// Copyright (2025) Beijing Volcano Engine Technology Ltd.
// SPDX-License-Identifier: Apache-2.0

#include "base/volc_device_manager.h"
#include "util/volc_log.h"
#include "volc_platform.h"
#include "volc_http.h"

#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <cJSON.h>

// For HMAC-SHA256 signature generation
#include <mbedtls/md.h>
#include <mbedtls/base64.h>
#include <mbedtls/aes.h>

// AES解密辅助函数
static char* volc_aes_decode_internal(const char* secret, const char* input, const bool partial_secret) {
    size_t decoded_len = 0;
    int key_bits = 0;
    char* key = NULL;
    unsigned char iv[16] = {0}; // 使用全零IV，与官方项目保持一致
    unsigned char* decoded_payload = NULL;
    unsigned char* output = NULL;
    
    if (input == NULL || strlen(input) == 0) {
        LOGE("Input is NULL or empty");
        return NULL;
    }

    // 计算Base64解码后的长度（与官方项目保持一致）
    int padding = 0;
    int input_len = strlen(input);
    if (input_len >= 2 && input[input_len - 1] == '=' && input[input_len - 2] == '=') {
        padding = 2;
    } else if (input[input_len - 1] == '=') {
        padding = 1;
    }
    decoded_len = (input_len * 3) / 4 - padding;
    
    // 分配内存用于存储解码后的payload
    decoded_payload = (unsigned char*)hal_calloc(decoded_len + 1, 1);
    if (decoded_payload == NULL) {
        LOGE("Failed to allocate memory for decoded payload");
        return NULL;
    }
    
    // 执行Base64解码（与官方项目保持一致的错误处理）
    size_t actual_len = 0;
    int ret = mbedtls_base64_decode(decoded_payload, decoded_len + 1, &actual_len, 
                               (const unsigned char*)input, input_len);
    if (ret != 0) {
        LOGW("Base64 decode failed with error: %d, but continuing", ret);
        // 即使解码失败，也继续执行，与官方项目保持一致
    } else {
        decoded_len = actual_len;
    }
    
    // 准备AES密钥和IV（与官方项目保持一致）
    if (partial_secret) {
        // 使用128位密钥
        key = (char*)hal_calloc(16, 1);
        if (key == NULL) {
            LOGE("Failed to allocate memory for key");
            hal_free(decoded_payload);
            return NULL;
        }
        memcpy(key, secret, 16);
        key_bits = 128;
    } else {
        // 使用192位密钥
        size_t secret_len = strlen(secret);
        if (secret_len < 24) {
            LOGE("Secret length is less than 24, secret: %s", secret);
            hal_free(decoded_payload);
            return NULL;
        }
        key = (char*)hal_calloc(24, 1);
        if (key == NULL) {
            LOGE("Failed to allocate memory for key");
            hal_free(decoded_payload);
            return NULL;
        }
        memcpy(key, secret, 24);
        key_bits = 192;
    }
    
    // 分配内存用于存储解密后的结果（与官方项目保持一致的内存分配）
    output = (unsigned char*)hal_calloc(decoded_len + 16, 1);
    if (output == NULL) {
        LOGE("Failed to allocate memory for output");
        hal_free(key);
        hal_free(decoded_payload);
        return NULL;
    }
    
    // 使用密钥的前16字节作为IV（与官方项目保持一致）
    memcpy(iv, secret, 16);
    
    // 执行AES解密 - 使用CBC模式（与官方项目保持一致）
    mbedtls_aes_context aes_ctx;
    mbedtls_aes_init(&aes_ctx);
    mbedtls_aes_setkey_dec(&aes_ctx, (const unsigned char*)key, key_bits);
    
    // 使用CBC模式解密
    ret = mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_DECRYPT, decoded_len, iv, decoded_payload, output);
    
    mbedtls_aes_free(&aes_ctx);
    
