like-shop/application/api/logic/FreightLogic.php
2024-01-16 13:06:20 +08:00

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<?php
// +----------------------------------------------------------------------
// | likeshop开源商城系统
// +----------------------------------------------------------------------
// | 欢迎阅读学习系统程序代码,建议反馈是我们前进的动力
// | gitee下载https://gitee.com/likeshop_gitee
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// | likeshop团队版权所有并拥有最终解释权
// +----------------------------------------------------------------------
// | author: likeshop.cn.team
// +----------------------------------------------------------------------
namespace app\api\logic;
use app\common\model\Freight;
use think\Db;
/**
* 运费逻辑
* Class FreightLogic
* @package app\api\logic
*/
class FreightLogic
{
/**
* User: 意象信息科技 mjf
* Desc: 计算运费
* @param $goods
* @param $user_address
* @return float|int
*/
public static function calculateFreight($goods, $user_address)
{
$shipping_price = 0;
$template_list = [];
if (empty($user_address)){
return $shipping_price;
}
foreach ($goods as $good){
//统一邮费
if ($good['free_shipping_type'] == 2){
$shipping_price += round($good['free_shipping'] * $good['goods_num'], 2);
}
//指定运费模板
if ($good['free_shipping_type'] == 3 && $good['free_shipping_template_id'] > 0){
$template_list[$good['free_shipping_template_id']][] = $good;
}
}
foreach ($template_list as $template_id => $template_goods) {
$temp = [];
$temp['template_id'] = $template_id;
$temp['total_volume'] = 0;
$temp['total_weight'] = 0;
$temp['goods_num'] = 0;
foreach ($template_goods as $template_good) {
$temp['total_volume'] += $template_good['volume'] * $template_good['goods_num'];
$temp['total_weight'] += $template_good['weight'] * $template_good['goods_num'];
$temp['goods_num'] += $template_good['goods_num'];
}
$shipping_price += self::calculate($temp, $user_address);
}
return $shipping_price;
}
/**
* User: 意象信息科技 mjf
* Desc: 计算运费
* @param $data
* @param $user_address
* @return float|int
*/
public static function calculate($data, $user_address)
{
$shipping_price = 0;
$freight = FreightLogic::getFreightsByAddress($data['template_id'], $user_address);
if (empty($freight)){
return $shipping_price;
}
$unit = 0;
//按重量计算
if ($freight['charge_way'] == Freight::CHARGE_WAY_WEIGHT){
$unit = $data['total_weight'];
}
//按件数计算
if ($freight['charge_way'] == Freight::CHARGE_WAY_PIECE){
$unit = $data['goods_num'];
}
//按体积计算
if ($freight['charge_way'] == Freight::CHARGE_WAY_VOLUME){
$unit = $data['total_volume'];
}
if($unit > $freight['first_unit'] && $freight['continue_unit'] > 0){
$left = ceil(($unit - $freight['first_unit']) / $freight['continue_unit']);//取整
return $freight['first_money'] + $left * $freight['continue_money'];
}else{
return $freight['first_money'];
}
}
/**
* User: 意象信息科技 mjf
* Desc: 通过用户地址获取运费模板
* @param $address
*/
public static function getFreightsByAddress($template_id, $address)
{
$district_id = $address['district_id'];
$city_id = $address['city_id'];
$province_id = $address['province_id'];
$freights = Db::name('freight')->alias('f')
->join('freight_config c', 'c.freight_id = f.id')
->where('f.id', $template_id)
->order(['f.id' => 'desc', 'c.id' => 'desc'])
->select();
foreach ($freights as $freight) {
$region_ids = explode(',', $freight['region']);
if (in_array($district_id, $region_ids)) {
return $freight;
}
if (in_array($city_id, $region_ids)) {
return $freight;
}
if (in_array($province_id, $region_ids)) {
return $freight;
}
if ($freight['region'] = 'all'){
$national_freight = $freight;
}
}
//会员的省市区id在商家的运费模板(指定地区)中找不到,查一下商家的全国运费模板
return $national_freight;
}
/**
* User: 意象信息科技 mjf
* Desc: 模板中指定地区id是否存在
* @param $freights
* @param $region_id
* @return bool|mixed
*/
public static function isExistRegionId($freights, $region_id)
{
foreach ($freights as $freight) {
$region_ids = explode(',', $freight['region']);
if (in_array($region_id, $region_ids)) {
return $freight;
}
}
return false;
}
}