 @@ namespace IceCreamShopListImplement.Implements
                 }
             }
             return null;
-        } 
+        }
+
+        public bool MakeSale(IIceCreamModel model, int count)
+        {
+            throw new NotImplementedException();
+        }
     }
 }

IceCreamShop/IceCreamShopListImplement/Models/Shop.cs

@@ -20,6 +20,8 @@ namespace IceCreamShopListImplement.Models
             private set;
         } = new Dictionary<int, (IIceCreamModel, int)>();
 
+        public int IceCreamsMaximum { get; private set; }
+
         public static Shop? Create(ShopBindingModel? model)
         {
             if (model == null)
@@ -32,7 +34,8 @@ namespace IceCreamShopListImplement.Models
                 ShopName = model.ShopName,
                 Address = model.Address,
                 DateOpening = model.DateOpening,
-                ShopIceCreams = model.ShopIceCreams
+                ShopIceCreams = model.ShopIceCreams, 
+                IceCreamsMaximum = model.IceCreamsMaximum
             };
         }
 
@@ -46,6 +49,7 @@ namespace IceCreamShopListImplement.Models
             Address = model.Address;
             DateOpening = model.DateOpening;
             ShopIceCreams = model.ShopIceCreams;
+            IceCreamsMaximum -= model.IceCreamsMaximum;
         }
 
         public ShopViewModel GetViewModel => new()
@@ -54,7 +58,8 @@ namespace IceCreamShopListImplement.Models
             ShopName = ShopName,
             Address = Address,
             DateOpening = DateOpening,
-            ShopIceCreams = ShopIceCreams
+            ShopIceCreams = ShopIceCreams,
+            IceCreamsMaximum = IceCreamsMaximum
         };
     }
 }

IceCreamShop/IceCreamShopView/FormIceCreamSale.Designer.cs

@@ -0,0 +1,127 @@
+namespace IceCreamShopView
+{
+    partial class FormIceCreamSale
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            buttonCancel = new Button();
+            buttonSale = new Button();
+            textBoxCount = new TextBox();
+            labelCount = new Label();
+            comboBoxIceCream = new ComboBox();
+            labelIceCream = new Label();
+            SuspendLayout();
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(253, 83);
+            buttonCancel.Margin = new Padding(4, 3, 4, 3);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(88, 27);
+            buttonCancel.TabIndex = 17;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSale
+            // 
+            buttonSale.Location = new Point(159, 83);
+            buttonSale.Margin = new Padding(4, 3, 4, 3);
+            buttonSale.Name = "buttonSale";
+            buttonSale.Size = new Size(88, 27);
+            buttonSale.TabIndex = 16;
+            buttonSale.Text = "Продать";
+            buttonSale.UseVisualStyleBackColor = true;
+            buttonSale.Click += ButtonSale_Click;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(101, 51);
+            textBoxCount.Margin = new Padding(4, 3, 4, 3);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(252, 23);
+            textBoxCount.TabIndex = 15;
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(13, 54);
+            labelCount.Margin = new Padding(4, 0, 4, 0);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(78, 15);
+            labelCount.TabIndex = 14;
+            labelCount.Text = "Количество :";
+            // 
+            // comboBoxIceCream
+            // 
+            comboBoxIceCream.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxIceCream.FormattingEnabled = true;
+            comboBoxIceCream.Location = new Point(101, 15);
+            comboBoxIceCream.Margin = new Padding(4, 3, 4, 3);
+            comboBoxIceCream.Name = "comboBoxIceCream";
+            comboBoxIceCream.Size = new Size(252, 23);
+            comboBoxIceCream.TabIndex = 13;
+            // 
+            // labelIceCream
+            // 
+            labelIceCream.AutoSize = true;
+            labelIceCream.Location = new Point(13, 19);
+            labelIceCream.Margin = new Padding(4, 0, 4, 0);
+            labelIceCream.Name = "labelIceCream";
+            labelIceCream.Size = new Size(80, 15);
+            labelIceCream.TabIndex = 12;
+            labelIceCream.Text = "Мороженое :";
+            // 
+            // FormIceCreamSale
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(373, 123);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSale);
+            Controls.Add(textBoxCount);
+            Controls.Add(labelCount);
+            Controls.Add(comboBoxIceCream);
+            Controls.Add(labelIceCream);
+            Name = "FormIceCreamSale";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Продажа мороженого";
+            Load += FormIceCreamSale_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Button buttonCancel;
+        private Button buttonSale;
+        private TextBox textBoxCount;
+        private Label labelCount;
+        private ComboBox comboBoxIceCream;
+        private Label labelIceCream;
+    }
+}

