package eu.eudat.model.persist;

import eu.eudat.authorization.AuthorizationFlags;
import eu.eudat.commons.XmlHandlingService;
import eu.eudat.commons.enums.DmpAccessType;
import eu.eudat.commons.enums.DmpStatus;
import eu.eudat.commons.enums.IsActive;
import eu.eudat.commons.types.dmpblueprint.DefinitionEntity;
import eu.eudat.commons.types.dmpblueprint.SectionEntity;
import eu.eudat.commons.validation.BaseValidator;
import eu.eudat.data.*;
import eu.eudat.query.DescriptionQuery;
import eu.eudat.query.DmpDescriptionTemplateQuery;
import gr.cite.tools.data.query.QueryFactory;
import gr.cite.tools.validation.ValidatorFactory;
import gr.cite.tools.validation.specification.Specification;
import eu.eudat.convention.ConventionService;
import eu.eudat.errorcode.ErrorThesaurusProperties;
import eu.eudat.model.persist.dmpproperties.DmpPropertiesPersist;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Scope;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.stereotype.Component;

import javax.management.InvalidApplicationException;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;

public class DmpPersist {

    private UUID id;

    private String label;

    public static final String _label = "label";

    private DmpStatus status;

    public static final String _status = "status";

    private DmpPropertiesPersist properties;

    public static final String _properties = "properties";

    private String description;
    public static final String _description = "description";

    private String language;
    public static final String _language = "language";

    private UUID blueprint;

    public static final String _blueprint = "blueprint";

    private DmpAccessType accessType;
    public static final String _accessType = "accessType";

//    private List<DmpReferencePersist> references;
//
//    public static final String _references = "references";

    private List<DmpDescriptionTemplatePersist> descriptionTemplates;

    public static final String _descriptionTemplates = "descriptionTemplates";

    private List<DmpUserPersist> users;
    public static final String _users = "users";

    private String hash;

    public static final String _hash = "hash";

    public UUID getId() {
        return id;
    }

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

    public String getLabel() {
        return label;
    }

    public void setLabel(String label) {
        this.label = label;
    }

    public DmpStatus getStatus() {
        return status;
    }

    public void setStatus(DmpStatus status) {
        this.status = status;
    }

    public DmpPropertiesPersist getProperties() {
        return properties;
    }

    public void setProperties(DmpPropertiesPersist properties) {
        this.properties = properties;
    }

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public String getLanguage() {
        return language;
    }

    public void setLanguage(String language) {
        this.language = language;
    }

    public UUID getBlueprint() {
        return blueprint;
    }

    public void setBlueprint(UUID blueprint) {
        this.blueprint = blueprint;
    }

    public DmpAccessType getAccessType() {
        return accessType;
    }

    public void setAccessType(DmpAccessType accessType) {
        this.accessType = accessType;
    }

    public List<DmpDescriptionTemplatePersist> getDescriptionTemplates() {
        return descriptionTemplates;
    }

    public void setDescriptionTemplates(List<DmpDescriptionTemplatePersist> descriptionTemplates) {
        this.descriptionTemplates = descriptionTemplates;
    }

    public List<DmpUserPersist> getUsers() {
        return users;
    }

    public void setUsers(List<DmpUserPersist> users) {
        this.users = users;
    }

    public String getHash() {
        return hash;
    }

    public void setHash(String hash) {
        this.hash = hash;
    }

    @Component(DmpPersistValidator.ValidatorName)
    @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
    public static class DmpPersistValidator extends BaseValidator<DmpPersist> {

        public static final String ValidatorName = "DmpPersistValidator";

        private final MessageSource messageSource;

        private final ValidatorFactory validatorFactory;
        private final TenantEntityManager entityManager;
        private final XmlHandlingService xmlHandlingService;
        private final QueryFactory queryFactory;

        protected DmpPersistValidator(ConventionService conventionService, ErrorThesaurusProperties errors, MessageSource messageSource, ValidatorFactory validatorFactory, TenantEntityManager entityManager, XmlHandlingService xmlHandlingService, QueryFactory queryFactory) {
            super(conventionService, errors);
            this.messageSource = messageSource;
            this.validatorFactory = validatorFactory;
            this.entityManager = entityManager;
            this.xmlHandlingService = xmlHandlingService;
            this.queryFactory = queryFactory;
        }