    // 清理临时变量
    hal_free(key);
    hal_free(decoded_payload);
    
    if (ret != 0) {
        LOGE("Failed to decrypt payload: %d", ret);
        hal_free(output);
        return NULL;
    }
    
    // 去除解密后可能存在的空白字符（与官方项目保持一致）
    int len = strlen((const char*)output);
    while (len > 0 && (output[len-1] < 32 || output[len-1] == 0x20)) {
        --len;
    }
    output[len] = '\0';
    
    return (char*)output;
}

// 定义常量
#define VOLC_IOT_HOST "https://iot-cn-shanghai.iot.volces.com"
#define VOLC_DYNAMIC_REGISTER_PATH "/2021-12-14/DynamicRegister"
#define VOLC_API_VERSION "2021-12-14"
#define VOLC_API_VERSION_QUERY_PARAM "Version=2021-12-14"
#define VOLC_API_ACTION_DYNAMIC_REGISTER  "Action=DynamicRegister"
#define VOLC_GET_RTC_CONFIG_PATH "/2021-12-14/GetRTCConfig"
#define VOLC_API_ACTION_GET_RTC_CONFIG  "Action=GetRTCConfig"

// 错误码映射函数（暂时简化实现）
int volc_inter_err_2_ext_err(int code) {
    switch (code) {
        case ERROR_LICENSE_EXHAUSTED:
            return -1; // VOLC_ERR_LICENSE_EXHAUSTED
        case ERROR_LICENSE_EXPIRED:
            return -2; // VOLC_ERR_LICENSE_EXPIRED
        default:
            return -3; // VOLC_ERR_FAILED
    }
}

// 生成签名函数 - 使用HMAC-SHA256算法
char* volc_generate_signature(const char* secret_key, const char* product_key, const char* device_name, int rnd, uint64_t timestamp, int auth_type) {
    if (!secret_key || !product_key || !device_name) {
        LOGE("Invalid parameters for signature generation");
        return NULL;
    }
    
    // 构造待签名字符串（与官方项目格式一致，确保参数顺序正确）
    char sign_str[512] = {0};
    int sign_str_len = snprintf(sign_str, sizeof(sign_str), 
                 "auth_type=%d&device_name=%s&random_num=%d&product_key=%s&timestamp=%" PRIu64,
                 auth_type, device_name, rnd, product_key, timestamp);
    
    if (sign_str_len <= 0 || sign_str_len >= sizeof(sign_str)) {
        LOGE("Failed to construct sign string");
        return NULL;
    }
    
    // 计算HMAC-SHA256哈希值
    unsigned char hmac_result[32] = {0};
    mbedtls_md_context_t ctx;
    mbedtls_md_init(&ctx);
    
    int ret = mbedtls_md_setup(&ctx, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 1);
    if (ret != 0) {
        LOGE("Failed to setup MD context: %d", ret);
        mbedtls_md_free(&ctx);
        return NULL;
    }
    
    ret = mbedtls_md_hmac_starts(&ctx, (const unsigned char*)secret_key, strlen(secret_key));
    if (ret != 0) {
        LOGE("Failed to start HMAC: %d", ret);
        mbedtls_md_free(&ctx);
        return NULL;
    }
    
    ret = mbedtls_md_hmac_update(&ctx, (const unsigned char*)sign_str, sign_str_len);
    if (ret != 0) {
        LOGE("Failed to update HMAC: %d", ret);
        mbedtls_md_free(&ctx);
        return NULL;
    }
    
    ret = mbedtls_md_hmac_finish(&ctx, hmac_result);
    if (ret != 0) {
        LOGE("Failed to finish HMAC: %d", ret);
        mbedtls_md_free(&ctx);
        return NULL;
    }
    
    mbedtls_md_free(&ctx);
    
