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 * Copyright 2010 BetaSteward_at_googlemail.com. All rights reserved.
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 *    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.
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 * 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
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package mage.game;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import mage.abilities.Ability;
import mage.abilities.common.SimpleStaticAbility;
import mage.abilities.effects.common.InfoEffect;
import mage.abilities.effects.common.continuous.CommanderManaReplacementEffect;
import mage.abilities.effects.common.continuous.CommanderReplacementEffect;
import mage.abilities.effects.common.cost.CommanderCostModification;
import mage.cards.Card;
import mage.cards.Cards;
import mage.cards.CardsImpl;
import mage.constants.MultiplayerAttackOption;
import mage.constants.Outcome;
import mage.constants.PhaseStep;
import mage.constants.RangeOfInfluence;
import mage.constants.Zone;
import mage.filter.FilterCard;
import mage.game.turn.TurnMod;
import mage.players.Player;
import mage.target.common.TargetCardInHand;
import mage.util.CardUtil;
import mage.watchers.common.CommanderInfoWatcher;

public abstract class GameCommanderImpl extends GameImpl {

    static boolean CHECK_COMMANDER_DAMAGE = true;

    private final Map<UUID, Cards> mulliganedCards = new HashMap<>();
    // private final Set<CommanderInfoWatcher> commanderCombatWatcher = new HashSet<>();

    protected boolean alsoHand;    // replace commander going to hand
    protected boolean alsoLibrary; // replace commander going to library
    protected boolean startingPlayerSkipsDraw = true;

    public GameCommanderImpl(MultiplayerAttackOption attackOption, RangeOfInfluence range, int freeMulligans, int startLife) {
        super(attackOption, range, freeMulligans, startLife);
    }

    public GameCommanderImpl(final GameCommanderImpl game) {
        super(game);
        this.alsoHand = game.alsoHand;
        this.alsoLibrary = game.alsoLibrary;
        this.startingPlayerSkipsDraw = game.startingPlayerSkipsDraw;
    }

    @Override
    protected void init(UUID choosingPlayerId) {
        Ability ability = new SimpleStaticAbility(Zone.COMMAND, new InfoEffect("Commander effects"));
        //Move commander to command zone
        for (UUID playerId : state.getPlayerList(startingPlayerId)) {
            Player player = getPlayer(playerId);
            if (player != null) {
                if (player.getSideboard().size() > 0) {
                    Card commander = getCard((UUID) player.getSideboard().toArray()[0]);
                    if (commander != null) {
                        player.setCommanderId(commander.getId());
                        commander.moveToZone(Zone.COMMAND, null, this, true);
                        commander.getAbilities().setControllerId(player.getId());
                        ability.addEffect(new CommanderReplacementEffect(commander.getId(), alsoHand, alsoLibrary));
                        ability.addEffect(new CommanderCostModification(commander.getId()));
                        ability.addEffect(new CommanderManaReplacementEffect(player.getId(), CardUtil.getColorIdentity(commander)));
                        getState().setValue(commander.getId() + "_castCount", 0);
                        CommanderInfoWatcher watcher = new CommanderInfoWatcher(commander.getId(), CHECK_COMMANDER_DAMAGE);
                        getState().getWatchers().add(watcher);
                        watcher.addCardInfoToCommander(this);
                    }
                }
            }

        }
        this.getState().addAbility(ability, null);
        super.init(choosingPlayerId);
        if (startingPlayerSkipsDraw) {
            state.getTurnMods().add(new TurnMod(startingPlayerId, PhaseStep.DRAW));
        }
    }

