Refactor Order Management

Order.Management/CommonConst.cs

@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+
+namespace Order.Management
+{
+    class CommonConst
+    {
+        public const decimal SquarePrice = 1;
+        public const decimal TrianglePrice = 2;
+        public const decimal CirclePrice = 3;
+        public const decimal RedAdditionalCharge = 1;
+
+        public  static List<Shape> ShapeList = new List<Shape>()
+        {
+            Shape.Square,
+            Shape.Triangle,
+            Shape.Circle,
+        };
+
+        public static List<Color> ColorList = new List<Color>()
+        { 
+            Color.Red,
+            Color.Blue,
+            Color.Yellow
+        };
+    }
+}

Order.Management/Order/Order.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Order.Management
+{
+    public class Order
+    {
+        public string CustomerName { get; set; }
+        public string Address { get; set; }
+        public DateTime DueDate { get; set; }
+        public int OrderNumber { get; set; }
+        public List<ToyInfo> ToyInfos { get; set; }
+
+        public int GetCountByColor(Color color)
+        {
+            return ToyInfos.Where(item => item.Color.Equals(color)).ToList().Sum(item => item.Quantity);
+        }
+
+        public int GetCountByShape(Enum shape)
+        {
+            return ToyInfos.Where(item => item.Shape.Equals(shape)).ToList().Sum(item => item.Quantity);
+        }
+
+        public int GetCountByShapeAndColor(Enum shape, Color color)
+        {
+            return ToyInfos.Where(item => item.Shape.Equals(shape) && item.Color.Equals(color)).ToList().Sum(item => item.Quantity);
+        }
+
+        public decimal GetShapePrice(Enum shape)
+        {
+            switch (shape)
+            {
+                case Shape.Triangle:
+                    return CommonConst.TrianglePrice;
+                case Shape.Circle:
+                    return CommonConst.CirclePrice;
+                case Shape.Square:
+                default:
+                    return CommonConst.SquarePrice;
+            }
+        }
+
+        public override string ToString()
+        {
+            return $"\nName: {CustomerName} Address: {Address} Due Date: {DueDate.ToShortDateString()} Order #: {OrderNumber}";
+        }
+    }
+}

Order.Management/Order/ToyInfo.cs

@@ -0,0 +1,23 @@
+namespace Order.Management
+{
+    public class ToyInfo
+    {
+        public Shape Shape { get; set; }
+        public Color Color { get; set; }
+        public int Quantity { get; set; }
+    }
+
+    public enum Shape
+    {
+        Square,
+        Triangle,
+        Circle
+    }
+
+    public enum Color
+    {
+        Red,
+        Blue,
+        Yellow
+    }
+}