(#70) Export Html, Pdf Files

.gitignore

@@ -12,6 +12,7 @@
 /src/Microservices/Services.Storage/ClassifiedAds.Services.Storage.Api/Migrations/
 /src/UIs/reactjs/.eslintcache
 .tye/
+.local-chromium/
 
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.

src/Microservices/Common/ClassifiedAds.CrossCuttingConcerns/HtmlGenerator/IHtmlGenerator.cs

@@ -0,0 +1,9 @@
+using System.Threading.Tasks;
+
+namespace ClassifiedAds.CrossCuttingConcerns.HtmlGenerator
+{
+    public interface IHtmlGenerator
+    {
+        Task<string> GenerateAsync(string template, object model);
+    }
+}

src/Microservices/Common/ClassifiedAds.CrossCuttingConcerns/PdfConverter/IPdfConverter.cs

@@ -0,0 +1,17 @@
+using System.IO;
+using System.Threading.Tasks;
+
+namespace ClassifiedAds.CrossCuttingConcerns.PdfConverter
+{
+    public interface IPdfConverter
+    {
+        Stream Convert(string html, PdfOptions pdfOptions = null);
+
+        Task<Stream> ConvertAsync(string html, PdfOptions pdfOptions = null);
+    }
+
+    public class PdfOptions
+    {
+
+    }
+}

src/Microservices/Common/ClassifiedAds.Infrastructure/ClassifiedAds.Infrastructure.csproj

@@ -30,6 +30,7 @@
     <PackageReference Include="Confluent.Kafka" Version="1.5.2" />
     <PackageReference Include="CryptographyHelper" Version="1.0.0-beta4" />
     <PackageReference Include="Dapper.StrongName" Version="2.0.35" />
+    <PackageReference Include="DinkToPdf" Version="1.0.8" />
     <PackageReference Include="Google.Protobuf" Version="3.10.0" />
     <PackageReference Include="Grpc.Net.Client" Version="2.25.0" />
     <PackageReference Include="IdentityModel" Version="4.4.0" />
@@ -60,7 +61,9 @@
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.0.0-rc1.1" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.0.0-rc1.1" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.0.0-rc1.1" />
+    <PackageReference Include="PuppeteerSharp" Version="4.0.0" />
     <PackageReference Include="RabbitMQ.Client" Version="6.2.1" />
+    <PackageReference Include="RazorLight" Version="2.0.0-rc.3" />
     <PackageReference Include="SendGrid" Version="9.21.2" />
     <PackageReference Include="Serilog" Version="2.10.0" />
     <PackageReference Include="Serilog.AspNetCore" Version="3.4.0" />
@@ -79,4 +82,15 @@
     <ProjectReference Include="..\ClassifiedAds.Domain\ClassifiedAds.Domain.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ContentWithTargetPath Include="..\libs\libwkhtmltox\libwkhtmltox-0.12.4-x64.dll">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>libwkhtmltox.dll</TargetPath>
+    </ContentWithTargetPath>
+    <ContentWithTargetPath Include="..\libs\libwkhtmltox\libwkhtmltox-0.12.4-x64.so">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <TargetPath>libwkhtmltox.so</TargetPath>
+    </ContentWithTargetPath>
+  </ItemGroup>
+
 </Project>

src/Microservices/Common/ClassifiedAds.Infrastructure/HtmlGenerators/HtmlGenerator.cs

@@ -0,0 +1,21 @@
+using ClassifiedAds.CrossCuttingConcerns.HtmlGenerator;
+using RazorLight;
+using System.Threading.Tasks;
+
+namespace ClassifiedAds.Infrastructure.HtmlGenerators
+{
+    public class HtmlGenerator : IHtmlGenerator
+    {
+        private readonly IRazorLightEngine _razorLightEngine;
+
+        public HtmlGenerator(IRazorLightEngine razorLightEngine)
+        {
+            _razorLightEngine = razorLightEngine;
+        }
+
+        public Task<string> GenerateAsync(string template, object model)
+        {
+            return _razorLightEngine.CompileRenderAsync(template, model);
+        }
+    }
+}

src/Microservices/Common/ClassifiedAds.Infrastructure/HtmlGenerators/HtmlGeneratorCollectionExtensions.cs

