import enum
from typing import Final

from delta_barth.types import DualDict, HttpContentHeaders

# ** error handling
DEFAULT_INTERNAL_ERR_CODE: Final[int] = 100
DEFAULT_API_ERR_CODE: Final[int] = 400


HTTP_BASE_CONTENT_HEADERS: Final[HttpContentHeaders] = {
    "Content-type": "application/json",
    "Accept": "application/json",
}


class KnownDelBarApiErrorCodes(enum.Enum):
    COMMON = frozenset((400, 401, 409, 500))


# ** API response parsing
# ** column mapping [API-Response --> Target-Features]
COL_MAP_SALES_PROGNOSIS: Final[DualDict[str, str]] = DualDict(
    artikelId="artikel_refid",
    firmaId="firma_refid",
    betrag="betrag",
    menge="menge",
    buchungsDatum="buchungs_datum",
)

FEATURES_SALES_PROGNOSIS: Final[frozenset[str]] = frozenset(
    (
        "firma_refid",
        "betrag",
        "buchungs_datum",
    )
)

MIN_NUMBER_DATAPOINTS: Final[int] = 100