/*
 * 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 com.juick.Message;
import com.juick.Tag;
import com.juick.User;
import com.juick.server.helpers.PrivacyOpts;
import com.juick.server.helpers.TagStats;
import com.juick.util.MessageUtils;
import org.apache.commons.lang3.StringEscapeUtils;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.dao.IncorrectResultSizeDataAccessException;
import org.springframework.jdbc.core.ConnectionCallback;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.support.GeneratedKeyHolder;
import org.springframework.jdbc.support.KeyHolder;
import org.springframework.util.StringUtils;

import java.sql.*;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

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

    public static class MessageMapper implements RowMapper<Message> {
        @Override
        public Message mapRow(ResultSet rs, int rowNum) throws SQLException {
            Message msg = new Message();
            msg.setMid(rs.getInt(1));
            msg.setRid(rs.getInt(2));
            msg.setReplyto(rs.getInt(3));
            User user = new User();
            user.setUid(rs.getInt(4));
            user.setName(rs.getString(5));
            user.setBanned(rs.getBoolean(6));
            msg.setUser(user);
            msg.TimeAgo = rs.getInt(7);
            msg.setDate(rs.getTimestamp(8));
            msg.ReadOnly = rs.getBoolean(9);
            msg.setPrivacy(rs.getInt(10));
            msg.FriendsOnly = msg.getPrivacy() < 0;
            msg.setReplies(rs.getInt(11));
            msg.setAttachmentType(rs.getString(12));
            if (rs.getDouble(13) != 0) {
                msg.Place = new com.juick.Place();
                msg.Place.lat = rs.getDouble(14);
                msg.Place.lon = rs.getDouble(15);
            }
            msg.setLikes(rs.getInt(16));
            msg.Hidden = rs.getBoolean(17);
            // parse tags string
            String tagsStr = rs.getString(18);
            if (tagsStr != null) {
                Arrays.stream(tagsStr.split(" ")).forEach(t -> msg.getTags().add(new Tag(t)));
            }
            msg.setRepliesBy(rs.getString(19));
            msg.setText(rs.getString(20));
            msg.setReplyQuote(MessageUtils.formatQuote(rs.getString(21)));
            return msg;
        }
    }

    public static int createMessage(JdbcTemplate sql, int uid, String txt, String attachment, List<com.juick.Tag> tags) {
        KeyHolder holder = new GeneratedKeyHolder();
        sql.update(con -> {
            PreparedStatement stmt = con.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);
            }
            return stmt;
        }, holder);

        int mid = holder.getKey().intValue();


        if (mid > 0) {

            String tagsNames = org.apache.commons.lang3.StringUtils.EMPTY;
            String tagsIDs = org.apache.commons.lang3.StringUtils.EMPTY;

            for (int i = 0; i < tags.size(); i++) {
                if (i > 0) {
                    tagsNames += " ";
                    tagsIDs += ",";
                }
                tagsNames += tags.get(i).getName();
                tagsIDs += "(" + mid + "," + tags.get(i).TID + ")";
            }
            if (tags.size() > 0) {
                sql.execute("INSERT INTO messages_tags(message_id,tag_id) VALUES " + tagsIDs);
            }
            final String finalTagsNames = tagsNames;
            sql.update(con -> {
                PreparedStatement stmt = con.prepareStatement("INSERT INTO messages_txt(message_id,tags,txt) " +
                        "VALUES (?,?,?)", Statement.NO_GENERATED_KEYS);
                stmt.setInt(1, mid);
                if (finalTagsNames.isEmpty()) {
                    stmt.setNull(2, Types.VARCHAR);
                } else {
                    stmt.setString(2, finalTagsNames);
                }
                stmt.setString(3, txt);
                return stmt;
            });
        }

        return mid;
    }

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

        sql.update( con -> {
            PreparedStatement stmt = con.prepareStatement("INSERT INTO replies(message_id,reply_id,user_id," +
                    "replyto,attach,txt) VALUES (?,?,?,?,?,?)", Statement.NO_GENERATED_KEYS);
            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);
            return stmt;
        });