@@ -0,0 +1,23 @@
+using ClassifiedAds.CrossCuttingConcerns.HtmlGenerator;
+using ClassifiedAds.Infrastructure.HtmlGenerators;
+using RazorLight;
+using System;
+
+namespace Microsoft.Extensions.DependencyInjection
+{
+    public static class HtmlGeneratorCollectionExtensions
+    {
+        public static IServiceCollection AddHtmlGenerator(this IServiceCollection services)
+        {
+            var engine = new RazorLightEngineBuilder()
+                   .UseFileSystemProject(Environment.CurrentDirectory)
+                   .UseMemoryCachingProvider()
+                   .Build();
+
+            services.AddSingleton<IRazorLightEngine>(engine);
+            services.AddSingleton<IHtmlGenerator, HtmlGenerator>();
+
+            return services;
+        }
+    }
+}

src/Microservices/Common/ClassifiedAds.Infrastructure/PdfConverters/DinkToPdf/DinkToPdfConverter.cs

@@ -0,0 +1,51 @@
+using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
+using DinkToPdf;
+using DinkToPdf.Contracts;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace ClassifiedAds.Infrastructure.PdfConverters.DinkToPdf
+{
+    public class DinkToPdfConverter : IPdfConverter
+    {
+        private readonly IConverter _converter;
+
+        public DinkToPdfConverter(IConverter converter)
+        {
+            _converter = converter;
+        }
+
+        public Stream Convert(string html, PdfOptions pdfOptions = null)
+        {
+            var doc = new HtmlToPdfDocument()
+            {
+                GlobalSettings =
+                {
+                    ColorMode = ColorMode.Color,
+                    Orientation = Orientation.Portrait,
+                    PaperSize = PaperKind.A4,
+                    Margins = new MarginSettings() { Top = 10, Bottom = 15, Left = 10, Right = 10 },
+                },
+                Objects =
+                {
+                    new ObjectSettings()
+                    {
+                        PagesCount = true,
+                        HtmlContent = html,
+                        WebSettings = { DefaultEncoding = "utf-8", Background = true },
+                        HeaderSettings = { FontSize = 9, Right = "Page [page] of [toPage]", Line = true, Spacing = 2.812 },
+                    },
+                },
+            };
+
+            byte[] pdf = _converter.Convert(doc);
+
+            return new MemoryStream(pdf);
+        }
+
+        public Task<Stream> ConvertAsync(string html, PdfOptions pdfOptions = null)
+        {
+            return Task.FromResult(Convert(html, pdfOptions));
+        }
+    }
+}

src/Microservices/Common/ClassifiedAds.Infrastructure/PdfConverters/DinkToPdf/DinkToPdfConverterCollectionExtensions.cs

@@ -0,0 +1,18 @@
+using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
+using ClassifiedAds.Infrastructure.PdfConverters.DinkToPdf;
+using DinkToPdf;
+using DinkToPdf.Contracts;
+
+namespace Microsoft.Extensions.DependencyInjection
+{
+    public static class DinkToPdfConverterCollectionExtensions
+    {
+        public static IServiceCollection AddDinkToPdfConverter(this IServiceCollection services)
+        {
+            services.AddSingleton(typeof(IConverter), new SynchronizedConverter(new PdfTools()));
+            services.AddSingleton<IPdfConverter, DinkToPdfConverter>();
+
+            return services;
+        }
+    }
+}

src/Microservices/Common/ClassifiedAds.Infrastructure/PdfConverters/PuppeteerSharp/PuppeteerSharpConverter.cs

@@ -0,0 +1,26 @@
+using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
+using PuppeteerSharp;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace ClassifiedAds.Infrastructure.PdfConverters.PuppeteerSharp
+{
+    public class PuppeteerSharpConverter : IPdfConverter
+    {
+        public Stream Convert(string html, CrossCuttingConcerns.PdfConverter.PdfOptions pdfOptions = null)
+        {
+            return ConvertAsync(html, pdfOptions).GetAwaiter().GetResult();
+        }
+
+        public async Task<Stream> ConvertAsync(string html, CrossCuttingConcerns.PdfConverter.PdfOptions pdfOptions = null)
+        {
+            await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
+            await using var page = await browser.NewPageAsync();
+            await page.SetContentAsync(html);
+            return new MemoryStream(await page.PdfDataAsync(new global::PuppeteerSharp.PdfOptions
+            {
+                PrintBackground = true,
+            }));
+        }
+    }
+}

src/Microservices/Common/ClassifiedAds.Infrastructure/PdfConverters/PuppeteerSharp/PuppeteerSharpConverterCollectionExtensions.cs

