TrackRecoConfig.py

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# Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
 
from AthenaConfiguration.ComponentAccumulator import ComponentAccumulator
from AthenaConfiguration.Enums import BeamType, Format
from TrkConfig.TrkConfigFlags import PerigeeExpression
from TrkConfig.TrackingPassFlags import printActiveConfig, printPrimaryConfig
 
_flags_set = []  # For caching
_extensions_list = [] # For caching
 
def CombinedTrackingPassFlagSets(flags, resetCache=False):
 
    global _flags_set
    if _flags_set and not resetCache:
        return _flags_set
 
    flags_set = []
 
    # Primary Pass
    flags = flags.cloneAndReplace(
        "Tracking.ActiveConfig",
        f"Tracking.{flags.Tracking.PrimaryPassConfig.value}Pass",
        # Keep original flags as some of the subsequent passes use
        # lambda functions relying on them
        keepOriginal=True)
    flags_set += [flags]
 
    # LRT pass
    if flags.Tracking.doLargeD0 or flags.Tracking.doLowPtLargeD0:
 
        if flags.Tracking.doLowPtLargeD0:
            flagsLRT = flags.cloneAndReplace("Tracking.ActiveConfig",
                                             "Tracking.LowPtLargeD0Pass")
        elif flags.Tracking.doLargeD0:
            flagsLRT = flags.cloneAndReplace("Tracking.ActiveConfig",
                                             "Tracking.R3LargeD0Pass")
 
        flags_set += [flagsLRT]
 
    # LowPtRoI pass (low-pt tracks in high pile-up environment)
    if flags.Tracking.doLowPtRoI:
        flagsLowPtRoI = flags.cloneAndReplace("Tracking.ActiveConfig",
                                              "Tracking.LowPtRoIPass")
        flags_set += [flagsLowPtRoI]
 
    # LowPt pass
    if flags.Tracking.doLowPt:
        from TrkConfig.TrkConfigFlags import PrimaryPassConfig
        flagsLowPt = None
        if flags.Tracking.PrimaryPassConfig is not PrimaryPassConfig.HeavyIon:
            flagsLowPt = flags.cloneAndReplace("Tracking.ActiveConfig",
                                               "Tracking.LowPtPass")
            flags_set += [flagsLowPt]
 
    # VeryLowPt pass
    if flags.Tracking.doVeryLowPt:
        flagsVeryLowPt = flags.cloneAndReplace("Tracking.ActiveConfig",
                                               "Tracking.VeryLowPtPass")
        flags_set += [flagsVeryLowPt]
 
    # TRT standalone pass
    if flags.Tracking.doTRTStandalone:
        flagsTRTStandalone = flags.cloneAndReplace("Tracking.ActiveConfig",
                                                   "Tracking.TRTStandalonePass")
        flags_set += [flagsTRTStandalone]
 
    # Forward tracklets
    if flags.Tracking.doForwardTracks:
        flagsForward = flags.cloneAndReplace("Tracking.ActiveConfig",
                                             "Tracking.ForwardPass")
        flags_set += [flagsForward]
 
    # Disappearing pixel tracklets
    if flags.Tracking.doTrackSegmentsDisappearing:
        flagsDisappearing = flags.cloneAndReplace("Tracking.ActiveConfig",
                                                  "Tracking.DisappearingPass")
        flags_set += [flagsDisappearing]
 
    # Beam gas
    if flags.Tracking.doBeamGas:
        flagsBeamGas = flags.cloneAndReplace("Tracking.ActiveConfig",
                                             "Tracking.BeamGasPass")
        flags_set += [flagsBeamGas]
 
    _flags_set = flags_set  # Put into cache
 
    return flags_set
 
def ClusterSplitProbabilityContainerName(flags):
    if flags.Detector.GeometryITk:
        from InDetConfig.ITkTrackRecoConfig import (
            ITkClusterSplitProbabilityContainerName)
        return ITkClusterSplitProbabilityContainerName(flags)
 
    flags_set = CombinedTrackingPassFlagSets(flags)
    extension = flags_set[-1].Tracking.ActiveConfig.extension
 
    # No ambi processing for TRT standalone, so pick the previous pass
    if extension == "TRTStandalone":
        extension = flags_set[-2].Tracking.ActiveConfig.extension
 
    ClusterSplitProbContainer = "InDetAmbiguityProcessorSplitProb" + extension
 
    # Only primary pass + back-tracking
    if len(flags_set) == 1 and flags.Tracking.doBackTracking:
        ClusterSplitProbContainer = (
            "InDetTRT_SeededAmbiguityProcessorSplitProb" + extension)
    return ClusterSplitProbContainer
 
# TODO find config to validate this
 
 
def InDetCosmicsTrackRecoPreProcessingCfg(flags):
    result = ComponentAccumulator()
 
    from InDetConfig.TrackingSiPatternConfig import TrackingSiPatternCfg
    result.merge(TrackingSiPatternCfg(
        flags,
        InputCollections=[],
        ResolvedTrackCollectionKey="ResolvedTracks",
        SiSPSeededTrackCollectionKey="SiSPSeededTracks"))
 
    if flags.Detector.EnableTRT:
        from InDetConfig.TRTExtensionConfig import NewTrackingTRTExtensionPhaseCfg
        result.merge(NewTrackingTRTExtensionPhaseCfg(
            flags,
            SiTrackCollection="ResolvedTracks",
            ExtendedTrackCollection="ExtendedTracksPhase",
            ExtendedTracksMap="ExtendedTracksMapPhase"))
 
        from InDetConfig.TRTSegmentFindingConfig import TRTSegmentFinding_Phase_Cfg
        result.merge(TRTSegmentFinding_Phase_Cfg(flags))
 
        from InDetConfig.InDetTrackPRD_AssociationConfig import (
            InDetTrackPRD_AssociationCfg)
        result.merge(InDetTrackPRD_AssociationCfg(
            flags, name='InDetTRTonly_TrackPRD_AssociationPhase',
            AssociationMapName='InDetTRTonly_PRDtoTrackMapPhase',
            TracksName=[]))
 
        from InDetConfig.TRT_SegmentsToTrackConfig import (
            TRT_Cosmics_SegmentsToTrackCfg)
        result.merge(TRT_Cosmics_SegmentsToTrackCfg(
            flags, name='InDetTRT_Cosmics_SegmentsToTrack_Phase',
            InputSegmentsCollection="TRTSegments_Phase",
            OutputTrackCollection="TRT_Tracks_Phase"))
 
        from InDetConfig.InDetCosmicsEventPhaseConfig import (
            InDetCosmicsEventPhaseCfg)
        result.merge(InDetCosmicsEventPhaseCfg(
            flags,
            InputTracksNames=["TRT_Tracks_Phase"]))
 
        from InDetConfig.InDetPrepRawDataFormationConfig import (
            InDetTRT_Phase_RIO_MakerCfg)
        result.merge(InDetTRT_Phase_RIO_MakerCfg(flags))
 
    return result
 
 
def InDetPreProcessingCfg(flags):
    result = ComponentAccumulator()
 
