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path: root/src/main/java/com/juick/service/UserServiceImpl.java
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/*
 * Copyright (C) 2008-2020, Juick
 *
 * 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.service;

import com.juick.model.*;
import com.juick.util.UsernameTakenException;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.RandomStringUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.tuple.Pair;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.dao.EmptyResultDataAccessException;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.support.GeneratedKeyHolder;
import org.springframework.jdbc.support.KeyHolder;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Nonnull;
import java.net.URI;
import java.sql.*;
import java.time.Instant;
import java.time.ZoneOffset;
import java.util.*;

/**
 * Created by aalexeev on 11/13/16.
 */
@Repository
public class UserServiceImpl extends BaseJdbcService implements UserService {

    private static final Logger logger = LoggerFactory.getLogger("UserService");

    @Value("${juick.admin_users:}")
    List<String> adminUsers;

    private class UserMapper implements RowMapper<User> {
        @Override
        public User mapRow(@Nonnull ResultSet rs, int rowNum) throws SQLException {
            User user = new User();

            user.setUid(rs.getInt(1));
            user.setName(rs.getString(2));
            user.setCredentials(rs.getString(3));
            user.setBanned(rs.getInt(4) > 0);
            Timestamp seen = rs.getTimestamp(5);
            if (seen != null) {
                user.setSeen(seen.toInstant());
            }
            user.setVerified(rs.getLong(6) > 0);
            return user;
        }
    }

    @Transactional
    @Override
    public String getSignUpHashByJID(final String jid) {
        List<String> list = getJdbcTemplate().queryForList(
                "SELECT loginhash FROM jids WHERE jid = ? AND user_id IS NULL", String.class, jid);

        if (list.isEmpty()) {
            String hash = UUID.randomUUID().toString();
            getJdbcTemplate().update("INSERT INTO jids(jid, loginhash) VALUES (?, ?)", jid, hash);
            return hash;
        }
        return list.get(0);
    }

    @Transactional
    @Override
    public String getSignUpHashByTelegramID(final Long telegramId, final String username) {
        List<String> list = getJdbcTemplate().queryForList(
                "SELECT loginhash FROM telegram WHERE tg_id = ? AND user_id IS NULL",
                String.class,
                telegramId);

        if (list.isEmpty()) {
            String hash = UUID.randomUUID().toString();
            getJdbcTemplate().update(
                    "INSERT INTO telegram(tg_id, loginhash, tg_name) VALUES (?, ?, ?)", telegramId, hash, username);
            return hash;
        }
        return list.get(0);
    }

    @Transactional
    @Override
    public Optional<User> createUser(final String username, final String password) throws UsernameTakenException {
        KeyHolder holder = new GeneratedKeyHolder();
        try {
            getJdbcTemplate().update(
                    con -> {
                        PreparedStatement stmt = con.prepareStatement(
                                "INSERT INTO users(nick,passw) VALUES (?,?)",
                                Statement.RETURN_GENERATED_KEYS);
                        stmt.setString(1, username);
                        stmt.setString(2, password);
                        return stmt;
                    },
                    holder);
        } catch (DataIntegrityViolationException e) {
            throw new UsernameTakenException();
        }

        int uid = holder.getKeys().size() > 1 ? ((Number)holder.getKeys().get("id")).intValue() : holder.getKey().intValue();

        getJdbcTemplate().update("INSERT INTO useroptions(user_id) VALUES (?)", uid);
        getJdbcTemplate().update("INSERT INTO subscr_users(user_id, suser_id) VALUES (2, ?)", uid);

        return getUserByUID(uid);
    }

    @Transactional(readOnly = true)
    @Override
    public Optional<User> getUserByUID(final int uid) {
        List<User> list = getJdbcTemplate().query(
                "SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen, " +
                        "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                        "FROM users u LEFT JOIN facebook f ON f.user_id = u.id " +
                        "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                        "LEFT JOIN emails e ON e.user_id = u.id WHERE u.id = ?", new UserMapper(), uid);

        return list.isEmpty() ? Optional.empty() : Optional.of(list.get(0));
    }

    @Transactional(readOnly = true)
    @Nonnull
    @Override
    public User getUserByName(final String username) {
        if (StringUtils.isNotBlank(username)) {
            List<User> list = getJdbcTemplate().query(
                    "SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen, " +
                            "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                            "FROM users u LEFT JOIN facebook f ON f.user_id = u.id " +
                            "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                            "LEFT JOIN emails e ON e.user_id = u.id " +
                            "WHERE u.nick = ?", new UserMapper(), username);

            if (!list.isEmpty())
                return list.get(0);
        }
        return AnonymousUser.INSTANCE;
    }

