#!/usr/bin/env python
from __future__ import absolute_import, division, print_function
import argparse
# import detector simulation modules
import NuRadioReco.modules.efieldToVoltageConverter
import NuRadioReco.modules.trigger.highLowThreshold
import NuRadioReco.modules.trigger.simpleThreshold
import NuRadioReco.modules.channelResampler
import NuRadioReco.modules.channelBandPassFilter
import NuRadioReco.modules.channelGenericNoiseAdder
from NuRadioReco.utilities import units
from NuRadioMC.simulation import simulation2 as simulation
import logging
import os
logging.basicConfig(level=logging.WARNING)
logger = logging.getLogger("runstrawman")

# initialize detector sim modules
efieldToVoltageConverter = NuRadioReco.modules.efieldToVoltageConverter.efieldToVoltageConverter()
efieldToVoltageConverter.begin()
triggerSimulatorHighLow = NuRadioReco.modules.trigger.highLowThreshold.triggerSimulator()
triggerSimulatorSimple = NuRadioReco.modules.trigger.simpleThreshold.triggerSimulator()
channelResampler = NuRadioReco.modules.channelResampler.channelResampler()
channelBandPassFilter = NuRadioReco.modules.channelBandPassFilter.channelBandPassFilter()
channelGenericNoiseAdder = NuRadioReco.modules.channelGenericNoiseAdder.channelGenericNoiseAdder()

class mySimulation(simulation.simulation):


    def _detector_simulation(self):
        # start detector simulation
        if(bool(self._cfg['signal']['zerosignal'])):
            self._increase_signal(None, 0)

        efieldToVoltageConverter.run(self._evt, self._station, self._det)  # convolve efield with antenna pattern
        # downsample trace to internal simulation sampling rate (the efieldToVoltageConverter upsamples the trace to
        # 20 GHz by default to achive a good time resolution when the two signals from the two signal paths are added)
        channelResampler.run(self._evt, self._station, self._det, sampling_rate=1. / self._dt)

        if bool(self._cfg['noise']):
            Vrms = self._Vrms / (self._bandwidth /( 2.5 * units.GHz))** 0.5  # normalize noise level to the bandwidth its generated for
            channelGenericNoiseAdder.run(self._evt, self._station, self._det, amplitude=Vrms, min_freq=0 * units.MHz,
                                         max_freq=2.5 * units.GHz, type='rayleigh')

        # bandpass filter trace, the upper bound is higher then the sampling rate which makes it just a highpass filter
        channelBandPassFilter.run(self._evt, self._station, self._det, passband=[80 * units.MHz, 1000 * units.GHz],
                                  filter_type='butter', order=2)
        channelBandPassFilter.run(self._evt, self._station, self._det, passband=[0, 500 * units.MHz],
                                  filter_type='butter', order=10)

        # run a high/low trigger on the 4 downward pointing LPDAs
        triggerSimulatorHighLow.run(self._evt, self._station, self._det,
                                    threshold_high=2 * self._Vrms,
                                    threshold_low=-2 * self._Vrms,
                                    triggered_channels=None,  # select the LPDA channels
                                    number_concidences=1,  # 2/4 majority logic
                                    trigger_name='highlow_2sigma')

        # downsample trace back to detector sampling rate
#         channelResampler.run(self._evt, self._station, self._det, sampling_rate=self._sampling_rate_detector)


path = os.path.dirname(os.path.abspath(__file__))

parser = argparse.ArgumentParser(description='Run NuRadioMC simulation')
parser.add_argument('inputfilename', type=str,
                    help='path to NuRadioMC input event list')
parser.add_argument('detectordescription', type=str,
                    help='path to file containing the detector description')
parser.add_argument('config', type=str,
                    help='NuRadioMC yaml config file')
parser.add_argument('outputfilename', type=str,
                    help='hdf5 output filename')
parser.add_argument('outputfilenameNuRadioReco', type=str, nargs='?', default=None,
                    help='outputfilename of NuRadioReco detector sim file')
args = parser.parse_args()

sim = mySimulation(eventlist=os.path.join(path,args.inputfilename),
                            outputfilename=os.path.join(path,args.outputfilename),
                            detectorfile=os.path.join(path,args.detectordescription),
                            outputfilenameNuRadioReco=os.path.join(path,args.outputfilenameNuRadioReco),
                            config_file=os.path.join(path,args.config))
sim.run()

