from pydantic import BaseModel


class PricingExplainMatchedRule(BaseModel):
    matched_rule_level: str
    matched_target_ref: str
    pricing_category_id: str
    amount: str
    currency: str


class PricingExplainResponse(BaseModel):
    scheme_id: str
    scheme_version_id: str
    seat_id: str | None
    element_id: str | None
    sector_id: str | None
    group_id: str | None
    row_label: str | None
    seat_number: str | None
    has_price: bool
    reason_code: str
    reason_message: str
    matched_rule: PricingExplainMatchedRule | None


class UnpricedSeatItem(BaseModel):
    seat_record_id: str
    seat_id: str | None
    element_id: str | None
    sector_id: str | None
    group_id: str | None
    row_label: str | None
    seat_number: str | None
    reason_code: str
    reason_message: str


class UnpricedSeatsResponse(BaseModel):
    scheme_id: str
    scheme_version_id: str
    total: int
    items: list[UnpricedSeatItem]


class PricingCoverageSummaryResponse(BaseModel):
    scheme_id: str
    scheme_version_id: str
    total_seats: int
    priced_seats: int
    unpriced_seats: int
    coverage_percent: float