import FWCore.ParameterSet.Config as cms

externalLHEProducer = cms.EDProducer("ExternalLHEProducer",
    args = cms.vstring('/cvmfs/cms.cern.ch/phys_generator/gridpacks/2017/13TeV/madgraph/V5_2.6.5/AToZhToLLTT_01j_4f_M225/v2/AToZhToLLTT_01j_4f_M225_slc6_amd64_gcc630_CMSSW_9_3_16_tarball.tar.xz'),
    nEvents = cms.untracked.uint32(5000),
    numberOfParameters = cms.uint32(1),
    outputFile = cms.string('cmsgrid_final.lhe'),
    scriptName = cms.FileInPath('GeneratorInterface/LHEInterface/data/run_generic_tarball_cvmfs.sh')
)

#Link to datacards:
#https://github.com/cms-sw/genproductions/tree/2545b044844ec224e71f163a83e04489da912051/bin/MadGraph5_aMCatNLO/cards/production/13TeV/AToZhToLLTT_01j_4f/
  
from Configuration.Generator.Pythia8CommonSettings_cfi import *
from Configuration.Generator.MCTunes2017.PythiaCP5Settings_cfi import *
from Configuration.Generator.PSweightsPythia.PythiaPSweightsSettings_cfi import *

generator = cms.EDFilter("Pythia8HadronizerFilter",
    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,
        processParameters = 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 = 20.', #this is the actual merging scale
            'JetMatching:qCutME = 10.',#this must match the ptj cut in the lhe generation step (note: default PYTHIA8 = 10 GeV)
            'JetMatching:nQmatch = 4', #4 corresponds to 4-flavour scheme (no matching of b-quarks), 5 for 5-flavour scheme
            'JetMatching:nJetMax = 1', #number of partons in born matrix element for highest multiplicity
            'JetMatching:doShowerKt = off', #off for MLM matching, turn on for shower-kT matching
            'TimeShower:mMaxGamma = 10.0', # switch back to default PYTHIA8 value, DYJet uses 4.0
            #'SLHA:useDecayTable = off',
            '25:m0 = 125.0',
            '25:onMode = off',
            '25:onIfMatch = 15 -15'
        ),
        parameterSets = cms.vstring('pythia8CommonSettings',
                                    'pythia8CP5Settings',
                                    'pythia8PSweightsSettings',
                                    'processParameters',
                                    )
    )
)