    @Transactional(readOnly = true)
    @Override
    public List<String> getUsernames() {
        return getJdbcTemplate().queryForList("SELECT nick FROM users", String.class);
    }

    @Override
    @Transactional(readOnly = true)
    @Nonnull
    public User getUserByEmail(String email) {
        if (StringUtils.isNotBlank(email)) {
            try {
                List<User> list = getJdbcTemplate().query(
                        "SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen, " +
                                "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                                "FROM users u LEFT JOIN facebook f ON f.user_id = u.id " +
                                "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                                "LEFT JOIN emails e ON e.user_id = u.id " +
                                "WHERE u.id = (SELECT DISTINCT user_id FROM emails WHERE email = ?)",
                        new UserMapper(),
                        email);

                if (!list.isEmpty())
                    return list.get(0);
            } catch (DataIntegrityViolationException e) {
                logger.warn("Data exception with email {}", email);
                return AnonymousUser.INSTANCE;
            }
        }
        return AnonymousUser.INSTANCE;
    }

    @Transactional(readOnly = true)
    @Override
    public User getUserByJID(final String jid) {
        User result = null;

        if (StringUtils.isNotBlank(jid)) {
            List<User> list = getJdbcTemplate().query(
                    "SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen," +
                            "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                            "FROM users u LEFT JOIN facebook f ON f.user_id = u.id " +
                            "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                            "LEFT JOIN emails e ON e.user_id = u.id " +
                            "WHERE u.id = (SELECT user_id FROM jids WHERE jid = ?)",
                    new UserMapper(),
                    jid);

            if (!list.isEmpty())
                result = list.get(0);
        }
        return result;
    }

    @Transactional(readOnly = true)
    @Override
    public List<User> getUsersByName(final Collection<String> unames) {
        if (CollectionUtils.isEmpty(unames))
            return Collections.emptyList();

        return getNamedParameterJdbcTemplate().query(
                "SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen," +
                        "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                        "FROM users u LEFT JOIN facebook f ON f.user_id = u.id " +
                        "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                        "LEFT JOIN emails e ON e.user_id = u.id " +
                        "WHERE u.nick IN (:unames)",
                new MapSqlParameterSource("unames", unames),
                new UserMapper());
    }

    @Transactional(readOnly = true)
    @Override
    public List<User> getUsersByID(final Collection<Integer> uids) {
        if (CollectionUtils.isEmpty(uids))
            return Collections.emptyList();

        return getNamedParameterJdbcTemplate().query(
                "SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen," +
                        "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                        "FROM users u LEFT JOIN facebook f ON f.user_id = u.id " +
                        "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                        "LEFT JOIN emails e ON e.user_id = u.id " +
                        "WHERE u.id IN (:ids)",
                new MapSqlParameterSource("ids", uids),
                new UserMapper());
    }

    @Transactional(readOnly = true)
    @Override
    public List<String> getJIDsbyUID(final int uid) {
        return getJdbcTemplate().queryForList("SELECT jid FROM jids WHERE user_id = ? AND active = 1", String.class, uid);
    }

    @Transactional(readOnly = true)
    @Override
    public int getUIDbyName(final String uname) {
        if (StringUtils.isNotBlank(uname)) {
            List<Integer> list = getJdbcTemplate().queryForList(
                    "SELECT id FROM users WHERE nick = ?", Integer.class, uname);

            if (!list.isEmpty())
                return list.get(0);
        }
        return 0;
    }

