config_flow.py

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"""Config flow to configure the Arcam FMJ component."""
 
from __future__ import annotations
 
from typing import Any
from urllib.parse import urlparse
 
from arcam.fmj.client import Client, ConnectionFailed
from arcam.fmj.utils import get_uniqueid_from_host, get_uniqueid_from_udn
import voluptuous as vol
 
from homeassistant.components import ssdp
from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
from homeassistant.const import CONF_HOST, CONF_PORT
from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
from .const import DEFAULT_NAME, DEFAULT_PORT, DOMAIN
 
 
class ArcamFmjFlowHandler(ConfigFlow, domain=DOMAIN):
    """Handle config flow."""
 
    VERSION = 1
 
    host: str
    port: int
 
    async def _async_set_unique_id_and_update(
        self, host: str, port: int, uuid: str
    ) -> None:
        await self.async_set_unique_idasync_set_unique_id(uuid)
        self._abort_if_unique_id_configured_abort_if_unique_id_configured({CONF_HOST: host, CONF_PORT: port})
 
    async def _async_check_and_create(self, host: str, port: int) -> ConfigFlowResult:
        client = Client(host, port)
        try:
            await client.start()
        except ConnectionFailed:
            return self.async_abortasync_abortasync_abort(reason="cannot_connect")
        finally:
            await client.stop()
 
        return self.async_create_entryasync_create_entryasync_create_entry(
            title=f"{DEFAULT_NAME} ({host})",
            data={CONF_HOST: host, CONF_PORT: port},
        )
 
    async def async_step_user(
        self, user_input: dict[str, Any] | None = None
    ) -> ConfigFlowResult:
        """Handle a discovered device."""
        errors: dict[str, str] = {}
 
        if user_input is not None:
            uuid = await get_uniqueid_from_host(
                async_get_clientsession(self.hass), user_input[CONF_HOST]
            )
            if uuid:
                await self._async_set_unique_id_and_update_async_set_unique_id_and_update(
                    user_input[CONF_HOST], user_input[CONF_PORT], uuid
                )
 
            return await self._async_check_and_create_async_check_and_create(
                user_input[CONF_HOST], user_input[CONF_PORT]
            )
 
        fields = {
            vol.Required(CONF_HOST): str,
            vol.Required(CONF_PORT, default=DEFAULT_PORT): int,
        }
 
        return self.async_show_formasync_show_formasync_show_form(
            step_id="user", data_schema=vol.Schema(fields), errors=errors
        )
 
    async def async_step_confirm(
        self, user_input: dict[str, Any] | None = None
    ) -> ConfigFlowResult:
        """Handle user-confirmation of discovered node."""
        placeholders = {"host": self.hosthost}
        self.context["title_placeholders"] = placeholders
 
        if user_input is not None:
            return await self._async_check_and_create_async_check_and_create(self.hosthost, self.portport)
 
        return self.async_show_formasync_show_formasync_show_form(
            step_id="confirm", description_placeholders=placeholders
        )
 
    async def async_step_ssdp(
        self, discovery_info: ssdp.SsdpServiceInfo
    ) -> ConfigFlowResult:
        """Handle a discovered device."""
        host = str(urlparse(discovery_info.ssdp_location).hostname)
        port = DEFAULT_PORT
        uuid = get_uniqueid_from_udn(discovery_info.upnp[ssdp.ATTR_UPNP_UDN])
        if not uuid:
            return self.async_abortasync_abortasync_abort(reason="cannot_connect")
 
        await self._async_set_unique_id_and_update_async_set_unique_id_and_update(host, port, uuid)
 
        self.hosthost = host
        self.portport = DEFAULT_PORT
        return await self.async_step_confirmasync_step_confirm()