package eu.eudat.model.builder.filetransformer;

import com.fasterxml.jackson.core.JsonProcessingException;
import eu.eudat.authorization.AuthorizationFlags;
import eu.eudat.commons.JsonHandlingService;
import eu.eudat.commons.XmlHandlingService;
import eu.eudat.commons.types.dmpblueprint.*;
import eu.eudat.convention.ConventionService;
import eu.eudat.data.DescriptionTemplateEntity;
import eu.eudat.data.DmpBlueprintEntity;
import eu.eudat.file.transformer.enums.DmpBlueprintExtraFieldDataType;
import eu.eudat.file.transformer.enums.DmpBlueprintFieldCategory;
import eu.eudat.file.transformer.enums.DmpBlueprintSystemFieldType;
import eu.eudat.file.transformer.models.descriptiontemplate.DescriptionTemplateFileTransformerModel;
import eu.eudat.file.transformer.models.dmpblueprint.DmpBlueprintFileTransformerModel;
import eu.eudat.file.transformer.models.dmpblueprint.definition.*;
import eu.eudat.model.dmpblueprintdefinition.*;
import eu.eudat.query.DescriptionTemplateQuery;
import eu.eudat.query.DmpBlueprintQuery;
import gr.cite.tools.data.builder.BuilderFactory;
import gr.cite.tools.data.query.QueryFactory;
import gr.cite.tools.exception.MyApplicationException;
import gr.cite.tools.logging.LoggerService;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;

import java.util.*;

@Component
@Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
public class DmpBlueprintFileTransformerBuilder extends BaseFileTransformerBuilder<DmpBlueprintFileTransformerModel, DmpBlueprintEntity> {

    private final QueryFactory queryFactory;

    private final BuilderFactory builderFactory;
    private final JsonHandlingService jsonHandlingService;

    private final XmlHandlingService xmlHandlingService;
    private EnumSet<AuthorizationFlags> authorize = EnumSet.of(AuthorizationFlags.None);

    @Autowired
    public DmpBlueprintFileTransformerBuilder(
		    ConventionService conventionService,
		    QueryFactory queryFactory,
		    BuilderFactory builderFactory, JsonHandlingService jsonHandlingService, XmlHandlingService xmlHandlingService) {
        super(conventionService, new LoggerService(LoggerFactory.getLogger(DmpBlueprintFileTransformerBuilder.class)));
        this.queryFactory = queryFactory;
        this.builderFactory = builderFactory;
        this.jsonHandlingService = jsonHandlingService;
	    this.xmlHandlingService = xmlHandlingService;
    }

    public DmpBlueprintFileTransformerBuilder authorize(EnumSet<AuthorizationFlags> values) {
        this.authorize = values;
        return this;
    }

    @Override
    protected List<FileTransformerBuilderItemResponse<DmpBlueprintFileTransformerModel, DmpBlueprintEntity>> buildInternal(List<DmpBlueprintEntity> data) throws MyApplicationException {
        this.logger.debug("building for {}", Optional.ofNullable(data).map(List::size).orElse(0));
        if (data == null || data.isEmpty()) return new ArrayList<>();

        data = queryFactory.query(DmpBlueprintQuery.class).ids(data.stream().map(DmpBlueprintEntity::getId).toList()).collect();
        List<FileTransformerBuilderItemResponse<DmpBlueprintFileTransformerModel, DmpBlueprintEntity>> models = new ArrayList<>();
        for (DmpBlueprintEntity d : data) {

            DmpBlueprintFileTransformerModel m = new DmpBlueprintFileTransformerModel();
            m.setId(d.getId());
            m.setLabel(d.getLabel());
            try {
                m.setDefinitionFileTransformerModel(getDefinition(d.getDefinition()));
            } catch (JsonProcessingException e) {
                logger.error(e.getMessage(), e);
            }
            models.add(new FileTransformerBuilderItemResponse<>(m, d));
        }

        this.logger.debug("build {} items", Optional.of(models).map(List::size).orElse(0));

        return models;
    }

    private DefinitionFileTransformerModel getDefinition(String source) throws JsonProcessingException {
        DefinitionFileTransformerModel result = new DefinitionFileTransformerModel();
        result.setSections(new ArrayList<>());
        DefinitionEntity parsedDefinition = xmlHandlingService.fromXmlSafe(DefinitionEntity.class, source);
        List<SectionEntity> sections = parsedDefinition.getSections();
        sections.forEach(section -> {
            SectionFileTransformerModel m = new SectionFileTransformerModel();
            m.setId(section.getId());
            m.setLabel(section.getLabel());
            m.setOrdinal(section.getOrdinal());
            m.setDescription(section.getDescription());
            if (section.getFields() != null && !section.getFields().isEmpty()) {
                m.setFields(mapFields(section.getFields()));
            }
            m.setHasTemplates(section.getHasTemplates());
            result.getSections().add(m);
        });

        return result;
    }

    private List<FieldFileTransformerModel> mapFields(List<FieldEntity> fieldEntities) {
        List<FieldFileTransformerModel> result = new ArrayList<>();
        fieldEntities.forEach(fieldEntity -> {
            FieldFileTransformerModel m = switch (fieldEntity.getCategory()) {
                case System -> new SystemFieldFileTransformerModel();
                case Extra -> new ExtraFieldFileTransformerModelFileTransformerModel();
            };
            m.setId(fieldEntity.getId());
            m.setLabel(fieldEntity.getLabel());
            m.setDescription(fieldEntity.getDescription());
            m.setOrdinal(fieldEntity.getOrdinal());
            m.setPlaceholder(fieldEntity.getPlaceholder());
            m.setRequired(fieldEntity.isRequired());
            switch (m) {
                case SystemFieldFileTransformerModel sm -> sm.setSystemFieldType(DmpBlueprintSystemFieldType.of(((SystemFieldEntity)fieldEntity).getType().getValue()));
                case ExtraFieldFileTransformerModelFileTransformerModel sm -> sm.setDataType(DmpBlueprintExtraFieldDataType.of(((ExtraFieldEntity)fieldEntity).getType().getValue()));
                default -> {}
            }
            result.add(m);
        });
        return result;
    }

}