"""Config flow for OpenAI Conversation integration."""
from __future__ import annotations

from functools import partial
import logging
from typing import Any

import openai
from openai import error
import voluptuous as vol

from homeassistant import config_entries
from homeassistant.const import CONF_API_KEY
from homeassistant.core import HomeAssistant
from homeassistant.data_entry_flow import FlowResult

from .const import DOMAIN

_LOGGER = logging.getLogger(__name__)

STEP_USER_DATA_SCHEMA = vol.Schema(
    {
        vol.Required(CONF_API_KEY): str,
    }
)


async def validate_input(hass: HomeAssistant, data: dict[str, Any]) -> None:
    """Validate the user input allows us to connect.

    Data has the keys from STEP_USER_DATA_SCHEMA with values provided by the user.
    """
    openai.api_key = data[CONF_API_KEY]
    await hass.async_add_executor_job(partial(openai.Engine.list, request_timeout=10))


class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
    """Handle a config flow for OpenAI Conversation."""

    VERSION = 1

    async def async_step_user(
        self, user_input: dict[str, Any] | None = None
    ) -> FlowResult:
        """Handle the initial step."""
        if self._async_current_entries():
            return self.async_abort(reason="single_instance_allowed")

        if user_input is None:
            return self.async_show_form(
                step_id="user", data_schema=STEP_USER_DATA_SCHEMA
            )

        errors = {}

        try:
            await validate_input(self.hass, user_input)
        except error.APIConnectionError:
            errors["base"] = "cannot_connect"
        except error.AuthenticationError:
            errors["base"] = "invalid_auth"
        except Exception:  # pylint: disable=broad-except
            _LOGGER.exception("Unexpected exception")
            errors["base"] = "unknown"
        else:
            return self.async_create_entry(title="OpenAI Conversation", data=user_input)

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