D-Net

package eu.dnetlib.repo.manager.service;

import eu.dnetlib.api.functionality.ValidatorServiceException;

import eu.dnetlib.domain.data.RepositoryInterface;

import eu.dnetlib.domain.functionality.validator.*;

import eu.dnetlib.repo.manager.domain.Constants;

import eu.dnetlib.repo.manager.domain.InterfaceInformation;

import eu.dnetlib.repo.manager.domain.ValidationServiceException;

import eu.dnetlib.repo.manager.utils.CrisValidatorUtils;

import eu.dnetlib.repo.manager.utils.OaiTools;

import gr.uoa.di.driver.util.ServiceLocator;

import org.apache.log4j.Logger;

import org.eurocris.openaire.cris.validator.model.Job;

import org.eurocris.openaire.cris.validator.service.JobExecutor;

import org.eurocris.openaire.cris.validator.service.MapJobDao;

import org.json.JSONException;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.http.HttpStatus;

import org.springframework.http.ResponseEntity;

import org.springframework.security.access.prepost.PreAuthorize;

import org.springframework.security.core.context.SecurityContextHolder;

import org.springframework.stereotype.Service;

import javax.annotation.PostConstruct;

import javax.annotation.Resource;

import java.util.*;

import java.util.concurrent.ConcurrentHashMap;

import java.util.stream.Collectors;

@Service("validatorService")

public class ValidatorServiceImpl implements ValidatorService {

    @Autowired

    private MonitorServiceImpl monitorApi;

    @Autowired

    private RepositoryService repositoryService;

    @Resource(name = "validatorServiceLocator")

    private ServiceLocator<eu.dnetlib.api.functionality.ValidatorService> validatorServiceLocator;

    private eu.dnetlib.api.functionality.ValidatorService getValidationService() {

        return this.validatorServiceLocator.getService();

    }

    public ServiceLocator<eu.dnetlib.api.functionality.ValidatorService> getValidatorServiceLocator() {

        return validatorServiceLocator;

    }

    public void setValidatorServiceLocator(ServiceLocator<eu.dnetlib.api.functionality.ValidatorService> validatorServiceLocator) {

        this.validatorServiceLocator = validatorServiceLocator;

    }

    private Map<String, List<RuleSet>> rulesetMap = new ConcurrentHashMap<String, List<RuleSet>>();

    private static final Logger LOGGER = Logger

            .getLogger(ValidatorServiceImpl.class);

    @Autowired

    private EmailUtils emailUtils;

    @Autowired

    private JobExecutor crisValidatorExecutor;

    @Autowired

    private MapJobDao crisJobs;

    @PostConstruct

    private void loadRules(){

        LOGGER.debug("PostConstruct method! Load rules!");

        try {

            for (RuleSet ruleSet : getValidationService().getRuleSets()) {

                if (ruleSet.getVisibility() != null && ruleSet.getVisibility().contains("development")) {

                    String key = "";

                    if (ruleSet.getGuidelinesAcronym().matches("^openaire[1-9].0_data$"))

                        key = Constants.VALIDATION_MODE_DATA;

                    else if (ruleSet.getGuidelinesAcronym().matches("^openaire[1-9].0$") || ruleSet.getGuidelinesAcronym().equals("driver"))

                        key = Constants.VALIDATION_MODE_LITERATURE;

                    else if (ruleSet.getGuidelinesAcronym().matches("^openaire[1-9].0_cris$"))

                        key = Constants.VALIDATION_MODE_CRIS;

                    else if (ruleSet.getGuidelinesAcronym().matches(".*fair$"))

                        key = Constants.VALIDATION_MODE_FAIR;

                    if (rulesetMap.containsKey(key))

                        rulesetMap.get(key).add(ruleSet);

                    else {

                        List<RuleSet> ruleSets = new ArrayList<RuleSet>();

                        ruleSets.add(ruleSet);

                        rulesetMap.put(key, ruleSets);

                    }

                }

            }

            /////////////////////////////////////////////////////////////////////////////////////////

            // FIXME: this is a hack for CRIS Jan Dvorak Validator, should be implemented properly //

            /////////////////////////////////////////////////////////////////////////////////////////

            int ruleId = -1000;

            Rule rule = new Rule();

            rule.setType("cris");

            rule.setName("CRIS Rules");

            rule.setId(ruleId);

            rule.setMandatory(true);

