balath.github.io/index.html at master · balath/balath.github.io · GitHub

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<!DOCTYPE html>
<html lang="es">
<head>
	<meta charset="UTF-8"/>
	<meta name="viewport" content="width=device-width, initial-scale=1"/>
	<title>Bach-machine</title>
	<link href="styles/style.css" rel="stylesheet" type="text/css">
	<script src="https://cdn.jsdelivr.net/combine/npm/tone@14.7.58,npm/@magenta/music@1.23.1/es6/core.js,npm/focus-visible@5,npm/html-midi-player@1.4.0"></script>
</head>

<body>

	<div class="content">

		<div class="title">
			<h1>Bach-machine</h1>
			<p>Su generador inteligente de corales</p>
		</div>
		<div id="home-msg" align="center">
			<br>
			  <label for="tonos">Tono:</label>
			  <select class="select" id="tonos">
				<option aria-label="do bemol" value="ces">Do♭</option>
				<option aria-label="do" value="c" selected>Do</option>
				<option aria-label="do sostenido" value="cis">Do♯</option>
				<option aria-label="re bemol" value="des">Re♭</option>
				<option aria-label="re" value="d">Re</option>
				<option aria-label="re sostenido" value="dis">Re♯</option>
				<option aria-label="mi bemol" value="ees">Mi♭</option>
				<option aria-label="mi" value="e">Mi</option>
				<option aria-label="fa" value="f">Fa</option>
				<option aria-label="fa sostenido" value="fis">Fa♯</option>
				<option aria-label="sol bemol" value="ges">Sol♭</option>
				<option aria-label="sol" value="g">Sol</option>
				<option aria-label="sol sostenido" value="gis">Sol♯</option>
				<option aria-label="la bemol" value="aes">La♭</option>
				<option aria-label="la" value="a">La</option>
				<option aria-label="la sostenido" value="ais">La♯</option>
				<option aria-label="si bemol" value="bes">Si♭</option>
				<option aria-label="si" value="b">Si</option>
			  </select>
			  <label for="modo">Modo:</label>
			  <select class="select" id="modo">
				<option value="major" selected>Mayor</option>
				<option value="minor">menor</option>
			  </select>
			  <br><br>
			  <input class="select" type="button" value="Generar" onclick="generate()">
			<br>
		</div>
		<div class="flex-content" id="loading"></div>
		<div class="flex-content" id="cont"></div>
	</div>
<script>
function showLoading() {
    document.getElementById('loading').innerHTML = `<img width="50px" src="files/bach.gif" alt="Cargando...">`;
document.getElementById('loading').style.display = 'flex';
}

function hideLoading() {
    document.getElementById('loading').innerHTML = ``
    document.getElementById('loading').style.display = 'none';
}
function generate() {
    const midiPlayer = document.querySelector("div.midi-button midi-player")
    if (midiPlayer) { midiPlayer.player.stop(); }
    document.getElementById('cont').innerHTML = ``
    showLoading();
    const host = `https://bach-machine-02a43fd154c6.herokuapp.com`
    const key = document.getElementById('tonos').value;
    const mode = document.getElementById('modo').value;
    const url = `${host}/choral/${key}/${mode}`;

    fetch(url, {
	    method: 'GET',
	    headers: {
		'Content-Type': 'application/json',
		'Access-Control-Allow-Origin': '*'
	    },
	    mode: 'cors'
    })
    .then(response => {
	if (!response.ok) {
	throw new Error(`Error: ${response.statusText} (${response.status})`);
	}
	return response.text();
    })
    .then(text => {
	try {
	  const data = JSON.parse(text);
	  const pdfId = data.pdf;
	  const midiId = data.midi;

	  const pdfUrl = `${host}/pdf/${pdfId}`;
	  const midiUrl = `${host}/midi/${midiId}`;
	  const midiPlayer = `<div class="midi-button">
			<midi-player
			  sound-font="https://storage.googleapis.com/magentadata/js/soundfonts/sgm_plus"
			  src="${midiUrl}">
			</midi-player>
   			<a  id="downloadLink" href="#" download="choral${midiId}.mid"><img alt="Midi file" src="files/audioDownload52.png"></a>
			  </div>`;
	  const pdfIframe = `<iframe src="${pdfUrl}" class="pdf-iframe"></iframe>`;
	  fetch(midiUrl)
	    .then(response => response.blob())
	    .then(blob => {
  	      // Crea un URL para el Blob y lo asigna al enlace de descarga
	      const url = URL.createObjectURL(blob);
	      const downloadLink = document.getElementById("downloadLink");
	      downloadLink.href = url;
	  })
	    .catch(error => {
  	      console.error("Error al descargar el archivo:", error);
	  });
	  hideLoading();
	  document.getElementById('cont').innerHTML = `${midiPlayer}${pdfIframe}`;

	} catch (error) {
	    throw new Error(`Error parsing JSON: ${error.message}`);
	}
    })
    .catch(error => {
	  hideLoading();
	  document.getElementById('cont').innerHTML = `<div><img width="50px" alt="Bach" src="files/bach.png"></div><div>${error.message}</div>`;
    });
}
</script>
<br><br>
</body>

<footer>
  <a href="mailto:sergio-flor@outlook.es"><img alt="Mail" src="files/mail32.png"></a>
  <a href="https://github.com/balath/pfg"><img alt="Github Repo" src="files/github32.png"></a>
</footer>

</html>