package eu.eudat.controllers;

import java.util.List;
import java.util.UUID;
import java.util.stream.Collectors;

import javax.transaction.Transactional;

import org.apache.commons.lang3.SerializationUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.util.MultiValueMap;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import eu.eudat.dao.entities.DMPDao;
import eu.eudat.dao.entities.DMPProfileDao;
import eu.eudat.dao.entities.DataRepositoryDao;
import eu.eudat.dao.entities.DatasetDao;
import eu.eudat.dao.entities.DatasetProfileDao;
import eu.eudat.dao.entities.DatasetProfileRulesetDao;
import eu.eudat.dao.entities.DatasetProfileViewstyleDao;
import eu.eudat.dao.entities.OrganisationDao;
import eu.eudat.dao.entities.ProjectDao;
import eu.eudat.dao.entities.RegistryDao;
import eu.eudat.dao.entities.ResearcherDao;
import eu.eudat.dao.entities.ServiceDao;
import eu.eudat.dao.entities.UserInfoDao;
import eu.eudat.entities.DMP;
import eu.eudat.entities.DMPProfile;
import eu.eudat.entities.DataRepository;
import eu.eudat.entities.Dataset;
import eu.eudat.entities.DatasetProfile;
import eu.eudat.entities.DatasetProfileRuleset;
import eu.eudat.entities.Organisation;
import eu.eudat.entities.Project;
import eu.eudat.entities.Registry;
import eu.eudat.entities.Researcher;
import eu.eudat.entities.Service;
import eu.eudat.entities.UserInfo;
import eu.eudat.helpers.Transformers;
import eu.eudat.responses.RestResponse;


@RestController
@CrossOrigin
public class Users  {
	
	@Autowired private DataRepositoryDao dataRepositoryDao;
	@Autowired private DatasetDao datasetDao;
	@Autowired private DatasetProfileDao datasetProfileDao;
	@Autowired private DatasetProfileRulesetDao datasetProfileRulesetDao;
	@Autowired private DatasetProfileViewstyleDao datasetProfileViewstyleDao;
	@Autowired private DMPDao dMPDao;
	@Autowired private DMPProfileDao dMPProfileDao;
	@Autowired private OrganisationDao organisationDao;
	@Autowired private ProjectDao projectDao;
	@Autowired private RegistryDao registryDao;
	@Autowired private ResearcherDao researcherDao;
	@Autowired private ServiceDao serviceDao;
	@Autowired private UserInfoDao userInfoDao;
	
	

	@RequestMapping(method = RequestMethod.GET, value = { "/user/whoami" }, produces="application/json;charset=UTF-8")
	public @ResponseBody ResponseEntity<Object> whoami(){
		
		
		String userID = null;
		try {
			userID = SecurityContextHolder.getContext().getAuthentication().getPrincipal().toString();
		} catch(NullPointerException ex) {
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("You have not logged in. You shouldn't be here");
		}
		
		UserInfo userInfo = userInfoDao.getUserInfo(userID);
		
		
		if(userInfo==null) //this should normally never happer
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("There's no such a user on the system. You shouldn't be here");
		
		
		try {
			
			return ResponseEntity.status(HttpStatus.OK).body(userInfo);
		}
		catch(Exception ex) {
			ex.printStackTrace();
			return new ResponseEntity<>(null, HttpStatus.INTERNAL_SERVER_ERROR);
		}
	}
	
	
	
	
	
	
	
	
	
}