package eu.old.eudat.migration;

import eu.eudat.commons.JsonHandlingService;
import eu.eudat.commons.XmlHandlingService;
import eu.eudat.commons.enums.DescriptionStatus;
import eu.eudat.commons.enums.IsActive;
import eu.eudat.commons.enums.ReferenceFieldDataType;
import eu.eudat.commons.enums.ReferenceSourceType;
import eu.eudat.commons.types.description.*;
import eu.eudat.commons.types.descriptiontemplate.FieldSetEntity;
import eu.eudat.commons.types.descriptiontemplate.fielddata.ReferenceTypeDataEntity;
import eu.eudat.commons.types.dmpblueprint.DefinitionEntity;
import eu.eudat.commons.types.externalfetcher.ExternalFetcherBaseSourceConfigurationEntity;
import eu.eudat.commons.types.referencetype.ReferenceTypeDefinitionEntity;
import eu.eudat.convention.ConventionService;
import eu.eudat.data.*;
import eu.eudat.model.Dmp;
import eu.eudat.model.Reference;
import eu.eudat.model.ReferenceType;
import eu.eudat.query.*;
import eu.old.eudat.data.dao.entities.DatasetDao;
import eu.old.eudat.data.entities.Dataset;
import eu.old.eudat.logic.services.operations.DatabaseRepository;
import eu.old.eudat.models.data.user.components.datasetprofile.Field;
import gr.cite.tools.data.query.QueryFactory;
import gr.cite.tools.exception.MyApplicationException;
import gr.cite.tools.fieldset.BaseFieldSet;
import gr.cite.tools.logging.LoggerService;
import jakarta.persistence.EntityManager;
import jakarta.xml.bind.JAXBException;
import org.json.JSONObject;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.xml.sax.SAXException;

import javax.xml.parsers.ParserConfigurationException;
import java.io.IOException;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZoneOffset;
import java.time.format.DateTimeParseException;
import java.util.*;
import java.util.stream.Collectors;

@Service
public class DatasetMigrationService {

    private static final LoggerService logger = new LoggerService(LoggerFactory.getLogger(DmpDatasetProfileMigrationService.class));
    private final DatabaseRepository databaseRepository;
    private final JsonHandlingService jsonHandlingService;
    private final QueryFactory queryFactory;
    private final XmlHandlingService xmlHandlingService;
    private static final int PageSize = 500;
    private static final boolean TestMode = false;
    private final EntityManager entityManager;
    private final ConventionService conventionService;

    public DatasetMigrationService(DatabaseRepository databaseRepository, JsonHandlingService jsonHandlingService, QueryFactory queryFactory, XmlHandlingService xmlHandlingService, EntityManager entityManager, ConventionService conventionService) {
        this.databaseRepository = databaseRepository;
        this.jsonHandlingService = jsonHandlingService;
        this.queryFactory = queryFactory;
        this.xmlHandlingService = xmlHandlingService;
        this.entityManager = entityManager;
	    this.conventionService = conventionService;
    }

    public void migrate() throws IOException, JAXBException, ParserConfigurationException, InstantiationException, IllegalAccessException, SAXException {
        DatasetDao datasetDao = databaseRepository.getDatasetDao();
        long total = datasetDao.asQueryable().count();
        logger.debug("Migrate Dataset Total : " + total);
        int page = 0;

        Map<UUID, ReferenceTypeDefinitionEntity> referenceTypeDefinitionEntityMap = new HashMap<>();
        List<ReferenceTypeEntity> referenceTypes = this.queryFactory.query(ReferenceTypeQuery.class).collectAs(new BaseFieldSet().ensure(ReferenceType._id).ensure(ReferenceType._definition));
        for (ReferenceTypeEntity referenceType : referenceTypes){
            referenceTypeDefinitionEntityMap.put(referenceType.getId(), this.xmlHandlingService.fromXml(ReferenceTypeDefinitionEntity.class, referenceType.getDefinition()));
        }

        Map<ReferenceKey, ReferenceEntity> referenceMap = new HashMap<>();
        List<ReferenceEntity> references = this.queryFactory.query(ReferenceQuery.class).collectAs(new BaseFieldSet().ensure(Reference._id).ensure(Reference._source).ensure(Reference._type).ensure(Reference._reference));
        for (ReferenceEntity reference : references){
            if (reference.getCreatedById() == null) referenceMap.put(new ReferenceKey(reference), reference);
        }
        
        List<Dataset> items;
        do {
            items = datasetDao.asQueryable().orderBy((builder, root) -> builder.asc(root.get("created"))).orderBy((builder, root) -> builder.asc(root.get("ID"))).skip(page * PageSize).take(PageSize).toList();
            if (items != null && !items.isEmpty()) {
                logger.debug("Migrate Dataset " + page * PageSize + " of " + total);

