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

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

class Auth
{
    // 授权端点
    const AUTHORIZE_URL = 'https://openic.sf-express.com/artascope/cx/receipt/getpage/product/artascope/page/storeBinding';
    const TOKEN_URL = '';

    protected $appKey;//appId
    protected $appSecret;
    protected $redirectUri;
    protected $isSandbox;

    /**
     * 初始化授权类
     * 根据环境获取配置信息
     */
    public function __construct()
    {
        $isProduction = getenv('YII_ENV') == 'production';

        if ($isProduction) {
            $this->appKey = 1594082399;
            $this->appSecret = '9025c4f5ad93e8e08e947f02d0cde652';
        } else {
            $this->appKey = 1741530942;
            $this->appSecret = '07b3f83d19a4a9f89322976c936faf92';
        }

        // 根据环境设置沙箱标志
        $this->isSandbox = !$isProduction;
    }

    /**
     * 设置重定向URI
     * 需要进行URLEncode编码
     *
     * @param string $redirectUri 重定向地址
     */
    public function setRedirectUri($redirectUri)
    {
        $this->redirectUri = $redirectUri;
        return $this;
    }

    /**
     * 生成授权URL
     * 用户需要通过浏览器访问此URL进行授权
     *
     * @param string $redirectUri 重定向地址（回调地址）
     * @return string 授权URL
     */
    public function generateAuthUrl($mainId)
    {
        $params = [
            'dev_id' => $this->appKey,
            'out_shop_id' => $mainId,
        ];

        // 构建URL
        $queryString = http_build_query($params);
        return self::AUTHORIZE_URL . '?' . $queryString;
    }

    /**
     * 获取AccessToken
     * 使用授权码换取令牌
     *
     * 文档：/oauth/token (GET请求)
     * 入参：grant_type, client_id, code, isSandbox
     * 出参：access_token, refresh_token, expires_in
     *
     * @param string $code 授权码（来自授权页面重定向）
     * @return array 返回格式：['success' => true/false, 'access_token' => '', 'refresh_token' => '', 'expires_in' => 0, 'error' => '']
     */
    public function getAccessToken($code)
    {
        $params = [
            'grant_type' => '',
            'client_id' => $this->appKey,
            'code' => $code,
            'isSandbox' => $this->isSandbox ? 'true' : 'false',
        ];

        $response = HttpClient::get(self::TOKEN_URL, $params);

        Yii::info("[HuoLalaAuthGetToken] Response: " . json_encode($response));

        return $this->parseResponse($response);
    }

    /**
     * 刷新AccessToken
     * 使用刷新令牌获取新的AccessToken
     *
     * 文档：/oauth/token (GET请求)
     * 入参：grant_type, client_id, refresh_token, isSandbox
     * 出参：access_token, refresh_token, expires_in
     *
     * @param string $refreshToken 刷新令牌
     * @return array 返回格式：['success' => true/false, 'access_token' => '', 'refresh_token' => '', 'expires_in' => 0, 'error' => '']
     */
    public function refreshAccessToken($refreshToken)
    {
        $params = [
            'grant_type' => '',
            'client_id' => $this->appKey,
            'refresh_token' => $refreshToken,
            'isSandbox' => $this->isSandbox ? 'true' : 'false',
        ];
        $response = HttpClient::get(self::TOKEN_URL, $params);
        Yii::info("[HuoLalaAuthRefreshToken] Response: " . json_encode($response));
        return $this->parseResponse($response);
    }

    /**
     * 解析API响应
     *
     * 货拉拉 API 返回格式:
     * {
     *     "ret": 0,
     *     "msg": "success",
     *     "data": {
     *         "auth_mobile": "17168665598",
     *         "access_token": "a3207b6b5ad04249ad1dbf6a9824dbea",
     *         "refresh_token": "4ccbbab0e9e443159c518d1d10741ad",
     *         "auth_end_time": "2020-06-07 15:35:08"
     *     }
     * }
     *
     * @param array $response HTTP响应
     * @return array 标准化的响应格式
     */
    protected function parseResponse($response)
    {
        // 检查 ret 字段（0 表示成功）
        if (!isset($response['ret'])) {
            return [
                'success' => false,
                'error' => $response['msg'] ?? '响应格式错误，缺少 ret 字段',
            ];
        }

        // 如果 ret 不等于 0，表示请求失败
        if ($response['ret'] != 0) {
            return [
                'success' => false,
                'error' => $response['msg'] ?? 'API返回异常',
                'ret' => $response['ret'],
            ];
        }

        // 提取 data 字段中的数据
        $data = $response['data'] ?? [];

        // 检查是否包含必需的token信息
        if (empty($data['access_token'])) {
            return [
                'success' => false,
                'error' => $response['msg'] ?? '未获取到 access_token',
            ];
        }

        // 成功响应
        return [
            'success' => true,
            'access_token' => $data['access_token'] ?? '',
            'refresh_token' => $data['refresh_token'] ?? '',
            'auth_mobile' => $data['auth_mobile'] ?? '',
            'auth_end_time' => $data['auth_end_time'] ?? '',
        ];
    }

    /**
     * 获取AppKey
     *
     * @return string
     */
    public function getAppKey()
    {
        return $this->appKey;
    }

    /**
     * 获取AppSecret
     *
     * @return string
     */
    public function getAppSecret()
    {
        return $this->appSecret;
    }

    /**
     * 获取是否为沙箱环境
     *
     * @return bool
     */
    public function isSandbox()
    {
        return $this->isSandbox;
    }
}