.

IceCreamShop/IceCreamShop/MainForm.Designer.cs

@@ -32,6 +32,8 @@
             ToolStripMenu = new ToolStripMenuItem();
             КомпонентыStripMenuItem = new ToolStripMenuItem();
             МороженноеStripMenuItem = new ToolStripMenuItem();
+            магазиныToolStripMenuItem = new ToolStripMenuItem();
+            поставкиToolStripMenuItem = new ToolStripMenuItem();
             отчетыToolStripMenuItem = new ToolStripMenuItem();
             списокМороженногоToolStripMenuItem = new ToolStripMenuItem();
             компонентыПоМороженнымToolStripMenuItem = new ToolStripMenuItem();
@@ -42,6 +44,7 @@
             ReadyButton = new Button();
             IssuedButton = new Button();
             RefreshButton = new Button();
+            продажиToolStripMenuItem = new ToolStripMenuItem();
             menuStrip1.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)DataGridView).BeginInit();
             SuspendLayout();
@@ -59,22 +62,22 @@
             // 
             // ToolStripMenu
             // 
-            ToolStripMenu.DropDownItems.AddRange(new ToolStripItem[] { КомпонентыStripMenuItem, МороженноеStripMenuItem });
+            ToolStripMenu.DropDownItems.AddRange(new ToolStripItem[] { КомпонентыStripMenuItem, МороженноеStripMenuItem, магазиныToolStripMenuItem, поставкиToolStripMenuItem, продажиToolStripMenuItem });
             ToolStripMenu.Name = "ToolStripMenu";
-            ToolStripMenu.Size = new Size(117, 24);
+            ToolStripMenu.Size = new Size(94, 20);
             ToolStripMenu.Text = "Справочники";
             // 
             // КомпонентыStripMenuItem
             // 
             КомпонентыStripMenuItem.Name = "КомпонентыStripMenuItem";
-            КомпонентыStripMenuItem.Size = new Size(186, 26);
+            КомпонентыStripMenuItem.Size = new Size(180, 22);
             КомпонентыStripMenuItem.Text = "Компоненты";
             КомпонентыStripMenuItem.Click += КомпонентыStripMenuItem_Click;
             // 
             // МороженноеStripMenuItem
             // 
             МороженноеStripMenuItem.Name = "МороженноеStripMenuItem";
-            МороженноеStripMenuItem.Size = new Size(186, 26);
+            МороженноеStripMenuItem.Size = new Size(180, 22);
             МороженноеStripMenuItem.Text = "Мороженное";
             МороженноеStripMenuItem.Click += МороженноеStripMenuItem_Click;
             // 
@@ -106,20 +109,35 @@
             списокЗаказовToolStripMenuItem.Text = "Список заказов";
             списокЗаказовToolStripMenuItem.Click += списокЗаказовToolStripMenuItem_Click;
             // 
+            // магазиныToolStripMenuItem
+            // 
+            магазиныToolStripMenuItem.Name = "магазиныToolStripMenuItem";
+            магазиныToolStripMenuItem.Size = new Size(180, 22);
+            магазиныToolStripMenuItem.Text = "Магазины";
+            магазиныToolStripMenuItem.Click += магазиныToolStripMenuItem_Click;
+            // 
+            // поставкиToolStripMenuItem
+            // 
+            поставкиToolStripMenuItem.Name = "поставкиToolStripMenuItem";
+            поставкиToolStripMenuItem.Size = new Size(180, 22);
+            поставкиToolStripMenuItem.Text = "Поставки";
+            поставкиToolStripMenuItem.Click += поставкиToolStripMenuItem_Click;
+            // 
             // DataGridView
             // 
             DataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
             DataGridView.Location = new Point(11, 31);
             DataGridView.Name = "DataGridView";
             DataGridView.RowHeadersWidth = 51;
-            DataGridView.Size = new Size(1007, 407);
+            DataGridView.Size = new Size(881, 305);
             DataGridView.TabIndex = 1;
             // 
             // CreateOrderButton
             // 
-            CreateOrderButton.Location = new Point(1025, 31);
+            CreateOrderButton.Location = new Point(897, 23);
+            CreateOrderButton.Margin = new Padding(3, 2, 3, 2);
             CreateOrderButton.Name = "CreateOrderButton";
-            CreateOrderButton.Size = new Size(259, 29);
+            CreateOrderButton.Size = new Size(227, 22);
             CreateOrderButton.TabIndex = 2;
             CreateOrderButton.Text = "Создать заказ";
             CreateOrderButton.UseVisualStyleBackColor = true;
@@ -129,7 +147,7 @@
             // 
             TakeInWorkButton.Location = new Point(1025, 67);
             TakeInWorkButton.Name = "TakeInWorkButton";
-            TakeInWorkButton.Size = new Size(259, 29);
+            TakeInWorkButton.Size = new Size(227, 22);
             TakeInWorkButton.TabIndex = 3;
             TakeInWorkButton.Text = "Отдать заказ в работу";
             TakeInWorkButton.UseVisualStyleBackColor = true;
@@ -137,9 +155,10 @@
             // 
             // ReadyButton
             // 
-            ReadyButton.Location = new Point(1025, 101);
+            ReadyButton.Location = new Point(897, 76);
+            ReadyButton.Margin = new Padding(3, 2, 3, 2);
             ReadyButton.Name = "ReadyButton";
-            ReadyButton.Size = new Size(259, 29);
+            ReadyButton.Size = new Size(227, 22);
             ReadyButton.TabIndex = 4;
             ReadyButton.Text = "Заказ готов";
             ReadyButton.UseVisualStyleBackColor = true;
@@ -147,9 +166,10 @@
             // 
             // IssuedButton
             // 
-            IssuedButton.Location = new Point(1025, 136);
+            IssuedButton.Location = new Point(897, 102);
+            IssuedButton.Margin = new Padding(3, 2, 3, 2);
             IssuedButton.Name = "IssuedButton";
-            IssuedButton.Size = new Size(259, 29);
+            IssuedButton.Size = new Size(227, 22);
             IssuedButton.TabIndex = 5;
             IssuedButton.Text = "Заказ выдан";
             IssuedButton.UseVisualStyleBackColor = true;
@@ -157,17 +177,25 @@
             // 
             // RefreshButton
             // 
-            RefreshButton.Location = new Point(1025, 171);
+            RefreshButton.Location = new Point(897, 128);
+            RefreshButton.Margin = new Padding(3, 2, 3, 2);
             RefreshButton.Name = "RefreshButton";
-            RefreshButton.Size = new Size(259, 29);
+            RefreshButton.Size = new Size(227, 22);
             RefreshButton.TabIndex = 6;
             RefreshButton.Text = "Обновить";
             RefreshButton.UseVisualStyleBackColor = true;
             RefreshButton.Click += RefreshButton_Click;
             // 
+            // продажиToolStripMenuItem
+            // 
+            продажиToolStripMenuItem.Name = "продажиToolStripMenuItem";
+            продажиToolStripMenuItem.Size = new Size(180, 22);
+            продажиToolStripMenuItem.Text = "Продажи";
+            продажиToolStripMenuItem.Click += продажиToolStripMenuItem_Click;
+            // 
             // MainForm
             // 
-            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
             ClientSize = new Size(1296, 451);
             Controls.Add(RefreshButton);
@@ -178,6 +206,7 @@
             Controls.Add(DataGridView);
             Controls.Add(menuStrip1);
             MainMenuStrip = menuStrip1;
+            Margin = new Padding(3, 2, 3, 2);
             Name = "MainForm";
             Text = "Форма главная";
             Load += MainForm_Load;
@@ -204,5 +233,8 @@
         private ToolStripMenuItem списокМороженногоToolStripMenuItem;
         private ToolStripMenuItem компонентыПоМороженнымToolStripMenuItem;
         private ToolStripMenuItem списокЗаказовToolStripMenuItem;
+        private ToolStripMenuItem магазиныToolStripMenuItem;
+        private ToolStripMenuItem поставкиToolStripMenuItem;
+        private ToolStripMenuItem продажиToolStripMenuItem;
     }
 }

IceCreamShop/IceCreamShop/MainForm.cs

@@ -184,6 +184,33 @@ Program.ServiceProvider?.GetService(typeof(OrderForm));
             LoadData();
         }
 
+        private void магазиныToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(ShopsForm));
+            if (service is ShopsForm form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void поставкиToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(SupplyForm));
+            if (service is SupplyForm form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void продажиToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(SellForm));
+            if (service is SellForm form)
+            {
+                form.ShowDialog();
+            }
+        }
+
         private void списокМороженногоToolStripMenuItem_Click(object sender, EventArgs e)
         {
             using var dialog = new SaveFileDialog { Filter = "docx|*.docx" };

