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/*
 * Copyright (C) 2017 ~ 2025 the original author or authors.
 * James Wong  Technology CO.LTD.
 * 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.
 * 
 * Reference to website: https://wl4g.github.io
 */
package com.wl4g.infra.common.matching;

import static com.wl4g.infra.common.lang.Assert2.notNullOf;
import static java.util.Objects.isNull;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.regex.Pattern;

/**
 * {@link RegexMatcher}
 * 
 * @author James Wong <[email protected]>
 * @version v1.0 2021-03-17
 * @since v2.0
 * @see
 */
public class RegexMatcher {
    private transient final Map cache = new ConcurrentHashMap<>(16);
    private final boolean sensitive;
    private final String[] regexs;

    public RegexMatcher(String... regexs) {
        this(true, regexs);
    }

    public RegexMatcher(boolean sensitive, String... regexs) {
        this.sensitive = sensitive;
        this.regexs = notNullOf(regexs, "regexs");
    }

    public boolean isSensitive() {
        return sensitive;
    }

    public String[] getRegexs() {
        return regexs;
    }

    public boolean matches(String input) {
        for (String r : regexs) {
            if (getCachePattern(r).matcher(input).matches()) {
                return true;
            }
        }
        return false;
    }

    public boolean matchesAny(String... inputs) {
        for (String input : inputs) {
            if (matches(input)) {
                return true;
            }
        }
        return false;
    }

    public boolean matchesAll(String... inputs) {
        for (String input : inputs) {
            if (!matches(input)) {
                return false;
            }
        }
        return true;
    }

    private final Pattern getCachePattern(String regex) {
        Pattern pattern = cache.get(regex);
        if (isNull(pattern)) {
            synchronized (this) {
                pattern = cache.get(regex);
                if (isNull(pattern)) {
                    Pattern p = null;
                    if (sensitive) {
                        p = Pattern.compile(regex);
                    }
                    p = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);
                    cache.put(regex, p);
                    return p;
                }
            }
        }
        return pattern;
    }

}