# Natural Language Toolkit: Teen Chatbot
#
# Copyright (C) 2001-2026 NLTK Project
# Author: Selina Dennis <sjmd@csse.unimelb.edu.au>
# URL: <https://www.nltk.org/>
# For license information, see LICENSE.TXT

"""
This chatbot is a tongue-in-cheek take on the average teen
anime junky that frequents YahooMessenger or MSNM.
All spelling mistakes and flawed grammar are intentional.
"""

from nltk.chat.util import Chat

reflections = {
    "am": "r",
    "was": "were",
    "i": "u",
    "i'd": "u'd",
    "i've": "u'v",
    "ive": "u'v",
    "i'll": "u'll",
    "my": "ur",
    "are": "am",
    "you're": "im",
    "you've": "ive",
    "you'll": "i'll",
    "your": "my",
    "yours": "mine",
    "you": "me",
    "u": "me",
    "ur": "my",
    "urs": "mine",
    "me": "u",
}

# Note: %1/2/etc are used without spaces prior as the chat bot seems
# to add a superfluous space when matching.

pairs = (
    (
        r"I\'m (.*)",
        (
            "ur%1?? that's so cool! kekekekeke ^_^ tell me more!",
            "ur%1? neat!! kekeke >_<",
        ),
    ),
    (
        r"(.*) don\'t you (.*)",
        (
            r"u think I can%2??! really?? kekeke \<_\<",
            "what do u mean%2??!",
            "i could if i wanted, don't you think!! kekeke",
        ),
    ),
    (r"ye[as] [iI] (.*)", ("u%1? cool!! how?", "how come u%1??", "u%1? so do i!!")),
    (
        r"do (you|u) (.*)\??",
        ("do i%2? only on tuesdays! kekeke *_*", "i dunno! do u%2??"),
    ),
    (
        r"(.*)\?",
        (
            "man u ask lots of questions!",
            "booooring! how old r u??",
            "boooooring!! ur not very fun",
        ),
    ),
    (
        r"(cos|because) (.*)",
        ("hee! i don't believe u! >_<", "nuh-uh! >_<", "ooooh i agree!"),
    ),
    (
        r"why can\'t [iI] (.*)",
        (
            "i dunno! y u askin me for!",
            "try harder, silly! hee! ^_^",
            "i dunno! but when i can't%1 i jump up and down!",
        ),
    ),
    (
        r"I can\'t (.*)",
        (
            "u can't what??! >_<",
            "that's ok! i can't%1 either! kekekekeke ^_^",
            "try harder, silly! hee! ^&^",
        ),
    ),
    (
        r"(.*) (like|love|watch) anime",
        (
            "omg i love anime!! do u like sailor moon??! ^&^",
            "anime yay! anime rocks sooooo much!",
            "oooh anime! i love anime more than anything!",
            "anime is the bestest evar! evangelion is the best!",
            "hee anime is the best! do you have ur fav??",
        ),
    ),
    (
        r"I (like|love|watch|play) (.*)",
        ("yay! %2 rocks!", "yay! %2 is neat!", "cool! do u like other stuff?? ^_^"),
    ),
    (
        r"anime sucks|(.*) (hate|detest) anime",
        (
            "ur a liar! i'm not gonna talk to u nemore if u h8 anime *;*",
            "no way! anime is the best ever!",
            "nuh-uh, anime is the best!",
        ),
    ),
    (
        r"(are|r) (you|u) (.*)",
        ("am i%1??! how come u ask that!", "maybe!  y shud i tell u?? kekeke >_>"),
    ),
    (
        r"what (.*)",
        ("hee u think im gonna tell u? .v.", "booooooooring! ask me somethin else!"),
    ),
    (r"how (.*)", ("not tellin!! kekekekekeke ^_^",)),
    (r"(hi|hello|hey) (.*)", ("hi!!! how r u!!",)),
    (
        r"quit",
        (
            "mom says i have to go eat dinner now :,( bye!!",
            "awww u have to go?? see u next time!!",
            "how to see u again soon! ^_^",
        ),
    ),
    (
        r"(.*)",
        (
            "ur funny! kekeke",
            "boooooring! talk about something else! tell me wat u like!",
            "do u like anime??",
            "do u watch anime? i like sailor moon! ^_^",
            "i wish i was a kitty!! kekekeke ^_^",
        ),
    ),
)

iesha_chatbot = Chat(pairs, reflections)


def iesha_chat():
    print("Iesha the TeenBoT\n---------")
    print("Talk to the program by typing in plain English, using normal upper-")
    print('and lower-case letters and punctuation.  Enter "quit" when done.')
    print("=" * 72)
    print("hi!! i'm iesha! who r u??!")

    iesha_chatbot.converse()


def demo():
    iesha_chat()


if __name__ == "__main__":
    demo()
