#!/usr/bin/env python3

import re
import subprocess
import sys
import time
from pathlib import Path

URI_RE = re.compile(r'aesgcm://[^\s<>"\']+')

if len(sys.argv) != 2:
    print("usage: profanity-aesgcm-watch /path/to/chat.log", file=sys.stderr)
    sys.exit(1)

log_path = Path(sys.argv[1])
if not log_path.exists():
    print(f"log file not found: {log_path}", file=sys.stderr)
    sys.exit(1)

seen = set()

with log_path.open("r", encoding="utf-8", errors="replace") as f:
    f.seek(0, 2)  # start at end

    while True:
        line = f.readline()
        if not line:
            time.sleep(0.5)
            continue

        m = URI_RE.search(line)
        if not m:
            continue

        uri = m.group(0)
        if uri in seen:
            continue

        seen.add(uri)

        subprocess.run(
            [str(Path.home() / ".local/bin/profanity-aesgcm-handler"), uri],
            check=False,
        )