<?php
namespace common\components\delivery\platform\didi;

use common\components\delivery\helpers\HttpClient;

class Didi
{
    protected $baseUrl;
    protected $appKey;    // URL参数中的appKey
    protected $appId;     // Body参数中的appId
    protected $appSecret; // 签名用的secret
    protected $accessToken;
    protected $thirdUid;
    protected $apiVersion = '1.0.0';

    public function __construct($accessToken = '', $thirdUid='')
    {
        if (getenv('YII_ENV') == 'production') {
            $cfg = [
                'base_url' => 'https://freight.xiaojukeji.com',
                'app_key' => '6724e08ff1ac4afdbf1c000cfe722449',
                'app_id' => 'MDdovjIS',
                'secret' => 'b61603625ebcf69a6364fdc30ae47944630c738c',
            ];
        } else {
            $cfg = [
                'base_url' => 'http://pinzhi.didichuxing.com/kop_osim',
                'app_key' => '4329d266f40144829ca5fd47a025e106',
                'app_id' => 'MDdovjIS',
                'secret' => 'b61603625ebcf69a6364fdc30ae47944630c738c',
            ];
        }
        $this->baseUrl = $cfg['base_url'];
        $this->appKey = $cfg['app_key'];
        $this->appId = $cfg['app_id'];
        $this->appSecret = $cfg['secret'];
        $this->accessToken = $accessToken;
        $this->thirdUid = $thirdUid;
    }

    /**
     * 开通城市查询
     * @param int|null $cityId 城市id（城市编码，经纬度二传一） 国标码
     * @param float|null $longitude 经度 火星坐标系（高德）
     * @param float|null $latitude 纬度 火星坐标系（高德）
     * @return array
     */
    public function queryCityInfo($cityId = null, $longitude = null, $latitude = null)
    {
        // 暂时仅支持快送业务查询，bizType 固定为 12
        $businessParams = [
            'bizType' => 12,
        ];

        if (!empty($cityId)) {
            $businessParams['cityId'] = (int)$cityId;
        }

        // 拉货有城市开城但部分区域不支持的情况，如不传经纬度则按照城市返回
        if (!empty($longitude) && !empty($latitude)) {
            $businessParams['longitude'] = (float)$longitude;
            $businessParams['latitude'] = (float)$latitude;
        }

        $payload = $this->buildRequestPayload($businessParams);
        $url = $this->getApiUrl('freight.open.platform.channel.standard.queryCityInfo');
        $headers = ["Content-Type" => "application/x-www-form-urlencoded"];

        $resp =HttpClient::post($url, $payload, $headers);
        if($resp['code'] == 200 && isset($resp['result'])){
            return $resp['result'];
        }

        return [];
    }

    /**
     * 查询钱包余额
     * @return array
     */
    public function walletBalance()
    {
        $payload = $this->buildRequestPayload([]);
        $url = $this->getApiUrl('freight.open.platform.channel.standard.walletBalance');
        $headers = ["Content-Type" => "application/x-www-form-urlencoded"];

        $resp = HttpClient::post($url, $payload, $headers);
        if ($resp['code'] == 200 && isset($resp['data']['balance'])) {
            return [
                'success' => true,
                'balance' => round($resp['data']['balance'], 2),
                'message' => $resp['msg'] ?? '查询余额成功',
            ];
        }

        return [
            'success' => false,
            'balance' => 0,
            'message' => $resp['msg'] ?? '查询余额失败',
        ];
    }

    /**
     * 构建API请求参数
     *
     * @param array $businessParams 业务参数
     * @return array
     */
    public function buildRequestPayload($businessParams = [])
    {
        // 1. 准备公共参数
        $timestamp = (int)(microtime(true) * 1000); // 毫秒级时间戳
        // 2. 处理业务参数 logisticsParam (JSON字符串)
        $logisticsParam = json_encode($businessParams, JSON_UNESCAPED_UNICODE); // 注意：根据文档，logisticsParam 是 json 字符串
        // 3. 生成签名
        $sign = $this->generateSignature($logisticsParam, $timestamp);
        // 4. 构建最终请求体
        $payload = [
            'appId' => $this->appId,
            'timestamp' => $timestamp,
            'appSign' => $sign,
            'logisticsParam' => $logisticsParam,
        ];

        // Token 可选，如果存在则添加
        if (!empty($this->accessToken)) {
            $payload['token'] = $this->accessToken;
        }

        // 默认自主模式 businessMode=0，如果有需要可扩展
        // $payload['businessMode'] = 0;

        return $payload;
    }

    /**
     * 生成签名
     * 签名规则：MD5(logisticsParam + secret + timestamp)
     * 
     * @param string $logisticsParam json字符串
     * @param int $timestamp 毫秒时间戳
     * @return string
     */
    public function generateSignature($logisticsParam, $timestamp)
    {
        $str = $logisticsParam . $this->appSecret . $timestamp;
        return md5($str);
    }

    /**
     * 获取完整的API请求URL
     *
     * @param string $apiMethod API名称
     * @return string
     */
    public function getApiUrl($apiMethod)
    {
        // url格式：{host}/gateway?api=xxx&apiVersion=1.0.0&appKey=xxx
        $queryParams = [
            'api' => $apiMethod,
            'apiVersion' => $this->apiVersion,
            'appKey' => $this->appKey,
        ];
        
        return $this->baseUrl . '/gateway?' . http_build_query($queryParams);
    }

    /**
     * 生成唯一的跑腿订单号
     * @param $orderId
     * @return string
     */
    public static function generateUniOroder($orderId, $timeStamp)
    {
        return $orderId . '-' . $timeStamp;
    }

    /**
     * 还原为数据库中的订单号
     * @param $orderId
     * @return false|string
     */
    public static function getSystemOrder($orderId)
    {
        $pos = strpos($orderId, '-');
        if ($pos !== false) {               // 确实找到了
            $left  = substr($orderId, 0, $pos); // a-b-c
            $right = substr($orderId, $pos + 1); // d
        } else {
            $left = $orderId;   // 没有 -
            $right = '';
        }

        return $left;
    }

    /**
     * 车型
     * @param $number 车型编号
     * @return string
     */
    public function carType($number)
    {
        $map = [
            //拉货车型
            1001 => '小面包',
            1002 => '中面包',
            1003 => '小型平板',
            1004 => '中型平板',
            1005 => '4.2米平板',
            1006 => '依维柯',
            1007 => '4.2米厢货',
            1008 => '5.2米货车',
            1009 => '6.8米货车',
            1010 => '7.6米货车',
            1011 => '13米货车',
            1012 => '微面',
            1013 => '小厢货',
            1014 => '中厢货',
            1015 => '小高栏',
            1016 => '4.2米高栏',
            1019 => '9.6米货车',
            1020 => '三轮车',
            1022 => '集装箱卡车',
            1023 => '微平板',
            1024 => '微厢货',
            1025 => '微高栏',
            1026 => '中高栏',
            1028 => '17.5米',
            1029 => '16米',
            1030 => '15米',
            1031 => '13.5米',
            //快送车型 
            1017 => '小轿车',
            1018 => '两轮车',
        ];

        return isset($map[$number]) ? $map[$number] : $number;
    }
}