app.py

import os
import whisper
import gradio as gr
from groq import Groq
from gtts import gTTS

# ✅ Set API Key (Replace with your actual key)
os.environ["GROQ_API_KEY"] = "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"

# ✅ Load Whisper Model securely
model = whisper.load_model("small")

def speech_to_text(audio_path):
    """Convert speech from audio file to text using Whisper."""
    result = model.transcribe(audio_path)
    return result["text"]

def generate_text(prompt):
    """Generate AI response using Groq API."""
    client = Groq(api_key=os.environ.get("GROQ_API_KEY"))

    chat_completion = client.chat.completions.create(
        messages=[{"role": "user", "content": prompt}],
        model="llama-3.3-70b-versatile",
    )
    
    return chat_completion.choices[0].message.content

def text_to_speech(text):
    """Convert text response to speech using Google TTS."""
    tts = gTTS(text=text, lang="en")
    output_path = "output.mp3"
    tts.save(output_path)
    return output_path  # Return file path for Gradio

def chat_process(history, text_input, audio_path):
    """Main pipeline: Handles both Text and Speech inputs."""
    
    # Check if user provided text or voice input
    if audio_path:
        user_input = speech_to_text(audio_path)  # Convert audio to text
    elif text_input:
        user_input = text_input  # Use text input
    else:
        return history, None  # No input received

    # Generate response
    response_text = generate_text(user_input)
    
    # Convert response to speech
    tts_output = text_to_speech(response_text)
    
    # Append conversation history
    history.append({"role": "user", "content": user_input})
    history.append({"role": "assistant", "content": response_text})

    return history, tts_output

def reset_chat():
    return []

# ✅ Updated Gradio Chat UI
with gr.Blocks() as chat_ui:
    gr.Markdown("## 📝🎙️ Sujith's AI Assistant")
    
    chatbot = gr.Chatbot(label="Conversation", type="messages")  # Chat display
    with gr.Row():
        text_input = gr.Textbox(placeholder="Type your message here...", interactive=True)
        audio_input = gr.Audio(type="filepath", format="wav")  # ✅ Fixed Mic input
        submit_button = gr.Button("Submit")

    clear_button = gr.Button("Clear Chat")

    submit_button.click(chat_process, [chatbot, text_input, audio_input], [chatbot, gr.Audio(type="filepath")])
    clear_button.click(reset_chat, [], chatbot)

# ✅ Launch Gradio App
chat_ui.launch(share=True)