Add Saving Cart to the DB

All the changes necessary to save shopping cart to DB

RMData/RMData.sqlproj

@@ -73,6 +73,10 @@
     <Build Include="dbo\Tables\Inventory.sql" />
     <Build Include="dbo\Stored Procedures\spUserLookup.sql" />
     <Build Include="dbo\Stored Procedures\spProductGetAll.sql" />
+    <Build Include="dbo\Stored Procedures\spProductGetById.sql" />
+    <Build Include="dbo\Stored Procedures\spSaleInsert.sql" />
+    <Build Include="dbo\Stored Procedures\spSaleDetailInsert.sql" />
+    <Build Include="dbo\Stored Procedures\spSaleLookUp.sql" />
   </ItemGroup>
   <ItemGroup>
     <RefactorLog Include="RMData.refactorlog" />

RMData/dbo/Stored Procedures/spProductGetById.sql

@@ -0,0 +1,10 @@
+CREATE PROCEDURE [dbo].[spProductGetById]
+	@Id int
+AS
+BEGIN
+	SET NOCOUNT ON;
+
+	select Id, ProductName, [Description], RetailPrice, QuantityInStock, IsTaxable
+	from [dbo].[Product]
+	where Id = @Id;
+END

RMData/dbo/Stored Procedures/spSaleDetailInsert.sql

@@ -0,0 +1,14 @@
+CREATE PROCEDURE [dbo].[spSaleDetailInsert]
+	@SaleId int,
+	@ProductId int,
+	@Quantity int,
+	@PurchasePrice money,
+	@Tax money
+AS
+BEGIN
+	SET NOCOUNT ON;
+
+	INSERT INTO dbo.SaleDetail(SaleId, ProductId, Quantity, PurchasePrice, Tax)
+	VALUES (@SaleId, @ProductId, @Quantity, @PurchasePrice, @Tax)
+
+END

RMData/dbo/Stored Procedures/spSaleInsert.sql

@@ -0,0 +1,16 @@
+CREATE PROCEDURE [dbo].[spSaleInsert]
+	@Id int output,
+	@CashierId nvarchar(128),
+	@SaleDate datetime2,
+	@SubTotal money,
+	@Tax money,
+	@Total money
+AS
+BEGIN
+	SET NOCOUNT ON;
+
+	INSERT INTO dbo.Sale(CashierId, SaleDate, SubTotal, Tax, Total)
+	VALUES (@CashierId, @SaleDate, @SubTotal, @Tax, @Total);
+
+	SELECT @Id = @@IDENTITY;
+END

RMData/dbo/Stored Procedures/spSaleLookUp.sql

@@ -0,0 +1,11 @@
+CREATE PROCEDURE [dbo].[spSaleLookUp]
+	@CashierId nvarchar(128),
+	@SaleDate datetime2
+AS
+BEGIN 
+	SET NOCOUNT ON;
+	
+	Select Id
+	from dbo.Sale
+	where CashierId = @CashierId and SaleDate = @SaleDate;
+END

RMDataManager/Controllers/SaleController.cs

@@ -0,0 +1,24 @@
+using Microsoft.AspNet.Identity;
+using RMDataManagerLibrary.DataAcccess;
+using RMDataManagerLibrary.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Web.Http;
+
+namespace RMDataManager.Controllers
+{
+    [Authorize]
+    public class SaleController : ApiController
+    {
+        public void Post(SaleModel sale)
+        {
+            string cashierId = RequestContext.Principal.Identity.GetUserId();
+            SaleData data = new SaleData();
+
+            data.SaveSale(sale, cashierId);
+        }
+    }
+}

RMDataManager/RMDataManager.csproj

@@ -214,6 +214,7 @@
     <Compile Include="Controllers\AccountController.cs" />
     <Compile Include="Controllers\HomeController.cs" />
     <Compile Include="Controllers\ProductController.cs" />
+    <Compile Include="Controllers\SaleController.cs" />
     <Compile Include="Controllers\UserController.cs" />
     <Compile Include="Controllers\ValuesController.cs" />
     <Compile Include="Global.asax.cs">

