/*
 * Juick
 * Copyright (C) 2008-2011, Ugnich Anton
 *
 * 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, either version 3 of the
 * License, or (at your option) any later version.
 *
 * 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 com.juick.server;

import org.springframework.jdbc.core.JdbcTemplate;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author Ugnich Anton
 */
public class MessagesQueries {

    private static final Logger LOGGER = Logger.getLogger(MessagesQueries.class.getName());

    public static int createMessage(Connection sql, int uid, String txt, String attachment, List<com.juick.Tag> tags) {
        int mid = 0;

        PreparedStatement stmt = null;
        ResultSet rs;
        try {
            stmt = sql.prepareStatement("INSERT INTO messages(user_id,attach) VALUES (?,?)", Statement.RETURN_GENERATED_KEYS);
            stmt.setInt(1, uid);
            if (attachment != null) {
                stmt.setString(2, attachment);
            } else {
                stmt.setNull(2, Types.VARCHAR);
            }
            stmt.executeUpdate();
            rs = stmt.getGeneratedKeys();
            if (rs.first()) {
                mid = rs.getInt(1);
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(null, stmt);
        }

        if (mid > 0) {
            String tagsNames = "";
            String tagsIDs = "";

            for (int i = 0; i < tags.size(); i++) {
                if (i > 0) {
                    tagsNames += " ";
                    tagsIDs += ",";
                }
                tagsNames += tags.get(i).Name;
                tagsIDs += "(" + mid + "," + tags.get(i).TID + ")";
            }

            try {
                stmt = sql.prepareStatement("INSERT INTO messages_tags(message_id,tag_id) VALUES " + tagsIDs);
                stmt.executeUpdate();
            } catch (SQLException e) {
                LOGGER.log(Level.SEVERE, "sql exception", e);
            } finally {
                Utils.finishSQL(null, stmt);
            }

            try {
                stmt = sql.prepareStatement("INSERT INTO messages_txt(message_id,tags,txt) VALUES (?,?,?)");
                stmt.setInt(1, mid);
                if (tagsNames.isEmpty()) {
                    stmt.setNull(2, Types.VARCHAR);
                } else {
                    stmt.setString(2, tagsNames);
                }
                stmt.setString(3, txt);
                stmt.executeUpdate();
            } catch (SQLException e) {
                LOGGER.log(Level.SEVERE, "sql exception", e);
            } finally {
                Utils.finishSQL(null, stmt);
            }
        }

        return mid;
    }

    public static int createReply(Connection sql, int mid, int rid, int uid, String txt, String attachment) {
        int ridnew = getReplyIDIncrement(sql, mid);

        PreparedStatement stmt = null;
        try {
            stmt = sql.prepareStatement("INSERT INTO replies(message_id,reply_id,user_id,replyto,attach,txt) VALUES (?,?,?,?,?,?)");
            stmt.setInt(1, mid);
            stmt.setInt(2, ridnew);
            stmt.setInt(3, uid);
            stmt.setInt(4, rid);
            if (attachment != null) {
                stmt.setString(5, attachment);
            } else {
                stmt.setNull(5, Types.VARCHAR);
            }
            stmt.setString(6, txt);
            if (stmt.executeUpdate() == 0) {
                ridnew = 0;
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(null, stmt);
        }

        if (ridnew > 0) {
            SQLHelpers.executeInt(sql, "UPDATE messages SET replies=replies+1 WHERE message_id=?", mid);
        }

        return ridnew;
    }

    public static int getReplyIDIncrement(Connection sql, int mid) {
        int rid = 0;

