#!/usr/bin/env python
import PySimpleGUIWeb as sg
import time

# ---------------- Create Form ----------------
layout = [
 [sg.Text('', background_color='black')],
 [sg.Text('00:00', size=(30, 1), font=('Helvetica', 30), justification='center',
 text_color='white', key='text', background_color='black')],
 [sg.Text('', background_color='black')],
 [sg.Button('Pause', key='button', button_color=('white', '#001480')),
 sg.Button('Reset', button_color=('white', '#007339'), key='Reset'),
 sg.Exit(button_color=('white', '#8B1A1A'), key='Exit', )],
]

window = sg.Window('Running Timer', layout,
 background_color='black', font='Helvetica 18')

# ---------------- main loop ----------------
current_time = 0
paused = False
start_time = int(round(time.time() * 100))
while True:
 # --------- read and update window --------
 if not paused:
 event, values = window.read(timeout=0)
 current_time = int(round(time.time() * 100)) - start_time
 else:
 event, values = window.read()
 print(event, values) if event != sg.TIMEOUT_KEY else None

 if event == 'button':
 event = window[event].GetText()
 # --------- Do Button Operations --------
 
 if event in (None, 'Exit'): # ALWAYS give a way out of program
 break
 
 if event == 'Reset':
 start_time = int(round(time.time() * 100))
 current_time = 0
 paused_time = start_time
 
 elif event == 'Pause':
 paused = True
 paused_time = int(round(time.time() * 100))
 element = window['button']
 element.update(text='Run')
 
 elif event == 'Run':
 paused = False
 start_time = start_time + int(round(time.time() * 100)) - paused_time
 element = window['button']
 element.update(text='Pause')

 # --------- Display timer in window --------
 window['text'].update('{:02d}:{:02d}.{:02d}'.format((current_time // 100) // 60,
 (current_time //
 100) % 60,
 current_time % 100))
# --------- After loop --------
window.close()