# -*- coding: utf-8 -*-
"""Avalon/Pyblish plugin tools."""
import os
import inspect
import logging

from .api import config


log = logging.getLogger(__name__)


def filter_pyblish_plugins(plugins):
    """Filter pyblish plugins by presets.

    This servers as plugin filter / modifier for pyblish. It will load plugin
    definitions from presets and filter those needed to be excluded.

    Args:
        plugins (dict): Dictionary of plugins produced by :mod:`pyblish-base`
            `discover()` method.

    """
    from pyblish import api

    host = api.current_host()

    presets = config.get_presets().get('plugins', {})

    # iterate over plugins
    for plugin in plugins[:]:
        # skip if there are no presets to process
        if not presets:
            continue

        file = os.path.normpath(inspect.getsourcefile(plugin))
        file = os.path.normpath(file)

        # host determined from path
        host_from_file = file.split(os.path.sep)[-3:-2][0]
        plugin_kind = file.split(os.path.sep)[-2:-1][0]

        try:
            config_data = presets[host]["publish"][plugin.__name__]
        except KeyError:
            try:
                config_data = presets[host_from_file][plugin_kind][plugin.__name__]  # noqa: E501
            except KeyError:
                continue

        for option, value in config_data.items():
            if option == "enabled" and value is False:
                log.info('removing plugin {}'.format(plugin.__name__))
                plugins.remove(plugin)
            else:
                log.info('setting {}:{} on plugin {}'.format(
                    option, value, plugin.__name__))

                setattr(plugin, option, value)