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@@ -0,0 +1,133 @@
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+<?php
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+namespace app\common\service;
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+
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+use app\common\model\GoodsSku;
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+use app\common\model\User;
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+
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+class OrderService extends BaseService {
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+ /** @var User */
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+ protected $user;
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+ protected $coupon_use;
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+ protected $coupon_id;
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+ /** @var 1直接购买2购物车买 */
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+ protected $frm;
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+ protected $goods=[];
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+
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+ /**
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+ * @param User $user
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+ */
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+ public function setUser(User $user)
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+ {
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+ $this->user = $user;
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+ }
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+
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+ /**
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+ * @return User
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+ */
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+ public function getUser(): User
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+ {
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+ return $this->user;
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+ }
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+
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+ /**
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+ * @param array $goods
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+ */
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+ public function setGoods(array $goods): void
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+ {
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+ $this->goods = $goods;
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+ }
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+
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+ /**
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+ * @param mixed $frm
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+ */
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+ public function setFrm($frm): void
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+ {
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+ $this->frm = $frm;
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+ }
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+ /**
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+ * @param mixed $coupon_use
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+ */
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+ public function setCouponUse($coupon_use): void
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+ {
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+ $this->coupon_use = $coupon_use;
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+ }
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+
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+ /**
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+ * @param mixed $coupon_id
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+ */
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+ public function setCouponId($coupon_id): void
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+ {
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+ $this->coupon_id = $coupon_id;
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+ }
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+
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+ /**
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+ * @return array
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+ */
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+ public function getGoods()
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+ {
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+ if($this->frm==1) {
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+ $goods=$this->goods;
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+ foreach ($goods as $sku_id=>&$info){
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+ $sku=GoodsSku::find($sku_id);
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+ if(!$sku){
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+ $this->error('规格不存在');
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+ }
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+ $info['sku']=$sku;
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+ $info['goods']=$sku->goods;
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+ $info['goods_id']=$sku['goods_id'];
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+ }
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+ return $goods;
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+ }else{
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+ return $this->getUser()->cart()
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+ ->with(['goods','sku'])
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+ ->select()->toArray();
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+ }
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+ }
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+
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+ public function calculate(){
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+ $info=[
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+ 'amount_total'=>0,
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+ 'amount_coupon'=>0,
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+ 'amount_install'=>0,
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+ 'num'=>0,
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+ 'num_install'=>0,
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+ 'goods'=>[]
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+ ];
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+ $user=$this->getUser();
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+
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+ $info['goods']=$this->getGoods();
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+ $info['num']=array_sum(array_column($info['goods'],'num'));
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+ $info['num_install']=array_sum(array_column($info['goods'],'num_install'));
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+
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+ foreach ($info['goods'] as $goods){
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+ $amount=bcmul($goods['sku']['amount'],$goods['num']);
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+ $info['amount_total']=bcadd($info['amount_total'],$amount);
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+ }
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+
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+ #安装费
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+ $info['amount_install']=InstallService::getFee(array_column($info['goods'],null,'goods_sku_id'),'num_install');
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+ $info['amount_total']=bcadd($info['amount_total'],$info['amount_install']);
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+
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+ #优惠券
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+ $couponAmount=0;
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+ if(!empty($this->coupon_use)){
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+ $use=false;
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+ $coupon=$user->coupon()->findOrFail($this->coupon_id);
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+ foreach ($info['goods'] as $goods){
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+ $amount=bcmul($goods['sku']['amount'],$goods['num']);
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+ if($coupon->canUse($amount,$goods['goods_id'])){
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+ $use=true;
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+ $couponAmount=$coupon['amount'];
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+ break;
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+ }
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+ }
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+
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+ if(!$use){
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+ $this->error('优惠券不符合使用规则');
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+ }
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+ $info['amount_coupon']=$couponAmount;
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+ }
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+ $info['amount_total']=bcsub($info['amount_total'],$couponAmount);
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+ return $info;
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+ }
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+}
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