RMDataManager/Web.config

@@ -13,6 +13,7 @@
 	  <add name="RMData" connectionString="Data Source=(localdb)\MSSQLLocalDB;Initial Catalog=RMData;Integrated Security=True;Connect Timeout=60;Encrypt=False;TrustServerCertificate=False;ApplicationIntent=ReadWrite;MultiSubnetFailover=False" />
   </connectionStrings>
   <appSettings>
+	  <add key="taxRate" value="8.75" />
   </appSettings>
   <system.web>
     <authentication mode="None" />

RMDataManagerLibrary/ConfigHelper.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RMDataManagerLibrary
+{
+    public class ConfigHelper
+    {
+        public static decimal GetTaxRate()
+        {
+            string rateText = ConfigurationManager.AppSettings["taxRate"];
+
+            bool isValidTaxRate = Decimal.TryParse(rateText, out decimal output);
+
+            if (isValidTaxRate == false)
+            {
+                throw new ConfigurationErrorsException("The taxRate is not setup properly");
+            }
+
+            return output;
+        }
+    }
+}

RMDataManagerLibrary/DataAcccess/ProductData.cs

@@ -18,5 +18,14 @@ namespace RMDataManagerLibrary.DataAcccess
 
             return output;
         }
+
+        public ProductModel GetProductById(int productId)
+        {
+            SqlDataAccess sql = new SqlDataAccess();
+
+            var output = sql.LoadData<ProductModel, dynamic>("dbo.spProductGetById", new {Id = productId}, "RMData").FirstOrDefault();
+
+            return output;
+        }
     }
 }

RMDataManagerLibrary/DataAcccess/SaleData.cs

@@ -0,0 +1,76 @@
+using RMDataManagerLibrary.Internal.DataAccess;
+using RMDataManagerLibrary.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RMDataManagerLibrary.DataAcccess
+{
+    public class SaleData
+    {
+        //TODO: Make this SOLID/DRY/BETTER
+        public void SaveSale(SaleModel saleInfo, string cashierId)
+        {
+            List<SaleDetailDBModel> details = new List<SaleDetailDBModel>();
+            ProductData products = new ProductData();
+            decimal taxRate = ConfigHelper.GetTaxRate()/100;
+
+            foreach (var item in saleInfo.SaleDetails)
+            {
+                var detail = new SaleDetailDBModel
+                {
+                    ProductId = item.ProductId,
+                    Quantity = item.Quantity
+                };
+
+                // get the information about this product
+                var productInfo = products.GetProductById(item.ProductId);
+
+                if (productInfo == null)
+                {
+                    throw new Exception($"Product with Id {item.ProductId} could not be found in DB");
+                }
+
+                detail.PurchasePrice = productInfo.RetailPrice * detail.Quantity;
+
+                if (productInfo.IsTaxable)
+                {
+                    detail.Tax = detail.PurchasePrice * taxRate;
+                }
+
+                details.Add(detail);
+            }
+
+            SaleDBModel sale = new SaleDBModel
+            {
+                SubTotal = details.Sum(x => x.PurchasePrice),
+                Tax = details.Sum(x => x.Tax),
+                CashierId = cashierId
+            };
+
+            sale.Total = sale.SubTotal + sale.Tax;
+
+            //save
+            SqlDataAccess sql = new SqlDataAccess();
+            sql.SaveData("dbo.spSaleInsert", sale, "RMData");
+
+            // get id from saleModel
+
+            sale.Id = sql.LoadData<int, dynamic>("spSaleLookUp",new { sale.CashierId, sale.SaleDate }, "RMData").FirstOrDefault();
+
+            // finish filling up sale details
+            foreach (var item in details)
+            {
+                item.SaleId = sale.Id;
+                
+                // Save Details
+
+                sql.SaveData("dbo.spSaleDetailInsert", item, "RMData");
+            }
+
+            
+        }
+    }
+}

