"""Init file for HassIO addons."""
import logging
import glob

import voluptuous as vol
from voluptuous.humanize import humanize_error

from ..const import (
    FILE_HASSIO_ADDONS, ATTR_NAME, ATTR_VERSION, ATTR_SLUG, ATTR_DESCRIPTON,
    ATTR_STARTUP, ATTR_BOOT, ATTR_MAP_SSL, ATTR_MAP_CONFIG, ATTR_MAP_DATA,
    ATTR_OPTIONS, ATTR_PORTS, STARTUP_ONCE, STARTUP_AFTER, STARTUP_BEFORE,
    BOOT_AUTO, BOOT_MANUAL, DOCKER_REPO)
from ..tools import read_json_file, write_json_file

_LOGGER = logging.getLogger(__name__)

ADDONS_REPO_PATTERN = "{}/*/config.json"

# pylint: disable=no-value-for-parameter
SCHEMA_ADDON_CONFIG = vol.Schema({
    vol.Required(ATTR_NAME): vol.Coerce(str),
    vol.Required(ATTR_VERSION): vol.Coerce(str),
    vol.Required(ATTR_SLUG): vol.Coerce(str),
    vol.Required(ATTR_DESCRIPTON): vol.Coerce(str),
    vol.Required(ATTR_STARTUP):
        vol.In([STARTUP_BEFORE, STARTUP_AFTER, STARTUP_ONCE]),
    vol.Required(ATTR_BOOT):
        vol.IN([BOOT_AUTO, BOOT_MANUAL]),
    vol.Optional(ATTR_PORTS): dict,
    vol.Required(ATTR_MAP_CONFIG): vol.Boolean(),
    vol.Required(ATTR_MAP_SSL): vol.Boolean(),
    vol.Required(ATTR_OPTIONS): dict,
})


class AddonsConfig(Config):
    """Config for addons inside HassIO."""

    def __init__(self, config):
        """Initialize docker base wrapper."""
        super().__init__(FILE_HASSIO_ADDONS)
        self.config
        self._addons_data = {}

    def read_addons_repo(self):
        """Read data from addons repository."""
        pattern = ADDONS_REPO_PATTERN.format(self.config.path_addons_repo)

        for addon in glob.iglob(pattern):
            try:
                addon_config = read_json_file(addon)

                addon_config = SCHEMA_ADDON_CONFIG(addon_config)
                self._addons_data[addon_config[ATTR_SLUG]] = addon_config

            except (OSError, KeyError):
                _LOGGER.warning("Can't read %s", addon)

            except vol.Invalid as ex:
                _LOGGER.warnign("Can't read %s -> %s.", addon,
                                humanize_error(addon_config, ex))

    @property
    def list_installed(self):
        """Return a list of installed addons."""
        return self._data.keys()

    def exists_addon(self, addon):
        """Return True if a addon exists."""
        return addon in self._addons_data

    def is_installed(self, addon):
        """Return True if a addon is installed."""
        return addon in self._data

    def set_install_addon(self, addon, version):
        """Set addon as installed."""
        self._data[addon] = {
            ATTR_VERSION: version,
            ATTR_OPTIONS: {}
        }
        self.save()

    def set_uninstall_addon(self, addon, version):
        """Set addon as uninstalled."""
        self._data.pop(addon, None)
        self.save()

    def get_options(self, addon):
        """Return options with local changes."""
        opt = self._addons_data[addon][ATTR_OPTIONS]
        if addon in self._data:
            opt.update(self._data[addon][ATTR_OPTIONS])
        return opt

    def get_image(self, addon):
        """Return name of addon docker image."""
        return "{}/{}-addon-{}".format(
            DOCKER_REPO, self.config.hassio_arch,
            self._addons_data[addon][ATTR_SLUG])

    def get_version(self, addon):
        """Return version of addon."""
        return self._addons_data[addon][ATTR_VERSION]

    def get_slug(self, addon):
        """Return slug of addon."""
        return self._addons_data[addon][ATTR_SLUG]

    def get_ports(self, addon):
        """Return ports of addon."""
        return self._addons_data[addon].get(ATTR_PORTS)

    def need_config(self, addon):
        """Return True if config map is needed."""
        return self._addons_data[addon][ATTR_MAP_CONFIG]

    def need_ssl(self, addon):
        """Return True if ssl map is needed."""
        return self._addons_data[addon][ATTR_MAP_SSL]

    def need_data(self, addon):
        """Return True if data map is needed."""
        return self._addons_data[addon][ATTR_MAP_DATA]

    def path_data(self, addon):
        """Return addon data path inside supervisor."""
        return "{}/{}".format(
            self.config.path_addons_data, self._addons_data[addon][ATTR_SLUG])

    def path_data_docker(self, addon):
        """Return addon data path external for docker."""
        return "{}/{}".format(self.config.path_addons_data_docker,
                              self._addons_data[addon][ATTR_SLUG])

    def path_addon_options(self, addon):
        """Return path to addons options."""
        return "{}/options.json".format(self.path_data(addon))

    def write_addon_options(self, addon):
        """Return True if addon options is written to data."""
        return write_json_file(
            self.path_addon_options(addon), self.get_options(addon))