        SQLHelpers.execute(sql, "LOCK TABLES messages WRITE");
        if (SQLHelpers.executeInt(sql, "UPDATE messages SET maxreplyid=maxreplyid+1 WHERE message_id=?", mid) == 1) {
            rid = SQLHelpers.getInt(sql, "SELECT maxreplyid FROM messages WHERE message_id=?", mid, 0);
        }
        SQLHelpers.execute(sql, "UNLOCK TABLES");

        return rid;
    }

    public static boolean recommendMessage(Connection sql, int mid, int vuid) {
        boolean res = SQLHelpers.execute(sql, "INSERT IGNORE INTO favorites(user_id,message_id) VALUES (" + vuid + "," + mid + ")") == 1;
        if (res) {
            SQLHelpers.executeInt(sql, "UPDATE messages SET likes=likes+1 WHERE message_id=?", mid);
        }
        return res;
    }

    public static boolean canViewThread(Connection sql, int mid, int uid) {

        int privacy = 0;
        int owner_uid = 0;

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT user_id,privacy FROM messages WHERE messages.message_id=?");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            if (rs.first()) {
                owner_uid = rs.getInt(1);
                privacy = rs.getInt(2);
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        return privacy >= 0
                || uid == owner_uid
                || ((privacy == -1 || privacy == -2) && uid > 0 && UserQueries.isInWL(sql, owner_uid, uid));
    }

    public static boolean isReadOnly(Connection sql, int mid) {
        boolean ret = false;

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT readonly FROM messages WHERE message_id=?");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            if (rs.first()) {
                ret = rs.getInt(1) == 1;
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return ret;
    }

    public static boolean isSubscribed(Connection sql, int uid, int mid) {
        boolean ret = false;

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT 1 FROM subscr_messages WHERE suser_id=? AND message_id=?");
            stmt.setInt(1, uid);
            stmt.setInt(2, mid);
            rs = stmt.executeQuery();
            if (rs.first()) {
                ret = rs.getInt(1) == 1;
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return ret;
    }

    public static int getMessagePrivacy(Connection sql, int mid) {
        return SQLHelpers.getInt(sql, "SELECT privacy FROM messages WHERE message_id=?", mid, -4);
    }

    public static com.juick.Message getMessage(Connection sql, int mid) {
        com.juick.Message msg = null;

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT messages.user_id,users.nick,TIMESTAMPDIFF(MINUTE,messages.ts,NOW()),DATE_FORMAT(messages.ts,'%Y-%m-%d %H:%i:%s'),messages.readonly,messages.privacy,messages.replies,messages.attach,messages.place_id,messages.lat,messages.lon,messages.likes,messages.hidden FROM messages INNER JOIN users ON messages.user_id=users.id WHERE messages.message_id=?");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            if (rs.first()) {
                msg = new com.juick.Message();
                msg.MID = mid;
                msg.User = new com.juick.User();
                msg.User.UID = rs.getInt(1);
                msg.User.UName = rs.getString(2);
                msg.TimeAgo = rs.getInt(3);
                msg.TimestampString = rs.getString(4);
                msg.ReadOnly = rs.getBoolean(5);
                msg.Privacy = rs.getInt(6);
                msg.FriendsOnly = msg.Privacy < 0;
                msg.Replies = rs.getInt(7);
                msg.AttachmentType = rs.getString(8);
                //if (rs.getInt(9) > 0) {
                //    msg.Place = PlacesQueries.getPlace(sql, rs.getInt(9));
                //}
                if (rs.getDouble(10) != 0) {
                    msg.Place = new com.juick.Place();
                    msg.Place.lat = rs.getDouble(10);
                    msg.Place.lon = rs.getDouble(11);
                }
                msg.Likes = rs.getInt(12);
                msg.Hidden = rs.getBoolean(13);
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        if (msg == null) {
            return null;
        }

        try {
            stmt = sql.prepareStatement("SELECT tags,repliesby,txt FROM messages_txt WHERE message_id=?");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            if (rs.first()) {
                if (rs.getString(1) != null) {
                    msg.parseTags(rs.getString(1));
                }
                msg.RepliesBy = rs.getString(2);
                msg.Text = rs.getString(3);
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        return msg;
    }

    public static com.juick.Message getReply(Connection sql, int mid, int rid) {
        com.juick.Message msg = null;

