package eu.eudat.controllers;

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

import javax.transaction.Transactional;
import javax.validation.Valid;

import eu.eudat.models.criteria.ProjectCriteria;
import eu.eudat.models.external.OrganisationsExternalSourcesModel;
import eu.eudat.models.external.ProjectsExternalSourcesModel;
import eu.eudat.models.external.RegistriesExternalSourcesModel;
import eu.eudat.models.helpers.responses.*;
import eu.eudat.models.project.ProjectCriteriaRequest;
import eu.eudat.models.security.Principal;
import eu.eudat.services.ApiContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.security.core.context.SecurityContextHolder;
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.dao.entities.UserInfoDao;
import eu.eudat.entities.DMP;
import eu.eudat.entities.Project;
import eu.eudat.entities.UserInfo;
import eu.eudat.entities.responses.IDLabelPair;

import eu.eudat.managers.ProjectManager;
import eu.eudat.models.helpers.DataTableData;
import eu.eudat.models.project.ProjectTableRequest;
import eu.eudat.proxy.config.exceptions.HugeResultSet;
import eu.eudat.proxy.config.exceptions.NoURLFound;
import eu.eudat.proxy.fetching.RemoteFetcher;


@RestController
@CrossOrigin
public class Projects  extends  BaseController{

	@Autowired
	public Projects(ApiContext apiContext){
		super(apiContext);
	}
	
	@RequestMapping(method = RequestMethod.POST, value = { "/projects/getPaged" }, consumes = "application/json", produces="application/json")
	public @ResponseBody ResponseItem<DataTableData<eu.eudat.models.project.Project>> getPaged(@Valid @RequestBody ProjectTableRequest projectTableRequest,Principal principal) {
		try {
			DataTableData<eu.eudat.models.project.Project> dataTable = new ProjectManager().getPaged(this.getApiContext().getDatabaseRepository().getProjectDao(), projectTableRequest);
			return new ResponseItem<DataTableData<eu.eudat.models.project.Project>>().payload(dataTable).status(HttpStatus.OK);

		} catch (Exception ex) {			
			ex.printStackTrace();
			return new ResponseItem<DataTableData<eu.eudat.models.project.Project>>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}
	
	@RequestMapping(method = RequestMethod.GET, value = { "/projects/getSingle/{id}" }, produces="application/json")
	public @ResponseBody ResponseItem<eu.eudat.models.project.Project> getPaged(@PathVariable String id,Principal principal) {
		try {
			eu.eudat.models.project.Project project = new ProjectManager().getSingle(this.getApiContext().getDatabaseRepository().getProjectDao(), id);
			return new ResponseItem<eu.eudat.models.project.Project>().payload(project).status(HttpStatus.OK);
		} catch (Exception ex) {			
			ex.printStackTrace();
			return new ResponseItem<eu.eudat.models.project.Project>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}
	
	
	@Transactional
	@RequestMapping(method = RequestMethod.POST, value = { "/projects/createOrUpdate" }, consumes = "application/json", produces="application/json")
	public @ResponseBody ResponseItem<eu.eudat.entities.Project> addProject(@Valid @RequestBody eu.eudat.models.project.Project project, Principal principal) {
		try {
			ProjectManager.createOrUpdate(this.getApiContext().getDatabaseRepository().getProjectDao(),this.getApiContext().getDatabaseRepository().getUserInfoDao(),project,principal);
			return new ResponseItem<eu.eudat.entities.Project>().status(HttpStatus.OK);
		}catch (Exception ex){
			return new ResponseItem<eu.eudat.entities.Project>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}


	@Transactional
	@RequestMapping(method = RequestMethod.DELETE, value = { "/projects/inactivate/{id}" }, consumes = "application/json", produces="application/json")
	public @ResponseBody ResponseItem<eu.eudat.entities.Project> inactivate(@PathVariable String id,Principal principal) {
		try {
			Project project = new ProjectManager().inactivate(this.getApiContext().getDatabaseRepository().getProjectDao(),id);
			return new ResponseItem<eu.eudat.entities.Project>().status(HttpStatus.OK);
		}catch (Exception ex){
			return new ResponseItem<eu.eudat.entities.Project>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}


	@RequestMapping(method = RequestMethod.POST, value = { "/projects/getWithExternal" }, consumes = "application/json", produces="application/json")
	public @ResponseBody ResponseItem<List<eu.eudat.models.project.Project>> getWithExternal(@RequestBody ProjectCriteriaRequest projectCriteria,Principal principal) {
		try {
			List<eu.eudat.models.project.Project> dataTable = new ProjectManager().getCriteriaWithExternal(this.getApiContext().getDatabaseRepository().getProjectDao(), projectCriteria,this.getApiContext().getRemoteFetcher());
			return new ResponseItem<List<eu.eudat.models.project.Project>>().payload(dataTable).status(HttpStatus.OK);
		} catch (Exception ex) {
			ex.printStackTrace();
			return new ResponseItem<List<eu.eudat.models.project.Project>>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}