IceCreamShop/IceCreamShop/Program.cs

@@ -36,6 +36,8 @@ namespace IceCreamShop
                 option.AddNLog("nlog.config");
             });
             services.AddTransient<IComponentStorage, ComponentStorage>();
+            services.AddTransient<IShopLogic, ShopLogic>();
+            services.AddTransient<IShopStorage, ShopStorage>();
             services.AddTransient<IOrderStorage, OrderStorage>();
             services.AddTransient<IIceCreamStorage, IceCreamStorage>();
             services.AddTransient<IComponentLogic, ComponentLogic>();
@@ -49,6 +51,10 @@ namespace IceCreamShop
             services.AddTransient<IceCreamForm>();
             services.AddTransient<IceCreamComponentForm>();
             services.AddTransient<IceCreamsForm>();
+            services.AddTransient<ShopForm>();
+            services.AddTransient<ShopsForm>();
+            services.AddTransient<SupplyForm>();
+            services.AddTransient<SellForm>();
             services.AddTransient<ReportIceCreamComponentForm>();
             services.AddTransient<ReportOrdersForm>();
             services.AddTransient<AbstractSaveToExcel, SaveToExcel>();

IceCreamShop/IceCreamShop/SellForm.Designer.cs

@@ -0,0 +1,117 @@
+namespace IceCreamShop
+{
+    partial class SellForm
+    {
+        /// <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()
+        {
+            IceCreamComboBox = new ComboBox();
+            IceCreamLabel = new Label();
+            CountLabel = new Label();
+            CountTextBox = new TextBox();
+            SaveButton = new Button();
+            CancelButton = new Button();
+            SuspendLayout();
+            // 
+            // IceCreamComboBox
+            // 
+            IceCreamComboBox.FormattingEnabled = true;
+            IceCreamComboBox.Location = new Point(99, 12);
+            IceCreamComboBox.Name = "IceCreamComboBox";
+            IceCreamComboBox.Size = new Size(121, 23);
+            IceCreamComboBox.TabIndex = 0;
+            // 
+            // IceCreamLabel
+            // 
+            IceCreamLabel.AutoSize = true;
+            IceCreamLabel.Location = new Point(12, 20);
+            IceCreamLabel.Name = "IceCreamLabel";
+            IceCreamLabel.Size = new Size(81, 15);
+            IceCreamLabel.TabIndex = 1;
+            IceCreamLabel.Text = "Мороженное";
+            // 
+            // CountLabel
+            // 
+            CountLabel.AutoSize = true;
+            CountLabel.Location = new Point(21, 49);
+            CountLabel.Name = "CountLabel";
+            CountLabel.Size = new Size(72, 15);
+            CountLabel.TabIndex = 2;
+            CountLabel.Text = "Количество";
+            // 
+            // CountTextBox
+            // 
+            CountTextBox.Location = new Point(99, 41);
+            CountTextBox.Name = "CountTextBox";
+            CountTextBox.Size = new Size(121, 23);
+            CountTextBox.TabIndex = 3;
+            // 
+            // SaveButton
+            // 
+            SaveButton.Location = new Point(64, 73);
+            SaveButton.Name = "SaveButton";
+            SaveButton.Size = new Size(75, 23);
+            SaveButton.TabIndex = 4;
+            SaveButton.Text = "Сохранить";
+            SaveButton.UseVisualStyleBackColor = true;
+            SaveButton.Click += SaveButton_Click;
+            // 
+            // CancelButton
+            // 
+            CancelButton.Location = new Point(145, 73);
+            CancelButton.Name = "CancelButton";
+            CancelButton.Size = new Size(75, 23);
+            CancelButton.TabIndex = 5;
+            CancelButton.Text = "Отмена";
+            CancelButton.UseVisualStyleBackColor = true;
+            // 
+            // SellForm
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(224, 108);
+            Controls.Add(CancelButton);
+            Controls.Add(SaveButton);
+            Controls.Add(CountTextBox);
+            Controls.Add(CountLabel);
+            Controls.Add(IceCreamLabel);
+            Controls.Add(IceCreamComboBox);
+            Name = "SellForm";
+            Text = "Форма продажи";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private ComboBox IceCreamComboBox;
+        private Label IceCreamLabel;
+        private Label CountLabel;
+        private TextBox CountTextBox;
+        private Button SaveButton;
+        private Button CancelButton;
+    }
+}

IceCreamShop/IceCreamShop/SellForm.cs

@@ -0,0 +1,117 @@
+using IceCreamShopContracts.BusinessLogicsContracts;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace IceCreamShop
+{
+    public partial class SellForm : Form
+    {
+        private readonly List<IceCreamViewModel>? _iceCreamList;
+        IShopLogic _shopLogic;
+        IIceCreamLogic _iceCreamLogic;
+        public SellForm(IIceCreamLogic iceCreamLogic, IShopLogic shopLogic)
+        {
+            InitializeComponent();
+            _shopLogic = shopLogic;
+            _iceCreamLogic = iceCreamLogic;
+            _iceCreamList = iceCreamLogic.ReadList(null);
+            if (_iceCreamList != null)
+            {
+                IceCreamComboBox.DisplayMember = "IceCreamName";
+                IceCreamComboBox.ValueMember = "Id";
+                IceCreamComboBox.DataSource = _iceCreamList;
+                IceCreamComboBox.SelectedItem = null;
+            }
+        }
+        public int IceCreamId
+        {
+            get
+            {
+                return
+       Convert.ToInt32(IceCreamComboBox.SelectedValue);
+            }
+            set
+            {
+                IceCreamComboBox.SelectedValue = value;
+            }
+        }
+
+        public IIceCreamModel? IceCreamModel
+        {
+            get
+            {
+                if (_iceCreamList == null)
+                {
+                    return null;
+                }
+                foreach (var elem in _iceCreamList)
+                {
+                    if (elem.Id == IceCreamId)
+                    {
+                        return elem;
+                    }
+                }
+                return null;
+            }
+        }
+
+
+        public int Count
+        {
+            get { return Convert.ToInt32(CountTextBox.Text); }
+            set
+            { CountTextBox.Text = value.ToString(); }
+        }
+
+        private void SaveButton_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(CountTextBox.Text))
+            {
+                MessageBox.Show("Заполните поле Количество", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (IceCreamComboBox.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите мороженное", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            try
+            {
+                int count = Convert.ToInt32(CountTextBox.Text);
+
+                bool res = _shopLogic.MakeSell(
+                    _iceCreamLogic.ReadElement(new() { Id = Convert.ToInt32(IceCreamComboBox.SelectedValue) }),
+                    count
+                );
+
+                if (!res)
+                {
+                    throw new Exception("Ошибка при продаже.");
+                }
+
+                MessageBox.Show("Продажа прошла успешно");
+                DialogResult = DialogResult.OK;
+                Close();
+
+            }
+            catch (Exception err)
+            {
+                MessageBox.Show("Ошибка продажи");
+                return;
+            }
+        }
+    }
+}

IceCreamShop/IceCreamShop/SellForm.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/IceCreamShop/ShopForm.Designer.cs

