content: /*
  	This file is part of the OdinMS Maple Story Server
      Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
  		       Matthias Butz <matze@odinms.de>
  		       Jan Christian Meyer <vimes@odinms.de>
  
      This program is free software: you can redistribute it and/or modify
      it under the terms of the GNU Affero General Public License as
      published by the Free Software Foundation version 3 as published by
      the Free Software Foundation. You may not use, modify or distribute
      this program under any other version of the GNU Affero General Public
      License.
  
      This program is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU Affero General Public License for more details.
  
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
  package client;
  
  import java.sql.Connection;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.util.Collections;
  import java.util.LinkedHashMap;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.HashSet;
  import java.util.Set;
  import java.util.concurrent.locks.Lock;
  import java.util.concurrent.Semaphore;
  import tools.DatabaseConnection;
  import tools.MaplePacketCreator;
  import net.server.audit.locks.MonitoredLockType;
  import net.server.audit.locks.factory.MonitoredReentrantLockFactory;
  
  public final class MonsterBook {
      private static final Semaphore semaphore = new Semaphore(10);
      
      private int specialCard = 0;
      private int normalCard = 0;
      private int bookLevel = 1;
      private Map<Integer, Integer> cards = new LinkedHashMap<>();
      private Lock lock = MonitoredReentrantLockFactory.createLock(MonitoredLockType.BOOK);
  
      public Set<Entry<Integer, Integer>> getCardSet() {
          lock.lock();
          try {
              return new HashSet<>(cards.entrySet());
          } finally {
              lock.unlock();
          }
      }
      
      public void addCard(final MapleClient c, final int cardid) {
          c.getPlayer().getMap().broadcastMessage(c.getPlayer(), MaplePacketCreator.showForeignCardEffect(c.getPlayer().getId()), false);
          
          Integer qty;
          lock.lock();
          try {
              qty = cards.get(cardid);
              
              if(qty != null) {
                  if(qty < 5) {
                      cards.put(cardid, qty + 1);
                  }
              } else {
                  cards.put(cardid, 1);
                  qty = 0;
                  
                  if (cardid / 1000 >= 2388) {
                      specialCard++;
                  } else {
                      normalCard++;
                  }
              }
          } finally {
              lock.unlock();
          }
          
          if(qty < 5) {
              if (qty == 0) {     // leveling system only accounts unique cards
                  calculateLevel();
              }
              
              c.announce(MaplePacketCreator.addCard(false, cardid, qty + 1));
              c.announce(MaplePacketCreator.showGainCard());
          } else {
              c.announce(MaplePacketCreator.addCard(true, cardid, 5));
          }
      }
  
      private void calculateLevel() {
          lock.lock();
          try {
              int collectionExp = (normalCard + specialCard);
              
              int level = 0, expToNextlevel = 1;
              do {
                  level++;
                  expToNextlevel += level * 10;
              } while (collectionExp >= expToNextlevel);
              
              bookLevel = level;  // thanks IxianMace for noticing book level differing between book UI and character info UI
          } finally {
              lock.unlock();
          }
      }
  
      public int getBookLevel() {
          lock.lock();
          try {
              return bookLevel;
          } finally {
              lock.unlock();
          }
      }
  
      public Map<Integer, Integer> getCards() {
          lock.lock();
          try {
              return Collections.unmodifiableMap(cards);
          } finally {
              lock.unlock();
          }
      }
  
      public int getTotalCards() {
          lock.lock();
          try {
              return specialCard + normalCard;
          } finally {
              lock.unlock();
          }
      }
  
      public int getNormalCard() {
          lock.lock();
          try {
              return normalCard;
          } finally {
              lock.unlock();
          }
      }
  
      public int getSpecialCard() {
          lock.lock();
          try {
              return specialCard;
          } finally {
              lock.unlock();
          }
      }
  
      public void loadCards(final int charid) throws SQLException {
          lock.lock();
          try {
              Connection con = DatabaseConnection.getConnection();
              try (PreparedStatement ps = con.prepareStatement("SELECT cardid, level FROM monsterbook WHERE charid = ? ORDER BY cardid ASC")) {
                  ps.setInt(1, charid);
                  try (ResultSet rs = ps.executeQuery()) {
                      int cardid, level;
                      while (rs.next()) {
                          cardid = rs.getInt("cardid");
                          level = rs.getInt("level");
                          if (cardid / 1000 >= 2388) {
                              specialCard++;
                          } else {
                              normalCard++;
                          }
                          cards.put(cardid, level);
                      }
                  }
              }
  
              con.close();
          } finally {
              lock.unlock();
          }
          
          calculateLevel();
      }
  
      private static int saveStringConcat(char[] data, int pos, Integer i) {
          return saveStringConcat(data, pos, i.toString());
      }
      
      private static int saveStringConcat(char[] data, int pos, String s) {
          int len = s.length();
          for(int j = 0; j < len; j++) {
              data[pos + j] = s.charAt(j);
          }
          
          return pos + len;
      }
      
      private static String getSaveString(Integer charid, Set<Entry<Integer, Integer>> cardSet) {
          semaphore.acquireUninterruptibly();
          try {
              char[] save = new char[400000]; // 500 * 10 * 10 * 8
              int i = 0;
  
              i = saveStringConcat(save, i, "INSERT INTO monsterbook VALUES ");
  
              for (Entry<Integer, Integer> all : cardSet) {   // assuming maxsize 500 unique cards
                  i = saveStringConcat(save, i, "(");
                  i = saveStringConcat(save, i, charid);  //10 chars
                  i = saveStringConcat(save, i, ", ");
                  i = saveStringConcat(save, i, all.getKey());  //10 chars
                  i = saveStringConcat(save, i, ", ");
                  i = saveStringConcat(save, i, all.getValue());  //1 char due to being 0 ~ 5
                  i = saveStringConcat(save, i, "),");
              }
              
              return new String(save, 0, i - 1);
          } finally {
              semaphore.release();
          }
      }
      
      public void saveCards(final int charid) {
          Set<Entry<Integer, Integer>> cardSet = getCardSet();
          
          if (cardSet.isEmpty()) {
              return;
          }
          try {
              Connection con = DatabaseConnection.getConnection();
              PreparedStatement ps = con.prepareStatement("DELETE FROM monsterbook WHERE charid = ?");
              ps.setInt(1, charid);
              ps.execute();
              ps.close();
              
              ps = con.prepareStatement(getSaveString(charid, cardSet));
              ps.execute();
              ps.close();
              con.close();
          } catch (SQLException e) {
              e.printStackTrace();
          }
      }
      
      public static int[] getCardTierSize() {
          try {
              Connection con = DatabaseConnection.getConnection();
              PreparedStatement ps = con.prepareStatement("SELECT COUNT(*) FROM monstercarddata GROUP BY floor(cardid / 1000);");
              ResultSet rs = ps.executeQuery();
              
              rs.last();
              int[] tierSizes = new int[rs.getRow()];
              rs.beforeFirst();
              
              while (rs.next()) {
                  tierSizes[rs.getRow() - 1] = rs.getInt(1);
              }
              
              rs.close();
              ps.close();
              con.close();
              
              return tierSizes;
          } catch (SQLException e) {
              e.printStackTrace();
              return new int[0];
          }
      }
  }
  