# -*- coding: utf-8 -*-
r'''把新增的 .sh 规范化成「LF + UTF-8 无 BOM」，并做静态检查。

为什么必须检查：
    仓库里所有 .sh 都是 LF + 无 BOM。一旦混进 CRLF，
    在 Linux 上跑会报 `bash: $'\r': command not found`，
    而且报错位置会很莫名（通常是 `#!/bin/bash\r` 那一行）。
    .bat 才用 GBK+CRLF，别搞混。

用法:
    python _build/fix_sh_format.py            # 检查并修
    python _build/fix_sh_format.py --check    # 只检查不改
'''
from __future__ import annotations

import subprocess
import sys
from pathlib import Path

ROOT = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote")
TARGETS = [
    ROOT / "relay" / "deploy.sh",
    ROOT / "relay" / "deploy-tune.sh",
]
BASH = r"C:\Program Files\Git\bin\bash.exe"


def main() -> int:
    check_only = "--check" in sys.argv
    bad = 0

    for path in TARGETS:
        if not path.is_file():
            print("  [缺] %s" % path.name)
            bad += 1
            continue
        raw = path.read_bytes()
        crlf = raw.count(b"\r\n")
        lone_cr = raw.count(b"\r") - crlf
        bom = raw.startswith(b"\xef\xbb\xbf")
        print("  %-18s CRLF=%-4d 单独CR=%-3d BOM=%s"
              % (path.name, crlf, lone_cr, "有" if bom else "无"))

        if crlf or lone_cr or bom:
            if check_only:
                print("      -> 需要修")
                bad += 1
            else:
                data = raw.replace(b"\r\n", b"\n").replace(b"\r", b"\n")
                if bom:
                    data = data[3:]
                path.write_bytes(data)
                print("      -> 已修成 LF + 无 BOM")
        else:
            print("      -> 格式正确")

    print()
    print("  语法检查（bash -n）:")
    for path in TARGETS:
        if not path.is_file():
            continue
        proc = subprocess.run(
            [BASH, "-n", str(path).replace("\\", "/")],
            capture_output=True, text=True, encoding="utf-8",
            errors="replace")
        if proc.returncode == 0:
            print("    ✓ %s" % path.name)
        else:
            print("    ✗ %s" % path.name)
            print("      " + (proc.stderr or "").strip()[:400])
            bad += 1

    print()
    if bad:
        print("  有 %d 个问题" % bad)
        return 1
    print("  全部通过")
    return 0


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