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

        return ridnew;
    }

    public static int getReplyIDIncrement(JdbcTemplate sql, int mid) {
        return sql.execute((ConnectionCallback<Integer>) conn -> {
            conn.setAutoCommit(false);
            final int replyNo;
            try (PreparedStatement ps = conn.prepareStatement("START TRANSACTION")) {
                ps.executeUpdate();
            }
            try (PreparedStatement ps = conn.prepareStatement("SELECT maxreplyid+1 FROM messages WHERE message_id=? FOR UPDATE")) {
                ps.setInt(1, mid);
                try (ResultSet resultSet = ps.executeQuery()) {
                    if (resultSet.next()) {
                        replyNo = resultSet.getInt(1);
                    } else {
                        throw new IncorrectResultSizeDataAccessException("while getting getReplyIDIncrement, mid=" + mid, 1, 0);
                    }
                }
            }
            try (PreparedStatement ps = conn.prepareStatement("UPDATE messages SET maxreplyid=? WHERE message_id=?")) {
                ps.setInt(1, replyNo);
                ps.setInt(2, mid);
                if (ps.executeUpdate() != 1) {
                    throw new IncorrectResultSizeDataAccessException("Cannot find a message to update: " + mid, 1, 0);
                }
            }
            conn.commit();
            return replyNo;
        });

    }

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

    public static boolean canViewThread(JdbcTemplate sql, int mid, int uid) {
        PrivacyOpts privacyOpts;
        try {
            privacyOpts = sql.queryForObject("SELECT user_id,privacy FROM messages WHERE messages.message_id=?",
                    (rs, rowNum) -> {
                        PrivacyOpts res = new PrivacyOpts();
                        res.setUid(rs.getInt(1));
                        res.setPrivacy(rs.getInt(2));
                        return res;
                    }, mid);
        } catch (EmptyResultDataAccessException e) {
            return true;
        }
        return privacyOpts.getPrivacy() >= 0
                || uid == privacyOpts.getUid()
                || ((privacyOpts.getPrivacy() == -1 || privacyOpts.getPrivacy() == -2) && uid > 0
                && UserQueries.isInWL(sql, privacyOpts.getUid(), uid));
    }

    public static boolean isReadOnly(JdbcTemplate sql, int mid) {
        try {
            return sql.queryForObject("SELECT readonly FROM messages WHERE message_id=?", new Object[]{mid}, Integer.class) == 1;
        } catch (EmptyResultDataAccessException e) {
            return false;
        }
    }

    public static boolean isSubscribed(JdbcTemplate sql, int uid, int mid) {
        try {
            return sql.queryForObject("SELECT 1 FROM subscr_messages WHERE suser_id=? AND message_id=?", new Object[]{uid, mid}, Integer.class) == 1;
        } catch (EmptyResultDataAccessException e) {
            return false;
        }
    }

    public static int getMessagePrivacy(JdbcTemplate sql, int mid) {
        try {
            return sql.queryForObject("SELECT privacy FROM messages WHERE message_id=?", new Object[]{mid}, Integer.class);
        } catch (EmptyResultDataAccessException e) {
            return -4;
        }
    }


    public static com.juick.Message getMessage(JdbcTemplate sql, int mid) {
        try {
            return sql.queryForObject("SELECT messages.message_id, 0 as rid, 0 as replyto, "
                            + "messages.user_id,users.nick, 0 as banned, "
                            + "TIMESTAMPDIFF(MINUTE,messages.ts,NOW()),"
                            + "messages.ts,"
                            + "messages.readonly,messages.privacy,messages.replies,"
                            + "messages.attach,messages.place_id,messages.lat,"
                            + "messages.lon,messages.likes,messages.hidden,"
                            + "txt.tags,txt.repliesby,txt.txt, '' as q FROM messages "
                            + "INNER JOIN users ON messages.user_id=users.id "
                            + "INNER JOIN messages_txt AS txt "
                            + "ON messages.message_id=txt.message_id "
                            + "WHERE messages.message_id=?",
                    new MessageMapper(), mid);
        } catch (EmptyResultDataAccessException e) {
            return null;
        }
    }

    public static com.juick.Message getReply(JdbcTemplate sql, int mid, int rid) {
        try {
            return sql.queryForObject("SELECT replies.user_id,users.nick,"
                            + "replies.replyto,replies.ts,"
                            + "replies.attach,replies.txt, IFNULL(q.txt,t.txt) as quote FROM replies INNER JOIN users "
                            + "ON replies.user_id=users.id "
                            + "LEFT JOIN replies q "
                            + "ON replies.message_id=q.message_id and replies.replyto=q.reply_id "
                            + "LEFT JOIN messages_txt t ON replies.message_id=t.message_id "
                            + "WHERE replies.message_id=? AND replies.reply_id=?",
                    (rs, num) -> {
                        Message msg = new Message();
                        msg.setMid(mid);
                        msg.setRid(rid);
                        msg.setUser(new User());
                        msg.getUser().setUid(rs.getInt(1));
                        msg.getUser().setName(rs.getString(2));
                        msg.setReplyto(rs.getInt(3));
                        msg.setDate(rs.getTimestamp(4));
                        msg.setAttachmentType(rs.getString(5));
                        msg.setText(rs.getString(6));
                        String quote = rs.getString(7);
                        if (!StringUtils.isEmpty(quote)) {
                            msg.setReplyQuote(MessageUtils.formatQuote(quote));
                        }
                        return msg;
                    }, mid, rid);
        } catch (EmptyResultDataAccessException e) {
            return null;
        }
    }

