"""Actev module: process-chunk

Actev modules are used to parse actev commands in order to get arguments
before calling associated entry point methods to execute systems.

Warning: this file should not be modified: see src/entry_points to add your
source code.
"""

import logging

from diva_evaluation_cli.bin.commands.actev_command import ActevCommand
from diva_evaluation_cli.src.entry_points.actev_process_chunk import \
    entry_point


class ActevProcessChunk(ActevCommand):
    """Process a chunk.

    Command args:
        * chunk-id or i:           chunk id
        * system-cache-dir or s:   path to system cache directory
    """

    def __init__(self):
        super(ActevProcessChunk, self).__init__('process-chunk', entry_point)

    def cli_parser(self, arg_parser):
        """Configure the description and the arguments (positional and
        optional) to parse.

        Args:
            arg_parser(:obj:`ArgParser`): Python arg parser to describe how to
                parse the command

        """
        arg_parser.description = "Process a chunk"
        required_named = arg_parser.add_argument_group(
            'required named arguments')

        required_named.add_argument(
            "-i", "--chunk-id", help="chunk id", required=True, type=str)
        arg_parser.add_argument(
            "-s", "--system-cache-dir", help="path to system cache directory")
        arg_parser.set_defaults(func=ActevProcessChunk.command, object=self)
