import dataclasses
import datetime
import logging
from collections.abc import Iterator, Mapping
from decimal import Decimal

import kucoin.client
from frozendict import frozendict

from personal_data.data import DeduplicateMode, Scraper

from .. import secrets

logger = logging.getLogger(__name__)


HOSTNAME = 'api.kucoin.com'
URL_ACCOUNTS = 'https://{hostname}/api/v1/accounts'

# TODO: Move these into secrets!
client = kucoin.client.Client(
    secrets.KUCOIN_KEY,
    secrets.KUCOIN_SECRET,
    secrets.KUCOIN_PASS,
)


@dataclasses.dataclass(frozen=True)
class KucoinAccountBalances(Scraper):
    dataset_name = 'defi_kucoin_balance'
    deduplicate_mode = DeduplicateMode.ONLY_LATEST
    deduplicate_ignore_columns = ['account.update_time']

    def scrape(self) -> Iterator[Mapping[str, object]]:
        data_point = {
            'account.update_time': datetime.datetime.now(tz=datetime.UTC),
        }

        for account in client.get_accounts():
            key = f"balance.{account['currency']}"
            data_point[key] = data_point.get(key, Decimal(0)) + Decimal(
                account['balance'],
            )

        yield frozendict(data_point)