fix: update version

- Replace the checkbox "Générer uniquement des multiplications" with radio buttons for "Multiplications uniquement" and "Multiplications ET divisions"
- Update JavaScript code to handle radio button values instead of checkbox
- Maintain backward compatibility with old localStorage format
- Ensure all functionality remains intact

.sops.yaml

@@ -0,0 +1,5 @@
+creation_rules:
+  - path_regex: .*
+    pgp: >-
+      7120085E6161EB9ABC2FD0117C26F0446A4D9603,
+      E21007D7E97694AC900FF3434C6659F378169546

Dockerfile

@@ -1,28 +1,25 @@
-# Use Python 3.11 slim image as base
-FROM python:3.11-slim
+# Use Python 3.13 slim image as base
+FROM python:3.14-slim AS builder
 
 # Set working directory
 WORKDIR /app
 
-# Set environment variables
-ENV PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONUNBUFFERED=1 \
-    POETRY_NO_INTERACTION=1 \
-    POETRY_VENV_IN_PROJECT=1 \
-    POETRY_CACHE_DIR=/tmp/poetry_cache
-
-# Install system dependencies
-RUN apt-get update && apt-get install -y \
-    build-essential \
-    curl \
-    && rm -rf /var/lib/apt/lists/*
+# Create and set pip cache directory
+ENV PIP_CACHE_DIR=/root/.cache/pip
 
 # Copy requirements file
 COPY requirements.txt .
 
-# Install Python dependencies
-RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
+# Install Python dependencies with bind-mounted cache
+RUN --mount=type=cache,id=pip,target=/root/.cache/pip \
+    pip install --no-deps \
+    --disable-pip-version-check \
+    --target=/app/site-packages \
+    -r requirements.txt
+
+FROM python:3.14-slim
+
+COPY --from=builder /app/site-packages /app/site-packages
 
 # Create a non-root user
 RUN adduser --disabled-password --gecos '' appuser
@@ -31,8 +28,11 @@ RUN adduser --disabled-password --gecos '' appuser
 COPY ./app /app/app
 COPY ./generate_math_exercises.py /app/
 
-# Change ownership of the app directory to the non-root user
-RUN chown -R appuser:appuser /app
+ENV PYTHONPATH=/app/site-packages
+ENV PATH=/app/site-packages/bin:/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+# Set working directory
+WORKDIR /app
 
 # Switch to non-root user
 USER appuser
@@ -40,9 +40,5 @@ USER appuser
 # Expose port
 EXPOSE 8000
 
-# Health check
-HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
-    CMD curl -f http://localhost:8000/ || exit 1
-
 # Run the application
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]

app/gen_op.py

@@ -0,0 +1,108 @@
+#!/usr/bin/env python3
+import random
+from fpdf import FPDF
+
+
+def generer_nombre():
+    """Génère un nombre naturel entre 1 et 9"""
+    return random.randint(1, 9)
+
+
+def evaluer_expression(expr):
+    """Évalue une expression mathématique en remplaçant × par *"""
+    try:
+        # Remplacer × par * pour l'évaluation
+        expr_eval = expr.replace("×", "*")
+        return eval(expr_eval)
+    except Exception:
+        return -1  # En cas d'erreur, considérer comme négatif
+
+
+def generer_expression():
+    """Génère une expression aléatoire respectant les contraintes"""
+    # On choisit aléatoirement un type d'expression (avec ou sans parenthèses)
+    # On vérifie que le résultat est positif
+    expressions_positives = [
+        lambda: f"({generer_nombre()} + {generer_nombre()}) × {generer_nombre()} - {generer_nombre()}",
+        lambda: f"{generer_nombre()} + {generer_nombre()} × {generer_nombre()} - {generer_nombre()}",
+        lambda: f"({generer_nombre()} + {generer_nombre()}) × ({generer_nombre()} + {generer_nombre()})",
+        lambda: f"{generer_nombre()} + {generer_nombre()} × {generer_nombre()} - {generer_nombre()} + {generer_nombre()}",
+        lambda: f"({generer_nombre()} + {generer_nombre()}) × {generer_nombre()} - {generer_nombre()} + {generer_nombre()}",
+        lambda: f"{generer_nombre()} × {generer_nombre()} + {generer_nombre()} - {generer_nombre()} × {generer_nombre()}",
+        lambda: f"({generer_nombre()} + {generer_nombre()}) + {generer_nombre()} × {generer_nombre()} - {generer_nombre()}",
+        lambda: f"{generer_nombre()} + {generer_nombre()} × ({generer_nombre()} + {generer_nombre()}) - {generer_nombre()}",
+        lambda: f"({generer_nombre()} + {generer_nombre()}) + {generer_nombre()} × {generer_nombre()} - {generer_nombre()}",
+        lambda: f"{generer_nombre()} × ({generer_nombre()} + {generer_nombre()}) + {generer_nombre()} - {generer_nombre()}",
+        lambda: f"{generer_nombre()} + {generer_nombre()} × {generer_nombre()} - {generer_nombre()} × {generer_nombre()} + {generer_nombre()}",
+        lambda: f"({generer_nombre()} + {generer_nombre()}) × {generer_nombre()} - {generer_nombre()} + {generer_nombre()} - {generer_nombre()}",
+    ]
+
+    # Essayer jusqu'à ce qu'on obtienne une expression avec résultat positif
+    while True:
+        choix = random.choice(expressions_positives)
+        expr = choix()
+        resultat = evaluer_expression(expr)
+        if resultat >= 0:
+            return expr
+
+
+def generer_feuille_exercices(n_exercices=20):
+    """Génère une feuille d'exercices en format 2 colonnes"""
+    expressions = [generer_expression() for _ in range(n_exercices)]
+
+    # Format 2 colonnes : on affiche par paires
+    output = ""
+    for i in range(0, n_exercices, 2):
+        expr1 = f"{i + 1}.  {expressions[i]}"
+        expr2 = f"{i + 2}.  {expressions[i + 1]}" if i + 1 < len(expressions) else ""
+        # Alignement pour deux colonnes
+        output += f"{expr1:<36} {expr2}\n" + " " * 36 + " \n" * 3
+    return output
+
+
+def generer_pdf_exercices_en_memoire(n_exercices=20):
+    """Génère une feuille d'exercices au format PDF en mémoire"""
+    pdf = FPDF()
+    pdf.add_page()
+    pdf.set_font("Helvetica", size=12)
+
+    # Titre
+    pdf.cell(
+        200,
+        10,
+        text="Feuille d'exercices d'opérations",
+        new_x="LMARGIN",
+        new_y="NEXT",
+        align="C",
+    )
+    pdf.ln(10)
+
+    # Contenu en 2 colonnes
+    expressions = [generer_expression() for _ in range(n_exercices)]
+
+    for i in range(0, n_exercices, 2):
+        # Colonne 1
+        expr1 = f"{i + 1}.  {expressions[i]}"
+        pdf.cell(90, 10, text=expr1, border=0, align="L")
+
+        # Colonne 2
+        if i + 1 < len(expressions):
+            expr2 = f"{i + 2}.  {expressions[i + 1]}"
+            pdf.cell(90, 10, text=expr2, border=0, align="L")
+        pdf.ln(10)
+
+        # Espacement supplémentaire - ajout de deux lignes vides supplémentaires
+        pdf.ln(15)
+
+    # Retourner les données PDF en mémoire
+    return pdf.output()
+
+
+def generer_pdf_exercices(n_exercices=20, output_file="exercices.pdf"):
+    """Génère une feuille d'exercices au format PDF"""
+    pdf_data = generer_pdf_exercices_en_memoire(n_exercices)
+
+    # Sauvegarde du PDF
+    with open(output_file, "wb") as f:
+        f.write(pdf_data)
+    return output_file

app/main.py

@@ -1,12 +1,9 @@
 #!/usr/bin/env python3
 import json
 import random
-import os
 import io
-import boto3
 import zipfile
 import tempfile
-from botocore.exceptions import ClientError
 from typing import List
 from fastapi import FastAPI, Request, Form
 from fastapi.responses import HTMLResponse, RedirectResponse, StreamingResponse
@@ -14,55 +11,37 @@ from fastapi.templating import Jinja2Templates
 from pydantic import BaseModel
 from fpdf import FPDF
 