@@ -0,0 +1,220 @@
+namespace IceCreamShop
+{
+    partial class ShopForm
+    {
+        /// <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()
+        {
+            DateTimePicker = new DateTimePicker();
+            NameTextBox = new TextBox();
+            AddressTextBox = new TextBox();
+            NameLabel = new Label();
+            AdressLabel = new Label();
+            DateLabel = new Label();
+            SaveButton = new Button();
+            CancelButton = new Button();
+            DataGridView = new DataGridView();
+            Column1 = new DataGridViewTextBoxColumn();
+            Название = new DataGridViewTextBoxColumn();
+            Цена = new DataGridViewTextBoxColumn();
+            Количество = new DataGridViewTextBoxColumn();
+            CapacityUpDown = new NumericUpDown();
+            CapacityLabel = new Label();
+            ((System.ComponentModel.ISupportInitialize)DataGridView).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)CapacityUpDown).BeginInit();
+            SuspendLayout();
+            // 
+            // DateTimePicker
+            // 
+            DateTimePicker.Location = new Point(85, 70);
+            DateTimePicker.Name = "DateTimePicker";
+            DateTimePicker.Size = new Size(318, 23);
+            DateTimePicker.TabIndex = 0;
+            // 
+            // NameTextBox
+            // 
+            NameTextBox.Location = new Point(85, 12);
+            NameTextBox.Name = "NameTextBox";
+            NameTextBox.Size = new Size(318, 23);
+            NameTextBox.TabIndex = 1;
+            // 
+            // AddressTextBox
+            // 
+            AddressTextBox.Location = new Point(85, 41);
+            AddressTextBox.Name = "AddressTextBox";
+            AddressTextBox.Size = new Size(318, 23);
+            AddressTextBox.TabIndex = 2;
+            // 
+            // NameLabel
+            // 
+            NameLabel.AutoSize = true;
+            NameLabel.Location = new Point(12, 15);
+            NameLabel.Name = "NameLabel";
+            NameLabel.Size = new Size(59, 15);
+            NameLabel.TabIndex = 3;
+            NameLabel.Text = "Название";
+            // 
+            // AdressLabel
+            // 
+            AdressLabel.AutoSize = true;
+            AdressLabel.Location = new Point(12, 44);
+            AdressLabel.Name = "AdressLabel";
+            AdressLabel.Size = new Size(40, 15);
+            AdressLabel.TabIndex = 4;
+            AdressLabel.Text = "Адрес";
+            // 
+            // DateLabel
+            // 
+            DateLabel.AutoSize = true;
+            DateLabel.Location = new Point(12, 76);
+            DateLabel.Name = "DateLabel";
+            DateLabel.Size = new Size(32, 15);
+            DateLabel.TabIndex = 5;
+            DateLabel.Text = "Дата";
+            // 
+            // SaveButton
+            // 
+            SaveButton.Location = new Point(247, 284);
+            SaveButton.Name = "SaveButton";
+            SaveButton.Size = new Size(75, 23);
+            SaveButton.TabIndex = 6;
+            SaveButton.Text = "Сохранить";
+            SaveButton.UseVisualStyleBackColor = true;
+            SaveButton.Click += SaveButton_Click;
+            // 
+            // CancelButton
+            // 
+            CancelButton.Location = new Point(328, 284);
+            CancelButton.Name = "CancelButton";
+            CancelButton.Size = new Size(75, 23);
+            CancelButton.TabIndex = 7;
+            CancelButton.Text = "Отмена";
+            CancelButton.UseVisualStyleBackColor = true;
+            CancelButton.Click += CancelButton_Click;
+            // 
+            // DataGridView
+            // 
+            DataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            DataGridView.Columns.AddRange(new DataGridViewColumn[] { Column1, Название, Цена, Количество });
+            DataGridView.Location = new Point(12, 128);
+            DataGridView.Name = "DataGridView";
+            DataGridView.RowHeadersWidth = 51;
+            DataGridView.Size = new Size(391, 150);
+            DataGridView.TabIndex = 8;
+            // 
+            // Column1
+            // 
+            Column1.HeaderText = "Column1";
+            Column1.MinimumWidth = 6;
+            Column1.Name = "Column1";
+            Column1.Visible = false;
+            Column1.Width = 125;
+            // 
+            // Название
+            // 
+            Название.HeaderText = "Название";
+            Название.MinimumWidth = 6;
+            Название.Name = "Название";
+            Название.ReadOnly = true;
+            Название.Width = 150;
+            // 
+            // Цена
+            // 
+            Цена.HeaderText = "Цена";
+            Цена.MinimumWidth = 6;
+            Цена.Name = "Цена";
+            Цена.ReadOnly = true;
+            Цена.Width = 125;
+            // 
+            // Количество
+            // 
+            Количество.HeaderText = "Количество";
+            Количество.MinimumWidth = 6;
+            Количество.Name = "Количество";
+            Количество.ReadOnly = true;
+            Количество.Width = 125;
+            // 
+            // CapacityUpDown
+            // 
+            CapacityUpDown.Location = new Point(98, 99);
+            CapacityUpDown.Maximum = new decimal(new int[] { 10000, 0, 0, 0 });
+            CapacityUpDown.Name = "CapacityUpDown";
+            CapacityUpDown.Size = new Size(120, 23);
+            CapacityUpDown.TabIndex = 9;
+            // 
+            // CapacityLabel
+            // 
+            CapacityLabel.AutoSize = true;
+            CapacityLabel.Location = new Point(12, 107);
+            CapacityLabel.Name = "CapacityLabel";
+            CapacityLabel.Size = new Size(80, 15);
+            CapacityLabel.TabIndex = 10;
+            CapacityLabel.Text = "Вместимость";
+            // 
+            // ShopForm
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(411, 315);
+            Controls.Add(CapacityLabel);
+            Controls.Add(CapacityUpDown);
+            Controls.Add(DataGridView);
+            Controls.Add(CancelButton);
+            Controls.Add(SaveButton);
+            Controls.Add(DateLabel);
+            Controls.Add(AdressLabel);
+            Controls.Add(NameLabel);
+            Controls.Add(AddressTextBox);
+            Controls.Add(NameTextBox);
+            Controls.Add(DateTimePicker);
+            Name = "ShopForm";
+            Text = "Форма магазина";
+            Load += ShopForm_Load;
+            ((System.ComponentModel.ISupportInitialize)DataGridView).EndInit();
+            ((System.ComponentModel.ISupportInitialize)CapacityUpDown).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private DateTimePicker DateTimePicker;
+        private TextBox NameTextBox;
+        private TextBox AddressTextBox;
+        private Label NameLabel;
+        private Label AdressLabel;
+        private Label DateLabel;
+        private Button SaveButton;
+        private Button CancelButton;
+        private DataGridView DataGridView;
+        private DataGridViewTextBoxColumn Column1;
+        private DataGridViewTextBoxColumn Название;
+        private DataGridViewTextBoxColumn Цена;
+        private DataGridViewTextBoxColumn Количество;
+        private NumericUpDown CapacityUpDown;
+        private Label CapacityLabel;
+    }
+}

IceCreamShop/IceCreamShop/ShopForm.cs

@@ -0,0 +1,125 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.BusinessLogicsContracts;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace IceCreamShop
+{
+    public partial class ShopForm : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IShopLogic _logic;
+        public int? _id;
+        private Dictionary<int, (IIceCreamModel, int)> _iceCreams;
+        public ShopForm(ILogger<ShopForm> logger, IShopLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void ShopForm_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Загрузка магазина");
+                try
+                {
+                    var shop = _logic.ReadElement(new ShopSearchModel { Id = _id });
+                    if (shop != null)
+                    {
+                        NameTextBox.Text = shop.ShopName;
+                        AddressTextBox.Text = shop.Address;
+                        DateTimePicker.Text = shop.DateOpen.ToString();
+                        CapacityUpDown.Value = shop.MaxCapacity;
+                        _iceCreams = shop.ShopIceCreams ?? new Dictionary<int, (IIceCreamModel, int)>();
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка загрузки магазина");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка товаров магазина");
+            try
+            {
+                if (_iceCreams != null)
+                {
+                    foreach (var iceCream in _iceCreams)
+                    {
+                        DataGridView.Rows.Add(new object[] { iceCream.Key, iceCream.Value.Item1.IceCreamName, iceCream.Value.Item1.Price, iceCream.Value.Item2 });
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки изделий магазина");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void CancelButton_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void SaveButton_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(NameTextBox.Text))
+            {
+                MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (string.IsNullOrEmpty(AddressTextBox.Text))
+            {
+                MessageBox.Show("Заполните адрес", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Сохранение магазина");
+            try
+            {
+                var model = new ShopBindingModel
+                {
+                    Id = _id ?? 0,
+                    ShopName = NameTextBox.Text,
+                    Address = AddressTextBox.Text,
+                    DateOpen = DateTimePicker.Value.Date,
+                    MaxCapacity = Convert.ToInt32(CapacityUpDown.Value),
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка сохранения магазина");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}

IceCreamShop/IceCreamShop/ShopForm.resx

@@ -0,0 +1,132 @@
+<?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>
+  <metadata name="Column1.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="Название.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="Цена.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="Количество.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

IceCreamShop/IceCreamShop/ShopsForm.Designer.cs

@@ -0,0 +1,124 @@
+namespace IceCreamShop
+{
+    partial class ShopsForm
+    {
+        /// <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()
+        {
+            DataGridView = new DataGridView();
+            AddButton = new Button();
+            UpdateButton = new Button();
+            RefreshButton = new Button();
+            DeleteButton = new Button();
+            ((System.ComponentModel.ISupportInitialize)DataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // DataGridView
+            // 
+            DataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            DataGridView.Location = new Point(14, 16);
+            DataGridView.Margin = new Padding(3, 4, 3, 4);
+            DataGridView.Name = "DataGridView";
+            DataGridView.RowHeadersWidth = 51;
+            DataGridView.Size = new Size(449, 499);
+            DataGridView.TabIndex = 0;
+            // 
+            // AddButton
+            // 
+            AddButton.Location = new Point(470, 16);
+            AddButton.Margin = new Padding(3, 4, 3, 4);
+            AddButton.Name = "AddButton";
+            AddButton.Size = new Size(130, 31);
+            AddButton.TabIndex = 1;
+            AddButton.Text = "Добавить";
+            AddButton.UseVisualStyleBackColor = true;
+            AddButton.Click += AddButton_Click;
+            // 
+            // UpdateButton
+            // 
+            UpdateButton.Location = new Point(470, 55);
+            UpdateButton.Margin = new Padding(3, 4, 3, 4);
+            UpdateButton.Name = "UpdateButton";
+            UpdateButton.Size = new Size(130, 31);
+            UpdateButton.TabIndex = 2;
+            UpdateButton.Text = "Изменить";
+            UpdateButton.UseVisualStyleBackColor = true;
+            UpdateButton.Click += UpdateButton_Click;
+            // 
+            // RefreshButton
+            // 
+            RefreshButton.Location = new Point(470, 93);
+            RefreshButton.Margin = new Padding(3, 4, 3, 4);
+            RefreshButton.Name = "RefreshButton";
+            RefreshButton.Size = new Size(130, 31);
+            RefreshButton.TabIndex = 3;
+            RefreshButton.Text = "Обновить";
+            RefreshButton.UseVisualStyleBackColor = true;
+            RefreshButton.Click += RefreshButton_Click;
+            // 
+            // DeleteButton
+            // 
+            DeleteButton.Location = new Point(470, 132);
+            DeleteButton.Margin = new Padding(3, 4, 3, 4);
+            DeleteButton.Name = "DeleteButton";
+            DeleteButton.Size = new Size(130, 31);
+            DeleteButton.TabIndex = 4;
+            DeleteButton.Text = "Удалить";
+            DeleteButton.UseVisualStyleBackColor = true;
+            DeleteButton.Click += DeleteButton_Click;
+            // 
+            // ShopsForm
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(616, 537);
+            Controls.Add(DeleteButton);
+            Controls.Add(RefreshButton);
+            Controls.Add(UpdateButton);
+            Controls.Add(AddButton);
+            Controls.Add(DataGridView);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "ShopsForm";
+            Text = "Форма магазинов";
+            Load += ShopsForm_Load;
+            ((System.ComponentModel.ISupportInitialize)DataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView DataGridView;
+        private Button AddButton;
+        private Button UpdateButton;
+        private Button RefreshButton;
+        private Button DeleteButton;
+        private DataGridViewTextBoxColumn Column1;
+        private DataGridViewTextBoxColumn Column2;
+        private DataGridViewTextBoxColumn Column3;
+        private DataGridViewTextBoxColumn Column4;
+        private DataGridViewTextBoxColumn Column5;
+    }
+}

