"""
Config file for Rougail-doc

Silique (https://www.silique.fr)
Copyright (C) 2024

distribued with GPL-2 or later license

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
"""
from pathlib import Path
from rougail.utils import load_modules
# from .utils import _


OUTPUTS = None


def get_outputs() -> None:
    module_name = 'rougail.doc.output'
    outputs = {}
    for path in (Path(__file__).parent / 'output').iterdir():
        name = path.name
        if not name.endswith(".py") or name.endswith("__.py"):
            continue
        module = load_modules(module_name + '.' + name, str(path))
        if "Formater" not in dir(module):
            continue
        level = module.Formater.level
        if level in outputs:
            raise Exception(f'duplicated level rougail-doc for output "{level}": {module.Formater.name} and {outputs[level].name}')
        outputs[module.Formater.level] = module.Formater
    return {outputs[level].name: outputs[level] for level in sorted(outputs)}


class OutPuts:  # pylint: disable=R0903
    """Transformations applied on a object instance"""

    def __init__(
        self,
    ) -> None:
        global OUTPUTS
        if OUTPUTS is None:
            OUTPUTS = get_outputs()

    def get(self) -> dict:
        return OUTPUTS


def get_rougail_config(*,
                       backward_compatibility=True,
                       ) -> dict:
    outputs = list(OutPuts().get())
    output_format_default = outputs[0]
    rougail_options = """
doc:
  description: Configuration rougail-doc
  disabled:
    type: jinja
    jinja: |
      {% if step.output != 'doc' %}
      disabled
      {% endif %}
  title_level:
    description: Start title level
    alternative_name: dt
    default: 1
  output_format:
    description: Generate document in format
    alternative_name: do
    default: output_format_default
    choices:
""".replace('output_format_default', output_format_default)
    for output in outputs:
        rougail_options += f"      - {output}\n"
    return {'name': 'doc',
            'process': 'output',
            'options': rougail_options,
            'allow_user_data': False,
            'level': 50,
            }


__all__ = ("OutPuts", 'get_rougail_config')