<?php

namespace common\components;

use hd\models\IntraCity\StoreFeeForm;
use Yii;
use yii\helpers\Json;
//use linslin\yii2\curl;
use bizHd\wx\classes\WxOpenClass;
use phpseclib\Crypt\RSA;

class IntraCityExpress
{
    /**
     * 获取 access_token
     * @param $merchant
     * @param int $ptStyle
     * @return string
     */
    public static function getAccessToken($merchant, $ptStyle = 0)
    {
        if ($ptStyle == 0) {
            $ptStyle = dict::getDict('ptStyle', 'hd');
        }

        // 直接复用 miniUtil 的获取小程序 access_token 方法
        return miniUtil::getMiniProgramAccessToken($merchant, $ptStyle);
    }

    public static function getMerchant()
    {
        $merchant = WxOpenClass::getWxInfo();
        return $merchant;
    }

    /**
     * 使用 WxApi 方式生成微信API签名
     * @param string $url 请求URL
     * @param string $appId 小程序AppID
     * @param int $timestamp 时间戳
     * @param string $reqData 请求体JSON字符串
     * @return string 签名字符串
     */
    private static function generateWxApiSignature($url, $appId, $timestamp, $reqData)
    {
        // 获取私钥
        $env = getenv('YII_ENV') == 'production' ? 'production' : 'dev';
        $privateKeyPath = __DIR__ . '/wxapi/' . $env . '/rsa-private-key.txt';
        
        if (!file_exists($privateKeyPath)) {
            throw new \Exception("私钥文件不存在: {$privateKeyPath}");
        }
        
        $privateKey = file_get_contents($privateKeyPath);
        if (!$privateKey) {
            throw new \Exception('无法获取私钥文件');
        }

        // 构建签名载荷，格式：$url\n$appId\n$timestamp\n$reqData
        $payload = "$url\n$appId\n$timestamp\n$reqData";


        // 方案一： 使用 OpenSSL（推荐方式，与微信官方示例一致）
        // $signature = '';
        // $result = openssl_sign($payload, $signature, $privateKey, OPENSSL_ALGO_SHA256);
        // if (!$result) {
        //     throw new \Exception('OpenSSL签名失败: ' . openssl_error_string());
        // }
        // $base64Signature = base64_encode($signature);
        // \Yii::info("生成的签名: " . $base64Signature, 'intracity_signature');
        // return $base64Signature;
            

        // 方案二：使用 RSA SHA256签名
        try {
            // 使用RSA SHA256签名
            $rsa = new RSA();
            $rsa->loadKey($privateKey);
            $rsa->setHash("sha256");
            $rsa->setMGFHash("sha256");
            $signature = $rsa->sign($payload);
            
            // $rsa = new RSA();
            // $rsa->loadKey($privateKey);
            // $rsa->setSignatureMode(RSA::SIGNATURE_PKCS1); // 明确使用PKCS#1 v1.5
            // $rsa->setHash("sha256");
            // 不要设置MGF，PKCS#1 v1.5不使用MGF
            // $signature = $rsa->sign($payload);
            
            $base64Signature = base64_encode($signature);
            \Yii::info("phpseclib生成的签名: " . $base64Signature, 'intracity_signature');
            
            return $base64Signature;
        } catch (\Exception $e) {
            \Yii::error("所有签名方法都失败 - OpenSSL: " . $e->getMessage() . " phpseclib: " . $e->getMessage(), 'intracity_signature');
            throw new \Exception('签名生成失败: OpenSSL和phpseclib都失败');
        }
    }

    /**
     * 发送HTTP请求
     * @param string $url 请求URL
     * @param array $data 请求数据
     * @param string $accessToken access_token
     * @return array
     */
    public static function sendRequest($url, $data, $accessToken)
    {
        // ================ 选择哪个 appId  =================
        // 微信开放平台 appId
        $open = \biz\wx\classes\WxOpenClass::getByCondition(['style' => dict::getDict('ptStyle', 'hd')]);
        if (empty($open)) {
            util::fail('没有找到平台信息');
        }
        $component_app_id = $open['appId'];
        $appId = $component_app_id;

        // 当前小程序的 appId
        //$appId = $merchant['miniAppId'] ?? util::fail('app-id 出错');


        // 方式一： 使用WxApi方式处理请求 ============================
        try {
            $wxApi = new \common\components\wxapi\WxApi($appId, $accessToken);
            $result = $wxApi->request($url, $data);
            return $result;
        } catch (\Exception $e) {
            Yii::error($e->getMessage());
            // 如果WxApi方式失败，回退到简单方式
            util::fail('error');
        }


        // 添加access_token到URL
        $urlWithToken = $url . (strpos($url, '?') !== false ? '&' : '?') . 'access_token=' . $accessToken;
        $timestamp = time();
        $body = Json::encode($data);
        if ($body === '[]') {
            $body = '{}';
        }

