/*
 *  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 grails.plugin.springsecurity.acl.cache

import javax.cache.configuration.Configuration
import javax.cache.configuration.MutableConfiguration

import groovy.transform.CompileStatic

import org.springframework.beans.factory.FactoryBean
import org.springframework.beans.factory.InitializingBean
import org.springframework.cache.jcache.JCacheCache
import org.springframework.cache.jcache.JCacheCacheManager
import org.springframework.security.acls.domain.AclAuthorizationStrategy
import org.springframework.security.acls.domain.SpringCacheBasedAclCache
import org.springframework.security.acls.model.MutableAcl
import org.springframework.security.acls.model.PermissionGrantingStrategy
import org.springframework.util.Assert

@CompileStatic
class SpringAclCacheFactoryBean implements FactoryBean<SpringCacheBasedAclCache>, InitializingBean {

    JCacheCacheManager cacheManager
    String cacheName
    Configuration cacheConfig
    PermissionGrantingStrategy permissionGrantingStrategy
    AclAuthorizationStrategy aclAuthorizationStrategy
    private SpringCacheBasedAclCache springAclCache

    @Override
    SpringCacheBasedAclCache getObject() throws Exception {
        springAclCache
    }

    @Override
    Class<?> getObjectType() {
        SpringCacheBasedAclCache
    }

    @Override
    void afterPropertiesSet() throws Exception {
        Assert.notNull(cacheManager, 'cacheManager is required')
        Assert.notNull(cacheName, 'cacheName is required')
        Assert.notNull(permissionGrantingStrategy, 'permissionGrantingStrategy is required')
        Assert.notNull(aclAuthorizationStrategy, 'aclAuthorizationStrategy is required')
        if (!cacheConfig) {
            cacheConfig = new MutableConfiguration<Object, MutableAcl>()
                    .setTypes(Object, MutableAcl)
                    .setStoreByValue(false)
        }
        springAclCache = new SpringCacheBasedAclCache(
                new JCacheCache(cacheManager.cacheManager.createCache(cacheName, cacheConfig)),
                permissionGrantingStrategy,
                aclAuthorizationStrategy
        )
    }
}
