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 *        conditions and the following disclaimer.
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 *        of conditions and the following disclaimer in the documentation and/or other materials
 *        provided with the distribution.
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package mage.cards.m;

import java.util.List;
import java.util.UUID;
import mage.MageObject;
import mage.abilities.Ability;
import mage.abilities.common.SpellCastOpponentTriggeredAbility;
import mage.abilities.effects.Effect;
import mage.abilities.effects.OneShotEffect;
import mage.cards.Card;
import mage.cards.CardImpl;
import mage.cards.CardSetInfo;
import mage.constants.CardType;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.filter.FilterSpell;
import mage.game.Game;
import mage.game.events.GameEvent;
import mage.game.stack.Spell;
import mage.players.Player;
import mage.target.targetpointer.FixedTarget;
import mage.watchers.common.SpellsCastWatcher;

/**
 *
 * @author fireshoes
 */
public class MindsDilation extends CardImpl {

    public MindsDilation(UUID ownerId, CardSetInfo setInfo) {
        super(ownerId,setInfo,new CardType[]{CardType.ENCHANTMENT},"{5}{U}{U}");

        // Whenever an opponent casts his or her first spell each turn, that player exiles the top card of his or her library. If it's a nonland card,
        // you may cast it without paying its mana cost.
        this.addAbility(new MindsDilationTriggeredAbility(new MindsDilationEffect(), false), new SpellsCastWatcher());
    }

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

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

class MindsDilationTriggeredAbility extends SpellCastOpponentTriggeredAbility {

    public MindsDilationTriggeredAbility(Effect effect, boolean optional) {
        super(Zone.BATTLEFIELD, effect, new FilterSpell(), optional);
    }

    public MindsDilationTriggeredAbility(SpellCastOpponentTriggeredAbility ability) {
        super(ability);
    }

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

    @Override
    public boolean checkTrigger(GameEvent event, Game game) {
        if (super.checkTrigger(event, game)) {
            SpellsCastWatcher watcher = (SpellsCastWatcher) game.getState().getWatchers().get(SpellsCastWatcher.class.getSimpleName());
            if (watcher != null) {
                List<Spell> spells = watcher.getSpellsCastThisTurn(event.getPlayerId());
                if (spells != null && spells.size() == 1) {
                    for (Effect effect : getEffects()) {
                        effect.setTargetPointer(new FixedTarget(event.getPlayerId()));
                    }
                    return true;
                }
            }
        }
        return false;
    }

    @Override
    public String getRule() {
        return "Whenever an opponent casts his or her first spell each turn, that player exiles the top card of his or her library."
                + " If it's a nonland card, you may cast it without paying its mana cost.";
    }
}

class MindsDilationEffect extends OneShotEffect {

    MindsDilationEffect() {
        super(Outcome.Benefit);
        this.staticText = "that player exiles the top card of his or her library. If it's a nonland card, you may cast it without paying its mana cost";
    }

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

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

    @Override
    public boolean apply(Game game, Ability source) {
        Player controller = game.getPlayer(source.getControllerId());
        MageObject sourceObject = source.getSourceObject(game);
        Player opponent = game.getPlayer(getTargetPointer().getFirst(game, source));
        if (controller != null && sourceObject != null && opponent != null) {
            if (opponent.getLibrary().hasCards()) {
                Card card = opponent.getLibrary().getFromTop(game);
                if (card != null && opponent.moveCards(card, Zone.EXILED, source, game)) {
                    if (!card.isLand()) {
                        if (controller.chooseUse(outcome, "Cast " + card.getLogName() + " without paying its mana cost from exile?", source, game)) {
                            controller.cast(card.getSpellAbility(), game, true);
                        }
                    }
                }
            }
            return true;
        }
        return false;
    }
}