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT replies.user_id,users.nick,replies.replyto,DATE_FORMAT(replies.ts,'%Y-%m-%d %H:%i:%s'),replies.attach,replies.txt FROM replies INNER JOIN users ON replies.user_id=users.id WHERE replies.message_id=? AND replies.reply_id=?");
            stmt.setInt(1, mid);
            stmt.setInt(2, rid);
            rs = stmt.executeQuery();
            if (rs.first()) {
                msg = new com.juick.Message();
                msg.MID = mid;
                msg.RID = rid;
                msg.User = new com.juick.User();
                msg.User.UID = rs.getInt(1);
                msg.User.UName = rs.getString(2);
                msg.ReplyTo = rs.getInt(3);
                msg.TimestampString = rs.getString(4);
                msg.AttachmentType = rs.getString(5);
                msg.Text = rs.getString(6);
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        return msg;
    }

    public static com.juick.User getMessageAuthor(Connection sql, int mid) {
        com.juick.User user = null;

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT messages.user_id,users.nick FROM messages INNER JOIN users ON messages.user_id=users.id WHERE messages.message_id=?");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            if (rs.first()) {
                user = new com.juick.User();
                user.UID = rs.getInt(1);
                user.UName = rs.getString(2);
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return user;
    }

    public static List<com.juick.Tag> getMessageTags(Connection sql, int mid) {
        List<com.juick.Tag> tags = new ArrayList<>();

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT tags.tag_id,synonym_id,name,stat_messages FROM tags INNER JOIN messages_tags ON (messages_tags.message_id=? AND messages_tags.tag_id=tags.tag_id)");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                com.juick.Tag t = new com.juick.Tag();
                t.TID = rs.getInt(1);
                t.SynonymID = rs.getInt(2);
                t.Name = rs.getString(3);
                t.UsageCnt = rs.getInt(4);
                tags.add(t);
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        return tags;
    }

    public static List<Integer> getMessageTagsIDs(Connection sql, int mid) {
        List<Integer> tids = new ArrayList<>();

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT tag_id FROM messages_tags WHERE message_id=?");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                tids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        return tids;
    }

    public static ArrayList<String> getMessageRecommendations(Connection sql, int mid) {
        ArrayList<String> users = new ArrayList<>();

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT users.nick FROM favorites INNER JOIN users ON (favorites.message_id=? AND favorites.user_id=users.id)");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                users.add(rs.getString(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        return users;
    }

    public static List<Integer> getAll(Connection sql, int visitor_uid, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (visitor_uid > 1) {
                if (before > 0) {
                    stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id<? AND hidden=0" +
                            " AND (privacy>0 OR user_id=?) AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?)" +
                            " AND user_id NOT IN (SELECT id from users WHERE banned=1) ORDER BY message_id DESC LIMIT 20");
                    stmt.setInt(1, before);
                    stmt.setInt(2, visitor_uid);
                    stmt.setInt(3, visitor_uid);
                } else {
                    stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE hidden=0" +
                            " AND (privacy>0 OR user_id=?)" +
                            " AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?)" +
                            " AND user_id NOT IN (SELECT id from users WHERE banned=1) ORDER BY message_id DESC LIMIT 20");
                    stmt.setInt(1, visitor_uid);
                    stmt.setInt(2, visitor_uid);
                }
            } else {
                if (before > 0) {
                    stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id<?" +
                            " AND hidden=0 AND privacy>0 AND user_id NOT IN (SELECT id from users WHERE banned=1) " +
                            " ORDER BY message_id DESC LIMIT 20");
                    stmt.setInt(1, before);
                } else {
                    stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE hidden=0 AND privacy>0" +
                            " AND user_id NOT IN (SELECT id from users WHERE banned=1) ORDER BY message_id DESC LIMIT 20");
                }