IceCreamShop/IceCreamShopView/FormIceCreamSale.cs

@@ -0,0 +1,87 @@
+using IceCreamShopContracts.BusinessLogicsContracts;
+using IceCreamShopContracts.BindingModels;
+using Microsoft.Extensions.Logging;
+
+namespace IceCreamShopView
+{
+    public partial class FormIceCreamSale : Form
+    {
+        private readonly ILogger _logger;
+
+        private readonly IIceCreamLogic _logicIceCream;
+
+        private readonly IShopLogic _logicShop;
+
+        public FormIceCreamSale(ILogger<FormMakeShipment> logger, IIceCreamLogic logicIceCream, IShopLogic logicShop)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicIceCream = logicIceCream;
+            _logicShop = logicShop;
+        }
+
+        private void FormIceCreamSale_Load(object sender, EventArgs e)
+        {
+            _logger.LogInformation("Ice creams loading");
+            try
+            {
+                var list = _logicIceCream.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxIceCream.DisplayMember = "IceCreamName";
+                    comboBoxIceCream.ValueMember = "Id";
+                    comboBoxIceCream.DataSource = list;
+                    comboBoxIceCream.SelectedItem = null;
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ice creams loading error");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonSale_Click(object sender, EventArgs e)
+        {
+            if (comboBoxIceCream.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите мороженое", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                MessageBox.Show("Заполните поле Количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Ice cream sale");
+            try
+            {
+                var operationResult = _logicShop.MakeSale(
+                    new IceCreamBindingModel
+                    {
+                        Id = Convert.ToInt32(comboBoxIceCream.SelectedValue)
+                    },
+                    Convert.ToInt32(textBoxCount.Text)
+                );
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при продаже.");
+                }
+                MessageBox.Show("Продажа прошла успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ice cream sale error");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

IceCreamShop/IceCreamShopView/FormIceCreamSale.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

IceCreamShop/IceCreamShopView/FormMain.cs

@@ -78,6 +78,15 @@ namespace IceCreamShopView
             }
         }
 
+        private void продажаМороженогоToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormIceCreamSale));
+            if (service is FormIceCreamSale form)
+            {
+                form.ShowDialog();
+            }
+        }
+
         private void ButtonCreateOrder_Click(object sender, EventArgs e)
         {
             var service = Program.ServiceProvider?.GetService(typeof(FormCreateOrder));

IceCreamShop/IceCreamShopView/FormMain.designer.cs

@@ -40,13 +40,14 @@
             buttonCreateOrder = new Button();
             dataGridView = new DataGridView();
             buttonUpd = new Button();
+            продажаМороженогоToolStripMenuItem = new ToolStripMenuItem();
             menuStrip.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
             SuspendLayout();
             // 
             // menuStrip
             // 
-            menuStrip.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem, пополнениеМагазинаToolStripMenuItem });
+            menuStrip.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem, пополнениеМагазинаToolStripMenuItem, продажаМороженогоToolStripMenuItem });
             menuStrip.Location = new Point(0, 0);
             menuStrip.Name = "menuStrip";
             menuStrip.Padding = new Padding(7, 2, 0, 2);
@@ -64,21 +65,21 @@
             // компонентыToolStripMenuItem
             // 
             компонентыToolStripMenuItem.Name = "компонентыToolStripMenuItem";
-            компонентыToolStripMenuItem.Size = new Size(180, 22);
+            компонентыToolStripMenuItem.Size = new Size(145, 22);
             компонентыToolStripMenuItem.Text = "Компоненты";
             компонентыToolStripMenuItem.Click += КомпонентыToolStripMenuItem_Click;
             // 
             // мороженоеToolStripMenuItem
             // 
             мороженоеToolStripMenuItem.Name = "мороженоеToolStripMenuItem";
-            мороженоеToolStripMenuItem.Size = new Size(180, 22);
+            мороженоеToolStripMenuItem.Size = new Size(145, 22);
             мороженоеToolStripMenuItem.Text = "Мороженое";
             мороженоеToolStripMenuItem.Click += МороженоеToolStripMenuItem_Click;
             // 
             // магазиныToolStripMenuItem
             // 
             магазиныToolStripMenuItem.Name = "магазиныToolStripMenuItem";
-            магазиныToolStripMenuItem.Size = new Size(180, 22);
+            магазиныToolStripMenuItem.Size = new Size(145, 22);
             магазиныToolStripMenuItem.Text = "Магазины";
             магазиныToolStripMenuItem.Click += МагазиныToolStripMenuItem_Click;
             // 
@@ -166,6 +167,13 @@
             buttonUpd.UseVisualStyleBackColor = true;
             buttonUpd.Click += ButtonUpd_Click;
             // 
+            // продажаМороженогоToolStripMenuItem
+            // 
+            продажаМороженогоToolStripMenuItem.Name = "продажаМороженогоToolStripMenuItem";
+            продажаМороженогоToolStripMenuItem.Size = new Size(143, 20);
+            продажаМороженогоToolStripMenuItem.Text = "Продажа мороженого";
+            продажаМороженогоToolStripMenuItem.Click += продажаМороженогоToolStripMenuItem_Click;
+            // 
             // FormMain
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
@@ -205,6 +213,7 @@
         private System.Windows.Forms.Button buttonUpd;
         private ToolStripMenuItem магазиныToolStripMenuItem;
         private ToolStripMenuItem пополнениеМагазинаToolStripMenuItem;
+        private ToolStripMenuItem продажаМороженогоToolStripMenuItem;
     }
 }
 