            RuleSet crisRuleSet = new RuleSet();

            crisRuleSet.setContentRulesIds(Collections.singleton(ruleId));

            crisRuleSet.setContentRules(Collections.singletonList(rule));

            crisRuleSet.setUsageRulesIds(Collections.singleton(ruleId));

            crisRuleSet.setUsageRules(Collections.singletonList(rule));

            crisRuleSet.setId(-1);

            crisRuleSet.setDescription("Validates using the CRIS Validator implementation");

            crisRuleSet.setName("CRIS Validation");

            String crisKey = Constants.VALIDATION_MODE_CRIS;

            if (rulesetMap.containsKey(crisKey))

                rulesetMap.get(crisKey).add(crisRuleSet);

            else {

                List<RuleSet> ruleSets = new ArrayList<RuleSet>();

                ruleSets.add(crisRuleSet);

                rulesetMap.put(crisKey, ruleSets);

            }

            /////////////////////////////////////////////////////////////////////////////////////////

            /////////////////////////////////////////////////////////////////////////////////////////

        } catch (ValidatorServiceException e) {

            LOGGER.error(e);

        }

    }

    @Override

    @PreAuthorize("hasAuthority('REGISTERED_USER') and #jobForValidation.userEmail == authentication.userInfo.email")

    public JobForValidation submitJobForValidation(JobForValidation jobForValidation) throws ValidatorServiceException {

        LOGGER.debug("Submit job for validation with id : " + jobForValidation.getDatasourceId());

        try {

            emailUtils.sendSubmitJobForValidationEmail(SecurityContextHolder.getContext().getAuthentication(),jobForValidation);

            /////////////////////////////////////////////////////////////////////////////////////////

            // FIXME: this is a hack for CRIS Jan Dvorak Validator, should be implemented properly //

            /////////////////////////////////////////////////////////////////////////////////////////

            if (jobForValidation.getSelectedContentRules()!=null && jobForValidation.getSelectedContentRules().size() == 1 &&

                    jobForValidation.getSelectedContentRules().contains(-1000)) {

                crisValidatorExecutor.submit(jobForValidation.getBaseUrl(), jobForValidation.getUserEmail());

            } else {

                this.getValidationService().submitValidationJob(jobForValidation);

            }

            /////////////////////////////////////////////////////////////////////////////////////////

            /////////////////////////////////////////////////////////////////////////////////////////

//            this.getValidationService().submitValidationJob(jobForValidation);

        } catch (ValidatorServiceException e) {

            LOGGER.debug("Exception on submitJobForValidation" , e);

            emailUtils.reportException(e);

            throw e;

        } catch (Exception e) {

            LOGGER.error(e);

        }

        return jobForValidation;

    }

    @Override

    @PreAuthorize("hasAuthority('REGISTERED_USER') and #email == authentication.userInfo.email")

    public ResponseEntity<Object> reSubmitJobForValidation(String email,

                                                           String jobId) throws JSONException, ValidatorServiceException {

        LOGGER.debug("Resubmit validation job with id : " + jobId);

        StoredJob job = monitorApi.getJobSummary(jobId, "all");

        Set<Integer> contentRules = new HashSet<Integer>();

        Set<Integer> usageRules = new HashSet<Integer>();

        RuleSet ruleSet = null;

        for (List<RuleSet> ruleSets : this.rulesetMap.values()) {

            for (RuleSet rSet : ruleSets) {

                if (rSet.getName().equalsIgnoreCase("CRIS Validation")) {

                    crisValidatorExecutor.submit(job.getBaseUrl(), job.getUserEmail());

                    return new ResponseEntity<>("OK",HttpStatus.OK);

                } else if(rSet.getGuidelinesAcronym().equals(job.getDesiredCompatibilityLevel())){

                    ruleSet = rSet;

                    break;

                }

            }

        }

        if (ruleSet != null){

            for (int ruleId : job.getRules()) {

                if (ruleSet.getContentRulesIds().contains(ruleId))

                    contentRules.add(ruleId);

                else if (ruleSet.getUsageRulesIds().contains(ruleId))

                    usageRules.add(ruleId);