            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getTag(Connection sql, int tid, int visitor_uid, int before, int cnt) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
//                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages_tags INNER JOIN messages USING(message_id) WHERE messages_tags.tag_id IN (SELECT tag_id FROM tags WHERE tag_id=? OR synonym_id=?) AND messages.message_id<? AND (messages.privacy>0 OR messages.user_id=?) ORDER BY messages.message_id DESC LIMIT ?");
                stmt = sql.prepareStatement("SELECT message_id FROM (tags INNER JOIN messages_tags ON ((tags.synonym_id=? OR tags.tag_id=?) AND tags.tag_id=messages_tags.tag_id)) INNER JOIN messages USING(message_id) WHERE messages.message_id<? AND (messages.privacy>0 OR messages.user_id=?) ORDER BY message_id DESC LIMIT ?");
                stmt.setInt(1, tid);
                stmt.setInt(2, tid);
                stmt.setInt(3, before);
                stmt.setInt(4, visitor_uid);
                stmt.setInt(5, cnt);
            } else {
                //stmt = sql.prepareStatement("SELECT messages.message_id FROM messages_tags INNER JOIN messages USING(message_id) WHERE messages_tags.tag_id IN (SELECT tag_id FROM tags WHERE tag_id=? OR synonym_id=?) AND (messages.privacy>0 OR messages.user_id=?) ORDER BY messages.message_id DESC LIMIT ?");
                stmt = sql.prepareStatement("SELECT message_id FROM (tags INNER JOIN messages_tags ON ((tags.synonym_id=? OR tags.tag_id=?) AND tags.tag_id=messages_tags.tag_id)) INNER JOIN messages USING(message_id) WHERE messages.privacy>0 OR messages.user_id=? ORDER BY message_id DESC LIMIT ?");
                stmt.setInt(1, tid);
                stmt.setInt(2, tid);
                stmt.setInt(3, visitor_uid);
                stmt.setInt(4, cnt);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getTags(Connection sql, String tids, int visitor_uid, int before, int cnt) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages_tags INNER JOIN messages USING(message_id) WHERE messages_tags.tag_id IN (" + tids + ") AND messages.message_id<? AND (messages.privacy>0 OR messages.user_id=?) ORDER BY messages.message_id DESC LIMIT ?");
                stmt.setInt(1, before);
                stmt.setInt(2, visitor_uid);
                stmt.setInt(3, cnt);
            } else {
                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages_tags INNER JOIN messages USING(message_id) WHERE messages_tags.tag_id IN (" + tids + ") AND (messages.privacy>0 OR messages.user_id=?) ORDER BY messages.message_id DESC LIMIT ?");
                stmt.setInt(1, visitor_uid);
                stmt.setInt(2, cnt);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getPlace(Connection sql, int place_id, int visitor_uid, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE place_id=? AND message_id<? AND (privacy>0 OR user_id=?) ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, place_id);
                stmt.setInt(2, before);
                stmt.setInt(3, visitor_uid);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE place_id=? AND (privacy>0 OR user_id=?) ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, place_id);
                stmt.setInt(2, visitor_uid);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getMyFeed(JdbcTemplate sql, int uid, int before) {
        List<Integer> mids = new ArrayList<>(40);
        if (before > 0) {
            mids = sql.queryForList("SELECT message_id FROM messages " +
                            "INNER JOIN subscr_users ON (subscr_users.suser_id=? AND subscr_users.user_id=messages.user_id) " +
                            "WHERE message_id<? AND (privacy>=0 OR (privacy>=-2 AND privacy<=-1 AND messages.user_id " +
                            "IN (SELECT user_id FROM wl_users WHERE wl_user_id=?))) ORDER BY message_id DESC LIMIT 20",
                    Integer.class, new Object[]{uid, before, uid});
        } else {
            mids = sql.queryForList("SELECT message_id FROM messages " +
                            "INNER JOIN subscr_users ON (subscr_users.suser_id=? " +
                            "AND subscr_users.user_id=messages.user_id) " +
                            "WHERE (privacy>=0 OR (privacy>=-2 AND privacy<=-1 AND messages.user_id " +
                            "IN (SELECT user_id FROM wl_users WHERE wl_user_id=?))) ORDER BY message_id DESC LIMIT 20",
                    Integer.class, new Object[]{uid, uid});
        }


