<?php
/**
 * This service file is part of item.
 *
 * @author   ctexthuang
 * @contact  ctexthuang@qq.com
 */

declare(strict_types=1);

namespace App\Service\Amqp\Coupon;

use App\Constants\Common\CouponCode;
use App\Model\CouponDispenseLog;
use App\Model\CouponDispenseUser;
use App\Model\UserCoupon;
use Exception;
use Hyperf\Coroutine\Coroutine;
use Hyperf\DbConnection\Db;
use Hyperf\Di\Annotation\Inject;

class AutoDispenseService
{

    const int SINGLE_MAX = 1;

    /**
     * @var CouponDispenseLog
     */
    #[Inject]
    protected CouponDispenseLog $couponDispenseLogModel;

    /**
     * @var CouponDispenseUser
     */
    #[Inject]
    protected CouponDispenseUser $couponDispenseUserModel;

    /**
     * @var int
     */
    public int $couponDispenseId;

    /**
     * @return void
     * @throws Exception
     */
    public function handle(): void
    {
        $dispenseInfo = $this->couponDispenseLogModel->getInfoById($this->couponDispenseId);

        if (empty($dispenseInfo)) throw new Exception('分发记录不存在');

        $userIds = $this->couponDispenseUserModel->getNoSendUserListByDispenseId($this->couponDispenseId);
        if (empty($userIds)) throw new Exception('该分发已发送完毕');

        $partArr = array_chunk($userIds, self::SINGLE_MAX);

        foreach ($partArr as $onePart) {
            $insertData = [];
            foreach ($onePart as $oneUser) {
                //todo 模拟数据
                $oneUserData = [
                    'user_id' => $oneUser,
                    'coupon_template_id' => $dispenseInfo->coupon_template_id,
                    'coupon_name' => $dispenseInfo->coupon_name,
                    'coupon_dispense_id' => $dispenseInfo->id,
                    'status' => CouponCode::COUPON_STATUS_UNUSED,
                    'validity_start_time' => $dispenseInfo->validity_start_time,
                    'validity_end_time' => $dispenseInfo->validity_end_time,
                ];

                $copies = array_map(function () use ($oneUserData) {
                    return $oneUserData;
                }, array_fill(0, $dispenseInfo->item_count, null));

                $insertData = array_merge($insertData, $copies);
            }

            Db::transaction(function () use ($insertData,$dispenseInfo,$onePart) {
                //添加优惠券信息
                if (!(new UserCoupon())->insert($insertData)) throw new Exception('写入数据失败');
                //修改分发用户信息
                if (!(new CouponDispenseUser())->updateReceiveCountByUserIds($onePart,$dispenseInfo->item_count)) throw new Exception('修改分发用户信息失败');

                //修改分发 log 信息  (修改receive_count = origin_value + count($insertData)  ps : 查询还没发的用户 * item_count / total_count = 完成百分比)
                if (!(new CouponDispenseLog())->updateReceiveCountById($dispenseInfo->id,count($insertData))) throw new Exception('修改分发log信息失败');
            });

            // 休息1秒
            Coroutine::sleep(1);
        }
    }
}