    # Detector ByteStream pre-processing
    if flags.Input.Format is Format.BS:
        if flags.Detector.EnablePixel:
            from PixelRawDataByteStreamCnv.PixelRawDataByteStreamCnvConfig import (
                PixelRawDataProviderAlgCfg)
            result.merge(PixelRawDataProviderAlgCfg(flags))
 
        if flags.Detector.EnableSCT:
            from SCT_RawDataByteStreamCnv.SCT_RawDataByteStreamCnvConfig import (
                SCTRawDataProviderCfg, SCTEventFlagWriterCfg)
            result.merge(SCTRawDataProviderCfg(flags))
            result.merge(SCTEventFlagWriterCfg(flags))
 
        if flags.Detector.EnableTRT:
            from TRT_RawDataByteStreamCnv.TRT_RawDataByteStreamCnvConfig import (
                TRTRawDataProviderCfg)
            result.merge(TRTRawDataProviderCfg(flags))
 
    if flags.Detector.EnablePixel or flags.Detector.EnableSCT:
        from InDetConfig.SiliconPreProcessing import InDetRecPreProcessingSiliconCfg
        result.merge(InDetRecPreProcessingSiliconCfg(flags))
    if flags.Detector.EnableTRT:
        from InDetConfig.TRTPreProcessing import TRTPreProcessingCfg
        result.merge(TRTPreProcessingCfg(flags))
 
    return result
 
def SiDetectorElementStatusCfg(flags, suffix="") :
    result = ComponentAccumulator()
    if flags.Detector.GeometryITk:
        if flags.Detector.EnableITkPixel:
            from PixelConditionsAlgorithms.ITkPixelConditionsConfig import (
                ITkPixelDetectorElementStatusAlgCfg)
            result.merge(ITkPixelDetectorElementStatusAlgCfg(flags,name=f"ITkPixelDetectorElementStatusAlg{suffix}"))
        if flags.Detector.EnableITkStrip:
            from SCT_ConditionsAlgorithms.ITkStripConditionsAlgorithmsConfig import  (
                ITkStripDetectorElementStatusAlgCfg)
            result.merge(ITkStripDetectorElementStatusAlgCfg(flags,name=f"ITkStripDetectorElementStatusAlg{suffix}"))
    return result
 
 
# Returns CA + ClusterSplitProbContainer
def SiSubDetTrackRecoCfg(flags, detector="",
                         extensions_list=None,
                         ClusterSplitProbContainer=""):
    result = ComponentAccumulator()
 
    if extensions_list is None:
        extensions_list = []
 
    flagsDet = flags.cloneAndReplace("Tracking.ActiveConfig",
                                     f"Tracking.{detector}Pass")
    TrackContainer = f"Resolved{detector}Tracks"
    extensions_list.append(flagsDet.Tracking.ActiveConfig.extension)
    printActiveConfig(flagsDet)
 
    from InDetConfig.TrackingSiPatternConfig import TrackingSiPatternCfg
    result.merge(TrackingSiPatternCfg(
        flagsDet,
        InputCollections=[],
        ResolvedTrackCollectionKey=TrackContainer,
        SiSPSeededTrackCollectionKey=f"SiSPSeeded{detector}Tracks",
        ClusterSplitProbContainer=ClusterSplitProbContainer))
 
    ClusterSplitProbContainer = (
        "InDetAmbiguityProcessorSplitProb" +
        flagsDet.Tracking.ActiveConfig.extension)
 
    if flags.Tracking.doTruth:
        from InDetConfig.TrackTruthConfig import InDetTrackTruthCfg
        result.merge(InDetTrackTruthCfg(
            flagsDet,
            Tracks=TrackContainer,
            DetailedTruth=TrackContainer+"DetailedTruth",
            TracksTruth=TrackContainer+"TruthCollection"))
 
    from xAODTrackingCnv.xAODTrackingCnvConfig import (
        TrackParticleCnvAlgPIDCheckCfg)
    result.merge(TrackParticleCnvAlgPIDCheckCfg(
        flagsDet,
        name=TrackContainer+"CnvAlg",
        TrackContainerName=TrackContainer,
        xAODTrackParticlesFromTracksContainerName=(
            f"InDet{detector}TrackParticles")))
 
    return result, ClusterSplitProbContainer
 
 
def TRTTrackRecoCfg(flags, extensions_list=None):
    result = ComponentAccumulator()
 
    if extensions_list is None:
        extensions_list = []
 
    flagsTRT = flags.cloneAndReplace("Tracking.ActiveConfig",
                                     "Tracking.TRTPass")
    extensions_list.append(flagsTRT.Tracking.ActiveConfig.extension)
    printActiveConfig(flagsTRT)
 
    from InDetConfig.TRTSegmentFindingConfig import (
        TRTSegmentFinding_TrackSegments_Cfg)
    result.merge(TRTSegmentFinding_TrackSegments_Cfg(flagsTRT))
 
    from InDetConfig.TRTStandaloneConfig import TRT_TrackSegment_Cfg
    result.merge(TRT_TrackSegment_Cfg(flagsTRT))
 
    return result
 
 
def TRTStandalonePassRecoCfg(flags,
                             InputCombinedInDetTracks=None,
                             InputExtendedInDetTracks=None,
                             StatTrackCollections=None,
                             StatTrackTruthCollections=None):
    result = ComponentAccumulator()
 
    if InputCombinedInDetTracks is None:
        InputCombinedInDetTracks = []
    if InputExtendedInDetTracks is None:
        InputExtendedInDetTracks = []
    if StatTrackCollections is None:
        StatTrackCollections = []
    if StatTrackTruthCollections is None:
        StatTrackTruthCollections = []
 
    from InDetConfig.TRTStandaloneConfig import TRTStandaloneCfg
    result.merge(TRTStandaloneCfg(flags,
                                  InputCollections=InputCombinedInDetTracks))
 
