#!/usr/bin/env python3
"""
Telegram Bot 启动入口

使用方法:
    python bot_main.py

配置 (.env):
    TELEGRAM_BOT_TOKEN=your_bot_token_here
    TELEGRAM_ALLOWED_USERS=123456789,987654321
    TELEGRAM_ADMIN_USERS=123456789
"""

import asyncio
import sys
from pathlib import Path

# 确保项目根目录在 Python 路径中
sys.path.insert(0, str(Path(__file__).parent))

from config import load_config
from utils.logger import logger, setup_logger


def main():
    """主函数"""
    print("=" * 60)
    print("  OpenAI 账号自动注册系统 - Telegram Bot")
    print("=" * 60)
    print()

    # 加载配置
    config = load_config()
    setup_logger(config.log_level)

    # 检查配置
    if not config.telegram_bot_enabled:
        logger.error("Telegram Bot is disabled in config")
        print("❌ Telegram Bot 已禁用，请设置 TELEGRAM_BOT_ENABLED=true")
        sys.exit(1)

    if not config.telegram_bot_token:
        logger.error("TELEGRAM_BOT_TOKEN is not configured")
        print("❌ 请在 .env 文件中配置 TELEGRAM_BOT_TOKEN")
        print()
        print("步骤:")
        print("1. 在 Telegram 中找到 @BotFather")
        print("2. 发送 /newbot 创建新 Bot")
        print("3. 将获得的 Token 填入 .env 文件:")
        print("   TELEGRAM_BOT_TOKEN=your_token_here")
        sys.exit(1)

    # 打印配置信息
    allowed_count = len([x for x in config.telegram_allowed_users.split(",") if x.strip()])
    admin_count = len([x for x in config.telegram_admin_users.split(",") if x.strip()])

    logger.info(f"Bot Token: {config.telegram_bot_token[:10]}...")
    logger.info(f"Allowed users: {allowed_count} configured")
    logger.info(f"Admin users: {admin_count} configured")

    if not config.telegram_allowed_users and not config.telegram_admin_users:
        logger.warning("⚠️  No user whitelist configured - Bot will be accessible to everyone!")
        print()
        print("⚠️  警告: 未配置用户白名单，所有人都可以使用此 Bot")
        print("   建议在 .env 中添加:")
        print("   TELEGRAM_ALLOWED_USERS=your_user_id")
        print()

    # 确保输出目录存在
    Path("output/logs").mkdir(parents=True, exist_ok=True)
    Path("output/tokens").mkdir(parents=True, exist_ok=True)

    # 创建并运行 Bot
    try:
        from bot.app import create_application

        logger.info("Creating Telegram Bot application...")
        application = create_application(config)

        logger.info("Starting Bot in polling mode...")
        print()
        print("🤖 Bot 已启动! 在 Telegram 中发送 /start 开始使用")
        print("   按 Ctrl+C 停止")
        print()

        # 运行 Bot
        application.run_polling(
            allowed_updates=["message"],
            drop_pending_updates=True  # 忽略 Bot 离线期间的消息
        )

    except KeyboardInterrupt:
        print()
        logger.info("Bot stopped by user")
        print("👋 Bot 已停止")

    except Exception as e:
        logger.exception("Failed to start Bot")
        print(f"❌ 启动失败: {e}")
        sys.exit(1)


if __name__ == "__main__":
    main()