/* All content copyright (c) 2003-2012 Terracotta, Inc., except as may otherwise be noted in a separate copyright notice.  All rights reserved.*/

package org.quartz.management.resource.services;

import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import javax.ws.rs.Path;
import javax.ws.rs.core.UriInfo;

import org.quartz.management.service.EntityResourceFactory;
import org.terracotta.management.ServiceLocator;
import org.terracotta.management.resource.AgentEntity;
import org.terracotta.management.resource.AgentMetadataEntity;
import org.terracotta.management.resource.Representable;
import org.terracotta.management.resource.services.AgentsResourceService;
import org.terracotta.management.resource.services.validator.RequestValidator;

/**
 * An embedded implementation of {@link AgentsResourceService}.
 * <p/>
 * 
 * @author brandony
 */
@Path("/agents")
public final class AgentsResourceServiceImpl implements AgentsResourceService {
    private final static Set<String> DFLT_ATTRS = new HashSet<String>(Arrays.asList(new String[] { "Name" }));
    private final EntityResourceFactory entityResourceFactory;
    private final RequestValidator validator;

    public AgentsResourceServiceImpl() {
        this.entityResourceFactory = ServiceLocator.locate(EntityResourceFactory.class);
        validator = null;
    }

    /**
     * {@inheritDoc}
     */
    public Collection<AgentEntity> getAgents(UriInfo info) {
        // validator.validateSafe(info);

        return buildAgent();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Collection<AgentMetadataEntity> getAgentsMetadata(UriInfo info) {
        // validator.validateSafe(info);

        AgentMetadataEntity ame = new AgentMetadataEntity();
        ame.setAgentId(AgentEntity.EMBEDDED_AGENT_ID);
        // TODO: I imagine there is some specific ehcache naming detail we can
        // discover to build up a more descriptive name.
        // If this ends up being a static value then make it a static member.
        ame.setAgencyOf("Quartz");
        // Set the version from this package
        ame.setVersion(this.getClass().getPackage().getImplementationVersion());
        ame.setAvailable(true);
        return Collections.singleton(ame);
    }

    private Collection<AgentEntity> buildAgent() {
        throw new UnsupportedOperationException("Bitrot happened here!");
//        AgentEntity e = new AgentEntity();
//        e.setAgentId(AgentEntity.EMBEDDED_AGENT_ID);
//
//        Collection<Representable> reps = new HashSet<Representable>();
//        reps.addAll(entityResourceFactory.createSchedulerEntities(null, DFLT_ATTRS));
//        e.setRootRepresentables(reps);
//
//        return Collections.singleton(e);
    }
}