package com.megatim.fdxconsultation.service.impl.consumption;

import com.megatim.fdxcommons.model.pojo.PageData;
import com.megatim.fdxcommons.tools.exceptions.CommonApplicationServerException;
import com.megatim.fdxcommons.tools.exceptions.CommonApplicationValidationException;
import com.megatim.fdxconsultation.core.ifaces.administration.UserManager;
import com.megatim.fdxcommons.model.mappers.MapStructMapper;
import com.megatim.fdxconsultation.model.dtos.reporting.CustomTypeFichierReportConfigurationFromView;
import com.megatim.fdxconsultation.model.administration.User;
import com.megatim.fdxcommons.model.pojo.CriteriaFormRequest;
import com.megatim.fdxcommons.model.referentiel.TypeFichier;
import com.megatim.fdxcommons.tools.exceptions.ApplicationForbidenException;
import com.megatim.fdxcommons.tools.exceptions.CommonRessourceNotFoundException;
import com.megatim.fdxconsultation.core.ifaces.integration.ColumnDefinitionManager;
import com.megatim.fdxconsultation.core.ifaces.helper.DataConsumptionOperations;
import com.megatim.fdxconsultation.tools.context.AppCommonContext;
import com.mgt.rs.security.core.common.AuthenticatedUser;
import com.mgt.rs.security.core.common.SecuredClass;
import java.io.File;
import java.util.List;
import java.util.Optional;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.enterprise.event.Observes;
import javax.inject.Inject;
import javax.ws.rs.Path;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response;
import com.megatim.fdxconsultation.service.ifaces.consumption.DataConsumptionOperationsRS;

/**
 *
 * @author ASUS
 */
@SecuredClass(module = AppCommonContext.MODULE_CONSULTATION_WEB, path = "Consultation des fichiers", description = "Consultation des fichiers")
@Path("consume-typefichier")
public class DataConsumptionOperationsRSImpl implements DataConsumptionOperationsRS {

    @Inject
    private UserManager userManager;

    @AuthenticatedUser
    private User utilisateurConnecte;

    @Inject
    MapStructMapper commonMapper;

    @Inject
    DataConsumptionOperations dataConsumptionOperations;

    @Inject
    ColumnDefinitionManager columnDefinitionManager;

    public DataConsumptionOperationsRSImpl() {
        super();
    }

    public void handleAuthenticationEvent(@Observes @AuthenticatedUser String username) {
        utilisateurConnecte = userManager.recuperUtilisateur(username);
    }

    @Override
    public Response find(HttpHeaders headers, String referentielVersion, String codeTypeFichier, CriteriaFormRequest criteriaFormRequest) {
        stopIfTypeFichierNotExists(referentielVersion, codeTypeFichier);
        stopIfUserNotAllowed(utilisateurConnecte, codeTypeFichier);

        List<Map<String, Object>> datas = dataConsumptionOperations.findByCriteria(referentielVersion, codeTypeFichier, criteriaFormRequest.getCriteria());
        return Response.ok(datas).build();
    }

    @Override
    public Response findWithPagination(HttpHeaders headers, String referentielVersion, String codeTypeFichier, Integer pageNumber, Integer pageSize, CriteriaFormRequest criteriaFormRequest) {
        stopIfTypeFichierNotExists(referentielVersion, codeTypeFichier);
        stopIfUserNotAllowed(utilisateurConnecte, codeTypeFichier);

        PageData datas = dataConsumptionOperations.findByCriteriaWithPagination(referentielVersion, codeTypeFichier, criteriaFormRequest.getCriteria(), pageNumber, pageSize);
        return Response.ok(datas).build();
    }

    @Override
    public Long count(HttpHeaders headers, String referentielVersion, String codeTypeFichier, CriteriaFormRequest criteriaFormRequest) {
        stopIfTypeFichierNotExists(referentielVersion, codeTypeFichier);
        return dataConsumptionOperations.count(referentielVersion, codeTypeFichier, criteriaFormRequest.getCriteria());
    }

    @Override
    public Response getPrintableColumns(HttpHeaders headers, String referentielVersion, String codeTypeFichier) {
        stopIfTypeFichierNotExists(referentielVersion, codeTypeFichier);
        return Response.ok(commonMapper.columnDefinitionListToColumnDefinitionDtoList(dataConsumptionOperations.getPrintableColumns(referentielVersion, codeTypeFichier))).build();
    }

    @Override
    public Response printAll(HttpHeaders headers, String referentielVersion, String codeTypeFichier, CustomTypeFichierReportConfigurationFromView reportConfiguration) {
        stopIfTypeFichierNotExists(referentielVersion, codeTypeFichier);
        stopIfUserNotAllowed(utilisateurConnecte, codeTypeFichier);

        File file = null;
        try {
            reportConfiguration.setTitle("LISTE DES DONNEES POUR LE TYPE DE FICHIER (" + codeTypeFichier + ")");
            file = dataConsumptionOperations.printAll(referentielVersion, codeTypeFichier, reportConfiguration, utilisateurConnecte);
        } catch (CommonApplicationValidationException ex) {
            throw ex;
        } catch (Exception ex) {
            Logger.getLogger(DataConsumptionOperationsRSImpl.class.getName()).log(Level.SEVERE, null, ex);
            throw new CommonApplicationServerException();
        }

        Response.ResponseBuilder response = Response.ok((Object) file);
        response.header("Content-Disposition", "attachment;filename=" + file.getName());
        return response.build();
    }

    private void stopIfUserNotAllowed(User user, String codeTypeFichier) {

        Optional<TypeFichier> optTypeFichier = user.getTypeFichiers().stream().filter(t -> t.getCode().equals(codeTypeFichier)).findFirst();

        if (!optTypeFichier.isPresent()) {
            throw new ApplicationForbidenException("Impossible de continuer la requête car l'utilisateur "
                    + user.getUserName() + " n'a pas accès au typefichier " + codeTypeFichier);
        }
    }

    private void stopIfTypeFichierNotExists(String referentielVersion, String codeTypeFichier) {

        if (columnDefinitionManager.findByReferentielAndTypeFichier(referentielVersion, codeTypeFichier).isEmpty()) {
            throw new CommonRessourceNotFoundException("Structure du typeFichier '" + codeTypeFichier + "' inexistant ou  structure ");
        }
    }
}