refactor(BurnPdfCommandHandler): use IOptions<PDFBurnerParams> and improve form field handling

- Updated BurnPdfCommandHandler constructor to accept IOptions<PDFBurnerParams> instead of raw PDFBurnerParams.
- Updated AddFormFieldValue to calculate coordinates based on PDFBurnerParams offsets and margins.
- Added helper methods for converting pixels to inches (ToInches, ToPointF).
- Removed unused NotImplemented methods in AddFormFieldValue overload.
- Improved code readability and maintainability for annotation burning logic.

EnvelopeGenerator.Application/Common/Configurations/PDFBurnerParams.cs

@@ -1,5 +1,4 @@
-using System.Collections.Immutable;
-using System.Diagnostics.CodeAnalysis;
+using System.Diagnostics.CodeAnalysis;
 using System.Drawing;
 
 namespace EnvelopeGenerator.Application.Common.Configurations;

EnvelopeGenerator.Application/Pdf/BurnPdfCommand.cs

@@ -8,7 +8,9 @@ using GdPicture14;
 using MediatR;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using Newtonsoft.Json;
+using System.Drawing;
 
 namespace EnvelopeGenerator.Application.Pdf;
 
@@ -42,9 +44,9 @@ public class BurnPdfCommandHandler : IRequestHandler<BurnPdfCommand>
     /// <param name="manager"></param>
     /// <param name="signRepo"></param>
     /// <param name="logger"></param>
-    public BurnPdfCommandHandler(PDFBurnerParams pdfBurnerParams, AnnotationManager manager, IRepository<Signature> signRepo, ILogger<BurnPdfCommandHandler> logger)
+    public BurnPdfCommandHandler(IOptions<PDFBurnerParams> pdfBurnerParams, AnnotationManager manager, IRepository<Signature> signRepo, ILogger<BurnPdfCommandHandler> logger)
     {
-        _pdfBurnerParams = pdfBurnerParams;
+        _pdfBurnerParams = pdfBurnerParams.Value;
         _manager = manager;
         _signRepo = signRepo;
         _logger = logger;
@@ -252,12 +254,25 @@ public class BurnPdfCommandHandler : IRequestHandler<BurnPdfCommand>
         }
     }
 
-    private void AddFormFieldValue(double x, double y, double width, double height, int page, string value)
+    private void AddFormFieldValue(Annotation pAnnotation, FormFieldValue formFieldValue)
     {
-        _manager.SelectPage(page);
+        var ffIndex = _pdfBurnerParams.IndexOfAnnot[pAnnotation.EgName];
+  
+        // Convert pixels to Inches
+        var oBounds = pAnnotation.Bbox?.Select(ToInches).ToList();
+
+        if (oBounds is null || oBounds.Count < 4)
+            return;
+
+        double oX = oBounds[0];
+        double oY = oBounds[1] + _pdfBurnerParams.YOffset * ffIndex + _pdfBurnerParams.TopMargin;
+        double oWidth = oBounds[2];
+        double oHeight = oBounds[3];
+
+        _manager.SelectPage(pAnnotation.PageIndex + 1);
 
         // Add the text annotation
-        var ant = _manager.AddTextAnnot((float)x, (float)y, (float)width, (float)height, value);
+        var ant = _manager.AddTextAnnot((float)oX, (float)oY, (float)oWidth, (float)oHeight, formFieldValue.Value);
 
         // Set the font properties
         ant.FontName = _pdfBurnerParams.FontName;
@@ -267,11 +282,6 @@ public class BurnPdfCommandHandler : IRequestHandler<BurnPdfCommand>
         _manager.SaveAnnotationsToPage();
     }
 
-    private void AddFormFieldValue(Annotation pAnnotation, FormFieldValue formFieldValue)
-    {
-        throw new NotImplementedException();
-    }
-
     private void AddImageAnnotation(double x, double y, double width, double height, int page, string base64)
     {
         throw new NotImplementedException();
@@ -292,6 +302,24 @@ public class BurnPdfCommandHandler : IRequestHandler<BurnPdfCommand>
         throw new NotImplementedException();
     }
 
+    #region Helpers
+    private PointF ToPointF(List<float> pPoints)
+    {
+        var oPoints = pPoints.Select(ToInches).ToList();
+        return new PointF(oPoints[0], oPoints[1]);
+    }
+
+    private double ToInches(double pValue)
+    {
+        return pValue / 72.0;
+    }
+
+    private float ToInches(float pValue)
+    {
+        return pValue / 72f;
+    }
+    #endregion
+
     /// <summary>
     /// 
     /// </summary>