# -*- coding: utf-8 -*-
r"""修两个 BOM 问题。

PowerShell 5.1 的 -Encoding UTF8 会**写 BOM**，害了两处：
    1. .gitignore 开头多了 \ufeff -> 第一条规则失效
       （结果 dist/ 被提交进去，3195 个文件）
    2. ~/.ssh/config 开头多了 \ufeff -> ssh 直接报
       "no argument after keyword '\357\273\277'"

统一改成**不带 BOM 的 UTF-8**。
"""
from __future__ import annotations

import sys
from pathlib import Path

ROOT = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote")
SSH_CONFIG = Path.home() / ".ssh" / "config"

GITIGNORE = """# ---- 构建产物（不提交，release 里单独发）----
/dist/
/dist_exe/
/dist_preview/
/_build/jc*/
/_build/out*/
/_build/*.png
/_build/icon_source.png
/_build/icon_preview.png
/_build/admin_preview*.png
/_build/ui_preview.png
/_build/_unit.txt
/_tests/out_java/
/_tests/out_app/
/_tests/received/
/_tests/_stubdata/
/_tests/shots/

# ---- Python ----
__pycache__/
*.py[cod]
*.egg-info/
.venv/
venv/

# ---- 编辑器 / 系统 ----
.vscode/
.idea/
*.swp
Thumbs.db
desktop.ini
.DS_Store

# ---- 其它 ----
*.log
*.tmp
"""

SSH_BLOCK = """# ykxmz-gitee
Host gitee.com
    HostName gitee.com
    User git
    IdentityFile ~/.ssh/id_ed25519_gitee
    IdentitiesOnly yes
    StrictHostKeyChecking accept-new
"""


def fix(path: Path, content: str) -> None:
    path.parent.mkdir(parents=True, exist_ok=True)
    path.write_bytes(content.encode("utf-8"))     # 明确不带 BOM
    raw = path.read_bytes()
    bom = "有（不对）" if raw.startswith(b"\xef\xbb\xbf") else "无 ✓"
    print(f"  {path}")
    print(f"    字节数 {len(raw)}  首字节 {raw[:3].hex()}  BOM: {bom}")


def main() -> int:
    print("  重写这两个文件（不带 BOM）：")
    fix(ROOT / ".gitignore", GITIGNORE)
    fix(SSH_CONFIG, SSH_BLOCK)
    return 0


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