"""Resolve bundled helper binaries (ffplay/ffmpeg) next to the package or PyInstaller extract dir."""

from __future__ import annotations

import sys
from pathlib import Path


def package_root() -> Path:
    """Directory containing `voice_confirmation_client` package."""
    return Path(__file__).resolve().parent.parent


def frozen_base() -> Path | None:
    """PyInstaller onefile/onedir: sys._MEIPASS or executable dir."""
    if getattr(sys, "frozen", False):
        meipass = getattr(sys, "_MEIPASS", None)
        if meipass:
            return Path(meipass)
        return Path(sys.executable).resolve().parent
    return None


def bin_dir() -> Path:
    """Optional `bin/` next to package (dev) or under _MEIPASS (frozen)."""
    fb = frozen_base()
    if fb is not None:
        d = fb / "voice_confirmation_bin"
        if d.is_dir():
            return d
    return package_root() / "bin"


def find_ffplay() -> Path | None:
    for name in ("ffplay", "ffplay.exe"):
        p = bin_dir() / name
        if p.is_file():
            return p
    return None


def find_ffmpeg() -> Path | None:
    for name in ("ffmpeg", "ffmpeg.exe"):
        p = bin_dir() / name
        if p.is_file():
            return p
    return None