RMDataManagerLibrary/Models/SaleDBModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RMDataManagerLibrary.Models
+{
+    public class SaleDBModel
+    {
+        public int Id { get; set; }
+        public string CashierId { get; set; }
+        public DateTime SaleDate { get; set; } = DateTime.UtcNow;
+        public decimal SubTotal { get; set; }
+        public decimal Tax { get; set; }
+        public decimal Total { get; set; }
+
+
+    }
+}

RMDataManagerLibrary/Models/SaleDetailDBModel.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RMDataManagerLibrary.Models
+{
+    public class SaleDetailDBModel
+    {
+        public int SaleId { get; set; }
+        public int ProductId { get; set; }
+        public int Quantity { get; set; }
+        public decimal PurchasePrice { get; set; }
+        public decimal Tax { get; set; }
+    }
+}

RMDataManagerLibrary/Models/SaleDetailModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+
+namespace RMDataManagerLibrary.Models
+{
+    public class SaleDetailModel
+    {
+        public int ProductId { get; set; }
+        public int Quantity { get; set; }
+    }
+}

RMDataManagerLibrary/Models/SaleModel.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+
+namespace RMDataManagerLibrary.Models
+{
+    public class SaleModel
+    {
+        public List<SaleDetailModel> SaleDetails { get; set; }
+    }
+}

RMDataManagerLibrary/RMDataManagerLibrary.csproj

@@ -45,9 +45,15 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="ConfigHelper.cs" />
     <Compile Include="DataAcccess\ProductData.cs" />
+    <Compile Include="DataAcccess\SaleData.cs" />
     <Compile Include="DataAcccess\UserData.cs" />
     <Compile Include="Models\ProductModel.cs" />
+    <Compile Include="Models\SaleDBModel.cs" />
+    <Compile Include="Models\SaleDetailDBModel.cs" />
+    <Compile Include="Models\SaleDetailModel.cs" />
+    <Compile Include="Models\SaleModel.cs" />
     <Compile Include="Models\UserModel.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Internal\DataAccess\SqlDataAccess.cs" />

RMWPFInterfaceLibrary/Api/ISaleEndPoint.cs

@@ -0,0 +1,10 @@
+using RMWPFInterfaceLibrary.Models;
+using System.Threading.Tasks;
+
+namespace RMWPFInterfaceLibrary.Api
+{
+    public interface ISaleEndPoint
+    {
+        Task PostSale(SaleModel sale);
+    }
+}

RMWPFInterfaceLibrary/Api/SaleEndPoint.cs

@@ -0,0 +1,34 @@
+using RMWPFInterfaceLibrary.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RMWPFInterfaceLibrary.Api
+{
+    public class SaleEndPoint : ISaleEndPoint
+    {
+        private IAPIHelper _apiHelper;
+        public SaleEndPoint(IAPIHelper apiHelper)
+        {
+            _apiHelper = apiHelper;
+        }
+
+        public async Task PostSale(SaleModel sale)
+        {
+            using (HttpResponseMessage response = await _apiHelper.ApiClient.PostAsJsonAsync("api/Sale", sale))
+            {
+                if (response.IsSuccessStatusCode)
+                {
+                    // Log call
+                }
+                else
+                {
+                    throw new Exception(response.ReasonPhrase);
+                }
+            }
+        }
+    }
+}

RMWPFInterfaceLibrary/Models/SaleDetailModel.cs

@@ -0,0 +1,8 @@
+namespace RMWPFInterfaceLibrary.Models
+{
+    public class SaleDetailModel
+    {
+        public int ProductId { get; set; }
+        public int Quantity { get; set; }
+    }
+}

RMWPFInterfaceLibrary/Models/SaleModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RMWPFInterfaceLibrary.Models
+{
+    public class SaleModel
+    {
+        public List<SaleDetailModel> SaleDetails { get; set; } = new List<SaleDetailModel>();
+    }
+}

