199 lines
8.1 KiB
PHP
199 lines
8.1 KiB
PHP
<?php
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/**
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* ShippingService.php
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*
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* @copyright 2022 beikeshop.com - All Rights Reserved
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* @link https://beikeshop.com
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* @author Edward Yang <yangjin@guangda.work>
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* @created 2022-07-22 17:58:14
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* @modified 2022-07-22 17:58:14
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*/
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namespace Beike\Shop\Services\TotalServices;
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use Beike\Libraries\Weight;
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use Beike\Models\Logistics;
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use Beike\Shop\Services\CheckoutService;
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use Illuminate\Support\Str;
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class ShippingService{
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// 运费计算
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public static function getTotal(CheckoutService $checkout): ?array{
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$totalService = $checkout->totalService;
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$shippingMethod = $totalService->getShippingMethod();
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$amount = 0;
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if($shippingMethod && !is_int($checkout->cart->shipping_method_code)){
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// 通过插件（固定运费） 进行计算
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if(empty($shippingMethod)) return NULL;
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$shippingPluginCode = self::parseShippingPluginCode($shippingMethod);
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$pluginCode = Str::studly($shippingPluginCode);
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if(!app('plugin')->checkActive($shippingPluginCode)){
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$cart = $checkout->cart;
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$cart->shipping_method_code = '';
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$cart->saveOrFail();
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return [];
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}
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$className = "Plugin\\{$pluginCode}\\Bootstrap";
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if(!method_exists($className,'getShippingFee')){
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throw new \Exception("请在插件 {$className} 实现方法: public function getShippingFee(CheckoutService \$checkout)");
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}
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$amount = (float)(new $className)->getShippingFee($checkout);
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}
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else{
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// 通过物流进行计算
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$logisticsId = (int)$checkout->cart->shipping_method_code;
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$logisticsInfo = self::getLogistics($logisticsId,$checkout->cart);
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if($logisticsInfo) {
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// 商品信息处理 获取同一个商品的数量
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$products = $checkout->selectedProducts->toArray() ?? [];
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$productsList = collect($products)->groupBy('product_id')->map(function($group){
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$firstInfo = $group->first();
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// 重量转换 - 物流重量单位为 千克；商品重量需要进行转换
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$weight = $firstInfo['product']['weight'] ?? 0;
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$sumQuantity = $group->sum('quantity');
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$sumWeight = (float)sprintf("%.2f",($weight * $sumQuantity));
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$weightClass = $firstInfo['product']['weight_class'];
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$sumWeight = Weight::convert($sumWeight,$weightClass);// 总重量 单位：克
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return [
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'product_id' => $firstInfo['product_id'],
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'sum_quantity' => $sumQuantity,
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'sum_weight' => $sumWeight,
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'weight' => $weight,
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'weight_class' => $weightClass,
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];
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});
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// weight：按重量计费，num：按数量计费，free：卖家包邮
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$logisticsHandleFun = 'compute_'.$logisticsInfo['type'];
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$amount = self::$logisticsHandleFun($logisticsInfo,$productsList);
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}
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}
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$totalData = [
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'code' => 'shipping',
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'title' => trans('shop/carts.shipping_fee'),
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'amount' => $amount,
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'amount_format' => currency_format($amount),
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];
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$totalService->amount += $totalData['amount'];
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$totalService->totals[] = $totalData;
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return $totalData;
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}
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/**
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* Common: 运费计算 - 物流运费 - 获取使用的物流
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* Author: wu-hui
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* Time: 2023/08/22 11:55
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* @param $logisticsId
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* @param $cart
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* @return array|mixed|mixed[]
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*/
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private static function getLogistics($logisticsId,$cart){
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if($logisticsId <= 0){
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// 获取当前收货地址国家ID
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$address = $cart->guest_shipping_address ?? $cart->guest_payment_address;
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$countryId = $address['country_id'];
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// 获取全部物流 返回第一个物流信息ID
