"""Config flow for Fast.com integration."""

from __future__ import annotations

from typing import Any

from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN
from homeassistant.helpers.issue_registry import IssueSeverity, async_create_issue

from .const import DEFAULT_NAME, DOMAIN


class FastdotcomConfigFlow(ConfigFlow, domain=DOMAIN):
    """Handle a config flow for Fast.com."""

    VERSION = 1

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

        if user_input is not None:
            return self.async_create_entry(title=DEFAULT_NAME, data={})

        return self.async_show_form(step_id="user")

    async def async_step_import(
        self, user_input: dict[str, Any] | None = None
    ) -> ConfigFlowResult:
        """Handle a flow initiated by configuration file."""
        async_create_issue(
            self.hass,
            HOMEASSISTANT_DOMAIN,
            f"deprecated_yaml_{DOMAIN}",
            breaks_in_ha_version="2024.6.0",
            is_fixable=False,
            issue_domain=DOMAIN,
            severity=IssueSeverity.WARNING,
            translation_key="deprecated_yaml",
            translation_placeholders={
                "domain": DOMAIN,
                "integration_title": "Fast.com",
            },
        )

        return await self.async_step_user(user_input)