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/*
 * Copyright (C) 2008-2017, 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.configuration;

import com.juick.service.search.SearchService;
import com.zaxxer.hikari.HikariDataSource;
import org.apache.commons.lang3.StringUtils;
import org.springframework.context.annotation.*;
import org.springframework.core.env.Environment;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.annotation.TransactionManagementConfigurer;

import javax.annotation.Resource;
import javax.sql.DataSource;
import java.util.Collections;
import java.util.List;

/**
 * Created by aalexeev on 11/11/16.
 */
@Configuration
@EnableTransactionManagement
@PropertySource(value = {"classpath:juick.conf"})
@ComponentScan(basePackages = {"com.juick.service"})
public class DataConfiguration implements TransactionManagementConfigurer {
    @Resource
    private Environment env;

    // NOTE: The close() method will be called automatically with default @Bean settings
    // But Datasource interface has no close() method
    @Bean
    public DataSource dataSource() {
        HikariDataSource dataSource = new HikariDataSource();

        dataSource.setDriverClassName(env.getProperty("datasource_driver", "com.mysql.jdbc.Driver"));
        dataSource.setJdbcUrl(env.getProperty("datasource_url"));
        dataSource.setUsername(env.getProperty("datasource_user", StringUtils.EMPTY));
        dataSource.setPassword(env.getProperty("datasource_password", StringUtils.EMPTY));

        //dataSource.setValidationQuery("select 1");

        return dataSource;
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        return new DataSourceTransactionManager(dataSource());
    }

    @Override
    public PlatformTransactionManager annotationDrivenTransactionManager() {
        return transactionManager();
    }

    @Bean
    @DependsOn("dataSource")
    public JdbcTemplate jdbcTemplate() {
        return new JdbcTemplate(dataSource());
    }

    @Bean
    public SearchService emptySearchService() {
        return new SearchService() {
            @Override
            public void setMaxResult(int maxResult) {
            }

            @Override
            public List<Integer> searchInAllMessages(String searchString, int messageIdBefore) {
                return Collections.emptyList();
            }

            @Override
            public List<Integer> searchByStringAndUser(String searchString, int userId, int messageIdBefore) {
                return Collections.emptyList();
            }
        };
    }
}