package org.gcube.data.analysis.nlphub.is;

import java.util.ArrayList;
import java.util.List;

import org.gcube.common.resources.gcore.GCoreEndpoint;
import org.gcube.common.resources.gcore.ServiceEndpoint;
import org.gcube.common.scope.api.ScopeProvider;
import org.gcube.resources.discovery.client.api.DiscoveryClient;
import org.gcube.resources.discovery.client.queries.api.SimpleQuery;
import org.gcube.resources.discovery.icclient.ICFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class InformationSystemUtils {
	private static Logger logger = LoggerFactory.getLogger(InformationSystemUtils.class);

	public static List<String> retrieveServiceEndpoint(String category, String name, String scope) throws Exception {
		try {

			if (scope == null || scope.length() == 0)
				return new ArrayList<String>();

			ScopeProvider.instance.set(scope);

			SimpleQuery query = ICFactory.queryFor(ServiceEndpoint.class);
			query.addCondition("$resource/Profile/Category/text() eq '" + category + "'")
					.addCondition("$resource/Profile/Name/text() eq '" + name + "'")
					.setResult("$resource/Profile/AccessPoint/Interface/Endpoint/text()");
			DiscoveryClient<String> client = ICFactory.client();
			List<String> addresses = client.submit(query);

			return addresses;

		} catch (Throwable e) {
			logger.error("Error in discovery DataMiner Service Endpoint in scope: " + scope);
			logger.error("Error: " + e.getLocalizedMessage(),e);
			throw e;
		}
	}
	
	
	public static List<String> retrieveGCoreEndpoint(String category, String name, String scope) throws Exception {
		try {

			if (scope == null || scope.length() == 0)
				return new ArrayList<String>();

			ScopeProvider.instance.set(scope);

			SimpleQuery query = ICFactory.queryFor(GCoreEndpoint.class);
			query.addCondition("$resource/Profile/ServiceClass/text() eq '" + category + "'")
					.addCondition("$resource/Profile/ServiceName/text() eq '" + name + "'")
					.setResult("$resource/Profile/AccessPoint/Interface/text()");
			DiscoveryClient<String> client = ICFactory.client();
			List<String> addresses = client.submit(query);
			return addresses;

		} catch (Throwable e) {
			logger.error("Error in discovery DataMiner Service Endpoint in scope: " + scope);
			logger.error("Error: " + e.getLocalizedMessage(),e);
			throw e;
		}
	}

}