import numpy as np
import streamlit as st
import os
from dotenv import load_dotenv
import requests

# Load environment variables
load_dotenv()

# Hugging Face API URL and token
HUGGINGFACE_API_URL = "https://api-inference.huggingface.co/models/joermd/llma-speedy"
HUGGINGFACE_API_TOKEN = os.environ.get('HUGGINGFACEHUB_API_TOKEN')

# Random dog images for error messages
random_dog = [
    "0f476473-2d8b-415e-b944-483768418a95.jpg",
    "1bd75c81-f1d7-4e55-9310-a27595fa8762.jpg",
    # Add more images as needed
]

def reset_conversation():
    '''Resets conversation'''
    st.session_state.conversation = []
    st.session_state.messages = []
    return None

# Create sidebar controls
temp_values = st.sidebar.slider('Select a temperature value', 0.0, 1.0, 0.5)
max_token_value = st.sidebar.slider('Select a max_token value', 1000, 9000, 5000)
st.sidebar.button('Reset Chat', on_click=reset_conversation)

# Set the model and display its name
model_name = "joermd/llma-speedy"
st.sidebar.write(f"You're now chatting with **{model_name}**")
st.sidebar.markdown("*Generated content may be inaccurate or false.*")

# Initialize chat history
if "messages" not in st.session_state:
    st.session_state.messages = []

# Display chat messages from history on app rerun
for message in st.session_state.messages:
    with st.chat_message(message["role"]):
        st.markdown(message["content"])

# Accept user input
if prompt := st.chat_input(f"Hi, I'm {model_name}, ask me a question"):
    with st.chat_message("user"):
        st.markdown(prompt)
    st.session_state.messages.append({"role": "user", "content": prompt})

    # Display assistant response
    with st.chat_message("assistant"):
        try:
            headers = {"Authorization": f"Bearer {HUGGINGFACE_API_TOKEN}"}
            payload = {
                "inputs": prompt,
                "parameters": {"temperature": temp_values, "max_new_tokens": max_token_value}
            }
            response = requests.post(HUGGINGFACE_API_URL, headers=headers, json=payload)

            if response.status_code == 200:
                result = response.json()
                assistant_response = result.get("generated_text", "No response generated.")
            else:
                assistant_response = "Error: Unable to reach the model."
                st.write(f"Status Code: {response.status_code}")
                
        except Exception as e:
            assistant_response = "😵‍💫 Connection issue! Try again later. Here's a 🐶:"
            st.image(f'https://random.dog/{random_dog[np.random.randint(len(random_dog))]}')
            st.write("Error message:")
            st.write(e)

    st.markdown(assistant_response)
    st.session_state.messages.append({"role": "assistant", "content": assistant_response})