    TRTTrackContainer = "TRTStandaloneTracks"
    InputCombinedInDetTracks += [TRTTrackContainer]
    InputExtendedInDetTracks += [TRTTrackContainer]
    StatTrackCollections += [TRTTrackContainer]
    StatTrackTruthCollections += [TRTTrackContainer+"TruthCollection"]
 
    if flags.Tracking.doTrackSegmentsTRT:
        from xAODTrackingCnv.xAODTrackingCnvConfig import (
            TrackParticleCnvAlgNoPIDCfg)
        result.merge(TrackParticleCnvAlgNoPIDCfg(
            flags, TRTTrackContainer+"CnvAlg",
            TrackContainerName=TRTTrackContainer,
            xAODTrackParticlesFromTracksContainerName=(
                "InDetTRTTrackParticles")))
 
    return result
 
 
# Return CA + TrackContainer
def StoreTrackSeparateContainerCfg(flags, TrackContainer="",
                                   ClusterSplitProbContainer=""):
    result = ComponentAccumulator()
    # Dummy Merger to fill additional info
    # for PRD-associated pixel tracklets
    # Can also run on all separate collections like R3LargeD0
    # but kept consistent with legacy config
    AssociationMapName = ""
    extension = flags.Tracking.ActiveConfig.extension
    
    # For track overlay: each pass owns its output container; merging of Sig/Bkg is handled earlier if needed
    # Always run the block for Disappearing extension to ensure containers are produced
    if extension == "Disappearing":
        InputTracks = [TrackContainer]
        # For TO, always use DisappearingTracks as the output container for downstream
        TrackContainer = extension + "Tracks"
        MergerOutputTracks = TrackContainer
 
        from TrkConfig.TrkTrackCollectionMergerConfig import (
            TrackCollectionMergerAlgCfg)
        result.merge(TrackCollectionMergerAlgCfg(
            flags,
            name = "TrackCollectionMergerAlgCfg" + extension,
            InputCombinedTracks=InputTracks,
            OutputCombinedTracks=MergerOutputTracks,
            AssociationMapName="PRDtoTrackMap" + TrackContainer))
 
    if flags.Tracking.doTruth:
        from InDetConfig.TrackTruthConfig import InDetTrackTruthCfg
        result.merge(InDetTrackTruthCfg(
            flags,
            Tracks=TrackContainer,
            DetailedTruth=TrackContainer+"DetailedTruth",
            TracksTruth=TrackContainer+"TruthCollection"))
 
    # Need specific handling with TrackParticles for R3LargeD0
    # not to break downstream configs
    xAODTrackParticlesName = (
        "InDetLargeD0TrackParticles" if "LargeD0" in extension else
        "InDet" + extension + "TrackParticles")
 
    from xAODTrackingCnv.xAODTrackingCnvConfig import (
        TrackParticleCnvAlgPIDCheckCfg)
    result.merge(TrackParticleCnvAlgPIDCheckCfg(
        flags,
        name = extension + "TrackParticleCnvAlg",
        TrackContainerName=TrackContainer,
        xAODTrackParticlesFromTracksContainerName=xAODTrackParticlesName,
        ClusterSplitProbabilityName=ClusterSplitProbContainer,
        AssociationMapName=AssociationMapName))
 
    return result, TrackContainer
 
 
def TrackOverlayResolvedTracksName(flags):
    """Name of the ambiguity-resolved Si track collection of the track overlay primary pass"""
    ResolvedTracks = "ResolvedTracks"
    # save resolved track name for final merged track collection
    if flags.Tracking.ActiveConfig.storeSeparateContainer:
        ResolvedTracks = flags.Overlay.SigPrefix + ResolvedTracks
    return ResolvedTracks
 
 
def TrackOverlayRoIRemovedTracksName(flags):
    """Pileup tracks re-found by the track overlay primary pass inside the RoIs of the
    RoI-limited Si overlay. They are not written out, but later passes treat their clusters
    as used, as the corresponding pileup tracks do in MC overlay."""
    if not (flags.TrackOverlay.isTrackOverlaySeq and flags.TrackOverlay.doRoISiOverlay):
        return None
    return TrackOverlayResolvedTracksName(flags) + "RemovedPileup"
 
 
# Returns CA + ClusterSplitProbContainer
def BackTrackingRecoCfg(flags,
                        InputCombinedInDetTracks=None,
                        InputExtendedInDetTracks=None,
                        StatTrackCollections=None,
                        StatTrackTruthCollections=None,
                        ClusterSplitProbContainer=""):
    result = ComponentAccumulator()
 
    if InputCombinedInDetTracks is None:
        InputCombinedInDetTracks = []
    if InputExtendedInDetTracks is None:
        InputExtendedInDetTracks = []
    if StatTrackCollections is None:
        StatTrackCollections = []
    if StatTrackTruthCollections is None:
        StatTrackTruthCollections = []
 
    from InDetConfig.BackTrackingConfig import BackTrackingCfg
    result.merge(BackTrackingCfg(
        flags,
        InputCollections=InputCombinedInDetTracks,
        ClusterSplitProbContainer=ClusterSplitProbContainer))
 
