/*
* 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 java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import java.util.UUID;
import mage.constants.Zone;
import mage.filter.FilterCard;
import mage.game.Game;
import mage.players.Player;
import mage.util.ThreadLocalStringBuilder;
import org.apache.log4j.Logger;


/**
 *
 * @author BetaSteward_at_googlemail.com
 */
public class CardsImpl extends LinkedHashSet<UUID> implements Cards, Serializable {
    
    private static final Logger logger = Logger.getLogger(CardsImpl.class);
    private static final transient ThreadLocalStringBuilder threadLocalBuilder = new ThreadLocalStringBuilder(200);

    private static Random rnd = new Random();
    private UUID ownerId;
    private Zone zone;
    private boolean errorLogged = false;

    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(Zone zone) {
        this.zone = zone;
    }
    
    public CardsImpl(Zone zone, Collection<Card> cards) {
        this(zone);
        for (Card card: cards) {
            this.add(card.getId());
        }
    }

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

    @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.size() == 0) {
            return null;
        }
        UUID[] cards = this.toArray(new UUID[0]);
        return game.getCard(cards[rnd.nextInt(cards.length)]);
    }

    @Override
    public int count(FilterCard filter, Game game) {
        int result = 0;
        for (UUID cardId: this) {
            if (filter.match(game.getCard(cardId), game)) {
                result++;
            }
        }
        return result;
    }

    @Override
    public int count(FilterCard filter, UUID playerId, Game game) {
        int result = 0;
        for (UUID card: this) {
            if (filter.match(game.getCard(card), playerId, game)) {
                result++;
            }
        }
        return result;
    }

    @Override
    public int count(FilterCard filter, UUID sourceId, UUID playerId, Game game) {
        if (sourceId == null) {
            return count(filter, playerId, game);
        }
        int result = 0;
        for (UUID card: this) {
            if (filter.match(game.getCard(card), sourceId, playerId, game)) {
                result++;
            }
        }
        return result;
    }

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

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

    @Override
    public Set<Card> getCards(Game game) {
        Set<Card> cards = new LinkedHashSet<>();
        for (UUID cardId: this) {
            Card card = game.getCard(cardId);
            if (card != null) {
                cards.add(card);
            } else {
                if (!errorLogged) { // this runs in iteration, so the flag helps to stop to fill the log file
                    // seems like this can happen during the cancelation of a game
                    logger.error("Card not found  cardId: " + cardId + " gameId: " + game.getId() );
                    for (Player player :game.getPlayers().values()) {
                        logger.error(player.getName() + " inGame=" + (player.isInGame() ? "true":"false"));
                    }
                    for (StackTraceElement stackTraceElement: Thread.currentThread().getStackTrace()) {
                        logger.error(stackTraceElement.toString());
                    }
                    errorLogged = true;
                }
            }
        }
        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 Collection<Card> getUniqueCards(Game game) {
        Map<String, Card> cards = new HashMap<>();
        for(UUID cardId: this) {
            Card card = game.getCard(cardId);
            if (!cards.containsKey(card.getName())) {
                cards.put(card.getName(), card);
            }
        }
        return cards.values();
    }

}