Update app.py

app.py

@@ -12,7 +12,9 @@ import tempfile
 from reportlab.pdfgen import canvas
 from reportlab.lib.pagesizes import letter
 from reportlab.pdfbase import pdfmetrics
-from reportlab.pdfbase.ttfonts import TTFont
+from reportlab.lib.styles import getSampleStyleSheet
+from reportlab.platypus import SimpleDocTemplate, Paragraph
+
 from PyPDF2 import PdfReader, PdfWriter
 
 from hugchat import hugchat
@@ -120,6 +122,20 @@ API_URL = "https://api-inference.huggingface.co/models/stabilityai/stable-diffus
 #Textgenerierung
 API_URL_TEXT = "https://api-inference.huggingface.co/models/argilla/notux-8x7b-v1"
 
+###############################################
+# Formatierung im PDF - Konstanten setzen
+# Breite und Höhe für Spalten
+COLUMN_WIDTH = 150
+ROW_HEIGHT = 20
+# Bereiche für Spalten
+TIMESTAMP_X = 50
+USER_X = TIMESTAMP_X + COLUMN_WIDTH
+ASSISTANT_X = USER_X + COLUMN_WIDTH
+# Rand und Abstand zwischen Zeilen
+MARGIN = 50
+LINE_SPACING = 10
+
+
 
 ################################################
 #HF Hub Zugriff ermöglichen
@@ -198,30 +214,14 @@ def clear_all(history, uploaded_file_paths, chats):
     memoryFile = io.BytesIO()
     # Erstelle eine Canvas-Instanz im Bytestream
     c = canvas.Canvas(memoryFile, pagesize=letter)  #oder A4
-
-    #Inhalt des PDF formatieren:
-    # Schriftarten
-    TITLE_FONT = Font(Family="Times-Bold", Size=14)
-    TEXT_FONT = Font(Family="Courier", Size=12)
-    CODE_FONT = Font(Family="Monaco", Size=12)
-    # Breite und Höhe für Spalten
-    COLUMN_WIDTH = 150
-    ROW_HEIGHT = 20
-    # Bereiche für Spalten
-    TIMESTAMP_X = 50
-    USER_X = TIMESTAMP_X + COLUMN_WIDTH
-    ASSISTANT_X = USER_X + COLUMN_WIDTH
-    # Rand und Abstand zwischen Zeilen
-    MARGIN = 50
-    LINE_SPACING = 10
     # Zeitstempel
     c.setFillColorRGB(0, 0, 0)
-    c.setFont(TITLE_FONT)
+    c.setFont("Times-Bold", 14) 
     c.drawCentredString(TIMESTAMP_X + COLUMN_WIDTH / 2, MARGIN, chat_history["timestamp"])
     # User und Assistant
-    c.setFont(TEXT_FONT)
+    c.setFont("Courier", 12) 
     c.drawString(USER_X, MARGIN + LINE_SPACING, chat_history["user"] + ": ")
-    c.setFont(CODE_FONT)
+    c.setFont("Monaco", 14) 
     c.drawString(USER_X + COLUMN_WIDTH, MARGIN + LINE_SPACING, chat_history["assistant"])
     # Linie trennen
     c.line(TIMESTAMP_X, MARGIN + LINE_SPACING + ROW_HEIGHT, ASSISTANT_X + COLUMN_WIDTH, MARGIN + LINE_SPACING + ROW_HEIGHT)