    // 将HMAC结果进行Base64编码
    // 使用更可靠的Base64长度计算方式
    size_t src_len = sizeof(hmac_result);
    size_t base64_len = ((src_len + 2) / 3) * 4 + 1; // +1 for null terminator
    
    char* signature = (char*)hal_malloc(base64_len);
    if (!signature) {
        LOGE("Failed to allocate signature buffer");
        return NULL;
    }
    
    size_t olen = 0;
    int ret_b64 = mbedtls_base64_encode((unsigned char*)signature, base64_len, &olen, hmac_result, src_len);
    if (ret_b64 != 0) {
        LOGE("Failed to encode Base64: %d", ret_b64);
        hal_free(signature);
        return NULL;
    }
    
    signature[olen] = '\0';
    
    return signature;
}

// 生成WebSocket签名函数（与官方项目实现一致）
char* volc_generate_signature_ws(const char* secret_key, const char* product_key, const char* device_name, const char* instance_id, int rnd, uint64_t timestamp, int auth_type) {
    if (!secret_key || !product_key || !device_name || !instance_id) {
        LOGE("Invalid parameters for WebSocket signature generation");
        return NULL;
    }
    
    // 构造待签名字符串（与官方项目格式一致）
    char sign_str[512] = {0};
    int sign_str_len = snprintf(sign_str, sizeof(sign_str), 
                 "auth_type=%d&device_name=%s&random_num=%d&product_key=%s&timestamp=%" PRIu64 "&instance_id=%s",
                 auth_type, device_name, rnd, product_key, timestamp, instance_id);
    
    if (sign_str_len <= 0 || sign_str_len >= sizeof(sign_str)) {
        LOGE("Failed to construct WebSocket sign string");
        return NULL;
    }
    
    // 计算HMAC-SHA256哈希值
    unsigned char hmac_result[32] = {0};
    mbedtls_md_context_t ctx;
    mbedtls_md_init(&ctx);
    
    int ret = mbedtls_md_setup(&ctx, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 1);
    if (ret != 0) {
        LOGE("Failed to setup MD context for WebSocket signature: %d", ret);
        mbedtls_md_free(&ctx);
        return NULL;
    }
    
    ret = mbedtls_md_hmac_starts(&ctx, (const unsigned char*)secret_key, strlen(secret_key));
    if (ret != 0) {
        LOGE("Failed to start HMAC for WebSocket signature: %d", ret);
        mbedtls_md_free(&ctx);
        return NULL;
    }
    
    ret = mbedtls_md_hmac_update(&ctx, (const unsigned char*)sign_str, sign_str_len);
    if (ret != 0) {
        LOGE("Failed to update HMAC for WebSocket signature: %d", ret);
        mbedtls_md_free(&ctx);
        return NULL;
    }
    
    ret = mbedtls_md_hmac_finish(&ctx, hmac_result);
    if (ret != 0) {
        LOGE("Failed to finish HMAC for WebSocket signature: %d", ret);
        mbedtls_md_free(&ctx);
        return NULL;
    }
    
    mbedtls_md_free(&ctx);
    
    // 将HMAC结果进行Base64编码
    size_t src_len = sizeof(hmac_result);
    size_t base64_len = ((src_len + 2) / 3) * 4 + 1; // +1 for null terminator
    
    char* signature = (char*)hal_malloc(base64_len);
    if (!signature) {
        LOGE("Failed to allocate WebSocket signature buffer");
        return NULL;
    }
    
    size_t olen = 0;
    int ret_b64 = mbedtls_base64_encode((unsigned char*)signature, base64_len, &olen, hmac_result, src_len);
    if (ret_b64 != 0) {
        LOGE("Failed to encode WebSocket signature Base64: %d", ret_b64);
        hal_free(signature);
        return NULL;
    }
    
    signature[olen] = '\0';
    
    return signature;
}

// 实现设备注册函数
int volc_device_register(volc_iot_info_t* info, char** output) {
    if (!info || !output || !info->product_key || !info->device_name || !info->product_secret) {
        LOGE("Invalid input parameters: info=%p, output=%p, product_key=%p, device_name=%p, product_secret=%p", 
             info, output, info->product_key, info->device_name, info->product_secret);
        return -1;
    }

