"""Config flow for Midea ccm15 AC Controller integration."""
from __future__ import annotations

import logging
from typing import Any

from ccm15 import CCM15Device
import voluptuous as vol

from homeassistant import config_entries
from homeassistant.const import CONF_HOST, CONF_PORT
from homeassistant.data_entry_flow import FlowResult
import homeassistant.helpers.config_validation as cv

from .const import DEFAULT_TIMEOUT, DOMAIN

_LOGGER = logging.getLogger(__name__)

STEP_USER_DATA_SCHEMA = vol.Schema(
    {
        vol.Required(CONF_HOST): str,
        vol.Optional(CONF_PORT, default=80): cv.port,
    }
)


class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
    """Handle a config flow for Midea ccm15 AC Controller."""

    VERSION = 1

    async def async_step_user(
        self, user_input: dict[str, Any] | None = None
    ) -> FlowResult:
        """Handle the initial step."""
        errors: dict[str, str] = {}
        if user_input is not None:
            self._async_abort_entries_match(user_input)
            ccm15 = CCM15Device(
                user_input[CONF_HOST], user_input[CONF_PORT], DEFAULT_TIMEOUT
            )
            try:
                if not await ccm15.async_test_connection():
                    errors["base"] = "cannot_connect"
            except Exception:  # pylint: disable=broad-except
                _LOGGER.exception("Unexpected exception")
                errors["base"] = "unknown"

            if not errors:
                return self.async_create_entry(
                    title=user_input[CONF_HOST], data=user_input
                )

        return self.async_show_form(
            step_id="user", data_schema=STEP_USER_DATA_SCHEMA, errors=errors
        )