package mage.abilities.common;

import mage.constants.Zone;
import mage.abilities.TriggeredAbilityImpl;
import mage.abilities.effects.Effect;
import mage.filter.common.FilterCreaturePermanent;
import mage.game.Game;
import mage.game.events.DamagedCreatureEvent;
import mage.game.events.GameEvent;
import mage.game.permanent.Permanent;
import mage.target.targetpointer.FixedTarget;

/**
 *
 * @author LevelX
 */
public class DealsDamageToACreatureTriggeredAbility extends TriggeredAbilityImpl {

    private boolean combatOnly;
    private final boolean setTargetPointer;
    private FilterCreaturePermanent filter;

    public DealsDamageToACreatureTriggeredAbility(Effect effect, boolean combatOnly, boolean optional, boolean setTargetPointer) {
        this(effect, combatOnly, optional, setTargetPointer, null);
    }

    public DealsDamageToACreatureTriggeredAbility(Effect effect, boolean combatOnly, boolean optional, boolean setTargetPointer, FilterCreaturePermanent filter) {
        super(Zone.BATTLEFIELD, effect, optional);
        this.combatOnly = combatOnly;
        this.filter = filter;
        this.setTargetPointer = setTargetPointer;
    }

    public DealsDamageToACreatureTriggeredAbility(final DealsDamageToACreatureTriggeredAbility ability) {
        super(ability);
        this.setTargetPointer = ability.setTargetPointer;
        this.combatOnly = ability.combatOnly;
        this.filter = ability.filter;
    }

    @Override
    public DealsDamageToACreatureTriggeredAbility copy() {
        return new DealsDamageToACreatureTriggeredAbility(this);
    }
    
    @Override
    public boolean checkEventType(GameEvent event, Game game) {
        return event.getType() == GameEvent.EventType.DAMAGED_CREATURE;
    }

    @Override
    public boolean checkTrigger(GameEvent event, Game game) {
        if (event.getSourceId().equals(this.sourceId)
                && (!combatOnly || ((DamagedCreatureEvent) event).isCombatDamage())) {
            if (filter != null) {
                Permanent creature = game.getPermanentOrLKIBattlefield(event.getTargetId());
                if (creature == null || !filter.match(creature, getSourceId(), getControllerId(), game)) {
                    return false;
                }
            }
            if (setTargetPointer) {
                for (Effect effect : this.getEffects()) {
                    effect.setTargetPointer(new FixedTarget(event.getTargetId()));
                    effect.setValue("damage", event.getAmount());
                }
            }
            return true;
        }
        return false;
    }

    @Override
    public String getRule() {
        StringBuilder sb = new StringBuilder("Whenever {this} deals ");
        if (combatOnly) {
            sb.append("combat ");
        }
        sb.append("damage to ");
        if (filter == null) {
            sb.append("a creature, ");
        } else {
            sb.append(filter.getMessage());
        }
        sb.append(super.getRule());
        return sb.toString();
    }

}