IceCreamShop/IceCreamShop/ShopsForm.cs

@@ -0,0 +1,118 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace IceCreamShop
+{
+    public partial class ShopsForm : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IShopLogic _logic;
+        public ShopsForm(ILogger<ShopsForm> logger, IShopLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    DataGridView.DataSource = list;
+                    DataGridView.Columns["Id"].Visible = false;
+                    DataGridView.Columns["ShopName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    DataGridView.Columns["Address"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    DataGridView.Columns["DateOpen"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    DataGridView.Columns["ShopIceCreams"].Visible = false;
+                }
+                _logger.LogInformation("Загрузка магазинов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки магазинов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ShopsForm_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void AddButton_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(ShopForm));
+            if (service is ShopForm form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+
+        private void UpdateButton_Click(object sender, EventArgs e)
+        {
+            if (DataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(ShopForm));
+                if (service is ShopForm form)
+                {
+                    var tmp = Convert.ToInt32(DataGridView.SelectedRows[0].Cells["Id"].Value);
+                    form._id = Convert.ToInt32(DataGridView.SelectedRows[0].Cells["Id"].Value);
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void RefreshButton_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void DeleteButton_Click(object sender, EventArgs e)
+        {
+            if (DataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(DataGridView.SelectedRows[0].Cells["Id"].Value);
+                    _logger.LogInformation("Удаление магазина");
+                    try
+                    {
+                        if (!_logic.Delete(new ShopBindingModel
+                        {
+                            Id = id
+                        }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Ошибка удаления магазина");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+    }
+}

IceCreamShop/IceCreamShop/ShopsForm.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/IceCreamShop/SupplyForm.Designer.cs

@@ -0,0 +1,111 @@
+namespace IceCreamShop
+{
+    partial class SupplyForm
+    {
+        /// <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()
+        {
+            ShopComboBox = new ComboBox();
+            IceCreamComboBox = new ComboBox();
+            CountTextBox = new TextBox();
+            SaveButton = new Button();
+            CancelButton = new Button();
+            SuspendLayout();
+            // 
+            // ShopComboBox
+            // 
+            ShopComboBox.FormattingEnabled = true;
+            ShopComboBox.Location = new Point(14, 16);
+            ShopComboBox.Margin = new Padding(3, 4, 3, 4);
+            ShopComboBox.Name = "ShopComboBox";
+            ShopComboBox.Size = new Size(378, 28);
+            ShopComboBox.TabIndex = 0;
+            // 
+            // IceCreamComboBox
+            // 
+            IceCreamComboBox.FormattingEnabled = true;
+            IceCreamComboBox.Location = new Point(14, 55);
+            IceCreamComboBox.Margin = new Padding(3, 4, 3, 4);
+            IceCreamComboBox.Name = "IceCreamComboBox";
+            IceCreamComboBox.Size = new Size(378, 28);
+            IceCreamComboBox.TabIndex = 1;
+            // 
+            // CountTextBox
+            // 
+            CountTextBox.Location = new Point(14, 93);
+            CountTextBox.Margin = new Padding(3, 4, 3, 4);
+            CountTextBox.Name = "CountTextBox";
+            CountTextBox.Size = new Size(378, 27);
+            CountTextBox.TabIndex = 2;
+            // 
+            // SaveButton
+            // 
+            SaveButton.Location = new Point(214, 132);
+            SaveButton.Margin = new Padding(3, 4, 3, 4);
+            SaveButton.Name = "SaveButton";
+            SaveButton.Size = new Size(86, 31);
+            SaveButton.TabIndex = 3;
+            SaveButton.Text = "Сохранить";
+            SaveButton.UseVisualStyleBackColor = true;
+            SaveButton.Click += SaveButton_Click;
+            // 
+            // CancelButton
+            // 
+            CancelButton.Location = new Point(306, 132);
+            CancelButton.Margin = new Padding(3, 4, 3, 4);
+            CancelButton.Name = "CancelButton";
+            CancelButton.Size = new Size(86, 31);
+            CancelButton.TabIndex = 4;
+            CancelButton.Text = "Отмена";
+            CancelButton.UseVisualStyleBackColor = true;
+            CancelButton.Click += CancelButton_Click;
+            // 
+            // SupplyForm
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(406, 181);
+            Controls.Add(CancelButton);
+            Controls.Add(SaveButton);
+            Controls.Add(CountTextBox);
+            Controls.Add(IceCreamComboBox);
+            Controls.Add(ShopComboBox);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "SupplyForm";
+            Text = "Форма поставок";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private ComboBox ShopComboBox;
+        private ComboBox IceCreamComboBox;
+        private TextBox CountTextBox;
+        private Button SaveButton;
+        private Button CancelButton;
+    }
+}

IceCreamShop/IceCreamShop/SupplyForm.cs

@@ -0,0 +1,153 @@
+using IceCreamShopBusinessLogic.BusinessLogic;
+using IceCreamShopContracts.BusinessLogicsContracts;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace IceCreamShop
+{
+    public partial class SupplyForm : Form
+    {
+        private readonly List<IceCreamViewModel>? _iceCreamList;
+        private readonly List<ShopViewModel>? _shopsList;
+        IShopLogic _shopLogic;
+        IIceCreamLogic _iceCreamLogic;
+        public int ShopId
+        {
+            get
+            {
+                return
+       Convert.ToInt32(ShopComboBox.SelectedValue);
+            }
+            set
+            {
+                ShopComboBox.SelectedValue = value;
+            }
+        }
+        public int IceCreamId
+        {
+            get
+            {
+                return
+       Convert.ToInt32(IceCreamComboBox.SelectedValue);
+            }
+            set
+            {
+                IceCreamComboBox.SelectedValue = value;
+            }
+        }
+
+        public IIceCreamModel? IceCreamModel
+        {
+            get
+            {
+                if (_iceCreamList == null)
+                {
+                    return null;
+                }
+                foreach (var elem in _iceCreamList)
+                {
+                    if (elem.Id == IceCreamId)
+                    {
+                        return elem;
+                    }
+                }
+                return null;
+            }
+        }
+
+
+        public int Count
+        {
+            get { return Convert.ToInt32(CountTextBox.Text); }
+            set
+            { CountTextBox.Text = value.ToString(); }
+        }
+        public SupplyForm(IIceCreamLogic iceCreamLogic, IShopLogic shopLogic)
+        {
+            InitializeComponent();
+            _shopLogic = shopLogic;
+            _iceCreamLogic = iceCreamLogic;
+            _iceCreamList = iceCreamLogic.ReadList(null);
+            _shopsList = shopLogic.ReadList(null);
+            if (_iceCreamList != null)
+            {
+                IceCreamComboBox.DisplayMember = "IceCreamName";
+                IceCreamComboBox.ValueMember = "Id";
+                IceCreamComboBox.DataSource = _iceCreamList;
+                IceCreamComboBox.SelectedItem = null;
+            }
+            if (_shopsList != null)
+            {
+                ShopComboBox.DisplayMember = "ShopName";
+                ShopComboBox.ValueMember = "Id";
+                ShopComboBox.DataSource = _shopsList;
+                ShopComboBox.SelectedItem = null;
+            }
+        }
+
+        private void SaveButton_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(CountTextBox.Text))
+            {
+                MessageBox.Show("Заполните поле Количество", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (IceCreamComboBox.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите мороженное", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (ShopComboBox.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите магазин", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            try
+            {
+                int count = Convert.ToInt32(CountTextBox.Text);
+
+                bool res = _shopLogic.MakeSupply(
+                    new ShopSearchModel() { Id = Convert.ToInt32(ShopComboBox.SelectedValue) },
+                    _iceCreamLogic.ReadElement(new() { Id = Convert.ToInt32(IceCreamComboBox.SelectedValue) }),
+                    count
+                );
+
+                if (!res)
+                {
+                    throw new Exception("Ошибка при пополнении. Дополнительная информация в логах");
+                }
+
+                MessageBox.Show("Пополнение прошло успешно");
+                DialogResult = DialogResult.OK;
+                Close();
+
+            }
+            catch (Exception err)
+            {
+                MessageBox.Show("Ошибка пополнения");
+                return;
+            }
+        }
+
+        private void CancelButton_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

IceCreamShop/IceCreamShop/SupplyForm.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/IceCreamShopBusinessLogic/BusinessLogic/OrderLogic.cs