                List<DmpBlueprintEntity> dmpBlueprints = this.queryFactory.query(DmpBlueprintQuery.class).ids(items.stream().map(x-> x.getDmp().getProfile().getId()).distinct().toList()).collect();
                Map<UUID, DefinitionEntity> dmpBlueprintsMap = new HashMap<>();
                for (DmpBlueprintEntity dmpBlueprint : dmpBlueprints) {
                    DefinitionEntity definitionEntity = this.xmlHandlingService.fromXml(DefinitionEntity.class, dmpBlueprint.getDefinition());
                    dmpBlueprintsMap.put(dmpBlueprint.getId(), definitionEntity);
                }

                List<DmpDescriptionTemplateEntity> dmpDescriptionTemplateEntities = this.queryFactory.query(DmpDescriptionTemplateQuery.class).dmpIds(items.stream().map(x-> x.getDmp().getId()).distinct().toList()).collect();
                List<DescriptionTemplateEntity> descriptionTemplates = this.queryFactory.query(DescriptionTemplateQuery.class).ids(items.stream().map(x-> x.getProfile().getId()).distinct().toList()).collect();
                Map<UUID, UUID> creatorsByDmp = this.queryFactory.query(DmpQuery.class).ids(items.stream().map(x-> x.getDmp().getId()).distinct().toList()).collectAs(new BaseFieldSet().ensure(Dmp._id).ensure(Dmp._creator)).stream().collect(Collectors.toMap(DmpEntity::getId, DmpEntity::getCreatorId));;
                
                Map<UUID, eu.eudat.commons.types.descriptiontemplate.DefinitionEntity> descriptionTemplateDefinitionMap = new HashMap<>();
                for (DescriptionTemplateEntity descriptionTemplateEntity : descriptionTemplates){
                    descriptionTemplateDefinitionMap.put(descriptionTemplateEntity.getId(), this.xmlHandlingService.fromXml(eu.eudat.commons.types.descriptiontemplate.DefinitionEntity.class, descriptionTemplateEntity.getDefinition()));
                }
                for (Dataset item : items) {
                    DefinitionEntity definition = dmpBlueprintsMap.getOrDefault(item.getDmp().getProfile().getId(), null);

                    if (definition == null || definition.getSections() == null || definition.getSections().size() <= item.getDmpSectionIndex()) {
                        logger.error("Migrate Dataset " + item.getId() + " cannot found section id for section  " + item.getDmpSectionIndex());
                        throw  new MyApplicationException("Migrate Dataset " + item.getId() + " cannot found section id for section  " + item.getDmpSectionIndex());
                    }
                    UUID sectionId = definition.getSections().get(item.getDmpSectionIndex()).getId();
                    if (sectionId == null) {
                        logger.error("Migrate Dataset " + item.getId() + " cannot found section id for section  " + item.getDmpSectionIndex());
                        throw  new MyApplicationException("Migrate Dataset " + item.getId() + " cannot found section id for section  " + item.getDmpSectionIndex());
                    }

                    List<DmpDescriptionTemplateEntity> itemDescriptionTemplates = this.getOrCreateDmpDescriptionTemplateEntity(item, sectionId, dmpDescriptionTemplateEntities);
                    
                    if (itemDescriptionTemplates.size() > 1) {
                        logger.error("Migrate Dataset " + item.getId() + " multiple DmpDescriptionTemplateEntity for section  " + item.getDmpSectionIndex());
                        //TODO CLEAN Duplicates dmp, DescriptionTemplate, SectionId
                    }
                    
                    DescriptionEntity data = new DescriptionEntity();
                    data.setId(item.getId());
                    data.setDescription(item.getDescription());
                    if (item.getCreator() != null) {
                        data.setCreatedById(item.getCreator().getId());
                    } else {
                        data.setCreatedById(creatorsByDmp.getOrDefault(item.getDmp().getId(), null));
                    }
                    data.setDmpId(item.getDmp().getId());
                    data.setLabel(item.getLabel());
                    data.setDmpDescriptionTemplateId(itemDescriptionTemplates.getFirst().getId());
                    data.setDescriptionTemplateId(item.getProfile().getId());
                    data.setCreatedAt(item.getCreated() != null ? item.getCreated().toInstant() : Instant.now());
                    data.setUpdatedAt(item.getModified() != null ? item.getModified().toInstant() : Instant.now());
                    if (item.getFinalizedAt() != null)
                        data.setFinalizedAt(item.getFinalizedAt().toInstant());
                    if (item.getStatus() == 99) {
                        data.setIsActive(IsActive.Inactive);
                        data.setStatus(DescriptionStatus.Canceled);
                    } else {
                        data.setIsActive(IsActive.Active);
                        data.setStatus(DescriptionStatus.of(item.getStatus()));
                    }

                    eu.eudat.commons.types.descriptiontemplate.DefinitionEntity descriptionTemplateDefinitionEntity = descriptionTemplateDefinitionMap.getOrDefault(item.getProfile().getId(), null);
                    data.setProperties(this.jsonHandlingService.toJson(this.buildPropertyDefinitionEntity(item, descriptionTemplateDefinitionEntity, referenceTypeDefinitionEntityMap, referenceMap)));

