# tts_module.py
import asyncio
import edge_tts
import tempfile

async def get_voices():
    voices = await edge_tts.list_voices()
    return {f"{v['ShortName']} - {v['Locale']} ({v['Gender']})": v['ShortName'] for v in voices}

async def text_to_speech(text, voice, rate=0, pitch=0):
    if not text.strip():
        raise ValueError("El texto no puede estar vacío.")
    if not voice:
        raise ValueError("Debes seleccionar una voz.")

    voice_short_name = voice.split(" - ")[0]
    rate_str = f"{rate:+d}%"
    pitch_str = f"{pitch:+d}Hz"
    communicate = edge_tts.Communicate(text, voice_short_name, rate=rate_str, pitch=pitch_str)
    with tempfile.NamedTemporaryFile(delete=False, suffix=".mp3") as tmp_file:
        await communicate.save(tmp_file.name)
    return tmp_file.name