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

use common\components\delivery\helpers\SignHelper;
use Yii;

class Fengniao
{
    protected $baseUrl;
    protected $appId;
    protected $appSecret;
    protected $merchantId;
    protected $shopId;
    protected $accessToken;
    protected $apiVersion = '1.0';

    public function __construct($accessToken = '')
    {
        // 根据环境设置基础URL
        if (getenv('YII_ENV') == 'production') {
            $this->baseUrl = 'https://open-anubis.ele.me/anubis-webapi/v3/invoke';
        } else {
            $this->baseUrl = 'https://exam-anubis.ele.me/anubis-webapi/v3/invoke';
        }

        // 配置信息（从Auth类获取）
        $this->appId = '6587209115185920913';
        $this->appSecret = '3f935d5f-bf65-467e-a61c-72cfb1d53960';
        $this->accessToken = $accessToken;
    }

    /**
     * 设置商户ID
     *
     * @param string $merchantId 商户ID
     * @return $this
     */
    public function setMerchantId($merchantId)
    {
        $this->merchantId = $merchantId;
        return $this;
    }

    /**
     * 设置门店ID
     *
     * @param string $shopId 门店ID
     * @return $this
     */
    public function setShopId($shopId)
    {
        $this->shopId = $shopId;
        return $this;
    }

    /**
     * 获取门店ID
     *
     * @return int $shopId
     */
    public function getShopId()
    {
        return $this->shopId;
    }

    /**
     * 构建API请求参数
     *
     * 根据蜂鸟API规范构建完整的请求参数，包括签名
     *
     * @param string $method API方法名
     * @param array $businessData 业务参数
     * @return array 完整的请求参数
     */
    protected function buildRequestPayload($method, $businessData = [])
    {
        // 生成时间戳（毫秒）
        $timestamp = (string)(time() * 1000);

        // 构建参数
        $payload = [
            'app_id' => $this->appId,
            'timestamp' => $timestamp,
            'merchant_id' => $this->merchantId,
            'access_token' => $this->accessToken,
            'business_data' => json_encode($businessData, JSON_UNESCAPED_UNICODE),
            'version' => $this->apiVersion,
        ];

        // 计算签名
        $signature = $this->generateSignature($payload);
        $payload['signature'] = $signature;

        return $payload;
    }

    /**
     * 生成签名
     *
     * 根据蜂鸟API规范：
     * 签名计算：先按 key 排序，拼接成字符串，前面加上 appSecret，使用 SHA-256 加密
     *
     * @param array $params 待签名参数（不包括signature）
     * @return string 签名值
     */
    public function generateSignature(array $params)
    {
        // Step 1: 过滤空值  --  不能清除，不然测试环境 code 就被排除了
        // $params = array_filter($params, function ($v) {
        //     return $v !== null && $v !== '';
        // });

        // Step 2: 按字典序排序
        ksort($params);

        // Step 3: 拼接成字符串
        $paramStr = '';
        foreach ($params as $key => $value) {
            $paramStr .= "{$key}={$value}&";
        }
        $paramStr = rtrim($paramStr, '&');

        // Step 4: 拼接 appSecret
        $signBefore = $this->appSecret . $paramStr;
      
        // Step 5: 使用SHA-256加密
        $signature = hash('sha256', $signBefore);

        // Yii::info("[FengniaAuth] Sign Before: {$signBefore}, Signature: {$signature}");
        return $signature;
    }

    public function second_geneSignature(array $params)
    {
        $signature = strtolower(SignHelper::makeSign($params, $this->appSecret, 'sha256', true, 'fengniao'));
        return $signature;
    }
}