初始化项目
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<?php
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// +----------------------------------------------------------------------
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// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2017~2023 https://www.yiovo.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
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// +----------------------------------------------------------------------
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// | Author: 萤火科技 <admin@yiovo.com>
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// +----------------------------------------------------------------------
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declare (strict_types=1);
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namespace app\api\model;
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use app\api\service\User as UserService;
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use app\api\model\Coupon as CouponModel;
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use app\common\model\UserCoupon as UserCouponModel;
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use app\common\enum\coupon\CouponType as CouponTypeEnum;
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use app\common\enum\coupon\ApplyRange as ApplyRangeEnum;
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use app\common\library\helper;
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use cores\exception\BaseException;
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/**
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* 用户优惠券模型
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* Class UserCoupon
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* @package app\api\model
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*/
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class UserCoupon extends UserCouponModel
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{
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/**
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* 获取用户优惠券列表
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* @param int $userId
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* @param array $param
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* @return \think\Paginator
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* @throws \think\db\exception\DbException
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*/
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public function getList(int $userId, array $param): \think\Paginator
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{
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$filter = $this->getFilter($param);
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return $this->where($filter)
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->where('user_id', '=', $userId)
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->paginate(100);
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}
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/**
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* 检索查询条件
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* @param array $param
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* @return array
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*/
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private function getFilter(array $param = []): array
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{
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// 设置默认查询参数
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$params = $this->setQueryDefaultValue($param, [
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'dataType' => 'all', // all:全部 isUsable:可用的 isExpire:已过期 isUse:已使用
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'amount' => null, // 订单消费金额
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]);
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// 检索列表类型
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$filter = [];
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// 可用的优惠券
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if ($params['dataType'] === 'isUsable') {
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$filter[] = ['is_use', '=', 0];
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$filter[] = ['is_expire', '=', 0];
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$filter[] = ['start_time', '<=', time()];
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$filter[] = ['end_time', '>', time()];
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}
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// 未使用的优惠券
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if ($params['dataType'] === 'isUnused') {
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$filter[] = ['is_use', '=', 0];
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$filter[] = ['is_expire', '=', 0];
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$filter[] = ['end_time', '>', time()];
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}
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// 已过期的优惠券
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if ($params['dataType'] === 'isExpire') {
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$filter[] = ['is_expire', '=', 1];
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}
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// 已使用的优惠券
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if ($params['dataType'] === 'isUse') {
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$filter[] = ['is_use', '=', 1];
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}
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// 订单消费金额
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$params['amount'] > 0 && $filter[] = ['min_price', '<=', $params['amount']];
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return $filter;
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}
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/**
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* 获取用户优惠券总数量(可用)
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* @param int $userId
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* @return int
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*/
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public function getCount(int $userId): int
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{
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return $this->where('user_id', '=', $userId)
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->where('is_use', '=', 0)
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->where('is_expire', '=', 0)
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->where('end_time', '>', time())
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->count();
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}
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/**
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* 获取用户优惠券ID集
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* @param int $userId
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* @return array
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*/
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public function getUserCouponIds(int $userId): array
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{
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return $this->where('user_id', '=', $userId)->column('coupon_id');
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}
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/**
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* 领取优惠券
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* @param int $couponId 优惠券ID
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* @return bool
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* @throws BaseException
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*/
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public function receive(int $couponId): bool
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{
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// 当前用户ID
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$userId = UserService::getCurrentLoginUserId(true);
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// 获取优惠券信息
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$couponInfo = Coupon::detail($couponId);
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// 验证优惠券是否可领取
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if (!$this->checkReceive($userId, $couponInfo)) {
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return false;
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}
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// 添加领取记录
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return $this->add($userId, $couponInfo);
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}
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/**
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* 验证优惠券是否可领取
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* @param int $userId 当前用户ID
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* @param CouponModel $couponInfo 优惠券详情
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* @return bool
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*/
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private function checkReceive(int $userId, CouponModel $couponInfo): bool
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{
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if (empty($couponInfo)) {
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$this->error = '当前优惠券不存在';
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return false;
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}
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// 验证优惠券状态是否可领取
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$model = new CouponModel;
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if (!$model->checkReceive($couponInfo)) {
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$this->error = $model->getError() ?: '优惠券状态不可领取';
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return false;
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}
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// 验证当前用户是否已领取
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if (static::checktUserCoupon($couponInfo['coupon_id'], $userId)) {
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$this->error = '当前用户已领取该优惠券';
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return false;
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}
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return true;
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}
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/**
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* 订单结算优惠券列表
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* @param int $userId 用户id
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* @param float $orderPayPrice 订单商品总金额
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* @return array
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* @throws \think\db\exception\DbException
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*/
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public static function getUserCouponList(int $userId, float $orderPayPrice): array
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{
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// 获取用户可用的优惠券列表
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$list = (new static)->getList($userId, ['dataType' => 'isUsable', 'amount' => $orderPayPrice]);
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$data = $list->isEmpty() ? [] : $list->toArray()['data'];
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foreach ($data as &$item) {
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// 计算最大能折扣的金额
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if ($item['coupon_type'] == CouponTypeEnum::DISCOUNT) {
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$reducePrice = helper::bcmul($orderPayPrice, $item['discount'] / 10);
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$item['reduced_price'] = helper::bcsub($orderPayPrice, $reducePrice);
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} else {
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$item['reduced_price'] = $item['reduce_price'];
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}
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}
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// 根据折扣金额排序并返回
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return !empty($data) ? array_sort($data, 'reduced_price', true) : [];
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}
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/**
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* 判断当前优惠券是否满足订单使用条件
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* @param array $couponList
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* @param array $orderGoodsIds 订单商品ID集
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* @return array
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*/
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public static function couponListApplyRange(array $couponList, array $orderGoodsIds): array
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{
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// 名词解释(is_apply)：允许用于抵扣当前订单
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foreach ($couponList as &$item) {
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if ($item['apply_range'] == ApplyRangeEnum::ALL) {
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// 1. 全部商品
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$item['is_apply'] = true;
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} elseif ($item['apply_range'] == ApplyRangeEnum::SOME) {
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// 2. 指定商品, 判断订单商品是否存在可用
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$applyGoodsIds = array_intersect($item['apply_range_config']['applyGoodsIds'], $orderGoodsIds);
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$item['is_apply'] = !empty($applyGoodsIds);
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} elseif ($item['apply_range'] == ApplyRangeEnum::EXCLUDE) {
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// 2. 排除商品, 判断订单商品是否全部都在排除行列
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$excludedGoodsIds = array_intersect($item['apply_range_config']['excludedGoodsIds'], $orderGoodsIds);
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$item['is_apply'] = count($excludedGoodsIds) != count($orderGoodsIds);
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}
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!$item['is_apply'] && $item['not_apply_info'] = '该优惠券不支持当前商品';
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}
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return $couponList;
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}
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}
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