from __future__ import annotations

import os
from typing import Callable, Protocol


class DesktopAdapter(Protocol):
    def start_hotkey_listener(self, hotkey: str, callback: Callable[[], None]) -> None:
        raise NotImplementedError

    def stop_hotkey_listener(self) -> None:
        raise NotImplementedError

    def validate_hotkey(self, hotkey: str) -> None:
        raise NotImplementedError

    def start_cancel_listener(self, callback: Callable[[], None]) -> None:
        raise NotImplementedError

    def stop_cancel_listener(self) -> None:
        raise NotImplementedError

    def inject_text(
        self,
        text: str,
        backend: str,
        *,
        remove_transcription_from_clipboard: bool = False,
    ) -> None:
        raise NotImplementedError

    def run_tray(
        self,
        state_getter: Callable[[], str],
        on_quit: Callable[[], None],
        *,
        on_open_settings: Callable[[], None] | None = None,
        on_show_help: Callable[[], None] | None = None,
        on_show_about: Callable[[], None] | None = None,
        is_paused_getter: Callable[[], bool] | None = None,
        on_toggle_pause: Callable[[], None] | None = None,
        on_reload_config: Callable[[], None] | None = None,
        on_run_diagnostics: Callable[[], None] | None = None,
        on_open_config: Callable[[], None] | None = None,
    ) -> None:
        raise NotImplementedError

    def request_quit(self) -> None:
        raise NotImplementedError


def get_desktop_adapter() -> DesktopAdapter:
    session_type = os.getenv("XDG_SESSION_TYPE", "").lower()
    if session_type == "wayland" or os.getenv("WAYLAND_DISPLAY"):
        raise SystemExit(
            "Wayland is not supported yet. Run under X11 (XDG_SESSION_TYPE=x11) to use aman."
        )
    from desktop_x11 import X11Adapter

    return X11Adapter()