                    if (data.getCreatedById() == null){
                        logger.error("Migration skipped creator not found " + item.getId());
                        throw  new MyApplicationException("Migration skipped creator not found " + item.getId());
                    }
                    
                    this.entityManager.persist(data);
                    this.entityManager.flush();
                }

                page++;
            }
        } while (items != null && !items.isEmpty() && !TestMode);
        throw new MyApplicationException("");
    }
    
    private List<DmpDescriptionTemplateEntity> getOrCreateDmpDescriptionTemplateEntity(Dataset item, UUID sectionId, List<DmpDescriptionTemplateEntity> dmpDescriptionTemplateEntities){
        List<DmpDescriptionTemplateEntity> itemDescriptionTemplates = dmpDescriptionTemplateEntities.stream().filter(x-> x.getDescriptionTemplateGroupId().equals(item.getProfile().getGroupId()) && x.getDmpId().equals(item.getDmp().getId()) && x.getSectionId().equals(sectionId)).toList();
        if (itemDescriptionTemplates.isEmpty()) {
            logger.error("Migrate Dataset " + item.getId() + " cannot found DmpDescriptionTemplateEntity for section  " + item.getDmpSectionIndex());
            if (dmpDescriptionTemplateEntities.stream().anyMatch(x -> x.getDmpId().equals(item.getDmp().getId()) && x.getSectionId().equals(sectionId))) {
                DmpDescriptionTemplateEntity dmpDescriptionTemplateEntity = new DmpDescriptionTemplateEntity();
                dmpDescriptionTemplateEntity.setId(UUID.randomUUID());
                dmpDescriptionTemplateEntity.setDescriptionTemplateGroupId(item.getProfile().getGroupId());
                dmpDescriptionTemplateEntity.setDmpId(item.getDmp().getId());
                dmpDescriptionTemplateEntity.setCreatedAt(item.getCreated() != null ? item.getCreated().toInstant() : Instant.now());
                dmpDescriptionTemplateEntity.setUpdatedAt(item.getModified() != null ? item.getModified().toInstant() : Instant.now());
                dmpDescriptionTemplateEntity.setSectionId(sectionId);
                dmpDescriptionTemplateEntity.setIsActive(IsActive.Active);
                this.entityManager.persist(dmpDescriptionTemplateEntity);
                itemDescriptionTemplates = List.of(dmpDescriptionTemplateEntity);
            } else {
                throw new MyApplicationException("Migrate Dataset " + item.getId() + " cannot found DmpDescriptionTemplateEntity for section  " + item.getDmpSectionIndex());
            }
        }
        return itemDescriptionTemplates;
    }
    
    private PropertyDefinitionEntity buildPropertyDefinitionEntity(Dataset item, eu.eudat.commons.types.descriptiontemplate.DefinitionEntity descriptionTemplateDefinitionEntity, Map<UUID, ReferenceTypeDefinitionEntity> referenceTypeDefinitionEntityMap, Map<ReferenceKey, ReferenceEntity> referenceMap) {
        if (this.conventionService.isNullOrEmpty(item.getProperties())) return null;
        JSONObject jObject = new JSONObject(item.getProperties());
        Map<String, Object> properties = jObject.toMap();

        PropertyDefinitionEntity propertyDefinitionEntity = new PropertyDefinitionEntity();
        propertyDefinitionEntity.setFieldSets(new HashMap<>());
        
        List<FieldSetEntity> fieldSetEntities = descriptionTemplateDefinitionEntity.getAllFieldSets();
        
        for (String key : properties.keySet()) {
            if (key.toLowerCase(Locale.ROOT).trim().startsWith("commentfieldvalue")){
                if (properties.get(key) != null && this.conventionService.isNullOrEmpty(properties.get(key).toString())) { continue; }
                FieldSetEntity currentFieldSet = fieldSetEntities.stream().filter(x-> x.getId().equals(key.trim().substring("commentfieldvalue".length()))).findFirst().orElse(null);
                
                if (currentFieldSet == null) {
                    logger.error("Field set " + key +  " not found for comment " +  properties.get(key).toString());
                    continue;
                }
                
                this.addSimpleCommentField(propertyDefinitionEntity, currentFieldSet, properties.get(key).toString());
            } else {
                if (!key.toLowerCase(Locale.ROOT).trim().startsWith("multiple_")) {
                    FieldSetEntity currentFieldSet = null;
                    eu.eudat.commons.types.descriptiontemplate.FieldEntity currentField = null;
                    for (FieldSetEntity fieldSetEntity : fieldSetEntities) {
                        List<eu.eudat.commons.types.descriptiontemplate.FieldEntity> fieldEntities = fieldSetEntity.getFieldById(key.trim());
                        if (!fieldEntities.isEmpty()) {
                            currentFieldSet = fieldSetEntity;
                            currentField = fieldEntities.getFirst();
                        }
                    }