    public static User getMessageAuthor(JdbcTemplate sql, int mid) {
        try {
            return sql.queryForObject("SELECT messages.user_id,users.nick "
                            + "FROM messages INNER JOIN users "
                            + "ON messages.user_id=users.id WHERE messages.message_id=?",
                    new Object[]{mid}, (rs, num) -> {
                        User res = new com.juick.User();
                        res.setUid(rs.getInt(1));
                        res.setName(rs.getString(2));
                        return res;
                    });
        } catch (EmptyResultDataAccessException e) {
            return null;
        }
    }

    public static List<TagStats> getMessageTags(JdbcTemplate sql, int mid) {
        return sql.query("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)",
                (rs, num) -> {
                    com.juick.Tag t = new com.juick.Tag(StringEscapeUtils.unescapeHtml4(rs.getString(3)));
                    t.TID = rs.getInt(1);
                    t.SynonymID = rs.getInt(2);
                    TagStats s = new TagStats();
                    s.setTag(t);
                    s.setUsageCount(rs.getInt(4));
                    return s;
                }, mid);
    }

    public static List<Integer> getMessageTagsIDs(JdbcTemplate sql, int mid) {
        return sql.queryForList("SELECT tag_id FROM messages_tags WHERE message_id=?", new Object[] {mid}, Integer.class);
    }

    public static List<String> getMessageRecommendations(JdbcTemplate sql, int mid) {
        return sql.queryForList("SELECT users.nick FROM favorites INNER JOIN users " +
                "ON (favorites.message_id=? AND favorites.user_id=users.id)",
                new Object[] {mid}, String.class);
    }

    public static List<Integer> getAll(JdbcTemplate sql, int visitor_uid, int before) {
        if (visitor_uid > 1) {
            if (before > 0) {
                return sql.queryForList("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",
                        new Object[]{before, visitor_uid, visitor_uid}, Integer.class);
            } else {
                return sql.queryForList("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",
                        new Object[]{visitor_uid, visitor_uid}, Integer.class);
            }
        } else {
            if (before > 0) {
                return sql.queryForList("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",
                        new Object[]{before}, Integer.class);
            } else {
                return sql.queryForList("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",
                        Integer.class);
            }
        }
    }

    public static List<Integer> getTag(JdbcTemplate sql, int tid, int visitor_uid, int before, int cnt) {
        if (before > 0) {
            return sql.queryForList("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 ?",
                    new Object[]{tid, tid, before, visitor_uid, cnt}, Integer.class);
        } else {
            return sql.queryForList("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 ?",
                    new Object[]{tid, tid, visitor_uid, cnt}, Integer.class);
        }
    }

    public static List<Integer> getTags(JdbcTemplate sql, String tids, int visitor_uid, int before, int cnt) {
        if (before > 0) {
            return sql.queryForList("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 ?", new Object[]{before, visitor_uid, cnt}, Integer.class);
        } else {
            return sql.queryForList("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 ?", new Object[]{visitor_uid, cnt}, Integer.class);
        }
    }

    public static List<Integer> getPlace(JdbcTemplate sql, int place_id, int visitor_uid, int before) {
        if (before > 0) {
            return sql.queryForList("SELECT message_id FROM messages WHERE place_id=? AND message_id<? " +
                            "AND (privacy>0 OR user_id=?) ORDER BY message_id DESC LIMIT 20",
                    new Object[]{place_id, before, visitor_uid}, Integer.class);
        } else {
            return sql.queryForList("SELECT message_id FROM messages WHERE place_id=? AND (privacy>0 OR user_id=?) " +
                    "ORDER BY message_id DESC LIMIT 20", new Object[]{place_id, visitor_uid}, Integer.class);
        }
    }

    public static List<Integer> getMyFeed(JdbcTemplate sql, int uid, int before) {
        List<Integer> mids;
        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, 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, 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,
                    uid, before));
        } else {
            mids.addAll(sql.queryForList("SELECT message_id FROM messages " +
                            "WHERE user_id=? ORDER BY message_id DESC LIMIT 20", Integer.class, 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(JdbcTemplate sql, int uid, int before) {