    int ret = 0;
    uint64_t current_time = hal_get_time_ms();
    int32_t random_num = (int32_t)current_time;
    char url[256] = {0};
    char* signature = NULL;
    char* response = NULL;
    cJSON* root = NULL;
    cJSON* rtc_app_id = NULL;
    char* device_secret_str = NULL; // 使用正确的变量名，与解密后的变量保持一致
    char* json_str = NULL; // 初始化json_str变量，避免未初始化警告
    cJSON* request_root = NULL;

    // 生成签名（使用正确的auth_type值1，与官方项目保持一致）
    signature = volc_generate_signature(info->product_secret, info->product_key, info->device_name, random_num, current_time, 1);
    if (!signature) {
        LOGE("Failed to generate signature");
        return -1;
    }

    // 构造URL
    snprintf(url, sizeof(url), "%s%s?%s&%s", VOLC_IOT_HOST, VOLC_DYNAMIC_REGISTER_PATH, 
             VOLC_API_ACTION_DYNAMIC_REGISTER, VOLC_API_VERSION_QUERY_PARAM);
    
    LOGI("Device register URL: %s", url);
    
    // 使用cJSON构造请求体（与官方实现保持一致，避免字符串长度限制问题）
    request_root = cJSON_CreateObject();
    if (!request_root) {
        LOGE("Failed to create JSON root object for request");
        ret = -1;
        goto err_out_label;
    }
    
    // 总是添加InstanceID字段
    cJSON_AddStringToObject(request_root, "InstanceID", info->instance_id);// 必须添加 实例ID字段
    cJSON_AddStringToObject(request_root, "product_key", info->product_key);// 必须添加 产品密钥字段
    cJSON_AddStringToObject(request_root, "device_name", info->device_name);// 必须添加 设备名称字段
    // cJSON_AddStringToObject(request_root, "bot_id", info->bot_id);
    cJSON_AddNumberToObject(request_root, "random_num", random_num);// 必须添加 随机数字段
    cJSON_AddNumberToObject(request_root, "timestamp", (double)current_time); // 与官方实现保持一致，使用double类型
    cJSON_AddNumberToObject(request_root, "auth_type", 1);// 必须添加 认证类型字段
    cJSON_AddStringToObject(request_root, "signature", signature);// 必须添加 签名字段
    json_str = cJSON_PrintUnformatted(request_root);// 必须添加 JSON字符串字段
    if (!json_str) {
        LOGE("Failed to print JSON request body");
        cJSON_Delete(request_root);
        ret = -1;
        goto err_out_label;
    }
    
    // 调用HTTP POST请求
    response = volc_http_post(url, json_str, strlen(json_str));
    if (!response) {
        LOGE("Failed to send HTTP POST request for device registration");
        cJSON_Delete(request_root);
        hal_free(json_str);
        ret = -1;
        goto err_out_label;
    }
    
    LOGI("Device register response received: %s", response);
    
    // 解析JSON响应
    root = cJSON_Parse(response);
    if (!root) {
        LOGE("Failed to parse device registration response");
        ret = -1;
        goto err_out_label;
    }
    
    // 检查是否有错误信息（参考官方实现的检查方式）
    cJSON* response_metadata = cJSON_GetObjectItem(root, "ResponseMetadata");
    if (response_metadata && response_metadata->type == cJSON_Object) {
        cJSON* error = cJSON_GetObjectItem(response_metadata, "Error");
        if (error && error->type == cJSON_Object) {
            cJSON* code_n = cJSON_GetObjectItem(error, "CodeN");
            if (code_n && code_n->type == cJSON_Number) {
                // 检查是否是RTC许可证绑定失败错误
                int error_code = (int)code_n->valuedouble;
                cJSON* message = cJSON_GetObjectItem(error, "Message");
                
