# -*- coding: utf-8 -*-
"""验证「电脑本地剪贴板变化 -> 推送给客户端」。

**安全说明**：只用 PowerShell 的 Set-Clipboard，绝不用 ctypes 写剪贴板。
上一版用 ctypes 时 GlobalAlloc 返回的 64 位句柄被 ctypes 按 32 位 int
截断，SetClipboardData 拿着坏句柄把系统剪贴板搞成"被占用"，
连 PowerShell 都用不了 —— 那个脚本已经删掉了。
"""
from __future__ import annotations

import json
import shutil
import socket
import subprocess
import sys
import time
from pathlib import Path

ROOT = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote")
EXE = ROOT / "dist_exe" / "ykxmz" / "ykxmz.exe"
PORT = 8843
NO_WINDOW = 0x08000000


def set_clipboard(text: str) -> bool:
    """用 PowerShell 设剪贴板，并等它真的完成。"""
    proc = subprocess.run(
        ["powershell", "-NoProfile", "-Command", f"Set-Clipboard -Value '{text}'"],
        capture_output=True, creationflags=NO_WINDOW, timeout=20)
    return proc.returncode == 0


def get_clipboard() -> str:
    proc = subprocess.run(
        ["powershell", "-NoProfile", "-Command", "Get-Clipboard -Raw"],
        capture_output=True, creationflags=NO_WINDOW, timeout=20)
    return (proc.stdout or b"").decode("utf-8", "replace").strip()


def main() -> int:
    d = EXE.parent
    real = d / "data"
    bak = None
    if real.exists():
        bak = d / "data_bk_cp2"
        if bak.exists():
            shutil.rmtree(bak, ignore_errors=True)
        shutil.move(str(real), str(bak))

    proc = None
    try:
        proc = subprocess.Popen(
            [str(EXE), "--port", str(PORT), "--add-device", "10"],
            cwd=str(d), stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
        code = ""
        for _ in range(40):
            time.sleep(0.5)
            try:
                code = json.loads((d / "data" / "settings.json").read_text(
                    encoding="utf-8")).get("pairing_code", "")
            except Exception:                             # noqa: BLE001
                code = ""
            if code:
                try:
                    probe = socket.create_connection(("127.0.0.1", PORT), timeout=1)
                    probe.close()
                    break
                except OSError:
                    continue

        sock = socket.create_connection(("127.0.0.1", PORT), timeout=15)
        sock.settimeout(3)
        buf = b""

        def send(obj):
            sock.sendall((json.dumps(obj, ensure_ascii=False) + "\n").encode())

        def read(timeout=3):
            nonlocal buf
            deadline = time.time() + timeout
            while True:
                while b"\n" not in buf:
                    if time.time() > deadline:
                        return None
                    try:
                        chunk = sock.recv(65536)
                    except (TimeoutError, OSError):
                        return None
                    if not chunk:
                        return None
                    buf += chunk
                line, _, buf = buf.partition(b"\n")
                try:
                    return json.loads(line.decode("utf-8"))
                except Exception:                         # noqa: BLE001
                    continue

        send({"cmd": "pair", "deviceId": "cp", "deviceName": "cp", "code": code})
        read(timeout=10)
        print("  已配对")

        send({"cmd": "clip_get"})
        print("  服务端读到的剪贴板: " + str(read(timeout=10)))

        text = "本地改动-" + str(int(time.time()))
        print("  用 PowerShell 写入: " + text)
        ok = set_clipboard(text)
        print("     写入成功: " + str(ok))
        print("     PowerShell 读回: " + get_clipboard())

        # 等服务端推送
        print("  等推送…")
        got = None
        deadline = time.time() + 20
        while time.time() < deadline:
            message = read(timeout=2)
            if message is None:
                continue
            if message.get("event") == "clip":
                got = message
                break
        if got:
            print("  ✓ 收到推送: " + str(got)[:100])
        else:
            print("  ✗ 20 秒内没收到 clip 推送")
        sock.close()
        return 0 if got else 1
    finally:
        if proc:
            try:
                proc.terminate()
                proc.wait(timeout=8)
            except Exception:                             # noqa: BLE001
                try:
                    proc.kill()
                except Exception:                     # noqa: BLE001
                    pass
        time.sleep(1)
        if real.exists():
            shutil.rmtree(real, ignore_errors=True)
        if bak and bak.exists():
            shutil.move(str(bak), str(real))


if __name__ == "__main__":
    sys.exit(main())