+import logging
+
+# Import the functions from gen_op.py
+from app.gen_op import generer_pdf_exercices_en_memoire
+
+# Import S3 functions
+from app.s3_utils import (
+    S3_BUCKET_NAME,
+    create_bucket_if_not_exists,
+    upload_to_s3,
+    download_from_s3,
+    list_objects_in_s3,
+    delete_from_s3,
+)
+
+
+# Custom filter to exclude health check logs
+class HealthCheckFilter(logging.Filter):
+    def filter(self, record: logging.LogRecord) -> bool:
+        # Exclude health check requests from logs
+        return "GET /health " not in record.getMessage()
+
+
+# Apply the filter to Uvicorn's access logger
+logging.getLogger("uvicorn.access").addFilter(HealthCheckFilter())
+
 app = FastAPI()
 
-# S3 Configuration
-S3_BUCKET_NAME = os.environ.get("S3_BUCKET_NAME", "math-exercises")
-
 templates = Jinja2Templates(directory="app/templates")
 
 
-def get_s3_client():
-    """Create and return an S3 client using environment variables"""
-    s3_access_key = os.environ.get("S3_ACCESS_KEY")
-    s3_secret_key = os.environ.get("S3_SECRET_KEY")
-    s3_host_base = os.environ.get("S3_HOST_BASE")
-
-    if not all([s3_access_key, s3_secret_key, s3_host_base]):
-        raise ValueError("S3 environment variables not properly set")
-
-    s3 = boto3.client(
-        "s3",
-        aws_access_key_id=s3_access_key,
-        aws_secret_access_key=s3_secret_key,
-        endpoint_url=s3_host_base,
-        region_name="us-east-1",  # Required but unused for Infomaniak
-    )
-    return s3
-
-
-def create_bucket_if_not_exists(bucket_name):
-    """Create S3 bucket if it doesn't exist"""
-    s3_client = get_s3_client()
-
-    try:
-        s3_client.head_bucket(Bucket=bucket_name)
-    except ClientError as e:
-        error_code = int(e.response["Error"]["Code"])
-        if error_code == 404:
-            # Bucket doesn't exist, create it
-            try:
-                s3_client.create_bucket(Bucket=bucket_name)
-                print(f"Bucket {bucket_name} created successfully")
-            except ClientError as create_error:
-                print(f"Error creating bucket: {create_error}")
-                raise
-        else:
-            # Some other error
-            print(f"Error checking bucket: {e}")
-            raise
-
-
 # Create bucket on startup
 try:
     create_bucket_if_not_exists(S3_BUCKET_NAME)
@@ -70,67 +49,6 @@ except Exception as e:
     print(f"Warning: Could not create/check S3 bucket: {e}")
 
 
-def upload_to_s3(file_data, bucket_name, object_name, content_type="application/pdf"):
-    """Upload file data to S3 bucket"""
-    s3_client = get_s3_client()
-
-    try:
-        s3_client.put_object(
-            Bucket=bucket_name,
-            Key=object_name,
-            Body=file_data,
-            ContentType=content_type,
-        )
-        return True
-    except ClientError as e:
-        print(f"Error uploading to S3: {e}")
-        return False
-
-
-def download_from_s3(bucket_name, object_name):
-    """Download file data from S3 bucket"""
-    s3_client = get_s3_client()
-
-    try:
-        response = s3_client.get_object(Bucket=bucket_name, Key=object_name)
-        return response["Body"].read()
-    except ClientError as e:
-        print(f"Error downloading from S3: {e}")
-        return None
-
-
-def list_objects_in_s3(bucket_name):
-    """List all objects in S3 bucket (sorted from newest to oldest)"""
-    s3_client = get_s3_client()
-
-    try:
-        response = s3_client.list_objects_v2(Bucket=bucket_name)
-        if "Contents" in response:
-            # Filter for PDF files only and sort by last modified (newest first)
-            pdf_files = [
-                obj for obj in response["Contents"] if obj["Key"].endswith(".pdf")
-            ]
-            pdf_files.sort(key=lambda x: x["LastModified"], reverse=True)
-            return pdf_files
-        else:
-            return []
-    except ClientError as e:
-        print(f"Error listing objects in S3: {e}")
-        return []
-
-
-def delete_from_s3(bucket_name, object_name):
-    """Delete file from S3 bucket"""
-    s3_client = get_s3_client()
-
-    try:
-        s3_client.delete_object(Bucket=bucket_name, Key=object_name)
-        return True
-    except ClientError as e:
-        print(f"Error deleting from S3: {e}")
-        return False
-
-
 class MathExercisesPDF(FPDF):
     def header(self):
         self.set_font("Helvetica", "B", 16)
@@ -146,22 +64,25 @@ class MathExercisesPDF(FPDF):
         )
         self.ln(10)
 
-    def footer(self):
-        self.set_y(-15)
-        self.set_font("Helvetica", "I", 8)
-        self.cell(
-            0, 10, f"Page {self.page_no()}", 0, 0, "C", new_x="RIGHT", new_y="TOP"
-        )
-
 
 class ExerciseRequest(BaseModel):
     min_table: int
     max_table: int
     num_exercises: int = 15
+    multiplication_only: bool = False
+    max_first_operand: int = 12  # New parameter for the maximum value of the first operand
+
+
+class OperationExerciseRequest(BaseModel):
+    num_exercises: int = 20
 
 
 def generate_exercises(
-    min_table: int, max_table: int, num_exercises: int = 15
+    min_table: int,
+    max_table: int,
+    num_exercises: int = 15,
+    multiplication_only: bool = False,
+    max_first_operand: int = 12,  # New parameter for the maximum value of the first operand
 ) -> List[str]:
     """Génère des exercices de multiplication et division aléatoires mélangés sans doublons"""
     exercises: List[str] = []
@@ -174,23 +95,28 @@ def generate_exercises(
     while len(exercises) < num_exercises and attempts < max_attempts:
         attempts += 1
 
