package org.gcube.vremanagement.whnmanager.jaxws.ws;

import java.util.Arrays;
import java.util.Iterator;

import javax.jws.WebService;
import org.gcube.smartgears.ContextProvider;
import org.gcube.smartgears.context.application.ApplicationContext;
import org.gcube.smartgears.context.container.ContainerContext;
import org.gcube.smartgears.handlers.container.lifecycle.ProfilePublisher;
import org.gcube.vremanagement.whnmanager.utils.ValidationUtils;
import org.gcube.common.resources.gcore.HostingNode;
import org.gcube.common.resources.gcore.ScopeGroup;
import org.gcube.common.scope.impl.ScopeBean;
import org.gcube.common.scope.impl.ScopeBean.Type;
import org.gcube.resourcemanagement.whnmanager.api.exception.GCUBEUnrecoverableException;
import org.gcube.resourcemanagement.whnmanager.api.WhnManager;
import org.gcube.resourcemanagement.whnmanager.api.types.AddScopeInputParams;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@WebService(portName = "WhnManagerIOPort", 
serviceName = WhnManager.SERVICE_NAME, 
targetNamespace = WhnManager.TNS, 
endpointInterface = "org.gcube.resourcemanagement.whnmanager.api.WhnManager" )
//@Singleton
public class WhnManagerImpl implements WhnManager{

	
	private static Logger logger=LoggerFactory.getLogger(WhnManagerImpl.class);
	
	
	/**
	 * Add a scope to the ghn profile and publish it on IS
	 */
	@Override
	public boolean addScope(AddScopeInputParams params)  throws GCUBEUnrecoverableException {
		logger.trace("WHNManager: addScope method invokation");
		String scope=params.getScope();
		ValidationUtils.valid("scope", scope);
		ApplicationContext context = ContextProvider.get();
		if(context!=null){
			HostingNode ghn=context.container().profile(HostingNode.class);
			if(new ScopeBean(scope).is(Type.VRE)){
				logger.debug("addScope operation on VRE scope. Check if present VO scope");
				scope=new ScopeBean(scope).enclosingScope().toString();
				logger.debug("VO scope: "+scope);
			}
			if(!ValidationUtils.isPresent(ghn, scope)){
				ValidationUtils.addEnclosingScopesOnResource(ghn, scope);
				logger.debug("addScope method: add scope "+scope+" to resource with id: "+ghn.id());
				ghn.scopes().asCollection().add(scope);
				ScopeGroup<String> scopes=ghn.scopes();
				logger.debug(" resource will be  published in scopes: ");
				for(Iterator it=scopes.iterator(); it.hasNext();){
					String scopeFound=(String)it.next();
					logger.debug(" - "+scopeFound);
				}
				ContainerContext container=context.container();
				ProfilePublisher publisher= new ProfilePublisher(container);
				publisher.update();
			}else{
				logger.warn("the scope "+scope+" is already present on ghn profile with id: "+ ghn.id());
			}
		}else{
			logger.warn("addScope method: context is null");
		}
		return true;
	}

	/**
	 * Remove a scope from ghn profile and publish the new profile on IS
	 */
	@Override
	public boolean removeScope(String scope)  throws GCUBEUnrecoverableException {
		logger.trace("WHN-Manager: removeScope method invokation");
		ValidationUtils.valid("scope", scope);
		if(new ScopeBean(scope).is(Type.VRE)){
			logger.debug("this is a VRE scope. The request will be ignored ");
			return true;
		}
			
		ApplicationContext context = ContextProvider.get();
		if(context!=null){
			HostingNode ghn=context.container().profile(HostingNode.class);
			if(ValidationUtils.isPresent(ghn, scope)){
				logger.debug("removeScope method: remove scope "+scope+" to resource with id: "+ghn.id());
				ContainerContext container=context.container();
				ProfilePublisher publisher= new ProfilePublisher(container);
				publisher.removeFrom(Arrays.asList(scope));
			}else{
				logger.warn("scope is not present in the resource");
			}
		}else{
			logger.warn("addScope method: context is null");
		}
		return true;
	}
	
//	@Override
//	public boolean addRIToScope(ScopeRIParams params)  throws GCUBEUnrecoverableException{
//		logger.debug("addRIToScope dummy method: Adding scope "	+ params.getScope() + " to RI <" + params.getClazz() +","+ params.getName() +">");
//		
//		return true;
//	}
//	
//	@Override
//	public boolean activateRI(RIData ri)  throws GCUBEUnrecoverableException{
//		logger.debug("dummy activereRI method with param "+ri);
//		return true;
//	}
//	
//
//	@Override
//	public boolean deactivateRI(RIData ri)  throws GCUBEUnrecoverableException{
//		logger.debug("dummy deactivateRI method with param "+ri);
//		return true;
//	}
//
//	@Override
//	public boolean removeRIFromScope(ScopeRIParams params)  throws GCUBEUnrecoverableException{
//		logger.debug("dummy removeRIFromScope method with param "+params);
//		return true;
//	}
}