"""
Sub2API 账号上传功能
将账号以 sub2api-data 格式批量导入到 Sub2API 平台
"""

import json
import logging
from datetime import datetime, timezone
from typing import List, Tuple, Optional

from curl_cffi import requests as cffi_requests

from ...database.session import get_db
from ...database.models import Account

logger = logging.getLogger(__name__)


def upload_to_sub2api(
    accounts: List[Account],
    api_url: str,
    api_key: str,
    concurrency: int = 3,
    priority: int = 50,
) -> Tuple[bool, str]:
    """
    上传账号列表到 Sub2API 平台（不走代理）

    Args:
        accounts: 账号模型实例列表
        api_url: Sub2API 地址，如 http://host
        api_key: Admin API Key（x-api-key header）
        concurrency: 账号并发数，默认 3
        priority: 账号优先级，默认 50

    Returns:
        (成功标志, 消息)
    """
    if not accounts:
        return False, "无可上传的账号"

    if not api_url:
        return False, "Sub2API URL 未配置"

    if not api_key:
        return False, "Sub2API API Key 未配置"

    exported_at = datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")

    account_items = []
    for acc in accounts:
        if not acc.access_token:
            continue
        expires_at = int(acc.expires_at.timestamp()) if acc.expires_at else 0
        account_items.append({
            "name": acc.email,
            "platform": "openai",
            "type": "oauth",
            "credentials": {
                "access_token": acc.access_token,
                "chatgpt_account_id": acc.account_id or "",
                "chatgpt_user_id": "",
                "client_id": acc.client_id or "",
                "expires_at": expires_at,
                "expires_in": 863999,
                "model_mapping": {
                    "gpt-5.1": "gpt-5.1",
                    "gpt-5.1-codex": "gpt-5.1-codex",
                    "gpt-5.1-codex-max": "gpt-5.1-codex-max",
                    "gpt-5.1-codex-mini": "gpt-5.1-codex-mini",
                    "gpt-5.2": "gpt-5.2",
                    "gpt-5.2-codex": "gpt-5.2-codex",
                    "gpt-5.3": "gpt-5.3",
                    "gpt-5.3-codex": "gpt-5.3-codex",
                    "gpt-5.4": "gpt-5.4"
                },
                "organization_id": acc.workspace_id or "",
                "refresh_token": acc.refresh_token or "",
            },
            "extra": {},
            "concurrency": concurrency,
            "priority": priority,
            "rate_multiplier": 1,
            "auto_pause_on_expired": True,
        })

    if not account_items:
        return False, "所有账号均缺少 access_token，无法上传"

    payload = {
        "data": {
            "type": "sub2api-data",
            "version": 1,
            "exported_at": exported_at,
            "proxies": [],
            "accounts": account_items,
        },
        "skip_default_group_bind": True,
    }

    url = api_url.rstrip("/") + "/api/v1/admin/accounts/data"
    headers = {
        "Content-Type": "application/json",
        "x-api-key": api_key,
        "Idempotency-Key": f"import-{exported_at}",
    }

    try:
        response = cffi_requests.post(
            url,
            json=payload,
            headers=headers,
            proxies=None,
            timeout=30,
            impersonate="chrome110",
        )

        if response.status_code in (200, 201):
            return True, f"成功上传 {len(account_items)} 个账号"

        error_msg = f"上传失败: HTTP {response.status_code}"
        try:
            detail = response.json()
            if isinstance(detail, dict):
                error_msg = detail.get("message", error_msg)
        except Exception:
            error_msg = f"{error_msg} - {response.text[:200]}"
        return False, error_msg

    except Exception as e:
        logger.error(f"Sub2API 上传异常: {e}")
        return False, f"上传异常: {str(e)}"


def batch_upload_to_sub2api(
    account_ids: List[int],
    api_url: str,
    api_key: str,
    concurrency: int = 3,
    priority: int = 50,
) -> dict:
    """
    批量上传指定 ID 的账号到 Sub2API 平台

    Returns:
        包含成功/失败/跳过统计和详情的字典
    """
    results = {
        "success_count": 0,
        "failed_count": 0,
        "skipped_count": 0,
        "details": []
    }

    with get_db() as db:
        accounts = []
        for account_id in account_ids:
            acc = db.query(Account).filter(Account.id == account_id).first()
            if not acc:
                results["failed_count"] += 1
                results["details"].append({"id": account_id, "email": None, "success": False, "error": "账号不存在"})
                continue
            if not acc.access_token:
                results["skipped_count"] += 1
                results["details"].append({"id": account_id, "email": acc.email, "success": False, "error": "缺少 access_token"})
                continue
            accounts.append(acc)

        if not accounts:
            return results

        success, message = upload_to_sub2api(accounts, api_url, api_key, concurrency, priority)

        if success:
            for acc in accounts:
                results["success_count"] += 1
                results["details"].append({"id": acc.id, "email": acc.email, "success": True, "message": message})
        else:
            for acc in accounts:
                results["failed_count"] += 1
                results["details"].append({"id": acc.id, "email": acc.email, "success": False, "error": message})

    return results


def test_sub2api_connection(api_url: str, api_key: str) -> Tuple[bool, str]:
    """
    测试 Sub2API 连接（GET /api/v1/admin/accounts/data 探活）

    Returns:
        (成功标志, 消息)
    """
    if not api_url:
        return False, "API URL 不能为空"
    if not api_key:
        return False, "API Key 不能为空"

    url = api_url.rstrip("/") + "/api/v1/admin/accounts/data"
    headers = {"x-api-key": api_key}

    try:
        response = cffi_requests.get(
            url,
            headers=headers,
            proxies=None,
            timeout=10,
            impersonate="chrome110",
        )

        if response.status_code in (200, 201, 204, 405):
            return True, "Sub2API 连接测试成功"
        if response.status_code == 401:
            return False, "连接成功，但 API Key 无效"
        if response.status_code == 403:
            return False, "连接成功，但权限不足"

        return False, f"服务器返回异常状态码: {response.status_code}"

    except cffi_requests.exceptions.ConnectionError as e:
        return False, f"无法连接到服务器: {str(e)}"
    except cffi_requests.exceptions.Timeout:
        return False, "连接超时，请检查网络配置"
    except Exception as e:
        return False, f"连接测试失败: {str(e)}"