                    if (currentField == null) {
                        logger.error("Field set not found for field " + key + " " + properties.get(key).toString());
                        continue;
                    }

                    this.addSimpleField(propertyDefinitionEntity, currentFieldSet, currentField, properties, referenceTypeDefinitionEntityMap, referenceMap);
                }
            }
        }

        this.addMultipleField(properties, descriptionTemplateDefinitionEntity, propertyDefinitionEntity, referenceTypeDefinitionEntityMap, referenceMap);
        
        for (PropertyDefinitionFieldSetEntity fieldSetEntity : propertyDefinitionEntity.getFieldSets().values()){
            int newOrdinal = 0;
            for (PropertyDefinitionFieldSetItemEntity propertyDefinitionFieldSetItemEntity : fieldSetEntity.getItems().stream().filter(x-> x.getOrdinal() >= 0).sorted(Comparator.comparingInt(PropertyDefinitionFieldSetItemEntity::getOrdinal)).toList()){
                propertyDefinitionFieldSetItemEntity.setOrdinal(newOrdinal);
                newOrdinal++;
            }
            for (PropertyDefinitionFieldSetItemEntity propertyDefinitionFieldSetItemEntity : fieldSetEntity.getItems().stream().filter(x-> x.getOrdinal() < 0).sorted(Comparator.comparingInt(PropertyDefinitionFieldSetItemEntity::getOrdinal)).toList()){
                propertyDefinitionFieldSetItemEntity.setOrdinal(newOrdinal);
                newOrdinal++;
            }
        }
        return propertyDefinitionEntity;
    }
    
    private void addMultipleField(Map<String, Object> properties, eu.eudat.commons.types.descriptiontemplate.DefinitionEntity descriptionTemplateDefinitionEntity, PropertyDefinitionEntity propertyDefinitionEntity, Map<UUID, ReferenceTypeDefinitionEntity> referenceTypeDefinitionEntityMap, Map<ReferenceKey, ReferenceEntity> referenceMap){
        Map<MultipleFieldKey, Integer> groupOrdinalMapping = new HashMap<>();
        for (String key : properties.keySet()) {
            if (key.trim().toLowerCase(Locale.ROOT).startsWith("multiple_")) {
                String newKey = key.trim().substring("multiple_".length());
                String[] keyParts = newKey.split("_", 4);
                String fieldSetId = "";
                String groupId = "";
                int ordinal = Integer.MIN_VALUE;
                String fieldId = "";
                
                    if (keyParts.length == 4) {
                        fieldSetId = keyParts[0].trim();
                        groupId = keyParts[1].trim();
                        fieldId = keyParts[3].trim();
                    } else if (keyParts.length == 3) {
                        fieldSetId = keyParts[0].trim();
                        groupId = keyParts[1].trim();
                        fieldId = keyParts[2].trim();
                    } else {
                        logger.error("Field group key has invalid format " + key + " " + properties.get(key).toString());
                        continue;
                    }
                try {
                    if (keyParts.length == 4) ordinal = Integer.parseInt(keyParts[2].trim());
                } catch (Exception e){
                    logger.error("Field group key has invalid format " + key + " " + properties.get(key).toString());
                    continue;
                }

                eu.eudat.commons.types.descriptiontemplate.FieldEntity currentField = descriptionTemplateDefinitionEntity.getFieldById(fieldId).stream().findFirst().orElse(null);
                if (currentField == null) {
                    logger.error("Field set not found for field " + key + " " + properties.get(key).toString());
                    continue;
                }

                PropertyDefinitionFieldSetEntity propertyDefinitionFieldSetEntity = propertyDefinitionEntity.getFieldSets().getOrDefault(fieldSetId, null);
                if (propertyDefinitionFieldSetEntity == null) {
                    propertyDefinitionFieldSetEntity = new PropertyDefinitionFieldSetEntity();
                    propertyDefinitionFieldSetEntity.setItems(new ArrayList<>());
                    propertyDefinitionEntity.getFieldSets().put(fieldId, propertyDefinitionFieldSetEntity);
                }
                if (ordinal == Integer.MIN_VALUE) {
                    if (groupOrdinalMapping.containsKey(new MultipleFieldKey(fieldSetId, groupId))){
                        ordinal = groupOrdinalMapping.get(new MultipleFieldKey(fieldSetId, groupId));
                    } else {
                        ordinal = propertyDefinitionFieldSetEntity.getItems().stream().filter(x-> !x.getFields().isEmpty()).map(PropertyDefinitionFieldSetItemEntity::getOrdinal).min(Comparator.comparing(x -> x)).orElse(-1) - 1;
                        ordinal = Math.min(ordinal, -1);
                    }
                }
                
                if (!groupOrdinalMapping.containsKey(new MultipleFieldKey(fieldSetId, groupId))){
                    groupOrdinalMapping.put(new MultipleFieldKey(fieldSetId, groupId), ordinal);
                } else {
                    if (groupOrdinalMapping.get(new MultipleFieldKey(fieldSetId, groupId)) !=  ordinal) throw new MyApplicationException("Invalid multiple key ordinal " + key);
                }

                this.addMultipleField(propertyDefinitionFieldSetEntity, ordinal, currentField, properties, referenceTypeDefinitionEntityMap, referenceMap);
               
