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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.User;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import java.util.Collections;
import java.util.List;
/**
* Created by aalexeev on 11/13/16.
*/
@Repository
@Transactional(readOnly = true)
public class ShowQueriesServiceImpl extends BaseJdbcService implements ShowQueriesService {
@Override
public List<String> getRecommendedUsers(final User forUser) {
if (forUser == null)
return Collections.emptyList();
return getNamedParameterJdbcTemplate().queryForList(
"SELECT u.nick FROM subscr_users su1 INNER JOIN users u " +
"ON su1.user_id = u.id " +
"WHERE NOT EXISTS (SELECT 1 FROM subscr_users su2 WHERE su2.suser_id = :uid and su1.user_id = su2.user_id) " +
"AND EXISTS (SELECT 1 FROM subscr_users su3 WHERE su3.suser_id = :uid and su3.user_id = su1.suser_id ) " +
"AND NOT EXISTS (SELECT 1 FROM bl_users b WHERE b.user_id = :uid and su1.user_id = b.bl_user_id) " +
"AND su1.user_id != :uid AND u.lastmessage > UNIX_TIMESTAMP() - 259200 " +
"GROUP BY su1.user_id ORDER BY count(*) DESC LIMIT 10",
new MapSqlParameterSource("uid", forUser.getUid()),
String.class);
}
@Override
public List<String> getTopUsers() {
return getJdbcTemplate().query("""
SELECT users.nick,COUNT(subscr_users.suser_id) AS cnt
FROM (subscr_users INNER JOIN users ON subscr_users.user_id=users.id)
WHERE users.lastmessage > UNIX_TIMESTAMP() - 259200
AND users.id!=2 GROUP BY subscr_users.user_id ORDER BY cnt DESC LIMIT 10""",
(rs, rowNum) -> rs.getString(1));
}
}
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