From 327fc826c14fdcd703287e74b1e534b69a0cc407 Mon Sep 17 00:00:00 2001
From: Jesse Mazzella <ozyx@users.noreply.github.com>
Date: Wed, 28 Dec 2022 11:12:00 -0800
Subject: [PATCH] fix(imagery): Unblock 'latest' strategy requests for Related
 Telemetry in realtime mode (#6080)

* fix: use ephemeral timeContext for thumbnail metadata requests

* fix(TEMP): use `eval-source-map`

- **!!! REVERT THIS CHANGE BEFORE MERGE !!!**

* fix: only mutate if object supports mutation

* fix: pass identifier instead of whole domainObject

* fix: add start and end bounds to request

* Revert "fix(TEMP): use `eval-source-map`"

This reverts commit 7972d8c33ab621e8852d65743e2adf946e5c14fb.

* docs: add comments
---
 .../imagery/components/ImageryView.vue        |  2 +-
 .../RelatedTelemetry/RelatedTelemetry.js      | 27 +++++++++++++++++--
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/src/plugins/imagery/components/ImageryView.vue b/src/plugins/imagery/components/ImageryView.vue
index 4eb987cc73..8095898699 100644
--- a/src/plugins/imagery/components/ImageryView.vue
+++ b/src/plugins/imagery/components/ImageryView.vue
@@ -788,7 +788,7 @@ export default {
             }
         },
         persistVisibleLayers() {
-            if (this.domainObject.configuration) {
+            if (this.domainObject.configuration && this.openmct.objects.supportsMutation(this.domainObject.identifier)) {
                 this.openmct.objects.mutate(this.domainObject, 'configuration.layers', this.layers);
             }
 
diff --git a/src/plugins/imagery/components/RelatedTelemetry/RelatedTelemetry.js b/src/plugins/imagery/components/RelatedTelemetry/RelatedTelemetry.js
index f874d81299..f06091d395 100644
--- a/src/plugins/imagery/components/RelatedTelemetry/RelatedTelemetry.js
+++ b/src/plugins/imagery/components/RelatedTelemetry/RelatedTelemetry.js
@@ -28,6 +28,7 @@ function copyRelatedMetadata(metadata) {
     return copiedMetadata;
 }
 
+import IndependentTimeContext from "@/api/time/IndependentTimeContext";
 export default class RelatedTelemetry {
 
     constructor(openmct, domainObject, telemetryKeys) {
@@ -88,9 +89,31 @@ export default class RelatedTelemetry {
             this[key].historicalDomainObject = await this._openmct.objects.get(this[key].historical.telemetryObjectId);
 
             this[key].requestLatestFor = async (datum) => {
-                const options = {
+                // We need to create a throwaway time context and pass it along
+                // as a request option. We do this to "trick" the Time API
+                // into thinking we are in fixed time mode in order to bypass this logic:
+                // https://github.com/akhenry/openmct-yamcs/blob/1060d42ebe43bf346dac0f6a8068cb288ade4ba4/src/providers/historical-telemetry-provider.js#L59
+                // Context: https://github.com/akhenry/openmct-yamcs/pull/217
+                const ephemeralContext = new IndependentTimeContext(
+                    this._openmct,
+                    this._openmct.time,
+                    [this[key].historicalDomainObject]
+                );
+
+                // Stop following the global context, stop the clock,
+                // and set bounds.
+                ephemeralContext.resetContext();
+                const newBounds = {
                     start: this._openmct.time.bounds().start,
-                    end: this._parseTime(datum),
+                    end: this._parseTime(datum)
+                };
+                ephemeralContext.stopClock();
+                ephemeralContext.bounds(newBounds);
+
+                const options = {
+                    start: newBounds.start,
+                    end: newBounds.end,
+                    timeContext: ephemeralContext,
                     strategy: 'latest'
                 };
                 let results = await this._openmct.telemetry