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/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.uberfire.social.activities.security;

import org.kie.uberfire.social.activities.model.SocialActivitiesEvent;
import org.kie.uberfire.social.activities.service.SocialSecurityConstraint;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Instance;
import javax.inject.Inject;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

@ApplicationScoped
public class SocialSecurityConstraintsManager {


    @Inject
    private Instance socialSecurityConstraints;


    public List applyConstraints( List events ) {
        List secureEvents = new ArrayList();

        initConstraints();

        for ( SocialActivitiesEvent event : events ) {
            if ( isAllowed( event ) ) {
                secureEvents.add( event );
            }
        }

        return secureEvents;
    }

    private void initConstraints() {
        for ( SocialSecurityConstraint securityConstraint : getSocialSecurityConstraints() ) {
            securityConstraint.init();
        }
    }

    private boolean isAllowed( SocialActivitiesEvent event ) {
        for ( SocialSecurityConstraint securityConstraint : getSocialSecurityConstraints() ) {
            if ( securityConstraint.hasRestrictions( event ) ) {
                return false;
            }
        }
        return true;
    }

    Instance getSocialSecurityConstraints() {
        return socialSecurityConstraints;
    }
}