"""Simulates an example network of 450 cell receiving two kinds of exernal input as defined in the configuration file"""
import os
import sys
from bmtk.simulator import bionet


def run(config_path):
    conf = bionet.Config.from_json(config_path, validate=True)
    conf.build_env()

    graph = bionet.BioNetwork.from_config(conf)
    sim = bionet.BioSimulator.from_config(conf, network=graph)
    sim.run()
    bionet.nrn.quit_execution()


if __name__ == '__main__':
    # Find the appropriate config.json file
    config_path = None
    if __file__ != sys.argv[-1]:
        config_path = sys.argv[-1]
        if not os.path.exists(config_path):
            raise AttributeError('configuration file {} does not exist.'.format(config_path))
    else:
        for cfg_path in ['config.json', 'config.simulation.json']:
            if os.path.exists(cfg_path):
                config_path = cfg_path
                break
        else:
            raise AttributeError('Could not find configuration json file.')

    run(config_path)
