#!/usr/bin/env python3
"""将本目录下的 index.html + voice_app.js 打成单文件 dist/index.html。"""

from __future__ import annotations

import re
import shutil
import stat
from pathlib import Path


def main() -> None:
    root = Path(__file__).resolve().parents[1]
    index = root / "index.html"
    app_js = root / "voice_app.js"
    out_dir = root / "dist"
    out_file = out_dir / "index.html"
    if not index.is_file() or not app_js.is_file():
        raise SystemExit(f"missing {index} or {app_js}")
    html = index.read_text(encoding="utf-8")
    js = app_js.read_text(encoding="utf-8")
    pat = re.compile(
        r'<script\s+src=["\']voice_app\.js["\']\s+defer\s*>\s*</script>',
        re.IGNORECASE,
    )
    if not pat.search(html):
        raise SystemExit("index.html must contain <script src=\"voice_app.js\" defer></script>")

    def _repl(_m):
        return "<script defer>\n" + js + "\n</script>"

    inlined = pat.sub(_repl, html, count=1)
    out_dir.mkdir(parents=True, exist_ok=True)
    out_file.write_text(inlined, encoding="utf-8")
    for name in ("start_http.sh", "start_http.bat"):
        src = root / name
        dst = out_dir / name
        shutil.copy2(src, dst)
    sh = out_dir / "start_http.sh"
    sh.chmod(sh.stat().st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH)
    print(f"wrote {out_file} (+ start_http.* in dist/)")


if __name__ == "__main__":
    main()