@@ -5,6 +5,7 @@ using IceCreamShopContracts.StoragesContracts;
 using IceCreamShopContracts.ViewModels;
 using IceCreamShopDataModels;
 using IceCreamShopDataModels.Enums;
+using IceCreamShopDataModels.Models;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
@@ -18,11 +19,17 @@ namespace IceCreamShopBusinessLogic.BusinessLogic
     {
         private readonly ILogger _logger;
         private readonly IOrderStorage _orderStorage;
+        private readonly IShopStorage _shopStorage;
+        private readonly IShopLogic _shopLogic;
+        private readonly IIceCreamStorage _iceCreamStorage;
 
-        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        public OrderLogic(IOrderStorage orderStorage, IShopStorage shopStorage, IShopLogic shopLogic, IIceCreamStorage iceCreamStorage, ILogger<OrderLogic> logger)
         {
-            _logger = logger;
             _orderStorage = orderStorage;
+            _shopStorage = shopStorage;
+            _logger = logger;
+            _shopLogic = shopLogic;
+            _iceCreamStorage = iceCreamStorage;
         }
 
         public List<OrderViewModel>? ReadList(OrderSearchModel? model)
@@ -52,6 +59,65 @@ namespace IceCreamShopBusinessLogic.BusinessLogic
             return true;
         }
 
+        public bool CheckSupply(IIceCreamModel iceCream, int count)
+        {
+            if (count <= 0)
+            {
+                _logger.LogWarning("Check then supply operation error. IceCream count < 0.");
+                return false;
+            }
+
+            int sumCapacity = 0;
+            int sumCount = 0;
+            sumCapacity = _shopStorage.GetFullList().Select(x => x.MaxCapacity).Sum();
+            sumCount = _shopStorage.GetFullList().Select(x => x.ShopIceCreams.Select(y => y.Value.Item2).Sum()).Sum();
+            int freeSpace = sumCapacity - sumCount;
+
+            if (freeSpace - count < 0)
+            {
+                _logger.LogWarning("Check then supply operation error. There's no place for new IceCream in shops.");
+                return false;
+            }
+
+            foreach (var shop in _shopStorage.GetFullList())
+            {
+                freeSpace = shop.MaxCapacity;
+                foreach (var doc in shop.ShopIceCreams)
+                {
+                    freeSpace -= doc.Value.Item2;
+                }
+                if (freeSpace == 0)
+                {
+                    continue;
+                }
+                if (freeSpace - count >= 0)
+                {
+                    if (_shopLogic.MakeSupply(new() { Id = shop.Id }, iceCream, count)) 
+                        count = 0;
+                    else
+                    {
+                        _logger.LogWarning("Supply error");
+                        return false;
+                    }
+                }
+                if (freeSpace - count < 0)
+                {
+                    if (_shopLogic.MakeSupply(new() { Id = shop.Id }, iceCream, freeSpace)) 
+                        count -= freeSpace;
+                    else
+                    {
+                        _logger.LogWarning("Supply error");
+                        return false;
+                    }
+                }
+                if (count <= 0)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
+
         public bool ChangeStatus(OrderBindingModel model, OrderStatus status)
         {
             CheckModel(model);
@@ -66,6 +132,20 @@ namespace IceCreamShopBusinessLogic.BusinessLogic
                 _logger.LogWarning("Status change operation failed");
                 throw new InvalidOperationException("Текущий статус заказа не может быть переведен в выбранный");
             }
+            if(element.Status == OrderStatus.Готов)
+            {
+                var icecream = _iceCreamStorage.GetElement(new IceCreamSearchModel() { Id = model.IceCreamId });
+                if (icecream == null)
+                {
+                    _logger.LogWarning("Status update to " + status.ToString() + " operation failed. Document not found.");
+                    return false;
+                }
+                if (CheckSupply(icecream, model.Count) == false)
+                {
+                    _logger.LogWarning("Status update to " + status.ToString() + " operation failed. Shop supply error.");
+                    return false;
+                }
+            }
             model.Status = status;
             if (model.Status == OrderStatus.Выдан) model.DateImplement = DateTime.Now;
             _orderStorage.Update(model);

IceCreamShop/IceCreamShopBusinessLogic/BusinessLogic/ShopLogic.cs

@@ -0,0 +1,179 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.BusinessLogicsContracts;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.StoragesContracts;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopBusinessLogic.BusinessLogic
+{
+    public class ShopLogic : IShopLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IShopStorage _shopStorage;
+
+        public ShopLogic(ILogger<ShopLogic> logger, IShopStorage shopStorage)
+        {
+            _logger = logger;
+            _shopStorage = shopStorage;
+        }
+
+        public List<ShopViewModel> ReadList(ShopSearchModel model)
+        {
+            _logger.LogInformation("ReadList. ShopName:{Name}. Id:{ Id}", model?.Name, model?.Id);
+            var list = model == null ? _shopStorage.GetFullList() :
+_shopStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+
+        }
+
+        public bool MakeSupply(ShopSearchModel model, IIceCreamModel iceCream, int count)
+        {
+
+            if (model == null)
+                throw new ArgumentNullException(nameof(model));
+            if (iceCream == null)
+                throw new ArgumentNullException(nameof(iceCream));
+            if (count <= 0)
+                throw new ArgumentNullException("Количество должно быть положительным числом");
+
+            ShopViewModel curModel = _shopStorage.GetElement(model);
+            if (curModel == null)
+                throw new ArgumentNullException(nameof(curModel));
+            var countItems = curModel.ShopIceCreams.Select(x => x.Value.Item2).Sum();
+            if (curModel.MaxCapacity - countItems >= count)
+            {
+                if (curModel.ShopIceCreams.TryGetValue(iceCream.Id, out var sameDocument))
+                {
+                    curModel.ShopIceCreams[iceCream.Id] = (iceCream, sameDocument.Item2 + count);
+                    _logger.LogInformation("Same iceCream found by supply. Added {0} of {1} in {2} shop", count, iceCream.IceCreamName, curModel.ShopName);
+                }
+                else
+                {
+                    curModel.ShopIceCreams[iceCream.Id] = (iceCream, count);
+                    _logger.LogInformation("New iceCream added by supply. Added {0} of {1} in {2} shop", count, iceCream.IceCreamName, curModel.ShopName);
+                }
+                _shopStorage.Update(new()
+                {
+                    Id = curModel.Id,
+                    ShopName = curModel.ShopName,
+                    Address = curModel.Address,
+                    DateOpen = curModel.DateOpen,
+                    ShopIceCreams = curModel.ShopIceCreams,
+                    MaxCapacity = curModel.MaxCapacity
+                });
+            }
+            else
+            {
+                _logger.LogWarning("Required shop is overflowed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool MakeSell(IIceCreamModel iceCream, int count)
+        {
+            return _shopStorage.SellIceCreams(iceCream, count);
+        }
+
+        public ShopViewModel ReadElement(ShopSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. ShopName:{ShopName}.Id:{ Id}", model.Name, model.Id);
+            var element = _shopStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(ShopBindingModel model)
+        {
+            CheckModel(model);
+            if (_shopStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ShopBindingModel model)
+        {
+            CheckModel(model);
+            if (_shopStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(ShopBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_shopStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ShopBindingModel model, bool withParams =
+true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                throw new ArgumentNullException("Нет названия магазина",
+               nameof(model.ShopName));
+            }
+            if (string.IsNullOrEmpty(model.Address))
+            {
+                throw new ArgumentNullException("Нет адресса магазина",
+               nameof(model.ShopName));
+            }
+            if(model.DateOpen == null)
+            {
+                throw new ArgumentNullException("Нет даты открытия магазина",
+               nameof(model.ShopName));
+            }
+            _logger.LogInformation("Shop. ShopName:{ShopName}.Address:{Address}. DateOpen:{DateOpen}. Id: { Id}", model.ShopName, model.Address, model.DateOpen, model.Id);
+            var element = _shopStorage.GetElement(new ShopSearchModel
+            {
+                Name = model.ShopName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Магазин с таким названием уже есть");
+            }
+        }
+
+    }
+}

IceCreamShop/IceCreamShopContracts/BindingModels/ShopBindingModel.cs

@@ -0,0 +1,19 @@
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopContracts.BindingModels
+{
+    public class ShopBindingModel : IShopModel
+    {
+        public int Id { get; set; }
+        public string ShopName { get; set; }
+        public string Address { get; set; }
+        public DateTime DateOpen { get; set; }
+        public int MaxCapacity { get; set; }
+        public Dictionary<int, (IIceCreamModel, int)> ShopIceCreams { get; set; } = new();
+    }
+}

IceCreamShop/IceCreamShopContracts/BusinessLogicsContracts/IShopLogic.cs

@@ -0,0 +1,23 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopContracts.BusinessLogicsContracts
+{
+    public interface IShopLogic
+    {
+        List<ShopViewModel>? ReadList(ShopSearchModel? model);
+        ShopViewModel? ReadElement(ShopSearchModel model);
+        bool Create(ShopBindingModel model);
+        bool Update(ShopBindingModel model);
+        bool Delete(ShopBindingModel model);
+        bool MakeSupply(ShopSearchModel model, IIceCreamModel iceCream, int count);
+        bool MakeSell(IIceCreamModel iceCream, int count);
+    }
+}

