// Vraie console série (étape 9) : se branche sur le proxy WebSocket Go, qui
// relaie nova-serialproxy. Contrairement à paillasse-terminal.js (shell
// simulé pour la vitrine), ceci parle à une VM réelle.
(function () {
  var THEME = {
    background: '#13233A', foreground: '#E8EDF5', cursor: '#FFD23F', cursorAccent: '#13233A',
    selectionBackground: '#2B4A73', black: '#0D192B', red: '#FF7A66', green: '#7CF2C0', yellow: '#FFD23F',
    blue: '#8DB4FF', magenta: '#FF6FB5', cyan: '#7CE3F2', white: '#E8EDF5',
    brightBlack: '#6B7F99', brightRed: '#FF9A8A', brightGreen: '#7CF2C0', brightYellow: '#FFD23F',
    brightBlue: '#A9C6FF', brightMagenta: '#FF8FC6', brightCyan: '#9CEBF7', brightWhite: '#FFFFFF'
  };

  function mount(el, o) {
    o = o || {};
    var lectureSeule = !!o.lectureSeule;

    var term = new window.Terminal({
      theme: THEME, fontFamily: '"IBM Plex Mono", ui-monospace, monospace', fontSize: o.fontSize || 14,
      lineHeight: 1.25, cursorBlink: !lectureSeule, cursorStyle: 'block', scrollback: 2000,
      disableStdin: lectureSeule
    });
    var fit = window.FitAddon ? new window.FitAddon.FitAddon() : null;
    if (fit) term.loadAddon(fit);
    term.open(el);
    var fitNow = function () { try { fit && fit.fit(); } catch (e) {} };
    var raf, doFit = function () { cancelAnimationFrame(raf); raf = requestAnimationFrame(fitNow); };
    fitNow(); window.addEventListener('resize', doFit);
    if (window.ResizeObserver) new ResizeObserver(doFit).observe(el);

    term.write('\x1b[2mConnexion à la console…\x1b[0m\r\n');

    var protocole = location.protocol === 'https:' ? 'wss://' : 'ws://';
    var ws = new WebSocket(protocole + location.host + '/console/' + o.jeton);
    ws.binaryType = 'arraybuffer';

    ws.onopen = function () { term.write('\x1b[2mConnecté.\x1b[0m\r\n'); };
    ws.onmessage = function (evenement) {
      if (evenement.data instanceof ArrayBuffer) {
        term.write(new Uint8Array(evenement.data));
      } else {
        term.write(evenement.data);
      }
    };
    ws.onclose = function () { term.write('\r\n\x1b[2mConnexion fermée.\x1b[0m\r\n'); };
    ws.onerror = function () { term.write('\r\n\x1b[31mErreur de connexion à la console.\x1b[0m\r\n'); };

    if (!lectureSeule) {
      term.onData(function (donnees) {
        if (ws.readyState === WebSocket.OPEN) ws.send(donnees);
      });
    }

    return { term: term, ws: ws };
  }

  window.SyllabusConsoleReelle = { mount: function (el, o) {
    var go = function () { mount(el, o); };
    (document.fonts && document.fonts.ready ? document.fonts.ready : Promise.resolve()).then(go);
  } };
})();