from __future__ import annotations

from dataclasses import dataclass

from game.commander.tasks.packageplanningtask import PackagePlanningTask
from game.commander.theaterstate import TheaterState
from game.data.doctrine import Doctrine
from game.theater import MissionTarget
from gen.flights.flight import FlightType


@dataclass
class PlanRefueling(PackagePlanningTask[MissionTarget]):
    def preconditions_met(self, state: TheaterState) -> bool:
        if not super().preconditions_met(state):
            return False
        return self.target in state.refueling_targets

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

    def propose_flights(self, doctrine: Doctrine) -> None:
        self.propose_flight(FlightType.REFUELING, 1, doctrine.mission_ranges.refueling)