    ClusterSplitProbContainer = (
        "InDetTRT_SeededAmbiguityProcessorSplitProb" +
        flags.Tracking.ActiveConfig.extension)
    TRTSeededTracks = "TRTSeededTracks"
    ResolvedTRTSeededTracks = "ResolvedTRTSeededTracks"
    InputCombinedInDetTracks += [ResolvedTRTSeededTracks]
    InputExtendedInDetTracks += [ResolvedTRTSeededTracks]
    StatTrackCollections += [TRTSeededTracks,
                             ResolvedTRTSeededTracks]
    StatTrackTruthCollections += [TRTSeededTracks+"TruthCollection",
                                  ResolvedTRTSeededTracks+"TruthCollection"]
 
    return result, ClusterSplitProbContainer
 
 
# Returns CA + ClusterSplitProbContainer
def TrackRecoPassCfg(flags, extension="",
                     doTrackingSiPattern=True,
                     InputCombinedInDetTracks=None,
                     InputExtendedInDetTracks=None,
                     StatTrackCollections=None,
                     StatTrackTruthCollections=None,
                     ClusterSplitProbContainer=""):
    result = ComponentAccumulator()
    doTrackOverlay = flags.TrackOverlay.isTrackOverlaySeq
    if InputCombinedInDetTracks is None:
        InputCombinedInDetTracks = []
    if InputExtendedInDetTracks is None:
        InputExtendedInDetTracks = []
    if StatTrackCollections is None:
        StatTrackCollections = []
    if StatTrackTruthCollections is None:
        StatTrackTruthCollections = []
 
    ResolvedTracks = "Resolved" + extension + "Tracks"
    # for track overlay, save resolved track name for final merged track collection
    # Only add Sig_ prefix for primary pass (where we merge signal+pileup)
    # Non-primary passes process signal only, so no prefix needed
    if doTrackOverlay and extension == '':
        ResolvedTracks = TrackOverlayResolvedTracksName(flags)
 
    # Tweak to match old config key
    if "LargeD0" in extension:
        ResolvedTracks = "ResolvedLargeD0Tracks"
 
    # ---------------------------------------
    # --- Si pattern, if not done in the cosmic preprocessing
    # ---------------------------------------
 
    if doTrackingSiPattern:
        SiSPSeededTracks = "SiSPSeeded" + extension + "Tracks"
        
        from InDetConfig.TrackingSiPatternConfig import TrackingSiPatternCfg
        result.merge(TrackingSiPatternCfg(
            flags,
            InputCollections=InputExtendedInDetTracks,
            ResolvedTrackCollectionKey=ResolvedTracks,
            SiSPSeededTrackCollectionKey=SiSPSeededTracks,
            ClusterSplitProbContainer=ClusterSplitProbContainer))
        StatTrackCollections += [SiSPSeededTracks, ResolvedTracks]
        StatTrackTruthCollections += [SiSPSeededTracks+"TruthCollection",
                                      ResolvedTracks+"TruthCollection"]
 
    # ---------------------------------------
    # --- For track overlay main pass: merge signal Si tracks with pileup tracks BEFORE TRT extension
    # --- TRT extension needs to see ALL Si tracks (signal + pileup) to properly
    # --- associate TRT hits from the overlaid TRT_RDOs with both signal and pileup tracks
    # ---------------------------------------
    
    TrackContainer = ResolvedTracks
    
    # Track which Si tracks to use for TRT extension
    SiTracksForTRTExtension = ResolvedTracks
    
    # For track overlay: Merge signal + pileup Si tracks BEFORE TRT extension
    # First add TrackSummary to pileup tracks
    # Then merge and run TRT extension on combined collection
    if doTrackOverlay and extension == '':
        # Add TrackSummary to all pileup tracks
        from InDetConfig.AddTrackSummaryAlgConfig import AddTrackSummaryAlgCfg
        result.merge(AddTrackSummaryAlgCfg(
           flags,
           name="AddSummaryToPileupTracks",
           InputTrackCollection="Bkg_CombinedInDetTracks",
           OutputTrackCollection="Bkg_CombinedInDetTracksWithSummary",
        ))
        # Drop re-finds pileup particles as they are already counted in Bkg_CombinedInDetTracks
        SignalTracksForMerge = ResolvedTracks
        if flags.TrackOverlay.doRoISiOverlay:
            from TrackOverlayRec.TrackOverlayRoIConfig import (
                TrackOverlaySignalTrackFilterAlgCfg)
            SignalTracksForMerge = ResolvedTracks + "Filtered"
            RemovedTracks = TrackOverlayRoIRemovedTracksName(flags)
            result.merge(TrackOverlaySignalTrackFilterAlgCfg(
                flags,
                InputTracks=ResolvedTracks,
                OutputTracks=SignalTracksForMerge,
                RemovedTracks=RemovedTracks))
            # later Si passes treat their clusters as used
            InputExtendedInDetTracks += [RemovedTracks]
        # Merge signal + pileup Si tracks
        from TrkConfig.TrkTrackCollectionMergerConfig import TrackCollectionMergerAlgCfg
        result.merge(TrackCollectionMergerAlgCfg(
            flags,
            name="MergeSignalPileupBeforeTRTExtension",
            InputCombinedTracks=[SignalTracksForMerge, "Bkg_CombinedInDetTracksWithSummary"],
            OutputCombinedTracks="MergedSiTracks",
            AssociationMapName="PRDtoTrackMapMergedSiTracks"))
        
        # Use merged Si tracks as input for TRT extension
        SiTracksForTRTExtension = "MergedSiTracks"
        TrackContainer = "MergedSiTracks"
        
    elif (doTrackOverlay and
          flags.Tracking.ActiveConfig.storeSeparateContainer):
        #not doing the merge in non-primary passes, so the pass’s own output container
        TrackContainer = ResolvedTracks
 
    # ---------------------------------------
    # --- TRT extension
    # ---------------------------------------
 
    # For track overlay non-primary passes: process signal tracks normally
    # Primary pass (extension="") merges signal+pileup Si tracks before TRT extension (done above)
 
    if flags.Tracking.ActiveConfig.useTRTExtension:
        ExtendedTracks = "Extended" + extension + "Tracks"
        # Tweaks to match old config key
        if extension == "Disappearing":
            ExtendedTracks = "ExtendedTracksDisappearing"
        elif "LargeD0" in extension:
            ExtendedTracks = "ExtendedLargeD0Tracks"
            # In track overlay, LargeD0 pass only processes signal - no Sig_ prefix needed
        ExtendedTracksMap = "ExtendedTracksMap" + extension
        from InDetConfig.TRTExtensionConfig import NewTrackingTRTExtensionCfg
        result.merge(NewTrackingTRTExtensionCfg(
            flags,
            SiTrackCollection=SiTracksForTRTExtension,
            ExtendedTrackCollection=ExtendedTracks,
            ExtendedTracksMap=ExtendedTracksMap))
 
