"""消息问答助手 — 入口"""

import logging
import os
import sys
import signal

# 确保在项目目录
os.chdir(os.path.dirname(os.path.abspath(__file__)))

# 配置日志
logging.basicConfig(
    level=logging.DEBUG,
    format="%(asctime)s [%(name)s] %(levelname)s: %(message)s",
    datefmt="%H:%M:%S",
)

# 文件日志（持久化，便于排查）
_fh = logging.FileHandler("msgbot.log", encoding="utf-8", mode="w")
_fh.setLevel(logging.DEBUG)
_fh.setFormatter(logging.Formatter("%(asctime)s [%(name)s] %(levelname)s: %(message)s"))

# 过滤 comtypes 的 DEBUG 洪流
class ComtypesFilter(logging.Filter):
    def filter(self, record):
        return not record.name.startswith("comtypes") or record.levelno >= logging.WARNING

_fh.addFilter(ComtypesFilter())
logging.getLogger().addHandler(_fh)

logger = logging.getLogger("msgbot")


def main():
    logger.info("消息问答助手启动中...")

    # 动态导入 gui，避免 customtkinter 等缺失导致整个程序崩溃前无日志
    try:
        from gui import MsgBotApp
    except ImportError as e:
        logger.error(f"导入 GUI 失败: {e}")
        logger.error("请先安装依赖: pip install -r requirements.txt")
        sys.exit(1)

    app = MsgBotApp()

    # Ctrl+C 信号处理：Windows Tkinter mainloop 不响应 KeyboardInterrupt
    # 需 signal handler 强制停止监控 + 退出
    def _sigint_handler(sig, frame):
        logger.info("收到 Ctrl+C，正在关闭...")
        app.monitor.stop()
        app.quit()
        sys.exit(0)

    signal.signal(signal.SIGINT, _sigint_handler)

    app.mainloop()


if __name__ == "__main__":
    main()