/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF 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
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  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.grails.plugins.databasemigration.liquibase

import groovy.transform.CompileStatic
import liquibase.database.DatabaseConnection
import liquibase.exception.DatabaseException
import liquibase.ext.hibernate.database.HibernateDatabase
import liquibase.database.jvm.JdbcConnection
import liquibase.ext.hibernate.database.connection.HibernateConnection
import org.grails.orm.hibernate.HibernateDatastore
import org.hibernate.boot.Metadata
import org.hibernate.boot.MetadataSources
import org.hibernate.dialect.Dialect

/**
 * A Liquibase database implementation that uses GORM's metadata.
 *
 * @author Graeme Rocher
 * @since 2.0
 */
@CompileStatic
class GormDatabase extends HibernateDatabase {

    final String shortName = 'GORM'
    final String DefaultDatabaseProductName = 'getDefaultDatabaseProductName'

    private HibernateDatastore gormDatastore

    GormDatabase() {
        super()
    }

    GormDatabase(Dialect dialect, HibernateDatastore hibernateDatastore) {
        super()
        this.dialect = dialect
        this.gormDatastore = hibernateDatastore
        setConnection(new JdbcConnection(new HibernateConnection('hibernate:gorm', null)))
    }

    @Override
    protected String findDialectName() {
        dialect?.getClass()?.getName()
    }

    /**
     * Return the hibernate {@link Metadata} used by this database.
     */
    @Override
    Metadata getMetadata() {
        gormDatastore.getMetadata()
    }

    DatabaseConnection getDatabaseConnection() {
        return super.getConnection()
    }

    HibernateDatastore getGormDatastore() {
        gormDatastore
    }

    @Override
    boolean supportsAutoIncrement() {
        return true
    }

    @Override
    protected void configureSources(MetadataSources sources) throws DatabaseException {
        //no op
    }

    @Override
    boolean isCorrectDatabaseImplementation(DatabaseConnection conn) throws DatabaseException {
        return false
    }
}