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

    public static List<Integer> getDiscussions(JdbcTemplate sql, int uid, int before) {
        if (before > 0) {
            return sql.queryForList("SELECT message_id FROM subscr_messages WHERE suser_id=? AND message_id<? " +
                    "ORDER BY message_id DESC LIMIT 20", Integer.class, uid, before);
        } else {
            return sql.queryForList("SELECT message_id FROM subscr_messages WHERE suser_id=? " +
                    "ORDER BY message_id DESC LIMIT 20", Integer.class, uid);
        }
    }

    public static List<Integer> getRecommended(JdbcTemplate sql, int uid, int before) {
        if (before > 0) {
            return sql.queryForList("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", Integer.class, uid, before);
        } else {
            return sql.queryForList("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", Integer.class, uid);
        }
    }

    public static List<Integer> getPopular(JdbcTemplate sql, int visitor_uid, int before) {

            if (before > 0) {
                return sql.queryForList("SELECT message_id FROM messages WHERE message_id<? AND privacy>0 " +
                        "AND popular>0 AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
                        "ORDER BY message_id DESC LIMIT 20", Integer.class, before, visitor_uid);
            } else {
                return sql.queryForList("SELECT message_id FROM messages WHERE privacy>0 " +
                        "AND popular>0 AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
                        "ORDER BY message_id DESC LIMIT 20", Integer.class, visitor_uid);
            }
    }

    public static List<Integer> getPhotos(JdbcTemplate sql, int visitor_uid, int before) {
        if (before > 0) {
            return sql.queryForList("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) " +
                    "AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
                    "ORDER BY message_id DESC LIMIT 20", Integer.class, before, visitor_uid, visitor_uid);
        } else {
            return sql.queryForList("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) " +
                    "AND user_id NOT IN (SELECT bl_user_id FROM bl_users WHERE user_id=?) " +
                    "ORDER BY message_id DESC LIMIT 20", Integer.class, visitor_uid, visitor_uid);
        }
    }

    public static List<Integer> getSearch(JdbcTemplate sql, JdbcTemplate sqlSearch, String search, int before) {
        List<Integer> mids;

        if (before > 0) {
            mids = sqlSearch.queryForList("SELECT id AS message_id FROM messages WHERE MATCH(?) AND id<? " +
                    "ORDER BY id DESC LIMIT 25", Integer.class, search, before);
        } else {
            mids = sqlSearch.queryForList("SELECT id AS message_id FROM messages WHERE MATCH(?) " +
                    "ORDER BY id DESC LIMIT 25", Integer.class, search);
        }
        if (mids.size() > 0) {
            return sql.queryForList("SELECT message_id FROM messages WHERE message_id " +
                    "IN (" + StringUtils.arrayToCommaDelimitedString(mids.toArray()) + ") AND privacy>0 ORDER BY message_id DESC LIMIT 20",
                    Integer.class);
        }
        return mids;
    }

    public static List<Integer> getUserBlog(JdbcTemplate sql, int UID, int privacy, int before) {
        if (before > 0) {
            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND message_id<? AND privacy>=" +
                    privacy + " ORDER BY message_id DESC LIMIT 20", Integer.class, UID, before);
        } else {
            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND privacy>=" + privacy +
                    " ORDER BY message_id DESC LIMIT 20", Integer.class, UID);
        }
    }

    public static List<Integer> getUserTag(JdbcTemplate sql, int UID, int TID, int privacy, int before) {
        if (before > 0) {
            return sql.queryForList("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",
                    Integer.class, UID, TID, before);
        } else {
            return sql.queryForList("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",
                    Integer.class, UID, TID);
        }
    }

    public static List<Integer> getUserRecommendations(JdbcTemplate sql, int UID, int before) {
        if (before > 0) {
            return sql.queryForList("SELECT message_id FROM favorites "
                    + "WHERE user_id=? AND message_id<? "
                    + "ORDER BY message_id DESC LIMIT 20", Integer.class,
                    UID, before);
        } else {
            return sql.queryForList("SELECT message_id FROM favorites "
                    + "WHERE user_id=? ORDER BY message_id DESC LIMIT 20",
                    Integer.class, UID);
        }
    }

    public static List<Integer> getUserPhotos(JdbcTemplate sql, int UID, int privacy, int before) {
        if (before > 0) {
            return sql.queryForList("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",
                    new Object[] {UID, before}, Integer.class);
        } else {
            return sql.queryForList("SELECT message_id FROM messages WHERE user_id=? AND privacy>=" + privacy +
                    " AND attach IS NOT NULL ORDER BY message_id DESC LIMIT 20",
                    new Object[] {UID}, Integer.class);
        }
    }

    public static List<Integer> getUserSearch(JdbcTemplate sql, JdbcTemplate sqlSearch, int UID, String search, int privacy, int before) {
        List<Integer> mids;