            }

        }

        if (!contentRules.isEmpty())

            job.setSelectedContentRules(contentRules);

        if (!usageRules.isEmpty())

            job.setSelectedUsageRules(usageRules);

        this.submitJobForValidation(job);

        return new ResponseEntity<>("OK",HttpStatus.OK);

    }

    @Override

    public List<RuleSet> getRuleSets(String mode) {

        LOGGER.info("Getting rulesets for mode: " + mode);

        return rulesetMap.get(mode);

    }

    @Override

    public List<String> getSetsOfRepository(String url) {

        LOGGER.debug("Getting sets of repository with url : " + url);

        try {

            return OaiTools.getSetsOfRepo(url);

        } catch (Exception e) {

            LOGGER.debug("Exception on getSetsOfRepository" , e);

            emailUtils.reportException(e);

        }

        return null;

    }

    @Override

    public boolean identifyRepo(String url) {

        LOGGER.debug("Identify repository with url : " + url);

        try {

            return OaiTools.identifyRepository(url);

        } catch (Exception e) {

            LOGGER.error("Error while identifying repository with url: " + url, e);

            emailUtils.reportException(e);

            return false;

        }

    }

    @Override

    public RuleSet getRuleSet(String acronym) {

        LOGGER.debug("Getting ruleset with acronym : " + acronym);

        RuleSet ruleSet = null;

        try {

            for (List<RuleSet> ruleSets : this.rulesetMap.values()) {

                for (RuleSet rSet : ruleSets)

                    if (rSet.getGuidelinesAcronym().equals(acronym)) {

                        ruleSet = rSet;

                        break;

                    }

            }

            return ruleSet;

        } catch (Exception e) {

            LOGGER.error("Error getting ruleset", e);

            emailUtils.reportException(e);

            return null;

        }

    }

    @Override

    @PreAuthorize("hasAuthority('REGISTERED_USER')")

    public List<StoredJob> getStoredJobsNew(String user,

                                            String jobType,

                                            String offset,

                                            String limit,

                                            String dateFrom,

                                            String dateTo,

                                            String validationStatus ) throws ValidatorServiceException {

//        return getValidationService().getStoredJobsNew(user, jobType, Integer.parseInt(offset), Integer.parseInt(limit), dateFrom, dateTo, validationStatus);

        List<StoredJob> jobs = getValidationService().getStoredJobsNew(user, jobType, Integer.parseInt(offset), Integer.parseInt(limit), dateFrom, dateTo, validationStatus);

        /////////////////////////////////////////////////////////////////////////////////////////

        // FIXME: this is a hack for CRIS Jan Dvorak Validator, should be implemented properly //

        /////////////////////////////////////////////////////////////////////////////////////////

        if (jobs == null) {

            jobs = new ArrayList<>();

        }

        List<Job> cj = crisJobs.getJobs(user);

        for (Job job : cj) {

            jobs.add(CrisValidatorUtils.convertJobToStoredJob(job));

        }

        /////////////////////////////////////////////////////////////////////////////////////////

        /////////////////////////////////////////////////////////////////////////////////////////

        return jobs;

    }

    @Override

    public int getStoredJobsTotalNumberNew(String user, String jobType, String validationStatus) throws  ValidatorServiceException {

        return getValidationService().getStoredJobsTotalNumberNew(user, jobType, validationStatus);

    }

    @Override

    public InterfaceInformation getInterfaceInformation(String baseUrl) throws ValidationServiceException {

        try {

            LOGGER.debug("Getting interface information with url: " + baseUrl);

            InterfaceInformation interfaceInformation = new InterfaceInformation();

            interfaceInformation.setIdentified(this.identifyRepo(baseUrl));

            if (interfaceInformation.isIdentified())

                interfaceInformation.setSets(this.getSetsOfRepository(baseUrl));

            return interfaceInformation;

        } catch (Exception e) {

            LOGGER.error("Error getting interface information with url: " + baseUrl, e);

            emailUtils.reportException(e);

            throw new ValidationServiceException("login.generalError", ValidationServiceException.ErrorCode.GENERAL_ERROR);

        }

    }

    @Override

    public List<StoredJob> getJobsSummary(String repoId, int limit) throws JSONException, ValidatorServiceException {

        return getValidationService().getJobSummary(repositoryService.getRepositoryInterface(repoId).stream().map(RepositoryInterface::getBaseUrl).collect(Collectors.toList()),limit);

    }

}