/*
 * Copyright (C) 2008-2023, 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.ExternalToken;
import org.apache.commons.collections4.CollectionUtils;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Collection;
import java.util.Collections;

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

    private class TokenMapper implements RowMapper<ExternalToken> {

        @Override
        public ExternalToken mapRow(ResultSet rs, int rowNum) throws SQLException {
            return new ExternalToken(
                    null,
                    rs.getString("service_type"),
                    rs.getString("regid"),
                    null
            );
        }
    }

    @Transactional(readOnly = true)
    @Override
    public Collection<ExternalToken> getToken(final int uid, final String serviceType) {
        return getJdbcTemplate().query(
                "SELECT regid, service_type FROM user_services WHERE user_id=? AND service_type=?",
                new TokenMapper(),
                uid, serviceType);
    }

    @Transactional(readOnly = true)
    @Override
    public Collection<ExternalToken> getTokens(final Collection<Integer> uids) {
        if (CollectionUtils.isEmpty(uids))
            return Collections.emptyList();
        return getNamedParameterJdbcTemplate().query(
                """
                        SELECT regid, service_type FROM user_services INNER JOIN users
                        ON (users.id = user_services.user_id) WHERE users.id IN (:ids)""",
                new MapSqlParameterSource("ids", uids),
                new TokenMapper());
    }

    @Transactional
    @Override
    public boolean addToken(final Integer uid, final String serviceType, final String token) {
        try {
            return getJdbcTemplate().update(
                    "INSERT INTO user_services(user_id, regid, service_type) VALUES (?, ?, ?)",
                    uid, token, serviceType) > 0;
        } catch (DataIntegrityViolationException e) {
            return false;
        }
    }

    @Transactional
    @Override
    public boolean deleteToken(final String serviceType, final String token) {
        return getJdbcTemplate().update("DELETE FROM user_services WHERE regid=? AND service_type=?", token, serviceType) > 0;
    }
}