@@ -0,0 +1,19 @@
+using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
+using ClassifiedAds.Infrastructure.PdfConverters.PuppeteerSharp;
+using PuppeteerSharp;
+
+namespace Microsoft.Extensions.DependencyInjection
+{
+    public static class PuppeteerSharpConverterCollectionExtensions
+    {
+        public static IServiceCollection AddPuppeteerSharpPdfConverter(this IServiceCollection services)
+        {
+            var browserFetcher = new BrowserFetcher();
+            browserFetcher.DownloadAsync().GetAwaiter().GetResult();
+
+            services.AddSingleton<IPdfConverter, PuppeteerSharpConverter>();
+
+            return services;
+        }
+    }
+}

src/Microservices/Services.Identity/ClassifiedAds.Services.Identity.AuthServer/ClassifiedAds.Services.Identity.AuthServer.csproj

@@ -16,7 +16,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="3.1.1" />
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="5.0.2" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

src/Microservices/Services.Product/ClassifiedAds.Services.Product.Api/ClassifiedAds.Services.Product.Api.csproj

@@ -33,4 +33,15 @@
     <ProjectReference Include="..\..\Common\ClassifiedAds.Infrastructure\ClassifiedAds.Infrastructure.csproj" />
   </ItemGroup>
 
+  <PropertyGroup>
+    <PreserveCompilationReferences>true</PreserveCompilationReferences>
+    <PreserveCompilationContext>true</PreserveCompilationContext>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Content Update="Templates\ProductList.cshtml">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
 </Project>

src/Microservices/Services.Product/ClassifiedAds.Services.Product.Api/Controllers/ProductsController.cs

@@ -1,4 +1,6 @@
 using ClassifiedAds.Application;
+using ClassifiedAds.CrossCuttingConcerns.HtmlGenerator;
+using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
 using ClassifiedAds.Infrastructure.Web.Authorization.Policies;
 using ClassifiedAds.Services.Product.Authorization.Policies.Products;
 using ClassifiedAds.Services.Product.Commands;
@@ -12,7 +14,9 @@
 using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
+using System.Net.Mime;
 using System.Threading.Tasks;
 
 namespace ClassifiedAds.Services.Product.Controllers
@@ -25,11 +29,17 @@ public class ProductsController : ControllerBase
     {
         private readonly Dispatcher _dispatcher;
         private readonly ILogger _logger;
+        private readonly IHtmlGenerator _htmlGenerator;
+        private readonly IPdfConverter _pdfConverter;
 
-        public ProductsController(Dispatcher dispatcher, ILogger<ProductsController> logger)
+        public ProductsController(Dispatcher dispatcher, ILogger<ProductsController> logger,
+            IHtmlGenerator htmlGenerator,
+            IPdfConverter pdfConverter)
         {
             _dispatcher = dispatcher;
             _logger = logger;
+            _htmlGenerator = htmlGenerator;
+            _pdfConverter = pdfConverter;
         }
 
         [AuthorizePolicy(typeof(GetProductsPolicy))]
@@ -132,5 +142,18 @@ public async Task<ActionResult<IEnumerable<AuditLogEntryDTO>>> GetAuditLogs(Guid
 
             return Ok(entries.OrderByDescending(x => x.CreatedDateTime));
         }
+
+        [HttpGet("exportaspdf")]
+        public async Task<IActionResult> ExportAsPdf()
+        {
+            var products = await _dispatcher.DispatchAsync(new GetProductsQuery());
+            var model = products.ToModels();
+
+            var template = Path.Combine(Environment.CurrentDirectory, $"Templates/ProductList.cshtml");
+            var html = await _htmlGenerator.GenerateAsync(template, model);
+            var pdf = await _pdfConverter.ConvertAsync(html);
+
+            return File(pdf, MediaTypeNames.Application.Octet, "Products.pdf");
+        }
     }
 }

src/Microservices/Services.Product/ClassifiedAds.Services.Product.Api/Startup.cs

@@ -49,6 +49,9 @@ public void ConfigureServices(IServiceCollection services)
             services.AddDateTimeProvider();
             services.AddApplicationServices();
 
+            services.AddHtmlGenerator();
+            services.AddDinkToPdfConverter();
+
             services.AddProductModule(AppSettings);
 
             services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)