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

        if (mids.size() > 0) {
           return sql.queryForList("SELECT message_id FROM messages WHERE message_id IN (" +
                           StringUtils.arrayToCommaDelimitedString(mids.toArray()) + ") AND privacy>=" + privacy + " ORDER BY message_id DESC",
                   Integer.class);
        }
        return mids;
    }

    public static List<com.juick.Message> getMessages(JdbcTemplate sql, List<Integer> mids) {
        if (!mids.isEmpty()) {
            return sql.query("SELECT messages.message_id, 0 as rid, 0 as replyto, "
                    + "messages.user_id,users.nick, 0 as banned, "
                    + "TIMESTAMPDIFF(MINUTE,messages.ts,NOW()),"
                    + "messages.ts,"
                    + "messages.readonly,messages.privacy,messages.replies,"
                    + "messages.attach,messages.place_id,messages.lat,"
                    + "messages.lon,messages.likes,messages.hidden,"
                    + "messages_txt.tags,messages_txt.repliesby, messages_txt.txt, '' as q "
                    + "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 (" + StringUtils.arrayToCommaDelimitedString(mids.toArray()) + ") "
                    + "ORDER BY messages.message_id DESC", new MessageMapper());
        }
        return Collections.emptyList();
    }

    public static List<com.juick.Message> getReplies(JdbcTemplate sql, int mid) {
        return sql.query("SELECT ? as mid, replies.reply_id,replies.replyto, " +
                        "replies.user_id,users.nick,users.banned, " +
                        "TIMESTAMPDIFF(MINUTE,replies.ts,NOW()),replies.ts," +
                        "0 as readonly, 0 as privacy, 0 as replies," +
                        "replies.attach, 0 as place_id, 0 as lat," +
                        "0 as lon, 0 as likes, 0 as hidden," +
                        "NULL as tags,NULL as repliesby, replies.txt, " +
                        "IFNULL(qw.txt, t.txt) as q " +
                        "FROM replies INNER JOIN users " +
                        "ON replies.user_id=users.id " +
                        "LEFT JOIN replies qw ON replies.message_id=qw.message_id and replies.replyto=qw.reply_id " +
                        "LEFT JOIN messages_txt t on replies.message_id=t.message_id " +
                        "WHERE replies.message_id=? " +
                        "ORDER BY replies.reply_id ASC",
                new MessageMapper(), mid, mid);
    }

    public static boolean setMessagePopular(JdbcTemplate sql, int mid, int popular) {
        boolean ret;
        switch (popular) {
            case -2:
                ret = sql.update("UPDATE messages SET hidden=1 WHERE message_id=?", mid) > 0;
                break;
            case -1:
                ret = sql.update("UPDATE messages SET popular=0 WHERE message_id=?", mid) > 0;
                break;
            default:
                ret = sql.update("UPDATE messages SET popular=? WHERE message_id=?", popular, mid) > 0;
                break;
        }
        if (popular == -1) {
            ret = sql.update("INSERT INTO top_ignore_messages VALUES (?)", mid) > 0;
        }
        return ret;
    }

    public static boolean setMessagePrivacy(JdbcTemplate sql, int mid) {
        return sql.update("UPDATE messages SET privacy=1 WHERE message_id=?", 
                mid) > 0;            
    }
    public static boolean deleteMessage(JdbcTemplate sql, int uid, int mid) {
        if (sql.update("DELETE FROM messages WHERE message_id=? AND user_id=?", mid, uid) > 0) {
            sql.update("DELETE FROM messages_txt WHERE message_id=?", mid);
            sql.update("DELETE FROM replies WHERE message_id=?", mid);
            sql.update("DELETE FROM subscr_messages WHERE message_id=?", mid);
            sql.update("DELETE FROM messages_tags WHERE message_id=?", mid);
            return true;
        }
        return false;
    }
}