-        # Choisir deux nombres aléatoires entre min_table et max_table
-        a = random.randint(min_table, max_table)
-        b = random.randint(min_table, max_table)
-        result = a * b
-
-        # Choisir aléatoirement le type d'exercice (seulement multiplication ou division)
-        exercise_type = random.choice(["multiplication", "division"])
-
-        if exercise_type == "multiplication":
+        # Pour les multiplications, un des opérandes est entre 1 et max_first_operand
+        # et l'autre est entre min_table et max_table
+        if multiplication_only or random.choice([True, False]):
             # Exercice de multiplication
-            operation_key = f"mult_{a}_{b}"  # Clé unique pour cette opération
+            a = random.randint(1, max_first_operand)  # Premier opérande entre 1 et max_first_operand
+            b = random.randint(min_table, max_table)  # Second opérande entre min_table et max_table
+            
+            # Randomize the order of operands
+            if random.choice([True, False]):
+                a, b = b, a
+                
+            result = a * b
+            operation_key = f"mult_{min(a,b)}_{max(a,b)}"  # Clé unique pour cette opération (order-independent)
             if operation_key not in used_operations:
                 exercise = f"{a} · {b} = ____"
                 exercises.append(exercise)
                 used_operations.add(operation_key)
-        else:  # division
+        elif not multiplication_only:  # division
             # Exercice de division
+            a = random.randint(min_table, max_table)
+            b = random.randint(min_table, max_table)
+            result = a * b
             divisor = random.choice([a, b])
             operation_key = f"div_{result}_{divisor}"  # Clé unique pour cette opération
             if operation_key not in used_operations:
@@ -204,18 +130,33 @@ def generate_exercises(
         remaining = num_exercises - len(exercises)
         for _ in range(remaining):
             # Générer des variations avec des nombres légèrement différents
-            a = random.randint(min_table, max_table)
-            b = random.randint(min_table, max_table)
-            result = a * b
-
-            # Choisir aléatoirement le type d'exercice
-            exercise_type = random.choice(["multiplication", "division"])
-
-            if exercise_type == "multiplication":
+            # Pour les multiplications, un des opérandes est entre 1 et max_first_operand
+            # et l'autre est entre min_table et max_table
+            if multiplication_only or random.choice([True, False]):
+                # Exercice de multiplication
+                a = random.randint(1, max_first_operand)  # Premier opérande entre 1 et max_first_operand
+                b = random.randint(min_table, max_table)  # Second opérande entre min_table et max_table
+                
+                # Randomize the order of operands
+                if random.choice([True, False]):
+                    a, b = b, a
+                    
+                result = a * b
                 exercise = f"{a} · {b} = ____"
-            else:  # division
+            elif not multiplication_only:  # division
+                a = random.randint(min_table, max_table)
+                b = random.randint(min_table, max_table)
+                result = a * b
                 divisor = random.choice([a, b])
                 exercise = f"{result} : {divisor} = ____"
+            else:
+                # Fallback to multiplication if multiplication_only is True
+                a = random.randint(1, max_first_operand)
+                b = random.randint(min_table, max_table)
+                # Randomize the order of operands
+                if random.choice([True, False]):
+                    a, b = b, a
+                exercise = f"{a} · {b} = ____"
 
             exercises.append(exercise)
 
@@ -223,7 +164,11 @@ def generate_exercises(
 
 
 def create_math_exercises_pdf(
-    min_table: int, max_table: int, num_exercises: int = 15
+    min_table: int,
+    max_table: int,
+    num_exercises: int = 15,
+    multiplication_only: bool = False,
+    max_first_operand: int = 12,  # New parameter for the maximum value of the first operand
 ) -> str:
     """Crée un fichier PDF avec des exercices de mathématiques mélangés en 3 colonnes et l'upload sur S3"""
     import datetime
@@ -232,14 +177,24 @@ def create_math_exercises_pdf(
     timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
 
     # Ajouter des informations sur la plage de tables
-    if min_table == max_table:
-        table_info = f"Tables de multiplication et division pour {min_table}"
-        pdf_filename = f"exercices_mathematiques_table_{min_table}_{num_exercises}_exercices_{timestamp}.pdf"
+    if multiplication_only:
+        if min_table == max_table:
+            table_info = f"Tables de multiplication seulement pour {min_table}"
+            pdf_filename = f"exercices_multiplication_seulement_table_{min_table}_{num_exercises}_exercices_{timestamp}.pdf"
+        else:
+            table_info = (
+                f"Tables de multiplication seulement de {min_table} à {max_table}"
+            )
+            pdf_filename = f"exercices_multiplication_seulement_tables_{min_table}_a_{max_table}_{num_exercises}_exercices_{timestamp}.pdf"
     else:
-        table_info = (
-            f"Tables de multiplication et division de {min_table} à {max_table}"
-        )
-        pdf_filename = f"exercices_mathematiques_tables_{min_table}_a_{max_table}_{num_exercises}_exercices_{timestamp}.pdf"
+        if min_table == max_table:
+            table_info = f"Tables de multiplication et division pour {min_table}"
+            pdf_filename = f"exercices_mathematiques_table_{min_table}_{num_exercises}_exercices_{timestamp}.pdf"
+        else:
+            table_info = (
+                f"Tables de multiplication et division de {min_table} à {max_table}"
+            )
+            pdf_filename = f"exercices_mathematiques_tables_{min_table}_a_{max_table}_{num_exercises}_exercices_{timestamp}.pdf"
 
     pdf = MathExercisesPDF()
     pdf.add_page()
@@ -249,7 +204,9 @@ def create_math_exercises_pdf(
     pdf.ln(5)
 
     # Générer les exercices
-    exercises = generate_exercises(min_table, max_table, num_exercises)
+    exercises = generate_exercises(
+        min_table, max_table, num_exercises, multiplication_only, max_first_operand
+    )
 
     # Pas d'en-têtes de colonnes
 
@@ -301,6 +258,28 @@ def create_math_exercises_pdf(
     return pdf_filename
 
 
+def create_operation_exercises_pdf(num_exercises: int = 20) -> str:
+    """Crée un fichier PDF avec des exercices d'opérations et l'upload sur S3"""
+    import datetime
+
+    # Add timestamp to filename
+    timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
+    pdf_filename = f"exercices_operations_{num_exercises}_exercices_{timestamp}.pdf"
+
+    # Generate PDF in memory using gen-op functions
+    pdf_data = generer_pdf_exercices_en_memoire(num_exercises)
+
+    # Upload to S3
+    upload_success = upload_to_s3(
+        pdf_data, S3_BUCKET_NAME, pdf_filename, "application/pdf"
+    )
+
+    if not upload_success:
+        raise Exception("Failed to upload PDF to S3")
+
+    return pdf_filename
+
+
 @app.get("/", response_class=HTMLResponse)
 async def read_root(request: Request):
     return templates.TemplateResponse("index.html", {"request": request})
@@ -319,7 +298,11 @@ async def generate_exercises_endpoint(request: ExerciseRequest):
             return {"error": "Le nombre d'exercices doit être supérieur à 0"}
 
         pdf_filename = create_math_exercises_pdf(
-            request.min_table, request.max_table, request.num_exercises
+            request.min_table,
+            request.max_table,
+            request.num_exercises,
+            request.multiplication_only,
+            request.max_first_operand,  # Pass the new parameter
         )
 
         # Return redirect to automatically download the file
@@ -329,6 +312,21 @@ async def generate_exercises_endpoint(request: ExerciseRequest):
         return {"error": f"Erreur lors de la création du PDF: {str(e)}"}
 
