how to calculate based on timestamp and get the progress before the max full value?

def full_energy():
     time_now = 1666650096 #changes every update
     time_end = 1666679529 
     max_energy = 50 

     diff = datetime.utcfromtimestamp(time_now) - datetime.utcfromtimestamp(time_end)
     secs = diff.total_seconds()
     ???

# expected output
# x/y (z)
# 25/50 (50%)

how to get the value of x and z based on this sample?

CodePudding user response：

Something like this will work. You need to provide the start time to compute percent completed. Not sure how you want the display to function:

from datetime import datetime, timedelta
import time

def full_energy(start, now, end):
    max_energy = 50
    percent = (now - start) / (end - start)
    current_energy = max_energy * percent
    # In a typical text console this will overwrite the same line
    print(f'\r{current_energy:.0f}/{max_energy} ({percent:.0%})', end='', flush=True)

start = datetime.now()
end = start   timedelta(seconds=10)

while (now := datetime.now()) <= end:
    time.sleep(.2)
    full_energy(start, now, end)