package eu.eudat.controllers;

import java.util.List;
import java.util.Map;
import java.util.UUID;

import javax.transaction.Transactional;

import eu.eudat.entities.Researcher;
import eu.eudat.models.external.ResearchersExternalSourcesModel;
import eu.eudat.models.external.ServiceExternalSourcesModel;
import eu.eudat.models.helpers.responses.ResponseItem;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
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 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.proxy.config.exceptions.HugeResultSet;
import eu.eudat.proxy.config.exceptions.NoURLFound;
import eu.eudat.proxy.fetching.RemoteFetcher;


@RestController
@CrossOrigin
public class Researchers  {
	
	@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 RemoteFetcher remoteFetcher;
	
	
	@RequestMapping(method = RequestMethod.GET, value = { "/external/researchers" }, produces="application/json")
	public @ResponseBody ResponseItem<ResearchersExternalSourcesModel> listExternalResearchers(@RequestParam(value="query", required=false) String query ){
		try {
			List<Map<String,String>> remoteRepos = remoteFetcher.getResearchers(query);
			ResearchersExternalSourcesModel researchersExternalSourcesModel = new ResearchersExternalSourcesModel().fromExternalItem(remoteRepos);
			return new ResponseItem<ResearchersExternalSourcesModel>().payload(researchersExternalSourcesModel).status(HttpStatus.OK);
		}
		catch(NoURLFound ex) {
			return new ResponseItem<ResearchersExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message("External Url Not Found");
		}
		catch(HugeResultSet ex) {
			return new ResponseItem<ResearchersExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message("Huge Result Set");
		}catch (Exception ex){
			return new ResponseItem<ResearchersExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}
	
	
	// MANAGE RESEARCHER(S)

	@RequestMapping(method = RequestMethod.GET, value = { "/researchers" })
	public @ResponseBody ResponseEntity<List<UUID>> listResearchers(){
		try {
			List<UUID> allIDs = researcherDao.listAllIDs();
			return ResponseEntity.status(HttpStatus.OK).body(allIDs);
		}
		catch(Exception ex) {
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
		}
	}
	
	
	@RequestMapping(method = RequestMethod.GET, value = { "/researchers/{id}" })
	public @ResponseBody ResponseEntity<Researcher> getResearchers(@PathVariable("id") String id) {
		try {
			Researcher researcher = researcherDao.read(UUID.fromString(id));
			return ResponseEntity.status(HttpStatus.OK).body(researcher);
		}
		catch(Exception ex) {
			return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(null);
		}
	}
	
	@RequestMapping(method = RequestMethod.GET, value = { "/researcher/getByEmail" }, produces="application/json")
	public @ResponseBody ResponseEntity<Researcher> getResearcherByEmail(@RequestParam("email") String email){
		try {
			Researcher researcher = researcherDao.getResearcherByEmail(email);
			return ResponseEntity.status(HttpStatus.OK).body(researcher);
		}
		catch(Exception ex) {
			return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(null);
		}
		
	}
	

	@RequestMapping(method = RequestMethod.GET, value = { "/researcher/getAll" }, produces="application/json")
	public @ResponseBody ResponseEntity<List<Researcher>> getAllResearchers(){
		try {
			List<Researcher> allResearchers = researcherDao.getAll();
			
			return ResponseEntity.status(HttpStatus.OK).body(allResearchers);
			
		}
		catch(Exception ex) {
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
		}
	}
	
	
	@Transactional
	@RequestMapping(method = RequestMethod.POST, value = { "/researcher/create" }, consumes = "application/json", produces="application/json")
	public @ResponseBody ResponseEntity<Researcher> setResearcher(@RequestBody Researcher researcher) {
		Researcher createdResearcher = researcherDao.update(researcher);
		try {
			return ResponseEntity.status(HttpStatus.CREATED).body(createdResearcher);
		} catch (Exception e) {
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
		}	
	}
	
	
	@RequestMapping(method = RequestMethod.POST, value = { "/researcher/delete" }, consumes = "application/json", produces="text/plain")
	public @ResponseBody ResponseEntity<Object> delete(@RequestBody Researcher researcher) {
		
		Researcher res = new Researcher();
		res.setId(researcher.getId());
		try {
			researcherDao.delete(res);
			return ResponseEntity.status(HttpStatus.CREATED).body("{\"msg\":\"Deleted researcher!\"}");
		} catch (Exception e) {
			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("{\"msg\":\"Could not delete researcher!\"}");
		}
		
	}
	
	
	
	
}