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# -*- coding: utf-8 -*-
"""nino bot
Automatically generated by Colab.
Original file is located at
https://colab.research.google.com/drive/1UgXple_p_R-0mq9p5vhOmFPo9cgdayJy
"""
import gradio as gr
from transformers import AutoModelForCausalLM, AutoTokenizer
# Load the pretrained DialoGPT model
model_name = "microsoft/DialoGPT-small"
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForCausalLM.from_pretrained(model_name)
# Hardcoded rule-based responses
rules = {
"hi": "Hello! How can I help you today?",
"hello": "Hi there! How can I assist you?",
"hey": "Hey! What can I do for you?",
"how are you": "I'm just a bot, but I'm doing great! 😊 How about you?",
"good morning": "Good morning! Hope you have a wonderful day!",
"good afternoon": "Good afternoon! How can I help you?",
"good evening": "Good evening! What can I do for you?",
"bye": "Goodbye! Have a nice day! 👋",
"thank you": "You're welcome! 😊",
"thanks": "No problem! Happy to help!",
"what is your name": "I'm your friendly chatbot assistant.",
"help": "Sure! Ask me anything or type 'bye' to exit.",
"what can you do": "I can answer simple questions and chat with you. Try saying hi!",
"tell me a joke": "Why did the computer show up at work late? It had a hard drive!",
"what time is it": "Sorry, I don't have a clock yet. But you can check your device's time!",
"where are you from": "I'm from the cloud, here to assist you anytime!",
"what is ai": "AI stands for Artificial Intelligence, which is intelligence demonstrated by machines.",
"who created you": "I was created by a talented developer using Python and machine learning!",
"how can i learn programming": "Start with basics like Python. There are many free tutorials online to get you started!",
"ok": "ok",
"who are you?": "I am nino",
"hi nino": "hi there",
}
def respond(user_input, history):
if not isinstance(history, list):
history = []
if not isinstance(user_input, str):
user_input = str(user_input)
user_input_clean = user_input.lower().strip()
if user_input_clean in rules:
bot_reply = rules[user_input_clean]
else:
prompt = ""
for user_msg, bot_msg in history:
if bot_msg is not None:
prompt += f"{user_msg} {tokenizer.eos_token}\n{bot_msg} {tokenizer.eos_token}\n"
else:
prompt += f"{user_msg} {tokenizer.eos_token}\n"
prompt += f"{user_input} {tokenizer.eos_token}\n"
inputs = tokenizer(prompt, return_tensors="pt")
outputs = model.generate(
**inputs,
max_new_tokens=100,
pad_token_id=tokenizer.eos_token_id,
do_sample=True,
temperature=0.7,
top_p=0.9,
)
generated_text = tokenizer.decode(outputs[0], skip_special_tokens=True)
bot_reply = generated_text[len(prompt):].strip()
if len(bot_reply) < 5 or bot_reply.lower() in ["", "idk", "i don't know", "huh"]:
bot_reply = "I'm not sure how to respond to that. Can you rephrase it?"
history.append((user_input, bot_reply))
return history, "", history
def save_chat(history):
try:
with open("/tmp/chat_history.txt", "w", encoding="utf-8") as f:
for user_msg, bot_msg in history:
if bot_msg is not None:
f.write(f"You: {user_msg}\nBot: {bot_msg}\n\n")
else:
f.write(f"You: {user_msg}\nBot: (No response)\n\n")
except Exception as e:
print("Error saving chat:", e)
def process_input(user_input, history):
try:
result = respond(user_input, history)
save_chat(result[0])
return result
except Exception as e:
error_message = f"Error: {str(e)}"
if not isinstance(history, list):
history = []
history.append((user_input, error_message))
return history, "", history
with gr.Blocks() as demo:
chatbot = gr.Chatbot()
msg = gr.Textbox(placeholder="Type your message here...", show_label=False)
state = gr.State([])
msg.submit(process_input, inputs=[msg, state], outputs=[chatbot, msg, state])
if __name__ == "__main__":
demo.launch()
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