"""Rename send_result -> send in a single test file (idempotent: only renames occurrences of send_result)."""
from __future__ import annotations

import sys
from pathlib import Path


def main() -> int:
 rel = sys.argv[1]
 p = Path(rel)
 with p.open("r", encoding="utf-8", newline="") as f:
  content = f.read()
 has_crlf = "\r\n" in content
 new_content = content.replace("send_result", "send")
 with p.open("w", encoding="utf-8", newline="") as f:
  f.write(new_content)
 remaining = new_content.count("send_result")
 before = content.count("send_result")
 print(f"{rel}: renamed {before - remaining} occurrences; remaining={remaining}")
 return 0


if __name__ == "__main__":
 raise SystemExit(main())