# Contians the arg parser options.
"""Contains the arg parser options."""


import argparse
import sys


def get_builder_args():
    """
    Gets the arguments passed in to the aom_builder main call

    :return: parser object
    """
    parser = argparse.ArgumentParser(
        description="Generates a valid yaml file "
        "for alerting on metrics. If you are "
        "familiar with the yaml structure for an "
        "alert you don't have to use this builder,"
        " it's just convenient")
    parser.add_argument('-q', '--query', help="The Kariosdb query string to "
                        "use")
    parser.add_argument(
        '-i', '--interval', type=int, default=60, help="The "
        "interval that the check will This value is in seconds")
    parser.add_argument('-t', '--threshold', '--upperthreshold', help="The "
                        "upper threshold is the value that when reached will "
                        "cause an depending on the threshold logic. "
                        "Use in conjunction with lower threshold to define a "
                        "normal band.")
    parser.add_argument(
        '-b',
        '--lowerthreshold',
        help="The lower threshold is the value that when reached will cause an "
        "alert depending on the threshold logic"
        "Use in conjunction with upper threshold to define a normal band.")
    parser.add_argument(
        '-m',
        '--measure',
        choices=[
            'gt',
            'lt',
            'eq'],
        help="The measure to use to compare the "
        "threshold to the values of the alerts")
    parser.add_argument(
        '-a',
        '--alert_config',
        help='A valid Yaml representation of your alerting block')
    parser.add_argument(
        '-l',
        '--log_level',
        type=int,
        default=0,
        help="The log level for the aom_builder run. "
        "[0=Error, 1=Info, 2=Debug]")
    parser.add_argument(
        '-p',
        '--port',
        type=int,
        default=8080,
        help="The port to run the webapp on")

    return args_to_dict(parser)


def get_tester_service_args():
    """
    Gets arguments passed into aom_tester.py
    Returns: parser object
    """
    parser = argparse.ArgumentParser(
        description="Parameters to start the alerting on metrics dummy tester "
        "service")
    parser.add_argument(
        '-l',
        '--log_level',
        type=int,
        default=0,
        help="The log level for the aom_service app"
        "[0=Error, 1=Info, 2=Debug]")
    parser.add_argument(
        '-a',
        '--alert_configs',
        default=None,
        help="If provided will override the folder location read from the "
        "config with the value passed in. Is helpful for testing and "
        "troubleshooting alerts")
    parser.add_argument(
        '--hostname',
        help="If provided, will override the actual hostname check with this "
        "value")
    parser.add_argument(
        '-p',
        '--port',
        type=int,
        default=8080,
        help="The port to run the webapp on")
    return args_to_dict(parser)


def get_service_args():
    """
    Gets arguments passed into aom_service.py
    Returns: parser object
    """
    parser = argparse.ArgumentParser(
        description="Parameters to start the alerting on metrics service")
    parser.add_argument(
        '-l',
        '--log_level',
        type=int,
        default=0,
        help="The log level for the aom_service app"
        "[0=Error, 1=Info, 2=Debug]")
    parser.add_argument(
        '-a',
        '--alert_configs',
        default=None,
        help="If provided will override the folder location read from the "
        "config with the value passed in. Is helpful for testing and "
        "troubleshooting alerts")
    parser.add_argument(
        '--alert_routing_lookup',
        default=None,
        help="If provided will override the folder used to fetch the alerts "
        "lookup configuration.")
    parser.add_argument(
        '-o',
        '--override',
        action='store_true',
        help="Overrides the check leader election value")
    parser.add_argument(
        '--hostname',
        help="If provided, will override the actual hostname check with this "
        "value")
    parser.add_argument(
        '-p',
        '--port',
        type=int,
        default=8080,
        help="The port to run the webapp on")
    return args_to_dict(parser)


def args_to_dict(parsed_args):
    """
    Converts the argument parser object to a dict
    Args:
        parsed_args: Arg parser object
    Returns:
        Dictionary of arguments
    """
    try:
        arg_list = parsed_args.parse_args()
        # RETURN A DICT OF ARGUMENTS
        arg_dict = dict()
        for val in vars(arg_list):
            arg_dict[val] = getattr(arg_list, val)
        return arg_dict
    except argparse.ArgumentError:
        parsed_args.print_help()
        sys.exit(1)