#!/usr/bin/env python3
"""Inspect audio metadata with bounded, read-only ffprobe."""
import argparse
import json
import shutil
import subprocess
import sys


def main():
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("input")
    parser.add_argument("--ffprobe", default="ffprobe")
    parser.add_argument("--timeout", type=float, default=15.0)
    parser.add_argument("--silence", action="store_true")
    parser.add_argument("--json", action="store_true")
    args = parser.parse_args()
    tool = shutil.which(args.ffprobe)
    if not tool:
        print(json.dumps({"ok": False, "status": "missing_tool", "error": "ffprobe not found"}))
        return 3
    try:
        result = subprocess.run([tool, "-v", "error", "-show_format", "-show_streams", "-of", "json", args.input], capture_output=True, text=True, timeout=args.timeout)
    except subprocess.TimeoutExpired:
        print(json.dumps({"ok": False, "status": "timeout", "error": "ffprobe timed out"}))
        return 4
    if result.returncode:
        print(json.dumps({"ok": False, "status": "probe_failed", "error": result.stderr.strip() or "ffprobe failed"}))
        return 1
    try:
        document = json.loads(result.stdout)
    except json.JSONDecodeError:
        print(json.dumps({"ok": False, "status": "invalid_json", "error": "invalid ffprobe JSON"}))
        return 1
    payload = {"ok": True, "status": "ok", "input": args.input, "probe": document}
    if args.silence:
        payload["silence"] = {"status": "candidate_only", "note": "silence intervals require review; no editorial cut was made"}
    print(json.dumps(payload, indent=2, sort_keys=True))
    return 0


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