core/homeassistant/components/wwlln/config_flow.py

84 lines
3.0 KiB
Python

"""Config flow to configure the WWLLN integration."""
import voluptuous as vol
from homeassistant import config_entries
from homeassistant.helpers import config_validation as cv
from homeassistant.const import (
CONF_LATITUDE,
CONF_LONGITUDE,
CONF_RADIUS,
CONF_UNIT_SYSTEM,
CONF_UNIT_SYSTEM_IMPERIAL,
CONF_UNIT_SYSTEM_METRIC,
)
from homeassistant.core import callback
from .const import CONF_WINDOW, DEFAULT_RADIUS, DEFAULT_WINDOW, DOMAIN
@callback
def configured_instances(hass):
"""Return a set of configured WWLLN instances."""
return set(
"{0}, {1}".format(entry.data[CONF_LATITUDE], entry.data[CONF_LONGITUDE])
for entry in hass.config_entries.async_entries(DOMAIN)
)
@config_entries.HANDLERS.register(DOMAIN)
class WWLLNFlowHandler(config_entries.ConfigFlow):
"""Handle a WWLLN config flow."""
VERSION = 2
CONNECTION_CLASS = config_entries.CONN_CLASS_CLOUD_POLL
async def _show_form(self, errors=None):
"""Show the form to the user."""
data_schema = vol.Schema(
{
vol.Optional(
CONF_LATITUDE, default=self.hass.config.latitude
): cv.latitude,
vol.Optional(
CONF_LONGITUDE, default=self.hass.config.longitude
): cv.longitude,
vol.Optional(CONF_RADIUS, default=DEFAULT_RADIUS): cv.positive_int,
}
)
return self.async_show_form(
step_id="user", data_schema=data_schema, errors=errors or {}
)
async def async_step_import(self, import_config):
"""Import a config entry from configuration.yaml."""
return await self.async_step_user(import_config)
async def async_step_user(self, user_input=None):
"""Handle the start of the config flow."""
if not user_input:
return await self._show_form()
identifier = "{0}, {1}".format(
user_input[CONF_LATITUDE], user_input[CONF_LONGITUDE]
)
if identifier in configured_instances(self.hass):
return await self._show_form({"base": "identifier_exists"})
if self.hass.config.units.name == CONF_UNIT_SYSTEM_IMPERIAL:
user_input[CONF_UNIT_SYSTEM] = CONF_UNIT_SYSTEM_IMPERIAL
else:
user_input[CONF_UNIT_SYSTEM] = CONF_UNIT_SYSTEM_METRIC
# When importing from `configuration.yaml`, we give the user
# flexibility by allowing the `window` parameter to be any type
# of time period. This will always return a timedelta; unfortunately,
# timedeltas aren't JSON-serializable, so we can't store them in a
# config entry as-is; instead, we save the total seconds as an int:
if CONF_WINDOW in user_input:
user_input[CONF_WINDOW] = user_input[CONF_WINDOW].total_seconds()
else:
user_input[CONF_WINDOW] = DEFAULT_WINDOW.total_seconds()
return self.async_create_entry(title=identifier, data=user_input)