// Generated by CoffeeScript 1.10.0
(function() {
  var END, MARGIN, MARGIN_BOTTOM, MARGIN_LEFT, START, STEP, chart, chart_height, chart_width, forum, height, keyword, line_generator, redraw, svg, width, x, y;

  MARGIN = 20;

  MARGIN_LEFT = 20;

  MARGIN_BOTTOM = 40;

  keyword = 'cocaine';

  forum = 'drugsforum';

  START = 946598400;

  END = 1450310400;

  STEP = 604800;

  svg = d3.select('svg');

  width = svg.node().getBoundingClientRect().width;

  height = svg.node().getBoundingClientRect().height;

  chart_width = width - 2 * MARGIN - MARGIN_LEFT;

  chart_height = height - 2 * MARGIN - MARGIN_BOTTOM;

  chart = svg.append('g').attr({
    transform: "translate(" + (MARGIN + MARGIN_LEFT) + " " + MARGIN + ")"
  });

  x = d3.time.scale().range([0, chart_width]);

  y = d3.scale.linear().range([chart_height, 0]);

  line_generator = d3_shape.area().x(function(d) {
    return x(d.date);
  }).y1(function(d) {
    return y(d.value);
  }).y0(function(d) {
    return y(0);
  }).curve(d3_shape.stepAfter);

  redraw = function() {
    d3.select('body').classed('wait', true);
    return d3.json("http://wafi.iit.cnr.it/cas-scraper2/api/timeseries/getTermTs.php?db=" + forum + "&term=" + keyword + "&start=" + START + "&end=" + END + "&step=" + STEP, function(result) {
      var data, end, index, start, xAxis, yAxis;
      d3.select('body').classed('wait', false);
      start = new Date(START * 1000);
      end = new Date(END * 1000 + (STEP * 1000));
      index = {};
      result.data.forEach(function(d) {
        d.date = 1000 * d.date;
        return index[d.date] = d;
      });
      data = d3.range(+start, +end, STEP * 1000).map(function(k) {
        if (k in index) {
          return index[k];
        } else {
          return {
            date: new Date(k),
            value: 0
          };
        }
      });
      data.forEach(function(d) {
        return d.date = new Date(d.date);
      });
      x.domain([start, end]);
      y.domain([
        0, d3.max(data, function(d) {
          return d.value;
        })
      ]);
      data.push({
        date: end,
        value: null
      });
      xAxis = d3.svg.axis().orient("bottom").ticks(d3.time.year, 1).scale(x);
      yAxis = d3.svg.axis().orient("left").scale(y);
      chart.selectAll('*').remove();
      chart.append("g").attr("class", "xaxis").attr("transform", "translate(0," + (chart_height + 0.5) + ")").call(xAxis);
      chart.append("g").attr("class", "yaxis").call(yAxis);
      return chart.append('path').datum(data).attr({
        "class": 'area',
        d: line_generator,
        fill: 'orange'
      });
    });
  };

  d3.select("#keyword").node().value = keyword;

  d3.select("#keyword").on('keyup', function() {
    if (d3.event.keyCode === 13) {
      keyword = this.value.replace(/ and /gi, "%2BAND%2B").replace(/ or /gi, "%2BOR%2B").replace(/-/g, "%2D").replace(/ /g, "%2B");
      return redraw();
    }
  });

  d3.select("#forum_ctrl").on("change", function() {
    forum = this.options[this.selectedIndex].value;
    return redraw();
  });

  redraw();

}).call(this);