GeneralSettings: Enable support for nowDelay (#79703)

docs/sources/developers/kinds/core/dashboard/schema-reference.md

@@ -196,10 +196,11 @@ Time picker configuration
 It defines the default config for the time picker and the refresh picker for the specific dashboard.
 
 | Property            | Type     | Required | Default                               | Description                                                                                                                           |
-|---------------------|----------|----------|---------------------------------------|---------------------------------------------------------------------------------------------------|
+|---------------------|----------|----------|---------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------|
 | `hidden`            | boolean  | **Yes**  | `false`                               | Whether timepicker is visible or not.                                                                                                 |
 | `refresh_intervals` | string[] | **Yes**  | `[5s 10s 30s 1m 5m 15m 30m 1h 2h 1d]` | Interval options available in the refresh picker dropdown.                                                                            |
 | `time_options`      | string[] | **Yes**  | `[5m 15m 1h 6h 12h 24h 2d 7d 30d]`    | Selectable options available in the time picker dropdown. Has no effect on provisioned dashboard.                                     |
+| `nowDelay`          | string   | No       |                                       | Override the now time by entering a time delay. Use this option to accommodate known delays in data aggregation to avoid null values. |
 
 ### Panels
 

kinds/dashboard/dashboard_kind.cue

@@ -454,6 +454,8 @@ lineage: schemas: [{
 			refresh_intervals: [...string] | *["5s", "10s", "30s", "1m", "5m", "15m", "30m", "1h", "2h", "1d"]
 			// Selectable options available in the time picker dropdown. Has no effect on provisioned dashboard.
 			time_options: [...string] | *["5m", "15m", "1h", "6h", "12h", "24h", "2d", "7d", "30d"]
+			// Override the now time by entering a time delay. Use this option to accommodate known delays in data aggregation to avoid null values.
+			nowDelay?: string
 		} @cuetsy(kind="interface") @grafana(TSVeneer="type")
 
 		// 0 for no shared crosshair or tooltip (default).

packages/grafana-schema/src/raw/dashboard/x/dashboard_types.gen.ts

@@ -638,6 +638,10 @@ export interface TimePickerConfig {
    * Whether timepicker is visible or not.
    */
   hidden: boolean;
+  /**
+   * Override the now time by entering a time delay. Use this option to accommodate known delays in data aggregation to avoid null values.
+   */
+  nowDelay?: string;
   /**
    * Interval options available in the refresh picker dropdown.
    */

pkg/kinds/dashboard/dashboard_spec_gen.go

@@ -858,6 +858,9 @@ type TimePickerConfig struct {
 	// Whether timepicker is visible or not.
 	Hidden bool `json:"hidden"`
 
+	// Override the now time by entering a time delay. Use this option to accommodate known delays in data aggregation to avoid null values.
+	NowDelay *string `json:"nowDelay,omitempty"`
+
 	// Interval options available in the refresh picker dropdown.
 	RefreshIntervals []string `json:"refresh_intervals"`
 

public/app/features/dashboard-scene/serialization/transformSaveModelToScene.ts

@@ -251,6 +251,7 @@ export function createDashboardSceneFromDashboardModel(oldModel: DashboardModel)
       fiscalYearStartMonth: oldModel.fiscalYearStartMonth,
       timeZone: oldModel.timezone,
       weekStart: oldModel.weekStart,
+      UNSAFE_nowDelay: oldModel.timepicker?.nowDelay,
     }),
     $variables: variables,
     $behaviors: [

public/app/features/dashboard-scene/serialization/transformSceneToSaveModel.ts

@@ -127,6 +127,7 @@ export function transformSceneToSaveModel(scene: DashboardScene, isSnapshot = fa
       ...defaultTimePickerConfig,
       refresh_intervals,
       hidden: hideTimePicker,
+      nowDelay: timeRange.UNSAFE_nowDelay,
     },
     panels,
     annotations: {

public/app/features/dashboard-scene/settings/GeneralSettingsEditView.tsx

@@ -125,7 +125,11 @@ export class GeneralSettingsEditView
   };
 
   public onNowDelayChange = (value: string) => {
-    // TODO: Figure out how to store nowDelay in Dashboard Scene
+    const timeRange = this.getTimeRange();
+
+    timeRange?.setState({
+      UNSAFE_nowDelay: value,
+    });
   };
 
   public onHideTimePickerChange = (value: boolean) => {
@@ -146,7 +150,7 @@ export class GeneralSettingsEditView
     const { navModel, pageNav } = useDashboardEditPageNav(model.getDashboard(), model.getUrlKey());
     const { title, description, tags, meta, editable, overlay } = model.getDashboard().useState();
     const { sync: graphTooltip } = model.getCursorSync()?.useState() || {};
-    const { timeZone, weekStart } = model.getTimeRange().useState();
+    const { timeZone, weekStart, UNSAFE_nowDelay: nowDelay } = model.getTimeRange().useState();
     const { intervals } = model.getRefreshPicker()?.useState() || {};
     const { hideTimeControls } = model.getDashboardControls()?.useState() || {};
 
@@ -230,8 +234,7 @@ export class GeneralSettingsEditView
             onLiveNowChange={model.onLiveNowChange}
             refreshIntervals={intervals}
             timePickerHidden={hideTimeControls}
-            // TODO: Implement this in dashboard scene
-            // nowDelay={timepicker.nowDelay || ''}
+            nowDelay={nowDelay || ''}
             // TODO: Implement this in dashboard scene
             // liveNow={liveNow}
             liveNow={false}