85 lines
2.7 KiB
Python
85 lines
2.7 KiB
Python
"""Config flow for the Velbus platform."""
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from __future__ import annotations
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from typing import Any
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import velbusaio
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from velbusaio.exceptions import VelbusConnectionFailed
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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_NAME, CONF_PORT
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.data_entry_flow import FlowResult
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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) -> set[str]:
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"""Return connections for Velbus domain."""
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return {
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entry.data[CONF_PORT] for entry in hass.config_entries.async_entries(DOMAIN)
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}
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class VelbusConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
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"""Handle a config flow."""
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VERSION = 1
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def __init__(self) -> None:
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"""Initialize the velbus config flow."""
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self._errors: dict[str, str] = {}
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def _create_device(self, name: str, prt: str) -> FlowResult:
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"""Create an entry async."""
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return self.async_create_entry(title=name, data={CONF_PORT: prt})
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async def _test_connection(self, prt: str) -> bool:
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"""Try to connect to the velbus with the port specified."""
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try:
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controller = velbusaio.controller.Velbus(prt)
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await controller.connect(True)
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await controller.stop()
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except VelbusConnectionFailed:
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self._errors[CONF_PORT] = "cannot_connect"
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return False
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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(
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self, user_input: dict[str, Any] | None = None
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) -> FlowResult:
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"""Step when user initializes 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 await 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] = "already_configured"
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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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{
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vol.Required(CONF_NAME, default=user_input[CONF_NAME]): str,
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vol.Required(CONF_PORT, default=user_input[CONF_PORT]): str,
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}
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),
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errors=self._errors,
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)
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