from intelligine.core.exceptions import NearNothingFound
from synergine.core.exceptions import NotConcernedEvent
from intelligine.synergy.event.src.NearEvent import NearEvent
from synergine_xyz.mechanism.AroundMechanism import AroundMechanism
from intelligine.cst import ATTACKABLE, COLONY, COL_FIGHTER, BRAIN_PART_ATTACK


class NearAttackableEvent(NearEvent):

    _mechanism = AroundMechanism
    _concern = COL_FIGHTER
    _near_name = 'objects_ids_attackable'
    _near_map = lambda self, near_object_id, context: context.metas.states.have(near_object_id, ATTACKABLE)

    def _prepare(self, object_id, context, parameters={}):
        obj_colony_id = context.metas.value.get(COLONY, object_id)
        filter = lambda near_object_id, context: obj_colony_id != context.metas.value.get(COLONY, near_object_id)

        try:
            self.map(context, parameters, stop_at_first=True, filter=filter)
        except NearNothingFound:
            raise NotConcernedEvent()

        brain_part = self._get_brain_part(context, object_id, BRAIN_PART_ATTACK)
        if not brain_part.can_attack(context, object_id, parameters[self._near_name][0]):
            raise NotConcernedEvent()

        return parameters