import queue
import threading
from enum import Enum

class AppState(Enum):
    IDLE         = "idle"
    RECORDING    = "recording"
    TRANSCRIBING = "transcribing"

# ── Log queue ─────────────────────────────────────────────────────────────────

_log_buffer: list[str] = []
_log_queue: queue.Queue | None = None
_log_lock = threading.Lock()
_MAX_BUFFER = 500

def log(msg: str) -> None:
    with _log_lock:
        if _log_queue is not None:
            _log_queue.put(msg)
        else:
            if len(_log_buffer) >= _MAX_BUFFER:
                _log_buffer.pop(0)
            _log_buffer.append(msg)

def set_log_queue(q: queue.Queue) -> None:
    global _log_queue
    with _log_lock:
        _log_queue = q
        buffered = list(_log_buffer)
        _log_buffer.clear()
    for msg in buffered:
        q.put_nowait(msg)

# ── Global state ──────────────────────────────────────────────────────────────

state: AppState = AppState.IDLE
audio_chunks: list = []
model = None
tray_icon = None
overlay_window = None
overlay_tk = None
hotkey_listener = None
audio_manager = None