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 *        of conditions and the following disclaimer in the documentation and/or other materials
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package mage.cards.a;

import mage.abilities.Ability;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.effects.ContinuousEffectImpl;
import mage.abilities.effects.Effect;
import mage.abilities.effects.common.AttachEffect;
import mage.abilities.effects.common.continuous.GainAbilityAttachedEffect;
import mage.abilities.keyword.EnchantAbility;
import mage.abilities.keyword.HexproofAbility;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.*;
import mage.game.Game;
import mage.game.permanent.Permanent;
import mage.target.TargetPermanent;
import mage.target.common.TargetCreaturePermanent;
import mage.util.CardUtil;

import java.util.UUID;

/**
 * @author LevelX2
 */
public class AlphaAuthority extends CardImpl {

    public AlphaAuthority(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{1}{G}");

        this.subtype.add("Aura");

        // Enchant creature
        TargetPermanent auraTarget = new TargetCreaturePermanent();
        this.getSpellAbility().addTarget(auraTarget);
        this.getSpellAbility().addEffect(new AttachEffect(Outcome.BoostCreature));
        Ability ability = new EnchantAbility(auraTarget.getTargetName());
        this.addAbility(ability);

        // Enchanted creature has hexproof and can't be blocked by more than one creature.
        ability = new SimpleStaticAbility(Zone.BATTLEFIELD, new GainAbilityAttachedEffect(HexproofAbility.getInstance(), AttachmentType.AURA, Duration.WhileOnBattlefield));
        Effect effect = new CantBeBlockedByMoreThanOneAttachedEffect(AttachmentType.AURA, 1);
        effect.setText("and can't be blocked by more than one creature");
        ability.addEffect(effect);
        this.addAbility(ability);
    }

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

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

class CantBeBlockedByMoreThanOneAttachedEffect extends ContinuousEffectImpl {

    protected int amount;
    protected AttachmentType attachmentType;

    public CantBeBlockedByMoreThanOneAttachedEffect(AttachmentType attachmentType, int amount) {
        this(attachmentType, amount, Duration.WhileOnBattlefield);
    }

    public CantBeBlockedByMoreThanOneAttachedEffect(AttachmentType attachmentType, int amount, Duration duration) {
        super(duration, Outcome.Benefit);
        this.amount = amount;
        this.attachmentType = attachmentType;
        staticText = attachmentType.verb() + " creature can't be blocked by more than " + CardUtil.numberToText(amount) + " creature" + (amount == 1 ? "" : "s");
    }

    public CantBeBlockedByMoreThanOneAttachedEffect(final CantBeBlockedByMoreThanOneAttachedEffect effect) {
        super(effect);
        this.amount = effect.amount;
        this.attachmentType = effect.attachmentType;
    }

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

    @Override
    public boolean apply(Layer layer, SubLayer sublayer, Ability source, Game game) {
        switch (layer) {
            case RulesEffects:
                Permanent attachment = game.getPermanent(source.getSourceId());
                if (attachment != null && attachment.getAttachedTo() != null) {
                    Permanent perm = game.getPermanent(attachment.getAttachedTo());
                    if (perm != null) {
                        perm.setMaxBlockedBy(amount);
                        return true;
                    }
                }
                break;
        }
        return false;
    }

    @Override
    public boolean apply(Game game, Ability source) {
        return false;
    }

    @Override
    public boolean hasLayer(Layer layer) {
        return layer == Layer.RulesEffects;
    }
}