        TrackContainer = ExtendedTracks
        if doTrackOverlay and "LargeD0" in extension:
            TrackContainer = "ExtendedLargeD0Tracks"
        StatTrackCollections += [ExtendedTracks]
        StatTrackTruthCollections += [ExtendedTracks+"TruthCollection"]
 
    # ---------------------------------------
    # --- Store separate container if needed
    # ---------------------------------------
 
    if flags.Tracking.ActiveConfig.storeSeparateContainer:
        acc, TrackContainer = StoreTrackSeparateContainerCfg(
            flags,
            TrackContainer=TrackContainer,
            ClusterSplitProbContainer=ClusterSplitProbContainer)
        result.merge(acc)
 
    else:  # Do not store separate track container
        ClusterSplitProbContainer = (
            "InDetAmbiguityProcessorSplitProb" +
            flags.Tracking.ActiveConfig.extension)
        InputCombinedInDetTracks += [TrackContainer]
 
    InputExtendedInDetTracks += [TrackContainer]
    return result, ClusterSplitProbContainer
 
 
def TrackFinalCfg(flags,
                  InputCombinedInDetTracks=None,
                  StatTrackCollections=None,
                  StatTrackTruthCollections=None):
    result = ComponentAccumulator()
    if InputCombinedInDetTracks is None:
        InputCombinedInDetTracks = []
    if StatTrackCollections is None:
        StatTrackCollections = []
    if StatTrackTruthCollections is None:
        StatTrackTruthCollections = []
 
    TrackContainer = "CombinedInDetTracks"
 
    from TrkConfig.TrkTrackCollectionMergerConfig import (
        TrackCollectionMergerAlgCfg)
    result.merge(TrackCollectionMergerAlgCfg(
        flags,
        InputCombinedTracks=InputCombinedInDetTracks,
        OutputCombinedTracks=TrackContainer,
        AssociationMapName=f"PRDtoTrackMapMerge_{TrackContainer}"))
 
    if flags.Tracking.doTruth:
        from InDetConfig.TrackTruthConfig import InDetTrackTruthCfg
        result.merge(InDetTrackTruthCfg(
            flags,
            Tracks=TrackContainer,
            DetailedTruth=f"{TrackContainer}DetailedTruth",
            TracksTruth=f"{TrackContainer}TruthCollection"))
 
    StatTrackCollections += [TrackContainer]
    StatTrackTruthCollections += [f"{TrackContainer}TruthCollection"]
 
    if flags.Tracking.doSlimming:
        from TrkConfig.TrkTrackSlimmerConfig import TrackSlimmerCfg
        result.merge(TrackSlimmerCfg(
            flags,
            TrackLocation=[TrackContainer]))
 
    if flags.Tracking.perigeeExpression in [
            PerigeeExpression.BeamLine, PerigeeExpression.Origin]:
        from xAODTrackingCnv.xAODTrackingCnvConfig import TrackParticleCnvAlgCfg
        result.merge(TrackParticleCnvAlgCfg(
            flags,
            ClusterSplitProbabilityName=ClusterSplitProbabilityContainerName(
                flags),
            AssociationMapName=f"PRDtoTrackMapMerge_{TrackContainer}"))
 
    return result
 
 
def PseudoTrackFinalCfg(flags):
    result = ComponentAccumulator()
 
    TrackContainer = "InDetPseudoTracks"
    if flags.Tracking.doTruth:
        from InDetConfig.TrackTruthConfig import InDetTrackTruthCfg
        result.merge(InDetTrackTruthCfg(
            flags,
            Tracks=TrackContainer,
            DetailedTruth=TrackContainer + "DetailedTruth",
            TracksTruth=TrackContainer + "TruthCollection"))
 
    from xAODTrackingCnv.xAODTrackingCnvConfig import TrackParticleCnvAlgCfg
    result.merge(TrackParticleCnvAlgCfg(
        flags,
        name="PseudoTrackParticleCnvAlg",
        TrackContainerName=TrackContainer,
        xAODTrackParticlesFromTracksContainerName=(
            "InDetPseudoTrackParticles"),
        AssociationMapName=(
            "PRDtoTrackMapMerge_CombinedInDetTracks")))
 
    return result
 
 
def ObserverTrackFinalCfg(flags):
    result = ComponentAccumulator()
 
    TrackContainer = "ObservedTracksCollection"
    if flags.Tracking.doTruth:
        from InDetConfig.TrackTruthConfig import InDetTrackTruthCfg
        result.merge(InDetTrackTruthCfg(
            flags,
            Tracks=TrackContainer,
            DetailedTruth=TrackContainer + "DetailedTruth",
            TracksTruth=TrackContainer + "TruthCollection"))
 
    from xAODTrackingCnv.xAODTrackingCnvConfig import (
        ObserverTrackParticleCnvAlgCfg)
    result.merge(ObserverTrackParticleCnvAlgCfg(
        flags,
        AssociationMapName = (
            "PRDtoTrackMapMerge_CombinedInDetTracks")))
 
    return result
 
 
def TrackSeedsFinalCfg(flags):
    result = ComponentAccumulator()
 
    # get list of extensions requesting track seeds.
    # Add always the Primary Pass.
    listOfExtensionsRequesting = [
        e for e in _extensions_list
        if (e == '' or flags.Tracking[f"{e}Pass"].storeTrackSeeds) ]
 
    for extension in listOfExtensionsRequesting:
        TrackContainer = "SiSPSeedSegments"+extension
 
        if flags.Tracking.doTruth:
            from InDetConfig.TrackTruthConfig import InDetTrackTruthCfg
            result.merge(InDetTrackTruthCfg(
                flags,
                Tracks=TrackContainer,
                DetailedTruth=f"{TrackContainer}DetailedTruth",
                TracksTruth=f"{TrackContainer}TruthCollection"))
 
        from xAODTrackingCnv.xAODTrackingCnvConfig import (
            TrackParticleCnvAlgNoPIDCfg)
        result.merge(TrackParticleCnvAlgNoPIDCfg(
            flags,
            name=f"{TrackContainer}CnvAlg",
            TrackContainerName=TrackContainer,
            xAODTrackParticlesFromTracksContainerName=(
                f"{TrackContainer}TrackParticles")))
 
    return result
 
 
def SiSPSeededTracksFinalCfg(flags):
    result = ComponentAccumulator()
 
    primaryPassExtension = flags.Tracking[f"{flags.Tracking.PrimaryPassConfig.value}Pass"].extension
 