        @Override
        protected Class<DmpPersist> modelClass() {
            return DmpPersist.class;
        }

        @Override
        protected List<Specification> specifications(DmpPersist item) {
            DmpBlueprintEntity dmpBlueprintEntity = null;
            try {
                dmpBlueprintEntity = this.isValidGuid(item.getBlueprint()) ? this.entityManager.find(DmpBlueprintEntity.class, item.getBlueprint()) : null;

            } catch (InvalidApplicationException e) {
                throw new RuntimeException(e);
            }
            DmpBlueprintEntity finalDmpBlueprintEntity = dmpBlueprintEntity;
            DefinitionEntity definition = dmpBlueprintEntity == null ? null : this.xmlHandlingService.fromXmlSafe(DefinitionEntity.class, dmpBlueprintEntity.getDefinition());

            return Arrays.asList(
                    this.spec()
                            .iff(() -> this.isValidGuid(item.getId()))
                            .must(() -> this.isValidHash(item.getHash()))
                            .failOn(DmpPersist._hash).failWith(messageSource.getMessage("Validation_Required", new Object[]{DmpPersist._hash}, LocaleContextHolder.getLocale())),
                    this.spec()
                            .iff(() -> !this.isValidGuid(item.getId()))
                            .must(() -> !this.isValidHash(item.getHash()))
                            .failOn(DmpPersist._hash).failWith(messageSource.getMessage("Validation_OverPosting", new Object[]{}, LocaleContextHolder.getLocale())),
                    this.spec()
                            .must(() -> !this.isEmpty(item.getLabel()))
                            .failOn(DmpPersist._label).failWith(messageSource.getMessage("Validation_Required", new Object[]{DmpPersist._label}, LocaleContextHolder.getLocale())),
                    this.spec()
                            .iff(() -> !this.isEmpty(item.getLabel()))
                            .must(() -> this.lessEqualLength(item.getLabel(), DmpEntity._labelLength))
                            .failOn(DmpPersist._label).failWith(messageSource.getMessage("Validation_MaxLength", new Object[]{DmpPersist._label}, LocaleContextHolder.getLocale())),
                    this.spec()
                            .must(() -> !this.isNull(item.getStatus()))
                            .failOn(DmpPersist._status).failWith(messageSource.getMessage("Validation_Required", new Object[]{DmpPersist._status}, LocaleContextHolder.getLocale())),
                    this.spec()
                            .iff(() -> item.getStatus() == DmpStatus.Finalized)
                            .must(() -> this.isValidGuid(item.getBlueprint()))
                            .failOn(DmpPersist._blueprint).failWith(messageSource.getMessage("Validation_Required", new Object[]{DmpPersist._blueprint}, LocaleContextHolder.getLocale())),

