Initial commit

backend/app/routers/deps.py

@@ -0,0 +1,35 @@
+from fastapi import Depends, HTTPException, status
+from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
+from sqlalchemy.orm import Session
+from ..database import get_db
+from ..services.auth_service import decode_token, get_user_by_id
+
+bearer_scheme = HTTPBearer()
+
+
+def get_current_user(
+    credentials: HTTPAuthorizationCredentials = Depends(bearer_scheme),
+    db: Session = Depends(get_db),
+):
+    payload = decode_token(credentials.credentials)
+    if not payload:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Token inválido o expirado")
+    user_id = int(payload.get("sub", 0))
+    user = get_user_by_id(db, user_id)
+    if not user or not user.is_active:
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Usuario no encontrado")
+    return user
+
+
+def require_admin(user=Depends(get_current_user)):
+    """Solo permite acceso a usuarios con rol ADMIN."""
+    if user.role != "ADMIN":
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Acceso denegado: requiere rol ADMIN")
+    return user
+
+
+def require_staff(user=Depends(get_current_user)):
+    """Permite acceso a EMPLEADO o ADMIN (personal del gobierno)."""
+    if user.role not in ("EMPLEADO", "ADMIN"):
+        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Acceso denegado: requiere rol EMPLEADO o ADMIN")
+    return user