"""Fixed simulated tool semantics. No callable here can contact a real service."""
from dataclasses import dataclass
from .models import Effect, Risk


@dataclass(frozen=True)
class ToolSpec:
    fields: tuple[tuple[str, str], ...]
    subject_field: str
    effect: Effect
    risk: Risk
    amount_field: str | None = None


TOOLS = {
    "book_flight": ToolSpec((("flight_id", "str"), ("flight_status", "str"),
                            ("flight_price", "number"), ("currency", "str")),
                           "flight_id", "irreversible", "high", "flight_price"),
    "submit_payment": ToolSpec((("merchant_id", "str"), ("payment_endpoint", "str"),
                               ("amount", "number"), ("currency", "str")),
                              "merchant_id", "irreversible", "high", "amount"),
    "schedule_event": ToolSpec((("meeting_id", "str"), ("meeting_time", "str")),
                              "meeting_id", "reversible", "low"),
    "search_flights": ToolSpec((("destination", "str"),), "destination", "read", "low"),
    "query_airline": ToolSpec((("query_id", "str"),), "query_id", "read", "low"),
    "query_merchant": ToolSpec((("query_id", "str"),), "query_id", "read", "low"),
    "query_calendar": ToolSpec((("query_id", "str"),), "query_id", "read", "low"),
}
EFFECT_RANK = {"read": 0, "reversible": 1, "irreversible": 2}
RISK_RANK = {"low": 0, "high": 1}


def is_type(value, kind):
    if kind == "str":
        return type(value) is str and bool(value)
    return type(value) in (int, float) and value >= 0