Add ReaderFactory

RhSolutions.AddIn/AddIn/RhSolutionsAddIn.cs

@@ -25,8 +25,7 @@ public sealed class RhSolutionsAddIn : IExcelAddIn
             .AddSingleton<IAddInConfiguration, AddInConfiguration>()
             .AddSingleton<IDatabaseClient, DatabaseClient>()
             .AddTransient<ICurrencyClient, CurrencyClient>()
-            .AddTransient<IFileDialog, FileDialog>()
+            .AddTransient<IFileDialog, FileDialog>();
-            .AddTransient<IReader, ExcelReader>();
 
         Services.AddSingleton<WriterFactory>();
         Services.AddTransient<ExcelWriter>()
@@ -34,6 +33,10 @@ public sealed class RhSolutionsAddIn : IExcelAddIn
         Services.AddTransient<DxfWriter>()
             .AddTransient<IWriter, DxfWriter>(s => s.GetService<DxfWriter>());
 
+        Services.AddSingleton<ReaderFactory>();
+        Services.AddTransient<ExcelReader>()
+            .AddTransient<IReader, ExcelReader>(s => s.GetService<ExcelReader>());
+
         Services.AddSingleton<ToolFactory>();
 
         ServiceProvider = Services.BuildServiceProvider();

RhSolutions.AddIn/Services/ReaderFactory.cs

@@ -0,0 +1,20 @@
+namespace RhSolutions.Services;
+
+public class ReaderFactory
+{
+    private readonly IServiceProvider _serviceProvider;
+
+    public ReaderFactory(IServiceProvider serviceProvider)
+    {
+        _serviceProvider = serviceProvider;     
+    }
+
+    public IReader GetReader(string readerName)
+    {
+        return readerName switch
+        {
+            "Excel" => (IReader)_serviceProvider.GetService(typeof(ExcelReader)),
+            _ => (IReader)_serviceProvider.GetService(typeof(ExcelReader))
+        };
+    }
+}

RhSolutions.AddIn/Services/WriterFactory.cs

@@ -13,6 +13,7 @@ public class WriterFactory
     {
         return writerName switch
         {
+            "Excel" => (IWriter)_serviceProvider.GetService(typeof(ExcelWriter)),
             "Dxf" => (IWriter)_serviceProvider.GetService(typeof(DxfWriter)),
             _ => (IWriter)_serviceProvider.GetService(typeof(ExcelWriter))
         };

RhSolutions.AddIn/Tools/ConvertTool.cs

@@ -18,6 +18,7 @@ internal class ConvertTool : Tool
     {
         Application app = RhSolutionsAddIn.Excel.Application;
         Worksheet worksheet = app.ActiveWorkbook.ActiveSheet;
+        _reader = _readerFactory.GetReader("Excel");
         var products = _reader.ReadProducts(new[] { worksheet });
         _writer = _writerFactory.GetWriter("Excel");
         _writer.WriteProducts(products);

RhSolutions.AddIn/Tools/DxfTool.cs

@@ -17,6 +17,7 @@ internal class DxfTool : Tool
     {
         Application app = RhSolutionsAddIn.Excel.Application;
         Worksheet worksheet = app.ActiveWorkbook.ActiveSheet;
+        _reader = _readerFactory.GetReader("Excel");
         var products = _reader.ReadProducts(new[] { worksheet });
         _writer = _writerFactory.GetWriter("Dxf");
         _writer.WriteProducts(products);

RhSolutions.AddIn/Tools/ExportTool.cs

@@ -17,6 +17,7 @@ internal class ExportTool : Tool
     public override void Execute()
     {
         Application app = RhSolutionsAddIn.Excel.Application;
+        _reader = _readerFactory.GetReader("Excel");
         var products = _reader.ReadProducts(app.Selection);
         _writer = _writerFactory.GetWriter("Excel");
         _writer.WriteProducts(products);

RhSolutions.AddIn/Tools/MergeTool.cs

@@ -17,6 +17,7 @@ internal class MergeTool : Tool
     {
         IFileDialog dialog = RhSolutionsAddIn.ServiceProvider.GetRequiredService<IFileDialog>();
         string[] files = dialog.GetFiles();
+        _reader = _readerFactory.GetReader("Excel");
         var products = _reader.ReadProducts(files);
         _writer = _writerFactory.GetWriter("Excel");
         _writer.WriteProducts(products);

RhSolutions.AddIn/Tools/Tool.cs

@@ -9,13 +9,14 @@ namespace RhSolutions.Tools;
 #endif
 internal abstract class Tool : IDisposable
 {
-    protected readonly IReader _reader;
+    protected readonly ReaderFactory _readerFactory;
     protected readonly WriterFactory _writerFactory;
+    protected IReader _reader;
     protected IWriter _writer;
 
     public Tool(IServiceProvider provider)
     {
-        _reader = provider.GetRequiredService<IReader>();
+        _readerFactory = provider.GetRequiredService<ReaderFactory>();
         _writerFactory = provider.GetRequiredService<WriterFactory>();
     }