Update app.py

app.py

@@ -8,6 +8,7 @@ import base64
 import torch
 from fpdf import FPDF
 import os
+import glob
 
 # Preload models
 models = {
@@ -51,33 +52,43 @@ def highlight_relevant_text(context, start, end):
     )
     return highlighted_text
 
+def find_system_font():
+    # Search common directories for TrueType fonts
+    font_dirs = ["/usr/share/fonts", "/usr/local/share/fonts"]
+    for font_dir in font_dirs:
+        ttf_files = glob.glob(os.path.join(font_dir, "**/*.ttf"), recursive=True)
+        if ttf_files:
+            return ttf_files[0]  # Return the first found font
+    raise FileNotFoundError("No TTF font file found in system font directories.")
+
 def generate_pdf_report(question, answer, score, score_explanation, score_chart, highlighted_context):
     pdf = FPDF()
     pdf.add_page()
 
-    # Add the Unicode font (e.g., DejaVuSans)
-    pdf.add_font("DejaVu", "", os.path.join("fonts", "DejaVuSans.ttf"), uni=True)
-    pdf.set_font("DejaVu", size=12)
+    # Find a system font
+    font_path = find_system_font()
+    pdf.add_font("SystemFont", "", font_path)  # Use the found system font
+    pdf.set_font("SystemFont", size=12)
 
     pdf.multi_cell(0, 10, f"Question: {question}")
     pdf.ln()
 
-    pdf.set_font("DejaVu", size=12)
+    pdf.set_font("SystemFont", size=12)
     pdf.multi_cell(0, 10, f"Answer: {answer}")
     pdf.ln()
 
-    pdf.set_font("DejaVu", size=12)
+    pdf.set_font("SystemFont", size=12)
     pdf.multi_cell(0, 10, f"Confidence Score: {score}")
     pdf.ln()
 
-    pdf.set_font("DejaVu", size=12)
+    pdf.set_font("SystemFont", size=12)
     pdf.multi_cell(0, 10, f"Score Explanation: {score_explanation}")
     pdf.ln()
 
-    pdf.set_font("DejaVu", size=12)
+    pdf.set_font("SystemFont", size=12)
     pdf.multi_cell(0, 10, "Highlighted Context:")
     pdf.ln()
-    pdf.set_font("DejaVu", size=10)
+    pdf.set_font("SystemFont", size=10)
     pdf.multi_cell(0, 10, highlighted_context)
     pdf.ln()