IceCreamShop/IceCreamShopContracts/SearchModels/ShopSearchModel.cs

@@ -0,0 +1,15 @@
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopContracts.SearchModels
+{
+    public class ShopSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Name { get; set; }
+    }
+}

IceCreamShop/IceCreamShopContracts/StoragesContracts/IShopStorage.cs

@@ -0,0 +1,23 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopContracts.StoragesContracts
+{
+    public interface IShopStorage
+    {
+        List<ShopViewModel> GetFullList();
+        List<ShopViewModel> GetFilteredList(ShopSearchModel model);
+        ShopViewModel? GetElement(ShopSearchModel model);
+        ShopViewModel? Insert(ShopBindingModel model);
+        ShopViewModel? Update(ShopBindingModel model);
+        ShopViewModel? Delete(ShopBindingModel model);
+        public bool SellIceCreams(IIceCreamModel model, int count);
+    }
+}

IceCreamShop/IceCreamShopContracts/ViewModels/ShopViewModel.cs

@@ -0,0 +1,24 @@
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopContracts.ViewModels
+{
+    public class ShopViewModel : IShopModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название магазина")]
+        public string ShopName { get; set; }
+        [DisplayName("Адрес магазина")]
+        public string Address { get; set; }
+        [DisplayName("Дата открытия")]
+        public DateTime DateOpen { get; set; }
+        [DisplayName("Вместимость")]
+        public int MaxCapacity { get; set; }
+        public Dictionary<int, (IIceCreamModel, int)> ShopIceCreams { get; set; } = new();
+    }
+}

IceCreamShop/IceCreamShopDataModels/IShopModel.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopDataModels.Models
+{
+    public interface IShopModel : IId
+    {
+        string ShopName { get; }
+        string Address { get; }
+        DateTime DateOpen { get; }
+        Dictionary<int, (IIceCreamModel, int)> ShopIceCreams { get; }
+        int MaxCapacity { get; }
+    }
+}

IceCreamShop/IceCreamShopDatabaseImplement/IceCreamShopDataBase.cs

@@ -16,7 +16,7 @@ optionsBuilder)
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=IceCreamShopDatabase;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=IceCreamShopHardDatabase;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
             }
             base.OnConfiguring(optionsBuilder);
         }
@@ -24,6 +24,8 @@ optionsBuilder)
         public virtual DbSet<IceCream> IceCreams { set; get; }
         public virtual DbSet<IceCreamComponent> IceCreamComponents { set; get; }
         public virtual DbSet<Order> Orders { set; get; }
+        public virtual DbSet<Shop> Shops { set; get; }
+        public virtual DbSet<ShopIceCream> ShopIceCreams { set; get; }
 
     }
 }

IceCreamShop/IceCreamShopDatabaseImplement/Implements/OrderStorage.cs

@@ -73,7 +73,7 @@ namespace IceCreamShopDatabaseImplement.Implements
         public OrderViewModel? Delete(OrderBindingModel model)
         {
             using var context = new IceCreamShopDataBase();
-            var element = context.Orders.FirstOrDefault(rec => rec.Id ==
+            var element = context.Orders.Include(x => x.IceCream).FirstOrDefault(rec => rec.Id ==
            model.Id);
             if (element != null)
             {

IceCreamShop/IceCreamShopDatabaseImplement/Implements/ShopStorage.cs

@@ -0,0 +1,153 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.StoragesContracts;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDatabaseImplement.Models;
+using IceCreamShopDataModels.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopDatabaseImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            using var context = new IceCreamShopDataBase();
+            var element = context.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                context.Shops.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new IceCreamShopDataBase();
+            return context.Shops
+                .Include(x => x.IceCreams)
+                .ThenInclude(x => x.IceCream)
+                .FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
+                ?.GetViewModel;
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return new();
+            }
+            using var context = new IceCreamShopDataBase();
+            return context.Shops
+                .Include(x => x.IceCreams)
+                .ThenInclude(x => x.IceCream)
+                .Select(x => x.GetViewModel)
+                .Where(x => x.ShopName.Contains(model.Name ?? string.Empty))
+                .ToList();
+        }
+
+        public List<ShopViewModel> GetFullList()
+        {
+            using var context = new IceCreamShopDataBase();
+            return context.Shops
+            .Include(x => x.IceCreams)
+                .ThenInclude(x => x.IceCream)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            using var context = new IceCreamShopDataBase();
+            try
+            {
+                var newShop = Shop.Create(context, model);
+                if (newShop == null)
+                {
+                    return null;
+                }
+                if (context.Shops.Any(x => x.ShopName == newShop.ShopName))
+                {
+                    throw new Exception("Не должно быть два магазина с одним названием");
+                }
+                context.Shops.Add(newShop);
+                context.SaveChanges();
+                return newShop.GetViewModel;
+            }
+            catch
+            {
+                throw;
+            }
+        }
+
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            using var context = new IceCreamShopDataBase();
+            var shop = context.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (shop == null)
+            {
+                return null;
+            }
+            try
+            {
+                if (context.Shops.Any(x => (x.ShopName == model.ShopName && x.Id != model.Id)))
+                {
+                    throw new Exception("Не должно быть два магазина с одним названием");
+                }
+                shop.Update(model);
+                shop.UpdateIceCreams(context, model);
+                context.SaveChanges();
+                return shop.GetViewModel;
+            }
+            catch
+            {
+                throw;
+            }
+        }
+        public bool SellIceCreams(IIceCreamModel model, int count)
+        {
+            if (model == null)
+                return false;
+            using var context = new IceCreamShopDataBase();
+            using var transaction = context.Database.BeginTransaction();
+            List<ShopIceCream> lst = new List<ShopIceCream>();
+            foreach(var el in context.ShopIceCreams.Where(x => x.IceCreamId == model.Id))
+            {
+                int dif = count;
+                if (el.Count < dif)
+                    dif = el.Count;
+                el.Count -= dif;
+                count -= dif;
+                if(el.Count == 0)
+                {
+                    lst.Add(el);
+                }
+                if (count == 0)
+                    break;
+            }
+            if (count > 0)
+            {
+                transaction.Rollback();
+                return false;
+            }
+            foreach(var el in lst)
+            {
+                context.ShopIceCreams.Remove(el);
+            }
+            context.SaveChanges();
+            transaction.Commit();
+            return true;
+        }
+    }
+}

IceCreamShop/IceCreamShopDatabaseImplement/Migrations/20240324074257_InitialCreate.Designer.cs

@@ -12,7 +12,11 @@ using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 namespace IceCreamShopDatabaseImplement.Migrations
 {
     [DbContext(typeof(IceCreamShopDataBase))]
+<<<<<<<< HEAD:IceCreamShop/IceCreamShopDatabaseImplement/Migrations/20240324075315_InitialCreate.Designer.cs
     [Migration("20240324075315_InitialCreate")]
+========
+    [Migration("20240324074257_InitialCreate")]
+>>>>>>>> Lab3_Hard:IceCreamShop/IceCreamShopDatabaseImplement/Migrations/20240324074257_InitialCreate.Designer.cs
     partial class InitialCreate
     {
         /// <inheritdoc />
@@ -124,6 +128,59 @@ namespace IceCreamShopDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpen")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCapacity")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.ShopIceCream", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("IceCreamId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("IceCreamId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopIceCreams");
+                });
+
             modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.IceCreamComponent", b =>
                 {
                     b.HasOne("IceCreamShopDatabaseImplement.Models.Component", "Component")
@@ -154,6 +211,25 @@ namespace IceCreamShopDatabaseImplement.Migrations
                     b.Navigation("IceCream");
                 });
 
+            modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.ShopIceCream", b =>
+                {
+                    b.HasOne("IceCreamShopDatabaseImplement.Models.IceCream", "IceCream")
+                        .WithMany("ShopIceCreams")
+                        .HasForeignKey("IceCreamId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("IceCreamShopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("IceCreams")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("IceCream");
+
+                    b.Navigation("Shop");
+                });
+
             modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Component", b =>
                 {
                     b.Navigation("IceCreamComponents");
@@ -164,6 +240,13 @@ namespace IceCreamShopDatabaseImplement.Migrations
                     b.Navigation("Components");
 
                     b.Navigation("Orders");
+
+                    b.Navigation("ShopIceCreams");
+                });
+
+            modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("IceCreams");
                 });
 #pragma warning restore 612, 618
         }

IceCreamShop/IceCreamShopDatabaseImplement/Migrations/20240324074257_InitialCreate.cs

@@ -39,6 +39,22 @@ namespace IceCreamShopDatabaseImplement.Migrations
                     table.PrimaryKey("PK_IceCreams", x => x.Id);
                 });
 
+            migrationBuilder.CreateTable(
+                name: "Shops",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ShopName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Address = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    DateOpen = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    MaxCapacity = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
             migrationBuilder.CreateTable(
                 name: "IceCreamComponents",
                 columns: table => new
@@ -90,6 +106,33 @@ namespace IceCreamShopDatabaseImplement.Migrations
                         onDelete: ReferentialAction.Cascade);
                 });
 
