import path from 'node:path';
import fs from 'node:fs/promises';
import {spawn} from 'node:child_process';
import {clean} from './seguridad.mjs';
function execute(cmd,args,timeoutMs) {
 return new Promise((resolve,reject)=>{
  let ended=false;
  const p=spawn(cmd,args,{windowsHide:true,stdio:['ignore','pipe','pipe']});
  let detail='';
  p.stderr.on('data',c=>detail+=String(c).slice(0,1800));
  p.stdout.on('data',c=>detail+=String(c).slice(0,500));
  const timer=setTimeout(()=>{if(!ended){p.kill();reject(new Error(`Tiempo agotado (${cmd})`));}},timeoutMs);
  p.once('error',e=>{if(!ended){ended=true;clearTimeout(timer);reject(e);}});
  p.once('close',code=>{if(!ended){ended=true;clearTimeout(timer);code===0?resolve():reject(new Error(`Error ${code} al ejecutar ${cmd}: ${detail.slice(-1500)}`));}});
 });
}
export async function sintetizarYReproducir({config,texto}) {
 if(!config.piper.enabled){console.log('[VOZ DESACTIVADA]',texto);return;}
 if(process.platform!=='win32') throw new Error('El reproductor SoundPlayer configurado requiere Windows. Usa --demo fuera de Windows.');
 const python=path.resolve(config.piper.pythonPath);
 const dir=path.resolve(config.piper.voiceDir);
 const model=path.join(dir,config.piper.voice+'.onnx');
 await fs.access(python);await fs.access(model);
 const output=path.resolve('data/audio',`respuesta_${Date.now()}.wav`);
 await fs.mkdir(path.dirname(output),{recursive:true});
 const speech=clean(texto,config.behavior.maxSpeechChars);
 try {
  await execute(python,['-m','piper','--data-dir',dir,'-m',config.piper.voice,'-f',output,'--',speech],config.piper.timeoutMs);
  if(config.piper.playAudio){
   // SoundPlayer.PlaySync reproduce WAV en el dispositivo de audio predeterminado de Windows.
   const escaped=output.replace(/'/g,"''");
   await execute('powershell.exe',['-NoProfile','-NonInteractive','-Command',`$player = New-Object System.Media.SoundPlayer '${escaped}'; $player.PlaySync(); $player.Dispose()`],config.piper.timeoutMs);
  }
 } finally {await fs.unlink(output).catch(()=>{});}
}