497 行
18 KiB
PHP
497 行
18 KiB
PHP
<?php
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namespace Retail\Service;
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/**
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* 配送费用计算服务
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* Class DeliveryFeeService
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* @package Retail\Service
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*/
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class DeliveryFeeService
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{
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private $merchantId;
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private $config;
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private $mapConfig;
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public function __construct($merchantId)
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{
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$this->merchantId = $merchantId;
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$this->loadConfig();
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$this->loadMapConfig();
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}
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/**
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* 加载配置
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*/
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private function loadConfig()
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{
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$configModel = M('RiderConfig');
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$this->config = $configModel->where(array('merchant_id' => $this->merchantId))->find();
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if (!$this->config) {
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// 使用默认配置
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$this->config = array(
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'delivery_fee_type' => 1,
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'base_fee' => 5.00,
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'distance_fee' => 1.50,
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'free_distance' => 3,
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'max_distance' => 20,
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'time_fee_enabled' => 0,
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'night_fee_rate' => 0.5,
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'night_start_time' => '22:00',
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'night_end_time' => '06:00',
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'weather_fee_enabled' => 0,
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'weather_fee_rate' => 1.0,
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'urgent_fee_enabled' => 1,
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'urgent_fee' => 3.00,
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'min_order_amount' => 20.00,
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'packaging_fee' => 2.00
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);
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}
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}
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/**
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* 加载地图配置与密钥
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*/
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private function loadMapConfig()
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{
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// 与 getAddress 同源的配置表
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// 包含 server_map_type: 1=百度 2=高德 3=腾讯
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// 以及对应的 serverkeyid/gould_key/tencent_key
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$this->mapConfig = M('sms_config')->find();
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if (!is_array($this->mapConfig)) {
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$this->mapConfig = array(
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'server_map_type' => '2',
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'serverkeyid' => '',
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'gould_key' => '',
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'tencent_key' => ''
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);
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}
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}
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/**
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* 计算两点间距离（使用百度地图API或高德地图API）
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* @param float $lat1 起点纬度
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* @param float $lng1 起点经度
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* @param float $lat2 终点纬度
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* @param float $lng2 终点经度
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* @return float 距离(公里)
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*/
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public function calculateDistance($lat1, $lng1, $lat2, $lng2)
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{
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// 使用Haversine公式计算球面距离
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$earthRadius = 6371; // 地球半径(公里)
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$lat1Rad = deg2rad($lat1);
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$lng1Rad = deg2rad($lng1);
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$lat2Rad = deg2rad($lat2);
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$lng2Rad = deg2rad($lng2);
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$deltaLat = $lat2Rad - $lat1Rad;
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$deltaLng = $lng2Rad - $lng1Rad;
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$a = sin($deltaLat / 2) * sin($deltaLat / 2) +
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cos($lat1Rad) * cos($lat2Rad) *
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sin($deltaLng / 2) * sin($deltaLng / 2);
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$c = 2 * atan2(sqrt($a), sqrt(1 - $a));
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$distance = $earthRadius * $c;
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return round($distance, 2);
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}
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/**
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* 使用地图API计算路线距离（默认骑行距离），自动根据 server_map_type 选择服务商
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* 若API失败则回退到直线距离
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* @param float $lat1 起点纬度(GCJ02)
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* @param float $lng1 起点经度(GCJ02)
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* @param float $lat2 终点纬度(GCJ02)
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* @param float $lng2 终点经度(GCJ02)
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* @param string $mode 路线模式，支持 'bicycling'
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* @return float 距离(公里)
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*/
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public function calculateRouteDistance($lat1, $lng1, $lat2, $lng2, $mode = 'bicycling')
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{
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try {
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$type = isset($this->mapConfig['server_map_type']) ? (string)$this->mapConfig['server_map_type'] : '2';
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$distanceMeters = 0;
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switch ($type) {
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case '1':
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// 百度（坐标需使用BD09）
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// 输入为GCJ02，转换为BD09
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$o = \Convert_GCJ02_To_BD09($lat1, $lng1);
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$d = \Convert_GCJ02_To_BD09($lat2, $lng2);
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$ak = $this->mapConfig['serverkeyid'];
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if (empty($ak)) { break; }
