#liljas17@ru.is and stefana19@ru.is
SPACE = ' '

def get_num_rows():
    '''Prompts user for numbers of rows '''
    num_rows = int(input('Enter number of rows: '))

    return num_rows

def get_num_seats():
    ''' Prompts user asking how many seats in each row '''
    num_seats = int(input('Enter number of seats in each row: '))

    return num_seats

def get_seating(rows, seats):
    ''' Creates seating arrangement with single alphabet character for each seat '''
    seating =[]
    for i in range(rows):
        all_rows = []
        for j in range(65, 90):
            seat = chr(j)
            all_rows.append(seat)
        seating.append(all_rows)
    return seating

def print_seating(rows, seats, seating):
    '''
    Prints out the seating arrangement in accordance with the number of rows and seats per row
    We created the constant SPACE as a single space, simply because it's easier to see and
    troubleshoot for exact spacing in Mimir
    '''
    seating_num = 0
    for i in range(rows):
        seating_num += 1
        print('{:>2}{}'.format(seating_num, SPACE*3), end = '')
        for j in range(seats):
            seats_l = seating[i][j]
            print('{:}{}'.format(SPACE, seats_l), end = '')
        for j in range(seats, seats + 1):
            print(end = '   ')
        for j in range(seats, seats * 2):
            seats_r = seating[i][j]
            print('{:}{}'.format(SPACE, seats_r), end = '')
        print()


def choose_seat(seating):
    ''' Prompts the user for a seat to reserve on the plane. This function is unfinished '''
    input_choice = input('Input seat number (row seat): ')
    seat_choice = input_choice.split()
    if seat_choice != seating:
        print('Seat number is invalid!')
    elif seat_choice == 'X':
        print('That seat is taken!')
    else:
        print()

    return seat_choice

def main():
    rows = get_num_rows()
    seats = get_num_seats()
    org_seating = get_seating(rows, seats)
    print_seating(rows, seats, org_seating)
    #seat_choice = choose_seat(org_seating)
main()