 
+@app.post("/generate-operations")
+async def generate_operation_exercises_endpoint(request: OperationExerciseRequest):
+    try:
+        if request.num_exercises < 1:
+            return {"error": "Le nombre d'exercices doit être supérieur à 0"}
+
+        pdf_filename = create_operation_exercises_pdf(request.num_exercises)
+
+        # Return redirect to automatically download the file
+        return RedirectResponse(url=f"/download/{pdf_filename}", status_code=303)
+
+    except Exception as e:
+        return {"error": f"Erreur lors de la création du PDF: {str(e)}"}
+
+
 @app.get("/download/{filename}")
 async def download_pdf(filename: str):
     # Download file from S3
@@ -464,6 +462,12 @@ async def bulk_download(filenames: str = Form(...)):
         return {"error": f"Error downloading files: {str(e)}"}
 
 
+@app.get("/health")
+async def health_check():
+    """Health check endpoint that returns the status of the application"""
+    return {"status": "healthy"}
+
+
 if __name__ == "__main__":
     import uvicorn
 

app/s3_utils.py

@@ -0,0 +1,116 @@
+#!/usr/bin/env python3
+import os
+import boto3
+from botocore.exceptions import ClientError
+from typing import List, Optional
+
+
+# S3 Configuration
+S3_BUCKET_NAME = os.environ.get("S3_BUCKET_NAME", "math-exercises")
+
+
+def get_s3_client():
+    """Create and return an S3 client using environment variables"""
+    s3_access_key = os.environ.get("S3_ACCESS_KEY")
+    s3_secret_key = os.environ.get("S3_SECRET_KEY")
+    s3_host_base = os.environ.get("S3_HOST_BASE")
+
+    if not all([s3_access_key, s3_secret_key, s3_host_base]):
+        raise ValueError("S3 environment variables not properly set")
+
+    s3 = boto3.client(
+        "s3",
+        aws_access_key_id=s3_access_key,
+        aws_secret_access_key=s3_secret_key,
+        endpoint_url=s3_host_base,
+        region_name="us-east-1",  # Required but unused for Infomaniak
+    )
+    return s3
+
+
+def create_bucket_if_not_exists(bucket_name: str):
+    """Create S3 bucket if it doesn't exist"""
+    s3_client = get_s3_client()
+
+    try:
+        s3_client.head_bucket(Bucket=bucket_name)
+    except ClientError as e:
+        error_code = int(e.response["Error"]["Code"])
+        if error_code == 404:
+            # Bucket doesn't exist, create it
+            try:
+                s3_client.create_bucket(Bucket=bucket_name)
+                print(f"Bucket {bucket_name} created successfully")
+            except ClientError as create_error:
+                print(f"Error creating bucket: {create_error}")
+                raise
+        else:
+            # Some other error
+            print(f"Error checking bucket: {e}")
+            raise
+
+
+def upload_to_s3(
+    file_data: bytes,
+    bucket_name: str,
+    object_name: str,
+    content_type: str = "application/pdf",
+) -> bool:
+    """Upload file data to S3 bucket"""
+    s3_client = get_s3_client()
+
+    try:
+        s3_client.put_object(
+            Bucket=bucket_name,
+            Key=object_name,
+            Body=file_data,
+            ContentType=content_type,
+        )
+        return True
+    except ClientError as e:
+        print(f"Error uploading to S3: {e}")
+        return False
+
+
+def download_from_s3(bucket_name: str, object_name: str) -> Optional[bytes]:
+    """Download file data from S3 bucket"""
+    s3_client = get_s3_client()
+
+    try:
+        response = s3_client.get_object(Bucket=bucket_name, Key=object_name)
+        return response["Body"].read()
+    except ClientError as e:
+        print(f"Error downloading from S3: {e}")
+        return None
+
+
+def list_objects_in_s3(bucket_name: str) -> List[dict]:
+    """List all objects in S3 bucket (sorted from newest to oldest)"""
+    s3_client = get_s3_client()
+
+    try:
+        response = s3_client.list_objects_v2(Bucket=bucket_name)
+        if "Contents" in response:
+            # Filter for PDF files only and sort by last modified (newest first)
+            pdf_files = [
+                obj for obj in response["Contents"] if obj["Key"].endswith(".pdf")
+            ]
+            pdf_files.sort(key=lambda x: x["LastModified"], reverse=True)
+            return pdf_files
+        else:
+            return []
+    except ClientError as e:
+        print(f"Error listing objects in S3: {e}")
+        return []
+
+
+def delete_from_s3(bucket_name: str, object_name: str) -> bool:
+    """Delete file from S3 bucket"""
+    s3_client = get_s3_client()
+
+    try:
+        s3_client.delete_object(Bucket=bucket_name, Key=object_name)
+        return True
+    except ClientError as e:
+        print(f"Error deleting from S3: {e}")
+        return False

app/templates/index.html

@@ -5,17 +5,42 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Générateur d'Exercices de Mathématiques</title>
     <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.0/font/bootstrap-icons.css" rel="stylesheet">
     <style>
+        :root {
+            --bs-body-bg: #ffffff;
+            --bs-body-color: #212529;
+            --bs-border-color: #dee2e6;
+            --bs-secondary-bg: #f8f9fa;
+            --bs-tertiary-bg: #ffffff;
+        }
+
+        [data-bs-theme="dark"] {
+            --bs-body-bg: #121212;
+            --bs-body-color: #e9ecef;
+            --bs-border-color: #495057;
+            --bs-secondary-bg: #212529;
+            --bs-tertiary-bg: #343a40;
+        }
+
+        body {
+            background-color: var(--bs-body-bg);
+            color: var(--bs-body-color);
+            transition: background-color 0.3s ease, color 0.3s ease;
+        }
+
         .card {
             box-shadow: 0 4px 8px rgba(0,0,0,0.1);
             transition: 0.3s;
             margin-bottom: 20px;
+            background-color: var(--bs-tertiary-bg);
+            border-color: var(--bs-border-color);
         }
         .card:hover {
             box-shadow: 0 8px 16px rgba(0,0,0,0.2);
         }
         .exercise-result {
-            background-color: #f8f9fa;
+            background-color: var(--bs-secondary-bg);
             border-radius: 5px;
             padding: 15px;
             margin-top: 20px;
@@ -25,22 +50,95 @@
             height: 3rem;
             margin-right: 0.75rem;
         }
+
+        .dark-mode-toggle {
+            position: fixed;
+            top: 20px;
+            right: 20px;
+            z-index: 1000;
+            border-radius: 50%;
+            width: 50px;
+            height: 50px;
+            border: none;
+            background-color: var(--bs-tertiary-bg);
+            color: var(--bs-body-color);
+            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+            transition: all 0.3s ease;
+        }
+
+        .dark-mode-toggle:hover {
+            transform: translateY(-2px);
+            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
+        }
+
+        [data-bs-theme="dark"] .bg-light {
+            background-color: var(--bs-secondary-bg) !important;
+        }
+
+        [data-bs-theme="dark"] .text-muted {
+            color: var(--bs-body-color) !important;
+            opacity: 0.7;
+        }
+
+        [data-bs-theme="dark"] .table {
+            --bs-table-bg: var(--bs-tertiary-bg);
+            --bs-table-striped-bg: var(--bs-secondary-bg);
+            --bs-table-hover-bg: var(--bs-border-color);
+        }
+
+        [data-bs-theme="dark"] .alert {
+            border-color: var(--bs-border-color);
+        }
+
+        [data-bs-theme="dark"] .form-control,
+        [data-bs-theme="dark"] .form-select {
+            background-color: var(--bs-tertiary-bg);
+            border-color: var(--bs-border-color);
+            color: var(--bs-body-color);
+        }
+
+        [data-bs-theme="dark"] .form-control:focus,
+        [data-bs-theme="dark"] .form-select:focus {
+            background-color: var(--bs-tertiary-bg);
+            border-color: var(--bs-primary);
+            color: var(--bs-body-color);
+            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
+        }
+
+        [data-bs-theme="dark"] .form-check-input {
+            background-color: var(--bs-tertiary-bg);
+            border-color: var(--bs-border-color);
+        }
+
+        [data-bs-theme="dark"] .form-check-input:checked {
+            background-color: var(--bs-primary);
+            border-color: var(--bs-primary);
+        }
+
+        .transition-all {
+            transition: all 0.3s ease;
+        }
     </style>
 </head>
 <body>
+    <!-- Dark Mode Toggle Button -->
+    <button class="dark-mode-toggle" id="darkModeToggle" title="Basculer le mode sombre" aria-label="Basculer le mode sombre">
+        <i class="bi bi-moon-fill" id="darkModeIcon"></i>
+    </button>
     <div class="container mt-5 mb-5">
         <div class="row justify-content-center">
             <div class="col-lg-8">
                 <div class="text-center mb-5">
                     <h1 class="display-4 fw-bold">Générateur d'Exercices de Mathématiques</h1>
-                    <p class="lead">Créez des exercices de multiplication et division personnalisés en PDF</p>
+                    <p class="lead">Créez des exercices de multiplication, division et opérations complexes personnalisés en PDF</p>
                 </div>
                 
