"""Adds config flow for HACS."""
# pylint: disable=dangerous-default-value
import logging
import voluptuous as vol
from aiogithubapi import AIOGitHub, AIOGitHubException, AIOGitHubAuthentication
from homeassistant import config_entries
from homeassistant.core import callback
from homeassistant.helpers import aiohttp_client

from .const import DOMAIN
from .configuration_schema import hacs_base_config_schema, hacs_config_option_schema


_LOGGER = logging.getLogger(__name__)


class HacsFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
    """Config flow for HACS."""

    VERSION = 1
    CONNECTION_CLASS = config_entries.CONN_CLASS_CLOUD_POLL

    def __init__(self):
        """Initialize."""
        self._errors = {}

    async def async_step_user(self, user_input={}):
        """Handle a flow initialized by the user."""
        self._errors = {}
        if self._async_current_entries():
            return self.async_abort(reason="single_instance_allowed")
        if self.hass.data.get(DOMAIN):
            return self.async_abort(reason="single_instance_allowed")

        if user_input is not None:
            if await self._test_token(user_input["token"]):
                return self.async_create_entry(title="", data=user_input)

            self._errors["base"] = "auth"
            return await self._show_config_form(user_input)

        return await self._show_config_form(user_input)

    async def _show_config_form(self, user_input):
        """Show the configuration form to edit location data."""
        return self.async_show_form(
            step_id="user",
            data_schema=vol.Schema(hacs_base_config_schema(user_input)),
            errors=self._errors,
        )

    @staticmethod
    @callback
    def async_get_options_flow(config_entry):
        return HacsOptionsFlowHandler(config_entry)

    async def async_step_import(self, user_input):
        """Import a config entry.
        Special type of import, we're not actually going to store any data.
        Instead, we're going to rely on the values that are in config file.
        """
        if self._async_current_entries():
            return self.async_abort(reason="single_instance_allowed")

        return self.async_create_entry(title="configuration.yaml", data={})

    async def _test_token(self, token):
        """Return true if token is valid."""
        try:
            session = aiohttp_client.async_get_clientsession(self.hass)
            client = AIOGitHub(token, session)
            await client.get_repo("hacs/org")
            return True
        except (AIOGitHubException, AIOGitHubAuthentication) as exception:
            _LOGGER.error(exception)
        return False


class HacsOptionsFlowHandler(config_entries.OptionsFlow):
    """HACS config flow options handler."""

    def __init__(self, config_entry):
        """Initialize HACS options flow."""
        self.config_entry = config_entry

    async def async_step_init(self, user_input=None):
        """Manage the options."""
        return await self.async_step_user()

    async def async_step_user(self, user_input=None):
        """Handle a flow initialized by the user."""
        if user_input is not None:
            return self.async_create_entry(title="", data=user_input)

        return self.async_show_form(
            step_id="user",
            data_schema=vol.Schema(
                hacs_config_option_schema(self.config_entry.options)
            ),
        )