        // 方式二： 自己处理请求 =========== 失败，不使用（可删除）
        // $signature = self::generateWxApiSignature($url, $appId, $timestamp, $body);
        // 构建请求头，包含微信API签名所需的头部
        // $headers = [
        //     'Content-Type: application/json',
        //     'Accept: application/json',
        //     'Wechatmp-Appid: ' . $appId,
        //     'Wechatmp-TimeStamp: ' . $timestamp,
        //     'Wechatmp-Signature: ' . $signature
        // ];

        // $curl = new curl\Curl();
        // $response = $curl->setOption(CURLOPT_POSTFIELDS, $body)
        //     ->setOption(CURLOPT_HTTPHEADER, $headers)
        //     ->post($urlWithToken);

        // if (is_array($response)) {
        //     return $response;
        // }

        // return Json::decode($response, true);
    }


    // ==================== API URL常量 ====================
    const API_BASE_URL = 'https://api.weixin.qq.com/cgi-bin/express/intracity';

    // 门店管理
    const API_CREATE_STORE = self::API_BASE_URL . '/createstore';
    const API_UPDATE_STORE = self::API_BASE_URL . '/updatestore';
    const API_QUERY_STORE = self::API_BASE_URL . '/querystore';

    // 开通门店权限
    const API_APPLY_STORE = self::API_BASE_URL . '/apply';

    // 订单管理
    const API_ADD_ORDER = self::API_BASE_URL . '/addorder';
    const API_CANCEL_ORDER = self::API_BASE_URL . '/cancelorder';
    const API_GET_ORDER = self::API_BASE_URL . '/queryorder';

    // 预下单
    const API_PRE_ADD_ORDER = self::API_BASE_URL . '/preaddorder';

    // 资金管理
    const API_BALANCE_QUERY = self::API_BASE_URL . '/balancequery';
    const API_STORE_CHARGE = self::API_BASE_URL . '/storecharge';
    const API_STORE_REFUND = self::API_BASE_URL . '/storerefund';
    const API_CHARGE_RECORD = self::API_BASE_URL . '/queryflow';

    // 测试接口
    const API_MOCK_NOTIFY = self::API_BASE_URL . '/mocknotify';


    // ==================== 门店管理接口 ====================
    /**
     * 创建门店
     * @param array $storeData 门店信息
     * @param string $merchant 商户信息
     * @param int $ptStyle
     * @return array
     */
    public static function createStore($storeData, $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }

        $accessToken = self::getAccessToken($merchant, $ptStyle);
        $data = [
            'out_store_id' => $storeData['out_store_id'],
            'store_name' => $storeData['store_name'],
            'order_pattern' => 1,
            "address_info" => $storeData['address_info']
        ];
        
        return self::sendRequest(self::API_CREATE_STORE, $data, $accessToken);
    }

    /**
     * 更新门店
     * @param array $storeData 门店信息
     * @param string $merchant 商户信息
     * @param int $ptStyle
     * @return array
     */
    public static function updateStore($storeData, $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }
        
        $accessToken = self::getAccessToken($merchant, $ptStyle);
        $data = $storeData;
        
        return self::sendRequest(self::API_UPDATE_STORE, $data, $accessToken);
    }

    /**
     * 查询门店
     * @param string $outStoreId 门店ID
     * @param string $merchant 商户信息
     * @param int $ptStyle
     * @return array
     */
    public static function getStore($outStoreId, $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }
        
        $accessToken = self::getAccessToken($merchant, $ptStyle);
        $data = [
            'out_store_id' => $outStoreId,
        ];
        
        return self::sendRequest(self::API_QUERY_STORE, $data, $accessToken);
    }

    /**
     * 开通门店权限
     * @param null $merchant
     * @param int $ptStyle
     * @return array
     */
    public static function applyStore($merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }

        $accessToken = self::getAccessToken($merchant, $ptStyle);
        return self::sendRequest(self::API_APPLY_STORE, [], $accessToken);
    }


    // ==================== 订单管理接口 ====================
    /**
     * 创建订单
     * @param array $orderData 订单信息
     * @param string $merchant 商户信息
     * @param int $ptStyle
     * @return array
     */
    public static function createOrder($orderData, $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }
        
        $accessToken = self::getAccessToken($merchant, $ptStyle);
        $data = $orderData;
        
        return self::sendRequest(self::API_ADD_ORDER, $data, $accessToken);
    }

    /**
     * 预下单（查询运费）
     * @param array $orderData
     * @param null $merchant
     * @param int $ptStyle
     * @return array
     */
    public static function preAddOrder($orderData, $merchant = null, $ptStyle = 0)
    {
        // 创建表单验证模型
        $form = new StoreFeeForm();
        $form->setScenario('query_fee');
        $form->load($orderData, ''); // 直接从 post 数据加载，不使用模型名作为前缀
        // 执行表单验证
        $form->validateForm();

        if ($merchant === null) {
            $merchant = self::getMerchant();
        }
        
        $accessToken = self::getAccessToken($merchant, $ptStyle);
        
