package org.gcube.portlets.admin.systemservicedefinition.is;

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

import org.gcube.common.authorization.library.provider.AccessTokenProvider;
import org.gcube.common.authorization.library.provider.SecurityTokenProvider;
import org.gcube.common.encryption.encrypter.StringEncrypter;
import org.gcube.common.resources.gcore.ScopeGroup;
import org.gcube.common.resources.gcore.ServiceEndpoint;
import org.gcube.common.resources.gcore.ServiceEndpoint.AccessPoint;
import org.gcube.common.resources.gcore.ServiceEndpoint.Profile;
import org.gcube.common.scope.api.ScopeProvider;
import org.gcube.informationsystem.publisher.RegistryPublisher;
import org.gcube.informationsystem.publisher.RegistryPublisherFactory;
import org.gcube.informationsystem.publisher.ScopedPublisher;
import org.gcube.portlets.admin.systemservicedefinition.definition.DefinitionItem;
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 ArrayList<DefinitionItem> retrieveSSD(String category, String scope, String token) throws Exception {

		try {
			logger.debug("Retrieve System Services Definition on IS");

			if (scope == null || scope.isEmpty())
				throw new Exception("Invalid scope: " + scope);

			if (token == null || token.isEmpty())
				throw new Exception("Invalid token: " + scope);

			ScopeProvider.instance.set(scope);
			// AccessTokenProvider.instance.set(token);
			// SecurityTokenProvider.instance.set(token);

			SimpleQuery query = ICFactory.queryFor(ServiceEndpoint.class);
			query.addCondition("$resource/Profile/Category/text() eq '" + category + "'");
			DiscoveryClient<ServiceEndpoint> client = ICFactory.clientFor(ServiceEndpoint.class);

			List<ServiceEndpoint> resources = client.submit(query);

			logger.debug("Retrieved: " + resources);

			ArrayList<DefinitionItem> ssdList = new ArrayList<DefinitionItem>();

			for (ServiceEndpoint se : resources) {
				DefinitionItem definitionItem = new DefinitionItem();
				definitionItem.setClientId(se.profile().name());
				definitionItem.setDescription(se.profile().description());
				for (AccessPoint accessPoint : se.profile().accessPoints()) {
					definitionItem.setUsername(accessPoint.username());
					String decryptedSecret = StringEncrypter.getEncrypter().decrypt(accessPoint.password());

					definitionItem.setSecret(decryptedSecret);
					break;
				}
				ssdList.add(definitionItem);
			}

			logger.debug("SSDList: {}", ssdList);
			return ssdList;

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

	public static void publishSSD(DefinitionItem definitionItem, String category, String scope, String token)
			throws Exception {
		if (definitionItem == null)
			throw new Exception("Invalid definition: " + definitionItem);

		if (category == null || category.isEmpty())
			throw new Exception("Invalid category: " + category);

		if (scope == null || scope.isEmpty())
			throw new Exception("Invalid scope: " + scope);

		if (token == null || token.isEmpty())
			throw new Exception("Invalid token: " + token);

		ServiceEndpoint toPublish = new ServiceEndpoint();

		/*List<String> scopes = new ArrayList<String>();
		scopes.add(scope);
		Collection<String> col = toPublish.scopes().asCollection();
		col.addAll(scopes);*/
		
		toPublish.newProfile();
		toPublish.profile().description(definitionItem.getDescription());
		toPublish.profile().name(definitionItem.getClientId());
		toPublish.profile().category(category);
		//toPublish.profile().version("1.0.0");

		AccessPoint accessPoint = new AccessPoint();
		//String encryptedPassword = StringEncrypter.getEncrypter().encrypt(definitionItem.getSecret());
		accessPoint.credentials(definitionItem.getSecret(), definitionItem.getUsername());
		accessPoint.description("Keycloak client credentials");
		accessPoint.address("accounts.dev.d4science.org");
		accessPoint.name(definitionItem.getClientId());
		toPublish.profile().accessPoints().add(accessPoint);

		toPublish.profile().newPlatform().name("d4science");
		toPublish.profile().platform().version((short) 0);
		toPublish.profile().platform().minorVersion((short) 0);
		toPublish.profile().platform().revisionVersion((short) 0);
		toPublish.profile().platform().buildVersion((short) 0);

		
		toPublish.profile().newRuntime().hostedOn("d4science.org");
		toPublish.profile().runtime().status("READY");
		
		

		logger.debug("Request publish: {}", toPublish);
		try {
			ScopeProvider.instance.set(scope);
			// AccessTokenProvider.instance.set(token);
			// SecurityTokenProvider.instance.set(token);
			
			RegistryPublisher publisher = RegistryPublisherFactory.create();

			String id = publisher.create(toPublish).id();
			logger.debug("Created new RR sent, Got from publisher: id=" + id);

			// ScopedPublisher sp=RegistryPublisherFactory.scopedPublisher();
			// toPublish = sp.create(toPublish,scopes);
		} catch (Exception e) {
			logger.error("Error publishing the ssd on IS: {}", e.getLocalizedMessage(), e);
			throw e;
		}
		logger.debug("Published on IS");

	}
}