/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.apereo.portal.io.xml.portlettype;

import org.apereo.portal.security.IPermission;

/**
 * Set of supported permissions that can be used in the <permissions></permissions> element of a
 * portlet definition.
 *
 * @since 4.2
 */
public enum ExternalPermissionDefinition {
    SUBSCRIBE(IPermission.PORTAL_SUBSCRIBE, IPermission.PORTLET_SUBSCRIBER_ACTIVITY, false),
    BROWSE(IPermission.PORTAL_SUBSCRIBE, IPermission.PORTLET_BROWSE_ACTIVITY, true);

    private final String system;
    private final String activity;
    private boolean exportForPortletDef;

    ExternalPermissionDefinition(final String system, final String activity, final boolean export) {
        this.system = system;
        this.activity = activity;
        this.exportForPortletDef = export;
    }

    public String getSystem() {
        return system;
    }

    public String getActivity() {
        return activity;
    }

    public boolean getExportForPortletDef() {
        return exportForPortletDef;
    }

    public String toString() {
        return system + "." + activity;
    }

    /**
     * Given a system and activity, attempt to lookup a matching ExternalPermissionDefinition.
     *
     * @param system the system to lookup
     * @param activity the activity to lookup
     * @return the matching permission if one can be found, otherwise null
     */
    public static ExternalPermissionDefinition find(String system, String activity) {
        for (ExternalPermissionDefinition perm : ExternalPermissionDefinition.values()) {
            if (perm.system.equalsIgnoreCase(system) && perm.activity.equalsIgnoreCase(activity)) {
                return perm;
            }
        }

        return null;
    }
}