IceCreamShop/IceCreamShopView/FormShop.Designer.cs

@@ -41,6 +41,8 @@
             ColumnCount = new DataGridViewTextBoxColumn();
             buttonSave = new Button();
             buttonCancel = new Button();
+            textBoxMaximum = new TextBox();
+            labelMaximum = new Label();
             groupBoxIceCreams.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
             SuspendLayout();
@@ -101,7 +103,7 @@
             // groupBoxIceCreams
             // 
             groupBoxIceCreams.Controls.Add(dataGridView);
-            groupBoxIceCreams.Location = new Point(4, 100);
+            groupBoxIceCreams.Location = new Point(5, 138);
             groupBoxIceCreams.Margin = new Padding(4, 3, 4, 3);
             groupBoxIceCreams.Name = "groupBoxIceCreams";
             groupBoxIceCreams.Padding = new Padding(4, 3, 4, 3);
@@ -150,7 +152,7 @@
             // 
             // buttonSave
             // 
-            buttonSave.Location = new Point(255, 394);
+            buttonSave.Location = new Point(256, 434);
             buttonSave.Margin = new Padding(4, 3, 4, 3);
             buttonSave.Name = "buttonSave";
             buttonSave.Size = new Size(88, 27);
@@ -161,7 +163,7 @@
             // 
             // buttonCancel
             // 
-            buttonCancel.Location = new Point(359, 394);
+            buttonCancel.Location = new Point(360, 434);
             buttonCancel.Margin = new Padding(4, 3, 4, 3);
             buttonCancel.Name = "buttonCancel";
             buttonCancel.Size = new Size(88, 27);
@@ -170,11 +172,31 @@
             buttonCancel.UseVisualStyleBackColor = true;
             buttonCancel.Click += ButtonCancel_Click;
             // 
+            // textBoxMaximum
+            // 
+            textBoxMaximum.Location = new Point(169, 97);
+            textBoxMaximum.Margin = new Padding(4, 3, 4, 3);
+            textBoxMaximum.Name = "textBoxMaximum";
+            textBoxMaximum.Size = new Size(175, 23);
+            textBoxMaximum.TabIndex = 11;
+            // 
+            // labelMaximum
+            // 
+            labelMaximum.AutoSize = true;
+            labelMaximum.Location = new Point(14, 100);
+            labelMaximum.Margin = new Padding(4, 0, 4, 0);
+            labelMaximum.Name = "labelMaximum";
+            labelMaximum.Size = new Size(147, 15);
+            labelMaximum.TabIndex = 10;
+            labelMaximum.Text = "Максимум мороженого :";
+            // 
             // FormShop
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
-            ClientSize = new Size(478, 432);
+            ClientSize = new Size(478, 468);
+            Controls.Add(textBoxMaximum);
+            Controls.Add(labelMaximum);
             Controls.Add(buttonCancel);
             Controls.Add(buttonSave);
             Controls.Add(groupBoxIceCreams);
@@ -209,5 +231,7 @@
         private DataGridViewTextBoxColumn ColumnCount;
         private Button buttonSave;
         private Button buttonCancel;
+        private TextBox textBoxMaximum;
+        private Label labelMaximum;
     }
 }

IceCreamShop/IceCreamShopView/FormShop.cs

@@ -39,6 +39,7 @@ namespace IceCreamShopView
                         textBoxName.Text = view.ShopName;
                         textBoxAddress.Text = view.Address;
                         dateTimePicker.Value = view.DateOpening;
+                        textBoxMaximum.Text = view.IceCreamsMaximum.ToString();
                         _shopIceCreams = view.ShopIceCreams ?? new Dictionary<int, (IIceCreamModel, int)>();
                         LoadData();
                     }
@@ -89,6 +90,11 @@ namespace IceCreamShopView
                 MessageBox.Show("Заполните дату", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 return;
             }
+            if (string.IsNullOrEmpty(textBoxMaximum.Text))
+            {
+                MessageBox.Show("Заполните максимальное количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
             _logger.LogInformation("Shop saving");
             try
             {
@@ -98,6 +104,7 @@ namespace IceCreamShopView
                     ShopName = textBoxName.Text,
                     Address = textBoxAddress.Text,
                     DateOpening = dateTimePicker.Value,
+                    IceCreamsMaximum = Convert.ToInt32(textBoxMaximum.Text),
                     ShopIceCreams = _shopIceCreams
                 };
                 var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);

IceCreamShop/IceCreamShopView/Program.cs

@@ -55,6 +55,7 @@ namespace IceCreamShopView
             services.AddTransient<FormShop>();
             services.AddTransient<FormShops>();
             services.AddTransient<FormMakeShipment>();
+            services.AddTransient<FormIceCreamSale>();
         }
     }
 }