    @Transactional(readOnly = true)
    @Override
    public User getUserByHash(final String hash) {
        if (StringUtils.isNotBlank(hash)) {
            List<User> list = getJdbcTemplate().query(
                    "SELECT DISTINCT logins.user_id, u.nick, u.passw, u.banned, u.last_seen," +
                            "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                            "FROM logins INNER JOIN users u ON logins.user_id = u.id " +
                            "LEFT JOIN facebook f ON f.user_id = u.id " +
                            "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                            "LEFT JOIN emails e ON e.user_id = u.id " +
                            "WHERE logins.hash = ?",
                    new UserMapper(),
                    hash);

            if (!list.isEmpty()) {
                User user = list.get(0);
                user.setAuthHash(hash);
                return user;
            }
        }
        return AnonymousUser.INSTANCE;
    }

    @Transactional
    @Override
    public String getHashByUID(final int uid) {
        List<String> list = getJdbcTemplate().queryForList(
                "SELECT hash FROM logins WHERE user_id = ?", String.class, uid);

        if (list.isEmpty()) {
            String hash = RandomStringUtils.randomAlphanumeric(16).toUpperCase();
            getJdbcTemplate().update("INSERT INTO logins(user_id, hash) VALUES (?, ?)", uid, hash);
            return hash;
        }
        return list.get(0);
    }

    @Transactional(readOnly = true)
    @Override
    public Optional<User> checkPassword(final String username, final String password) {
        if (StringUtils.isNotBlank(username)) {
            List<User> list = getJdbcTemplate().query(
                    "SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen," +
                            "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                            "FROM users u LEFT JOIN facebook f ON f.user_id = u.id " +
                            "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                            "LEFT JOIN emails e ON e.user_id = u.id " +
                            "WHERE nick = ?",
                    new UserMapper(),
                    username);

            if (!list.isEmpty()) {
                User user = list.get(0);
                if (Objects.equals(password, user.getCredentials()))
                    return Optional.of(user);
            }
        }
        return Optional.empty();
    }

    @Transactional
    @Override
    public boolean updatePassword(final User user, final String newPassword) {
        return user != null &&
                user.getUid() > 0 &&
                getJdbcTemplate().update("UPDATE users SET passw = ? WHERE id = ?", newPassword, user.getUid()) > 0;
    }

    @Transactional(readOnly = true)
    @Override
    public int getUserOptionInt(final int uid, final String option, final int defaultValue) {
        if (StringUtils.isBlank(option))
            return defaultValue;

        List<Integer> list = getJdbcTemplate().queryForList(
                "SELECT " + option + " FROM useroptions WHERE user_id = ?", Integer.class, uid);

        return list.isEmpty() ? defaultValue : list.get(0);
    }

    @Transactional
    @Override
    public int setUserOptionInt(final int uid, final String option, final int value) {
        if (StringUtils.isBlank(option))
            return 0;

        return getJdbcTemplate().update("UPDATE useroptions SET " + option + "= ? WHERE user_id = ?", value, uid);
    }

    @Transactional(readOnly = true)
    @Override
    public User getUserInfo(final User user) {
        try {
            getJdbcTemplate().queryForObject(
                    "SELECT fullname, country, url, descr FROM usersinfo WHERE user_id = ?",
                    ((rs, rowNum) -> {
                        user.setFullName(rs.getString(1));
                        user.setCountry(rs.getString(2));
                        user.setUrl(rs.getString(3));
                        user.setDescription(rs.getString(4));
                        return user;
                    }),
                    user.getUid());
        } catch (EmptyResultDataAccessException e) {
            return user;
        }
        return user;
    }

    @Override
    public boolean updateUserInfo(final User info) {
        try {
            return getJdbcTemplate().update(
                    "INSERT INTO usersinfo(user_id, fullname, country, url, descr) VALUES (?, ?, ?, ?, ?)",
                    info.getUid(),
                    info.getFullName(),
                    info.getCountry(),
                    info.getUrl(),
                    info.getDescription()) > 0;
        } catch (Exception e) {
            // pgjdbc 42.x do not use SQLException
            return getJdbcTemplate().update("UPDATE usersinfo SET fullname = ?, country = ?, url = ?, descr = ? WHERE user_id = ?",
                    info.getFullName(),
                    info.getCountry(),
                    info.getUrl(),
                    info.getDescription(),
                    info.getUid()) > 0;
        }
    }

