/**
 * Copyright (C) 2014 Cohesive Integrations, LLC (info@cohesiveintegrations.com)
 *
 * Licensed 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
 *
 *         http://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 net.di2e.ecdr.search.transform.atom.security.impl;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Dictionary;
import java.util.Hashtable;
import java.util.List;

import net.di2e.ecdr.api.security.SecurityConfiguration;
import net.di2e.ecdr.commons.util.ConfigAdminUtils;

import org.osgi.framework.InvalidSyntaxException;
import org.osgi.service.cm.Configuration;
import org.osgi.service.cm.ConfigurationAdmin;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DefaultAtomFeedConfig {

    private static final String CONFIG_PID = "cdr-security-configurations";

    private static final Logger LOGGER = LoggerFactory.getLogger( DefaultAtomFeedConfig.class );

    private ConfigurationAdmin configAdmin;

    private List<Configuration> configurationList = new ArrayList<>();

    public enum DefaultConfig {

        ISM_v9( "atom,atom-ddms,atom-ddms-4.1,query-default,metacard-default," + SecurityConfiguration.DEFAULT_FORMAT_CONFIGURATION, "urn:us:gov:ic:ism",
                "DESVersion=9,classification=U,ownerProducer=USA" ), ISM_v2( "atom-ddms-2.0", "urn:us:gov:ic:ism:v2", "classification=U,ownerProducer=USA" );

        private final String format;
        private final String namespace;
        private final String attributes;

        DefaultConfig( String entryFormat, String entryNamespace, String entryAttributes ) {
            format = entryFormat;
            namespace = entryNamespace;
            attributes = entryAttributes;
        }

        public String getFormats() {
            return format;
        }

        public String getNamespace() {
            return namespace;
        }

        public String getAttributes() {
            return attributes;
        }

    }

    public DefaultAtomFeedConfig( ConfigurationAdmin configurationAdmin ) {
        configAdmin = configurationAdmin;
    }

    public void init() throws IOException, InvalidSyntaxException {
        if ( !ConfigAdminUtils.configurationPidExists( configAdmin, CONFIG_PID ) ) {
            for ( DefaultConfig config : DefaultConfig.values() ) {
                LOGGER.debug( "Adding configuration with format {}", config.getFormats() );
                Configuration configuration = configAdmin.createFactoryConfiguration( CONFIG_PID );
                Dictionary<String, Object> properties = new Hashtable<>();
                properties.put( "configFormats", Arrays.asList( config.getFormats().split( "," ) ) );
                properties.put( "namespace", config.getNamespace() );
                properties.put( "attributeList", Arrays.asList( config.getAttributes().split( "," ) ) );
                configuration.update( properties );
                configurationList.add( configuration );
            }
        }
    }

}