Tech test solution

TechTest/AnyCompany.Tests/AnyCompany.Tests.csproj

@@ -1,11 +1,11 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" 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>cd5d577e-bdc9-4dfc-ac6a-b1da474995f3</ProjectGuid>
-    <OutputType>Library</OutputType>
+    <ProjectGuid>{CD5D577E-BDC9-4DFC-AC6A-B1DA474995F3}</ProjectGuid>
+    <OutputType>Exe</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>AnyCompany.Tests</RootNamespace>
     <AssemblyName>AnyCompany.Tests</AssemblyName>
@@ -29,25 +29,28 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject />
+  </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.Net.Http"/>
-
-    <Reference Include="System.Xml"/>
+    <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.Net.Http" />
+    <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="Class1.cs" />
+    <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\AnyCompany\AnyCompany.csproj">
+      <Project>{c7e15594-7d8f-4c18-9dd7-14f3fbb1572d}</Project>
+      <Name>AnyCompany</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
- </Project>
+</Project>

TechTest/AnyCompany.Tests/Program.cs

@@ -0,0 +1,27 @@
+using AnyCompany.Model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AnyCompany.Tests
+{
+    public class Program
+    {
+        static void Main(string[] args)
+        {
+            //Orderservice should be injected using a dependency injection container(e.g. Unity)
+            IOrderService orderService = new OrderService();
+
+            List<Customer> customers = orderService.LoadAllCustomersAndOrders();
+
+            Order order = new Order
+            {
+                Amount = 22d
+            };
+
+            orderService.PlaceOrder(order, 1);
+        }
+    }
+}

TechTest/AnyCompany/AnyCompany.csproj

@@ -31,6 +31,7 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
+    <Reference Include="System.Configuration" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
@@ -40,11 +41,16 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="Customer.cs" />
-    <Compile Include="CustomerRepository.cs" />
-    <Compile Include="Order.cs" />
-    <Compile Include="OrderRepository.cs" />
+    <Compile Include="IOrderService.cs" />
+    <Compile Include="Model\Customer.cs" />
+    <Compile Include="Persistence\CustomerRepository.cs" />
+    <Compile Include="Model\Order.cs" />
+    <Compile Include="Persistence\DataAccessObjectFactory.cs" />
+    <Compile Include="Persistence\DataParameterHelper.cs" />
+    <Compile Include="Persistence\IDataAccessObject.cs" />
+    <Compile Include="Persistence\OrderRepository.cs" />
     <Compile Include="OrderService.cs" />
+    <Compile Include="Persistence\SqlDataAccessObject.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />

TechTest/AnyCompany/IOrderService.cs

@@ -0,0 +1,12 @@
+using AnyCompany.Model;
+using System.Collections.Generic;
+
+namespace AnyCompany
+{
+    public interface IOrderService
+    {
+        bool PlaceOrder(Order order, int customerId);
+
+        List<Customer> LoadAllCustomersAndOrders();
+    }
+}

TechTest/AnyCompany/Customer.cs → TechTest/AnyCompany/Model/Customer.cs

@@ -1,13 +1,18 @@
 using System;
+using System.Collections.Generic;
 
-namespace AnyCompany
+namespace AnyCompany.Model
 {
     public class Customer
     {
+        public int CustomerId { get; set; }
+
         public string Country { get; set; }
 
         public DateTime DateOfBirth { get; set; }
 
         public string Name { get; set; }
+
+        public List<Order> Orders { get; set; }
     }
 }

TechTest/AnyCompany/Order.cs → TechTest/AnyCompany/Model/Order.cs

@@ -1,9 +1,11 @@
-namespace AnyCompany
+namespace AnyCompany.Model
 {
     public class Order
     {
         public int OrderId { get; set; }
+
         public double Amount { get; set; }
+
         public double VAT { get; set; }
     }
 }

TechTest/AnyCompany/OrderService.cs

@@ -1,24 +1,60 @@
-namespace AnyCompany
+using AnyCompany.Model;
+using System;
+using System.Collections.Generic;
+
+namespace AnyCompany
 {
-    public class OrderService
+    public class OrderService : IOrderService
     {
         private readonly OrderRepository orderRepository = new OrderRepository();
 
+        public List<Customer> LoadAllCustomersAndOrders()
+        {
+            try
+            {
+                List<Customer> customers = CustomerRepository.LoadAllCustomers();
+
+                return customers;
+            }
+            catch (Exception ex)
+            {
+                throw new Exception("Failed to load customers.", ex);
+            }
+        }
+
         public bool PlaceOrder(Order order, int customerId)
         {
-            Customer customer = CustomerRepository.Load(customerId);
+            if (order == null)
+                throw new ArgumentNullException();
+
+            try
+            {
+                Customer customer = CustomerRepository.Load(customerId);
+
+                if (order.Amount == 0)
+                    return false;
 
-            if (order.Amount == 0)
-                return false;
+                if (customer == null)
+                    return false;
 
-            if (customer.Country == "UK")
-                order.VAT = 0.2d;
-            else
-                order.VAT = 0;
+                switch (customer.Country)
+                {
+                    case "UK":
+                        order.VAT = 0.2d;
+                        break;
+                    default:
+                        order.VAT = 0;
+                        break;
+                }
 
-            orderRepository.Save(order);
+                orderRepository.Save(order, customerId);
 
-            return true;
+                return true;
+            }
+            catch (Exception ex)
+            {
+                throw new Exception($"Failed to save order for customer with customer ID {customerId}", ex);
+            }
         }
     }
 }