package eu.eudat.dao.entities;

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

import javax.persistence.TypedQuery;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;

import eu.eudat.dao.databaselayer.service.DatabaseService;
import eu.eudat.entities.Dataset;
import eu.eudat.entities.Project;
import eu.eudat.entities.UserInfo;
import eu.eudat.models.criteria.DataManagementPlanCriteria;
import eu.eudat.models.datasetwizard.DatasetWizardAutocompleteRequest;
import eu.eudat.models.security.Principal;
import eu.eudat.queryable.QueryableList;
import org.hibernate.query.Query;

import eu.eudat.dao.JpaDao;
import eu.eudat.entities.DMP;
import eu.eudat.entities.responses.IDLabelPair;
import eu.eudat.models.dmp.DataManagementPlanTableRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component("dMPDao")
public class DMPDaoImpl implements DMPDao {


	@Autowired
	DatabaseService<DMP> databaseService;

	@Override
	public QueryableList<DMP> getWithCriteria(DataManagementPlanCriteria criteria) {
		QueryableList<DMP> query = databaseService.getQueryable(DMP.class,DMP.getHints());
		if(criteria.getLike()!=null&&!criteria.getLike().isEmpty())query.where((builder, root) -> builder.like(root.get("label"),"%"+criteria.getLike()+"%"));
		if(criteria.getPeriodEnd()!=null)query.where((builder, root) -> builder.lessThan(root.get("created"),criteria.getPeriodEnd()));
		if(criteria.getPeriodStart()!=null)query.where((builder, root) -> builder.greaterThan(root.get("created"),criteria.getPeriodStart()));
		if(criteria.getProjects()!=null&&!criteria.getProjects().isEmpty())query.where(((builder, root) -> root.get("project").in(criteria.getProjectEntities())));
		return query;
	}

	public QueryableList<DMP> getAuthenticated(QueryableList<DMP> query,UserInfo principal) {
		query.where((builder, root) -> builder.or(builder.equal(root.get("creator"),principal),builder.isMember(principal,root.get("users"))));
		return query;
	}

	@Override
	public DMP createOrUpdate(DMP item) {
		return this.databaseService.createOrUpdate(item,DMP.class);
	}

	@Override
	public DMP find(UUID id) {
		return databaseService.getQueryable(DMP.class).where((builder, root) -> builder.equal((root.get("id")),id)).toList().get(0);
	}

	public Long count(){
		return this.databaseService.count(DMP.class);
	}

	@Override
	public QueryableList<DMP> getUserDmps(DatasetWizardAutocompleteRequest datasetWizardAutocompleteRequest, UserInfo userInfo) {
		QueryableList<DMP> query = databaseService.getQueryable(DMP.class).where((builder, root) -> builder.equal(root.get("creator"),userInfo));
		if(datasetWizardAutocompleteRequest.getCriteria().getLike()!=null&&!datasetWizardAutocompleteRequest.getCriteria().getLike().isEmpty()){
			query.where((builder, root) -> builder.like(root.get("label"),"%"+datasetWizardAutocompleteRequest.getCriteria().getLike()+"%"));
		}
		return query;
	}
}