/*
 * Copyright 2024 the original author or authors.
 *
 * 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
 *
 *      https://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 xyz.zhouxy.plusone.commons.util;

import java.util.Objects;

import com.google.common.annotations.Beta;

@Beta
public class StringTools {

    public static final String EMPTY_STRING = "";

    public static boolean isNotBlank(final String cs) {
        if (cs == null || cs.isEmpty()) {
            return false;
        }
        for (int i = 0; i < cs.length(); i++) {
            if (!Character.isWhitespace(cs.charAt(i))) {
                return true;
            }
        }
        return false;
    }

    public static String repeat(String str, int times) {
        return repeat(str, times, Integer.MAX_VALUE);
    }

    public static String repeat(String str, int times, int maxLength) {
        AssertTools.checkArgument(Objects.nonNull(str));
        return String.valueOf(ArrayTools.repeat(str.toCharArray(), times, maxLength));
    }

    private StringTools() {
        throw new IllegalStateException("Utility class");
    }
}