/*
 * Copyright 2019 Scott Logic Ltd
 *
 * 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.scottlogic.datahelix.generator.core.profile.constraints.grammatical;

import com.scottlogic.datahelix.generator.core.profile.constraints.Constraint;

public class ConditionalConstraint implements GrammaticalConstraint
{
    public final Constraint condition;
    public final Constraint whenConditionIsTrue;
    public final Constraint whenConditionIsFalse;

    public ConditionalConstraint(
        Constraint condition,
        Constraint whenConditionIsTrue) {
        this(condition, whenConditionIsTrue, null);
    }

    public ConditionalConstraint(
        Constraint condition,
        Constraint whenConditionIsTrue,
        Constraint whenConditionIsFalse) {
        this.condition = condition;
        this.whenConditionIsTrue = whenConditionIsTrue;
        this.whenConditionIsFalse = whenConditionIsFalse;
    }

    @Override
    public String toString() {
        return String.format(
            "if (%s) then %s%s",
            condition,
            whenConditionIsTrue.toString(),
            whenConditionIsFalse != null ? " else " + whenConditionIsFalse.toString() : ""
        );
    }
}
