feat: add document preview

scripts/test.ps1

@@ -1,3 +1,3 @@
 $ErrorActionPreference = "Stop"
 
-dotnet test --no-build --logger "console;verbosity=detailed"
+dotnet test --logger "console;verbosity=detailed"

src/TextForge.Core/Documents/DocumentContent.cs

@@ -0,0 +1,3 @@
+namespace TextForge.Core.Documents;
+
+public record DocumentContent(string Text);

src/TextForge.Core/Documents/TextTemplate.cs

@@ -0,0 +1,6 @@
+namespace TextForge.Core.Documents;
+
+public class TextTemplate
+{
+    public string Title { get; } = "TextForge";
+}

src/TextForge.Core/PdfService.cs

@@ -1,22 +1,27 @@
 using QuestPDF.Fluent;
 using QuestPDF.Helpers;
 using QuestPDF.Infrastructure;
+using TextForge.Core.Documents;
 
 namespace TextForge.Core;
 
 public static class PdfService
 {
-    public static void CreatePdf(string text, string path)
+    public static void CreatePdf(DocumentContent document, TextTemplate template, string path)
     {
         QuestPDF.Settings.License = LicenseType.Community;
 
         Document.Create(container =>
         {
             container.Page(page =>
             {
-                page.Content().Text(text);
+                page.Content().Column(column =>
+                {
+                    column.Item().Text(template.Title);
+                    column.Item().Text(document.Text);
+                });
             });
         })
         .GeneratePdf(path);
     }
-}
+}

src/TextForge.Core/Preview/PreviewRenderer.cs

@@ -0,0 +1,5 @@
+namespace TextForge.Core.Preview;
+
+public record PreviewDocument(
+    string Title,
+    string Text);

src/TextForge.Desktop/Views/MainWindow.axaml

@@ -15,16 +15,54 @@
         <vm:MainViewModel />
     </Design.DataContext>
 
-    <StackPanel Margin="20" Spacing="10">
-        <TextBox
-            Name="InputText"
-            AcceptsReturn="True"
-            Height="300"/>
+    <Grid
+    Margin="20"
+    RowDefinitions="*,Auto"
+    ColumnDefinitions="*,*"
+    ColumnSpacing="20"
+    RowSpacing="10">
 
-        <Button
+    <!-- Input -->
+    <TextBox
+        Grid.Row="0"
+        Grid.Column="0"
+        Name="InputText"
+        AcceptsReturn="True"/>
+
+    <!-- Preview -->
+    <Border
+        Grid.Row="0"
+        Grid.Column="1"
+        Background="White"
+        Padding="30"
+        BorderBrush="Gray"
+        BorderThickness="1">
+
+        <StackPanel Spacing="10">
+            <TextBlock
+                Text="TextForge"
+                FontSize="24"
+                FontWeight="Bold"/>
+
+            <Border
+                Height="1"
+                Background="Gray"/>
+
+            <TextBlock
+                Name="PreviewText"
+                TextWrapping="Wrap"/>
+        </StackPanel>
+
+    </Border>
+
+    <!-- Existing button -->
+    <Button
+            Grid.Row="1"
+            Grid.ColumnSpan="2"
             Name="ConvertButton"
             Content="Convert to PDF"
             Click="ConvertButton_Click"/>
-    </StackPanel>
+
+    </Grid>
 
 </Window>

src/TextForge.Desktop/Views/MainWindow.axaml.cs

@@ -1,19 +1,32 @@
 using Avalonia.Controls;
 using TextForge.Core;
-
 namespace TextForge.Desktop.Views;
-
+using TextForge.Core.Preview;
+using TextForge.Core.Documents;
 public partial class MainWindow : Window
 {
     public MainWindow()
     {
         InitializeComponent();
     }
 
-    private void ConvertButton_Click(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
+    private void ConvertButton_Click(
+        object? sender,
+        Avalonia.Interactivity.RoutedEventArgs e)
     {
         var textBox = this.FindControl<TextBox>("InputText");
 
-        PdfService.CreatePdf(textBox!.Text ?? "", "output.pdf");
+        var document = new DocumentContent(textBox!.Text ?? "");
+        var template = new TextTemplate();
+
+        var preview = new PreviewDocument(
+            template.Title,
+            document.Text);
+
+        var previewText = this.FindControl<TextBlock>("PreviewText");
+
+        previewText!.Text = preview.Text;
+
+        PdfService.CreatePdf(document, template, "output.pdf");
     }
-}
+}

tests/TextForge.Tests/PdfServiceTests.cs

@@ -2,6 +2,7 @@
 
 namespace TextForge.Tests;
 
+using TextForge.Core.Documents;
 using UglyToad.PdfPig;
 
 public class PdfServiceTests
@@ -15,7 +16,9 @@ public void CreatePdf_CreatesFile()
             $"{Guid.NewGuid()}.pdf");
 
         // Act
-        PdfService.CreatePdf("Hello World", path);
+        DocumentContent document = new DocumentContent("Hello World");
+        TextTemplate template = new TextTemplate();
+        PdfService.CreatePdf(document, template, path);
 
         // Assert
         Assert.True(File.Exists(path));
@@ -32,15 +35,18 @@ public void CreatePdf_ContentIsCorrect()
             Path.GetTempPath(),
             $"{Guid.NewGuid()}.pdf");
 
-        PdfService.CreatePdf(text, path);
+        DocumentContent document = new DocumentContent(text);
+        TextTemplate template = new TextTemplate();
+        PdfService.CreatePdf(document, template, path);
 
-        using var document = PdfDocument.Open(path);
+        using var pdfDocument = PdfDocument.Open(path);
 
-        var page = document.GetPage(1);
+        var page = pdfDocument.GetPage(1);
 
-        Assert.Equal(text, page.Text);
+        Assert.Contains(text, page.Text);
+        Assert.Contains(template.Title, page.Text);
         // Cleanup
         File.Delete(path);
     }
-    
+
 }