210 lines
7.7 KiB
Python
210 lines
7.7 KiB
Python
"""Config flow for Tesla Powerwall integration."""
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from __future__ import annotations
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import logging
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from typing import Any
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from tesla_powerwall import (
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AccessDeniedError,
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MissingAttributeError,
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Powerwall,
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PowerwallUnreachableError,
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)
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import voluptuous as vol
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from homeassistant import config_entries, core, exceptions
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from homeassistant.components import dhcp
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from homeassistant.const import CONF_IP_ADDRESS, CONF_PASSWORD
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from homeassistant.data_entry_flow import FlowResult
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from homeassistant.util.network import is_ip_address
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from .const import DOMAIN
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_LOGGER = logging.getLogger(__name__)
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def _login_and_fetch_site_info(power_wall: Powerwall, password: str):
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"""Login to the powerwall and fetch the base info."""
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if password is not None:
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power_wall.login(password)
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power_wall.detect_and_pin_version()
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return power_wall.get_site_info(), power_wall.get_gateway_din()
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async def validate_input(
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hass: core.HomeAssistant, data: dict[str, str]
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) -> dict[str, str]:
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"""Validate the user input allows us to connect.
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Data has the keys from schema with values provided by the user.
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"""
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power_wall = Powerwall(data[CONF_IP_ADDRESS])
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password = data[CONF_PASSWORD]
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try:
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site_info, gateway_din = await hass.async_add_executor_job(
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_login_and_fetch_site_info, power_wall, password
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)
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except MissingAttributeError as err:
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# Only log the exception without the traceback
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_LOGGER.error(str(err))
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raise WrongVersion from err
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# Return info that you want to store in the config entry.
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return {"title": site_info.site_name, "unique_id": gateway_din.upper()}
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class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
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"""Handle a config flow for Tesla Powerwall."""
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VERSION = 1
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def __init__(self):
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"""Initialize the powerwall flow."""
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self.ip_address: str | None = None
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self.title: str | None = None
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self.reauth_entry: config_entries.ConfigEntry | None = None
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async def async_step_dhcp(self, discovery_info: dhcp.DhcpServiceInfo) -> FlowResult:
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"""Handle dhcp discovery."""
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self.ip_address = discovery_info.ip
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gateway_din = discovery_info.hostname.upper()
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# The hostname is the gateway_din (unique_id)
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await self.async_set_unique_id(gateway_din)
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self._abort_if_unique_id_configured(updates={CONF_IP_ADDRESS: self.ip_address})
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for entry in self._async_current_entries(include_ignore=False):
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if entry.data[CONF_IP_ADDRESS] == discovery_info.ip:
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if entry.unique_id is not None and is_ip_address(entry.unique_id):
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if self.hass.config_entries.async_update_entry(
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entry, unique_id=gateway_din
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):
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self.hass.async_create_task(
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self.hass.config_entries.async_reload(entry.entry_id)
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)
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return self.async_abort(reason="already_configured")
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self.context["title_placeholders"] = {
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"name": gateway_din,
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"ip_address": self.ip_address,
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}
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errors, info = await self._async_try_connect(
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{CONF_IP_ADDRESS: self.ip_address, CONF_PASSWORD: gateway_din[-5:]}
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)
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if errors:
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if CONF_PASSWORD in errors:
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# The default password is the gateway din last 5
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# if it does not work, we have to ask
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return await self.async_step_user()
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return self.async_abort(reason="cannot_connect")
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assert info is not None
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self.title = info["title"]
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return await self.async_step_confirm_discovery()
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async def _async_try_connect(
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self, user_input
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) -> tuple[dict[str, Any] | None, dict[str, str] | None]:
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"""Try to connect to the powerwall."""
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info = None
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errors: dict[str, str] = {}
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try:
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info = await validate_input(self.hass, user_input)
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except PowerwallUnreachableError:
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errors[CONF_IP_ADDRESS] = "cannot_connect"
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except WrongVersion:
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errors["base"] = "wrong_version"
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except AccessDeniedError:
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errors[CONF_PASSWORD] = "invalid_auth"
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except Exception: # pylint: disable=broad-except
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_LOGGER.exception("Unexpected exception")
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errors["base"] = "unknown"
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return errors, info
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async def async_step_confirm_discovery(self, user_input=None) -> FlowResult:
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"""Confirm a discovered powerwall."""
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assert self.ip_address is not None
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assert self.unique_id is not None
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if user_input is not None:
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assert self.title is not None
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return self.async_create_entry(
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title=self.title,
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data={
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CONF_IP_ADDRESS: self.ip_address,
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CONF_PASSWORD: self.unique_id[-5:],
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},
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)
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self._set_confirm_only()
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self.context["title_placeholders"] = {
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"name": self.title,
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"ip_address": self.ip_address,
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}
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return self.async_show_form(
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step_id="confirm_discovery",
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data_schema=vol.Schema({}),
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description_placeholders={
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"name": self.title,
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"ip_address": self.ip_address,
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},
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)
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async def async_step_user(self, user_input=None):
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"""Handle the initial step."""
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errors = {}
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if user_input is not None:
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errors, info = await self._async_try_connect(user_input)
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if not errors:
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assert info is not None
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if info["unique_id"]:
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await self.async_set_unique_id(
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info["unique_id"], raise_on_progress=False
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)
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self._abort_if_unique_id_configured(
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updates={CONF_IP_ADDRESS: user_input[CONF_IP_ADDRESS]}
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)
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self._async_abort_entries_match({CONF_IP_ADDRESS: self.ip_address})
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return self.async_create_entry(title=info["title"], data=user_input)
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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_IP_ADDRESS, default=self.ip_address): str,
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vol.Optional(CONF_PASSWORD): str,
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}
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),
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errors=errors,
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)
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async def async_step_reauth_confirm(self, user_input=None):
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"""Handle reauth confirmation."""
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errors = {}
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if user_input is not None:
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entry_data = self.reauth_entry.data
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errors, _ = await self._async_try_connect(
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{CONF_IP_ADDRESS: entry_data[CONF_IP_ADDRESS], **user_input}
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)
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if not errors:
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self.hass.config_entries.async_update_entry(
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self.reauth_entry, data={**entry_data, **user_input}
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)
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await self.hass.config_entries.async_reload(self.reauth_entry.entry_id)
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return self.async_abort(reason="reauth_successful")
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return self.async_show_form(
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step_id="reauth_confirm",
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data_schema=vol.Schema({vol.Optional(CONF_PASSWORD): str}),
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errors=errors,
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)
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async def async_step_reauth(self, data):
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"""Handle configuration by re-auth."""
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self.reauth_entry = self.hass.config_entries.async_get_entry(
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self.context["entry_id"]
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)
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return await self.async_step_reauth_confirm()
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class WrongVersion(exceptions.HomeAssistantError):
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"""Error to indicate the powerwall uses a software version we cannot interact with."""
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