        if (before > 0) {
            mids.addAll(sql.queryForList("SELECT message_id FROM messages " +
                            "WHERE user_id=? AND message_id<? ORDER BY message_id DESC LIMIT 20", Integer.class,
                    new Object[]{uid, before}));
        } else {
            mids.addAll(sql.queryForList("SELECT message_id FROM messages " +
                            "WHERE user_id=? ORDER BY message_id DESC LIMIT 20", Integer.class,
                    new Object[]{uid}));
        }

        Collections.sort(mids, Collections.reverseOrder());
        int remove = mids.size() - 20;
        for (int i = 0; i < remove; i++) {
            mids.remove(20);
        }

        return mids;
    }

    public static List<Integer> getPrivate(Connection sql, int uid, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND privacy<0 AND message_id<? ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, uid);
                stmt.setInt(2, before);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND privacy<0 ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, uid);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getDiscussions(Connection sql, int uid, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM subscr_messages WHERE suser_id=? AND message_id<? ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, uid);
                stmt.setInt(2, before);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM subscr_messages WHERE suser_id=? ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, uid);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        return mids;
    }

    public static List<Integer> getRecommended(Connection sql, int uid, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM favorites WHERE user_id IN (SELECT user_id FROM subscr_users WHERE suser_id=?) AND message_id<? ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, uid);
                stmt.setInt(2, before);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM favorites WHERE user_id IN (SELECT user_id FROM subscr_users WHERE suser_id=?) ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, uid);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }


        return mids;
    }

    public static List<Integer> getPopular(Connection sql, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id<? AND privacy>0 AND popular>0 ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, before);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE privacy>0 AND popular>0 ORDER BY message_id DESC LIMIT 20");
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getPhotos(Connection sql, int visitor_uid, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id<? AND (privacy>0 OR user_id=?) AND attach IS NOT NULL AND user_id NOT IN (SELECT id from users WHERE banned=1) ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, before);
                stmt.setInt(2, visitor_uid);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE (privacy>0 OR user_id=?) AND attach IS NOT NULL AND user_id NOT IN (SELECT id from users WHERE banned=1) ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, visitor_uid);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getSearch(Connection sql, Connection sqlSearch, String search, int before) {
        List<Integer> mids0 = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {

            if (before > 0) {
                stmt = sqlSearch.prepareStatement("SELECT id AS message_id FROM messages WHERE MATCH(?) AND id<? ORDER BY id DESC LIMIT 25");
                stmt.setString(1, search);
                stmt.setInt(2, before);
            } else {
                stmt = sqlSearch.prepareStatement("SELECT id AS message_id FROM messages WHERE MATCH(?) ORDER BY id DESC LIMIT 25");
                stmt.setString(1, search);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids0.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        List<Integer> mids = new ArrayList<>(20);
        if (mids0.size() > 0) {
            try {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id IN (" + Utils.convertArrayInt2String(mids0) + ") AND privacy>0 ORDER BY message_id DESC LIMIT 20");
                rs = stmt.executeQuery();
                rs.beforeFirst();
                while (rs.next()) {
                    mids.add(rs.getInt(1));
                }
            } catch (SQLException e) {
                LOGGER.log(Level.SEVERE, "sql exception", e);
            } finally {
                Utils.finishSQL(rs, stmt);
            }
        }

