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package mage.abilities.keyword;
import java.util.UUID;
import mage.MageObjectReference;
import mage.abilities.Ability;
import mage.abilities.SpellAbility;
import mage.abilities.StaticAbility;
import mage.abilities.effects.AsThoughEffectImpl;
import mage.abilities.effects.common.cost.CostModificationEffectImpl;
import mage.cards.Card;
import mage.constants.AsThoughEffectType;
import mage.constants.CostModificationType;
import mage.constants.Duration;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.filter.common.FilterControlledCreaturePermanent;
import mage.filter.predicate.mageobject.SubtypePredicate;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.players.Player;
import mage.target.Target;
import mage.target.common.TargetControlledCreaturePermanent;
import mage.util.CardUtil;
/**
*
* 702.46. Offering # 702.46a Offering is a static ability of a card that
* functions in any zone from which the card can be cast. "[Subtype] offering"
* means "You may cast this card any time you could cast an instant by
* sacrificing a [subtype] permanent. If you do, the total cost to cast this
* card is reduced by the sacrificed permanent's mana cost." #
*
* 702.46b The permanent is sacrificed at the same time the spell is announced
* (see rule 601.2a). The total cost of the spell is reduced by the sacrificed
* permanent's mana cost (see rule 601.2e). #
*
* 702.46c Generic mana in the sacrificed permanent's mana cost reduces generic
* mana in the total cost to cast the card with offering. Colored mana in the
* sacrificed permanent's mana cost reduces mana of the same color in the total
* cost to cast the card with offering. Colored mana in the sacrificed
* permanent's mana cost that doesn't match colored mana in the colored mana
* cost of the card with offering, or is in excess of the card's colored mana
* cost, reduces that much generic mana in the total cost. #
*
*
* @author LevelX2
*/
public class OfferingAbility extends StaticAbility {
private FilterControlledCreaturePermanent filter = new FilterControlledCreaturePermanent();
/**
*
* @param subtype name of the subtype that can be offered
*/
public OfferingAbility(String subtype) {
super(Zone.ALL, null);
filter.add(new SubtypePredicate(subtype));
filter.setMessage(subtype);
this.addEffect(new OfferingAsThoughEffect());
}
public OfferingAbility(OfferingAbility ability) {
super(ability);
this.filter = ability.filter;
}
@Override
public OfferingAbility copy() {
return new OfferingAbility(this);
}
public FilterControlledCreaturePermanent getFilter() {
return filter;
}
@Override
public String getRule(boolean all) {
String subtype = filter.getMessage();
return subtype + " offering <i>(You may cast this card any time you could cast an instant by sacrificing a " + subtype + " and paying the difference in mana costs between this and the sacrificed " + subtype + ". Mana cost includes color.)</i>";
}
}
class OfferingAsThoughEffect extends AsThoughEffectImpl {
public OfferingAsThoughEffect() {
super(AsThoughEffectType.CAST_AS_INSTANT, Duration.EndOfGame, Outcome.Benefit);
}
public OfferingAsThoughEffect(final OfferingAsThoughEffect effect) {
super(effect);
}
@Override
public boolean apply(Game game, Ability source) {
return true;
}
@Override
public OfferingAsThoughEffect copy() {
return new OfferingAsThoughEffect(this);
}
@Override
public boolean applies(UUID sourceId, Ability source, UUID affectedControllerId, Game game) {
return false;
}
@Override
public boolean applies(UUID sourceId, Ability affectedAbility, Ability source, Game game) {
if (sourceId.equals(source.getSourceId())) {
Card card = game.getCard(sourceId);
if (!card.getOwnerId().equals(source.getControllerId())) {
return false;
}
// because can activate is always called twice, result from first call will be used
Object object = game.getState().getValue("offering_" + card.getId());
