package org.springblade.code.utils;

import org.apache.commons.lang3.StringUtils;

import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class PatternUtil {

    //*${xxx}*
    public static Pattern dynamic = Pattern.compile(".*\\$\\{([a-z]+)\\}.*");
    public static Pattern dynamicLimitCount = Pattern.compile("\\$\\{([a-z]+)\\}");
    /**
     * 判断内容中是否包含动态参数(${key}形式的)
     *
     * @param content 要判断的内容
     * @return
     */
    public static boolean isContainsDynamicParameter(String content) {
        if(StringUtils.isBlank(content)){
            return false;
        }
        return dynamic.matcher(content).matches();
    }

    /**
     * 按照动态内容的参数出现顺序,将参数放到List中
     *
     * @param content
     * @return
     */
    public static List<String> getKeyListByContent(String content) {
        if(StringUtils.isBlank(content)){
            return new ArrayList<>();
        }
        Set<String> paramSet = new LinkedHashSet<>();
        Matcher m = dynamicLimitCount.matcher(content);
        while (m.find()) {
            paramSet.add(m.group(1));
        }
        return new ArrayList<>(paramSet);
    }


}