core/homeassistant/components/emulated_roku/config_flow.py

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"""Config flow to configure emulated_roku component."""
import voluptuous as vol
from homeassistant import config_entries
from homeassistant.const import CONF_NAME
from homeassistant.core import callback
from .const import CONF_LISTEN_PORT, DEFAULT_NAME, DEFAULT_PORT, DOMAIN
@callback
def configured_servers(hass):
"""Return a set of the configured servers."""
return set(entry.data[CONF_NAME] for entry
in hass.config_entries.async_entries(DOMAIN))
@config_entries.HANDLERS.register(DOMAIN)
class EmulatedRokuFlowHandler(config_entries.ConfigFlow):
"""Handle an emulated_roku config flow."""
VERSION = 1
CONNECTION_CLASS = config_entries.CONN_CLASS_LOCAL_PUSH
async def async_step_user(self, user_input=None):
"""Handle a flow initialized by the user."""
errors = {}
if user_input is not None:
name = user_input[CONF_NAME]
if name in configured_servers(self.hass):
return self.async_abort(reason='name_exists')
return self.async_create_entry(
title=name,
data=user_input
)
servers_num = len(configured_servers(self.hass))
if servers_num:
default_name = "{} {}".format(DEFAULT_NAME, servers_num + 1)
default_port = DEFAULT_PORT + servers_num
else:
default_name = DEFAULT_NAME
default_port = DEFAULT_PORT
return self.async_show_form(
step_id='user',
data_schema=vol.Schema({
vol.Required(CONF_NAME,
default=default_name): str,
vol.Required(CONF_LISTEN_PORT,
default=default_port): vol.Coerce(int)
}),
errors=errors
)
async def async_step_import(self, import_config):
"""Handle a flow import."""
return await self.async_step_user(import_config)