com.github.saphyra.randwo.label.service.delete.LabelDeletionValidator Maven / Gradle / Ivy

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package com.github.saphyra.randwo.label.service.delete;

import java.util.UUID;

import org.springframework.stereotype.Component;

import com.github.saphyra.exceptionhandling.domain.ErrorMessage;
import com.github.saphyra.exceptionhandling.exception.UnprocessableEntityException;
import com.github.saphyra.randwo.common.ErrorCode;
import com.github.saphyra.randwo.mapping.itemlabel.domain.ItemLabelMapping;
import com.github.saphyra.randwo.mapping.itemlabel.repository.ItemLabelMappingDao;
import lombok.RequiredArgsConstructor;

@Component
@RequiredArgsConstructor
class LabelDeletionValidator {
    private final ItemLabelMappingDao itemLabelMappingDao;

    void validateLabelCanBeDeleted(UUID labelId) {
        itemLabelMappingDao.getByLabelId(labelId).forEach(this::validateSize);
    }

    private void validateSize(ItemLabelMapping itemLabelMapping) {
        if (itemLabelMappingDao.getByItemId(itemLabelMapping.getItemId()).size() == 1) {
            throw new UnprocessableEntityException(
                new ErrorMessage(ErrorCode.ITEM_HAS_ONLY_ONE_LABEL.getErrorCode()),
                "Label with id " + itemLabelMapping.getLabelId() + " cannot be deleted because there are items with only this label."
            );
        }
    }
}