from __future__ import annotations

from dataclasses import dataclass

from game.commander.missionproposals import EscortType
from game.commander.tasks.packageplanningtask import PackagePlanningTask
from game.commander.theaterstate import TheaterState
from game.theater.theatergroundobject import NavalGroundObject
from game.ato.flighttype import FlightType


@dataclass
class PlanAntiShip(PackagePlanningTask[NavalGroundObject]):
    def preconditions_met(self, state: TheaterState) -> bool:
        if self.target not in state.threatening_air_defenses:
            return False
        if not self.target_area_preconditions_met(state, ignore_iads=True):
            return False
        return super().preconditions_met(state)

    def apply_effects(self, state: TheaterState) -> None:
        state.eliminate_ship(self.target)

    def propose_flights(self) -> None:
        self.propose_flight(FlightType.ANTISHIP, 2)
        self.propose_flight(FlightType.ESCORT, 2, EscortType.AirToAir)