                LOGE("Device registration failed, error code: %d", error_code);
                if (message && message->type == cJSON_String && message->valuestring) {
                    LOGE("Error message: %s", message->valuestring);
                }
                
                // 如果是RTC许可证绑定失败，记录更详细的信息
                if (error_code == 12000130) {
                    LOGE("Device bind RTC license failed, please check device configuration");
                }
                
                ret = -1;
                goto err_out_label;
            }
        }
    }
    
    // 检查响应格式（兼容官方项目的ResponseMetadata/Result格式）
    cJSON* result = cJSON_GetObjectItem(root, "Result");
    if (!result || result->type != cJSON_Object) {
        LOGE("Device registration response missing or invalid 'Result' field");
        ret = -1;
        goto err_out_label;
    }
    
    // 提取rtc_app_id（安全检查）
    rtc_app_id = cJSON_GetObjectItem(result, "RTCAppID");
    if (!rtc_app_id || rtc_app_id->type != cJSON_String || !rtc_app_id->valuestring || strlen(rtc_app_id->valuestring) == 0) {
        LOGE("Device registration response missing or invalid 'RTCAppID' field");
        ret = -1;
        goto err_out_label;
    }
    
    // 从payload中解析device_secret（安全检查）
    cJSON* payload = cJSON_GetObjectItem(result, "payload");
    if (!payload || payload->type != cJSON_String || !payload->valuestring || strlen(payload->valuestring) == 0) {
        LOGE("Device registration response missing or invalid 'payload' field");
        ret = -1;
        goto err_out_label;
    }
    
    // 使用AES解密payload获取device_secret
    device_secret_str = volc_aes_decode_internal(info->product_secret, payload->valuestring, true);
    if (!device_secret_str) {
        LOGE("Failed to decode device secret from payload");
        ret = -1;
        goto err_out_label;
    }
    
    // 验证解密结果是否有效
    if (strlen(device_secret_str) == 0) {
        LOGE("Decrypted device secret is empty");
        hal_free(device_secret_str);
        device_secret_str = NULL;
        ret = -1;
        goto err_out_label;
    }
    
    LOGI("Decoded device secret: %s", device_secret_str);
    
    // 存储device_secret到iot_info结构体中
    info->device_secret = strdup(device_secret_str);
    if (!info->device_secret) {
        LOGE("Failed to allocate memory for device secret");
        hal_free(device_secret_str);
        ret = -1;
        goto err_out_label;
    }
    
    // 返回device_secret
    if (*output) {
        hal_free(*output);
        *output = NULL;
    }
    
    // 使用解密后的device_secret_str赋值给output
    *output = strdup(device_secret_str);
    if (!*output) {
        LOGE("Failed to allocate memory for device secret");
        hal_free(device_secret_str);
        ret = -1;
        goto err_out_label;
    }
    
    // 释放临时内存
    hal_free(device_secret_str);
    device_secret_str = NULL;
    
    // 保存rtc_app_id
    if (info->rtc_app_id) {
        hal_free(info->rtc_app_id);
        info->rtc_app_id = NULL;
    }
    
    info->rtc_app_id = strdup(rtc_app_id->valuestring);
    if (!info->rtc_app_id) {
        LOGE("Failed to allocate memory for rtc_app_id");
        ret = -1;
        goto err_out_label;
    }
    
    LOGI("Device registration successful: rtc_app_id=%s", info->rtc_app_id);