    @Transactional(readOnly = true)
    @Override
    public boolean getCanMedia(final int uid) {
        List<Integer> list = getJdbcTemplate().queryForList(
                "SELECT users.lastphoto - UNIX_TIMESTAMP() FROM users WHERE id = ?",
                Integer.class,
                uid);

        return !list.isEmpty() && list.get(0) < 3600;
    }

    @Transactional(readOnly = true)
    @Override
    public boolean isInWL(final int uid, final int check) {
        List<Integer> list = getJdbcTemplate().queryForList(
                "SELECT 1 FROM wl_users WHERE user_id = ? AND wl_user_id = ?",
                Integer.class, uid, check);

        return !list.isEmpty() && list.get(0) == 1;
    }

    @Transactional(readOnly = true)
    @Override
    public boolean isInBL(final int uid, final int check) {
        List<Integer> list = getJdbcTemplate().queryForList(
                "SELECT 1 FROM bl_users WHERE user_id = ? AND bl_user_id = ?", Integer.class, uid, check);

        return !list.isEmpty() && list.get(0) == 1;
    }

    @Transactional(readOnly = true)
    @Override
    public boolean isInBLAny(final int uid, final int uid2) {
        List<Integer> list = getJdbcTemplate().queryForList(
                "SELECT 1 FROM bl_users WHERE (user_id = ? AND bl_user_id = ?) "
                        + "OR (user_id = ? AND bl_user_id = ?)",
                        Integer.class, uid, uid2, uid2, uid);
        return !list.isEmpty() && list.get(0) == 1;
    }

    @Transactional(readOnly = true)
    @Override
    public boolean isReplyToBL(final User user, final Message reply) {
        return getNamedParameterJdbcTemplate().queryForObject("WITH RECURSIVE banned(reply_id, user_id) AS (" +
                        "SELECT reply_id, user_id FROM replies " +
                        "WHERE replies.message_id = :mid " +
                        "AND EXISTS (SELECT 1 FROM bl_users b WHERE b.user_id = :uid AND b.bl_user_id = replies.user_id) " +
                        "UNION ALL SELECT replies.reply_id, replies.user_id FROM replies " +
                        "INNER JOIN banned ON banned.reply_id = replies.replyto " +
                        "WHERE replies.message_id = :mid) " +
                        "SELECT COUNT(reply_id) from replies " +
                        "INNER JOIN messages m ON m.message_id = replies.message_id " +
                        "WHERE replies.message_id = :mid " +
                        "AND replies.reply_id = :rid " +
                        "AND (EXISTS (SELECT 1 FROM banned WHERE banned.reply_id = replies.reply_id) " +
                        "OR EXISTS (SELECT 1 FROM bl_users b WHERE b.user_id = :uid AND b.bl_user_id = m.user_id)" +
                        "OR EXISTS (SELECT 1 FROM bl_users b WHERE b.bl_user_id = :uid AND b.user_id = m.user_id))",
                new MapSqlParameterSource("uid", user.getUid())
                        .addValue("mid", reply.getMid())
                        .addValue("rid", reply.getRid()),
                Integer.class) > 0;
    }

    @Transactional(readOnly = true)
    @Override
    public List<Integer> checkBL(final int visitor, final Collection<Integer> uids) {
        if (CollectionUtils.isEmpty(uids))
            return Collections.emptyList();

        return getNamedParameterJdbcTemplate().queryForList(
                "SELECT user_id FROM bl_users WHERE user_id = :visitor and bl_user_id IN (:ids)",
                new MapSqlParameterSource()
                        .addValue("visitor", visitor)
                        .addValue("ids", uids),
                Integer.class);
    }

    @Transactional(readOnly = true)
    @Override
    public boolean isSubscribed(final int uid, final int check) {
        List<Integer> list = getJdbcTemplate().queryForList(
                "SELECT 1 FROM subscr_users WHERE suser_id = ? AND user_id = ?",
                Integer.class, uid, check);

        return !list.isEmpty() && list.get(0) == 1;
    }

    @Transactional(readOnly = true)
    @Override
    public List<User> getUserReadLeastPopular(final int uid, final int cnt) {
        return getJdbcTemplate().query(
                "SELECT users.id,users.nick FROM (subscr_users " +
                        "INNER JOIN users_subscr ON (subscr_users.suser_id=? " +
                        "AND subscr_users.user_id=users_subscr.user_id)) INNER JOIN users " +
                        "ON subscr_users.user_id=users.id ORDER BY cnt LIMIT ?",
                (rs, num) -> {
                    User u = new User();
                    u.setUid(rs.getInt(1));
                    u.setName(rs.getString(2));
                    return u;
                },
                uid,
                cnt);
    }