        return mids;
    }

    public static List<Integer> getUserBlog(Connection sql, int UID, int privacy, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND message_id<? AND privacy>=" + privacy + " ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, UID);
                stmt.setInt(2, before);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND privacy>=" + privacy + " ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, UID);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getUserTag(Connection sql, int UID, int TID, int privacy, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages_tags INNER JOIN messages USING(message_id) WHERE messages.user_id=? AND messages_tags.tag_id=? AND messages.message_id<? AND messages.privacy>=" + privacy + " ORDER BY messages.message_id DESC LIMIT 20");
                stmt.setInt(1, UID);
                stmt.setInt(2, TID);
                stmt.setInt(3, before);
            } else {
                stmt = sql.prepareStatement("SELECT messages.message_id FROM messages_tags INNER JOIN messages USING(message_id) WHERE messages.user_id=? AND messages_tags.tag_id=? AND messages.privacy>=" + privacy + " ORDER BY messages.message_id DESC LIMIT 20");
                stmt.setInt(1, UID);
                stmt.setInt(2, TID);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getUserRecommendations(Connection sql, int UID, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM favorites WHERE user_id=? AND message_id<? ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, UID);
                stmt.setInt(2, before);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM favorites WHERE user_id=? ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, UID);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getUserPhotos(Connection sql, int UID, int privacy, int before) {
        List<Integer> mids = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND message_id<? AND privacy>=" + privacy + " AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, UID);
                stmt.setInt(2, before);
            } else {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE user_id=? AND privacy>=" + privacy + " AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20");
                stmt.setInt(1, UID);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }
        return mids;
    }

    public static List<Integer> getUserSearch(Connection sql, Connection sqlSearch, int UID, String search, int privacy, int before) {
        List<Integer> mids0 = new ArrayList<>(20);

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            if (before > 0) {
                stmt = sqlSearch.prepareStatement("SELECT id AS message_id FROM messages WHERE user_id=? AND MATCH(?) AND id<? ORDER BY id DESC LIMIT 20");
                stmt.setInt(1, UID);
                stmt.setString(2, search);
                stmt.setInt(3, before);
            } else {
                stmt = sqlSearch.prepareStatement("SELECT id AS message_id FROM messages WHERE user_id=? AND MATCH(?) ORDER BY id DESC LIMIT 20");
                stmt.setInt(1, UID);
                stmt.setString(2, search);
            }
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                mids0.add(rs.getInt(1));
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        List<Integer> mids = new ArrayList<>(20);
        if (mids0.size() > 0) {
            try {
                stmt = sql.prepareStatement("SELECT message_id FROM messages WHERE message_id IN (" + Utils.convertArrayInt2String(mids0) + ") AND privacy>=" + privacy + " ORDER BY message_id DESC");
                rs = stmt.executeQuery();
                rs.beforeFirst();
                while (rs.next()) {
                    mids.add(rs.getInt(1));
                }
            } catch (SQLException e) {
                LOGGER.log(Level.SEVERE, "sql exception", e);
            } finally {
                Utils.finishSQL(rs, stmt);
            }
        }

        return mids;
    }

    public static List<com.juick.Message> getMessages(JdbcTemplate sql, List<Integer> mids) {
        List<com.juick.Message> msgs = new ArrayList<>(20);
        
        return sql.query("SELECT messages.message_id,messages.user_id,users.nick,"
                + "messages_txt.tags,messages.readonly,messages.privacy,messages_txt.txt,"
                + "TIMESTAMPDIFF(MINUTE,messages.ts,NOW()),"
                + "DATE_FORMAT(messages.ts,'%Y-%m-%d %H:%i:%s'),messages.replies,"
                + "messages_txt.repliesby,messages.attach,messages.lat,"
                + "messages.lon,messages.likes "
                + "FROM (messages INNER JOIN messages_txt "
                + "ON messages.message_id=messages_txt.message_id) "
                + "INNER JOIN users ON messages.user_id=users.id "
                + "WHERE messages.message_id "
                + "IN (" + Utils.convertArrayInt2String(mids) + ") "
                + "ORDER BY messages.message_id DESC", (rs, rowNum) -> {
                    com.juick.Message msg = new com.juick.Message();
                    msg.User = new com.juick.User();
                    
