/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package tech.tablesaw.columns.temporal;

import java.util.function.LongPredicate;
import tech.tablesaw.columns.instant.InstantColumnType;
import tech.tablesaw.filtering.predicates.LongBiPredicate;

public class TemporalPredicates {

  protected TemporalPredicates() {}

  public static final LongPredicate isMissing = i -> i == InstantColumnType.missingValueIndicator();

  public static final LongPredicate isNotMissing =
      i -> i != InstantColumnType.missingValueIndicator();

  public static final LongBiPredicate isGreaterThan =
      (valueToTest, valueToCompareAgainst) -> valueToTest > valueToCompareAgainst;

  public static final LongBiPredicate isGreaterThanOrEqualTo =
      (valueToTest, valueToCompareAgainst) -> valueToTest >= valueToCompareAgainst;

  public static final LongBiPredicate isLessThan =
      (valueToTest, valueToCompareAgainst) -> valueToTest < valueToCompareAgainst;

  public static final LongBiPredicate isLessThanOrEqualTo =
      (valueToTest, valueToCompareAgainst) -> valueToTest <= valueToCompareAgainst;

  public static final LongBiPredicate isEqualTo =
      (long valueToTest, long valueToCompareAgainst) -> valueToTest == valueToCompareAgainst;

  public static final LongBiPredicate isNotEqualTo =
      (long valueToTest, long valueToCompareAgainst) -> valueToTest != valueToCompareAgainst;
}