+            migrationBuilder.CreateTable(
+                name: "ShopIceCreams",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    IceCreamId = table.Column<int>(type: "int", nullable: false),
+                    ShopId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopIceCreams", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopIceCreams_IceCreams_IceCreamId",
+                        column: x => x.IceCreamId,
+                        principalTable: "IceCreams",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopIceCreams_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
             migrationBuilder.CreateIndex(
                 name: "IX_IceCreamComponents_ComponentId",
                 table: "IceCreamComponents",
@@ -104,6 +147,16 @@ namespace IceCreamShopDatabaseImplement.Migrations
                 name: "IX_Orders_IceCreamId",
                 table: "Orders",
                 column: "IceCreamId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopIceCreams_IceCreamId",
+                table: "ShopIceCreams",
+                column: "IceCreamId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopIceCreams_ShopId",
+                table: "ShopIceCreams",
+                column: "ShopId");
         }
 
         /// <inheritdoc />
@@ -115,11 +168,17 @@ namespace IceCreamShopDatabaseImplement.Migrations
             migrationBuilder.DropTable(
                 name: "Orders");
 
+            migrationBuilder.DropTable(
+                name: "ShopIceCreams");
+
             migrationBuilder.DropTable(
                 name: "Components");
 
             migrationBuilder.DropTable(
                 name: "IceCreams");
+
+            migrationBuilder.DropTable(
+                name: "Shops");
         }
     }
 }

IceCreamShop/IceCreamShopDatabaseImplement/Migrations/IceCreamShopDataBaseModelSnapshot.cs

@@ -121,6 +121,59 @@ namespace IceCreamShopDatabaseImplement.Migrations
                     b.ToTable("Orders");
                 });
 
+            modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Address")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("DateOpen")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("MaxCapacity")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.ShopIceCream", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("IceCreamId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("IceCreamId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopIceCreams");
+                });
+
             modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.IceCreamComponent", b =>
                 {
                     b.HasOne("IceCreamShopDatabaseImplement.Models.Component", "Component")
@@ -151,6 +204,25 @@ namespace IceCreamShopDatabaseImplement.Migrations
                     b.Navigation("IceCream");
                 });
 
+            modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.ShopIceCream", b =>
+                {
+                    b.HasOne("IceCreamShopDatabaseImplement.Models.IceCream", "IceCream")
+                        .WithMany("ShopIceCreams")
+                        .HasForeignKey("IceCreamId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("IceCreamShopDatabaseImplement.Models.Shop", "Shop")
+                        .WithMany("IceCreams")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("IceCream");
+
+                    b.Navigation("Shop");
+                });
+
             modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Component", b =>
                 {
                     b.Navigation("IceCreamComponents");
@@ -161,6 +233,13 @@ namespace IceCreamShopDatabaseImplement.Migrations
                     b.Navigation("Components");
 
                     b.Navigation("Orders");
+
+                    b.Navigation("ShopIceCreams");
+                });
+
+            modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Shop", b =>
+                {
+                    b.Navigation("IceCreams");
                 });
 #pragma warning restore 612, 618
         }

IceCreamShop/IceCreamShopDatabaseImplement/Models/IceCream.cs

@@ -38,6 +38,8 @@ namespace IceCreamShopDatabaseImplement.Models
         public virtual List<IceCreamComponent> Components { get; set; } = new();
         [ForeignKey("IceCreamId")]
         public virtual List<Order> Orders { get; set; } = new();
+        [ForeignKey("IceCreamId")]
+        public virtual List<ShopIceCream> ShopIceCreams { get; set; } = new();
         public static IceCream Create(IceCreamShopDataBase context,
        IceCreamBindingModel model)
         {
@@ -71,7 +73,7 @@ namespace IceCreamShopDatabaseImplement.Models
         {
             var iceCreamComponents = context.IceCreamComponents.Where(rec =>
            rec.IceCreamId == model.Id).ToList();
-            if (iceCreamComponents != null && IceCreamComponents.Count > 0)
+            if (iceCreamComponents != null && iceCreamComponents.Count > 0)
             {
                 context.IceCreamComponents.RemoveRange(iceCreamComponents.Where(rec
 => !model.IceCreamComponents.ContainsKey(rec.ComponentId)));

IceCreamShop/IceCreamShopDatabaseImplement/Models/Shop.cs

@@ -0,0 +1,118 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopDatabaseImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ShopName { get; private set; }
+        [Required]
+        public string Address { get; private set; }
+        [Required]
+        public DateTime DateOpen { get; private set; }
+        [Required]
+        public int MaxCapacity { get; private set; }
+        private Dictionary<int, (IIceCreamModel, int)>? _shopIceCreams =
+       null;
+        [NotMapped]
+        public Dictionary<int, (IIceCreamModel, int)> ShopIceCreams
+        {
+            get
+            {
+                if (_shopIceCreams == null)
+                {
+                    _shopIceCreams = IceCreams
+                    .ToDictionary(x => x.IceCreamId, x =>
+                   (x.IceCream as IIceCreamModel, x.Count));
+                }
+                return _shopIceCreams;
+            }
+        }
+        [ForeignKey("ShopId")]
+        public virtual List<ShopIceCream> IceCreams { get; set; } = new();
+        public static Shop? Create(IceCreamShopDataBase context, ShopBindingModel model)
+        {
+            if (model == null)
+                return null;
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Address = model.Address,
+                DateOpen = model.DateOpen,
+                MaxCapacity = model.MaxCapacity,
+                IceCreams = model.ShopIceCreams.Select(x => new
+               ShopIceCream
+                {
+                    IceCream = context.IceCreams.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+
+        public void Update(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            Address = model.Address;
+            DateOpen = model.DateOpen;
+            MaxCapacity = model.MaxCapacity;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpen = DateOpen,
+            ShopIceCreams = ShopIceCreams, 
+            MaxCapacity = MaxCapacity
+        };
+
+        public void UpdateIceCreams(IceCreamShopDataBase context,
+       ShopBindingModel model)
+        {
+            var shopIceCreams = context.ShopIceCreams.Where(rec =>
+           rec.ShopId == model.Id).ToList();
+            if (shopIceCreams != null && shopIceCreams.Count > 0)
+            {
+                context.ShopIceCreams.RemoveRange(shopIceCreams.Where(rec
+=> !model.ShopIceCreams.ContainsKey(rec.ShopId)));
+
+                context.SaveChanges();
+                foreach (var updateIceCream in shopIceCreams)
+                {
+                    updateIceCream.Count =
+                   model.ShopIceCreams[updateIceCream.IceCreamId].Item2;
+                    model.ShopIceCreams.Remove(updateIceCream.IceCreamId);
+                }
+                context.SaveChanges();
+            }
+            var shop = context.Shops.First(x => x.Id == Id);
+            foreach (var pc in model.ShopIceCreams)
+            {
+                context.ShopIceCreams.Add(new ShopIceCream
+                {
+                    Shop = shop,
+                    IceCream = context.IceCreams.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _shopIceCreams = null;
+        }
+    }
+}

IceCreamShop/IceCreamShopDatabaseImplement/Models/ShopIceCream.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopDatabaseImplement.Models
+{
+    public class ShopIceCream
+    {
+        public int Id { get; set; }
+        [Required]
+        public int IceCreamId { get; set; }
+        [Required]
+        public int ShopId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Shop Shop { get; set; } = new();
+        public virtual IceCream IceCream { get; set; } = new();
+    }
+}

IceCreamShop/IceCreamShopFileImplement/DataFileSingleton.cs

@@ -14,9 +14,11 @@ namespace IceCreamShopFileImplement
         private readonly string ComponentFileName = "Component.xml";
         private readonly string OrderFileName = "Order.xml";
         private readonly string IceCreamFileName = "IceCream.xml";
+        private readonly string ShopFileName = "Shops.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()
         {
@@ -33,6 +35,8 @@ namespace IceCreamShopFileImplement
        "IceCreams", x => x.GetXElement);
         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 =>
@@ -41,6 +45,8 @@ namespace IceCreamShopFileImplement
            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/IceCreamStorage.cs

@@ -2,6 +2,7 @@
 using IceCreamShopContracts.SearchModels;
 using IceCreamShopContracts.StoragesContracts;
 using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
 using IceCreamShopFileImplement.Models;
 using System;
 using System.Collections.Generic;
@@ -91,5 +92,6 @@ model)
             return null;
         }
 
+
     }
 }

IceCreamShop/IceCreamShopFileImplement/Implements/OrderStorage.cs

@@ -90,14 +90,10 @@ model)
         {
             if (model == null)
                 return null;
-            foreach (var iceCream in source.IceCreams)
+            var iceCream = source.IceCreams.FirstOrDefault(x => (x.Id == model.IceCreamId));
-            {
+            if (iceCream == null)
-                if (iceCream.Id == model.IceCreamId)
+                return model;
-                {
             model.IceCreamName = iceCream.IceCreamName;
-                    break;
-                }
-            }
             return model;
         }
 

