/*
 * 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.generation.string.generators;

import com.scottlogic.datahelix.generator.common.RandomNumberGenerator;

import java.util.stream.Stream;

public class NoStringsStringGenerator implements StringGenerator {
    private final String stringRepresentation;

    public NoStringsStringGenerator(String stringRepresentation) {
        this.stringRepresentation = stringRepresentation;
    }

    @Override
    public String toString() {
        return String.format("No strings: %s", this.stringRepresentation);
    }

    public boolean matches(String subject) {
        return false;
    }

    @Override
    public StringGenerator intersect(StringGenerator stringGenerator) {
        return this;
    }

    @Override
    public boolean validate(String string) {
        return matches(string);
    }

    @Override
    public Stream<String> generateAllValues() {
        return Stream.empty();
    }

    @Override
    public Stream<String> generateRandomValues(RandomNumberGenerator randomNumberGenerator) {
        return Stream.empty();
    }
}