    @Transactional(readOnly = true)
    @Override
    public List<User> getUserReaders(final int uid) {
        return getNamedParameterJdbcTemplate().query(
                """
                        SELECT users.id, users.nick nick, '' user_uri FROM subscr_users
                        INNER JOIN users ON subscr_users.suser_id=users.id
                        WHERE subscr_users.user_id=:user_id
                        UNION ALL SELECT 0, '', acct user_uri from followers WHERE user_id=:user_id
                        ORDER BY nick
                        """,
                new MapSqlParameterSource()
                        .addValue("user_id", uid),
                (rs, num) -> {
                    User u = new User();
                    u.setUid(rs.getInt(1));
                    u.setName(rs.getString(2));
                    u.setUri(URI.create(rs.getString(3)));
                    return u;
                });
    }

    @Transactional(readOnly = true)
    @Override
    public List<User> getUserFriends(final int uid) {
        return getJdbcTemplate().query(
                "SELECT users.id,users.nick FROM subscr_users " +
                        "INNER JOIN users ON subscr_users.user_id=users.id " +
                        "WHERE subscr_users.suser_id=? AND users.id!=? " +
                        "ORDER BY users.nick",
                (rs, num) -> {
                    User u = new User();
                    u.setUid(rs.getInt(1));
                    u.setName(rs.getString(2));
                    return u;
                },
                uid,
                uid);
    }

    @Transactional(readOnly = true)
    @Override
    public Integer getUserRecommendations(User user) {
        try {
            return jdbcTemplate.queryForObject("SELECT COUNT(*) FROM favorites WHERE user_id=?", Integer.class, user.getUid());
        } catch (EmptyResultDataAccessException e) {
            return 0;
        }
    }

    @Transactional(readOnly = true)
    @Override
    public List<User> getUserBLUsers(final int uid) {
        return getJdbcTemplate().query("SELECT users.id,users.nick FROM users INNER JOIN bl_users " +
                        "ON(bl_users.bl_user_id=users.id) WHERE bl_users.user_id=? ORDER BY users.nick",
                (rs, num) -> {
                    User u = new User();
                    u.setUid(rs.getInt(1));
                    u.setName(rs.getString(2));
                    return u;
                }, uid);
    }

    @Transactional
    @Override
    public boolean linkTwitterAccount(
            final User user, final String accessToken, final String accessTokenSecret, final String screenName) {
        return getJdbcTemplate().update("INSERT INTO twitter(user_id,access_token,access_token_secret,uname) " +
                        "VALUES (?,?,?,?)",
                user.getUid(), accessToken, accessTokenSecret, screenName) > 0;
    }

    @Transactional(readOnly = true)
    @Override
    public int getStatsMessages(final int uid) {
        List<Integer> list = getJdbcTemplate().queryForList("SELECT COUNT(*) FROM messages WHERE user_id = ?", Integer.class, uid);
        return list.isEmpty() ? 0 : list.get(0);
    }

    @Transactional(readOnly = true)
    @Override
    public int getStatsReplies(final int uid) {
        List<Integer> list = getJdbcTemplate().queryForList("SELECT COUNT(*) FROM replies WHERE user_id = ?", Integer.class, uid);
        return list.isEmpty() ? 0 : list.get(0);
    }

    @Transactional
    @Override
    public boolean setActiveStatusForJID(final String JID, final UserService.ActiveStatus jidStatus) {
        User user = getUserByJID(JID);
        if (user != null) {
            int newStatus = jidStatus == UserService.ActiveStatus.Active ? 1 : 0;
            return getJdbcTemplate().update(
                    "UPDATE jids SET active = ? WHERE user_id = ? AND jid = ?",
                    newStatus, user.getUid(), JID) >= 0;
        }
        return false;
    }

    @Transactional(readOnly = true)
    @Override
    public List<String> getAllJIDs(final User user) {
        return getJdbcTemplate().queryForList(
                "SELECT jid FROM jids WHERE user_id=?", String.class, user.getUid());
    }

