#!/usr/bin/python3

# multiplication.py
# This program teaches multiplication
# Copyright (C) 2020, 2021, 2022 Scott C. MacCallum
# Email: scm@sdf.org

# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.

# This program is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
# details.

# You should have received a copy of the GNU Affero General Public License along
# with this program.  If not, see <http://www.gnu.org/licenses/>.

import random

def facts():
    print('')

    multiplicand = int(input('What facts do you want to see? '))

    for multiplier in range(0,13):
        product = multiplicand * multiplier
        print('')
        print(f'{multiplicand} x {multiplier} = {product}')

def ordered_facts():
    print('')
    print('')
    
    multiplicand = int(input('What facts do you want to test? '))

    for multiplier in range(0,13):
        product = multiplicand * multiplier
        print('')
        print(f'What is {multiplicand} x {multiplier}? ', end='')
        answer = input()
        answer = int(answer)
        if answer == product:
            print('Correct!')
        else:
            print('Not correct.')

def random_facts():
    print('')
    print('')
    
    multiplicand = int(input('What facts do you want to test? '))

    for multiplier in range(0,13):
        multiplier = random.randint(0,13)
        product = multiplicand * multiplier
        print('')
        print(f'What is {multiplicand} x {multiplier}? ', end='')
        answer = input()
        answer = int(answer)
        if answer == product:
            print('Correct!')
        else:
            print('Not correct.')

# def random_all_facts():

def table():
    print('')
    print('   ', end='')

    for multiplier in range(0,9):
        print(f' {multiplier} ', end='')

    for multiplier in range(9,10):
        print(f'  {multiplier} ', end='')

    for multiplier in range(10,13):
        print(f' {multiplier} ', end='')

    print('')
    print('  x', end='')

    for multiplier in range(1,43):
        print('_', end='')

    print('')
    print(' 0| ', end='')

    multiplicand = 0

    for multiplier in range(1,3):
        product = multiplicand * multiplier
        print(f'{product}  ', end='')

    for multiplier in range(3,4):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(4,9):
        product = multiplicand * multiplier
        print(f' {product}', end='')

    for multiplier in range(9,13):
        product = multiplicand * multiplier
        print(f'  {product}', end='')

    print('')
    print(' 1| ', end='')

    multiplicand = 1

    for multiplier in range(1,3):
        product = multiplicand * multiplier
        print(f'{product}  ', end='')

    for multiplier in range(3,4):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(4,9):
        product = multiplicand * multiplier
        print(f' {product}', end='')

    for multiplier in range(9,13):
        product = multiplicand * multiplier
        print(f'  {product}', end='')

    print('')
    print(' 2| ', end='')

    multiplicand = 2

    for multiplier in range(1,3):
        product = multiplicand * multiplier
        print(f'{product}  ', end='')

    for multiplier in range(3,4):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(4,9):
        product = multiplicand * multiplier
        print(f' {product}', end='')

    for multiplier in range(9,13):
        product = multiplicand * multiplier
        print(f'  {product}', end='')

    print('')

    multiplicand = 3

    print(' 3| ', end='')

    for multiplier in range(1,3):
        product = multiplicand * multiplier
        print(f'{product}  ', end='')

    for multiplier in range(3,9):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(9,13):
        product = multiplicand * multiplier
        print(f' {product} ', end='')

    print('')

    multiplicand = 4

    print(' 4| ', end='')

    for multiplier in range(1,2):
        product = multiplicand * multiplier
        print(f'{product}  ', end='')

    for multiplier in range(2,8):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(8,13):
        product = multiplicand * multiplier
        print(f'{product}  ', end='')

    print('')

    multiplicand = 5

    print(' 5| ', end='')

    for multiplier in range(1,9):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(9,13):
        product = multiplicand * multiplier
        print(f' {product} ', end='')

    print('')

    multiplicand = 6

    print(' 6| ', end='')

    for multiplier in range(1,9):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(9,13):
        product = multiplicand * multiplier
        print(f' {product} ', end='')

    print('')

    multiplicand = 7

    print(' 7| ', end='')

    for multiplier in range(1,9):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(9,13):
        product = multiplicand * multiplier
        print(f' {product} ', end='')

    print('')

    multiplicand = 8

    print(' 8| ', end='')

    for multiplier in range(1,9):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(9,13):
        product = multiplicand * multiplier
        print(f' {product} ', end='')

    print('')

    multiplicand = 9

    print(' 9| ', end='')

    for multiplier in range(1,9):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(9,11):
        product = multiplicand * multiplier
        print(f' {product} ', end='')

    for multiplier in range(11,13):
        product = multiplicand * multiplier
        print(f' {product}', end='')

    print('')

    multiplicand = 10

    print('10|', end='')

    for multiplier in range(1,9):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(9,10):
        product = multiplicand * multiplier
        print(f' {product} ', end='')

    for multiplier in range(10,11):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(11,13):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    print('')

    multiplicand = 11

    print('11|', end='')

    for multiplier in range(1,9):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(9,10):
        product = multiplicand * multiplier
        print(f' {product} ', end='')

    for multiplier in range(10,13):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    print('')

    multiplicand = 12

    print('12|', end='')

    for multiplier in range(1,10):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

    for multiplier in range(10,13):
        product = multiplicand * multiplier
        print(f'{product} ', end='')

def main():
    #facts()
    #table()
    #ordered_facts()

    random_facts()

    print('')
    print('')
if __name__ == "__main__":
    main()