"""Config flow for Google Tasks."""

import logging
from typing import Any

from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from googleapiclient.http import HttpRequest

from homeassistant.config_entries import ConfigFlowResult
from homeassistant.const import CONF_ACCESS_TOKEN, CONF_TOKEN
from homeassistant.helpers import config_entry_oauth2_flow

from .const import DOMAIN, OAUTH2_SCOPES


class OAuth2FlowHandler(
    config_entry_oauth2_flow.AbstractOAuth2FlowHandler, domain=DOMAIN
):
    """Config flow to handle Google Tasks OAuth2 authentication."""

    DOMAIN = DOMAIN

    @property
    def logger(self) -> logging.Logger:
        """Return logger."""
        return logging.getLogger(__name__)

    @property
    def extra_authorize_data(self) -> dict[str, Any]:
        """Extra data that needs to be appended to the authorize url."""
        return {
            "scope": " ".join(OAUTH2_SCOPES),
            # Add params to ensure we get back a refresh token
            "access_type": "offline",
            "prompt": "consent",
        }

    async def async_oauth_create_entry(self, data: dict[str, Any]) -> ConfigFlowResult:
        """Create an entry for the flow."""
        try:
            resource = build(
                "tasks",
                "v1",
                credentials=Credentials(token=data[CONF_TOKEN][CONF_ACCESS_TOKEN]),
            )
            cmd: HttpRequest = resource.tasklists().list()
            await self.hass.async_add_executor_job(cmd.execute)
        except HttpError as ex:
            error = ex.reason
            return self.async_abort(
                reason="access_not_configured",
                description_placeholders={"message": error},
            )
        except Exception:  # pylint: disable=broad-except
            self.logger.exception("Unknown error occurred")
            return self.async_abort(reason="unknown")
        return self.async_create_entry(title=self.flow_impl.name, data=data)