"""Config flow for Blue Current integration."""
from __future__ import annotations

from typing import Any

from bluecurrent_api import Client
from bluecurrent_api.exceptions import (
    AlreadyConnected,
    InvalidApiToken,
    RequestLimitReached,
    WebsocketError,
)
import voluptuous as vol

from homeassistant import config_entries
from homeassistant.const import CONF_API_TOKEN
from homeassistant.data_entry_flow import FlowResult

from .const import DOMAIN, LOGGER

DATA_SCHEMA = vol.Schema({vol.Required(CONF_API_TOKEN): str})


class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
    """Handle the config flow for Blue Current."""

    VERSION = 1

    async def async_step_user(
        self, user_input: dict[str, Any] | None = None
    ) -> FlowResult:
        """Handle the initial step."""
        errors = {}
        if user_input is not None:
            client = Client()
            api_token = user_input[CONF_API_TOKEN]

            try:
                customer_id = await client.validate_api_token(api_token)
                email = await client.get_email()
            except WebsocketError:
                errors["base"] = "cannot_connect"
            except RequestLimitReached:
                errors["base"] = "limit_reached"
            except AlreadyConnected:
                errors["base"] = "already_connected"
            except InvalidApiToken:
                errors["base"] = "invalid_token"
            except Exception:  # pylint: disable=broad-except
                LOGGER.exception("Unexpected exception")
                errors["base"] = "unknown"

            else:
                await self.async_set_unique_id(customer_id)
                self._abort_if_unique_id_configured()

                return self.async_create_entry(title=email, data=user_input)

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