	@RequestMapping(method = RequestMethod.POST, value = { "/projects/get" }, consumes = "application/json", produces="application/json")
	public @ResponseBody ResponseItem<List<eu.eudat.models.project.Project>> get(@RequestBody ProjectCriteriaRequest projectCriteria,Principal principal) {
		try {
			List<eu.eudat.models.project.Project> dataTable = new ProjectManager().getCriteria(this.getApiContext().getDatabaseRepository().getProjectDao(), projectCriteria,this.getApiContext().getRemoteFetcher());
			return new ResponseItem<List<eu.eudat.models.project.Project>>().payload(dataTable).status(HttpStatus.OK);
		} catch (Exception ex) {
			ex.printStackTrace();
			return new ResponseItem<List<eu.eudat.models.project.Project>>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}


	/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
	
	@RequestMapping(method = RequestMethod.GET, value = { "/external/projects" }, produces="application/json")
	public @ResponseBody ResponseItem<ProjectsExternalSourcesModel> listExternalProjects(@RequestParam(value="query", required=false) String query ,Principal principal){
		try {
			List<Map<String,String>> remoteRepos = this.getApiContext().getRemoteFetcher().getProjects(query);
			ProjectsExternalSourcesModel projectsExternalSourcesModel = new ProjectsExternalSourcesModel().fromExternalItem(remoteRepos);
			return new ResponseItem<ProjectsExternalSourcesModel>().payload(projectsExternalSourcesModel).status(HttpStatus.OK);
		}
		catch(NoURLFound ex) {
			return new ResponseItem<ProjectsExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message("External Url Not Found");
		}
		catch(HugeResultSet ex) {
			return new ResponseItem<ProjectsExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message("Huge Result Set");
		}catch (Exception ex){
			return new ResponseItem<ProjectsExternalSourcesModel>().status(HttpStatus.BAD_REQUEST).message(ex.getMessage());
		}
	}
	

	// MANAGE PROJECT(S)
	
