public/js/index.js


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(function() {
  var fetchExchangeRate, g;

  g = typeof exports !== "undefined" && exports !== null ? exports : this;

  $(function() {
    fetchExchangeRate('ask');
    fetchExchangeRate('bid');
    $('#username').blur(function() {
      return $.get("/" + ($(this).val()) + "/exists", {
        username: $(this).val()
      }, function(data) {
        if (data === "true") {
          $('#username').prev().css('color', 'red').html('Username (taken)');
          return g.preventSubmit = true;
        } else {
          $('#username').prev().css('color', 'black').html('Username');
          return g.preventSubmit = false;
        }
      });
    });
    return $('#signup').submit(function() {
      if (g.preventSubmit) {
        return false;
      }
      return true;
    });
  });

  fetchExchangeRate = function(type) {
    var commission;
    commission = 0.015;
    if (type === 'bid') {
      commission *= -1;
    }
    return $.ajax({
      url: "/ticker?symbol=virtexCAD&type=" + type + "&amount=100",
      success: function(exchange) {
        if (exchange == null) {
          exchange = '??';
        }
        exchange = exchange - exchange * commission;
        return $("#" + type).html(exchange.toFixed(2));
      },
      error: function() {
        return $("#" + type).html('??');
      }
    });
  };

}).call(this);