from diceplayer.player import Player

from pathlib import Path
import argparse
import logging
import pickle
import sys


__VERSION = "v0.0.1"

if __name__ == "__main__":
    """
    Read and store the arguments passed to the program
    and set the usage and help messages
    """

    parser = argparse.ArgumentParser(prog="Diceplayer")
    parser.add_argument(
        "-c", "--continue", dest="opt_continue", default=False, action="store_true"
    )
    parser.add_argument(
        "-v", "--version", action="version", version="diceplayer-" + __VERSION
    )
    parser.add_argument(
        "-i", "--input",
        dest="infile",
        default="control.yml",
        metavar="INFILE",
        help="input file of diceplayer [default = control.in]"
    )
    parser.add_argument(
        "-o", "--output",
        dest="outfile",
        default="run.log",
        metavar="OUTFILE",
        help="output file of diceplayer [default = run.log]"
    )
    args = parser.parse_args()

    # Open OUTFILE for writing and print keywords and initial info

    try:

        pickle_path = Path("latest-step.pkl")
        if args.opt_continue and pickle_path.exists():
            with open(pickle_path) as pickle_file:
                save = pickle.load(pickle_file)

        output_path = Path(args.outfile)
        if output_path.exists():
            output_path.rename(str(output_path)+".backup")

    except Exception as err:
        sys.exit(err)

    logging.basicConfig(
        filename=args.outfile,
        format='%(message)s',
        level=logging.INFO
    )

    player = Player(args.infile)

    player.start()