                 
                 
+                <!-- Multiplication/Division Exercises Section -->
                 <div class="card">
                     <div class="card-body">
-                        <h5 class="card-title">Paramètres des Exercices</h5>
+                        <h5 class="card-title">Paramètres des Exercices (Multiplications/Divisions)</h5>
                         <form id="exerciseForm">
                             <div class="mb-3">
                                 <label for="minTable" class="form-label">Table minimale</label>
@@ -60,9 +158,35 @@
                                 <div class="form-text">Nombre total d'exercices à générer (entre 1 et 100)</div>
                             </div>
                             
+                            <div class="mb-3">
+                                <label class="form-label">Types d'exercices</label>
+                                <div class="form-check">
+                                    <input class="form-check-input" type="radio" name="exerciseType" id="multiplicationOnly" value="multiplication" checked>
+                                    <label class="form-check-label" for="multiplicationOnly">
+                                        Multiplications uniquement
+                                    </label>
+                                </div>
+                                <div class="form-check">
+                                    <input class="form-check-input" type="radio" name="exerciseType" id="multiplicationAndDivision" value="both">
+                                    <label class="form-check-label" for="multiplicationAndDivision">
+                                        Multiplications ET divisions
+                                    </label>
+                                </div>
+                            </div>
+                            
+                            <div class="mb-3">
+                                <label for="maxFirstOperand" class="form-label">Maximum du premier opérande</label>
+                                <select class="form-select" id="maxFirstOperand">
+                                    <option value="9">9 (Tables jusqu'à 9)</option>
+                                    <option value="10" selected>10 (Tables jusqu'à 10)</option>
+                                    <option value="12">12 (Tables jusqu'à 12)</option>
+                                </select>
+                                <div class="form-text">La valeur maximale pour le premier opérande dans les multiplications</div>
+                            </div>
+                            
                             <div class="d-grid">
                                 <button type="submit" class="btn btn-primary btn-lg" id="generateBtn">
-                                    <span id="buttonText">Générer le PDF</span>
+                                    <span id="buttonText">Générer le PDF (Mult/Div)</span>
                                     <span id="spinner" class="spinner-border spinner-border-sm d-none" role="status" aria-hidden="true"></span>
                                 </button>
                             </div>
@@ -70,6 +194,27 @@
                     </div>
                 </div>
                 
+                <!-- Operation Exercises Section -->
+                <div class="card mt-4">
+                    <div class="card-body">
+                        <h5 class="card-title">Paramètres des Exercices d'Opérations</h5>
+                        <form id="operationExerciseForm">
+                            <div class="mb-3">
+                                <label for="numOperationExercises" class="form-label">Nombre d'exercices</label>
+                                <input type="number" class="form-control" id="numOperationExercises" min="1" max="100" value="20" required>
+                                <div class="form-text">Nombre total d'exercices d'opérations à générer (entre 1 et 100)</div>
+                            </div>
+                            
+                            <div class="d-grid">
+                                <button type="submit" class="btn btn-success btn-lg" id="generateOperationBtn">
+                                    <span id="operationButtonText">Générer le PDF (Opérations)</span>
+                                    <span id="operationSpinner" class="spinner-border spinner-border-sm d-none" role="status" aria-hidden="true"></span>
+                                </button>
+                            </div>
+                        </form>
+                    </div>
+                </div>
+                
                 <!-- Existing PDFs Section -->
                 <div class="card mb-4">
                     <div class="card-body">
@@ -161,8 +306,40 @@
                                 </svg>
                             </div>
                             <div>
-                                <h5 class="fw-bold">Trois Colonnes</h5>
-                                <p>Les exercices sont présentés en trois colonnes pour économiser du papier.</p>
+                                <h5 class="fw-bold">Colonnes Variables</h5>
+                                <p>Les exercices de multiplication/division sont présentés en trois colonnes, les opérations complexes en deux colonnes.</p>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                
+                <div class="row mt-3">
+                    <div class="col-md-6">
+                        <div class="d-flex align-items-start">
+                            <div class="feature-icon bg-danger bg-opacity-10 rounded-circle d-flex align-items-center justify-content-center">
+                                <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" class="bi bi-calculator text-danger" viewBox="0 0 16 16">
+                                    <path d="M12 1a1 1 0 0 1 1 1v12a1 1 0 0 1-1 1H4a1 1 0 0 1-1-1V2a1 1 0 0 1 1-1h8zM4 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h8a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2H4z"/>
+                                    <path d="M4 2.5a.5.5 0 0 1 .5-.5h7a.5.5 0 0 1 .5.5v2a.5.5 0 0 1-.5.5h-7a.5.5 0 0 1-.5-.5v-2zm0 4a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5V6.5zm3 0a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5V6.5zm3 0a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5V6.5zm-6 3a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5V9.5zm3 0a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5V9.5zm3 0a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5V9.5zm-6 3a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5v-1zm3 0a.5.5 0 0 1 .5-.5h1a.5.5 0 0 1 .5.5v1a.5.5 0 0 1-.5.5h-1a.5.5 0 0 1-.5-.5v-1z"/>
+                                </svg>
+                            </div>
+                            <div>
+                                <h5 class="fw-bold">Opérations Complexes</h5>
+                                <p>Générez des exercices avec des expressions mathématiques complexes incluant parenthèses, additions, soustractions et multiplications.</p>
+                            </div>
+                        </div>
+                    </div>
+                    
+                    <div class="col-md-6">
+                        <div class="d-flex align-items-start">
+                            <div class="feature-icon bg-success bg-opacity-10 rounded-circle d-flex align-items-center justify-content-center">
+                                <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" class="bi bi-cloud-arrow-down text-success" viewBox="0 0 16 16">
+                                    <path fill-rule="evenodd" d="M7.646 10.854a.5.5 0 0 0 .708 0l2-2a.5.5 0 0 0-.708-.708L8.5 9.293V5.5a.5.5 0 0 0-1 0v3.793L6.354 8.146a.5.5 0 1 0-.708.708l2 2z"/>
+                                    <path d="M4.406 3.342A5.53 5.53 0 0 1 8 2c2.69 0 4.923 2 5.166 4.579C14.758 6.804 16 8.137 16 9.773 16 11.569 14.502 13 12.687 13H3.781C1.708 13 0 11.366 0 9.318c0-1.763 1.266-3.223 2.942-3.593.143-.863.698-1.723 1.464-2.383zm.653.757c-.757.653-1.153 1.44-1.153 2.056v.448l-.445.049C2.064 6.805 1 7.952 1 9.318 1 10.785 2.23 12 3.781 12h8.906C13.98 12 15 10.988 15 9.773c0-1.216-1.02-2.228-2.313-2.228h-.5v-.5C12.188 4.825 10.328 3 8 3a4.53 4.53 0 0 0-2.941 1.1z"/>
+                                </svg>
+                            </div>
+                            <div>
+                                <h5 class="fw-bold">Stockage Cloud</h5>
+                                <p>Tous les fichiers générés sont automatiquement stockés dans le cloud et peuvent être téléchargés ultérieurement.</p>
                             </div>
                         </div>
                     </div>
@@ -171,7 +348,7 @@
         </div>
     </div>
 
