import argparse
from pathlib import Path
from colligere.analizer import Analizer


def parse(args=None):
    parser = argparse.ArgumentParser(
        prog="colligere",
        description="Tool for metadata in JSON Lines.",
        epilog="Under GPLv3.",
    )
    parser.add_argument(
        "-q",
        "--quiet",
        default=False,
        action="store_true",
        help="avoid prints; ignored by --debug",
    )
    parser.add_argument(
        "--debug",
        default=False,
        action="store_true",
        help="stop on exception for debugging",
    )
    subparsers = parser.add_subparsers(
        required=True,
        dest="subcmd",
        title="subcommands",
        help="Available tasks to perfom; run 'SUBCMD --help' for more info",
    )
    parse_analize(subparsers)
    parser.add_argument("jsonl", type=Path, help="JSON lines file")
    return parser.parse_args(args)


def parse_analize(subparsers):
    analizer = subparsers.add_parser(
        "analize",
        aliases=["a"],
        description="Analize keys and values from JSON lines.",
        help="analize keys and values",
    )
    analizer.add_argument(
        "-i",
        "--items",
        type=int,
        default=1000,
        dest="sample_len",
        help="random sample items size; 1000 by default",
    )
    analizer.add_argument(
        "-k",
        "--key",
        default=[],
        dest="keys",
        action="append",
        metavar="KEY",
        help="key value to analize",
    )
    analizer.add_argument(
        "-ky",
        "--key-axis",
        default=None,
        dest="ky",
        metavar="KEY",
        help="like -k, but its values are used for y-axis",
    )
    analizer.add_argument(
        "-d",
        "--directory",
        type=Path,
        default=Path.cwd(),
        dest="out_dir",
        metavar="DIR",
        help="CSV output directory; CWD by default",
    )


def main(args=None):
    args = vars(parse(args))
    subcmd = args["subcmd"]
    del args["subcmd"]
    match subcmd:
        case "analize":
            Analizer(**args)