import ctypes
import platform
import os

_lib_core = None
_lib_output = None

def load_epanet():
    _platform = platform.system()
    if _platform != "Windows":
        raise Exception(f'Platform {_platform} unsupported (not yet)')
    _lib_core = ctypes.CDLL("./epanet2.dll")
    #version = ctypes.c_int()
    #lib_core.EN_getversion(ctypes.byref(version))
    #print(f'Load EPANET {version}')
    _lib_output = ctypes.CDLL("./epanet-output.dll")


# readable True => json, False => binary output
def run_epanet(project: str, readable: bool = True) -> str:
    dir = os.path.dirname(os.getcwd())
    exe = os.path.join(os.path.join(dir, 'epanet'), 'runepanet.exe')
    inp = os.path.join(os.path.join(dir, 'inp'), project + '.inp')
    rpt = os.path.join(os.path.join(dir, 'temp'), project + '.rpt')
    opt = os.path.join(os.path.join(dir, 'temp'), project + '.opt')
    command = f'{exe} {inp} {rpt} {opt}'
    print(command)
    os.popen(command)
    return ''

if __name__ == '__main__':
    load_epanet()
    run_epanet('net3')