            }
        }
    }
    
    private void addMultipleField(PropertyDefinitionFieldSetEntity propertyDefinitionFieldSetEntity, int ordinal, eu.eudat.commons.types.descriptiontemplate.FieldEntity currentField, Map<String, Object> properties, Map<UUID, ReferenceTypeDefinitionEntity> referenceTypeDefinitionEntityMap, Map<ReferenceKey, ReferenceEntity> referenceMap){
        PropertyDefinitionFieldSetItemEntity propertyDefinitionFieldSetItemEntity = propertyDefinitionFieldSetEntity.getItems().stream().filter(x-> x.getOrdinal() == ordinal).findFirst().orElse(null);

        if (propertyDefinitionFieldSetItemEntity == null){
            propertyDefinitionFieldSetItemEntity = new PropertyDefinitionFieldSetItemEntity();
            propertyDefinitionFieldSetItemEntity.setFields(new HashMap<>());
            propertyDefinitionFieldSetItemEntity.setOrdinal(ordinal);
            propertyDefinitionFieldSetEntity.getItems().add(propertyDefinitionFieldSetItemEntity);
        }

        propertyDefinitionFieldSetItemEntity.getFields().put(currentField.getId(), this.buildField(currentField, properties, referenceTypeDefinitionEntityMap, referenceMap));
    }
    
    private void addSimpleField(PropertyDefinitionEntity propertyDefinitionEntity, FieldSetEntity currentFieldSet, eu.eudat.commons.types.descriptiontemplate.FieldEntity currentField, Map<String, Object> properties, Map<UUID, ReferenceTypeDefinitionEntity> referenceTypeDefinitionEntityMap, Map<ReferenceKey, ReferenceEntity> referenceMap){
        PropertyDefinitionFieldSetEntity propertyDefinitionFieldSetEntity = propertyDefinitionEntity.getFieldSets().getOrDefault(currentFieldSet.getId(), null);
        if (propertyDefinitionFieldSetEntity == null) {
            propertyDefinitionFieldSetEntity = new PropertyDefinitionFieldSetEntity();
            propertyDefinitionFieldSetEntity.setItems(new ArrayList<>());
            propertyDefinitionEntity.getFieldSets().put(currentFieldSet.getId(), propertyDefinitionFieldSetEntity);
        }

        PropertyDefinitionFieldSetItemEntity propertyDefinitionFieldSetItemEntity = null;
        if (this.conventionService.isListNullOrEmpty(propertyDefinitionFieldSetEntity.getItems())){
            propertyDefinitionFieldSetItemEntity = new PropertyDefinitionFieldSetItemEntity();
            propertyDefinitionFieldSetItemEntity.setFields(new HashMap<>());
            propertyDefinitionFieldSetItemEntity.setOrdinal(0);
            propertyDefinitionFieldSetEntity.getItems().add(propertyDefinitionFieldSetItemEntity);
        } else {
            propertyDefinitionFieldSetItemEntity = propertyDefinitionFieldSetEntity.getItems().getFirst();
        }

        propertyDefinitionFieldSetItemEntity.getFields().put(currentField.getId(), this.buildField(currentField, properties, referenceTypeDefinitionEntityMap, referenceMap));
    }


    private void addSimpleCommentField(PropertyDefinitionEntity propertyDefinitionEntity, FieldSetEntity currentFieldSet, String comment){
        PropertyDefinitionFieldSetEntity propertyDefinitionFieldSetEntity = propertyDefinitionEntity.getFieldSets().getOrDefault(currentFieldSet.getId(), null);
        if (propertyDefinitionFieldSetEntity == null) {
            propertyDefinitionFieldSetEntity = new PropertyDefinitionFieldSetEntity();
            propertyDefinitionFieldSetEntity.setItems(new ArrayList<>());
            propertyDefinitionEntity.getFieldSets().put(currentFieldSet.getId(), propertyDefinitionFieldSetEntity);
        }

