from flask import Flask, render_template, request, jsonify
from io import BytesIO
import base64
import subprocess
import os
import random
import string
import re

app = Flask(__name__)

def filter_text(text):
    filtered_text = re.sub(r'[^\w\s,.\(\):\u00C0-\u00FF]', '', text)
    filtered_text = filtered_text.replace('\n', ' ')
    filtered_text = filtered_text.replace('(', ',').replace(')', ',')
    return filtered_text

def convert_text_to_speech(parrafo, model):
    parrafo_filtrado = filter_text(parrafo)
    bundle_dir = os.path.abspath(os.path.dirname(__file__))
    print("Cargando carpeta Modelos desde:", bundle_dir)
    random_name = '.'.join(random.choices(string.ascii_letters + string.digits, k=8)) + '.wav'
    output_file = os.path.join(bundle_dir, random_name)
    piper_exe = '/app/piper'
    print("Ejecutando piper desde:", piper_exe)
    
    if os.path.isfile(piper_exe):
        comando = f'echo {parrafo_filtrado} | {piper_exe} -m {model} -f {output_file}'
        subprocess.run(comando, shell=True, check=True)
        return output_file
    else:
        return "El archivo piper no se encontró en el directorio correcto."

@app.route('/')
def index():
    model_folder = '.'
    bundle_dir = os.path.abspath(os.path.dirname(__file__))
    print("Cargando carpeta Modelos desde:", bundle_dir)
    model_options = [file for file in os.listdir(model_folder) if file.endswith('.onnx')]
    return render_template('index.html', model_options=model_options)

@app.route('/convert', methods=['POST'])
def convert_text():
    text = request.form['text']
    model = request.form['model']
    output_file = convert_text_to_speech(text, model)
    
    with open(output_file, 'rb') as audio_file:
        audio_content = audio_file.read()
        
    audio_base64 = base64.b64encode(audio_content).decode('utf-8')
    return jsonify({'audio_base64': audio_base64})

if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0', port=7860)