                    msg.MID = rs.getInt(1);
                    msg.User.UID = rs.getInt(2);
                    msg.User.UName = rs.getString(3);
                    if (rs.getString(4) != null) {
                        msg.parseTags(rs.getString(4));
                    }
                    msg.ReadOnly = rs.getInt(5) == 1;
                    msg.Privacy = rs.getInt(6);
                    msg.FriendsOnly = msg.Privacy < 0;
                    msg.Text = rs.getString(7);
                    msg.TimeAgo = rs.getInt(8);
                    msg.TimestampString = rs.getString(9);
                    msg.Replies = rs.getInt(10);
                    msg.RepliesBy = rs.getString(11);
                    msg.AttachmentType = rs.getString(12);
                    if (rs.getDouble(13) != 0) {
                        msg.Place = new com.juick.Place();
                        msg.Place.lat = rs.getDouble(13);
                        msg.Place.lon = rs.getDouble(14);
                    }
                    msg.Likes = rs.getInt(15);
                    return msg;
        });
    }

    public static List<com.juick.Message> getReplies(Connection sql, int mid) {
        List<com.juick.Message> replies = new ArrayList<>();

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT replies.reply_id,replies.replyto,replies.user_id,users.nick,users.banned,replies.txt,TIMESTAMPDIFF(MINUTE,replies.ts,NOW()),DATE_FORMAT(replies.ts,'%Y-%m-%d %H:%i:%s'),replies.attach FROM replies INNER JOIN users ON replies.user_id=users.id WHERE replies.message_id=? ORDER BY replies.reply_id ASC");
            stmt.setInt(1, mid);
            rs = stmt.executeQuery();
            rs.beforeFirst();
            while (rs.next()) {
                com.juick.Message msg = new com.juick.Message();
                msg.MID = mid;
                msg.RID = rs.getInt(1);
                msg.ReplyTo = rs.getInt(2);
                msg.User = new com.juick.User();
                msg.User.UID = rs.getInt(3);
                msg.User.UName = rs.getString(4);
                msg.User.Banned = rs.getBoolean(5);
                msg.Text = rs.getString(6);
                msg.TimeAgo = rs.getInt(7);
                msg.TimestampString = rs.getString(8);
                msg.AttachmentType = rs.getString(9);

                replies.add(msg);
            }
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        return replies;
    }

    public static boolean setMessagePopular(Connection sql, int mid, int popular) {
        boolean ret = false;

        PreparedStatement stmt = null;
        try {
            if (popular == -2) {
                stmt = sql.prepareStatement("UPDATE messages SET hidden=1 WHERE message_id=?");
                stmt.setInt(1, mid);
            } else if (popular == -1) {
                stmt = sql.prepareStatement("UPDATE messages SET popular=0 WHERE message_id=?");
                stmt.setInt(1, mid);
            } else {
                stmt = sql.prepareStatement("UPDATE messages SET popular=? WHERE message_id=?");
                stmt.setInt(1, popular);
                stmt.setInt(2, mid);
            }
            ret = stmt.executeUpdate() > 0;
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(null, stmt);
        }

        if (popular == -1) {
            try {
                stmt = sql.prepareStatement("INSERT INTO top_ignore_messages VALUES (?)");
                stmt.setInt(1, mid);
                stmt.executeUpdate();
            } catch (SQLException e) {
                LOGGER.log(Level.SEVERE, "sql exception", e);
            } finally {
                Utils.finishSQL(null, stmt);
            }
        }

        return ret;
    }

    public static boolean setMessagePrivacy(Connection sql, int mid) {
        boolean ret = false;

        PreparedStatement stmt = null;
        try {
            stmt = sql.prepareStatement("UPDATE messages SET privacy=1 WHERE message_id=?");
            stmt.setInt(1, mid);
            ret = stmt.executeUpdate() > 0;
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "sql exception", e);
        } finally {
            Utils.finishSQL(null, stmt);
        }

        return ret;
    }
}