package eu.eudat.validators;

import eu.eudat.entities.DMP;
import eu.eudat.models.criteria.DataManagementPlanCriteria;
import eu.eudat.models.dmp.DataManagementPlanNewVersionModel;
import eu.eudat.services.ApiContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import org.springframework.validation.Validator;

import java.util.Arrays;
import java.util.List;
import java.util.UUID;

/**
 * Created by ikalyvas on 3/7/2018.
 */
@Component("dataManagementPlanNewVersionValidator")
public class DataManagementPlanNewVersionValidator implements Validator {

    private ApiContext apiContext;

    @Autowired
    public DataManagementPlanNewVersionValidator(ApiContext apiContext) {
        this.apiContext = apiContext;
    }

    @Override
    public boolean supports(Class<?> aClass) {
        return DataManagementPlanNewVersionModel.class.equals(aClass);
    }

    @Override
    public void validate(Object obj, Errors errors) {
        DataManagementPlanNewVersionModel dataManagementPlanNewVersionModel = (DataManagementPlanNewVersionModel) obj;
        DataManagementPlanCriteria criteria = new DataManagementPlanCriteria();
        List<UUID> groupIds = Arrays.asList(dataManagementPlanNewVersionModel.getGroupId());
        criteria.setGroupIds(groupIds);
        DMP latestDmp = apiContext.getOperationsContext().getDatabaseRepository().getDmpDao().getWithCriteria(criteria).getSingleOrDefault();
        if (latestDmp.getVersion() >= dataManagementPlanNewVersionModel.getVersion()) {
            errors.rejectValue("version", "datamanagementplannewversion.version.notacceptable");
        }
        else if (latestDmp.getVersion() + 1 != dataManagementPlanNewVersionModel.getVersion()) {
            errors.rejectValue("version", "datamanagementplannewversion.version.notnext");
        }
    }

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

}