package org.gcube.portlets.user.sbdportlets;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletException;
import javax.servlet.http.HttpServletRequest;

import org.gcube.applicationsupportlayer.social.ApplicationNotificationsManager;
import org.gcube.applicationsupportlayer.social.NotificationsManager;
import org.gcube.applicationsupportlayer.social.shared.SocialNetworkingSite;
import org.gcube.applicationsupportlayer.social.shared.SocialNetworkingUser;
import org.gcube.common.authorization.library.provider.SecurityTokenProvider;
import org.gcube.common.homelibrary.home.HomeLibrary;
import org.gcube.common.homelibrary.home.workspace.Workspace;
import org.gcube.common.portal.PortalContext;
import org.gcube.common.scope.api.ScopeProvider;
import org.gcube.portal.notifications.bean.GenericItemBean;
import org.gcube.portal.notifications.thread.MessageNotificationsThread;
import org.gcube.vomanagement.usermanagement.impl.LiferayRoleManager;
import org.gcube.vomanagement.usermanagement.impl.LiferayUserManager;
import org.gcube.vomanagement.usermanagement.model.GCubeUser;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.servlet.SessionMessages;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.model.User;
import com.liferay.portal.theme.ThemeDisplay;
import com.liferay.portal.util.PortalUtil;
import com.liferay.util.bridges.mvc.MVCPortlet;

/**
 * upload method/dataset: UserUpload Admin
- Share idea: UserIdea Admin
 * Portlet implementation class UploadDataset
 */
public class UploadDataset extends MVCPortlet {
	private static Log _log = LogFactoryUtil.getLog(UploadDataset.class);
	private static String UPLOAD_DATASET_ROLE_MANAGER_NAME = "UserUpload-Admin";

	private LiferayRoleManager roleManager = new LiferayRoleManager();
	private LiferayUserManager userManager = new LiferayUserManager();

	public void addExperiment(ActionRequest actionRequest, ActionResponse actionResponse) throws IOException, PortletException {
		try{
			User currentUser = (User) actionRequest.getAttribute(WebKeys.USER);
			ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY);
			long groupId = themeDisplay.getLayout().getGroupId();
			String method_name = ParamUtil.getString(actionRequest, "method_name");
			String people_institutions = ParamUtil.getString(actionRequest, "people_institutions");
			String demo_tutorial = ParamUtil.getString(actionRequest, "demo_tutorial");
			String experiment_tags = ParamUtil.getString(actionRequest, "experiment_tags");
			String[] attachmentIds = ParamUtil.getParameterValues(actionRequest, "selected-attachment");
			for (int i = 0; i < attachmentIds.length; i++) {
				System.out.println(i+"id="+attachmentIds[i]);
			}

			_log.debug("new dataset_name : " + method_name);
			SessionMessages.add(actionRequest.getPortletSession(), "method-form-success");


			long teamId = roleManager.getTeam(groupId, UPLOAD_DATASET_ROLE_MANAGER_NAME).getTeamId();
			List<GCubeUser> theManagers = userManager.listUsersByTeam(teamId);
			HttpServletRequest request = PortalUtil.getHttpServletRequest(actionRequest);
			boolean result = sendNotificationToUser(
					request, groupId, currentUser, theManagers, method_name, people_institutions, demo_tutorial, attachmentIds, experiment_tags);
			if (result)
				actionResponse.setRenderParameter("mvcPath", "/html/collaboratewithus/view-method-inserted.jsp");
			else
				actionResponse.setRenderParameter("mvcPath", "/html/collaboratewithus/view-method-error.jsp");
		}catch(Exception e){
			SessionErrors.add(actionRequest.getPortletSession(),"view-method-error");
			e.printStackTrace();
		}
	}
	private boolean sendNotificationToUser(HttpServletRequest request, long groupId, User currentUser, List<GCubeUser> theManagers
			, String method_name, String people_institutions, String demo_tutorial, String[] attachmentIds, String experiment_tags) throws Exception {
		String scope = PortalContext.getConfiguration().getCurrentScope(""+groupId);
		_log.info("sendNotificationToUser Scope: " + scope);
		
		String authorizationToken = PortalContext.getConfiguration().getCurrentUserToken(scope, currentUser.getScreenName());
		ScopeProvider.instance.set(scope);
		SecurityTokenProvider.instance.set(authorizationToken);
		Workspace workspace = HomeLibrary.getUserWorkspace(currentUser.getScreenName());

		List<String> recipientIds = new ArrayList<String>();
		List<GenericItemBean> recipients = new ArrayList<GenericItemBean>();
		for (GCubeUser addressee : theManagers) {
			recipients.add(new GenericItemBean(addressee.getUsername(), addressee.getUsername(), addressee.getFullname(), ""));
			recipientIds.add(addressee.getUsername());
		}

		String subject = "A new user uploaded a method or dataset";
		StringBuilder sb = new StringBuilder("Hi, the following dataset/method was shared by ").append(currentUser.getFullName())
				.append(" (").append(currentUser.getEmailAddress()).append(").")
				.append("\n\n").append("Dataset/Method name: ").append(method_name).append("\n")
				.append("\n").append("Involved people and or institutions: ").append(people_institutions).append("\n")
				.append("\n").append("Demo/Tutorial:\n").append(demo_tutorial).append("\n")
				.append("\n").append("Keywords (Comma separated): ").append(experiment_tags).append("\n");

		List<String> attachmentsList = Arrays.asList(attachmentIds);
		String body = sb.toString();
		String messageId = 
				workspace.getWorkspaceMessageManager().
				sendMessageToPortalLogins(subject, body, attachmentsList, recipientIds);

		_log.info("Sending upload method message notification to: " + recipientIds.toString());
		NotificationsManager nm = new ApplicationNotificationsManager(new SocialNetworkingSite(request), scope, new SocialNetworkingUser(
				currentUser.getScreenName(), currentUser.getEmailAddress(), currentUser.getFullName(), ""));
		Thread thread = new Thread(new MessageNotificationsThread(recipients, messageId, subject, body, nm));
		thread.start();

		return (messageId != null);		
	}

}