Beleza na web api project

BelezaNaWeb/BelezaNaWeb.Domain/BelezaNaWeb.Domain.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Reference Include="Microsoft.Net.Http.Headers">
+      <HintPath>C:\Program Files\dotnet\packs\Microsoft.AspNetCore.App.Ref\6.0.4\ref\net6.0\Microsoft.Net.Http.Headers.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+
+</Project>

BelezaNaWeb/BelezaNaWeb.Domain/Constants/WareHouseTypeConstants.cs

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+namespace BelezaNaWeb.Domain.Constants
+{
+    public static class WareHouseTypeConstants
+    {
+        public const string ECOMMERCE = "ECOMMERCE";
+        public const string PHYSICAL_STORE = "PHYSICAL_STORE";
+    }
+}

BelezaNaWeb/BelezaNaWeb.Domain/Entities/Inventory.cs

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+namespace BelezaNaWeb.Domain.Entities
+{
+    public class Inventory
+    {
+        public int Quantity { get; }
+        public List<Warehouse> Warehouses { get; }
+
+        public Inventory(List<Warehouse> warehouses)
+        {            
+            this.Warehouses = warehouses;
+            Quantity = SetQuantity(this.Warehouses);
+        }
+
+        private static int SetQuantity(IEnumerable<Warehouse> wh) => wh.Sum(item => item.Quantity);
+    }
+}

BelezaNaWeb/BelezaNaWeb.Domain/Entities/Product.cs

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+namespace BelezaNaWeb.Domain.Entities
+{
+    public class Product
+    {
+        public int Sku { get; set; }
+        public string Name { get; set; }
+        public Inventory Inventory { get; }
+        public bool IsMarketable { get; }
+
+        public Product(Inventory inventory)
+        {
+            Inventory = inventory;
+            IsMarketable = SetMarketable(inventory);
+        }
+
+        private static bool SetMarketable(Inventory inventory) => inventory.Quantity > 0;
+    }
+}

BelezaNaWeb/BelezaNaWeb.Domain/Entities/Warehouse.cs

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+namespace BelezaNaWeb.Domain.Entities
+{
+    public class Warehouse
+    {        
+        public string Locality { get; set; }
+        public int Quantity { get; set; }
+        public string Type { get; set; }
+    }
+}

BelezaNaWeb/BelezaNaWeb.Domain/Response/BaseResponse.cs

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+using System.Net;
+
+namespace BelezaNaWeb.Domain.Response
+{
+    public class BaseResponse<TEntity>
+    {
+        public HttpStatusCode HttpStatusCode { get; set; }
+        public string Message { get; set; }
+        public List<TEntity> Data { get; set; }
+
+        public BaseResponse()
+        {
+            Data = new List<TEntity>();
+        }
+    }
+}

BelezaNaWeb/BelezaNaWeb.Infrastructure/BelezaNaWeb.Infrastructure.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

BelezaNaWeb/BelezaNaWeb.Repository/BelezaNaWeb.Repository.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\BelezaNaWeb.Domain\BelezaNaWeb.Domain.csproj" />
+  </ItemGroup>
+
+</Project>

BelezaNaWeb/BelezaNaWeb.Repository/IProductRepository.cs

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+using BelezaNaWeb.Domain.Entities;
+
+namespace BelezaNaWeb.Repository
+{
+    public interface IProductRepository
+    {
+        Product? GetBySku(int sku);
+        List<Product> GetProducts();
+        Product Create(Product product);
+        void UpdateBySku(int sku, Product product);
+        void DeleteBySku(int sku);
+    }
+}

BelezaNaWeb/BelezaNaWeb.Repository/ProductRepository.cs

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+using BelezaNaWeb.Domain.Entities;
+
+namespace BelezaNaWeb.Repository
+{
+    public class ProductRepository : IProductRepository
+    {
+        private static readonly List<Product> Products = new();
+
+        public Product? GetBySku(int sku) => Products.FirstOrDefault(p => p.Sku == sku);
+
+        public List<Product> GetProducts() => Products.ToList();
+
+        public Product Create(Product? product)
+        {
+            if (Products.All(p => p.Sku != product.Sku))
+                Products.Add(product);
+            return product;
+        }
+
+        public void UpdateBySku(int sku, Product newProduct)
+        {
+            var currentProduct = GetBySku(sku);
+            if (currentProduct is not null) return;
+            if (newProduct != null && sku != newProduct.Sku) return;
+            DeleteBySku(sku);
+            Products.Add(newProduct);
+        }
+
+        public void DeleteBySku(int sku)
+        {
+            Products.RemoveAll(p => p.Sku == sku);
+        }
+    }
+}

BelezaNaWeb/BelezaNaWeb.Services/BelezaNaWeb.Services.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\BelezaNaWeb.Domain\BelezaNaWeb.Domain.csproj" />
+    <ProjectReference Include="..\BelezaNaWeb.Repository\BelezaNaWeb.Repository.csproj" />
+  </ItemGroup>
+
+</Project>

BelezaNaWeb/BelezaNaWeb.Services/IProductService.cs

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+using BelezaNaWeb.Domain.Entities;
+using BelezaNaWeb.Domain.Response;
+
+namespace BelezaNaWeb.Services
+{
+    public interface IProductService
+    {
+        Task<BaseResponse<Product>> CreateProduct(Product? product);
+        Task<BaseResponse<bool>> DeleteProductBySku(int sku);
+        Task<BaseResponse<Product>> GetAllProducts();
+        Task<BaseResponse<Product>> GetBySku(int sku);
+        Task<BaseResponse<bool>> UpdateBySku(int sku, Product? product);
+    }
+}

