/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use
 * this file except in compliance with the License. You may obtain a copy of the License at the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apereo.portal.jpa;

import org.apereo.portal.jpa.BaseAggrEventsJpaDao.AggrEventsTransactional;
import org.apereo.portal.tools.dbloader.ISchemaExport;
import org.apereo.portal.version.VersionUtils;
import org.apereo.portal.version.om.Version;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Component;

/**
 * Update the aggregate stats db from 4.0.4
 *
 */
@Component
public class Version404AggrEventsDatabaseUpdateHelper implements IVersionedDatabaseUpdateHelper {
    protected final Logger logger = LoggerFactory.getLogger(getClass());

    private final Version version = VersionUtils.parseVersion("4.0.4");
    private ISchemaExport schemaExport;

    @Autowired
    @Qualifier(BaseAggrEventsJpaDao.PERSISTENCE_UNIT_NAME)
    public void setSchemaExport(ISchemaExport schemaExport) {
        this.schemaExport = schemaExport;
    }

    @Override
    public String getDatabaseName() {
        return BaseAggrEventsJpaDao.PERSISTENCE_UNIT_NAME;
    }

    @Override
    public Version getVersion() {
        return version;
    }

    @AggrEventsTransactional
    @Override
    public void preUpdate() {
        //Drop the aggregate events database tables
        logger.info("Dropping aggregate event tables for upgrade from " + getVersion());
        this.schemaExport.drop(true, null, true);

        //Create the aggregate events database tables
        logger.info("Creating aggregate event tables for upgrade from " + getVersion());
        this.schemaExport.create(true, null, true);

        logger.warn(
                "IMPORTANT: You must import your event aggregation configuration again!\n\tex: ant data-import -Dfile=/path/to/uportal/uportal-war/src/main/data/default_entities/event-aggregation/default.event-aggregation.xml");
    }

    @Override
    public void postUpdate() {}
}