/*
 * Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of
 *       conditions and the following disclaimer.
 *
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list
 *       of conditions and the following disclaimer in the documentation and/or other materials
 *       provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY BetaSteward_at_googlemail.com ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BetaSteward_at_googlemail.com OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation are those of the
 * authors and should not be interpreted as representing official policies, either expressed
 * or implied, of BetaSteward_at_googlemail.com.
 */
package mage.cards;

import mage.filter.FilterCard;
import mage.game.Game;
import mage.util.RandomUtil;
import mage.util.ThreadLocalStringBuilder;

import java.io.Serializable;
import java.util.*;
import java.util.stream.Collectors;

/**
 * @author BetaSteward_at_googlemail.com
 */
public class CardsImpl extends LinkedHashSet<UUID> implements Cards, Serializable {

    private static final ThreadLocalStringBuilder threadLocalBuilder = new ThreadLocalStringBuilder(200);

    private UUID ownerId;

    public CardsImpl() {
    }

    public CardsImpl(Card card) {
        if (card != null) {
            this.add(card.getId());
        }
    }

    public CardsImpl(Collection<UUID> cardIds) {
        if (cardIds != null) {
            this.addAll(cardIds);
        }
    }

    public CardsImpl(final CardsImpl cards) {
        this.addAll(cards);
        this.ownerId = cards.ownerId;
    }

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

    @Override
    public void add(Card card) {
        this.add(card.getId());
    }

    @Override
    public Card get(UUID cardId, Game game) {
        if (this.contains(cardId)) {
            return game.getCard(cardId);
        }
        return null;
    }

    @Override
    public void remove(Card card) {
        if (card == null) {
            return;
        }
        this.remove(card.getId());
    }

    @Override
    public void setOwner(UUID ownerId, Game game) {
        this.ownerId = ownerId;
        for (UUID card : this) {
            game.getCard(card).setOwnerId(ownerId);
        }
    }

    @Override
    public Card getRandom(Game game) {
        if (this.isEmpty()) {
            return null;
        }
        UUID[] cards = this.toArray(new UUID[this.size()]);
        return game.getCard(cards[RandomUtil.nextInt(cards.length)]);
    }

    @Override
    public int count(FilterCard filter, Game game) {
        return (int) stream().filter(cardId -> filter.match(game.getCard(cardId), game)).count();
    }

    @Override
    public int count(FilterCard filter, UUID playerId, Game game) {
        return (int) this.stream().filter(card -> filter.match(game.getCard(card), playerId, game)).count();

    }

    @Override
    public int count(FilterCard filter, UUID sourceId, UUID playerId, Game game) {
        if (sourceId == null) {
            return count(filter, playerId, game);
        }
        return (int) this.stream().filter(card -> filter.match(game.getCard(card), sourceId, playerId, game)).count();

    }

    @Override
    public Set<Card> getCards(FilterCard filter, UUID sourceId, UUID playerId, Game game) {
        Set<Card> cards = new LinkedHashSet<>();
        for (UUID cardId : this) {
            Card card = game.getCard(cardId);
            if (card != null) {
                boolean match = filter.match(card, sourceId, playerId, game);
                if (match) {
                    cards.add(game.getCard(cardId));
                }
            }
        }
        return cards;
    }

    @Override
    public Set<Card> getCards(FilterCard filter, Game game) {
        return stream().map(game::getCard).filter(card -> filter.match(card, game)).collect(Collectors.toSet());
    }

    @Override
    public Set<Card> getCards(Game game) {
        Set<Card> cards = new LinkedHashSet<>();
        for (Iterator<UUID> it = this.iterator(); it.hasNext(); ) { // Changed to iterator because of ConcurrentModificationException
            UUID cardId = it.next();

            Card card = game.getCard(cardId);
            if (card == null) {
                card = game.getPermanent(cardId); // needed to get TokenCard objects
            }
            if (card != null) { // this can happen during the cancelation (player concedes) of a game
                cards.add(card);
            }
        }
        return cards;
    }

    @Override
    public String getValue(Game game) {
        StringBuilder sb = threadLocalBuilder.get();
        List<String> cards = new ArrayList<>();
        for (UUID cardId : this) {
            Card card = game.getCard(cardId);
            cards.add(card.getName());
        }
        Collections.sort(cards);
        for (String name : cards) {
            sb.append(name).append(':');
        }
        return sb.toString();
    }

    @Override
    public void addAll(List<Card> cards) {
        for (Card card : cards) {
            add(card.getId());
        }
    }

    @Override
    public void addAll(Set<Card> cards) {
        for (Card card : cards) {
            add(card.getId());
        }
    }

    @Override
    public Collection<Card> getUniqueCards(Game game) {
        Map<String, Card> cards = new HashMap<>();
        for (UUID cardId : this) {
            Card card = game.getCard(cardId);
            cards.putIfAbsent(card.getName(), card);
        }
        return cards.values();
    }

}