Draft: Read SMOG condition via functors

Functors interpreting SMOG conditions from DeLHCb, grouped here in a functor collection

Depends on Detector!421 (merged) and LHCb!4359 (closed), goes with DaVinci!997 (merged) and Rec!3658 (merged)

Phys/FunTuple/python/FunTuple/functorcollections.py

@@ -28,6 +28,7 @@ from PyConf.Algorithms import Hlt1TisTosAlg, Hlt2TisTosAlg, Hlt1TrueSimEffAlg, H
 import DaVinciMCTools  # type: ignore[import]
 from DecayTreeFitter import DecayTreeFitter  # type: ignore[import]
 from .FunctorCollection import FunctorCollection
+from PyConf.Algorithms import SMOGInfoAlg  # type: ignore[import]
 
 __all__ = (
     "EventInfo",
@@ -46,6 +47,7 @@ __all__ = (
     "DecayTreeFitterResults",
     "ParticleID",
     "MCPrimaries",
+    "SMOGInfo",
 )
 
 
@@ -1144,3 +1146,31 @@ def ParticleID(extra_info: bool = False) -> FunctorCollection:
         )
 
     return FunctorCollection(pid_vars)
+
+
+def SMOGInfo() -> FunctorCollection:
+    """
+    Collection of SMOG conditions (injection mode, injected gas, stable injection flag)
+    See map of possible values at LHCb/Det/LHCbDet/include/LHCbDet/SMOGInfo.h
+
+    Example:
+        import FunTuple.functorcollections as FC
+        from DaVinci import options
+
+        variables = FC.SMOGInfo()
+        # ...
+
+        tuple = FuntupleEvent(name="MyTuple",
+                              fields=...,
+                              variables=variables,
+                              ...
+                             )
+    """
+    SMOG = SMOGInfoAlg(name="SMOGInfo").Output
+
+    SMOG_info = {}
+    SMOG_info["SMOG_InjectionMode"] = F.SMOG_INJECTION_MODE(SMOG)
+    SMOG_info["SMOG_InjectedGas"] = F.SMOG_INJECTED_GAS(SMOG)
+    SMOG_info["SMOG_StableInjection"] = F.SMOG_STABLE_INJECTION(SMOG)
+
+    return FunctorCollection(SMOG_info)