sonarqube/plugins/sonar-core-plugin/src/main/resources/org/sonar/plugins/core/widgets/timeline.html.erb

<%
  # Retrieve widget settings
  metric_data_map = {}
  metric_name_map = {}
  (1..3).each do |index|
    metric=widget_properties["metric#{index}"]
    if metric
      metric_data_map[metric.id] = []
      metric_name_map[metric.id] = metric.short_name
    end
  end
  if metric_data_map.empty?
    # No metric has been selected, it's the first time the widget is displayed: 'ncloc' is the default metric
    ncloc = Metric.find(:first, :conditions => "name = 'ncloc'")
    metric_data_map[ncloc.id] = []
    metric_name_map[ncloc.id] = message('metric.ncloc.name')
  end
  chartHeight = widget_properties["chartHeight"].to_i == 0 ? "null" : widget_properties["chartHeight"]
  
  # Retrieve metric trend information
  options = {}
  from_date = dashboard_configuration.from_datetime
  if from_date
    options[:from] = from_date
  end
  metric_count_per_snapshot_id = {}
  TrendsChart.time_machine_measures(@resource, metric_data_map.keys, options).each()  do |trend_item|
    sid = trend_item["sid"]
    if metric_count_per_snapshot_id[sid]
      metric_count_per_snapshot_id[sid] += 1
    else
      metric_count_per_snapshot_id[sid] = 1
    end
    metric_data_map[trend_item["metric_id"].to_i] << {:date => trend_item["created_at"], :value => trend_item["value"], :sid => trend_item["sid"]}
  end

  # Create JS structures to print out in the HTML page 
  js_data = "["
  js_snapshots = "["
  js_metrics = "["
  total_number_of_metrics = metric_name_map.keys.size()
  metric_data_map.keys.each_with_index() do |metric_id, index|
    unless metric_data_map[metric_id].empty?
      js_metrics += "\"" + metric_name_map[metric_id] + "\","
      js_data += "["
      metric_data_map[metric_id].each() do |metric_data|
        # for every metric value, we need to check that the corresponding snapshot has values for each metric (if not, Protovis won't be able to display)
        if metric_count_per_snapshot_id[metric_data[:sid]]==total_number_of_metrics
          m_date = Time.parse(metric_data[:date])
          js_data += "{x:d("
          js_data += m_date.year.to_s
          js_data += ","
          # Need to decrease by 1 the month as the JS Date object start months at 0 (= January)
          js_data += (m_date.month - 1).to_s
          js_data += ","
          js_data += m_date.day.to_s
          js_data += ","
          js_data += m_date.hour.to_s
          js_data += ","
          js_data += m_date.min.to_s
          js_data += ","
          js_data += m_date.sec.to_s
          js_data += "),y:" 
          js_data += sprintf( "%0.02f", metric_data[:value])
          js_data +=  "},"
          if index == 0
            # we fill the js_snapshots array (no need to do this more than once)
            js_snapshots += "{sid:"
            js_snapshots += metric_data[:sid].to_s
            js_snapshots += ",d:\""
            js_snapshots += human_short_date m_date
            js_snapshots += "\"},"
          end
        end
      end
      js_data = js_data.chomp(',') + "],"
    end
  end
  js_data = js_data.chomp(',') + "]"
  js_snapshots = js_snapshots.chomp(',') + "]"
  js_metrics = js_metrics.chomp(',') + "]"
  
  # Prepare also event structure if required
  unless widget_properties["hideEvents"]
    events = {}
    unless from_date
      # find the oldest date
      metric_data_map.values.each() do |metric_data_array|
        first_date = Time.parse(metric_data_array[0][:date])
        from_date = first_date if !from_date || from_date > first_date  
      end
    end
    Event.find(:all, :conditions => ["resource_id=? AND event_date>=?", @resource.id, from_date], :order => 'event_date').each() do |event|
      if events[event.event_date]
        events[event.event_date] << event
      else
        date_entry = [event]
        events[event.event_date] = date_entry
      end
    end
    js_events = "["
    events.keys().sort.each() do |e_date|
      e_details = events[e_date]
      js_events += "{sid:"
      js_events += e_details[0].snapshot_id.to_s
      js_events += ",d:d("
      js_events += e_date.year.to_s
      js_events += ","
      # Need to decrease by 1 the month as the JS Date object start months at 0 (= January)
      js_events += (e_date.month - 1).to_s
      js_events += ","
      js_events += e_date.day.to_s
      js_events += ","
      js_events += e_date.hour.to_s
      js_events += ","
      js_events += e_date.min.to_s
      js_events += ","
      js_events += e_date.sec.to_s
      js_events += "),l:["
      e_details.each() do |e|
        js_events += "{n:\""
        js_events += e.name
        js_events += "\"},"
      end 
      js_events = js_events.chomp(',') + "]},"
    end
    js_events = js_events.chomp(',') + "]"
  end
    
%>

<% if widget_properties["chartTitle"] %>
<h3 style="text-align: center; margin-bottom: 10px"><%= h(widget_properties["chartTitle"]) -%></h3>
<% end %>


<% if metric_data_map.values[0].size == 1 %>

	<span style="color: #777777; font-size: 93%; font-style:italic"><%= message('widget.timeline.timeline_not_displayed') -%></span>

<% else %>

	<div id="timeline-chart-<%= widget.id -%>"></div>
	<script type="text/javascript+protovis">
	  function d(y,m,d,h,min,s) {
	    return new Date(y,m,d,h,min,s);
	  }
	  var data = <%= js_data -%>;
	  var snapshots = <%= js_snapshots -%>;
	  var metrics = <%= js_metrics -%>;
	  var events = <%= js_events ? js_events : "null" -%>;
	  var timeline = new SonarWidgets.Timeline('timeline-chart-<%= widget.id -%>')
	  						.height(<%= chartHeight -%>)
	  						.data(data)
	  						.snapshots(snapshots)
	  						.metrics(metrics)
	  						.events(events);
	  timeline.render();
	
	</script>

<% end %>