import getopt
import sys

import core.utils
from core.sheerka.Sheerka import Sheerka
from repl.SheerkaPrompt import SheerkaPrompt


def usage():
    print("Sheerka v0.1\n")
    print("usage:")
    print(sys.argv[0] + "[-hdl:] command | [-i]")


def main(argv):
    debug = False
    interactive = False
    loggers = set()

    try:
        opts, args = getopt.getopt(argv, "hdl:i", ["help", "debug", "logger=", "interactive"])

        for o, a in opts:
            if o in ('-h', "--help"):
                usage()
                return True
            if o in ('-d', "--debug"):
                debug = True
            if o in ('-l', '--logger'):
                loggers.add(a)
            if o in ('-i', '--interactive'):
                interactive = True
    except getopt.GetoptError:
        usage()
        sys.exit(2)

    sheerka = Sheerka(debug=debug, loggers=loggers)
    sheerka.initialize()

    if interactive:
        result = SheerkaPrompt(sheerka).run()
        sys.exit(result)
    else:
        _in = core.utils.sysarg_to_string(args)
        result = sheerka.evaluate_user_input(_in)
        if not sheerka.enable_process_return_values:
            sheerka.print(result)

        return result[-1].status if len(result) > 0 else 1


if __name__ == '__main__':
    res = main(sys.argv[1:])
    exit(0 if res else 1)