/**
 * 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.layout.dlm.providers;

import javax.persistence.Cacheable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.servlet.http.HttpServletRequest;
import org.apereo.portal.layout.dlm.Evaluator;
import org.apereo.portal.layout.dlm.EvaluatorFactory;
import org.apereo.portal.layout.profile.IProfileMapper;
import org.apereo.portal.security.IPerson;
import org.apereo.portal.spring.locator.ApplicationContextLocator;
import org.apereo.portal.url.IPortalRequestUtils;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;
import org.springframework.context.ApplicationContext;

@Entity
@Cacheable
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class ProfileEvaluator extends Evaluator {

    @Column(name = "PROFILE_FNAME")
    protected String profileFname;

    public ProfileEvaluator() {}

    public ProfileEvaluator(String profileFname) {
        this.profileFname = profileFname;
    }

    @Override
    public boolean isApplicable(IPerson person) {

        final ApplicationContext applicationContext =
                ApplicationContextLocator.getApplicationContext();
        final IPortalRequestUtils portalRequestUtils =
                applicationContext.getBean(IPortalRequestUtils.class);
        final IProfileMapper profileMapper =
                applicationContext.getBean("profileMapper", IProfileMapper.class);

        final HttpServletRequest request = portalRequestUtils.getCurrentPortalRequest();
        final String currentFname = profileMapper.getProfileFname(person, request);

        return profileFname.equals(currentFname);
    }

    @Override
    public void toElement(Element parent) {
        // Assertions.
        if (parent == null) {
            String msg = "Argument 'parent' cannot be null.";
            throw new IllegalArgumentException(msg);
        }

        Element rslt = DocumentHelper.createElement("profile");
        rslt.addAttribute("fname", this.profileFname);
        parent.add(rslt);
    }

    @Override
    public Class<? extends EvaluatorFactory> getFactoryClass() {
        return ProfileEvaluatorFactory.class;
    }

    @Override
    public String getSummary() {
        return "(PROFILE IS '" + this.profileFname + "')";
    }
}