        PropertyDefinitionFieldSetItemEntity propertyDefinitionFieldSetItemEntity = null;
        if (this.conventionService.isListNullOrEmpty(propertyDefinitionFieldSetEntity.getItems())){
            propertyDefinitionFieldSetItemEntity = new PropertyDefinitionFieldSetItemEntity();
            propertyDefinitionFieldSetItemEntity.setFields(new HashMap<>());
            propertyDefinitionFieldSetItemEntity.setOrdinal(0);
            propertyDefinitionFieldSetEntity.getItems().add(propertyDefinitionFieldSetItemEntity);
        } else {
            propertyDefinitionFieldSetItemEntity = propertyDefinitionFieldSetEntity.getItems().getFirst();
        }

        propertyDefinitionFieldSetItemEntity.setComment(comment);
    }
    
    private FieldEntity buildField(eu.eudat.commons.types.descriptiontemplate.FieldEntity currentField, Map<String, Object> properties, Map<UUID, ReferenceTypeDefinitionEntity> referenceTypeDefinitionEntityMap, Map<ReferenceKey, ReferenceEntity> referenceMap){
        FieldEntity fieldEntity = new FieldEntity();
        String textValue = properties.get(currentField.getId()) != null ? properties.get(currentField.getId()).toString() : null;
        if (textValue == null || textValue.isEmpty()) return fieldEntity;
        switch (currentField.getData().getFieldType()){
            case FREE_TEXT, TEXT_AREA, RICH_TEXT_AREA, RADIO_BOX -> fieldEntity.setTextValue(textValue.trim());
            case CHECK_BOX, BOOLEAN_DECISION -> fieldEntity.setTextValue(textValue.trim().toLowerCase(Locale.ROOT));
            case DATE_PICKER -> {
                Instant instant = null;
                if(!this.conventionService.isNullOrEmpty(textValue)) {
                    try {
                        instant = Instant.parse(textValue);
                    } catch (DateTimeParseException ex) {
                        instant = LocalDate.parse(textValue).atStartOfDay().toInstant(ZoneOffset.UTC);
                    }
                }
                fieldEntity.setDateValue(instant);
            }
            case SELECT -> {
                if(!this.conventionService.isNullOrEmpty(textValue)) {
                    String[] valuesParsed = this.jsonHandlingService.fromJsonSafe(String[].class, textValue);
                    if (valuesParsed == null) valuesParsed = this.jsonHandlingService.fromJsonSafe(String[].class, this.cleanAsObjectString(textValue));
                    fieldEntity.setTextListValue(valuesParsed == null ? List.of(textValue) : Arrays.stream(valuesParsed).toList());
                }
            }
            case DATASET_IDENTIFIER, VALIDATION -> {
                if(!this.conventionService.isNullOrEmpty(textValue)) {
                    ExternalIdentifierEntity externalIdentifierEntity = this.jsonHandlingService.fromJsonSafe(ExternalIdentifierEntity.class, textValue);
                    if (externalIdentifierEntity == null) externalIdentifierEntity = this.jsonHandlingService.fromJsonSafe(ExternalIdentifierEntity.class, this.cleanAsObjectString(textValue));
                    if (externalIdentifierEntity == null) throw new MyApplicationException("Could not parse dataset External Identifier : " + textValue);
                    fieldEntity.setExternalIdentifier(externalIdentifierEntity);
                }
            }
            case UPLOAD -> {
                if(!this.conventionService.isNullOrEmpty(textValue)) {
                    Map<String, String> valuesParsed = this.jsonHandlingService.fromJsonSafe(Map.class, textValue);
                    if (valuesParsed == null) {
                        valuesParsed = (Map<String, String>) properties.get(currentField.getId());
                    }
                    if (valuesParsed == null) valuesParsed = this.jsonHandlingService.fromJsonSafe(Map.class, this.cleanAsObjectString(textValue));
                    if (valuesParsed == null) throw new MyApplicationException("Could not parse upload : " + textValue);
                    String id = valuesParsed.getOrDefault("id", null);
                    if (id == null) throw new MyApplicationException("Could not parse upload : " + textValue);
                    fieldEntity.setTextValue(UUID.fromString(id).toString());
                }
            }
            case CURRENCY -> {
                if(!this.conventionService.isNullOrEmpty(textValue)) {
                    Currency currency = this.jsonHandlingService.fromJsonSafe(Currency.class, textValue);
                    if (currency == null) currency = this.jsonHandlingService.fromJsonSafe(Currency.class, this.cleanAsObjectString(textValue));
                    if (currency == null && textValue.toUpperCase(Locale.ROOT).contains("EUR")) {
                        currency = new Currency();
                        currency.setName("Euro");
                        currency.setValue("EUR");
                    }
                    if (currency == null && textValue.toUpperCase(Locale.ROOT).contains("US DOLLAR")) {
                        currency = new Currency();
                        currency.setName("US DOLLAR");
                        currency.setValue("USD");
                    }
                    if (currency == null) throw new MyApplicationException("Could not parse Currency : " + textValue);
                    //TODO: {"name":"Euro","value":"EUR"} what we want to keep ?
                    
