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package mage.cards.v;

import java.util.UUID;
import mage.MageInt;
import mage.abilities.Ability;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.condition.InvertCondition;
import mage.abilities.condition.common.SourceTappedCondition;
import mage.abilities.decorator.ConditionalContinuousEffect;
import mage.abilities.effects.ReplacementEffectImpl;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.CardType;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.filter.common.FilterCreaturePermanent;
import mage.filter.predicate.permanent.UnblockedPredicate;
import mage.game.Game;
import mage.game.events.DamageEvent;
import mage.game.events.DamagePlayerEvent;
import mage.game.events.GameEvent;
import mage.game.permanent.Permanent;

/**
 *
 * @author MTGfan
 */
public class VeteranBodyguard extends CardImpl {

    public VeteranBodyguard(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{W}{W}");

        this.subtype.add("Human");
        this.power = new MageInt(2);
        this.toughness = new MageInt(5);

        // As long as Veteran Bodyguard is untapped, all damage that would be dealt to you by unblocked creatures is dealt to Veteran Bodyguard instead.
        this.addAbility(new SimpleStaticAbility(Zone.BATTLEFIELD, new ConditionalContinuousEffect(new VeteranBodyguardEffect(), new InvertCondition(SourceTappedCondition.instance), "As long as {this} is untapped, all damage that would be dealt to you by unblocked creatures is dealt to {this} instead.")));
    }

    public VeteranBodyguard(final VeteranBodyguard card) {
        super(card);
    }

    @Override
    public VeteranBodyguard copy() {
        return new VeteranBodyguard(this);
    }
}

class VeteranBodyguardEffect extends ReplacementEffectImpl {

    private static final FilterCreaturePermanent filter = new FilterCreaturePermanent("unblocked creatures");

    static {
        filter.add(new UnblockedPredicate());
    }

    VeteranBodyguardEffect() {
        super(Duration.WhileOnBattlefield, Outcome.RedirectDamage);
        staticText = "all combat damage that would be dealt to you by unblocked creatures is dealt to {source} instead";
    }

    VeteranBodyguardEffect(final VeteranBodyguardEffect effect) {
        super(effect);
    }

    @Override
    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
        DamagePlayerEvent damageEvent = (DamagePlayerEvent) event;
        Permanent permanent = game.getPermanent(source.getSourceId());
        if (permanent != null) {
            permanent.damage(damageEvent.getAmount(), event.getSourceId(), game, damageEvent.isCombatDamage(), damageEvent.isPreventable());
            return true;
        }
        return true;
    }

    @Override
    public boolean checksEventType(GameEvent event, Game game) {
        return event.getType() == GameEvent.EventType.DAMAGE_PLAYER;
    }

    @Override
    public boolean applies(GameEvent event, Ability source, Game game) {
        if (event.getPlayerId().equals(source.getControllerId())
                && ((DamageEvent) event).isCombatDamage()) {
            Permanent p = game.getPermanent(source.getSourceId());
            if (p != null) {
                for (Permanent permanent : game.getBattlefield().getActivePermanents(filter, source.getControllerId(), source.getSourceId(), game)) {
                    if (event.getSourceId().equals(permanent.getId())) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    @Override
    public VeteranBodyguardEffect copy() {
        return new VeteranBodyguardEffect(this);
    }
}