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// 百度骑行路线API
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$url = 'http://api.map.baidu.com/direction/v2/riding?origin=' . $o['lat'] . ',' . $o['lng'] . '&destination=' . $d['lat'] . ',' . $d['lng'] . '&ak=' . $ak;
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$resp = @file_get_contents($url);
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if ($resp) {
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$json = json_decode($resp, true);
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if (is_array($json) && isset($json['status']) && intval($json['status']) === 0) {
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// routes[0].distance 单位：米
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if (isset($json['result']['routes'][0]['distance'])) {
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$distanceMeters = floatval($json['result']['routes'][0]['distance']);
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}
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}
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}
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break;
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case '2':
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// 高德（GCJ02，origin/destination 为 lng,lat）
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$key = $this->mapConfig['gould_key'];
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if (empty($key)) { break; }
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// 高德骑行路线 v4
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$url = 'https://restapi.amap.com/v4/direction/bicycling?origin=' . $lng1 . ',' . $lat1 . '&destination=' . $lng2 . ',' . $lat2 . '&key=' . $key;
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$resp = @file_get_contents($url);
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if ($resp) {
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$json = json_decode($resp, true);
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// 兼容可能的返回结构
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if (isset($json['errcode']) && intval($json['errcode']) === 0 && isset($json['data']['paths'][0]['distance'])) {
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$distanceMeters = floatval($json['data']['paths'][0]['distance']);
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} elseif (isset($json['data']['paths']) && isset($json['data']['paths'][0]['distance'])) {
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$distanceMeters = floatval($json['data']['paths'][0]['distance']);
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} elseif (isset($json['paths'][0]['distance'])) {
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$distanceMeters = floatval($json['paths'][0]['distance']);
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}
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}
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break;
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case '3':
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// 腾讯（GCJ02，from/to 为 lat,lng）
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$key = $this->mapConfig['tencent_key'];
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if (empty($key)) { break; }
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$url = 'https://apis.map.qq.com/ws/direction/v1/bicycling/?from=' . $lat1 . ',' . $lng1 . '&to=' . $lat2 . ',' . $lng2 . '&key=' . $key;
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$resp = @file_get_contents($url);
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if ($resp) {
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$json = json_decode($resp, true);
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if (is_array($json) && isset($json['status']) && intval($json['status']) === 0) {
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if (isset($json['result']['routes'][0]['distance'])) {
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$distanceMeters = floatval($json['result']['routes'][0]['distance']);
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}
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}
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}
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break;
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default:
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// 未知类型，走回退
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break;
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}
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if ($distanceMeters > 0) {
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return round($distanceMeters / 1000, 3);
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}
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} catch (\Exception $e) {
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// 忽略并回退到直线距离
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}
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// 回退：使用直线距离
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return $this->calculateDistance($lat1, $lng1, $lat2, $lng2);
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}
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/**
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* 通过地址计算距离
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* @param string $fromAddress 起始地址
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* @param string $toAddress 目标地址
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* @return array
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*/
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public function calculateDistanceByAddress($fromAddress, $toAddress)
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{
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// 这里可以调用百度地图或高德地图的地理编码API
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// 将地址转换为经纬度，然后计算距离
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// 示例：模拟API调用
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$fromCoords = $this->geocodeAddress($fromAddress);
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$toCoords = $this->geocodeAddress($toAddress);
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if (!$fromCoords || !$toCoords) {
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return array(
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'success' => false,
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'message' => '地址解析失败',
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'distance' => 0
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);
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}
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$distance = $this->calculateDistance(
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$fromCoords['lat'], $fromCoords['lng'],
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$toCoords['lat'], $toCoords['lng']
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);
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return array(
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'success' => true,
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'distance' => $distance,
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'from_coords' => $fromCoords,
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'to_coords' => $toCoords
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);
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}
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/**
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* 地址地理编码（需要接入地图API）
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* @param string $address
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* @return array|false
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*/
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private function geocodeAddress($address)
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{
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// 这里应该调用实际的地图API
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// 示例返回格式
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return array(
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'lat' => 39.915119,
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'lng' => 116.403963,
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'formatted_address' => $address
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);
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}
