/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * 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 org.keycloak.migration.migrators;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.keycloak.migration.ModelVersion;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.RealmModel;
import org.keycloak.models.utils.DefaultKeyProviders;
import org.keycloak.representations.idm.RealmRepresentation;

/**
 * @author <a href="mailto:mposolda@redhat.com">Marek Posolda</a>
 */
public class MigrateTo3_4_0 implements Migration {

    public static final ModelVersion VERSION = new ModelVersion("3.4.0");

    @Override
    public void migrate(KeycloakSession session) {
        session.realms().getRealmsStream().forEach(this::migrateRealm);
    }

    @Override
    public void migrateImport(KeycloakSession session, RealmModel realm, RealmRepresentation rep, boolean skipUserDependent) {
        migrateRealm(realm);

    }

    protected void migrateRealm(RealmModel r) {
        DefaultKeyProviders.createAesProvider(r);
        Map<String, String> securityHeaders = r.getBrowserSecurityHeaders();
        if (securityHeaders != null) {

            Map<String, String> browserSecurityHeaders = new HashMap<>(securityHeaders);
            browserSecurityHeaders.put("strictTransportSecurity", "max-age=31536000; includeSubDomains");

            r.setBrowserSecurityHeaders(Collections.unmodifiableMap(browserSecurityHeaders));
        }
    }

    @Override
    public ModelVersion getVersion() {
        return VERSION;
    }
}
