# -*- coding: utf-8 -*-
"""
Worker 启动入口。
启动方式: python -m worker.main [--server ws://IP:8000/ws] [--worker-id pc-a] [--worker-name 电脑A]
"""
from __future__ import annotations

import argparse
import asyncio
import logging
import sys

from worker import config
from worker.tasks.registry import register_all_handlers
from worker.ws_client import WorkerWSClient
from tunnel.client import TunnelClient

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s  %(name)-28s  %(levelname)-5s  %(message)s",
    datefmt="%Y-%m-%d %H:%M:%S",
)
logger = logging.getLogger("worker.main")


def parse_args():
    parser = argparse.ArgumentParser(description="Browser Control Worker Agent")
    parser.add_argument("--worker", action="store_true", help=argparse.SUPPRESS)
    parser.add_argument(
        "--server",
        default=config.SERVER_WS_URL,
        help=f"中央服务器 WebSocket 地址 (默认: {config.SERVER_WS_URL})",
    )
    parser.add_argument(
        "--worker-id",
        default=config.WORKER_ID,
        help=f"Worker ID (默认: {config.WORKER_ID})",
    )
    parser.add_argument(
        "--worker-name",
        default=config.WORKER_NAME,
        help=f"Worker 名称 (默认: {config.WORKER_NAME})",
    )
    parser.add_argument(
        "--bit-api",
        default=config.BIT_API_BASE,
        help=f"比特浏览器本地 API 地址 (默认: {config.BIT_API_BASE})",
    )
    parser.add_argument(
        "--no-tunnel",
        action="store_true",
        help="禁用内网穿透隧道（不与隧道服务端连接）",
    )
    return parser.parse_args()


def _local_port_from_bit_api(bit_api_base: str) -> int:
    """从 BIT_API_BASE (e.g. http://127.0.0.1:54345) 解析端口。"""
    try:
        from urllib.parse import urlparse
        p = urlparse(bit_api_base if "://" in bit_api_base else "http://" + bit_api_base)
        return p.port or 54345
    except Exception:
        return config.TUNNEL_LOCAL_PORT


def _extract_host_from_ws_url(ws_url: str) -> str:
    """从 WebSocket URL (如 ws://8.137.99.82:9000/ws) 中提取 host。"""
    try:
        from urllib.parse import urlparse
        p = urlparse(ws_url)
        return p.hostname or "127.0.0.1"
    except Exception:
        return "127.0.0.1"


async def run(args):
    # 注册所有任务处理器
    register_all_handlers()
    logger.info("已注册任务处理器")

    client = WorkerWSClient(
        server_url=args.server,
        worker_id=args.worker_id,
        worker_name=args.worker_name,
        bit_api_base=args.bit_api,
    )

    tunnel_enabled = config.TUNNEL_ENABLED and not args.no_tunnel
    tunnel_client = None
    if tunnel_enabled:
        # 从命令行 --server 参数中提取云服务器 host（而非配置文件默认值）
        tunnel_host = _extract_host_from_ws_url(args.server)
        tunnel_client = TunnelClient(
            server_host=tunnel_host,
            control_port=config.TUNNEL_CONTROL_PORT,
            stream_port=config.TUNNEL_STREAM_PORT,
            worker_id=args.worker_id,
            local_port=_local_port_from_bit_api(args.bit_api),
        )
        logger.info(
            "隧道已启用: 暴露本地 %s -> %s (worker_id=%s)",
            _local_port_from_bit_api(args.bit_api), tunnel_host, args.worker_id,
        )

    logger.info(
        "Worker 启动: id=%s, name=%s, server=%s",
        args.worker_id, args.worker_name, args.server,
    )

    async def run_worker():
        await client.run()

    async def run_tunnel():
        if tunnel_client:
            await tunnel_client.run()

    worker_task = asyncio.create_task(run_worker())
    tunnel_task = asyncio.create_task(run_tunnel()) if tunnel_client else None

    try:
        if tunnel_task is not None:
            await asyncio.gather(worker_task, tunnel_task)
        else:
            await worker_task
    except KeyboardInterrupt:
        logger.info("收到中断信号，正在退出...")
        worker_task.cancel()
        if tunnel_task is not None:
            tunnel_task.cancel()
        try:
            await worker_task
        except asyncio.CancelledError:
            pass
        if tunnel_task is not None:
            try:
                await tunnel_task
            except asyncio.CancelledError:
                pass
            await tunnel_client.stop()
        await client.stop()


def main():
    args = parse_args()
    try:
        asyncio.run(run(args))
    except KeyboardInterrupt:
        logger.info("Worker 已退出")


if __name__ == "__main__":
    main()