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/**
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* 计算配送费用
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* @param array $params 参数数组
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* @return array
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*/
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public function calculateDeliveryFee($params)
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{
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$distance = floatval($params['distance']);
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$orderAmount = floatval($params['order_amount']);
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$isUrgent = isset($params['is_urgent']) ? intval($params['is_urgent']) : 0;
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$isNight = isset($params['is_night']) ? intval($params['is_night']) : $this->isNightTime();
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$isBadWeather = isset($params['is_bad_weather']) ? intval($params['is_bad_weather']) : 0;
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// 验证配送距离
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if ($distance > $this->config['max_distance']) {
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return array(
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'success' => false,
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'message' => '超出最大配送距离(' . $this->config['max_distance'] . '公里)',
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'delivery_fee' => 0
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);
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}
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// 验证最小起送金额
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if ($orderAmount < $this->config['min_order_amount']) {
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return array(
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'success' => false,
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'message' => '未达到最小起送金额(' . $this->config['min_order_amount'] . '元)',
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'delivery_fee' => 0
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);
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}
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$deliveryFee = 0;
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$feeDetails = array();
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// 基础配送费计算
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switch ($this->config['delivery_fee_type']) {
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case 1: // 按距离计算
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if ($distance <= $this->config['free_distance']) {
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$deliveryFee = $this->config['base_fee'];
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$feeDetails[] = array(
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'type' => 'base_fee',
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'name' => '基础费用',
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'amount' => $this->config['base_fee'],
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'description' => '免费配送距离内'
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);
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} else {
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$extraDistance = $distance - $this->config['free_distance'];
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$distanceFee = $extraDistance * $this->config['distance_fee'];
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$deliveryFee = $this->config['base_fee'] + $distanceFee;
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$feeDetails[] = array(
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'type' => 'base_fee',
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'name' => '基础费用',
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'amount' => $this->config['base_fee'],
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'description' => '基础配送费'
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);
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$feeDetails[] = array(
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'type' => 'distance_fee',
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'name' => '距离费用',
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'amount' => $distanceFee,
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'description' => $extraDistance . '公里 × ' . $this->config['distance_fee'] . '元/公里'
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);
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}
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break;
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case 2: // 固定费用
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$deliveryFee = $this->config['base_fee'];
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$feeDetails[] = array(
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'type' => 'fixed_fee',
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'name' => '固定配送费',
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'amount' => $this->config['base_fee'],
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'description' => '统一配送费用'
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);
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break;
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case 3: // 阶梯计费
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$deliveryFee = $this->calculateTieredFee($distance);
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$feeDetails[] = array(
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'type' => 'tiered_fee',
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'name' => '阶梯计费',
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'amount' => $deliveryFee,
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'description' => '根据距离阶梯计费'
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);
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break;
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}
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// 包装费
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if ($this->config['packaging_fee'] > 0) {
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$deliveryFee += $this->config['packaging_fee'];
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$feeDetails[] = array(
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'type' => 'packaging_fee',
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'name' => '包装费',
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'amount' => $this->config['packaging_fee'],
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'description' => '商品包装费用'
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);
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}
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// 加急费
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if ($isUrgent && $this->config['urgent_fee_enabled']) {
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$deliveryFee += $this->config['urgent_fee'];
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$feeDetails[] = array(
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'type' => 'urgent_fee',
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'name' => '加急费',
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'amount' => $this->config['urgent_fee'],
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'description' => '加急配送费用'
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);
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}
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// 夜间加价
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if ($isNight && $this->config['time_fee_enabled']) {
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$nightFee = $deliveryFee * $this->config['night_fee_rate'];
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$deliveryFee += $nightFee;
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$feeDetails[] = array(
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'type' => 'night_fee',
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'name' => '夜间加价',
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'amount' => $nightFee,
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'description' => '夜间配送加价 ' . ($this->config['night_fee_rate'] * 100) . '%'
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);
