from gtts import gTTS
import os
import tempfile
import playsound


def summarize_for_voice(text, max_chars=350):
    """
    Resume texto largo para lectura por voz.
    Solo toma la primera parte para evitar audios muy extensos.
    """
    if not text:
        return ""

    text = str(text).strip()

    if len(text) <= max_chars:
        return text

    summary = text[:max_chars]

    # cortar en última oración
    last_dot = summary.rfind(".")
    if last_dot != -1:
        summary = summary[:last_dot + 1]

    return summary + " Resumen finalizado."
    

def speak(text):
    try:
        if not text:
            return

        voice_text = summarize_for_voice(text)

        tts = gTTS(
            text=voice_text,
            lang="es",
            slow=False
        )

        temp_path = tempfile.mktemp(suffix=".mp3")

        tts.save(temp_path)

        playsound.playsound(temp_path)

        if os.path.exists(temp_path):
            os.remove(temp_path)

    except Exception as e:
        print("Error en speak:", e)