-    <footer class="bg-light text-center text-muted py-4 mt-5">
+    <footer class="bg-light text-center text-muted py-4 mt-5 transition-all">
         <div class="container">
             <p>Générateur d'Exercices de Mathématiques &copy; 2025</p>
         </div>
@@ -179,9 +356,125 @@
 
 <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js"></script>
     <script>
+        // Dark Mode Theme Management
+        class ThemeManager {
+            constructor() {
+                this.init();
+            }
+
+            init() {
+                // Load saved theme or detect system preference
+                const savedTheme = localStorage.getItem('theme');
+                const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+                const theme = savedTheme || systemTheme;
+                
+                this.setTheme(theme);
+
+                // Listen for system theme changes
+                window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', (e) => {
+                    if (!localStorage.getItem('theme')) {
+                        this.setTheme(e.matches ? 'dark' : 'light');
+                    }
+                });
+
+                // Setup toggle button
+                this.setupToggleButton();
+            }
+
+            setTheme(theme) {
+                document.documentElement.setAttribute('data-bs-theme', theme);
+                localStorage.setItem('theme', theme);
+                this.updateToggleIcon(theme);
+            }
+
+            toggleTheme() {
+                const currentTheme = document.documentElement.getAttribute('data-bs-theme');
+                const newTheme = currentTheme === 'dark' ? 'light' : 'dark';
+                this.setTheme(newTheme);
+            }
+
+            updateToggleIcon(theme) {
+                const icon = document.getElementById('darkModeIcon');
+                if (theme === 'dark') {
+                    icon.className = 'bi bi-sun-fill';
+                } else {
+                    icon.className = 'bi bi-moon-fill';
+                }
+            }
+
+            setupToggleButton() {
+                const toggleButton = document.getElementById('darkModeToggle');
+                toggleButton.addEventListener('click', () => {
+                    this.toggleTheme();
+                    this.animateToggle();
+                });
+            }
+
+            animateToggle() {
+                const button = document.getElementById('darkModeToggle');
+                button.style.transform = 'scale(0.9)';
+                setTimeout(() => {
+                    button.style.transform = '';
+                }, 150);
+            }
+        }
+
+        // Initialize theme manager
+        const themeManager = new ThemeManager();
+
         // Current page for pagination
         let currentPage = 1;
         const pageSize = 10;
+        
+        // Save form values to localStorage
+        function saveFormValues() {
+            const exerciseFormValues = {
+                minTable: document.getElementById('minTable').value,
+                maxTable: document.getElementById('maxTable').value,
+                numExercises: document.getElementById('numExercises').value,
+                exerciseType: document.querySelector('input[name="exerciseType"]:checked').value,
+                maxFirstOperand: document.getElementById('maxFirstOperand').value
+            };
+            
+            const operationFormValues = {
+                numOperationExercises: document.getElementById('numOperationExercises').value
+            };
+            
+            localStorage.setItem('exerciseFormValues', JSON.stringify(exerciseFormValues));
+            localStorage.setItem('operationFormValues', JSON.stringify(operationFormValues));
+        }
+        
+        // Restore form values from localStorage
+        function restoreFormValues() {
+            // Restore exercise form values
+            const savedExerciseValues = localStorage.getItem('exerciseFormValues');
+            if (savedExerciseValues) {
+                const exerciseValues = JSON.parse(savedExerciseValues);
+                document.getElementById('minTable').value = exerciseValues.minTable || 1;
+                document.getElementById('maxTable').value = exerciseValues.maxTable || 10;
+                document.getElementById('numExercises').value = exerciseValues.numExercises || 15;
+                
+                // Restore radio button selection
+                if (exerciseValues.exerciseType) {
+                    const radio = document.querySelector(`input[name="exerciseType"][value="${exerciseValues.exerciseType}"]`);
+                    if (radio) {
+                        radio.checked = true;
+                    }
+                } else if (exerciseValues.multiplicationOnly !== undefined) {
+                    // Handle legacy storage format
+                    document.getElementById('multiplicationOnly').checked = exerciseValues.multiplicationOnly;
+                }
+                
+                document.getElementById('maxFirstOperand').value = exerciseValues.maxFirstOperand || 10;
+            }
+            
+            // Restore operation form values
+            const savedOperationValues = localStorage.getItem('operationFormValues');
+            if (savedOperationValues) {
+                const operationValues = JSON.parse(savedOperationValues);
+                document.getElementById('numOperationExercises').value = operationValues.numOperationExercises || 20;
+            }
+        }
 
         // Function to load and display existing PDFs with pagination (sorted from newest to oldest)
         async function loadPdfList(page = 1) {
@@ -355,7 +648,23 @@
         
         // Load PDF list on page load
         document.addEventListener('DOMContentLoaded', function() {
-            loadPdfList(currentPage);
+            // Ensure theme is initialized first
+            setTimeout(() => {
+                restoreFormValues();
+                loadPdfList(currentPage);
+            }, 100);
+        });
+        
+        // Add event listeners to save form values on change
+        document.getElementById('minTable').addEventListener('change', saveFormValues);
+        document.getElementById('maxTable').addEventListener('change', saveFormValues);
+        document.getElementById('numExercises').addEventListener('change', saveFormValues);
+        document.getElementById('maxFirstOperand').addEventListener('change', saveFormValues);
+        document.getElementById('numOperationExercises').addEventListener('change', saveFormValues);
+        
+        // Add event listeners for radio buttons
+        document.querySelectorAll('input[name="exerciseType"]').forEach(radio => {
+            radio.addEventListener('change', saveFormValues);
         });
         
