#!/usr/bin/env python3
from pathlib import Path

import dearpygui.dearpygui as dpg

from vrutil.dialogs import Dialogs
from vrutil.geproton import GeProtonSettings
from vrutil.gpu import GpuSettings
from vrutil.steamvr import SteamVrSettings
from vrutil.valveindex import ValeIndexSettings

_DEBUG = False
_DIR = Path(__file__).parent
_ASSET_DIR = f'{_DIR}/assets'
_NO_STEAM_FOUND = 'No Steam installation found!'


def get_steam_dir():
    possible_paths = [
        '.local/share/Steam',
        '.steam/steam',
        '.steam/root'
    ]
    for path in possible_paths:
        candidate = (Path.home() / Path(path)).resolve()
        if candidate.exists():
            return str(candidate)
    return None


def show_window():
    steam_dir = get_steam_dir()
    dialogs = Dialogs()
    gpu_settings = GpuSettings()
    steamvr_settings = SteamVrSettings(steam_dir)
    geproton_settings = GeProtonSettings(steam_dir, dialogs)
    valveindex_settings = ValeIndexSettings()

    dpg.create_context()
    dpg.configure_app(manual_callback_management=_DEBUG)

    with dpg.font_registry():
        with dpg.font(f'{_ASSET_DIR}/Hack-Regular.ttf', size=14, pixel_snapH=True) as default_font:
            dpg.add_font_range(0x2190, 0x21FF)
    dpg.bind_font(default_font)

    dpg.create_viewport(title='VRUtil', width=750, height=550)

    dialogs.create_dialogs()

    with dpg.window() as main_window:
        dpg.add_text('Current Steam dir:')
        dpg.add_text(get_steam_dir() or _NO_STEAM_FOUND)

        dpg.add_spacer(height=10)

        if steam_dir is not None:
            gpu_settings.create_views()
            steamvr_settings.create_views()
            geproton_settings.create_views()
            valveindex_settings.create_views()

    dpg.setup_dearpygui()
    dpg.show_viewport()
    dpg.set_primary_window(main_window, True)
    if _DEBUG:
        while dpg.is_dearpygui_running():
            jobs = dpg.get_callback_queue()  # retrieves and clears queue
            dpg.run_callbacks(jobs)
            dpg.render_dearpygui_frame()
    else:
        dpg.start_dearpygui()
    dpg.destroy_context()


def main():
    show_window()


if __name__ == '__main__':
    main()