from time import sleep
import pygame
import pygame_menu
from pygame_menu import themes

pygame.init()
surface = pygame.display.set_mode((600, 400))

def set_difficulty(value, difficulty):
    print(value)
    print(difficulty)

def start_the_game():
    pass
    mainmenu._open(loading)
    pygame.time.set_timer(update_loading, 30)

def level_menu():
    mainmenu._open(level)


mainmenu = pygame_menu.Menu('welcome', 600, 400, theme=themes.THEME_SOLARIZED)
mainmenu.add.text_input('Name:', default='username', maxchar=20)
mainmenu.add.button('Play', start_the_game)
mainmenu.add.button('Levels', level_menu)
mainmenu.add.button('Quit', pygame_menu.events.EXIT)

level = pygame_menu.Menu('Select a Difficulty', 600, 400, theme=themes.THEME_BLUE)
level.add.selector('Difficulty:', [('hard', 1), ('easy', 2)], onchange=set_difficulty)

mainmenu.mainloop(surface)

loading = pygame_menu.Menu('Loading the game...', 600, 400, theme=themes.THEME_DARK)
loading.add.progress_bar("progress", progressbar_id = "1", default=0, width = 200)

arrow = pygame_menu.widgets.LeftArrowSelection(arrow_size = (10, 15))

update_loading = pygame.USEREVENT + 0

while True:
    events = pygame.event.get()
    for event in events:
        if event.type == update_loading:
            progress = loading.get_widget ("1")
            progress.set_value(progress.get_value () + 1 )
            if progress.get_value() == 100:
                pygame.time.set_timer(update_loading, 0)
        if event.type == pygame.QUIT:
                exit()

    if mainmenu.is_enabled():
            mainmenu.update(events)
            mainmenu.draw(surface)
            if(mainmenu.get_current().get_selected_widget()):
                arrow.draw(surface, mainmenu.get_current().get_selected_widget())

    pygame.display.update