         // Event listener for select all button
@@ -454,9 +763,15 @@
         document.getElementById('exerciseForm').addEventListener('submit', async function(e) {
             e.preventDefault();
             
+            // Save form values to localStorage
+            saveFormValues();
+            
             const minTable = parseInt(document.getElementById('minTable').value);
             const maxTable = parseInt(document.getElementById('maxTable').value);
             const numExercises = parseInt(document.getElementById('numExercises').value);
+            const exerciseType = document.querySelector('input[name="exerciseType"]:checked').value;
+            const multiplicationOnly = (exerciseType === 'multiplication');
+            const maxFirstOperand = parseInt(document.getElementById('maxFirstOperand').value);
             
             const generateBtn = document.getElementById('generateBtn');
             const buttonText = document.getElementById('buttonText');
@@ -476,7 +791,9 @@
                     body: JSON.stringify({
                         min_table: minTable,
                         max_table: maxTable,
-                        num_exercises: numExercises
+                        num_exercises: numExercises,
+                        multiplication_only: multiplicationOnly,
+                        max_first_operand: maxFirstOperand
                     })
                 });
                 
@@ -491,13 +808,14 @@
                     // Show success message
                     const resultContainer = document.getElementById('resultContainer');
                     const resultMessage = document.getElementById('resultMessage');
+                    const exerciseType = multiplicationOnly ? "multiplications uniquement" : "multiplications et divisions";
                     resultMessage.innerHTML = `
                         <div class="alert alert-success">
                             <h6>PDF généré avec succès!</h6>
                             <p>Le téléchargement devrait commencer automatiquement.</p>
                             <ul class="mb-0">
                                 <li>Tables de ${minTable} à ${maxTable}</li>
-                                <li>${numExercises} exercices générés</li>
+                                <li>${numExercises} exercices générés (${exerciseType})</li>
                             </ul>
                         </div>
                     `;
@@ -522,7 +840,84 @@
                 resultContainer.classList.remove('d-none');
             } finally {
                 // Reset button state
-                buttonText.textContent = 'Générer le PDF';
+                buttonText.textContent = 'Générer le PDF (Mult/Div)';
+                spinner.classList.add('d-none');
+                generateBtn.disabled = false;
+            }
+});
+         
+        // Handle operation exercises form submission
+        document.getElementById('operationExerciseForm').addEventListener('submit', async function(e) {
+            e.preventDefault();
+            
+            // Save form values to localStorage
+            saveFormValues();
+            
+            const numExercises = parseInt(document.getElementById('numOperationExercises').value);
+            
+            
+            const generateBtn = document.getElementById('generateOperationBtn');
+            const buttonText = document.getElementById('operationButtonText');
+            const spinner = document.getElementById('operationSpinner');
+            
+            // Show loading state
+            buttonText.textContent = 'Génération en cours...';
+            spinner.classList.remove('d-none');
+            generateBtn.disabled = true;
+            
+            try {
+                const response = await fetch('/generate-operations', {
+                    method: 'POST',
+                    headers: {
+                        'Content-Type': 'application/json'
+                    },
+                    body: JSON.stringify({
+                        num_exercises: numExercises
+                    })
+                });
+                
+                // Check if it's a redirect response (for automatic download)
+                if (response.redirected) {
+                    // Automatically trigger download
+                    window.location.href = response.url;
+                    
+                    // Refresh the PDF list (reset to first page)
+                    setTimeout(() => loadPdfList(1), 1000);
+                    
+                    // Show success message
+                    const resultContainer = document.getElementById('resultContainer');
+                    const resultMessage = document.getElementById('resultMessage');
+                    resultMessage.innerHTML = `
+                        <div class="alert alert-success">
+                            <h6>PDF d'opérations généré avec succès!</h6>
+                            <p>Le téléchargement devrait commencer automatiquement.</p>
+                            <ul class="mb-0">
+                                <li>${numExercises} exercices d'opérations générés</li>
+                            </ul>
+                        </div>
+                    `;
+                    resultContainer.classList.remove('d-none');
+                } else {
+                    // Handle JSON response (error case)
+                    const result = await response.json();
+                    const resultContainer = document.getElementById('resultContainer');
+                    const resultMessage = document.getElementById('resultMessage');
+                    
+                    if (result.error) {
+                        resultMessage.innerHTML = `<div class="alert alert-danger">${result.error}</div>`;
+                    }
+                    
+                    resultContainer.classList.remove('d-none');
+                }
+            } catch (error) {
+                const resultContainer = document.getElementById('resultContainer');
+                const resultMessage = document.getElementById('resultMessage');
+                
+                resultMessage.innerHTML = `<div class="alert alert-danger">Erreur: ${error.message}</div>`;
+                resultContainer.classList.remove('d-none');
+            } finally {
+                // Reset button state
+                buttonText.textContent = 'Générer le PDF (Opérations)';
                 spinner.classList.add('d-none');
                 generateBtn.disabled = false;
             }

deploy/base/deployment.yaml

@@ -46,7 +46,7 @@ spec:
         # Liveness probe
         livenessProbe:
           httpGet:
-            path: /
+            path: /health
             port: 8000
           initialDelaySeconds: 90
           periodSeconds: 10
@@ -55,13 +55,20 @@ spec:
         # Readiness probe
         readinessProbe:
           httpGet:
-            path: /
+            path: /health
             port: 8000
-          initialDelaySeconds: 5
-          periodSeconds: 10
+          initialDelaySeconds: 2
+          periodSeconds: 3
           timeoutSeconds: 3
           failureThreshold: 3
         # Environment variables from ConfigMap
         envFrom:
         - configMapRef:
             name: math-exercises-config
+        # Volume mount for temporary files
+        volumeMounts:
+        - name: tmp-volume
+          mountPath: /tmp
+      volumes:
+      - name: tmp-volume
+        emptyDir: {}

deploy/overlays/production-scale-to-zero/external-service.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Service
+metadata:
+  creationTimestamp: null
+  labels:
+    app: keda-add-ons-http-interceptor-proxy
+  name: keda-add-ons-http-interceptor-proxy
+spec:
+  externalName: keda-add-ons-http-interceptor-proxy.keda
+  selector:
+    app: keda-add-ons-http-interceptor-proxy
+  type: ExternalName
+status:
+  loadBalancer: {}

deploy/overlays/production-scale-to-zero/http-scaled-object.yaml

@@ -0,0 +1,24 @@
+kind: HTTPScaledObject
+apiVersion: http.keda.sh/v1alpha1
+metadata:
+  name: math-exercises
+spec:
+  hosts:
+    - "math-tables.cl1.parano.ch"
+  pathPrefixes:
+    - /
+  scaleTargetRef:
+    name: math-exercises-app
+    kind: Deployment
+    apiVersion: apps/v1
+    service: math-exercises-service
+    portName: http
+  replicas:
+    min: 0
+    max: 3
+  scaledownPeriod: 60
+  scalingMetric:
+    requestRate:
+      granularity: 1s
+      targetValue: 100
+      window: 1m