    @Transactional(readOnly = true)
    @Override
    public List<AuthResponse> getAuthCodes(final User user) {
        return getJdbcTemplate().query(
                "SELECT account,authcode FROM auth WHERE user_id=? AND protocol='xmpp'",
                (rs, num) -> new AuthResponse(null, rs.getString(1), rs.getString(2)),
                user.getUid());
    }

    @Transactional(readOnly = true)
    @Override
    public List<String> getEmails(final User user) {
        return getJdbcTemplate().queryForList("SELECT email FROM emails WHERE user_id=?", String.class, user.getUid());
    }

    @Transactional(readOnly = true)
    @Override
    public String getEmailHash(final User user) {
        List<String> list = getJdbcTemplate().queryForList(
                "SELECT hash FROM mail WHERE user_id = ?",
                String.class,
                user.getUid());
        return list.isEmpty() ? StringUtils.EMPTY : list.get(0) + "@mail.juick.com";
    }

    @Transactional
    @Override
    public boolean deleteJID(int uid, String jid) {
        return getNamedParameterJdbcTemplate().update("DELETE FROM jids " +
                        "WHERE (SELECT COUNT(*) cnt FROM (select user_id, jid FROM jids j) c WHERE user_id=:uid) > 1 " +
                        "AND user_id=:uid AND jid=:jid",
                new MapSqlParameterSource()
                        .addValue("uid", uid)
                        .addValue("jid", jid)) > 0;
    }

    @Transactional
    @Override
    public boolean unauthJID(int uid, String jid) {
        return getJdbcTemplate()
                .update("DELETE FROM auth WHERE user_id=? AND protocol='xmpp' AND account=?", uid, jid) > 0;
    }

    @Transactional(readOnly = true)
    @Override
    public List<String> getActiveJIDs() {
        return getJdbcTemplate().queryForList("SELECT jid FROM jids WHERE active=1 AND loginhash IS NULL", String.class);
    }

    @Override
    public void updateLastSeen(User user) {
        getJdbcTemplate().update("UPDATE users SET last_seen=? WHERE id=?", Instant.now().atOffset(ZoneOffset.UTC), user.getUid());
    }

    @Override
    public boolean isAdminUser(User user) {
        return adminUsers.contains(user.getName());
    }

    @Transactional(readOnly = true)
    @Override
    public Optional<ExternalToken> getTwitterToken(final int uid) {
        List<ExternalToken> list = getJdbcTemplate().query(
                "SELECT uname, access_token, access_token_secret FROM twitter WHERE user_id = ? AND crosspost = true",
                (rs, num) -> new ExternalToken(rs.getString(1), "twitter",
                        rs.getString(2), rs.getString(3)),
                uid);

        return list.isEmpty() ?
                Optional.empty() : Optional.of(list.get(0));
    }

    @Transactional
    @Override
    public boolean deleteTwitterToken(Integer uid) {
        return getJdbcTemplate().update("DELETE FROM twitter WHERE user_id=?", uid) > 0;
    }

    @Override
    public void addFacebookState(String state, String redirectUri) {
        jdbcTemplate.update("INSERT INTO facebook(loginhash, fb_link) VALUES(?, ?)", state, redirectUri);
    }

    @Override
    public void addVKState(String state, String redirectUri) {
        jdbcTemplate.update("INSERT INTO vk(loginhash, vk_link) VALUES(?, ?)", state, redirectUri);
    }

    @Override
    public String verifyFacebookState(String state) {
        try {
            return jdbcTemplate.queryForObject("SELECT fb_link FROM facebook WHERE loginhash=?",
                    String.class, state);
        } catch (EmptyResultDataAccessException e) {
            return StringUtils.EMPTY;
        }
    }

    @Override
    public String verifyVKState(String state) {
        try {
            return jdbcTemplate.queryForObject("SELECT vk_link FROM vk WHERE loginhash=?",
                    String.class, state);
        } catch (EmptyResultDataAccessException e) {
            return StringUtils.EMPTY;
        }
    }

