feat(observability-lib): can specify tooltip on timeseries panels and…

… enable by default (#982)

observability-lib/grafana/panels.go

@@ -88,6 +88,37 @@ func newTransform(options *TransformOptions) dashboard.DataTransformerConfig {
 	}
 }
 
+type ToolTipOptions struct {
+	Mode      common.TooltipDisplayMode
+	Sort      common.SortOrder
+	MaxWidth  *float64
+	MaxHeight *float64
+}
+
+func newToolTip(options *ToolTipOptions) *common.VizTooltipOptionsBuilder {
+	if options.Mode == "" {
+		options.Mode = common.TooltipDisplayModeSingle
+	}
+
+	if options.Sort == "" {
+		options.Sort = common.SortOrderNone
+	}
+
+	builder := common.NewVizTooltipOptionsBuilder().
+		Mode(options.Mode).
+		Sort(options.Sort)
+
+	if options.MaxWidth != nil {
+		builder.MaxWidth(*options.MaxWidth)
+	}
+
+	if options.MaxHeight != nil {
+		builder.MaxHeight(*options.MaxHeight)
+	}
+
+	return builder
+}
+
 type PanelOptions struct {
 	Datasource  string
 	Title       string
@@ -230,6 +261,7 @@ type TimeSeriesPanelOptions struct {
 	FillOpacity       float64
 	ScaleDistribution common.ScaleDistribution
 	LegendOptions     *LegendOptions
+	ToolTipOptions    *ToolTipOptions
 	ThresholdStyle    common.GraphThresholdsStyleMode
 }
 
@@ -244,6 +276,10 @@ func NewTimeSeriesPanel(options *TimeSeriesPanelOptions) *Panel {
 		options.LegendOptions = &LegendOptions{}
 	}
 
+	if options.ToolTipOptions == nil {
+		options.ToolTipOptions = &ToolTipOptions{}
+	}
+
 	newPanel := timeseries.NewPanelBuilder().
 		Datasource(datasourceRef(options.Datasource)).
 		Title(options.Title).
@@ -257,7 +293,8 @@ func NewTimeSeriesPanel(options *TimeSeriesPanelOptions) *Panel {
 		Legend(newLegend(options.LegendOptions)).
 		ScaleDistribution(common.NewScaleDistributionConfigBuilder().
 			Type(options.ScaleDistribution),
-		)
+		).
+		Tooltip(newToolTip(options.ToolTipOptions))
 
 	if options.Min != nil {
 		newPanel.Min(*options.Min)