/*
 * Copyright (c) 2012, Stephen Chin
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the <organization> nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL STEPHEN CHIN OR ORACLE CORPORATION BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package steveonjava.server;

import org.hibernate.SessionFactory;
import org.hibernate.dialect.H2Dialect;
import org.springframework.cache.Cache;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.concurrent.ConcurrentMapCache;
import org.springframework.cache.support.SimpleCacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
import org.springframework.orm.hibernate4.HibernateTransactionManager;
import org.springframework.orm.hibernate4.LocalSessionFactoryBuilder;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;

import javax.sql.DataSource;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

@Configuration
@EnableCaching
@EnableWebMvc
@EnableTransactionManagement
public class ServicesConfiguration {

    @Bean
    public CustomerService customerService() throws Exception {
        return new CustomerService(this.sessionFactory());
    }

    @Bean
    @SuppressWarnings("deprecation")
    public SessionFactory sessionFactory() throws Exception {
        Properties props = new Properties();

        Map<String, String> p = new HashMap<String, String>();
        p.put(org.hibernate.cfg.Environment.HBM2DDL_AUTO, "create");
        p.put(org.hibernate.cfg.Environment.HBM2DDL_IMPORT_FILES, "import_h2.sql");
        p.put(org.hibernate.cfg.Environment.DIALECT, H2Dialect.class.getName());
        p.put(org.hibernate.cfg.Environment.SHOW_SQL, "true");
        Map<String, String> propsMap = p;

        for (String k : propsMap.keySet())
            props.setProperty(k, propsMap.get(k));

        return new LocalSessionFactoryBuilder(dataSource())
            .addAnnotatedClasses(Customer.class)
            .addProperties(props)
            .buildSessionFactory();
    }

    @Bean
    public PlatformTransactionManager transactionManager() throws Exception {
        return new HibernateTransactionManager(sessionFactory());
    }

    @Bean
    public DataSource dataSource() throws Exception {
        return new EmbeddedDatabaseBuilder()
            .setName("crm")
            .setType(EmbeddedDatabaseType.H2)
            .build();
    }

    @Bean
    public CacheManager cacheManager() throws Exception {
        SimpleCacheManager scm = new SimpleCacheManager();
        Cache cache = new ConcurrentMapCache("customers");
        scm.setCaches(Arrays.asList(cache));
        return scm;
    }

}