    @Transactional(readOnly = true)
    @Override
    public Optional<Pair<String, String>> getFacebookTokens(final int uid) {
        List<Optional<Pair<String, String>>> list = getJdbcTemplate().query(
                "SELECT fb_id, access_token FROM facebook WHERE user_id = ? AND access_token IS NOT NULL AND crosspost = true",
                (rs, num) -> Optional.of(Pair.of(rs.getString(1), rs.getString(2))),
                uid);
        return list.isEmpty() ?
                Optional.empty() : list.get(0);
    }

    @Transactional(readOnly = true)
    @Override
    public ApplicationStatus getFbCrossPostStatus(final int uid) {
        List<ApplicationStatus> list = getJdbcTemplate().query(
                "SELECT 1, crosspost FROM facebook WHERE user_id = ? LIMIT 1",
                (rs, num) -> {
                    ApplicationStatus status = new ApplicationStatus();

                    status.setConnected(rs.getInt(1) > 0);
                    status.setCrosspostEnabled(rs.getBoolean(2));

                    return status;
                },
                uid);

        return list.isEmpty() ?
                new ApplicationStatus() : list.get(0);
    }

    @Transactional
    @Override
    public boolean enableFBCrosspost(Integer uid) {
        return getJdbcTemplate().update("UPDATE facebook SET crosspost=true WHERE user_id=?", uid) > 0;
    }

    @Transactional
    @Override
    public void disableFBCrosspost(Integer uid) {
        getJdbcTemplate().update("UPDATE facebook SET crosspost=false WHERE user_id=?", uid);
    }

    @Transactional(readOnly = true)
    @Override
    public String getTwitterName(final int uid) {
        List<String> list = getJdbcTemplate().queryForList(
                "SELECT uname FROM twitter WHERE user_id = ?",
                String.class,
                uid);

        return list.isEmpty() ?
                StringUtils.EMPTY : list.get(0);
    }

    @Transactional(readOnly = true)
    @Override
    public String getTelegramName(final int uid) {
        List<String> list = getJdbcTemplate().queryForList(
                "SELECT tg_name FROM telegram WHERE user_id = ?",
                String.class,
                uid);

        return list.isEmpty() ?
                StringUtils.EMPTY : list.get(0);
    }
    @Override
    @Transactional(readOnly = true)
    public Optional<User> getUserByTelegramId(Long id) {
        List<User> list = getJdbcTemplate().query(
                """
                        SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen,
                        COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified
                        FROM users u LEFT JOIN facebook f ON f.user_id = u.id
                        LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id
                        LEFT JOIN emails e ON e.user_id = u.id
                        WHERE t.tg_id = ?""",
                new UserMapper(), id
        );

        return list.isEmpty() ? Optional.empty() : Optional.of(list.get(0));
    }

    @Transactional(readOnly = true)
    @Override
    public Optional<Pair<String, String>> getVkTokens(final int uid) {
        List<Optional<Pair<String, String>>> list = getJdbcTemplate().query(
                "SELECT vk_id, access_token FROM vk WHERE user_id = ? AND crosspost = 1",
                (rs, num) -> Optional.of(Pair.of(rs.getString(1), rs.getString(2))),
                uid);

        return list.isEmpty() ?
                Optional.empty() : list.get(0);
    }

    @Transactional
    @Override
    public void deleteVKUser(Integer uid) {
        getJdbcTemplate().update("DELETE FROM vk WHERE user_id=?", uid);
    }

    @Transactional(readOnly = true)
    @Override
    public Optional<User> getUserByFacebookId(long facebookId) {
        List<User> list = getJdbcTemplate().query(
                "SELECT DISTINCT u.id, u.nick, u.passw, u.banned, u.last_seen, " +
                        "COALESCE(f.fb_id, vk.vk_id, t.tg_id, e.user_id, 0) AS verified " +
                        "FROM users u LEFT JOIN facebook f ON f.user_id = u.id " +
                        "LEFT JOIN vk ON u.id = vk.user_id LEFT JOIN telegram t ON u.id = t.user_id " +
                        "LEFT JOIN emails e ON e.user_id = u.id WHERE f.fb_id = ?", new UserMapper(), facebookId);

        return list.isEmpty() ? Optional.empty() : Optional.of(list.get(0));
    }

    @Transactional
    @Override
    public boolean createFacebookUser(long fbID, String loginhash, String token, String fbName) {
        return getJdbcTemplate().update("UPDATE facebook SET fb_id=?, access_token=?, fb_name=? WHERE loginhash=?",
                fbID, token, fbName, loginhash) > 0;
    }