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$logisticsList = Logistics::getAll($countryId,['type','first_weight','first_weight_fee','continuation_weight_max','add_weight','continuation_weight_fee','num_fee']);
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return $logisticsList[0] ?? [];
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}else{
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// 获取物流信息
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$logisticsInfo = Logistics::query()
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->select(['type','first_weight','first_weight_fee','continuation_weight_max','add_weight','continuation_weight_fee','num_fee'])
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->find($logisticsId)
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->toArray();
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return $logisticsInfo;
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}
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}
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/**
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* Common: 运费计算 - 物流运费 - 运费计算(按重量计费)
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* Author: wu-hui
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* Time: 2023/08/22 15:34
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* @param $logisticsInfo
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* @param $productsList
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* @return float|int
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*/
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private static function compute_weight($logisticsInfo,$productsList){
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/**
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* 计算规则：
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* 总重量 - 低于首重；则运费 = 【首重运费】
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* 总重量 - 高于首重；则运费 = 首重按照【首重运费】计算；（剩余重量 / 每增加重量 ） * 续重运费
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*/
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$amount = (int)0;
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$firstWeight = (int)$logisticsInfo['first_weight'];// 首重
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$firstWeightFee = (float)$logisticsInfo['first_weight_fee'];// 首重运费
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$addWeight = (int)$logisticsInfo['add_weight'];// 每增加重量
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$continuationWeightFee = (float)$logisticsInfo['continuation_weight_fee'];// 续重运费
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// 循环处理商品
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foreach($productsList as $productInfo){
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// 首重运费
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$amount += (float)sprintf("%.2f",$firstWeightFee);
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// 判断：如果总重量超过首重 则计算续重运费
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$surplus = (int)$productInfo['sum_weight'] - $firstWeight;
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if($surplus > 0) $amount += (float)sprintf("%.2f",($surplus / $addWeight) * $continuationWeightFee);
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}
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return $amount;
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}
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/**
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* Common: 运费计算 - 物流运费 - 运费计算(按数量计费)
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* Author: wu-hui
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* Time: 2023/08/22 14:47
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* @param $logisticsInfo
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* @param $productsList
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* @return float|int
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*/
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private static function compute_num($logisticsInfo,$productsList){
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/**
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* 计算规则：
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* 购买数量 - 低于首件数量；则运费 = 【首件运费】
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* 购买数量 - 高于首件数量；则运费 = 首件数量按照【首件运费】计算；（剩余购买数量 / 每增加件数量 ） * 续件运费
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*/
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$amount = (int)0;
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$firstWeight = (int)$logisticsInfo['first_weight'];// 首件数量
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$firstWeightFee = (float)$logisticsInfo['first_weight_fee'];// 首件运费
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$addWeight = (int)$logisticsInfo['add_weight'];// 每增加件
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$continuationWeightFee = (float)$logisticsInfo['continuation_weight_fee'];// 续件运费
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// 循环处理商品
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foreach($productsList as $productInfo){
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// 首件运费
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$amount += (float)sprintf("%.2f",$firstWeightFee);
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// 判断：如果数量超过首件数量 则计算续件运费
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$surplus = (int)$productInfo['sum_quantity'] - $firstWeight;
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if($surplus > 0) $amount += (float)sprintf("%.2f",($surplus / $addWeight) * $continuationWeightFee);
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}
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return $amount;
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}
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/**
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* Common: 运费计算 - 物流运费 - 运费计算(卖家包邮)
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* Author: wu-hui
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* Time: 2023/08/22 11:59
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* @param $logisticsInfo
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* @param $productsList
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* @return int
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*/
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private static function compute_free($logisticsInfo,$productsList){
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return 0;
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}
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/**
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* 通过配送方式获取插件编码
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*
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* @param $shippingMethod
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* @return string
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*/
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public static function parseShippingPluginCode($shippingMethod): string
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{
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$methodArray = explode('.', $shippingMethod);
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return $methodArray[0];
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}
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}
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