Edwin_ThoughtWorks

Assignment

TaxCalculation.Console/App.config

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+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
+    </startup>
+</configuration>

TaxCalculation.Console/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using TaxCalculation.Domain;
+using TaxCalculation.Domain.Enums;
+using TaxCalculation.Domain.Factories;
+using TaxCalculation.Domain.Interfaces;
+using TaxCalculation.Domain.Repositories;
+
+
+namespace TaxCalculation.ConsoleApp
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            IOrdersRepository repository = new OrdersRepository();
+            //
+            var orders = repository.ReadOrders("SalesData.txt");
+
+            foreach (var order in orders)
+            {
+                System.Console.WriteLine(order.OrderNumber);
+                foreach(var lineItem in order.LineItems)
+                {
+                    System.Console.WriteLine(lineItem.GetQuantity() + " " + lineItem.Name + " " + decimal.Round(lineItem.GetTotal(),2));
+                }
+                Console.WriteLine("Sales Taxes: " + order.GetOrderLineTax());
+                Console.WriteLine("Total: " + order.GetOrderTotal());
+                Console.WriteLine(Environment.NewLine);
+            }
+            Console.ReadLine();
+        }
+
+
+    }
+}

TaxCalculation.Console/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("TaxCalculation.Console")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("TaxCalculation.Console")]
+[assembly: AssemblyCopyright("Copyright ©  2013")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("214b66b9-646e-45fb-913c-c28e725cfca9")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

TaxCalculation.Console/TaxCalculation.ConsoleApp.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{5D8F40B3-BAF4-4522-8A7D-EA3D8D6E89F5}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>TaxCalculation.Console</RootNamespace>
+    <AssemblyName>TaxCalculation.Console</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\TaxCalculation.Domain\TaxCalculation.Domain.csproj">
+      <Project>{690771c4-1c1d-425c-8ddb-5cfad55c3418}</Project>
+      <Name>TaxCalculation.Domain</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

TaxCalculation.Console/bin/Debug/SalesData.txt

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+#Quantity,Product,Price,ItemType
+Order 1
+1,book,12.49,Exempt
+1,music CD,14.99,Basic
+1,chocolate bar,0.85,Exempt
+Order 2
+1,imported box of chocolates,10.00,Import
+1,imported bottle of perfume,47.50,BasicImport
+Order 3
+1,imported bottle of perfume,27.99,BasicImport
+1,bottle of perfume,18.99,Basic
+1,packet of headache pills,9.75,Exempt
+1,imported box of chocolates,11.25,Import

TaxCalculation.Console/bin/Debug/TaxCalculation.Console.exe.config

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+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
+    </startup>
+</configuration>

TaxCalculation.Console/obj/Debug/TaxCalculation.Console.csproj.FileListAbsolute.txt

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+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\obj\Debug\TaxCalculation.Console.csprojResolveAssemblyReference.cache
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Console.exe.config
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Console.exe
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Console.pdb
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Domain.dll
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Domain.pdb
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\obj\Debug\TaxCalculation.Console.exe
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\obj\Debug\TaxCalculation.Console.pdb

TaxCalculation.Console/obj/Debug/TaxCalculation.ConsoleApp.csproj.FileListAbsolute.txt

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+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Console.exe.config
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Console.exe
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Console.pdb
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Domain.dll
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\bin\Debug\TaxCalculation.Domain.pdb
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\obj\Debug\TaxCalculation.Console.exe
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\obj\Debug\TaxCalculation.Console.pdb
+C:\Edwin\ThoughtWorks\TaxCalculator\TaxCalculation.Console\obj\Debug\TaxCalculation.ConsoleApp.csprojResolveAssemblyReference.cache

TaxCalculation.Domain/Enums/ItemType.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TaxCalculation.Domain.Enums
+{
+    [Flags] 
+    public enum ItemType
+    {
+        Exempt = 0,
+        Basic = 1,
+        Import = 2
+    }
+}