    @Transactional
    @Override
    public boolean updateFacebookUser(long fbID, String token, String fbName) {
        return getJdbcTemplate().update("UPDATE facebook SET access_token=?,fb_name=? WHERE fb_id=?",
                token, fbName, fbID) > 0;
    }

    @Transactional(readOnly = true)
    @Override
    public int getUIDbyVKID(long vkID) {
        try {
            return getJdbcTemplate().queryForObject("SELECT user_id FROM vk WHERE vk_id=? AND user_id IS NOT NULL", Integer.class, vkID);
        } catch (EmptyResultDataAccessException e) {
            return 0;
        }
    }

    @Transactional
    @Override
    public boolean createVKUser(long vkID, String loginhash, String token, String vkName, String vkLink) {
        return getJdbcTemplate().update("INSERT INTO vk(vk_id,loginhash,access_token,vk_name,vk_link) VALUES (?,?,?,?,?)",
                vkID, loginhash, token, vkName, vkLink) > 0;
    }

    @Transactional(readOnly = true)
    @Override
    public String getFacebookNameByHash(String hash) {
        try {
            List<Pair<String, String>> fb = getJdbcTemplate().query("SELECT fb_name,fb_link FROM facebook WHERE loginhash=?",
                    (rs, num) -> Pair.of(rs.getString(1), rs.getString(2)), hash);
            if (fb.size() > 0) {
                return "<a href=\"" + fb.get(0).getRight() + "\" rel=\"nofollow\">" + fb.get(0).getLeft() + "</a>";
            }
            return null;
        } catch (EmptyResultDataAccessException e) {
            return null;
        }
    }

    @Transactional
    @Override
    public String getTelegramNameByHash(String hash) {
        try {
            String name = getJdbcTemplate().queryForObject("SELECT tg_name FROM telegram WHERE loginhash=?", String.class, hash);
            return "<a href=\"https://telegram.me/" + name + "\" rel=\"nofollow\">" + name + "</a>";
        } catch (EmptyResultDataAccessException e) {
            return null;
        }
    }

    @Transactional
    @Override
    public boolean setFacebookUser(String hash, int uid) {
        return getJdbcTemplate().update("UPDATE facebook SET user_id=?,loginhash=NULL WHERE loginhash=?", uid, hash) > 0;
    }

    @Transactional
    @Override
    public String getVKNameByHash(String hash) {
        List<Pair<String, String>> logins = getJdbcTemplate().query("SELECT vk_name,vk_link FROM vk WHERE loginhash=?",
                (rs, num) -> Pair.of(rs.getString(1), rs.getString(2)), hash);
        if (logins.size() > 0) {
            return "<a href=\"http://vk.com/" + logins.get(0).getRight() + "\" rel=\"nofollow\">" + logins.get(0).getLeft() + "</a>";
        }
        return null;
    }

    @Transactional
    @Override
    public boolean setVKUser(String hash, int uid) {
        return getJdbcTemplate().update("UPDATE vk SET user_id=?,loginhash=NULL WHERE loginhash=?", uid, hash) > 0;
    }

    @Transactional
    @Override
    public boolean setTelegramUser(String hash, int uid) {
        return getJdbcTemplate().update("UPDATE telegram SET user_id=?,loginhash=NULL WHERE loginhash=?", uid, hash) > 0;
    }

    @Transactional(readOnly = true)
    @Override
    public String getJIDByHash(String hash) {
        try {
            return getJdbcTemplate().queryForObject("SELECT jid FROM jids WHERE loginhash=?", String.class, hash);
        } catch (EmptyResultDataAccessException e) {
            return null;
        }
    }

    @Transactional
    @Override
    public boolean setJIDUser(String hash, int uid) {
        return getJdbcTemplate().update("UPDATE jids SET user_id=?,loginhash=NULL WHERE loginhash=?", uid, hash) > 0;
    }

    @Transactional(readOnly = true)
    @Override
    public boolean canDeleteTelegramUser(User user) {
        return getEmails(user).size() > 0 || getFbCrossPostStatus(user.getUid()).isConnected() || getVkTokens(user.getUid()).isPresent();
    }
}