    //20130711
    /*903.8. The Commander variant uses an alternate mulligan rule.
     * Each time a player takes a mulligan, rather than shuffling his or her entire hand of cards into his or her library, that player exiles any number of cards from his or her hand face down.
     * Then the player draws a number of cards equal to one less than the number of cards he or she exiled this way.
     * That player may look at all cards exiled this way while taking mulligans.
     * Once a player keeps an opening hand, that player shuffles all cards he or she exiled this way into his or her library.
     * */
    //TODO implement may look at exile cards
    @Override
    public void mulligan(UUID playerId) {
        Player player = getPlayer(playerId);
        TargetCardInHand target = new TargetCardInHand(1, player.getHand().size(), new FilterCard("card to mulligan"));
        target.setNotTarget(true);
        target.setRequired(false);
        if (player.choose(Outcome.Exile, player.getHand(), target, this)) {
            int numCards = target.getTargets().size();
            for (UUID uuid : target.getTargets()) {
                Card card = player.getHand().get(uuid, this);
                if (card != null) {
                    if (!mulliganedCards.containsKey(playerId)) {
                        mulliganedCards.put(playerId, new CardsImpl());
                    }
                    card.moveToExile(null, "", null, this);
                    card.setFaceDown(true, this);
                    mulliganedCards.get(playerId).add(card);
                }
            }
            int deduction = 1;
            if (freeMulligans > 0) {
                if (usedFreeMulligans != null && usedFreeMulligans.containsKey(player.getId())) {
                    int used = usedFreeMulligans.get(player.getId());
                    if (used < freeMulligans) {
                        deduction = 0;
                        usedFreeMulligans.put(player.getId(), used + 1);
                    }
                } else {
                    deduction = 0;
                    {

                    }
                    usedFreeMulligans.put(player.getId(), 1);
                }
            }
            player.drawCards(numCards - deduction, this);
            fireInformEvent(new StringBuilder(player.getLogName())
                    .append(" mulligans ")
                    .append(numCards)
                    .append(numCards == 1 ? " card" : " cards")
                    .append(deduction == 0 ? " for free and draws " : " down to ")
                    .append(Integer.toString(player.getHand().size()))
                    .append(player.getHand().size() <= 1 ? " card" : " cards").toString());
        }
    }

    @Override
    public void endMulligan(UUID playerId) {
        //return cards to
        Player player = getPlayer(playerId);
        if (player != null && mulliganedCards.containsKey(playerId)) {
            for (Card card : mulliganedCards.get(playerId).getCards(this)) {
                if (card != null) {
                    card.moveToZone(Zone.LIBRARY, null, this, false);
                    card.setFaceDown(false, this);
                }
            }
            if (mulliganedCards.get(playerId).size() > 0) {
                player.shuffleLibrary(this);
            }
        }
    }

    /* 20130711
     *903.14a A player that’s been dealt 21 or more combat damage by the same commander
     * over the course of the game loses the game. (This is a state-based action. See rule 704.)
     *
     */
    @Override
    protected boolean checkStateBasedActions() {
        for (Player player : getPlayers().values()) {
            CommanderInfoWatcher damageWatcher = (CommanderInfoWatcher) getState().getWatchers().get("CommanderCombatDamageWatcher", player.getCommanderId());
            if (damageWatcher == null) {
                continue;
            }
            for (Map.Entry<UUID, Integer> entrySet : damageWatcher.getDamageToPlayer().entrySet()) {
                if (entrySet.getValue() > 20) {
                    Player opponent = getPlayer(entrySet.getKey());
                    if (opponent != null && !opponent.hasLost() && player.isInGame()) {
                        opponent.lost(this);
                    }
                }
            }
        }
        return super.checkStateBasedActions();
    }

    @Override
    public Set<UUID> getOpponents(UUID playerId) {
        Set<UUID> opponents = new HashSet<>();
        for (UUID opponentId : this.getPlayer(playerId).getInRange()) {
            if (!opponentId.equals(playerId)) {
                opponents.add(opponentId);
            }
        }
        return opponents;
    }

    @Override
    public boolean isOpponent(Player player, UUID playerToCheck) {
        return !player.getId().equals(playerToCheck);
    }

    public void setAlsoHand(boolean alsoHand) {
        this.alsoHand = alsoHand;
    }

    public void setAlsoLibrary(boolean alsoLibrary) {
        this.alsoLibrary = alsoLibrary;
    }
}