RMWPFInterfaceLibrary/RMWPFInterfaceLibrary.csproj

@@ -51,7 +51,9 @@
     <Compile Include="Api\APIHelper.cs" />
     <Compile Include="Api\IAPIHelper.cs" />
     <Compile Include="Api\IProductEndPoint.cs" />
+    <Compile Include="Api\ISaleEndPoint.cs" />
     <Compile Include="Api\ProductEndPoint.cs" />
+    <Compile Include="Api\SaleEndPoint.cs" />
     <Compile Include="Helpers\ConfigHelper.cs" />
     <Compile Include="Helpers\IConfigHelper.cs" />
     <Compile Include="Models\AuthenticatedUser.cs" />
@@ -59,6 +61,8 @@
     <Compile Include="Models\ILoggedInUserModel.cs" />
     <Compile Include="Models\LoggedInUserModel.cs" />
     <Compile Include="Models\ProductModel.cs" />
+    <Compile Include="Models\SaleDetailModel.cs" />
+    <Compile Include="Models\SaleModel.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>

RMWPFUserInterface/BootStrapper.cs

@@ -29,7 +29,8 @@ namespace RMWPFUserInterface
         protected override void Configure()
         {
             _container.Instance(_container)
-                .PerRequest<IProductEndPoint, ProductEndPoint>();
+                .PerRequest<IProductEndPoint, ProductEndPoint>()
+                .PerRequest<ISaleEndPoint, SaleEndPoint>();    
 
             _container
                 .Singleton<IWindowManager, WindowManager>()

RMWPFUserInterface/ViewModels/LoginViewModel.cs

@@ -12,8 +12,8 @@ namespace RMWPFUserInterface.ViewModels
 {
     public class LoginViewModel : Screen
     {
-        private string _userName;
-        private string _password;
+        private string _userName ="test@test";
+        private string _password = "Test1234.";
         private IAPIHelper _apiHelper;
         private IEventAggregator _events;
 

RMWPFUserInterface/ViewModels/SalesViewModel.cs

@@ -15,10 +15,13 @@ namespace RMWPFUserInterface.ViewModels
     {
         IProductEndPoint _productEndPoint;
         IConfigHelper _configHelper;
-        public SalesViewModel(IProductEndPoint productEndPoint, IConfigHelper configHelper)
+        ISaleEndPoint _saleEndPoint;
+
+        public SalesViewModel(IProductEndPoint productEndPoint, IConfigHelper configHelper, ISaleEndPoint saleEndPoint)
         {
             _productEndPoint = productEndPoint;
             _configHelper = configHelper;
+            _saleEndPoint = saleEndPoint;
         }
 
         protected override async void OnViewLoaded(object view)
@@ -170,6 +173,7 @@ namespace RMWPFUserInterface.ViewModels
             NotifyOfPropertyChange(() => SubTotal);
             NotifyOfPropertyChange(() => Tax);
             NotifyOfPropertyChange(() => Total);
+            NotifyOfPropertyChange(() => CanCheckOut);
             Cart.ResetBindings();
         }
 
@@ -189,6 +193,7 @@ namespace RMWPFUserInterface.ViewModels
             NotifyOfPropertyChange(() => SubTotal);
             NotifyOfPropertyChange(() => Tax);
             NotifyOfPropertyChange(() => Total);
+            NotifyOfPropertyChange(() => CanCheckOut);
         }
 
         public bool CanCheckOut
@@ -197,14 +202,29 @@ namespace RMWPFUserInterface.ViewModels
             {
                 bool output = false;
 
-                // Make sure there is something in the cart
+                if ( Cart.Count > 0)
+                {
+                    output = true;
+                }
 
                 return output;
             }
         }
-        public void CheckOut()
+        public async Task CheckOut()
         {
+            SaleModel sale = new SaleModel();
+
+            foreach (var item in Cart)
+            {
+                sale.SaleDetails.Add(new SaleDetailModel
+                {
+                    ProductId = item.Product.Id,
+                    Quantity = item.QuantityInCart
+                });
 
             }
+
+            await _saleEndPoint.PostSale(sale);
+        }
     }
 }