import FWCore.ParameterSet.Config as cms

# Link to datacards:
# https://github.com/cms-sw/genproductions/blob/master/bin/MadGraph5_aMCatNLO/cards/production/2017/13TeV/g2HDM/cgbh

externalLHEProducer = cms.EDProducer("ExternalLHEProducer",
    args = cms.vstring('/cvmfs/cms.cern.ch/phys_generator/gridpacks/slc7_amd64_gcc700/13TeV/madgraph/V5_2.6.5/cgbh-new/cgbh_H_M1000_rhott06_rhotc04_rhotu00_slc7_amd64_gcc10_CMSSW_12_4_8_tarball.tar.xz'),
    nEvents = cms.untracked.uint32(5000),
    numberOfParameters = cms.uint32(1),
    outputFile = cms.string('cmsgrid_final.lhe'),
    generateConcurrently = cms.untracked.bool(True),
    scriptName = cms.FileInPath('GeneratorInterface/LHEInterface/data/run_generic_tarball_cvmfs.sh')
)

from Configuration.Generator.Pythia8CommonSettings_cfi import *
from Configuration.Generator.MCTunes2017.PythiaCP5Settings_cfi import *
from Configuration.Generator.PSweightsPythia.PythiaPSweightsSettings_cfi import *

generator = cms.EDFilter("Pythia8ConcurrentHadronizerFilter",
                         maxEventsToPrint = cms.untracked.int32(1),
                         pythiaPylistVerbosity = cms.untracked.int32(1),
                         filterEfficiency = cms.untracked.double(1.0),
                         pythiaHepMCVerbosity = cms.untracked.bool(False),
                         comEnergy = cms.double(13000.),
                         PythiaParameters = cms.PSet(
        pythia8CommonSettingsBlock,
        pythia8CP5SettingsBlock,
        pythia8PSweightsSettingsBlock,
        JetMatchingParameters = cms.vstring(
            'JetMatching:setMad = off',
            'JetMatching:scheme = 1',
            'JetMatching:merge = on',
            'JetMatching:jetAlgorithm = 2',
            'JetMatching:etaJetMax = 5.',
            'JetMatching:coneRadius = 1.',
            'JetMatching:slowJetPower = 1',
            'JetMatching:qCut = 45.', #this is the actual merging scale
            'JetMatching:nQmatch = 5', #4 corresponds to 4-flavour scheme (no matching of b-quarks), 5 for 5-flavour scheme
            'JetMatching:nJetMax = 2', #number of partons in born matrix element for highest multiplicity
            'JetMatching:doShowerKt = off', #off for MLM matching, turn on for shower-kT matching
            ),
        parameterSets = cms.vstring('pythia8CommonSettings',
				    				'pythia8CP5Settings',
                                    'JetMatchingParameters',
                                    'pythia8PSweightsSettings',
                                    )
        
        )
)

ProductionFilterSequence = cms.Sequence(generator)