if (object != null && object.equals(true)) {
Object alreadyConfirmed = game.getState().getValue("offering_ok_" + card.getId());
game.getState().setValue("offering_" + card.getId(), null);
game.getState().setValue("offering_ok_" + card.getId(), null);
return alreadyConfirmed != null;
} else {
// first call -> remove previous Ids
game.getState().setValue("offering_Id_" + card.getId(), null);
}
if (game.getBattlefield().count(((OfferingAbility) source).getFilter(), source.getSourceId(), source.getControllerId(), game) > 0) {
if (CardUtil.isCheckPlayableMode(affectedAbility)) {
return true;
}
FilterControlledCreaturePermanent filter = ((OfferingAbility) source).getFilter();
Card spellToCast = game.getCard(source.getSourceId());
Player player = game.getPlayer(source.getControllerId());
if (player != null && !CardUtil.isCheckPlayableMode(affectedAbility)
&& player.chooseUse(Outcome.Benefit, "Offer a " + filter.getMessage() + " to cast " + spellToCast.getName() + '?', source, game)) {
Target target = new TargetControlledCreaturePermanent(1, 1, filter, true);
player.chooseTarget(Outcome.Sacrifice, target, source, game);
if (!target.isChosen()) {
return false;
}
game.getState().setValue("offering_" + card.getId(), true);
Permanent offer = game.getPermanent(target.getFirstTarget());
if (offer != null) {
UUID activationId = UUID.randomUUID();
OfferingCostReductionEffect effect = new OfferingCostReductionEffect(spellToCast.getSpellAbility().getId(), new MageObjectReference(offer, game), activationId);
game.addEffect(effect, source);
game.getState().setValue("offering_ok_" + card.getId(), true);
game.getState().setValue("offering_Id_" + card.getId(), activationId);
return true;
}
} else {
game.getState().setValue("offering_" + card.getId(), true);
}
}
}
return false;
}
}
class OfferingCostReductionEffect extends CostModificationEffectImpl {
private final UUID spellAbilityId;
private final UUID activationId;
private final MageObjectReference offeredPermanent;
// private final ManaCosts<ManaCost> manaCostsToReduce;
OfferingCostReductionEffect(UUID spellAbilityId, MageObjectReference offeredPermanent, UUID activationId) {
super(Duration.OneUse, Outcome.Benefit, CostModificationType.REDUCE_COST);
this.spellAbilityId = spellAbilityId;
this.offeredPermanent = offeredPermanent;
this.activationId = activationId;
staticText = "mana costs reduction from offering";
}
OfferingCostReductionEffect(OfferingCostReductionEffect effect) {
super(effect);
this.spellAbilityId = effect.spellAbilityId;
this.offeredPermanent = effect.offeredPermanent;
this.activationId = effect.activationId;
}
@Override
public boolean apply(Game game, Ability source, Ability abilityToModify) {
Permanent toOffer = offeredPermanent.getPermanent(game);
if (toOffer != null) {
toOffer.sacrifice(source.getSourceId(), game);
CardUtil.reduceCost((SpellAbility) abilityToModify, toOffer.getSpellAbility().getManaCosts());
}
game.getState().setValue("offering_" + source.getSourceId(), null);
game.getState().setValue("offering_ok_" + source.getSourceId(), null);
this.discard();
return true;
}
@Override
public boolean applies(Ability abilityToModify, Ability source, Game game) {
if (CardUtil.isCheckPlayableMode(abilityToModify)) { // Cost modifaction does not work correctly for checking available spells
return false;
}
if (abilityToModify.getId().equals(spellAbilityId) && abilityToModify instanceof SpellAbility) {
Card card = game.getCard(source.getSourceId());
if (card != null) {
Object object = game.getState().getValue("offering_Id_" + card.getId());
if (object != null && ((UUID) object).equals(this.activationId) && offeredPermanent.getPermanent(game) != null) {
return true;
}
}
// no or other id, this effect is no longer valid
this.discard();
}
return false;
}
@Override
public OfferingCostReductionEffect copy() {
return new OfferingCostReductionEffect(this);
}
}