<?php

/**
 * @author Any
 * @description KISS
 * @date 2021年6月9日
 * @version 1.0.0
 *
 * _____LOG_____
 *
 */

namespace app\models;

use app\components\FlashStorage;

class UniqueOrderNo
{
    const ORDER_TYPE_DEFAULT = '000';

    const ORDER_TYPE_CASH_USER_WALLET = '010';

    const ORDER_TYPE_TRANSFER = '020';
    const ORDER_TYPE_PAYMENT_ORDER_UNION = '030';
    const ORDER_TYPE_PAYMENT_ORDER = '031';

    const ORDER_TYPE_MANUAL_RECHARGE_ORDER = '108';

    const ORDER_TYPE_MANUAL_RECHARGE_INTEGRAL_ORDER = '208';
    const ORDER_TYPE_INTEGRAL_MALL_ORDER = '300';
    const ORDER_TYPE_BINDING_CARD_ORDER = '701'; //此值在商户侧唯一，用于【4.7分账接收方进件查询】查询申请单的信息
    const ORDER_TYPE_PS_MER_ORDER = '702';       //商户分账单号

    const ORDER_TYPE_BOOK_BOX = '801';       //预定包厢
    const ORDER_TYPE_AUTO_RECHARGE_ORDER = '109';  //充值订单
    const ORDER_TYPE_GOODS = '802';  //商品订单


    /**
     * 根据订单号获取订单类型Key
     * @param string $order_no 订单号
     */
    public static function getOrderTypeByOrderNo($order_no)
    {
        if (empty($order_no) || strlen($order_no) < 19)
            return 0;
        $order_type = substr($order_no, 14, 3);
        switch ($order_type) {
            case "010":
                return 1;
                break;
            case "020":
                return 2;
            case "108":
                return 10;
            case "109":
                return 11;
                break;
            case "208":
                return 12;
            case "300":
                return 13;
            case "601":
                return 16;
            case "602":
                return 21;
            case "603":
                return 22;
            case "604":
                return 18;
            case "701":
                return 17;
            case "801":
                return 33;
            case "802":
                return 19;
                break;
            //@TODO 其他
            default:
                return 0;
        }
    }

    public static function orderTypeLabels()
    {
        return [
            '1' => '钱包提现',
            '2' => '平台转账',
            '10' => '余额充值',
            '11' => '余额充值',
            '12' => '积分充值',
            '13' => '积分兑换',
            '16' => '球杆检测',
            '21' => '球杆检测',
            '22' => '球杆检测',
            '33' => '预定包厢',
            '19' => '商品下单',
            '99' => '店长入账记录',
        ];
    }

    public static function getOrderType($type)
    {
        $labels = self::orderTypeLabels();
        return isset($labels[$type]) ? $labels[$type] : "未知";
    }


    /**
     * 生成唯一订单号，YYYYMMDDHHIISS+订单类型+随机数+校验码（2位）
     * @param string $order_type 订单类型，识别码三位数字
     * @param Model $class Model
     * @param integer $len 订单号长度，最小值为20
     * retrun string|null
     * throw Exception
     */
    public static function generate($order_type, $class = null, $len = 24, $retry = 1, $retry_max = 3, $unique_field = 'order_no')
    {
        $cache_key = "u_o_n_g_{$order_type}";
        $cache_val = FlashStorage::getCache($cache_key);
        if ($cache_val !== false) {
            sleep(1);
            $retry += 1;
            return $retry <= $retry_max ? self::generate($order_type, $class, $len, $retry, $retry_max, $unique_field) : null;
        }
        FlashStorage::setCache($cache_key, $cache_key);
        $order_no = null;
        if ($class == null) {
            $order_no = self::_generate($order_type, $len);
            FlashStorage::deleteCache($cache_key);
            return $order_no;
        }
        if (!class_exists($class)) {
            throw new \Exception("{$class}不存在");
        }
        while (true) {
            $order_no = self::_generate($order_type, $len);
            $exists = $class::find()->where([$unique_field => $order_no])->exists();
            if (!$exists) {
                FlashStorage::deleteCache($cache_key);
                break;
            }
        }
        return $order_no;
    }

    public static function _generate($order_type, $len = 32)
    {
        $order_no_main = date('YmdHis', time()) . $order_type;
        $rand_str_len = $len - strlen($order_no_main) - 2;
        $rand_str = "";
        if ($rand_str_len > 0) {
            $rand_min = pow(10, $rand_str_len - 1);
            $rand_max = pow(10, $rand_str_len) - 1;
            $rand_str = mt_rand($rand_min, $rand_max);
        }
        $order_no_main .= $rand_str;
        $order_no_mian_len = strlen($order_no_main);
        $order_no_main_sum = 0;
        for ($i = 0; $i < $order_no_mian_len; $i++) {
            $order_no_main_sum += (int)(substr($order_no_main, $i, 1));
        }
        $order_no = $order_no_main . str_pad((100 - $order_no_main_sum % 100) % 100, 2, '0', STR_PAD_LEFT);
        //并发情况生成唯一订单号
        $cache_key = "u_o_n_g_{$order_type}_{$order_no}";
        $cache_val = FlashStorage::getCache($cache_key);
        if ($cache_val !== false) {
            usleep(500);
            return self::_generate($order_type, $len);
        }
        FlashStorage::setCache($cache_key, $cache_key, 60);

        return $order_no;
    }

}