content: /*
   * LibertyBans
   * Copyright © 2023 Anand Beh
   *
   * LibertyBans is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as
   * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   *
   * LibertyBans is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with LibertyBans. If not, see <https://www.gnu.org/licenses/>
   * and navigate to version 3 of the GNU Affero General Public License.
   */
  
  package space.arim.libertybans.core.database.sql;
  
  import org.jooq.Condition;
  import space.arim.libertybans.api.select.SelectionPredicate;
  
  import static org.jooq.impl.DSL.noCondition;
  import static org.jooq.impl.DSL.not;
  
  public interface MultiFieldCriterion<F> {
  
  	Condition matchesValue(F value);
  
  	default Condition buildCondition(SelectionPredicate<F> selection) {
  		// Check field is accepted
  		Condition fieldAcceptedCondition = noCondition();
  		for (F acceptedValue : selection.acceptedValues()) {
  			fieldAcceptedCondition = fieldAcceptedCondition.or(matchesValue(acceptedValue));
  		}
  		// Check field is not rejected
  		Condition fieldNotRejectedCondition = noCondition();
  		for (F rejectedValue : selection.rejectedValues()) {
  			fieldNotRejectedCondition = fieldNotRejectedCondition.and(not(matchesValue(rejectedValue)));
  		}
  		return fieldAcceptedCondition.and(fieldNotRejectedCondition);
  	}
  
  }
  