94 lines
3.0 KiB
Python
94 lines
3.0 KiB
Python
"""Config flow for the Velbus platform."""
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import velbus
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import voluptuous as vol
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from homeassistant import config_entries
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from homeassistant.const import CONF_PORT, CONF_NAME
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.util import slugify
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from .const import DOMAIN
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@callback
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def velbus_entries(hass: HomeAssistant):
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"""Return connections for Velbus domain."""
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return set((entry.data[CONF_PORT]) for
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entry in hass.config_entries.async_entries(DOMAIN))
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@config_entries.HANDLERS.register(DOMAIN)
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class VelbusConfigFlow(config_entries.ConfigFlow):
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"""Handle a config flow."""
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VERSION = 1
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CONNECTION_CLASS = config_entries.CONN_CLASS_LOCAL_PUSH
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def __init__(self) -> None:
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"""Initialize the velbus config flow."""
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self._errors = {}
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def _create_device(self, name: str, prt: str):
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"""Create an antry async."""
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return self.async_create_entry(
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title=name,
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data={
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CONF_PORT: prt
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}
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)
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def _test_connection(self, prt):
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"""Try to connect to the velbus with the port specified."""
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try:
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controller = velbus.Controller(prt)
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except Exception: # pylint: disable=broad-except
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self._errors[CONF_PORT] = 'connection_failed'
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return False
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controller.stop()
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return True
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def _prt_in_configuration_exists(self, prt: str) -> bool:
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"""Return True if port exists in configuration."""
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if prt in velbus_entries(self.hass):
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return True
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return False
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async def async_step_user(self, user_input=None):
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"""Step when user intializes a integration."""
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self._errors = {}
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if user_input is not None:
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name = slugify(user_input[CONF_NAME])
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prt = user_input[CONF_PORT]
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if not self._prt_in_configuration_exists(prt):
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if self._test_connection(prt):
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return self._create_device(name, prt)
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else:
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self._errors[CONF_PORT] = 'port_exists'
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else:
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user_input = {}
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user_input[CONF_NAME] = ''
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user_input[CONF_PORT] = ''
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return self.async_show_form(
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step_id='user',
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data_schema=vol.Schema({
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vol.Required(CONF_NAME,
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default=user_input[CONF_NAME]): str,
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vol.Required(CONF_PORT,
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default=user_input[CONF_PORT]): str
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}),
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errors=self._errors
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)
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async def async_step_import(self, user_input=None):
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"""Import a config entry."""
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user_input[CONF_NAME] = 'Velbus Import'
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prt = user_input[CONF_PORT]
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if self._prt_in_configuration_exists(prt):
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# if the velbus import is already in the config
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# we should not proceed the import
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return self.async_abort(
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reason='port_exists'
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)
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return await self.async_step_user(user_input)
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