deploy/overlays/production-scale-to-zero/kustomization.yaml

@@ -0,0 +1,51 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: math-tables
+resources:
+- ../production
+- external-service.yaml
+- http-scaled-object.yaml
+patches:
+- patch: |
+    [
+      {
+        "op": "remove",
+        "path": "/spec/replicas"
+      }
+    ]
+  target:
+    group: apps
+    version: v1
+    kind: Deployment
+    name: math-exercises-app
+- path: remove-pdb.yaml
+- patch: |
+    [
+      {
+        "op": "replace",
+        "path": "/spec/rules/0/http/paths/0/backend/service/port/number",
+        "value": 8080
+      },
+      {
+        "op": "replace",
+        "path": "/spec/rules/0/http/paths/0/backend/service/name",
+        "value": "keda-add-ons-http-interceptor-proxy"
+      }
+    ]
+  target:
+    group: networking.k8s.io
+    version: v1
+    kind: Ingress
+    name: math-exercises-ingress
+- patch: |
+    [
+      {
+        "op": "replace",
+        "path": "/spec/internalTrafficPolicy",
+        "value": "Cluster"
+      }
+    ]
+  target:
+    version: v1
+    kind: Service
+    name: math-exercises-service

deploy/overlays/production-scale-to-zero/remove-pdb.yaml

@@ -0,0 +1,5 @@
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: math-exercises-pdb
+$patch: delete

deploy/overlays/production/kustomization.yaml

@@ -13,7 +13,7 @@ resources:
 images:
 - name: math-exercises
   newName: harbor.cl1.parano.ch/library/math-exercice
-  newTag: 1.0.2
+  newTag: 1.4.0
 
 # Production-specific labels
 

deploy/overlays/production/s3-credentials.env

@@ -0,0 +1,15 @@
+S3_ACCESS_KEY=ENC[AES256_GCM,data:wZb+QNC7JoDEEOERSONuq6nE7jTBi4t4NmfIWJKxItA=,iv:kbNjsgN3udI43PM7+xBZxtqzIpRItnWl+/oWheMWR+Y=,tag:/95+YFrzHzUyn6kVUkAWvA==,type:str]
+S3_SECRET_KEY=ENC[AES256_GCM,data:UES0Qs0InnZutHZujcFqdEouJwYEQhXqPdHP/01qt9o=,iv:MBtiGmqd3kcNsD/Oi4jOgFKcN/7XyMEpmOyn2EcFT7o=,tag:gthAM9kLrpybchQgIyN/GQ==,type:str]
+S3_HOST_BUCKET=ENC[AES256_GCM,data:6EKH68PpP1nAMPNqmQlkqvEpdW8ZQfXitC1+imMn278=,iv:ZgVo8TuZC/IlhB8E+WZhn5yoxzQUq7OWDun4WJWe0v8=,tag:QyDOV6Du6wOUPRRleZAMFw==,type:str]
+S3_HOST_BASE=ENC[AES256_GCM,data:cpZPWgCklHGHKGicriXVGRpKuHtYQl2N1fqMx5+Snfg=,iv:wm4ncY+x0M2FHZNpT69F6KaYCeyuC9FnvROQuxZsn9M=,tag:bHCUuHhsVygRdkLmNynbZQ==,type:str]
+S3_BUCKET_NAME=ENC[AES256_GCM,data:i+tP6X8weH9MomZSHsY=,iv:4HJo7fG9CwE/y+miLZiCpkt9c2frLSomswcErxWvAK8=,tag:65gsYZArFarUFsrb5nAgng==,type:str]
+sops_lastmodified=2025-09-04T06:42:15Z
+sops_mac=ENC[AES256_GCM,data:misqBU7bfv4f/hUNqMIeFkRls3iuHA3XwjWetVzkLdG2eV2WhjiGL+TuwpVah4PN4BUrqTHmOMGyf4fumGJqOt9DdGnH+MMexFr4aT54TfaPmUpskEuwZGysuyasA6LHZn7a7M6BzxLXiXfSZY9EjahY8l7ZaaV+2pFygJKFfmk=,iv:RlqWkbKQtvvnIRd/g3Eu6CvMduLa1i4omL6RY/HSsag=,tag:n3C16u3x0XznKUpu8cR2tg==,type:str]
+sops_pgp__list_0__map_created_at=2025-09-04T06:42:09Z
+sops_pgp__list_0__map_enc=-----BEGIN PGP MESSAGE-----\n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\n=cbAs\n-----END PGP MESSAGE-----
+sops_pgp__list_0__map_fp=7120085E6161EB9ABC2FD0117C26F0446A4D9603
+sops_pgp__list_1__map_created_at=2025-09-04T06:42:09Z
+sops_pgp__list_1__map_enc=-----BEGIN PGP MESSAGE-----\n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\n=Erct\n-----END PGP MESSAGE-----
+sops_pgp__list_1__map_fp=E21007D7E97694AC900FF3434C6659F378169546
+sops_unencrypted_suffix=_unencrypted
+sops_version=3.10.1

deploy/overlays/production/security-patch.yaml

@@ -10,8 +10,8 @@ spec:
         runAsNonRoot: true
         runAsUser: 1000
         fsGroup: 2000
-        # seccompProfile:
-        #   type: RuntimeDefault
+        seccompProfile:
+          type: RuntimeDefault
       containers:
       - name: math-exercises
         # Additional security settings for production

generate_math_exercises.py

@@ -21,13 +21,6 @@ class MathExercisesPDF(FPDF):
         )
         self.ln(10)
 
-    def footer(self):
-        self.set_y(-15)
-        self.set_font("Helvetica", "I", 8)
-        self.cell(
-            0, 10, f"Page {self.page_no()}", 0, 0, "C", new_x="RIGHT", new_y="TOP"
-        )
-
 
 def generate_exercises(min_table, max_table, num_exercises=15):
     """Génère des exercices de multiplication et division aléatoires mélangés sans doublons"""

requirements.txt

@@ -1,9 +1,32 @@
+annotated-doc==0.0.4
+annotated-types==0.7.0
+anyio==4.12.0
+boto3==1.42.6
+boto3-stubs==1.42.6
+botocore==1.42.6
+botocore-stubs==1.42.6
+click==8.3.1
 defusedxml==0.7.1
-fonttools==4.59.2
-fpdf2==2.8.4
-pillow==11.3.0
-fastapi==0.115.0
-uvicorn==0.30.6
-jinja2==3.1.4
-python-multipart==0.0.9
-boto3==1.34.0
+fastapi==0.124.0
+fonttools==4.61.0
+fpdf2==2.8.5
+h11==0.16.0
+idna==3.11
+Jinja2==3.1.6
+jmespath==1.0.1
+MarkupSafe==3.0.3
+pillow==12.0.0
+pydantic==2.12.5
+pydantic_core==2.41.5
+python-dateutil==2.9.0.post0
+python-multipart==0.0.20
+s3transfer==0.16.0
+six==1.17.0
+sniffio==1.3.1
+starlette==0.50.0
+types-awscrt==0.29.2
+types-s3transfer==0.16.0
+typing-inspection==0.4.2
+typing_extensions==4.15.0
+urllib3==2.6.1
+uvicorn==0.38.0