    # get list of extensions requesting track candidates.
    # Add always the Primary Pass.
    listOfExtensionsRequesting = [
        e for e in _extensions_list
        if (e=='' or flags.Tracking[f"{e}Pass"].storeSiSPSeededTracks) ]
 
    for extension in listOfExtensionsRequesting:
        AssociationMapNameKey="PRDtoTrackMapMerge_CombinedInDetTracks"
        if extension=='Disappearing':
            AssociationMapNameKey = "PRDtoTrackMapMerge_DisappearingTracks"
        elif not (extension == primaryPassExtension):
            AssociationMapNameKey = f"InDetPRDtoTrackMap{extension}"
 
        from xAODTrackingCnv.xAODTrackingCnvConfig import (
            TrackParticleCnvAlgNoPIDCfg)
        result.merge(TrackParticleCnvAlgNoPIDCfg(
            flags,
            name = f"SiSPSeededTracks{extension}CnvAlg",
            TrackContainerName = f"SiSPSeeded{extension}Tracks",
            xAODTrackParticlesFromTracksContainerName=(
                f"SiSPSeededTracks{extension}TrackParticles"),
            AssociationMapName=AssociationMapNameKey))
 
    return result
 
 
def InDetStatsCfg(flags, StatTrackCollections=None,
                  StatTrackTruthCollections=None):
    result = ComponentAccumulator()
 
    from InDetConfig.InDetRecStatisticsConfig import (
        InDetRecStatisticsAlgCfg)
    result.merge(InDetRecStatisticsAlgCfg(
        flags,
        TrackCollectionKeys=StatTrackCollections,
        TrackTruthCollectionKeys=(
            StatTrackTruthCollections if flags.Tracking.doTruth else [])))
 
    if flags.Tracking.doTruth:
        from InDetConfig.InDetTrackClusterAssValidationConfig import (
            InDetTrackClusterAssValidationCfg)
        result.merge(InDetTrackClusterAssValidationCfg(
            flags,
            TracksLocation=StatTrackCollections))
 
    return result
 
 
def ExtendedPRDInfoCfg(flags):
    result = ComponentAccumulator()
 
    if (flags.Tracking.doTIDE_AmbiTrackMonitoring or
        flags.Tracking.doPseudoTracking):
        from InDetConfig.InDetPrepRawDataToxAODConfig import (
            InDetPixelPrepDataToxAOD_ExtraTruthCfg as PixelPrepDataToxAODCfg,
            InDetSCT_PrepDataToxAOD_ExtraTruthCfg as SCT_PrepDataToxAODCfg,
            InDetTRT_PrepDataToxAOD_ExtraTruthCfg as TRT_PrepDataToxAODCfg)
    else:
        from InDetConfig.InDetPrepRawDataToxAODConfig import (
            InDetPixelPrepDataToxAODCfg as PixelPrepDataToxAODCfg,
            InDetSCT_PrepDataToxAODCfg as SCT_PrepDataToxAODCfg,
            InDetTRT_PrepDataToxAODCfg as TRT_PrepDataToxAODCfg)
 
    if flags.Tracking.writeExtendedSi_PRDInfo:
        result.merge(PixelPrepDataToxAODCfg(
            flags,
            ClusterSplitProbabilityName=(
                ClusterSplitProbabilityContainerName(flags))))
        result.merge(SCT_PrepDataToxAODCfg(flags))
 
    if flags.Tracking.writeExtendedTRT_PRDInfo:
        result.merge(TRT_PrepDataToxAODCfg(flags))
 
    from DerivationFrameworkInDet.InDetToolsConfig import TSOS_CommonKernelCfg
    # Set up one algorithm for each output tracking container    
    # Always done for default pass
    # Done for other passes if pass requests to store track seeds OR track candidates OR requests separate container 
    # Input handling/configuration of algorithm for specific cases is done in TSOS_CommonKernelCfg
    listOfExtensionsRequesting = [
        e for e in _extensions_list if (e == '')
        or (flags.Tracking[f"{e}Pass"].storeTrackSeeds) # Store Si track seeds
        or (flags.Tracking[f"{e}Pass"].storeSiSPSeededTracks) # Store Si candidate tracks
        or (flags.Tracking[f"{e}Pass"].storeSeparateContainer) ] # Particular tracking pass requesting separate container from main pass
    result.merge(TSOS_CommonKernelCfg(
        flags, listOfExtensions = listOfExtensionsRequesting))
 
    if flags.Tracking.doTIDE_AmbiTrackMonitoring:
        from DerivationFrameworkInDet.InDetToolsConfig import (
            ObserverTSOS_CommonKernelCfg)
        result.merge(ObserverTSOS_CommonKernelCfg(flags))
 
    if flags.Tracking.doPseudoTracking:
        from DerivationFrameworkInDet.InDetToolsConfig import (
            PseudoTSOS_CommonKernelCfg)
        result.merge(PseudoTSOS_CommonKernelCfg(flags))
 
    if flags.Tracking.doStoreTrackSeeds:
        from DerivationFrameworkInDet.InDetToolsConfig import (
            SiSPSeedsTSOS_CommonKernelCfg)
        # Setup one algorithm for each output tracking container
        listOfExtensionsRequesting = [
            e for e in _extensions_list if (e == '') or
            flags.Tracking[f"{e}Pass"].storeTrackSeeds ]
        result.merge(SiSPSeedsTSOS_CommonKernelCfg(
            flags, listOfExtensions = listOfExtensionsRequesting))
 
    if flags.Tracking.doStoreSiSPSeededTracks:
        from DerivationFrameworkInDet.InDetToolsConfig import (
            SiSPTSOS_CommonKernelCfg)
        # Setup one algorithm for each output tracking container
        listOfExtensionsRequesting = [
            e for e in _extensions_list if (e == '') or
            flags.Tracking[f"{e}Pass"].storeSiSPSeededTracks ]
        result.merge(SiSPTSOS_CommonKernelCfg(
            flags, listOfExtensions = listOfExtensionsRequesting))
 
    if flags.Tracking.doTruth:
        #check if we want to add it for other passes
        listOfExtensionsRequesting = [
            e for e in _extensions_list if (e == '') or
            (flags.Tracking[f"{e}Pass"].storeSiSPSeededTracks and
             flags.Tracking[f"{e}Pass"].storeSeparateContainer) ]
        from InDetPhysValMonitoring.InDetPhysValDecorationConfig import (
            InDetPhysHitDecoratorAlgCfg)
        for extension in listOfExtensionsRequesting:
            result.merge(InDetPhysHitDecoratorAlgCfg(
                flags,
                name=f"InDetPhysHit{extension}DecoratorAlg",
                TrackParticleContainerName=f"InDet{extension}TrackParticles"))
 
    return result
 
 

 
def InDetTrackRecoCfg(flags):
 
