config_flow.py

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"""Config flow for Cambridge Audio."""
 
import asyncio
from typing import Any
 
from aiostreammagic import StreamMagicClient
import voluptuous as vol
 
from homeassistant.components import zeroconf
from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
from homeassistant.const import CONF_HOST, CONF_NAME
from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
from .const import CONNECT_TIMEOUT, DOMAIN, STREAM_MAGIC_EXCEPTIONS
 
 
class CambridgeAudioConfigFlow(ConfigFlow, domain=DOMAIN):
    """Cambridge Audio configuration flow."""
 
    VERSION = 1
 
    def __init__(self) -> None:
        """Initialize the config flow."""
        self.data: dict[str, Any] = {}
 
    async def async_step_zeroconf(
        self, discovery_info: zeroconf.ZeroconfServiceInfo
    ) -> ConfigFlowResult:
        """Handle zeroconf discovery."""
        self.data[CONF_HOST] = host = discovery_info.host
 
        await self.async_set_unique_idasync_set_unique_id(discovery_info.properties["serial"])
        self._abort_if_unique_id_configured_abort_if_unique_id_configured(updates={CONF_HOST: host})
        client = StreamMagicClient(host, async_get_clientsession(self.hass))
        try:
            async with asyncio.timeout(CONNECT_TIMEOUT):
                await client.connect()
        except STREAM_MAGIC_EXCEPTIONS:
            return self.async_abortasync_abortasync_abort(reason="cannot_connect")
 
        self.data[CONF_NAME] = client.info.name
 
        self.context["title_placeholders"] = {
            "name": self.data[CONF_NAME],
        }
        await client.disconnect()
        return await self.async_step_discovery_confirmasync_step_discovery_confirm()
 
    async def async_step_discovery_confirm(
        self, user_input: dict[str, Any] | None = None
    ) -> ConfigFlowResult:
        """Confirm discovery."""
        if user_input is not None:
            return self.async_create_entryasync_create_entryasync_create_entry(
                title=self.data[CONF_NAME],
                data={CONF_HOST: self.data[CONF_HOST]},
            )
 
        self._set_confirm_only_set_confirm_only()
        return self.async_show_formasync_show_formasync_show_form(
            step_id="discovery_confirm",
            description_placeholders={
                "name": self.data[CONF_NAME],
            },
        )
 
    async def async_step_user(
        self, user_input: dict[str, Any] | None = None
    ) -> ConfigFlowResult:
        """Handle a flow initialized by the user."""
        errors: dict[str, str] = {}
        if user_input:
            client = StreamMagicClient(
                user_input[CONF_HOST], async_get_clientsession(self.hass)
            )
            try:
                async with asyncio.timeout(CONNECT_TIMEOUT):
                    await client.connect()
            except STREAM_MAGIC_EXCEPTIONS:
                errors["base"] = "cannot_connect"
            else:
                await self.async_set_unique_idasync_set_unique_id(
                    client.info.unit_id, raise_on_progress=False
                )
                self._abort_if_unique_id_configured_abort_if_unique_id_configured()
                return self.async_create_entryasync_create_entryasync_create_entry(
                    title=client.info.name,
                    data={CONF_HOST: user_input[CONF_HOST]},
                )
            finally:
                await client.disconnect()
        return self.async_show_formasync_show_formasync_show_form(
            step_id="user",
            data_schema=vol.Schema({vol.Required(CONF_HOST): str}),
            errors=errors,
        )