131 lines
3.9 KiB
Python
131 lines
3.9 KiB
Python
"""Config flow for UPB PIM integration."""
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import asyncio
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from contextlib import suppress
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import logging
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from typing import Any
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from urllib.parse import urlparse
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import upb_lib
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import voluptuous as vol
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from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
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from homeassistant.const import CONF_ADDRESS, CONF_FILE_PATH, CONF_HOST, CONF_PROTOCOL
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from homeassistant.exceptions import HomeAssistantError
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from .const import DOMAIN
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_LOGGER = logging.getLogger(__name__)
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PROTOCOL_MAP = {"TCP": "tcp://", "Serial port": "serial://"}
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DATA_SCHEMA = vol.Schema(
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{
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vol.Required(CONF_PROTOCOL, default="Serial port"): vol.In(
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["TCP", "Serial port"]
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),
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vol.Required(CONF_ADDRESS): str,
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vol.Required(CONF_FILE_PATH, default=""): str,
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}
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)
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VALIDATE_TIMEOUT = 15
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async def _validate_input(data):
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"""Validate the user input allows us to connect."""
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def _connected_callback():
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connected_event.set()
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connected_event = asyncio.Event()
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file_path = data.get(CONF_FILE_PATH)
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url = _make_url_from_data(data)
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upb = upb_lib.UpbPim({"url": url, "UPStartExportFile": file_path})
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await upb.async_connect(_connected_callback)
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if not upb.config_ok:
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_LOGGER.error("Missing or invalid UPB file: %s", file_path)
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raise InvalidUpbFile
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with suppress(TimeoutError):
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async with asyncio.timeout(VALIDATE_TIMEOUT):
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await connected_event.wait()
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upb.disconnect()
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if not connected_event.is_set():
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_LOGGER.error(
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"Timed out after %d seconds trying to connect with UPB PIM at %s",
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VALIDATE_TIMEOUT,
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url,
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)
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raise CannotConnect
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# Return info that you want to store in the config entry.
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return (upb.network_id, {"title": "UPB", CONF_HOST: url, CONF_FILE_PATH: file_path})
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def _make_url_from_data(data):
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if host := data.get(CONF_HOST):
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return host
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protocol = PROTOCOL_MAP[data[CONF_PROTOCOL]]
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address = data[CONF_ADDRESS]
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return f"{protocol}{address}"
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class UPBConfigFlow(ConfigFlow, domain=DOMAIN):
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"""Handle a config flow for UPB PIM."""
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VERSION = 1
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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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) -> ConfigFlowResult:
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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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try:
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if self._url_already_configured(_make_url_from_data(user_input)):
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return self.async_abort(reason="already_configured")
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network_id, info = await _validate_input(user_input)
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except CannotConnect:
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errors["base"] = "cannot_connect"
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except InvalidUpbFile:
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errors["base"] = "invalid_upb_file"
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except Exception:
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_LOGGER.exception("Unexpected exception")
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errors["base"] = "unknown"
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if "base" not in errors:
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await self.async_set_unique_id(network_id)
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self._abort_if_unique_id_configured()
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return self.async_create_entry(
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title=info["title"],
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data={
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CONF_HOST: info[CONF_HOST],
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CONF_FILE_PATH: user_input[CONF_FILE_PATH],
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},
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)
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return self.async_show_form(
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step_id="user", data_schema=DATA_SCHEMA, errors=errors
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)
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def _url_already_configured(self, url):
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"""See if we already have a UPB PIM matching user input configured."""
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existing_hosts = {
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urlparse(entry.data[CONF_HOST]).hostname
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for entry in self._async_current_entries()
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}
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return urlparse(url).hostname in existing_hosts
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class CannotConnect(HomeAssistantError):
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"""Error to indicate we cannot connect."""
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class InvalidUpbFile(HomeAssistantError):
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"""Error to indicate there is invalid or missing UPB config file."""
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