        // 请求体
        $data = $orderData;

        return self::sendRequest(self::API_PRE_ADD_ORDER, $data, $accessToken);
    }

    /**
     * 取消订单
     * @param string $wxOrderId 微信订单号
     * @param string $storeOrderId 商户订单号
     * @param string $wxStoreId 门店ID
     * @param string $merchant 商户信息
     * @param int $ptStyle
     * @return array
     */
    public static function cancelOrder($wxOrderId = '', $storeOrderId = '', $wxStoreId = '', $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }
        $accessToken = self::getAccessToken($merchant, $ptStyle);
        
        $data = [];
        if (!empty($wxOrderId)) {
            $data['wx_order_id'] = $wxOrderId;
        }
        if (!empty($storeOrderId)) {
            $data['store_order_id'] = $storeOrderId;
        }
        if (!empty($wxStoreId)) {
            $data['wx_store_id'] = $wxStoreId;
        }
        $cancelReasons = []; // 1:不需要了 2：信息填错 3：无人接单 99：其他
        $data['cancel_reason_id'] = 1;

        return self::sendRequest(self::API_CANCEL_ORDER, $data, $accessToken);
    }

    /**
     * 查询订单
     * @param string $wxOrderId 微信订单号
     * @param string $outOrderId 商户订单号
     * @param string $outStoreId 门店ID
     * @param string $merchant 商户信息
     * @param int $ptStyle
     * @return array
     */
    public static function queryOrder($wxStoreId, $storeOrderId='', $wxOrderId='', $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }
        $accessToken = self::getAccessToken($merchant, $ptStyle);

        if (empty($wxOrderId) && (empty($storeOrderId) || empty($wxStoreId))) {
            util::fail("参数不足：wx_order_id 或 (store_order_id + wx_store_id) 必须提供一组");
        }
        
        $data = [];
        if ($wxStoreId != '') {
            $data['wx_order_id'] = $wxOrderId;
        }
        $data['store_order_id'] = $storeOrderId;
        $data['wx_store_id'] = $wxStoreId;
        
        return self::sendRequest(self::API_GET_ORDER, $data, $accessToken);
    }


    // ==================== 资金管理接口 ====================
    /**
     * 查询门店余额
     * @param string $wxStoreId
     * @param null $merchant
     * @param int $ptStyle
     * @return array
     */
    public static function getBalance($wxStoreId, $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }

        $accessToken = self::getAccessToken($merchant, $ptStyle);
        $data = ['wx_store_id' => $wxStoreId]; //'out_store_id' => $outStoreId,

        return self::sendRequest(self::API_BALANCE_QUERY, $data, $accessToken);
    }

    /**
     * 门店充值
     * @param string $wxStoreId
     * @param string $outChargeId
     * @param int $amount
     * @param null $merchant
     * @param int $ptStyle
     * @return array
     */
    public static function storeCharge($wxStoreId, $chargeId, $amount, $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }

        $accessToken = self::getAccessToken($merchant, $ptStyle);
        $data = [
            'wx_store_id' => $wxStoreId,
            'service_trans_id' => $chargeId,
            'amount' => $amount,
        ];

        return self::sendRequest(self::API_STORE_CHARGE, $data, $accessToken);
    }

    /**
     * 门店退款
     * @param string $wxStoreId
     * @param string $payMode
     * @param string $transId
     * @param null $merchant
     * @param int $ptStyle
     * @return array
     */
    public static function storeFund($wxStoreId, $payMode, $transId, $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }

        $accessToken = self::getAccessToken($merchant, $ptStyle);
        $data = [
            'wx_store_id' => $wxStoreId,
            'pay_mode' => $payMode,
            'service_trans_id' => $transId,
        ];

        return self::sendRequest(self::API_STORE_REFUND, $data, $accessToken);
    }

    /**
     * 查询充值记录
     * @param string $outChargeId
     * @param null $merchant
     * @param int $ptStyle
     * @return array
     */
    public static function getChargeRecord($outChargeId, $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }

        $accessToken = self::getAccessToken($merchant, $ptStyle);
        $data = ['out_charge_id' => $outChargeId];

        return self::sendRequest(self::API_CHARGE_RECORD, $data, $accessToken);
    }

    // ==================== 测试接口 ====================
    /**
     * 模拟回调接口
     * @param string $wxOrderId 微信订单号
     * @param string $outStoreId 门店ID
     * @param string $outOrderId 商户订单号
     * @param int $orderStatus 订单状态
     * @param string $merchant 商户信息
     * @param int $ptStyle
     * @return array
     */
    public static function mockNotify($orderStatus, $wxOrderId = '', $outStoreId = '', $outOrderId = '', $merchant = null, $ptStyle = 0)
    {
        if ($merchant === null) {
            $merchant = self::getMerchant();
        }
        
