/**
 *
 * Copyright (c) 2006-2017, Speedment, Inc. All Rights Reserved.
 *
 * 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 com.speedment.runtime.field.internal.predicate.reference;

import com.speedment.common.tuple.Tuple2;
import com.speedment.runtime.field.internal.predicate.AbstractFieldPredicate;
import com.speedment.runtime.field.internal.predicate.BetweenPredicate;
import com.speedment.runtime.field.predicate.FieldPredicate;
import com.speedment.runtime.field.predicate.Inclusion;
import com.speedment.runtime.field.trait.HasReferenceValue;

import static com.speedment.runtime.field.predicate.PredicateType.NOT_BETWEEN;
import static java.util.Objects.requireNonNull;

/**
 *
 * @param <ENTITY>  the entity type
 * @param <D>       the database type
 * @param <V>       the value type
 * 
 * @author  Per Minborg
 * @since   2.2.0
 */
public final class ReferenceNotBetweenPredicate<ENTITY, D, V extends Comparable<? super V>>
        extends AbstractFieldPredicate<ENTITY, V, HasReferenceValue<ENTITY, D, V>>
        implements BetweenPredicate, Tuple2<V, V> {

    private final V start;
    private final V end;
    private final Inclusion inclusion;

    public ReferenceNotBetweenPredicate(
            HasReferenceValue<ENTITY, D, V> referenceField,
            V start,
            V end,
            Inclusion inclusion
    ) {
        this(referenceField, start, end, inclusion, false);
    }
    
    ReferenceNotBetweenPredicate(
        final HasReferenceValue<ENTITY, D, V> referenceField,
        final V start,
        final V end,
        final Inclusion inclusion,
        final boolean negated
    ) {
        
        super(NOT_BETWEEN, referenceField, entity -> {
            final V fieldValue = referenceField.get(entity);

            switch (inclusion) {
                case START_EXCLUSIVE_END_EXCLUSIVE : 
                    if (fieldValue == null) return false;
                    else if (start == null || end == null) return false;
                    else return !(start.compareTo(fieldValue) < 0 && end.compareTo(fieldValue) > 0);
                
                case START_EXCLUSIVE_END_INCLUSIVE : 
                    if (fieldValue == null) return start != null && end == null;
                    else if (start == null || end == null) return false;
                    else return !(start.compareTo(fieldValue) < 0 && end.compareTo(fieldValue) >= 0);
                
                case START_INCLUSIVE_END_EXCLUSIVE : 
                    if (fieldValue == null) return start == null && end != null;
                    else if (start == null || end == null) return false;
                    return !(start.compareTo(fieldValue) <= 0 && end.compareTo(fieldValue) > 0);
                
                case START_INCLUSIVE_END_INCLUSIVE : 
                    if (fieldValue == null) return start == null || end == null;
                    else if (start == null || end == null) return false;
                    return !(start.compareTo(fieldValue) <= 0 && end.compareTo(fieldValue) >= 0);
                
                default : throw new IllegalStateException("Inclusion unknown: " + inclusion);
            }
        }, negated);
        
        this.start     = start;
        this.end       = end;
        this.inclusion = requireNonNull(inclusion);
    }

    @Override
    public V get0() {
        return start;
    }

    @Override
    public V get1() {
        return end;
    }

    @Override
    public Inclusion getInclusion() {
        return inclusion;
    }

    @Override
    public ReferenceNotBetweenPredicate<ENTITY, D, V> negate() {
        return new ReferenceNotBetweenPredicate<>(getField(), start, end, inclusion, !isNegated());
    }
    
    
}