package com.c2kernel.entity.agent;

import com.c2kernel.common.CannotManageException;
import com.c2kernel.common.ObjectCannotBeUpdated;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.common.SystemKey;
import com.c2kernel.entity.AgentOperations;
import com.c2kernel.entity.ItemImplementation;
import com.c2kernel.lifecycle.instance.predefined.PredefinedStepContainer;
import com.c2kernel.lifecycle.instance.predefined.agent.AgentPredefinedStepContainer;
import com.c2kernel.lookup.AgentPath;
import com.c2kernel.lookup.ItemPath;
import com.c2kernel.lookup.RolePath;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.Logger;

public class AgentImplementation extends ItemImplementation implements
		AgentOperations {

	private JobList currentJobs;
	private final AgentPath mAgentPath;
	
	public AgentImplementation(AgentPath path) {
		super(path);
		mAgentPath = path;
	}

	   /**
     * Called by an activity when it reckons we need to update our joblist for it
     */

    @Override
	public synchronized void refreshJobList(SystemKey sysKey, String stepPath, String newJobs) {
        try {
        	ItemPath itemPath = new ItemPath(sysKey);
            JobArrayList newJobList = (JobArrayList)Gateway.getMarshaller().unmarshall(newJobs);

            // get our joblist
            if (currentJobs == null)
                currentJobs = new JobList( itemPath, null);

            // remove old jobs for this item
            currentJobs.removeJobsForStep( itemPath, stepPath );

            // merge new jobs in
            for (Object name : newJobList.list) {
                Job newJob = (Job)name;
                Logger.msg(6, "Adding job for "+newJob.getItemPath()+"/"+newJob.getStepPath()+":"+newJob.getTransition().getId());
                currentJobs.addJob(newJob);
            }

        } catch (Throwable ex) {
            Logger.error("Could not refresh job list.");
            Logger.error(ex);
        }

    }

    @Override
	public void addRole(String roleName) throws CannotManageException, ObjectNotFoundException {
        RolePath newRole = Gateway.getLookup().getRolePath(roleName);
        try {
            newRole.addAgent(mAgentPath);
        } catch (ObjectCannotBeUpdated ex) {
            throw new CannotManageException("Could not update role");
        }
    }

    @Override
	public void removeRole(String roleName) throws CannotManageException, ObjectNotFoundException {
        RolePath rolePath = Gateway.getLookup().getRolePath(roleName);
        try {
            rolePath.removeAgent(mAgentPath);
        } catch (ObjectCannotBeUpdated ex) {
            throw new CannotManageException("Could not update role");
        }
    }

	@Override
	protected PredefinedStepContainer getNewPredefStepContainer() {
		return new AgentPredefinedStepContainer();
	}
}