    # Bypass to ITk config
    if flags.Detector.GeometryITk:
        from InDetConfig.ITkTrackRecoConfig import ITkTrackRecoCfg
        return ITkTrackRecoCfg(flags)
    # Bypass to ACTS Inner Detector config
    from TrkConfig.TrkConfigFlags import TrackingComponent
    if TrackingComponent.ActsChain in flags.Tracking.recoChain:
        from InDetConfig.ActsTrackRecoConfig import ActsTrackRecoCfg
        return ActsTrackRecoCfg(flags)
    """Configures complete ID tracking """
    result = ComponentAccumulator()
    result.merge(InDetPreProcessingCfg(flags))
 
    ClusterSplitProbContainer = ''
 
    # ------------------------------------------------------------
    #
    # ----------- Subdetector pattern from New Tracking
    #
    # ------------------------------------------------------------
 
    # Pixel track segment finding
    if flags.Tracking.doTrackSegmentsPixel:
        acc, ClusterSplitProbContainer = (
            SiSubDetTrackRecoCfg(flags, detector="Pixel",
                                 extensions_list=_extensions_list,
                                 ClusterSplitProbContainer=ClusterSplitProbContainer))
        result.merge(acc)
 
    # SCT track segment finding
    if flags.Tracking.doTrackSegmentsSCT:
        acc, ClusterSplitProbContainer = (
            SiSubDetTrackRecoCfg(flags, detector="SCT",
                                 extensions_list=_extensions_list,
                                 ClusterSplitProbContainer=ClusterSplitProbContainer))
        result.merge(acc)
 
    # TRT track segment finding
    if flags.Tracking.doTrackSegmentsTRT:
        result.merge(TRTTrackRecoCfg(flags, extensions_list=_extensions_list))
 
    flags_set = CombinedTrackingPassFlagSets(flags, resetCache=True)
 
    # Pre-processing for TRT phase in cosmics
    if flags.Beam.Type is BeamType.Cosmics:
        flagsCosmics = flags_set[0]
        result.merge(InDetCosmicsTrackRecoPreProcessingCfg(flagsCosmics))
 
    # ------------------------------------------------------------
    #
    # ----------- Main passes for standard reconstruction
    #
    # ------------------------------------------------------------
 
    # Tracks to be ultimately merged in InDetTrackParticle collection
    InputCombinedInDetTracks = []
    # Includes also tracks which end in standalone TrackParticle collections
    InputExtendedInDetTracks = []
    ClusterSplitProbContainer = ""
    StatTrackCollections = []  # To be passed to the InDetRecStatistics alg
    StatTrackTruthCollections = []
    isPrimaryPass = True
 
    printPrimaryConfig(flags)
 
    for current_flags in flags_set:
        printActiveConfig(current_flags)
 
        extension = (
            "" if isPrimaryPass else
            current_flags.Tracking.ActiveConfig.extension)
        _extensions_list.append(extension)
        
        # ---------------------------------------
        # ----   TRTStandalone pass
        # ---------------------------------------
 
        if flags.Tracking.doTRTStandalone and extension == "TRTStandalone":
            result.merge(TRTStandalonePassRecoCfg(
                current_flags,
                InputCombinedInDetTracks=InputCombinedInDetTracks,
                InputExtendedInDetTracks=InputExtendedInDetTracks,
                StatTrackCollections=StatTrackCollections,
                StatTrackTruthCollections=StatTrackTruthCollections))
 
            continue  # Skip rest of config for the TRTStandalone pass
 
        # ---------------------------------------
        # ----   All the passes but TRTStandalone
        # ---------------------------------------
 
        acc, ClusterSplitProbContainer = TrackRecoPassCfg(
            current_flags, extension=extension,
            doTrackingSiPattern=not(isPrimaryPass and
                                    flags.Beam.Type is BeamType.Cosmics),
            InputCombinedInDetTracks=InputCombinedInDetTracks,
            InputExtendedInDetTracks=InputExtendedInDetTracks,
            StatTrackCollections=StatTrackCollections,
            StatTrackTruthCollections=StatTrackTruthCollections,
            ClusterSplitProbContainer=ClusterSplitProbContainer)
        result.merge(acc)
 
        # ---------------------------------------
        # --- A few passes, only after primary pass
        # ---------------------------------------
 
        if isPrimaryPass:
 
            # ---------------------------------------
            # --- TRT Segments
            # ---------------------------------------
 
            if flags.Tracking.doTRTSegments:
                from InDetConfig.TRTSegmentFindingConfig import (
                    TRTSegmentFindingCfg)
                # With RoI-limited Si overlay the removed pileup tracks also mask their
                # hits for back-tracking
                RemovedTracks = TrackOverlayRoIRemovedTracksName(current_flags)
                result.merge(TRTSegmentFindingCfg(
                    current_flags,
                    InputCollections=InputCombinedInDetTracks,
                    ExtraAssociationTracks=[RemovedTracks] if RemovedTracks else None))
 
            # ---------------------------------------
            # --- BackTracking
            # ---------------------------------------
            
            if flags.Tracking.doBackTracking:
                acc, ClusterSplitProbContainer = BackTrackingRecoCfg(
                    current_flags,
                    InputCombinedInDetTracks=InputCombinedInDetTracks,
                    InputExtendedInDetTracks=InputExtendedInDetTracks,
                    StatTrackCollections=StatTrackCollections,
                    StatTrackTruthCollections=StatTrackTruthCollections,
                    ClusterSplitProbContainer=ClusterSplitProbContainer)
                result.merge(acc)
 
