CRMEB_PRO_M/app/services/activity/lottery/LuckPrizeServices.php

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<?php
// +----------------------------------------------------------------------
// | CRMEB [ CRMEB赋能开发者助力企业发展 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2016~2020 https://www.crmeb.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed CRMEB并不是自由软件未经许可不能去掉CRMEB相关版权
// +----------------------------------------------------------------------
// | Author: CRMEB Team <admin@crmeb.com>
// +----------------------------------------------------------------------
declare (strict_types=1);
namespace app\services\activity\lottery;
use app\services\BaseServices;
use app\dao\activity\lottery\LuckPrizeDao;
use app\services\activity\coupon\StoreCouponIssueServices;
use crmeb\services\CacheService;
use think\exception\ValidateException;
/**
*
* Class LuckPrizeServices
* @package app\services\activity\lottery
* @mixin LuckPrizeDao
*/
class LuckPrizeServices extends BaseServices
{
/**
* @var array 1未中奖2积分3:余额4红包5:优惠券6站内商品7等级经验8用户等级 9svip天数
*/
public $prize_type = [
'1' => '未中奖',
'2' => '积分',
'3' => '余额',
'4' => '红包',
'5' => '优惠券',
'6' => '站内商品',
'7' => '等级经验',
'8' => '用户等级',
'9' => 'svip天数'
];
/**
* 奖品数据字段
* @var array
*/
public $prize = [
'id' => 0,
'type' => 1,
'lottery_id' => 0,
'name' => '',
'prompt' => '',
'image' => '',
'chance' => 0,
'total' => 0,
'coupon_id' => 0,
'product_id' => 0,
'unique' => '',
'num' => 1,
'sort' => 0,
'status' => 1,
'is_del' => 0,
'add_time' => 0,
];
/**
* LuckPrizeServices constructor.
* @param LuckPrizeDao $dao
*/
public function __construct(LuckPrizeDao $dao)
{
$this->dao = $dao;
}
/**
* 奖品数据验证
* @param array $data
* @return array
*/
public function checkPrizeData(array $data)
{
$data = array_merge($this->prize, array_intersect_key($data, $this->prize));
if (!isset($data['name']) || !$data['name']) {
throw new ValidateException('请填写奖品名称');
}
if (!isset($data['image']) || !$data['image']) {
throw new ValidateException('请选择奖品图片');
}
if (!isset($data['chance'])) {
throw new ValidateException('请填写奖品中奖权重');
}
if (!isset($data['type']) || !isset($this->prize_type[$data['type']])) {
throw new ValidateException('请选择奖品类型');
}
if (in_array($data['type'], [2, 3, 4]) && (!isset($data['num']) || !$data['num'])) {
$msg = '';
switch ($data['type']) {
case 2:
$msg = '积分';
break;
case 3:
$msg = '余额';
break;
case 4:
$msg = '红包';
break;
}
throw new ValidateException('请填写奖品赠送' . $msg . '数');
}
if ($data['type'] == 2) {
$data['num'] = (int)$data['num'];
}
if ($data['type'] == 5 && (!isset($data['coupon_id']) || !$data['coupon_id'])) {
throw new ValidateException('请选择优惠券');
}
if ($data['type'] == 6 && (!isset($data['product_id']) || !$data['product_id'])) {
throw new ValidateException('请选择商品');
}
return $data;
}
/**
* 修改奖品
* @param int $id
* @param array $data
* @return bool
* @throws \think\db\exception\DataNotFoundException
* @throws \think\db\exception\DbException
* @throws \think\db\exception\ModelNotFoundException
*/
public function edit(int $id, array $data)
{
$this->checkPrizeData($data);
$prize = $this->dao->get($id);
if (!$prize) {
throw new ValidateException('奖品不存在');
}
if (!$this->dao->update($id, $data, 'id')) {
throw new ValidateException('修改失败');
}
return true;
}
/**
* 获取某个抽奖活动的所有奖品
* @param int $lottery_id
* @param string $field
* @return array
* @throws \think\db\exception\DataNotFoundException
* @throws \think\db\exception\DbException
* @throws \think\db\exception\ModelNotFoundException
*/
public function getLotteryPrizeList(int $lottery_id, string $field = '*')
{
return $this->dao->getPrizeList($lottery_id, $field);
}
/**
* 随机奖品
* @param array $data
* @return array|mixed
*/
public function getLuckPrize(array $data)
{
$prize = [];
if (!$data) return $prize;
$coupon = [];
$coupon_ids = array_unique(array_column($data, 'coupon_id'));
if ($coupon_ids) {
/** @var StoreCouponIssueServices $couponServices */
$couponServices = app()->make(StoreCouponIssueServices::class);
$coupon = $couponServices->getGiveCoupon([['id', 'IN', $coupon_ids]]);
if ($coupon) $coupon = array_combine(array_column($coupon, 'id'), $coupon);
}
$totalChance = (int)array_sum(array_column($data, 'chance'));
if (!$totalChance) return $prize;
$startChance = 0;
mt_srand();
$prizeChance = rand(0, $totalChance - 1);
$newPrize = array_combine(array_column($data, 'type'), $data);
foreach ($data as $item) {
$newStartChance = (int)bcadd((string)$item['chance'], (string)$startChance);
//随机数在这个基数端内 且该商品数量大于0 中奖
if ($prizeChance >= $startChance && $prizeChance < $newStartChance) {
//奖品权重<=0 || 随机到不是未中奖奖品-》设置了奖品数量-》数量不足时 返回未中奖奖品 || 抽到优惠券 数量不足
if ((int)$item['chance'] <= 0 ||
(
$item['type'] != 1 &&
$item['total'] != -1 &&
$item['total'] <= 0 &&
CacheService::popStock((string)$item['id'], 1, 6)
)
||
(
$item['coupon_id'] &&
$coupon &&
!isset($coupon[$item['coupon_id']])
)
) {
$prize = $newPrize[1] ?? [];
} else {
$prize = $item;
}
break;
}
$startChance = $newStartChance;
}
return $prize;
}
/**
* 中奖后减少奖品数量
* @param int $id
* @param array $prize
* @return bool
* @throws \think\db\exception\DataNotFoundException
* @throws \think\db\exception\DbException
* @throws \think\db\exception\ModelNotFoundException
*/
public function decPrizeNum(int $id, array $prize = [])
{
if (!$id) return false;
if (!$prize) {
$prize = $this->dao->get($id);
}
if (!$prize) {
throw new ValidateException('该奖品不存在');
}
//不是未中奖奖品 减少奖品数量
if ($prize['type'] != 1 && $prize['total'] >= 1) {
$total = $prize['total'] - 1;
if (!$this->dao->update($id, ['total' => $total], 'id')) {
throw new ValidateException('抽奖减少奖品总数失败');
}
}
return true;
}
}