                    fieldEntity.setTextValue(currency.getName());
                }
            }
            case TAGS -> {
                if(!this.conventionService.isNullOrEmpty(textValue)) {
                    Tag[] tags = this.jsonHandlingService.fromJsonSafe(Tag[].class, textValue);
                    if (tags == null) tags = this.jsonHandlingService.fromJsonSafe(Tag[].class, this.cleanAsObjectString(textValue));
                    if (tags == null) {
                        Tag tag = this.jsonHandlingService.fromJsonSafe(Tag.class, textValue);
                        if (tag == null) tag = this.jsonHandlingService.fromJsonSafe(Tag.class, this.cleanAsObjectString(textValue));
                        if (tag != null) tags = List.of(tag).toArray(Tag[]::new);
                    }
                    if (tags == null) {
                        //throw new MyApplicationException("Could not parse tag : " + textValue); //TODO
                        logger.error("Could not parse tag : " + textValue);
                        break;
                    }
                    fieldEntity.setTextListValue(Arrays.stream(tags).toList().stream().map(Tag::getName).toList());
                }
            }
            
            case INTERNAL_ENTRIES_DMPS -> throw new MyApplicationException("Found INTERNAL_ENTRIES_DMPS into description");
            case INTERNAL_ENTRIES_DESCRIPTIONS -> throw new MyApplicationException("Found INTERNAL_ENTRIES_DMPS into description");
            case REFERENCE_TYPES -> {
                if(!this.conventionService.isNullOrEmpty(textValue)) { //TODO
                    Map<String, Object>[] references = this.jsonHandlingService.fromJsonSafe(Map[].class, textValue);
                    if (references == null) references = this.jsonHandlingService.fromJsonSafe(Map[].class, this.cleanAsObjectString(textValue));
                    if (references == null) {
                        Map<String, Object> reference = this.jsonHandlingService.fromJsonSafe(Map.class, textValue);
                        if (reference == null) reference = this.jsonHandlingService.fromJsonSafe(Map.class, this.cleanAsObjectString(textValue));
                        if (reference != null) references = List.of(reference).toArray(Map[]::new);
                    }
                    if (references == null){
                        logger.warn("Could not parse reference : " + textValue);
                        //throw new MyApplicationException("Could not parse reference : " + textValue);
                        break;
                    }
                    ReferenceTypeDataEntity referenceTypeDataEntity = (ReferenceTypeDataEntity)currentField.getData();
                    if (referenceTypeDataEntity == null) throw new MyApplicationException("Could not parse description template reference : " + textValue);
                    
                    fieldEntity.setTextListValue(new ArrayList<>());
                    for (Map<String, Object> item : references){
                        ReferenceEntity referenceEntity = this.geReferenceEntity(item, referenceTypeDefinitionEntityMap, referenceTypeDataEntity, textValue, referenceMap);
                        fieldEntity.getTextListValue().add(referenceEntity.getId().toString());
                    }
                }
            }
        }
        return fieldEntity;
    }
    
    private ReferenceEntity geReferenceEntity(Map<String, Object> item, Map<UUID, ReferenceTypeDefinitionEntity> referenceTypeDefinitionEntityMap, ReferenceTypeDataEntity referenceTypeDataEntity, String textValue, Map<ReferenceKey, ReferenceEntity> referenceMap){
        ReferenceTypeDefinitionEntity referenceTypeDefinition = referenceTypeDefinitionEntityMap.getOrDefault(referenceTypeDataEntity.getReferenceTypeId(), null);
        if (referenceTypeDefinition == null) throw new MyApplicationException("Could not find reference type for reference : " + textValue);
        if (this.conventionService.isListNullOrEmpty(referenceTypeDefinition.getSources())) throw new MyApplicationException("Could not find reference source for reference : " + textValue);

        ReferenceEntity data = new ReferenceEntity();
        if (item.containsKey("name"))  data.setLabel((String) item.get("name"));
        if (this.conventionService.isNullOrEmpty(data.getLabel()) && item.containsKey("label"))  data.setLabel((String) item.get("label"));
        if (item.containsKey("abbreviation")) data.setAbbreviation((String) item.get("abbreviation"));
        if (item.containsKey("id")) data.setReference((String)item.get("id"));
        if (item.containsKey("reference")) data.setReference((String)item.get("reference"));
        if (this.conventionService.isNullOrEmpty(data.getReference()) && item.containsKey("pid"))  data.setReference((String)item.get("pid"));
        
        data.setId(UUID.randomUUID());
        data.setCreatedAt(Instant.now());
        data.setUpdatedAt(Instant.now());
        data.setSourceType(ReferenceSourceType.External);
        data.setTypeId(referenceTypeDataEntity.getReferenceTypeId());
        data.setIsActive(IsActive.Active);
        eu.eudat.commons.types.reference.DefinitionEntity definitionEntity = new eu.eudat.commons.types.reference.DefinitionEntity();
        definitionEntity.setFields(new ArrayList<>());
        for (Map.Entry<String, Object> entries : item.entrySet()){
            if (entries.getValue() != null && !entries.getKey().equals("name") && !entries.getKey().equals("label")&& !entries.getKey().equals("abbreviation")
                    && !entries.getKey().equals("id") && !entries.getKey().equals("pid")&& !entries.getKey().equals("source")) {
                eu.eudat.commons.types.reference.FieldEntity field = new eu.eudat.commons.types.reference.FieldEntity();
                field.setCode(entries.getKey());
                field.setDataType(ReferenceFieldDataType.Text);
                field.setValue(entries.getValue().toString());
                definitionEntity.getFields().add(field);
            }
        }
        if (!this.conventionService.isListNullOrEmpty(definitionEntity.getFields())) data.setDefinition(this.xmlHandlingService.toXmlSafe(definitionEntity));


