package eu.eudat.validators;

import eu.eudat.models.project.ProjectTableRequest;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import org.springframework.validation.Validator;


@Component("projectTableRequestValidator")
public class ProjectTableRequestValidator implements Validator {
    @Override
    public boolean supports(Class<?> aClass) {
        return ProjectTableRequest.class.equals(aClass);
    }

    @Override
    public void validate(Object obj, Errors errors) {
        ProjectTableRequest projectTableRequest = (ProjectTableRequest) obj;
        if (projectTableRequest.getCriteria() != null && projectTableRequest.getCriteria().getPeriodEnd() != null && projectTableRequest.getCriteria().getPeriodEnd() != null && projectTableRequest.getCriteria().getPeriodEnd().before(projectTableRequest.getCriteria().getPeriodStart())) {
            errors.rejectValue("criteria.periodStart", "projectTableRequest.periodStart.overlapping");
        }
        if (projectTableRequest.getOffset() < 0) {
            errors.rejectValue("offset", "projectTableRequest.offset.negative");
        }
        if (projectTableRequest.getLength() < 0) {
            errors.rejectValue("length", "projectTableRequest.length.negative");
        }
    }

    public static boolean supportsType(Class<?> clazz) {
        return ProjectTableRequest.class.equals(clazz);
    }
}