package com.qs.serve.common.util;

import cn.hutool.core.lang.Snowflake;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Random;

/**
 * @author YenHex
 * @since 2022/3/3
 */
public class IdUtil extends cn.hutool.core.util.IdUtil {

    private static final long BASE_DIFF_MILLIS = 1648013774104L;
    private static final long BASE_DIFF_MILLIS2 = 1578585779603640320L;

    private static final Snowflake snowflake = getSnowflake(1,1);

    public static String timeStampId() {
        long millis = System.currentTimeMillis();
        String prefix = String.format("%013d", millis-BASE_DIFF_MILLIS);
        Random random = new Random();
        int end2 = random.nextInt(999);
        return  prefix + String.format("%03d", end2);
    }

    public static void main(String[] args) {
        for (int i = 0; i < 1000; i++) {
            System.out.println(getSnowFlakeId());
        }
    }

    public static Long timeStampLong() {
        return System.currentTimeMillis()-BASE_DIFF_MILLIS;
    }

    public static String dateTimeStampId() {
        LocalDateTime localDateTime = LocalDateTime.now();
        DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
        String localTime = df.format(localDateTime);
        Random random = new Random();
        int end2 = random.nextInt(999);
        return  localTime + String.format("%03d", end2);
    }

    public static String dateTimeId() {
        LocalDateTime localDateTime = LocalDateTime.now();
        DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
        String localTime = df.format(localDateTime);
        return  localTime;
    }

    public static String genCode(int len) {
        int max = new Double(Math.pow(10, len)).intValue() - 1;
        Random random = new Random();
        int end2 = random.nextInt(max);
        return  String.format("%0"+len+"d", end2);
    }

    public static long getSnowFlakeId(){
        return snowflake.nextId()-BASE_DIFF_MILLIS2;
    }

}