var plotly = require('plotly')('workshop', 'v6w5xlbx9j');
var five = require("johnny-five");
var board = new five.Board();

var data = [{x:[], y:[], stream:{token:'25tm9197rz', maxpoints:200}},
            {x:[], y:[], stream:{token:'unbi52ww8a', maxpoints:200}}];
var layout = {fileopt : "overwrite", filename : "uv sensing nodey arduino!"};

board.on("ready", function() {

  // create a new Analog Sensor sensor object
  var analog_light_sensor = new five.Sensor({
    pin: "A0",
    freq: 1000 // get reading every 1000ms
  });

  // initialize the plotly graph
  plotly.plot(data,layout,function (err, res) {
    if (err) console.log(err);
    console.log(res);
    //once it's initialized, create a plotly stream
    //to pipe your data!
    var stream = plotly.stream('25tm9197rz', function (err, res) {
      if (err) console.log(err);
      console.log(res);
    });

    var stream_2 = plotly.stream('unbi52ww8a', function (err, res) {
      if (err) console.log(err);
      console.log(res);
    });

    // this gets called each time there is a new sensor reading
    analog_light_sensor.on("data", function() {
      var rawValue = this.value;
      console.log('raw : '+rawValue);

      var data = {
        x : getDateString(),
        y : rawValue
      };
      console.log(data);
      // write the data to the plotly stream
      RawToLux(rawValue, stream_2);
      stream.write(JSON.stringify(data)+'\n');
    });
  });
});

// function that takes rawInput and converts it to lux
// then streams it to plotly
function RawToLux(raw, stream_2) {
  var rawRange = 1024; // 3.3v
  var logRange = 5.0; // 3.3v = 10^5 lux
  var logLux = raw * logRange / rawRange;
  var data = {
    x : getDateString(),
    y : Math.pow(10, logLux)
  };
  console.log(data);
  stream_2.write(JSON.stringify(data)+'\n');
}

// little helper function to get a nicely formatted date string
function getDateString () {
  var time = new Date();
  // 14400000 is (GMT-4 Montreal)
  // for your timezone just multiply +/-GMT by 3600000
  var datestr = new Date(time - 14400000).toISOString().replace(/T/, ' ').replace(/Z/, '');
  return datestr;
}