err_out_label:
    // 清理资源
    if (root) {
        cJSON_Delete(root);
    }
    
    if (request_root) {
        cJSON_Delete(request_root);
    }
    
    if (json_str) {
        hal_free(json_str);
    }
    
    if (response) {
        hal_free(response);
    }
    
    if (signature) {
        hal_free(signature);
    }
    
    if (device_secret_str) {
        hal_free(device_secret_str);
    }
    
    return ret;
}

// 实现RTC配置获取函数 ，extra_params 用于传递额外的AgentConfig配置参数
int volc_get_rtc_config(volc_iot_info_t* info, int audio_codec, const char* bot_id, const char* task_id, const char* extra_params, volc_room_info_t* room_info) {
    if (!info || !room_info || !bot_id || !task_id || !info->product_key || !info->device_name || !info->device_secret) {
        LOGE("Invalid input parameters: info=%p, room_info=%p, bot_id=%p, task_id=%p, product_key=%p, device_name=%p, device_secret=%p", 
             info, room_info, bot_id, task_id, info->product_key, info->device_name, info->device_secret);
        return -1;
    }

    int ret = 0;
    uint64_t current_time = hal_get_time_ms();
    int32_t random_num = (int32_t)current_time;
    char url[256] = {0};
    char* signature = NULL;
    char* response = NULL;
    cJSON* root = NULL;
    cJSON* channel_name = NULL;
    cJSON* uid = NULL;
    cJSON* token = NULL;
    cJSON* request_root = NULL;
    char* json_str = NULL;
    
    // 生成签名（使用auth_type=0，与官方代码一致）
    signature = volc_generate_signature(info->device_secret, info->product_key, info->device_name, random_num, current_time, 0);
    if (!signature) {
        LOGE("Failed to generate signature");
        return -1;
    }

    // 构造URL
    snprintf(url, sizeof(url), "%s%s?%s&%s", VOLC_IOT_HOST, VOLC_GET_RTC_CONFIG_PATH, 
             VOLC_API_ACTION_GET_RTC_CONFIG, VOLC_API_VERSION_QUERY_PARAM);
    
    // 使用cJSON构造JSON请求体（与官方代码保持一致）
    request_root = cJSON_CreateObject();
    cJSON_AddStringToObject(request_root, "InstanceID", info->instance_id);
    cJSON_AddStringToObject(request_root, "product_key", info->product_key);
    cJSON_AddStringToObject(request_root, "device_name", info->device_name);
    cJSON_AddNumberToObject(request_root, "random_num", random_num);
    cJSON_AddNumberToObject(request_root, "timestamp", (double)current_time);
    cJSON_AddStringToObject(request_root, "signature", signature);
    cJSON_AddStringToObject(request_root, "bot_id", bot_id);
    cJSON_AddNumberToObject(request_root, "audio_codec", audio_codec);
    cJSON_AddStringToObject(request_root, "task_id", task_id);

    // 如果有额外参数（如AgentConfig），解析并合并到请求体中
    if (extra_params && strlen(extra_params) > 0) {
        cJSON* params_json = cJSON_Parse(extra_params);
        if (params_json) {
            // 如果是对象，遍历所有字段并添加到request_root
            if (cJSON_IsObject(params_json)) {
                cJSON* child = params_json->child;
                while (child) {
                    cJSON_AddItemToObject(request_root, child->string, cJSON_Duplicate(child, 1));
                    child = child->next;
                }
            } else {
                // 如果不是对象（不太可能），尝试直接添加为AgentConfig（备选方案）
                 LOGW("extra_params is not a JSON object, ignoring");
            }
            cJSON_Delete(params_json);
        } else {
            LOGW("Failed to parse extra_params JSON");
        }
    }

    json_str = cJSON_PrintUnformatted(request_root);
    
    LOGI("Get RTC config URL: %s", url);
    LOGI("RTC config request body: %s", json_str);
    
    // 调用HTTP POST请求
    response = volc_http_post(url, json_str, strlen(json_str));
    if (!response) {
        LOGE("Failed to send HTTP POST request for RTC config");
        ret = -1;
        goto err_out_label;
    }
    
    LOGI("Get RTC config response received");
    LOGI("RTC config response content: %s", response);
    
    // 解析JSON响应
    root = cJSON_Parse(response);
    if (!root) {
        LOGE("Failed to parse RTC config response: %s", response);
        ret = -1;
        goto err_out_label;
    }
    
