<?php


namespace App\Servers;

use App\Events\NumEvent;
use App\Jobs\IndentNumJob;
use App\Models\IndentNum;
use App\Models\Menu;
use App\Models\MenuUrl;
use App\Models\Permission;
use App\Models\Role;
use App\Models\RolePermission;
use App\Models\User;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Redis;


/**
 * Redis数据缓存类
 */
class IndentNumServer
{
    /**
     * 单列对象
     * @var
     */
    static $server;

    private $key_name = 'ac_num';

    private $max_num;


    private function __construct()
    {
        $this->max_num=env('CODE_NUM_LENGTH',100);
    }

    /**
     * 创建对象
     * @return IndentNumServer
     */
    static function creatServer()
    {
        if (empty(self::$server)) {
            self::$server = new IndentNumServer();
        }
        return self::$server;
    }

    /**
     * 获取最新编号
     * @param $type
     * @param int $length
     * @return string
     */
    function getIndentNum($type, $length = 0)
    {
        $redis_name = $this->key_name . '_' . $type;
//        event(new NumEvent($type));
        $row=RedisDataServer::creatServer()->getData($redis_name.'_data','json');
        if(empty($row)){
            $row = IndentNum::where('type', $type)->first()->toArray();

        }
        $redis_num=$row['number']+1;
        RedisDataServer::creatServer()->setData($redis_name.'_data',$row,'json',60);
        $row['digits'] = $length > 0 ? $length : $row['digits'];
        $date = date("Ymd");
        if (!$redis_num) {
            if ($row['is_date'] == 1) {
                $num = sprintf("%0{$row['digits']}s", $row['number'] + 1);
                $new_cod = $date . $num;
            } else {
                $new_cod = sprintf("%0{$row['digits']}s", $row['number'] + 1);
            }
        } else {
            if ($row['is_date'] == 1) {
                $num = sprintf("%0{$row['digits']}s", $redis_num);
                $new_cod = $date . $num;
            } else {
                $new_cod = sprintf("%0{$row['digits']}s", $redis_num);
            }
        }
        IndentNum::where('id',$row['id'])->increment('number');
        return $row['code_str'] . $new_cod;
    }


    /**
     * 验证队列的数据并自动生成
     * @param $type
     */
    function verifyNum($type)
    {
        $redis_name = $this->key_name . '_' . $type;
        $key_num = RedisDataServer::creatServer()->getQueueList($redis_name);
        if ($key_num <35) {
            //开启事务，并启动悲观锁
            DB::beginTransaction();
            $row = IndentNum::where('type', $type)->select(['id','number','max_num'])->lockForUpdate()->first();
            $max_num = $row->{'number'} > $row->{'max_num'} ? $row->{'number'} : $row->{'max_num'};
            $num_arr=range($max_num+1,$max_num+100);
//            $num_arr=array_reverse($num_arr);
            RedisDataServer::creatServer()->addQueue($redis_name,$num_arr);
            IndentNum::where('id',$row->{'id'})->update(['max_num'=>$max_num+100]);
            DB::commit();
        }
    }

}