# toolkit/vs_cloud_api.py
import requests
import json
import time
import urllib.parse
from typing import Dict, Any, Optional
from vs_log_macros import VSC_ERROR, VSC_INFO, VSC_DEBUG # type: ignore

class VSCloudApi:
    """
    @brief VSCloudApi 的 Python 实现 (1:1 对应 C++ 版本)
    用于对接 http://45.137.220.138:8888 的云端服务
    """
    _instance = None

    def __new__(cls, *args, **kwargs):
        if cls._instance is None:
            cls._instance = super(VSCloudApi, cls).__new__(cls)
            # 初始化默认配置，对应 C++ 构造函数参数
            cls._instance.base_url = "http://45.137.220.138:8000"
            cls._instance.api_token = "7x9EjFpmv7GjZc6AfVeqxuUBANpqkpkHAtxJM7CAW5oZhs0nEyCJBy39N4XXs5hgfYWXw3jFrcgXqQ42HAx9Qvwtk9vC2GvKBbWz"
            cls._instance.session = requests.Session()
        return cls._instance

    @staticmethod
    def Instance():
        return VSCloudApi()

    def _get_headers(self, content_type: str = "application/json") -> Dict[str, str]:
        return {
            "Authorization": self.api_token,
            "Content-Type": content_type,
            "Accept": "application/json, text/plain, */*"
        }

    def _handle_request(self, method: str, endpoint: str, **kwargs) -> Optional[Any]:
        url = f"{self.base_url}{endpoint}"
        try:
            resp = self.session.request(method, url, timeout=30, **kwargs)
            if resp.status_code == 200:
                try:
                    return resp.json()
                except json.JSONDecodeError:
                    # 部分接口可能返回纯文本或空，视情况而定
                    return resp.text
            else:
                VSC_ERROR("vs_cloud", f"Request failed: {method} {url} [{resp.status_code}] {resp.text}")
        except Exception as e:
            VSC_ERROR("vs_cloud", f"Request exception: {method} {url} - {str(e)}")
        return None

    def query_user_pending(self, tech_provider: str, pending_users_out: Dict[str, Any]) -> bool:
        """查询待处理用户"""
        params = {"tech_provider": tech_provider}
        headers = self._get_headers()
        # C++: headers = curl_slist_append(headers, auth.c_str());
        
        result = self._handle_request("GET", "/api/autobooking/pending", params=params, headers=headers)
        if result is not None:
            pending_users_out.update(result)
            return True
        return False

    def query_user_info(self, uid: str, userinfo_out: Dict[str, Any]) -> bool:
        """查询 VFS 用户信息"""
        headers = self._get_headers()
        result = self._handle_request("GET", f"/api/autobooking/{uid}", headers=headers)
        if result is not None:
            userinfo_out.update(result)
            return True
        return False

    def update_user_info(self, uid: str, uinfo: Dict[str, Any], updated_userinfo_out: Dict[str, Any]) -> bool:
        """更新 VFS 用户信息"""
        headers = self._get_headers()
        # C++: if (!uinfo.is_null()) put_data = uinfo.dump();
        
        result = self._handle_request("PUT", f"/api/autobooking/{uid}", headers=headers, json=uinfo)
        if result is not None:
            updated_userinfo_out.update(result)
            return True
        return False

    def submit_anti_turnstile_task(self, proxy: str, website_url: str, task_out: Dict[str, Any]) -> bool:
        """
        提交反 Turnstile 任务
        注意 C++ 逻辑：args 字段是 JSON dump 后的字符串
        """
        headers = self._get_headers()
        
        args = {
            "proxy": proxy,
            "websiteUrl": website_url
        }
        
        payload = {
            "command": "AntiCloudflareTurnstileTask",
            "args": json.dumps(args), # C++: data["args"] = args.dump();
            "status": 0
        }

        result = self._handle_request("POST", "/api/tasks", headers=headers, json=payload)
        if result is not None:
            task_out.update(result)
            return True
        return False

    def get_anti_turnstile_result(self, task_id: str, result_out: Dict[str, Any]) -> bool:
        """获取反 Turnstile 结果"""
        headers = self._get_headers()
        result = self._handle_request("GET", f"/api/tasks/{task_id}", headers=headers)
        if result is not None:
            result_out.update(result)
            return True
        return False
    
    def submit_anticloudflare_task(self, proxy: str, website_url: str) -> Optional[Dict]:
        """
        提交 AntiCloudflareTask (用于 TLSContact 5s 盾)
        """
        # 注意：这里路径根据之前的 C++ 移植经验是 /api/tasks，
        # 如果你确定是 /common/api/tasks，请修改这里。为了兼容现有 base_url，我使用 /api/tasks
        # url = f"https://{self._base_url}/common/api/tasks" 
        url = f"{self.base_url}/api/tasks" 
        
