Update app.py

app.py

@@ -54,46 +54,46 @@ def highlight_relevant_text(context, start, end):
     return highlighted_text
 
 def find_system_font():
-    # Search common directories for TrueType fonts
+    # Adjust this function to find a suitable font
     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)
+        ttf_files = glob.glob(os.path.join(font_dir, "**/NotoSans*.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.")
+            return ttf_files[0]  # Return the first found NotoSans font
+    raise FileNotFoundError("No suitable 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)
+    # Find and use a comprehensive Unicode font like NotoSans
     font_path = find_system_font()
-    pdf.add_font("SystemFont", "", font_path)
-    pdf.set_font("SystemFont", size=12)
+    pdf.add_font("NotoSans", "", font_path)
+    pdf.set_font("NotoSans", size=12)
 
     pdf.multi_cell(0, 10, f"Question: {question}")
     pdf.ln()
 
-    pdf.set_font("SystemFont", size=12)
+    pdf.set_font("NotoSans", size=12)
     pdf.multi_cell(0, 10, f"Answer: {answer}")
     pdf.ln()
 
-    pdf.set_font("SystemFont", size=12)
+    pdf.set_font("NotoSans", size=12)
     pdf.multi_cell(0, 10, f"Confidence Score: {score}")
     pdf.ln()
 
-    pdf.set_font("SystemFont", size=12)
+    pdf.set_font("NotoSans", size=12)
     pdf.multi_cell(0, 10, f"Score Explanation: {score_explanation}")
     pdf.ln()
 
-    pdf.set_font("SystemFont", size=12)
+    pdf.set_font("NotoSans", size=12)
     pdf.multi_cell(0, 10, "Highlighted Context:")
     pdf.ln()
-    pdf.set_font("SystemFont", size=10)
+    pdf.set_font("NotoSans", size=10)
     pdf.multi_cell(0, 10, highlighted_context)
     pdf.ln()
 
-    # Decode and save the score chart image to a temporary file
+    # Handle the image as a temporary file
     score_chart_image = io.BytesIO(base64.b64decode(score_chart))
     with tempfile.NamedTemporaryFile(delete=False, suffix='.png') as tmpfile:
         tmpfile.write(score_chart_image.read())