import argparse
import os


def args_parser():
    parser = argparse.ArgumentParser()

    parser.add_argument("--epochs", type=int, default=10, help="number of rounds of local training")
    parser.add_argument("--input_size", type=int, default=640, help="image input size")
    parser.add_argument("--config", type=str, default="./config/uav_cfg.yaml", help="Path to YAML config")

    args = parser.parse_args()

    args.local_rank = int(os.getenv("LOCAL_RANK", 0))
    args.world_size = int(os.getenv("WORLD_SIZE", 1))
    args.distributed = int(os.getenv("WORLD_SIZE", 1)) > 1

    return args