services/tts_service.py

import requests
import uuid
from config import GROQ_API_KEY, GROQ_TTS_MODEL

def text_to_speech(text: str, voice: str, fmt: str):
    if not GROQ_API_KEY:
        raise RuntimeError("GROQ_API_KEY is not set in config")

    url = "https://api.groq.ai/openai/v1/audio/speech"

    headers = {
        "Authorization": f"Bearer {GROQ_API_KEY}",
        "Content-Type": "application/json"
    }

    payload = {
        "model": GROQ_TTS_MODEL,
        "voice": voice,
        "format": fmt,
        "input": text
    }

    output_file = f"audio_{uuid.uuid4()}.{fmt}"

    response = requests.post(url, headers=headers, json=payload)
    response.raise_for_status()

    with open(output_file, "wb") as f:
        f.write(response.content)

    return output_file