from pydantic import BaseModel, Field
import logging

logger = logging.getLogger("pipeline.handoff")

# below this, the watchdog treats a "plausible" verdict as implausible anyway -
# started at 0.5, got burned by a bunch of low-confidence-but-correct handoffs
# in staging, moved it down until the false-halt rate stopped annoying people
CONFIDENCE_FLOOR = 0.35


class AccountHistoryPayload(BaseModel):
    account_id: str
    subscription_status: str
    billing_records: list[dict] = Field(default_factory=list)
    lookup_source: str  # which upstream system actually answered - saved us more than once when this was the only clue


class HandoffVerdict(BaseModel):
    is_plausible: bool
    reason: str
    confidence: float