abx

#!/bin/python

import os, random, sys

CMD = 'mpv --really-quiet --vid=no "{}"'

if len(sys.argv) != 3:
    print(f"Usage {sys.argv[0]} FILE_A FILE_B")
    sys.exit(1)

fa, fb = sys.argv[1:3]

G = {
    'a': fa,
    'b': fb
}

total = 0
right = 0

while True:
    i = input("abX> ").strip().lower()
    if i == 'q':
        break
    if not i:
        i = 'x'
    elif i not in 'abx':
        continue
    guess = False
    if i == 'x':
        guess = True
        i = random.choice('ab')
    print("Playing...")
    os.system(CMD.format(G[i]))
    if guess:
        j = input(" ab? ").strip().lower()
        if j == '?':
            print("Skipping")
            continue
        total += 1
        if j == i:
            right += 1
            print("Correct")
        else:
            print("Wrong")

        print(" -- {:.2f}% [{}/{}]".format(
            100*right/total,
            right,
            total
        ))