# -*- coding: utf-8 -*-
"""
subtitle-studio 后台启动器（无阻塞）
用 subprocess.Popen 启动 uvicorn，shell 调用立即返回
日志写到 logs/server.log
用法: python start_server.py [port]
"""
import sys, os, subprocess, time, threading

PYTHON = sys.executable
PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
APP_DIR = os.path.join(PROJECT_ROOT, "src")
LOG_DIR = os.path.join(PROJECT_ROOT, "logs")
PORT = sys.argv[1] if len(sys.argv) > 1 else "8788"

os.makedirs(LOG_DIR, exist_ok=True)
log_path = os.path.join(LOG_DIR, "server.log")


def is_running(port):
    """端口是否已被监听"""
    try:
        import socket
        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
            s.settimeout(1)
            return s.connect_ex(("127.0.0.1", int(port))) == 0
    except Exception:
        return False


def main():
    if is_running(PORT):
        print(f"subtitle-studio 已在运行: http://127.0.0.1:{PORT}")
        return

    # 打开日志文件（追加模式）
    logf = open(log_path, 'a', encoding='utf-8', buffering=1)

    # 真正的异步启动：不等待，不继承句柄
    proc = subprocess.Popen(
        [PYTHON, "-m", "uvicorn", "substudio.main:app",
         "--host", "127.0.0.1", "--port", PORT, "--app-dir", APP_DIR],
        cwd=PROJECT_ROOT,
        stdout=logf,
        stderr=subprocess.STDOUT,
        creationflags=subprocess.CREATE_NO_WINDOW,
    )
    print(f"已启动 subtitle-studio (PID {proc.pid})")
    print(f"服务地址: http://127.0.0.1:{PORT}")
    print(f"日志: {log_path}")
    # 不等待进程，直接返回


if __name__ == "__main__":
    main()