import argparse

import common.launch_utils as lu


def parse_args():
    def str2bool(v):
        if v.lower() in ('yes', 'true', 't', 'y', '1'):
            return True
        elif v.lower() in ('no', 'false', 'f', 'n', '0'):
            return False
        else:
            return argparse.ArgumentTypeError('Unsupported value encountered')
    parser = argparse.ArgumentParser()

    # General settings
    parser.add_argument("--mode", default="submitit", type=str,
                        help="Launch mode (submitit | accelerate | python)")
    parser.add_argument("--debug", default=False, type=str2bool,
                        help="Debug mode (True | False)")

    # Slurm settings
    parser.add_argument("--name", default="masaccio", type=str,
                        help="Name of the job")
    parser.add_argument("--run_file", default="run.py", type=str,
                        help="File position of launcher file")
    parser.add_argument("--job_dir", default="jobs/%j", type=str,
                        help="Directory to save the job logs")
    parser.add_argument("--num_nodes", default=1, type=int, 
                        help="Number of nodes to use in SLURM")
    parser.add_argument("--gpu_per_node", default=2, type=int,
                        help="Number of gpus to use in each node")
    parser.add_argument("--cpu_per_task", default=32, type=int,
                        help="Number of cpus to use for each gpu")
    parser.add_argument("--qos", default="level0", type=str,
                        help="Qos of the job")
    parser.add_argument("--partition", default="gpu", type=str,
                        help="Partition of the job")
    parser.add_argument("--account", default="research", type=str,
                        help="Account of the job")
    parser.add_argument("--mem_per_gpu", default=80, type=int,
                        help="Memory allocated for each gpu in GB")
    parser.add_argument("--time", default=24, type=int,
                        help="Time allocated for the job in hours")
    parser.add_argument("--port", default=1234, type=int,
                        help="Default port for distributed training")
    parser.add_argument("--nodelist", default="", type=str,
                        help="Default node id for distributed training")

    # Accelerate settings
    parser.add_argument("--mixed_precision", default="no", type=str,
                        help="Mixed precision training, options (no | fp16 | bf16)")

    # Additional Training settings
    parser.add_argument("--config", default="configs/default.yaml", type=str,
                        help="Path to the config file")
    parser.add_argument("opts", default=None, nargs=argparse.REMAINDER,
                        help="Additional options to change configureation")
    return parser.parse_args()


def main():
    args = parse_args()
    getattr(lu, f"{args.mode}_launch")(args)
    print("launched")


if __name__ == "__main__":
    main()