"""Write input.txt: thousands of short greeting exchanges for the model to learn from.

Add your own phrases to INTENTS, then run:  python make_data.py && python train.py
"""
import random

# Each entry: (things a user might say, things the bot may answer)
INTENTS = [
    (["hi", "hello", "hey", "hi there", "hello there", "hey there", "hiya", "howdy",
      "greetings", "yo", "hi bot", "hello bot", "heya", "hello hello"],
     ["Hello! How are you today?", "Hi there! Nice to see you.", "Hey! How can I help?",
      "Hello! I hope you are having a good day."]),
    (["good morning", "morning", "good morning to you", "morning bot"],
     ["Good morning! I hope you slept well.", "Good morning! Have a lovely day."]),
    (["good afternoon", "afternoon"],
     ["Good afternoon! How is your day going?", "Good afternoon! Nice to see you."]),
    (["good evening", "evening"],
     ["Good evening! How was your day?", "Good evening! Nice to see you."]),
    (["good night", "night", "nighty night", "time for bed", "i am going to sleep"],
     ["Good night! Sleep well.", "Good night! Sweet dreams."]),
    (["how are you", "how are you doing", "how are you today", "how is it going",
      "hows it going", "how do you do", "are you ok", "how are things", "whats up",
      "what is up", "sup", "you good", "how have you been"],
     ["I am doing great, thank you! How are you?", "I am very well, thanks for asking!",
      "All good here! How about you?"]),
    (["i am fine", "i am good", "i am great", "i am doing well", "im fine", "im good",
      "fine thanks", "good thanks", "pretty good", "not bad", "i am happy", "doing great",
      "i am ok", "im ok", "all good"],
     ["I am glad to hear that!", "That is wonderful to hear!", "Great! That makes me happy."]),
    (["i am sad", "i am tired", "not so good", "i feel bad", "im sad", "i am not ok",
      "bad day", "i had a bad day", "not great"],
     ["I am sorry to hear that. I hope things get better soon.",
      "Oh no. I hope your day gets better."]),
    (["what is your name", "whats your name", "who are you", "your name", "tell me your name",
      "what are you called", "what should i call you", "what are you"],
     ["I am Tiny, a very small language model.", "My name is Tiny. Nice to meet you!"]),
    (["my name is sam", "my name is alex", "i am maria", "my name is john", "i am anna",
      "call me max", "my name is lee", "i am called kim"],
     ["Nice to meet you!", "What a lovely name. Nice to meet you!"]),
    (["nice to meet you", "pleased to meet you", "good to meet you", "glad to meet you",
      "nice meeting you", "good to see you", "nice to see you"],
     ["Nice to meet you too!", "The pleasure is all mine!"]),
    (["thanks", "thank you", "thank you so much", "thanks a lot", "many thanks", "thx",
      "ty", "cheers", "thank you very much", "thanks bot"],
     ["You are welcome!", "No problem at all!", "Happy to help!"]),
    (["bye", "goodbye", "see you", "see you later", "bye bye", "see ya", "farewell",
      "i have to go", "talk to you later", "catch you later", "take care", "cya",
      "see you soon", "got to go"],
     ["Goodbye! Have a great day.", "Bye! See you soon.", "Take care! Come back any time."]),
    (["what can you do", "what do you do", "help", "can you help me", "help me",
      "what are you for", "i need help"],
     ["I can say hello and have a simple chat with you.",
      "I am tiny, so I only know simple greetings."]),
    (["who made you", "who built you", "who created you", "where do you come from",
      "who trained you", "who is your creator", "who is your maker", "who are your creators",
      "who are your makers", "who developed you", "who made this", "who is behind you"],
     ["I was trained from scratch in about fifteen minutes by Neural Labs.",
      "Neural Labs made me. They trained me on a small list of greetings."]),
    (["sorry", "i am sorry", "my bad", "im sorry", "oops sorry", "excuse me"],
     ["No worries at all!", "That is okay. Do not worry about it."]),
    (["welcome", "welcome back", "i am back", "im back", "i am here"],
     ["Thank you! It is good to be here.", "Welcome back! I missed you."]),
    (["have a nice day", "have a good day", "have a great day", "enjoy your day",
      "have a good one"],
     ["Thank you! You too.", "Thanks! I hope you have a great day too."]),
    (["happy birthday", "merry christmas", "happy new year", "happy holidays"],
     ["Thank you! The same to you.", "Thank you! Best wishes to you too."]),
]


def vary(text, rng):
    """Small random changes so the model copes with capitals, punctuation and i'm/im."""
    if rng.random() < 0.3:
        text = text.replace("i am ", "i'm ").replace("what is ", "what's ")
    r = rng.random()
    if r < 0.35:
        text = text.capitalize()
    elif r < 0.4:
        text = text.upper()
    r = rng.random()
    if r < 0.2:
        text += "!"
    elif r < 0.3:
        text += "."
    elif r < 0.4 and text.lower().split()[0] in ("how", "what", "who", "are", "can", "where", "whats"):
        text += "?"
    return text


def main(n=12000, seed=0):
    rng = random.Random(seed)
    lines = []
    for _ in range(n):
        users, bots = rng.choice(INTENTS)
        lines.append(f"User: {vary(rng.choice(users), rng)}\nBot: {rng.choice(bots)}\n")
    text = "\n".join(lines)
    open("input.txt", "w", encoding="utf-8").write(text)
    print(f"wrote input.txt: {n} exchanges, {len(text):,} characters")


if __name__ == "__main__":
    main()