        if (this.conventionService.isNullOrEmpty(data.getLabel())) data.setLabel(data.getReference());
        if (referenceTypeDefinition.getSources().size() == 1) data.setSource(referenceTypeDefinition.getSources().getFirst().getKey());
        else {
            String key = referenceTypeDefinition.getSources().stream().filter(x-> x.getKey().equalsIgnoreCase((String) item.getOrDefault("source", null))).map(ExternalFetcherBaseSourceConfigurationEntity::getKey).findFirst().orElse(null);
            if (this.conventionService.isNullOrEmpty(key)) {
                logger.warn("Select first source  for reference : " + textValue);
                data.setSourceType(ReferenceSourceType.Internal);
                data.setSource(referenceTypeDefinition.getSources().getFirst().getKey());
                //throw new MyApplicationException("Could not find reference source for reference : " + textValue); //TODO
            } else {
                data.setSource(key);
            }
        }
        if (this.conventionService.isNullOrEmpty(data.getReference())) {
            data.setReference(this.queryFactory.query(ReferenceQuery.class).sources(data.getSource()).like(data.getLabel()).typeIds(data.getTypeId()).collectAs(new BaseFieldSet().ensure(Reference._reference, Reference._label))
                    .stream().filter(x-> x.getLabel().equals(data.getLabel())).map(ReferenceEntity::getReference).findFirst().orElse(null));//TODO
        }
        if (this.conventionService.isNullOrEmpty(data.getReference())) {
            logger.warn("Local reference created with random id" + textValue);
            data.setReference(data.getId().toString().replace("-", ""));
            data.setSourceType(ReferenceSourceType.Internal); //TODO
        }
        
        ReferenceEntity existingEntity = referenceMap.getOrDefault(new ReferenceKey(data), null);
        if(existingEntity == null){
            referenceMap.put(new ReferenceKey(data), data);
            this.entityManager.persist(data);
            return data;
        } else {
            return existingEntity;
        }
        
    }
    
    private String cleanAsObjectString(String value){
        value = value.trim().replace("\\", "");
        value = value.trim().replace("[\"{", "[{");
        value = value.trim().replace("}\"]", "}]");
        value = value.trim().replace("}\", \"{", "}, {");
        value = value.trim().replace("}\",\"{", "},{");
    
        while (!this.conventionService.isNullOrEmpty(value) && value.startsWith("\"")) value = value.substring(1);
        while (!this.conventionService.isNullOrEmpty(value) && value.endsWith("\"")) value = value.substring(0, value.length() - 1);
        return value;
    }
    
    public static class Currency{
        private String name;
        private String value;

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public String getValue() {
            return value;
        }

        public void setValue(String value) {
            this.value = value;
        }
    }
    public static class Tag{
        private String id;
        private String name;

        public String getId() {
            return id;
        }

        public void setId(String id) {
            this.id = id;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }
    }
    
    public static class MultipleFieldKey{
        private final String fieldSetId;
        private final String groupKey;

        private final int hashCode;

	    public MultipleFieldKey(String fieldSetId, String groupKey) {
		    this.fieldSetId = fieldSetId;
		    this.groupKey = groupKey;
            this.hashCode = Objects.hash(this.fieldSetId, this.groupKey);
	    }

        public String getFieldSetId() {
            return fieldSetId;
        }

        public String getGroupKey() {
            return groupKey;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o)
                return true;
            if (o == null || getClass() != o.getClass())
                return false;
            MultipleFieldKey that = (MultipleFieldKey) o;
            return Objects.equals(fieldSetId, that.getFieldSetId()) && Objects.equals(groupKey, that.getGroupKey());
        }

        @Override
        public int hashCode() {
            return this.hashCode;
        }
    }

    public static class ReferenceKey {
        private final UUID type;
        private final String source;
        private final String reference;
        private final int hashCode;


        public ReferenceKey(ReferenceEntity reference) {
            this.type = reference.getTypeId();
            this.source = reference.getSource().trim();
            this.reference = reference.getReference().trim();
            hashCode = Objects.hash(this.type, this.source, this.reference);
        }

        public UUID getType() {
            return type;
        }

        public String getSource() {
            return source;
        }

        public String getReference() {
            return reference;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o)
                return true;
            if (o == null || getClass() != o.getClass())
                return false;
            ReferenceKey that = (ReferenceKey) o;
            return Objects.equals(type, that.getType()) && Objects.equals(source, that.getSource()) && Objects.equals(reference, that.getReference());
        }

        @Override
        public int hashCode() {
            return this.hashCode;
        }
    }
}