    // 检查响应格式（兼容官方项目的ResponseMetadata/Result格式）
    cJSON* result = cJSON_GetObjectItem(root, "Result");
    if (!result || result->type != cJSON_Object) {
        LOGE("RTC config response missing or invalid 'Result' field");
        ret = -1;
        goto err_out_label;
    }
    
    // 提取RTC配置信息（与官方代码保持一致的字段名）
    channel_name = cJSON_GetObjectItem(result, "RoomID");
    if (!channel_name || channel_name->type != cJSON_String || !channel_name->valuestring) {
        LOGE("RTC config response missing or invalid 'RoomID' field");
        ret = -1;
        goto err_out_label;
    }
    
    uid = cJSON_GetObjectItem(result, "UserID");
    if (!uid || uid->type != cJSON_String || !uid->valuestring) {
        LOGE("RTC config response missing or invalid 'UserID' field");
        ret = -1;
        goto err_out_label;
    }
    
    token = cJSON_GetObjectItem(result, "Token");
    if (!token || token->type != cJSON_String || !token->valuestring) {
        LOGE("RTC config response missing or invalid 'Token' field");
        ret = -1;
        goto err_out_label;
    }
    
    // 提取TaskID（与官方代码保持一致）
    cJSON* task_id_json = cJSON_GetObjectItem(result, "TaskID");
    if (!task_id_json || task_id_json->type != cJSON_String || !task_id_json->valuestring) {
        LOGE("RTC config response missing or invalid 'TaskID' field");
        ret = -1;
        goto err_out_label;
    }
    
    // 保存RTC配置（先释放旧的内存）
    char* new_channel_name = strdup(channel_name->valuestring);
    char* new_uid = strdup(uid->valuestring);
    char* new_token = strdup(token->valuestring);
    char* new_task_id = strdup(task_id_json->valuestring);
    
    // 检查内存分配是否成功
    if (!new_channel_name || !new_uid || !new_token || !new_task_id) {
        LOGE("Failed to allocate memory for RTC config");
        ret = -1;
        
        // 清理已分配的内存
        if (new_channel_name) hal_free(new_channel_name);
        if (new_uid) hal_free(new_uid);
        if (new_token) hal_free(new_token);
        if (new_task_id) hal_free(new_task_id);
        
        goto err_out_label;
    }
    
    // 释放旧的内存并设置新的指针
    if (room_info->rtc_opt.p_channel_name) {
        hal_free(room_info->rtc_opt.p_channel_name);
    }
    if (room_info->rtc_opt.p_uid) {
        hal_free(room_info->rtc_opt.p_uid);
    }
    if (room_info->rtc_opt.p_token) {
        hal_free(room_info->rtc_opt.p_token);
    }
    if (room_info->task_id) {
        hal_free(room_info->task_id);
    }
    
    // 保存RTC配置
    room_info->rtc_opt.p_channel_name = new_channel_name;
    room_info->rtc_opt.p_uid = new_uid;
    room_info->rtc_opt.p_token = new_token;
    room_info->task_id = new_task_id;
    
    // 检查是否所有分配都成功
    if (!room_info->rtc_opt.p_channel_name || !room_info->rtc_opt.p_uid || 
        !room_info->rtc_opt.p_token || !room_info->task_id) {
        LOGE("Failed to allocate memory for RTC config");
        ret = -1;
        goto err_out_label;
    }
    
    LOGI("Retrieved RTC config: channel_name=%s, uid=%s, task_id=%s", 
         room_info->rtc_opt.p_channel_name, room_info->rtc_opt.p_uid, room_info->task_id);

err_out_label:
    // 清理资源
    if (root) {
        cJSON_Delete(root);
    }
    
    if (request_root) {
        cJSON_Delete(request_root);
    }
    
    if (json_str) {
        hal_free(json_str);
    }
    
    if (response) {
        hal_free(response);
    }
    
    if (signature) {
        hal_free(signature);
    }
    
    return ret;
}