                    this.spec()
                            .iff(() -> item.getStatus() == DmpStatus.Finalized)
                            .must(() -> !this.isNull(item.getProperties()))
                            .failOn(DmpPersist._properties).failWith(messageSource.getMessage("Validation_Required", new Object[]{DmpPersist._properties}, LocaleContextHolder.getLocale())),
                    this.spec()
                            .iff(() -> item.getStatus() == DmpStatus.Finalized)
                            .must(() -> this.isDescriptionTemplateMultiplicityValid(finalDmpBlueprintEntity, item.getId()))
                            .failOn(DmpPersist._descriptionTemplates).failWith(messageSource.getMessage("Validation.InvalidDescriptionTemplateMultiplicity", new Object[]{DmpPersist._descriptionTemplates}, LocaleContextHolder.getLocale())),
                    this.refSpec()
                            .iff(() -> !this.isNull(item.getProperties()))
                            .on(DmpPersist._properties)
                            .over(item.getProperties())
                            .using(() -> this.validatorFactory.validator(DmpPropertiesPersist.DmpPropertiesPersistValidator.class).setStatus(item.getStatus()).withDefinition(definition)),
                    this.spec()
                            .iff(() -> item.getStatus() == DmpStatus.Finalized)
                            .must(() -> !this.isNull(item.getLanguage()))
                            .failOn(DmpPersist._language).failWith(messageSource.getMessage("Validation_Required", new Object[]{DmpPersist._language}, LocaleContextHolder.getLocale())),
                    this.spec()
                            .iff(() -> item.getStatus() == DmpStatus.Finalized)
                            .must(() -> !this.isNull(item.getAccessType()))
                            .failOn(DmpPersist._accessType).failWith(messageSource.getMessage("Validation_Required", new Object[]{DmpPersist._accessType}, LocaleContextHolder.getLocale())),
                    this.spec()
                            .iff(() -> item.getStatus() == DmpStatus.Finalized)
                            .must(() -> !this.isListNullOrEmpty(item.getDescriptionTemplates()))
                            .failOn(DmpPersist._descriptionTemplates).failWith(messageSource.getMessage("Validation_Required", new Object[]{DmpPersist._descriptionTemplates}, LocaleContextHolder.getLocale())),
                    this.navSpec()
                            .iff(() -> !this.isListNullOrEmpty(item.getDescriptionTemplates()))
                            .on(DmpPersist._descriptionTemplates)
                            .over(item.getDescriptionTemplates())
                            .using((itm) -> this.validatorFactory.validator(DmpDescriptionTemplatePersist.DmpDescriptionTemplatePersistValidator.class)),
                    this.navSpec()
                            .iff(() -> !this.isListNullOrEmpty(item.getUsers()))
                            .on(DmpPersist._users)
                            .over(item.getUsers())
                            .using((itm) -> this.validatorFactory.validator(DmpUserPersist.DmpUserPersistValidator.class))
            );
        }

        private boolean isDescriptionTemplateMultiplicityValid(DmpBlueprintEntity dmpBlueprintEntity, UUID dmpId){
            eu.eudat.commons.types.dmpblueprint.DefinitionEntity definition = this.xmlHandlingService.fromXmlSafe(eu.eudat.commons.types.dmpblueprint.DefinitionEntity.class, dmpBlueprintEntity.getDefinition());
            if (definition == null || this.isListNullOrEmpty(definition.getSections())) return true;

            List<DmpDescriptionTemplateEntity> dmpDescriptionTemplateEntities = this.queryFactory.query(DmpDescriptionTemplateQuery.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).isActive(IsActive.Active).dmpIds(dmpId).collect();
            List<DescriptionEntity> descriptionEntities = this.queryFactory.query(DescriptionQuery.class).authorize(AuthorizationFlags.OwnerOrDmpAssociatedOrPermission).dmpIds(dmpId).isActive(IsActive.Active).collect();

            for (SectionEntity section: definition.getSections()) {
                if (section.getHasTemplates() && !this.isListNullOrEmpty(section.getDescriptionTemplates())){

                    for (eu.eudat.commons.types.dmpblueprint.DescriptionTemplateEntity sectionDescriptionTemplate: section.getDescriptionTemplates()) {
                        if (sectionDescriptionTemplate.getMaxMultiplicity() == null && sectionDescriptionTemplate.getMinMultiplicity() == null ) continue;

                        int descriptionsCount = 0;
                        for (DmpDescriptionTemplateEntity dmpDescriptionTemplate: dmpDescriptionTemplateEntities) {

                            if(dmpDescriptionTemplate.getSectionId().equals(section.getId())) {
                                for (DescriptionEntity description: descriptionEntities){
                                    if (sectionDescriptionTemplate.getDescriptionTemplateGroupId().equals(dmpDescriptionTemplate.getDescriptionTemplateGroupId())) {
                                        if (description.getDmpDescriptionTemplateId().equals(dmpDescriptionTemplate.getId()) && dmpDescriptionTemplate.getSectionId().equals(section.getId()))
                                            descriptionsCount++;
                                    }
                                }
                            }
                        }
                        if (sectionDescriptionTemplate.getMinMultiplicity() != null && sectionDescriptionTemplate.getMinMultiplicity() > descriptionsCount) return false;
                        if (sectionDescriptionTemplate.getMaxMultiplicity() != null && sectionDescriptionTemplate.getMaxMultiplicity() < descriptionsCount) return false;

                    }

                }

            }
            return true;
        }
    }

}