import FWCore.ParameterSet.Config as cms
from Configuration.Generator.Pythia8CommonSettings_cfi import *
from Configuration.Generator.MCTunes2017.PythiaCP5Settings_cfi import *
from GeneratorInterface.EvtGenInterface.EvtGenSetting_cff import *

_generator = cms.EDFilter("Pythia8GeneratorFilter",
                         comEnergy = cms.double(13000.0),
                         pythiaHepMCVerbosity = cms.untracked.bool(False),
                         maxEventsToPrint = cms.untracked.int32(0),
                         pythiaPylistVerbosity = cms.untracked.int32(0),
                         ExternalDecays = cms.PSet(
        EvtGen130 = cms.untracked.PSet(
            decay_table = cms.string('GeneratorInterface/EvtGenInterface/data/DECAY_2014_NOLONGLIFE.DEC'),
            particle_property_file = cms.FileInPath('GeneratorInterface/EvtGenInterface/data/evt_2014.pdl'),
            user_decay_embedded= cms.vstring(
"""

Particle  B0             5.2796400e+00  0.0000000e+00                                                                                                        
Particle  anti-B0        5.2796400e+00  0.0000000e+00                                                                                                        
Particle  J/psi          3.0969000e+00  9.2900000e-05                                                                                                        
Particle  rho0           7.7526000e-01  1.4910000e-01   


## my decay
Alias      MyB0    B0
Alias      Myanti-B0   anti-B0
ChargeConj Myanti-B0   MyB0
#
Alias      MyJpsi J/psi
ChargeConj MyJpsi MyJpsi
#
Alias       Mypsi(2S)  psi(2S)
ChargeConj  Mypsi(2S)  Mypsi(2S)
#
Decay MyJpsi
1.000  mu+       mu-                     PHOTOS VLL;
Enddecay
#
Decay MyB0
1.000     Mypsi(2S) K_S0         PHSP;
Enddecay
#
Decay Myanti-B0
1.000     Mypsi(2S) K_S0         PHSP;
Enddecay
#
Decay Mypsi(2S)
1.000   MyJpsi  pi+   pi-         VVPIPI;
Enddecay
#
End"""
     ),
            list_forced_decays = cms.vstring('MyB0','Myanti-B0'),
            operates_on_particles = cms.vint32(),
            convertPythiaCodes = cms.untracked.bool(False)
            ),
        parameterSets = cms.vstring('EvtGen130')
        ),
        PythiaParameters = cms.PSet(
        pythia8CommonSettingsBlock,
        pythia8CP5SettingsBlock,
        processParameters = cms.vstring(
            "SoftQCD:nonDiffractive = on",
            'PTFilter:filter = on', # this turn on the filter
            'PTFilter:quarkToFilter = 5', # PDG id of q quark
            'PTFilter:scaleToFilter = 1.0'),
        parameterSets = cms.vstring(
            'pythia8CommonSettings',
            'pythia8CP5Settings',
            'processParameters',
        )
    )
)

from GeneratorInterface.Core.ExternalGeneratorFilter import ExternalGeneratorFilter
generator = ExternalGeneratorFilter(_generator)

generator.PythiaParameters.processParameters.extend(EvtGenExtraParticles)

###########
# Filters #
###########
bfilter = cms.EDFilter(
        "PythiaFilter",
        MaxEta = cms.untracked.double(9999.),
        MinEta = cms.untracked.double(-9999.),
        ParticleID = cms.untracked.int32(511)
        )

jpsifilter = cms.EDFilter(
        "PythiaDauVFilter",
        verbose         = cms.untracked.int32(0), 
        NumberDaughters = cms.untracked.int32(2), 
        MotherID        = cms.untracked.int32(100443),  
        ParticleID      = cms.untracked.int32(443),  
    DaughterIDs     = cms.untracked.vint32(13, -13),
        MinPt           = cms.untracked.vdouble(2.5, 2.5), 
        MinEta          = cms.untracked.vdouble(-2.5, -2.5), 
        MaxEta          = cms.untracked.vdouble( 2.5,  2.5)
        )

xxxfilter = cms.EDFilter(
        "PythiaDauVFilter",
        verbose         = cms.untracked.int32(0), 
        NumberDaughters = cms.untracked.int32(3), 
        MotherID        = cms.untracked.int32(511),  
        ParticleID      = cms.untracked.int32(100443),  
    DaughterIDs     = cms.untracked.vint32(443, 211, -211),
        MinPt           = cms.untracked.vdouble(5, 0.3, 0.3), 
        MinEta          = cms.untracked.vdouble(-9999, -9999, -9999), 
        MaxEta          = cms.untracked.vdouble( 9999,  9999,  9999)
        )

decayfilter = cms.EDFilter(
        "PythiaDauVFilter",
        verbose         = cms.untracked.int32(0), 
        NumberDaughters = cms.untracked.int32(2), 
        MotherID        = cms.untracked.int32(0),  
        ParticleID      = cms.untracked.int32(511),  
    DaughterIDs     = cms.untracked.vint32(100443, 310),
        MinPt           = cms.untracked.vdouble(5., 0.4), 
        MinEta          = cms.untracked.vdouble(-9999., -9999.), 
        MaxEta          = cms.untracked.vdouble( 9999.,  9999.)
        )

ProductionFilterSequence = cms.Sequence(generator*bfilter*jpsifilter*xxxfilter*decayfilter)