<?php
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namespace app\common\service\delivery;
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use app\common\library\helper;
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use app\common\model\settings\Setting as SettingModel;
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use app\common\enum\order\OrderTypeEnum;
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/**
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* 快递配送服务类
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*/
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class ExpressService
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{
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private $appId; // 商城id
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private $cityId; // 用户收货城市id
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private $productList; // 订单商品列表
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private $orderType; // 订单类型 (主商城、拼团)
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/**
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* 配送服务类构造方法
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*/
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public function __construct(
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$appId,
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$cityId,
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$productList,
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$orderType = OrderTypeEnum::MASTER
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)
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{
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$this->appId = $appId;
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$this->cityId = $cityId;
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$this->productList = $productList;
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$this->orderType = $orderType;
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}
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/**
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* 根据用户收货城市id 验证是否在商品配送规则中
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*/
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public function getNotInRuleProduct()
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{
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if ($this->cityId) {
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foreach ($this->productList as &$product) {
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if($product['is_virtual'] == 1||$product['is_virtual'] == 3){
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continue;
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}
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if($product['delivery_id'] == 0){
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continue;
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}
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$cityIds = [];
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foreach ($product['delivery']['rule'] as $item)
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$cityIds = array_merge($cityIds, $item['region_data']);
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if (!in_array($this->cityId, $cityIds))
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return $product;
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}
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}
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return false;
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}
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/**
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* 设置订单商品的运费
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*/
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public function setExpressPrice()
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{
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// 订单商品总金额
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$orderTotalPrice = helper::getArrayColumnSum($this->productList, 'total_price');
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foreach ($this->productList as &$product) {
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// 如果是虚拟物品，则为0
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if($product['is_virtual'] == 1 || $product['is_virtual'] == 3){
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$product['express_price'] = 0;
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}else if($product['delivery_id'] == 0){
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// 包邮
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$product['express_price'] = 0;
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}else {
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$product['express_price'] = $this->onCalcProductfreight($product, $orderTotalPrice);
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}
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}
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return true;
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}
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/**
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* 获取订单最终运费
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*/
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public function getTotalFreight()
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{
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if (empty($this->productList)) {
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return 0.00;
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}
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// 所有商品的运费金额
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$expressPriceArr = helper::getArrayColumn($this->productList, 'express_price');
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if (empty($expressPriceArr)) {
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return 0.00;
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}
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// 计算最终运费
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return $this->freightRule($expressPriceArr);
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}
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/**
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* 计算商品的配送费用
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*/
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private function onCalcProductfreight(&$product, $orderTotalPrice)
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{
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// 判断是否满足满额包邮条件
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if ($this->isFullFree($product['product_id'], $orderTotalPrice, $product['shop_supplier_id'])) {
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return 0.00;
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}
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// 当前收货城市配送规则
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$rule = $this->getCityDeliveryRule($product);
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// 商品总重量
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$totalWeight = helper::bcmul($product['product_sku']['product_weight'], $product['total_num']);
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// 商品总数量or总重量
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$total = $product['delivery']['method']['value'] == 10 ? $product['total_num'] : $totalWeight;
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if ($total <= $rule['first']) {
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return helper::number2($rule['first_fee']);
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}
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// 续件or续重 数量
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$additional = $total - $rule['first'];
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if ($additional <= $rule['additional']) {
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return helper::number2(helper::bcadd($rule['first_fee'], $rule['additional_fee']));
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}
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// 计算续重/件金额
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if ($rule['additional'] < 1) {
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// 配送规则中续件为0
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$additionalFee = 0.00;
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} else {
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$additionalFee = helper::bcdiv($rule['additional_fee'], $rule['additional']) * $additional;
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}
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return helper::number2(helper::bcadd($rule['first_fee'], $additionalFee));
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}
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/**
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* 判断是否满足满额包邮条件
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*/
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private function isFullFree($productId, $orderTotalPrice, $shop_supplier_id)
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{
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// 非商城主订单不参与满额包邮
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if ($this->orderType !== OrderTypeEnum::MASTER) {
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return false;
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}
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// 获取满额包邮设置
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$options = SettingModel::getSupplierItem('full_free',$shop_supplier_id, $this->appId);
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if (
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$options['is_open'] == false
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|| $orderTotalPrice < $options['money']
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) {
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return false;
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}
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return true;
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}
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/**
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* 根据城市id获取规则信息
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*/
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private function getCityDeliveryRule(&$product)
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{
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foreach ($product['delivery']['rule'] as $item) {
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if (in_array($this->cityId, $item['region_data'])) {
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return $item;
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}
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}
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return false;
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}
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/**
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* 根据运费组合策略 计算最终运费
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*/
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private function freightRule($expressPriceArr)
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{
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$expressPrice = 0.00;
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switch (SettingModel::getItem('trade', $this->appId)['freight_rule']) {
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case '10': // 策略1: 叠加
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$expressPrice = array_sum($expressPriceArr);
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break;
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case '20': // 策略2: 以最低运费结算
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$expressPrice = min($expressPriceArr);
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break;
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case '30': // 策略3: 以最高运费结算
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$expressPrice = max($expressPriceArr);
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break;
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}
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return $expressPrice;
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}
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}
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