import os

from jinja2 import DictLoader, Environment

__path__ = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__), ".."))

apidoc_root = "docs/reference/api"


class Module:
    def __init__(self, name, title=None, *, automodule_options=None):

        self.name = name
        self.title = title or " ".join(map(str.title, self.name.split(".")[1:]))
        self.automodule_options = automodule_options or list()

    def __repr__(self):
        return "<{} ({})>".format(self.title, self.name)

    def asdict(self):
        return {"name": self.name, "title": self.title, "automodule_options": self.automodule_options}

    def get_path(self):
        return os.path.join(__path__, apidoc_root, *self.name.split(".")) + ".rst"


modules = [
    Module("bonobo", title="Bonobo"),
    Module("bonobo.config"),
    Module("bonobo.constants", automodule_options=["no-members"]),
    Module("bonobo.execution"),
    Module("bonobo.execution.contexts"),
    Module("bonobo.execution.events"),
    Module("bonobo.execution.strategies"),
    Module("bonobo.util"),
]


def underlined_filter(txt, chr):
    return txt + "\n" + chr * len(txt)


env = Environment(
    loader=DictLoader(
        {
            "module": """
{{ (':mod:`'~title~' <'~name~'>`') | underlined('=') }}

.. currentmodule:: {{ name }}

:Module: :mod:`{{ name }}`

.. automodule:: {{ name }}
{% for opt in automodule_options %}   :{{ opt }}:{{ "\n" }}{% endfor %}
    """[
                1:-1
            ]
            + "\n"
        }
    )
)
env.filters["underlined"] = underlined_filter

for module in modules:
    with open(module.get_path(), "w+") as f:
        f.write(env.get_template("module").render(module.asdict()))