        args = {
            'proxy': proxy,
            'websiteUrl': website_url
        }
        data = {
            "command": "AntiCloudflareTask", # 关键：Command 名字不同
            "args": json.dumps(args),
            "status": 0
        }
        headers = {
            'Authorization': self.api_token,
            'Content-Type': 'application/json'
        }
        try:
            response = self.session.post(url, headers=headers, json=data, timeout=30)
            if response.status_code != 200:
                VSC_ERROR("vs_cloud", f"submit_anticloudflare_task failed: {response.status_code}")
                return None
            return response.json()
        except Exception as e:
            VSC_ERROR("vs_cloud", f"submit_anticloudflare_task exception: {e}")
        return None
    
    def get_anticloudflare_result(self, task_id, retry_interval=5, max_retries=20) -> Optional[Dict]:
        """
        获取 AntiCloudflareTask 结果 (带轮询)
        """
        url = f"{self.base_url}/api/tasks/{task_id}"
        headers = {
            'Authorization': self.api_token
        }
        try:
            for attempt in range(max_retries):
                response = self.session.get(url, headers=headers, timeout=30)
                if response.status_code == 200:
                    data = response.json()
                    # status 2 表示成功
                    if data.get("status") == 2:
                        return data
                    elif data.get("status") == 3:
                        VSC_ERROR("vs_cloud", f"AntiCloudflareTask failed: {data.get('result')}")
                        return None
                    else:
                        # VSC_DEBUG("vs_cloud", f"Task {task_id} not ready, retrying...")
                        time.sleep(retry_interval)
                else:
                    VSC_ERROR("vs_cloud", f"Error getting task result: {response.text}")
                    break
            VSC_ERROR("vs_cloud", "Max retries reached, AntiCloudflareTask not completed.")
        except Exception as e:
            VSC_ERROR("vs_cloud", f"get_anticloudflare_result exception: {e}")
        return None

    def create_http_session(
        self, 
        session_id: str, 
        cookies: str, 
        local_storage: str, 
        user_agent: str, 
        proxy: str, 
        page: str, 
        created_session_out: Dict[str, Any]
    ) -> bool:
        """创建 http session"""
        headers = self._get_headers()
        
        payload = {
            "local_storage": local_storage,
            "cookies": cookies,
            "user_agent": user_agent,
            "proxy": proxy,
            "page": page,
            "session_id": session_id
        }
        
        result = self._handle_request("POST", "/api/http-session", headers=headers, json=payload)
        if result is not None:
            # result 可能是 None 如果解析失败，或者是一个 dict
            if isinstance(result, dict):
                created_session_out.update(result)
            return True
        return False

    def fetch_mail_content(
        self,
        email: str,
        sender: str,
        recipient: str,
        subject_keywords: str,
        body_keywords: str,
        sent_date: str,
        expiry: int,
        content_out: list # Python string is immutable, use list to simulate pointer behavior like C++
    ) -> bool:
        """
        获取邮件内容
        C++ logic: query params in URL + POST method + empty body
        """
        params = {
            "email": email,
            "sender": sender,
            "recipient": recipient,
            "subjectKeywords": subject_keywords,
            "bodyKeywords": body_keywords,
            "sentDate": sent_date,
            "expiry": str(expiry)
        }
        
        headers = self._get_headers()
        # C++: curl_easy_setopt(curl, CURLOPT_POST, 1L); curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "");
        
        # requests.post(url, params=params) 会把 params 拼接到 URL 后面
        url = f"{self.base_url}/api/email-authorizations/fetch"
        try:
            resp = self.session.post(url, headers=headers, params=params, data="", timeout=30)
            if resp.status_code == 200:
                # C++: content.assign(response_string.data(), response_string.length());
                # 这里假设 content_out 是一个 list，我们将结果 append 进去或修改第一个元素
                if isinstance(content_out, list):
                    content_out.clear()
                    content_out.append(resp.text)
                return True
            else:
                VSC_ERROR("vs_cloud", f"fetch_mail_content failed: {resp.status_code} {resp.text}")
        except Exception as e:
            VSC_ERROR("vs_cloud", f"fetch_mail_content exception: {e}")
            
        return False

    def fetch_mail_content_from_top(
        self,
        email: str,
        sender: str,
        recipient: str,
        subject_keywords: str,
        body_keywords: str,
        top: int,
        content_out: list
    ) -> bool:
        """从顶部获取邮件内容"""
        params = {
            "email": email,
            "sender": sender,
            "recipient": recipient,
            "subjectKeywords": subject_keywords,
            "bodyKeywords": body_keywords,
            "top": str(top)
        }
        
        headers = self._get_headers()
        url = f"{self.base_url}/api/email-authorizations/fetch-top"
        
        try:
            resp = self.session.post(url, headers=headers, params=params, data="", timeout=30)
            if resp.status_code == 200:
                if isinstance(content_out, list):
                    content_out.clear()
                    content_out.append(resp.text)
                return True
            else:
                VSC_ERROR("vs_cloud", f"fetch_mail_content_from_top failed: {resp.status_code} {resp.text}")
        except Exception as e:
            VSC_ERROR("vs_cloud", f"fetch_mail_content_from_top exception: {e}")
            
        return False