        $accessToken = self::getAccessToken($merchant, $ptStyle);
        
        $data = [
            'order_status' => $orderStatus,
        ];
        
        if (!empty($wxOrderId)) {
            $data['wx_order_id'] = $wxOrderId;
        }
        // 注意：文档中模拟回调使用的是 wx_store_id 和 store_order_id
        if (!empty($outStoreId) && !empty($outOrderId)) {
            $data['wx_store_id'] = $outStoreId;
            $data['store_order_id'] = $outOrderId;
        }
        
        return self::sendRequest(self::API_MOCK_NOTIFY, $data, $accessToken);
    }

    /**
     * 生成回调签名
     * @param array $params 回调参数
     * @param string $token 安全token
     * @return string
     */
    public static function generateCallbackSignature($params, $token)
    {
        // 1. 筛选出参与签名的字段
        $signParams = [];
        $fieldsToSign = ['appid', 'order_status', 'service_trans_id', 'status_change_time', 'store_order_id', 'timestamp', 'wx_order_id', 'wx_store_id'];
        foreach ($fieldsToSign as $field) {
            if (isset($params[$field])) {
                $signParams[$field] = $params[$field];
            }
        }
        
        // 2. 按字典序排序参数
        ksort($signParams);
        
        // 3. 拼接参数字符串
        $signStr = '';
        foreach ($signParams as $key => $value) {
            $signStr .= $key . '=' . $value . '&';
        }
        $signStr .= 'token=' . $token;
        
        // 4. 计算MD5并转为小写
        return strtolower(md5($signStr));
    }

    // ==================== 回调验证接口 ====================
    /**
     * 验证回调签名
     * @param array $params 回调参数
     * @param string $token 安全token
     * @return bool
     */
    public static function verifyCallback($params, $token)
    {
        if (!isset($params['sign'])) {
            return false;
        }
        
        $receivedSign = $params['sign'];
        unset($params['sign']);
        
        $calculatedSign = self::generateCallbackSignature($params, $token);
        
        return $receivedSign === $calculatedSign;
    }

    /**
     * 处理订单状态回调
     * @param array $callbackData 回调数据
     * @param string $token 安全token
     * @return array
     */
    public static function handleOrderCallback($callbackData, $token)
    {
        // 验证签名
        if (!self::verifyCallback($callbackData, $token)) {
            return [
                'return_code' => 1,
                'return_msg' => '签名验证失败'
            ];
        }
        
        // 处理订单状态变化
        $orderStatus = $callbackData['order_status'];
        $wxOrderId = $callbackData['wx_order_id'];
        $outOrderId = $callbackData['store_order_id'] ?? '';
        $outStoreId = $callbackData['wx_store_id'] ?? '';
        
        // 这里可以添加具体的业务逻辑处理
        // 例如：更新数据库中的订单状态、发送通知等
        
        // 伪代码示例：
        /*
        switch ($orderStatus) {
            case 10000: // 订单创建成功
                // 处理订单创建成功逻辑
                break;
            case 30000: // 配送员接单
                // 处理配送员接单逻辑
                break;
            case 40000: // 配送员到店
                // 处理配送员到店逻辑
                break;
            case 50000: // 配送中
                // 处理配送中逻辑
                break;
            case 70000: // 配送完成
                // 处理配送完成逻辑
                break;
            case 20000: // 商家取消订单
            case 20001: // 配送方取消订单
            case 60000: // 配送员撤单
                // 处理订单取消逻辑
                break;
            case 90000: // 配送异常
                // 处理配送异常逻辑
                break;
        }
        */
        
        return [
            'return_code' => 0,
            'return_msg' => 'OK'
        ];
    }

    // ==================== 常量定义 ====================

    /**
     * 订单状态常量
     */
    const ORDER_STATUS_CREATED = 10000;        // 订单创建成功
    const ORDER_STATUS_CANCELED_BY_MERCHANT = 20000;  // 商家取消订单
    const ORDER_STATUS_CANCELED_BY_DELIVERY = 20001;  // 配送方取消订单
    const ORDER_STATUS_ACCEPTED = 30000;       // 配送员接单
    const ORDER_STATUS_ARRIVED = 40000;        // 配送员到店
    const ORDER_STATUS_DELIVERING = 50000;     // 配送中
    const ORDER_STATUS_WITHDRAWN = 60000;      // 配送员撤单
    const ORDER_STATUS_COMPLETED = 70000;      // 配送完成
    const ORDER_STATUS_EXCEPTION = 90000;      // 配送异常

    const GOODS_TYPE_FLOWER = 14;      // 鲜花

}