TaxCalculation.Domain/Factories/LineItemFactory.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using TaxCalculation.Domain.Enums;
+using TaxCalculation.Domain.Interfaces;
+
+namespace TaxCalculation.Domain.Factories
+{
+    public static class LineItemFactory
+    {
+        private static readonly Rounding ROUNDING = new Rounding(0.05M);
+        private static readonly ITax BASICTAX = new Tax(0.1M, ROUNDING);
+        private static readonly ITax IMPORTTAX = new Tax(0.05M, ROUNDING);
+        private static readonly ITax EXEMPTTAX = new Tax(0.0M, ROUNDING);
+
+        private static readonly Dictionary<ItemType, ITax> itemTaxLookup = new Dictionary<ItemType, ITax>()
+        {
+            { ItemType.Basic, BASICTAX },
+            { ItemType.Import, IMPORTTAX },
+            { ItemType.Exempt, EXEMPTTAX }
+        };
+
+        public static ILineItem GetLineItem(string name, decimal price, int quantity, ItemType itemType)
+        {
+            ILineItem item = new LineItem(name, price, quantity);
+
+            foreach (int flag in Enum.GetValues(typeof(ItemType)))
+            {
+                if ((flag & (int)itemType) == flag)
+                {
+                    item = (ILineItem)Activator.CreateInstance(typeof(LineItemTaxDecorator), new object[] { item, itemTaxLookup[(ItemType)flag] });
+                }
+            }
+
+            return item;
+        }
+
+        public static ILineItem GetLineItem(string name, decimal price, int quantity)
+        {
+            return new LineItem(name, price, quantity);
+        }
+    }
+}

TaxCalculation.Domain/Interfaces/ILineItem.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TaxCalculation.Domain.Interfaces
+{
+    public interface ILineItem
+    {
+        string Name { get; }
+        decimal GetPrice();
+        int GetQuantity();
+        decimal GetLineTax();
+        decimal GetTotal();
+    }
+}

TaxCalculation.Domain/Interfaces/IOrdersRepository.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TaxCalculation.Domain.Interfaces
+{
+    public interface IOrdersRepository
+    {
+        List<Order> ReadOrders(string textFilePath);
+    }
+}

TaxCalculation.Domain/Interfaces/IRounding.cs

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+using System;
+namespace TaxCalculation.Domain.Interfaces
+{
+    public interface IRounding
+    {
+        decimal Round(decimal valToRound);
+    }
+}

TaxCalculation.Domain/Interfaces/ITax.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TaxCalculation.Domain.Interfaces
+{
+    public interface ITax
+    {
+        IRounding Rounding { get; }
+        decimal Rate { get; }
+        decimal CalculateTax(decimal itemPrice);
+    }
+}

TaxCalculation.Domain/LineItem.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using TaxCalculation.Domain.Interfaces;
+
+namespace TaxCalculation.Domain
+{
+    public class LineItem : ILineItem
+    {
+        private string _name;
+        private decimal _price;
+        private int _quantity;
+
+        public LineItem(string name, decimal price, int quantity)
+        {
+            #region Parameter Checking
+            if (string.IsNullOrWhiteSpace(name))
+                throw new ArgumentException("name");
+            if(price < 0)
+                throw new ArgumentException("price");
+            #endregion
+
+            this._name = name;
+            this._price = price;
+            this._quantity = quantity;
+
+        }
+
+        #region ILineItem Members
+
+        public string Name
+        {
+            get { return this._name; }
+        }
+
+        public decimal GetPrice()
+        {
+            return this._price;
+        }
+
+        public int GetQuantity()
+        {
+            return this._quantity;
+        }
+
+        public decimal GetLineTax()
+        {
+            return 0.0M;
+        }
+
+        public decimal GetTotal()
+        {
+            return this.GetPrice() + this.GetLineTax();
+        }
+
+        #endregion
+    }
+}