            # ---------------------------------------
            # --- PseudoTracking
            # ---------------------------------------
 
            if (flags.Tracking.doTruth and
                (flags.Tracking.doPseudoTracking or
                 flags.Tracking.doIdealPseudoTracking)):
 
                from TrkConfig.TrkTruthTrackAlgsConfig import TruthTrackingCfg
                result.merge(TruthTrackingCfg(current_flags))
 
            isPrimaryPass = False
 
    # ----------------------------------------------------
    # --- Loop over tracking passes is done, final configs
    # ----------------------------------------------------
 
    result.merge(
        TrackFinalCfg(flags,
                      InputCombinedInDetTracks=InputCombinedInDetTracks,
                      StatTrackCollections=StatTrackCollections,
                      StatTrackTruthCollections=StatTrackTruthCollections))
 
    if (flags.Tracking.doPseudoTracking or
        flags.Tracking.doIdealPseudoTracking):
        result.merge(PseudoTrackFinalCfg(flags))
 
    if flags.Tracking.doTIDE_AmbiTrackMonitoring:
        result.merge(ObserverTrackFinalCfg(flags))
 
    if flags.Tracking.doStoreTrackSeeds:
        result.merge(TrackSeedsFinalCfg(flags))
 
    if flags.Tracking.doStoreSiSPSeededTracks:
        result.merge(SiSPSeededTracksFinalCfg(flags))
 
    # ---------------------------------------
    # --- Primary vertexing
    # ---------------------------------------
 
    if flags.Tracking.doVertexFinding:
        from InDetConfig.InDetPriVxFinderConfig import primaryVertexFindingCfg
        result.merge(primaryVertexFindingCfg(flags))
 
    if flags.Tracking.doStats:
        result.merge(InDetStatsCfg(
            flags_set[0], # Use cuts from primary pass
            StatTrackCollections=StatTrackCollections,
            StatTrackTruthCollections=StatTrackTruthCollections))
 
    # ---------------------------------------
    # --- Extra optional decorations
    # ---------------------------------------
 
    if flags.Tracking.doV0Finder:
        from InDetConfig.InDetV0FinderConfig import InDetV0FinderCfg
        result.merge(InDetV0FinderCfg(flags))
 
    if (flags.Tracking.writeExtendedSi_PRDInfo or
        flags.Tracking.writeExtendedTRT_PRDInfo):
        result.merge(ExtendedPRDInfoCfg(flags))
 
    # output
    from InDetConfig.InDetTrackOutputConfig import InDetTrackRecoOutputCfg
    result.merge(InDetTrackRecoOutputCfg(flags, _extensions_list))
 
    # Special configuration for HI
    from TrkConfig.TrkConfigFlags import PrimaryPassConfig
    if flags.Tracking.PrimaryPassConfig is PrimaryPassConfig.HeavyIon and \
       flags.Tracking.doLowPt:
        from InDetConfig.InDetHeavyIonSpecialConfig import InDetHeavyIonSpecialCfg
        result.merge(InDetHeavyIonSpecialCfg(flags))
 
    result.printConfig(withDetails=False,
                       summariseProps=False)
    return result
 
# Run with python -m InDetConfig.TrackRecoConfig
# Works with Data RAW (Format.BS), MC RDO, and MC ESD
def TrackRecoConfigTest(flags=None):
 
    store_config = False
    if flags is None:
        store_config = True
        from AthenaConfiguration.AllConfigFlags import initConfigFlags
        flags = initConfigFlags()
 
        # Disable calo for this test
        from InDetConfig.ConfigurationHelpers import OnlyTrackingPreInclude
        OnlyTrackingPreInclude(flags)
 
        from AthenaConfiguration.TestDefaults import defaultTestFiles, defaultConditionsTags
        flags.Input.Files = defaultTestFiles.RDO_RUN3
        flags.IOVDb.GlobalTag = defaultConditionsTags.RUN3_MC
        flags.Exec.MaxEvents = 1
 
        flags.fillFromArgs()
        flags.lock()
 
    from AthenaConfiguration.MainServicesConfig import MainServicesCfg
    top_acc = MainServicesCfg(flags)
 
    if flags.Input.Format is not Format.BS:
        from AthenaPoolCnvSvc.PoolReadConfig import PoolReadCfg
        top_acc.merge(PoolReadCfg(flags))
 
    if flags.Detector.EnableCalo:
        if flags.Input.Format is Format.BS:
            from CaloRec.CaloRecoConfig import CaloRecoCfg
            top_acc.merge(CaloRecoCfg(flags)) 
        else:
            from CaloRec.CaloTopoClusterConfig import CaloTopoClusterCfg
            top_acc.merge(CaloTopoClusterCfg(flags))
 
    if flags.Input.Format is not Format.BS:
        # TODO find better way to determine RDO vs ESD input?
        if "PixelRDOs" in flags.Input.Collections:
            if "EventInfo" not in flags.Input.Collections:
                from xAODEventInfoCnv.xAODEventInfoCnvConfig import EventInfoCnvAlgCfg
                top_acc.merge(EventInfoCnvAlgCfg(flags))
 
            if flags.Input.isMC:
                from xAODTruthCnv.xAODTruthCnvConfig import GEN_AOD2xAODCfg
                top_acc.merge(GEN_AOD2xAODCfg(flags))
        else:
            if flags.Tracking.doTruth :
                from xAODTruthCnv.RedoTruthLinksConfig import RedoTruthLinksAlgCfg
                top_acc.merge( RedoTruthLinksAlgCfg(flags) )
 
    top_acc.merge(InDetTrackRecoCfg(flags))
 
    if store_config:
        from AthenaCommon.Constants import DEBUG
        top_acc.foreach_component("AthEventSeq/*").OutputLevel = DEBUG
        top_acc.printConfig(withDetails=True, summariseProps=True)
        top_acc.store(open("TrackRecoConfig.pkl", "wb"))
 
    import sys
    if "--norun" not in sys.argv:
        sc = top_acc.run()
        if sc.isFailure():
            sys.exit(-1)
 
if __name__ == "__main__":
    TrackRecoConfigTest()