#!/usr/bin/env python3
#
#       This program is free software; you can redistribute it and/or modify
#       it under the terms of the GNU General Public License as published by
#       the Free Software Foundation; either version 2 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 General Public License for more details.
#
#       You should have received a copy of the GNU General Public License
#       along with this program; if not, write to the Free Software
#       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#       MA 02110-1301, USA.

from random import choice

def get_words(msg):
    msg += "? "
    while True:
        i = input(msg)
        if i:
            return i.lower()
        else:
            print("Type a", msg.rstrip("? ").lower())
            continue

def sent(noun, verb, adj):
    sent = []
    sent.append("{0} {1} to the {2} show.".format(noun.capitalize(), verb, adj))
    sent.append("The {2} {0} did a spin and {1} to the park.".format(noun, verb, adj))
    sent.append("{0} made a {2} {1}.".format(noun.capitalize(), verb, adj))
    sent.append("The people and {0} are {1} for the {2} man.".format(noun, verb, adj))
    print(choice(sent))

def main():
    print("adlibs.py: prints random short sentances depending on user input.",
          "Use ^C or ^D to exit.", sep="\n")
    while True:
        try:
            noun = get_words("Noun")
            verb = get_words("Verb")
            adj = get_words("Adjective")
            sent(noun, verb, adj)
        except (KeyboardInterrupt, EOFError):
            print("\n")
            break

if __name__ == "__main__":
    main()