add logging to security

security.py

@@ -1,6 +1,11 @@
 from passlib.context import CryptContext
+from settings import settings
+import jwt
+import datetime
+import logging
 
 password_context = CryptContext(schemes=["sha256_crypt"], deprecated="auto")
+logger = logging.getLogger(__name__)
 
 
 def hash_password(password: str) -> str:
@@ -11,3 +16,46 @@ def hash_password(password: str) -> str:
 def verify_password(plain_password: str, hashed_password: str) -> bool:
     """Verifies a plain text password against a hashed password."""
     return password_context.verify(plain_password, hashed_password)
+
+
+def sign_jwt(row: dict) -> str:
+    """Signs a JWT token with the given payload."""
+    exp = datetime.datetime.now(
+        datetime.timezone.utc) + datetime.timedelta(hours=1)
+
+    payload = {
+        "id": row["id"],
+        "exp": exp
+    }
+
+    return jwt.encode(
+        payload,
+        key=settings.jwt_secret,
+        algorithm=settings.jwt_algorithm
+    )
+
+
+def decode_jwt(token: str | None) -> dict | None:
+    """Decodes a JWT token and returns the payload."""
+    if not token or not token.startswith("Bearer "):
+        logger.warning(
+            "No token provided or token does not start with 'Bearer '")
+        return None
+
+    try:
+        payload = jwt.decode(
+            token.replace("Bearer ", ""),
+            key=settings.jwt_secret,
+            algorithms=[settings.jwt_algorithm]
+        )
+
+        return payload
+    except jwt.ExpiredSignatureError:
+        logger.warning("Token has expired")
+        return None
+    except jwt.InvalidTokenError:
+        logger.warning("Invalid token")
+        return None
+
+    logger.warning("Unexpected error in token decoding")
+    return None