<?php

namespace app\api\utils;

use app\common\library\AliyunSms;
use think\facade\Config;
use app\common\base\utils\BaseUUID;

/**
 * 后台控制器基类
 * 接口方法权限 必传参数 接口返回 错误抛出 通用参数处理
 */

class UUIDUtils extends BaseUUID {
  private static $instance = null;
  protected $flag = 0; // 1
  protected $flagLength = 1; // 0-1
  protected $env = 0; // 0-7
  protected $envLength = 3; //
  protected $db = 0; // 0-255
  protected $dbLength = 8; // 8
  protected $server = 0; // 0-255
  protected $serverLength = 8; // 8
  protected $firstLength = 20;
  protected $secondLength = 31;
  protected $thirdLength = 31;
  protected $first36Length = 4;
  protected $second36Length = 6;
  protected $third36Length = 6;
  protected $timeLength = 42; // 0 - 4398046511103
  protected $randomLength = 12;
  protected $tableLength = 8; // 255
  protected $startTime = '1558713600000'; // 2019/5/25 0:0:0(1558713600000) - 2158/10/6 7:35:11(5956760111103)
  private function __construct() {
    $this->initOptions();
  }

  private function initOptions() {
    [
      'flag' => $this->flag,
      'env' => $this->env,
      'db' => $this->db,
      'server' => $this->server,
      'startTime' => $this->startTime
    ] = Config::get('uuid_options');

  }

  private static function getInstance() {
    return is_null(self::$instance) ? new UUIDUtils() :self::$instance;
  }

  public static function uuid($table = -1) {
    if(is_string($table) && strlen($table) === 16) {
      $table = self::pasreTable($table);
    }
    if(!is_numeric($table) || $table < 0) {
      $table = -1;
    }
    return self::getInstance()->_generateUUID($table);
  }

  public static function pasre($uuid) {
    return self::getInstance()->_pasreUUID($uuid);
  }

  public static function pasreTable($uuid) {
    return self::getInstance()->_pasreTable($uuid);
  }
}