IceCreamShop/IceCreamShopFileImplement/Implements/ShopStorage.cs

@@ -0,0 +1,140 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.StoragesContracts;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using IceCreamShopFileImplement;
+using IceCreamShopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+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.Name))
+            {
+                return new();
+            }
+            return _source.Shops
+ .Where(x => x.ShopName.Contains(model.Name))
+.Select(x => x.GetViewModel)
+.ToList(); ;
+        }
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return _source.Shops
+ .FirstOrDefault(x =>
+(!string.IsNullOrEmpty(model.Name) && x.ShopName ==
+model.Name) ||
+ (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 component = _source.Shops.FirstOrDefault(x => x.Id ==
+model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            _source.SaveShops();
+            return component.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 CheckAvailability(int iceCreamId, int count)
+        {
+            int minus = _source.Shops.Select(x => x.ShopIceCreams.Select(y => (y.Value.Item1.Id == iceCreamId ? y.Value.Item2 : 0)).Sum()).Sum();
+            count -= minus;
+            return count <= 0;
+        }
+
+        public bool SellIceCreams(IIceCreamModel model, int count)
+        {
+            var iceCream = _source.IceCreams.FirstOrDefault(x => x.Id == model.Id);
+
+            if (iceCream == null || !CheckAvailability(iceCream.Id, count))
+            {
+                return false;
+            }
+
+            for (int i = 0; i < _source.Shops.Count; i++)
+            {
+                var shop = _source.Shops[i];
+                var icecreams = shop.ShopIceCreams;
+
+                foreach (var icecream in icecreams.Where(x => x.Value.Item1.Id == iceCream.Id))
+                {
+                    var min = Math.Min(icecream.Value.Item2, count);
+                    icecreams[icecream.Value.Item1.Id] = (icecream.Value.Item1, icecream.Value.Item2 - min);
+                    count -= min;
+
+                    if (count <= 0)
+                    {
+                        break;
+                    }
+                }
+
+                shop.Update(new ShopBindingModel
+                {
+                    Id = shop.Id,
+                    ShopName = shop.ShopName,
+                    Address = shop.Address,
+                    DateOpen = shop.DateOpen,
+                    MaxCapacity = shop.MaxCapacity,
+                    ShopIceCreams = icecreams
+                });
+            }
+            _source.SaveShops();
+            return true;
+        }
+
+    }
+}

IceCreamShop/IceCreamShopFileImplement/Models/Shop.cs

@@ -0,0 +1,118 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using IceCreamShopFileImplement;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Threading.Tasks.Dataflow;
+using System.Xml.Linq;
+
+namespace IceCreamShopFileImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; private set; }
+        public string ShopName { get; private set; }
+        public string Address { get; private set; }
+        public DateTime DateOpen { 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 MaxCapacity { 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,
+                DateOpen = model.DateOpen,
+                MaxCapacity = model.MaxCapacity,
+                IceCreams = model.ShopIceCreams.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+
+        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,
+                MaxCapacity = Convert.ToInt32(element.Element("MaxCapacity")!.Value),
+                DateOpen = Convert.ToDateTime(element.Element("DateOpen")!.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;
+            DateOpen = model.DateOpen;
+            MaxCapacity = model.MaxCapacity;
+            if (model.ShopIceCreams.Count > 0)
+            {
+                IceCreams = model.ShopIceCreams.ToDictionary(x => x.Key, x => x.Value.Item2);
+                _shopIceCreams = null;
+            }
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpen = DateOpen,
+            MaxCapacity = MaxCapacity,
+            ShopIceCreams = ShopIceCreams
+        };
+
+        public XElement GetXElement => new("Shop",
+             new XAttribute("Id", Id),
+             new XElement("ShopName", ShopName),
+             new XElement("Address", Address),
+             new XElement("DateOpen", DateOpen),
+             new XElement("MaxCapacity", MaxCapacity),
+             new XElement("ShopIceCreams", IceCreams
+                 .Select(x => new XElement("ShopIceCream",
+                     new XElement("Key", x.Key),
+                     new XElement("Value", x.Value))
+                 ).ToArray()));
+    }
+}

IceCreamShop/IceCreamShopListImplement/DataListSingleton.cs

@@ -13,11 +13,13 @@ namespace IceCreamShopListImplement
         public List<Component> Components { get; set; }
         public List<Order> Orders { get; set; }
         public List<IceCream> IceCreams { get; set; }
+        public List<Shop> Shops { get; set; }
         private DataListSingleton()
         {
             Components = new List<Component>();
             Orders = new List<Order>();
             IceCreams = new List<IceCream>();
+            Shops = new List<Shop>();
         }
         public static DataListSingleton GetInstance()
         {

IceCreamShop/IceCreamShopListImplement/Implements/ShopStorage.cs

@@ -0,0 +1,156 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.SearchModels;
+using IceCreamShopContracts.StoragesContracts;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using IceCreamShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace IceCreamShopListImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        private readonly DataListSingleton _source;
+        public ShopStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<ShopViewModel> GetFullList()
+        {
+            var result = new List<ShopViewModel>();
+            foreach (var shop in _source.Shops)
+            {
+                result.Add(shop.GetViewModel);
+            }
+            return result;
+        }
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel
+       model)
+        {
+            var result = new List<ShopViewModel>();
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                return result;
+            }
+            foreach (var shop in _source.Shops)
+            {
+                if (shop.ShopName.Contains(model.Name))
+                {
+                    result.Add(shop.GetViewModel);
+                }
+            }
+            return result;
+        }
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var shop in _source.Shops)
+            {
+                if ((!string.IsNullOrEmpty(model.Name) &&
+               shop.ShopName == model.Name) ||
+                (model.Id.HasValue && shop.Id == model.Id))
+                {
+                    return shop.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var shop in _source.Shops)
+            {
+                if (model.Id <= shop.Id)
+                {
+                    model.Id = shop.Id + 1;
+                }
+            }
+            var newShop = Shop.Create(model);
+            if (newShop == null)
+            {
+                return null;
+            }
+            _source.Shops.Add(newShop);
+            return newShop.GetViewModel;
+        }
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            foreach (var shop in _source.Shops)
+            {
+                if (shop.Id == model.Id)
+                {
+                    shop.Update(model);
+                    return shop.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            for (int i = 0; i < _source.Shops.Count; ++i)
+            {
+                if (_source.Shops[i].Id == model.Id)
+                {
+                    var element = _source.Shops[i];
+                    _source.Shops.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+
+        public bool CheckAvailability(int iceCreamId, int count)
+        {
+            int minus = _source.Shops.Select(x => x.ShopIceCreams.Select(y => (y.Value.Item1.Id == iceCreamId ? y.Value.Item2 : 0)).Sum()).Sum();
+            count -= minus;
+            return count <= 0;
+        }
+
+        public bool SellIceCreams(IIceCreamModel model, int count)
+        {
+            var iceCream = _source.IceCreams.FirstOrDefault(x => x.Id == model.Id);
+
+            if (iceCream == null || !CheckAvailability(iceCream.Id, count))
+            {
+                return false;
+            }
+
+            for (int i = 0; i < _source.Shops.Count; i++)
+            {
+                var shop = _source.Shops[i];
+                var icecreams = shop.ShopIceCreams;
+
+                foreach (var icecream in icecreams.Where(x => x.Value.Item1.Id == iceCream.Id))
+                {
+                    var min = Math.Min(icecream.Value.Item2, count);
+                    icecreams[icecream.Value.Item1.Id] = (icecream.Value.Item1, icecream.Value.Item2 - min);
+                    count -= min;
+
+                    if (count <= 0)
+                    {
+                        break;
+                    }
+                }
+
+                shop.Update(new ShopBindingModel
+                {
+                    Id = shop.Id,
+                    ShopName = shop.ShopName,
+                    Address = shop.Address,
+                    DateOpen = shop.DateOpen,
+                    MaxCapacity = shop.MaxCapacity,
+                    ShopIceCreams = icecreams
+                });
+            }
+            return true;
+        }
+
+    }
+}

IceCreamShop/IceCreamShopListImplement/Models/Order.cs

@@ -46,12 +46,7 @@ namespace IceCreamShopListImplement.Models
             {
                 return;
             }
-            Id = model.Id;
-            IceCreamId = model.IceCreamId;
-            Count = model.Count;
-            Sum = model.Sum;
             Status = model.Status;
-            DateCreate = model.DateCreate;
             DateImplement = model.DateImplement;
         }
         public OrderViewModel GetViewModel => new()

IceCreamShop/IceCreamShopListImplement/Models/Shop.cs

@@ -0,0 +1,57 @@
+using IceCreamShopContracts.BindingModels;
+using IceCreamShopContracts.ViewModels;
+using IceCreamShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace IceCreamShopListImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; private set; }
+        public string ShopName { get; private set; }
+        public string Address { get; private set; }
+        public DateTime DateOpen { get; private set; }
+        public int MaxCapacity { get; private set; }
+        public Dictionary<int, (IIceCreamModel, int)> ShopIceCreams { get; private set; } = new();
+
+        public static Shop? Create (ShopBindingModel model)
+        {
+            if (model == null)
+                return null;
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Address = model.Address,
+                DateOpen = model.DateOpen,
+                ShopIceCreams = new()
+            };
+        }
+
+        public void Update(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            Address = model.Address;
+            DateOpen = model.DateOpen;
+            ShopIceCreams = model.ShopIceCreams;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Address = Address,
+            DateOpen = DateOpen,
+            ShopIceCreams = ShopIceCreams
+        };
+    }
+}