//	@RequestMapping(method = RequestMethod.GET, value = { "/projects" }, produces="application/json")
//	public @ResponseBody ResponseEntity<List<UUID>> listProjects(){
//		try {
//			List<UUID> allIDs = projectDao.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 = { "/projects/{id}" }, produces="application/json")
//	public @ResponseBody ResponseEntity<Project> getProject(@PathVariable("id") String id) {
//		try {
//			Project project = projectDao.read(UUID.fromString(id));
//
//			System.out.println(project.getId().toString());
//
//			return ResponseEntity.status(HttpStatus.OK).body(project);
//		}
//		catch(Exception ex) {
//			return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(null);
//		}
//	}
//
//
//	@RequestMapping(method = RequestMethod.GET, value = { "/project/listAllLabelIDs" }, produces="application/json")
//	public @ResponseBody ResponseEntity<List<IDLabelPair>> listLabelIds(){
//		try {
//			List<IDLabelPair> allIDs = projectDao.listAllIDsLabels();
//			return ResponseEntity.status(HttpStatus.OK).body(allIDs);
//		}
//		catch(Exception ex) {
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
//		}
//	}
//
//
//	@RequestMapping(method = RequestMethod.GET, value = { "/project/getAll" }, produces="application/json")
//	public @ResponseBody ResponseEntity<Object> getAllProjects(){
//		try {
//			List<Project> allProjects = projectDao.getAll();
//			return ResponseEntity.status(HttpStatus.OK).body(allProjects);
//		}
//		catch(Exception ex) {
//			return new ResponseEntity<>(null, HttpStatus.INTERNAL_SERVER_ERROR);
//		}
//	}
//
//
//
//	@Transactional
//	@RequestMapping(method = RequestMethod.POST, value = { "/project/create" }, consumes = "application/json", produces="application/json")
//	public @ResponseBody ResponseEntity<Project> createProject(@RequestBody Project project) {
//		Project createdProject = projectDao.update(project);
//		return ResponseEntity.status(HttpStatus.CREATED).body(createdProject);
//	}
//
//
//
//	@RequestMapping(method = RequestMethod.POST, value = { "/project/update" }, consumes = "application/json", produces="application/json")
//	public @ResponseBody ResponseEntity<Project> updateProject(@RequestBody Project project) {
//		Project updatedProject = projectDao.update(project);
//		return ResponseEntity.status(HttpStatus.CREATED).body(updatedProject);
//	}
//
//
//	@RequestMapping(method = RequestMethod.POST, value = { "/project/delete" }, consumes = "application/json", produces="application/json")
//	public @ResponseBody ResponseEntity<Project> delete(@RequestBody Project project) {
//
//		Project p = new Project();
//		p.setId(project.getId());
//		try {
//			projectDao.delete(p);
//			return ResponseEntity.status(HttpStatus.CREATED).body(null);
//		} catch (Exception e) {
//			e.printStackTrace();
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
//		}
//
//	}
//
//
//
//	@RequestMapping(method = RequestMethod.POST, value = { "/project/softdelete" }, consumes = "application/json", produces="application/json")
//	public @ResponseBody ResponseEntity<Object> softDelete(@RequestBody Project project) {
//
//		project.setStatus(new Short("-1"));
//
//		try {
//			projectDao.update(project);
//			return ResponseEntity.status(HttpStatus.CREATED).body(null);
//		} catch (Exception e) {
//			e.printStackTrace();
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
//		}
//
//	}
//
//
//	@Transactional
//	@RequestMapping(method = RequestMethod.POST, value = { "/project/getdmps" }, consumes = "application/json", produces="application/json")
//	public @ResponseBody ResponseEntity<Object> getProjectDmps(@RequestBody Project project) {
//		try {
//			Set<DMP> dmps = projectDao.read(project.getId()).getDmps();
//			return ResponseEntity.status(HttpStatus.CREATED).body(dmps);
//		} catch (Exception e) {
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
//		}
//	}
//
//
//
//	////////////////////////////////
//	//// USER - RELATED ACTIONS ////
//	////////////////////////////////
//
//
//	@RequestMapping(method = RequestMethod.GET, value = { "/project/getofuser" }, produces="text/plain")
//	public @ResponseBody ResponseEntity<Object> getProjectsOfUser(){
//
//		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.read(UUID.fromString(userID));
//
//		if(userInfo==null) //this should normally never happen
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("There's no such a user on the system. You shouldn't be here");
//
//
//		try {
//			List<Project> userProjects = projectDao.getProjectsOfUser(userID);
//			return ResponseEntity.status(HttpStatus.OK).body(userProjects);
//		}
//		catch(Exception ex) {
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
//		}
//
//
//		/*
//		 * OLD ONE
//		Map<UUID, Researcher> userProjects = new HashMap<UUID, Researcher>();
//
//		userInfo.getDmps().forEach( dmp -> {
//			Researcher proj = dmp.getProject();
//			userProjects.put(proj.getId(), proj);
//		});
//
//		try {
//			return ResponseEntity.status(HttpStatus.OK).body(SerializerProvider.toJson(userProjects.values()));
//		}
//		catch(Exception ex) {
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("Serialization issue: "+ex.getMessage());
//		}
//		*/
//
//	}
//
//	@Transactional
//	@RequestMapping(method = RequestMethod.POST, value = { "/project/createofuser" }, produces="text/plain", consumes = "application/json")
//	public @ResponseBody ResponseEntity<Project> createProjectOfUser(@RequestBody Project project){
//
//
//		String userID = null;
//		try {
//			userID = SecurityContextHolder.getContext().getAuthentication().getPrincipal().toString();
//		} catch(NullPointerException ex) {
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
//		}
//
//		UserInfo userInfo = userInfoDao.read(UUID.fromString(userID));
//
//
//		if(userInfo==null) //this should normally never happer
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
//
//		try {
//
//			project.setId(null);
//			project.setStatus(new Short("0"));
//			project.setCreationUser(userInfo);
//			project.setCreated(new Date());
//			project.setModified(new Date());
//
//			Project newproj = projectDao.create(project);
//
////			DMP newdmp = new DMP();
////			newdmp.setId(null);
////			newdmp.setLabel("Auto-Generated");
////			newdmp.setCreated(new Date());
////			newdmp.setVersion(1);
////			newdmp.setStatus(new Short("0"));
////			newdmp.setProject(newproj);
////
////			Set<UserInfo> users = new HashSet<UserInfo>();
////			users.add(userInfo);
////			newdmp.setUsers(users);
////
////			newdmp = dMPDao.create(newdmp);
//
//			return ResponseEntity.status(HttpStatus.OK).body(newproj);
//		}
//		catch(Exception ex) {
//			ex.printStackTrace();
//			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
//		}
//
//	}
//
//	@Transactional
//	@RequestMapping(method = RequestMethod.POST, value = { "/project/updateofuser" }, produces="text/plain")
//	public @ResponseBody ResponseEntity<Object> updateProjectOfUser(@RequestBody Researcher project){
//		
//		if(project.getId()==null)
//			return ResponseEntity.status(HttpStatus.NOT_MODIFIED).body("Cannot update, id was null");
//		return setProject(project);
//		
//	}
	
	
	
	
	
}