text: """Config flow for Goal Zero Yeti integration."""
  from __future__ import annotations
  
  import logging
  from typing import Any
  
  from goalzero import Yeti, exceptions
  import voluptuous as vol
  
  from homeassistant import config_entries
  from homeassistant.components.dhcp import IP_ADDRESS, MAC_ADDRESS
  from homeassistant.const import CONF_HOST, CONF_NAME
  from homeassistant.data_entry_flow import FlowResult
  from homeassistant.helpers.aiohttp_client import async_get_clientsession
  from homeassistant.helpers.device_registry import format_mac
  
  from .const import DEFAULT_NAME, DOMAIN
  
  _LOGGER = logging.getLogger(__name__)
  
  DATA_SCHEMA = vol.Schema({"host": str, "name": str})
  
  
  class GoalZeroFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
      """Handle a config flow for Goal Zero Yeti."""
  
      VERSION = 1
  
      def __init__(self):
          """Initialize a Goal Zero Yeti flow."""
          self.ip_address = None
  
      async def async_step_dhcp(self, discovery_info):
          """Handle dhcp discovery."""
          self.ip_address = discovery_info[IP_ADDRESS]
  
          await self.async_set_unique_id(discovery_info[MAC_ADDRESS])
          self._abort_if_unique_id_configured(updates={CONF_HOST: self.ip_address})
          self._async_abort_entries_match({CONF_HOST: self.ip_address})
  
          _, error = await self._async_try_connect(self.ip_address)
          if error is None:
              return await self.async_step_confirm_discovery()
          return self.async_abort(reason=error)
  
      async def async_step_confirm_discovery(
          self, user_input: dict[str, Any] | None = None
      ) -> FlowResult:
          """Allow the user to confirm adding the device."""
          if user_input is not None:
              return self.async_create_entry(
                  title="Goal Zero",
                  data={
                      CONF_HOST: self.ip_address,
                      CONF_NAME: DEFAULT_NAME,
                  },
              )
  
          self._set_confirm_only()
          return self.async_show_form(
              step_id="confirm_discovery",
              description_placeholders={
                  CONF_HOST: self.ip_address,
                  CONF_NAME: DEFAULT_NAME,
              },
          )
  
      async def async_step_user(self, user_input=None):
          """Handle a flow initiated by the user."""
          errors = {}
          if user_input is not None:
              host = user_input[CONF_HOST]
              name = user_input[CONF_NAME]
  
              self._async_abort_entries_match({CONF_HOST: host})
  
              mac_address, error = await self._async_try_connect(host)
              if error is None:
                  await self.async_set_unique_id(format_mac(mac_address))
                  self._abort_if_unique_id_configured(updates={CONF_HOST: host})
                  return self.async_create_entry(
                      title=name,
                      data={CONF_HOST: host, CONF_NAME: name},
                  )
              errors["base"] = error
  
          user_input = user_input or {}
          return self.async_show_form(
              step_id="user",
              data_schema=vol.Schema(
                  {
                      vol.Required(
                          CONF_HOST, default=user_input.get(CONF_HOST) or ""
                      ): str,
                      vol.Optional(
                          CONF_NAME, default=user_input.get(CONF_NAME) or DEFAULT_NAME
                      ): str,
                  }
              ),
              errors=errors,
          )
  
      async def _async_try_connect(self, host):
          """Try connecting to Goal Zero Yeti."""
          try:
              session = async_get_clientsession(self.hass)
              api = Yeti(host, self.hass.loop, session)
              await api.sysinfo()
          except exceptions.ConnectError:
              _LOGGER.error("Error connecting to device at %s", host)
              return None, "cannot_connect"
          except exceptions.InvalidHost:
              _LOGGER.error("Invalid host at %s", host)
              return None, "invalid_host"
          except Exception:  # pylint: disable=broad-except
              _LOGGER.exception("Unexpected exception")
              return None, "unknown"
          return str(api.sysdata["macAddress"]), None
  