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}
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// 恶劣天气加价
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if ($isBadWeather && $this->config['weather_fee_enabled']) {
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$weatherFee = $this->config['weather_fee_rate'];
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$deliveryFee += $weatherFee;
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$feeDetails[] = array(
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'type' => 'weather_fee',
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'name' => '恶劣天气加价',
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'amount' => $weatherFee,
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'description' => '恶劣天气配送加价'
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);
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}
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return array(
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'success' => true,
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'delivery_fee' => round($deliveryFee, 2),
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'fee_details' => $feeDetails,
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'distance' => $distance,
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'order_amount' => $orderAmount,
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'config' => array(
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'max_distance' => $this->config['max_distance'],
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'min_order_amount' => $this->config['min_order_amount'],
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'free_distance' => $this->config['free_distance']
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)
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);
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}
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/**
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* 阶梯计费计算
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* @param float $distance
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* @return float
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*/
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private function calculateTieredFee($distance)
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{
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// 阶梯计费规则示例
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$tiers = array(
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array('min' => 0, 'max' => 3, 'fee' => 5.00),
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array('min' => 3, 'max' => 8, 'fee' => 8.00),
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array('min' => 8, 'max' => 15, 'fee' => 12.00),
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array('min' => 15, 'max' => 999, 'fee' => 18.00)
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);
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foreach ($tiers as $tier) {
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if ($distance >= $tier['min'] && $distance < $tier['max']) {
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return $tier['fee'];
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}
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}
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return $this->config['base_fee'];
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}
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/**
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* 判断是否为夜间时间
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* @return bool
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*/
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private function isNightTime()
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{
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$currentTime = date('H:i');
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$nightStart = $this->config['night_start_time'];
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$nightEnd = $this->config['night_end_time'];
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// 处理跨天的情况
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if ($nightStart > $nightEnd) {
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return $currentTime >= $nightStart || $currentTime <= $nightEnd;
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} else {
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return $currentTime >= $nightStart && $currentTime <= $nightEnd;
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}
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}
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/**
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* 获取配送费用预估
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* @param string $fromAddress 起始地址
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* @param string $toAddress 目标地址
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* @param float $orderAmount 订单金额
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* @param array $options 其他选项
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* @return array
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*/
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public function estimateDeliveryFee($fromAddress, $toAddress, $orderAmount, $options = array())
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{
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// 计算距离
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$distanceResult = $this->calculateDistanceByAddress($fromAddress, $toAddress);
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if (!$distanceResult['success']) {
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return $distanceResult;
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}
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// 计算费用
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$params = array(
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'distance' => $distanceResult['distance'],
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'order_amount' => $orderAmount,
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'is_urgent' => isset($options['is_urgent']) ? $options['is_urgent'] : 0,
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'is_night' => isset($options['is_night']) ? $options['is_night'] : $this->isNightTime(),
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'is_bad_weather' => isset($options['is_bad_weather']) ? $options['is_bad_weather'] : 0
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);
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$feeResult = $this->calculateDeliveryFee($params);
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if ($feeResult['success']) {
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$feeResult['distance_info'] = $distanceResult;
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}
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return $feeResult;
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}
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/**
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* 获取配置信息
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* @return array
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*/
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public function getConfig()
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{
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return $this->config;
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}
|
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/**
|
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* 验证配送可行性
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* @param array $params
|
||
* @return array
|
||
*/
|
||
public function validateDelivery($params)
|
||
{
|
||
$distance = floatval($params['distance']);
|
||
$orderAmount = floatval($params['order_amount']);
|
||
|
||
$errors = array();
|
||
|
||
if ($distance > $this->config['max_distance']) {
|
||
$errors[] = '配送距离超出限制（最大' . $this->config['max_distance'] . '公里）';
|
||
}
|
||
|
||
if ($orderAmount < $this->config['min_order_amount']) {
|
||
$errors[] = '订单金额未达到起送标准（最低' . $this->config['min_order_amount'] . '元）';
|
||
}
|
||
|
||
return array(
|
||
'valid' => empty($errors),
|
||
'errors' => $errors,
|
||
'distance' => $distance,
|
||
'order_amount' => $orderAmount
|
||
);
|
||
}
|
||
} |