BelezaNaWeb/BelezaNaWeb.Services/ProductService.cs

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+using System.Net;
+using BelezaNaWeb.Domain.Entities;
+using BelezaNaWeb.Domain.Response;
+using BelezaNaWeb.Repository;
+
+namespace BelezaNaWeb.Services
+{
+    public class ProductService : IProductService
+    {
+        private readonly IProductRepository _productRepository;
+
+        public ProductService(IProductRepository productRepository)
+        {
+            _productRepository = productRepository;
+        }
+
+        public async Task<BaseResponse<Product>> CreateProduct(Product? product)
+        {
+            var response = new BaseResponse<Product>();
+
+            if (product is not null && _productRepository.GetBySku(product.Sku) is null)
+            {
+                response.Data.Add(_productRepository.Create(product));
+                response.Message = "Product has been created";
+                response.HttpStatusCode = HttpStatusCode.OK;
+            }
+            else
+            {
+                throw new Exception($"Product already exist with this sku: {product.Sku}");
+            }
+
+            return response;
+        }
+
+        public async Task<BaseResponse<bool>> DeleteProductBySku(int sku)
+        {
+            var response = new BaseResponse<bool>();
+
+            if (_productRepository.GetBySku(sku) is not null)
+            {
+                _productRepository.DeleteBySku(sku);
+                response.HttpStatusCode = HttpStatusCode.OK;
+                response.Message = "Product has been deleted";
+                response.Data.Add(true);
+            }
+            else
+            {
+                response.HttpStatusCode = HttpStatusCode.NotFound;
+                response.Data.Add(false);
+                response.Message = "Product not found";
+            }
+
+            return response;
+        }
+
+        public async Task<BaseResponse<Product>> GetAllProducts()
+        {
+            var response = new BaseResponse<Product>();
+            var helper = _productRepository.GetProducts();
+            if (helper is not null)
+            {
+                response.Data.AddRange(helper);
+            }
+            response.HttpStatusCode = HttpStatusCode.OK;
+            response.Message = "Products has been retrieved";
+
+            return response;
+        }
+
+        public async Task<BaseResponse<Product>> GetBySku(int sku)
+        {
+            var response = new BaseResponse<Product>();
+            var helper = _productRepository.GetBySku(sku);
+            if (helper is not null)
+            {
+                response.Data.Add(helper);
+                response.HttpStatusCode = HttpStatusCode.OK;
+                response.Message = "Product has been retrieved";
+            }
+            else
+            {
+                response.HttpStatusCode = HttpStatusCode.NotFound;
+                response.Message = "Product not found";
+            }
+
+
+            return response;
+        }
+        public async Task<BaseResponse<bool>> UpdateBySku(int sku, Product? product)
+        {
+            var response = new BaseResponse<bool>();
+            var helper = _productRepository.GetBySku(sku);
+            if (helper is not null && product is not null)
+            {
+                _productRepository.UpdateBySku(sku, product);
+                response.Data.Add(true);
+                response.HttpStatusCode = HttpStatusCode.OK;
+                response.Message = "Product updated";
+            }
+            else
+            {
+                response.HttpStatusCode = HttpStatusCode.NotFound;
+                response.Message = "Product Not Fount";
+            }
+
+            return response;
+        }
+    }
+}

BelezaNaWeb/BelezaNaWeb.Tests/BelezaNaWeb.Tests.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="coverlet.collector" Version="3.1.2">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\BelezaNaWeb.Repository\BelezaNaWeb.Repository.csproj" />
+  </ItemGroup>
+
+</Project>

BelezaNaWeb/BelezaNaWeb.Tests/UnitTests/Product/ProductTest.cs

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+using System.Collections.Generic;
+using System.Linq;
+using BelezaNaWeb.Domain.Constants;
+using BelezaNaWeb.Domain.Entities;
+using BelezaNaWeb.Repository;
+using Xunit;
+
+namespace BelezaNaWeb.Tests.UnitTests.Product
+{
+    public class ProductTest
+    {
+        private readonly ProductRepository _productRepository;
+        private Domain.Entities.Product _product;
+
+        public ProductTest()
+        {
+            _productRepository = new ProductRepository();
+
+            var warehouse1 = new Warehouse { Locality = "SP", Quantity = 10, Type = WareHouseTypeConstants.ECOMMERCE };
+            var warehouse2 = new Warehouse { Locality = "RJ", Quantity = 12, Type = WareHouseTypeConstants.PHYSICAL_STORE };
+            _product = _productRepository.Create(new Domain.Entities.Product(new Inventory(new List<Warehouse> { warehouse1, warehouse2 })) { Name = "L'Oréal Professionnel Exp...", Sku = 43264 });
+        }
+
+        [Fact]
+        public void Get_Product_By_Valid_Sku()
+        {
+            Assert.True(_productRepository.GetBySku(43264) is not null);
+        }
+
+        [Fact]
+        public void Get_Product_By_Invalid_Sku()
+        {
+            Assert.False(_productRepository.GetBySku(33) is not null);
+        }
+
+        [Fact]
+        public void Delete_Product_By_Valid_Sku_And_Verify_Deleted_Product()
+        {
+            _productRepository.DeleteBySku(43264);
+            var product = _productRepository.GetBySku(43264);
+
+            Assert.True(product is null);
+        }
+
+        [Fact]
+        public void Verify_Inventory_Quantity_Is_Calculated_Correctly()
+        {
+            var product = _productRepository.GetBySku(43264);
+            var inventoryQuantity = product.Inventory.Quantity;
+            var wareHousesQuantity = product.Inventory.Warehouses.Sum(inventoryWarehouse => inventoryWarehouse.Quantity);
+
+            Assert.Equal(inventoryQuantity, wareHousesQuantity);
+        }
+    }
+}