Live location sharing - set replaces relation when stopping beacon (#8266)

* set replaces relation on stopping beacon

Signed-off-by: Kerry Archibald <kerrya@element.io>

* update tests for stopBeacon

Signed-off-by: Kerry Archibald <kerrya@element.io>

src/stores/OwnBeaconStore.ts

@@ -20,6 +20,7 @@ import {
     BeaconIdentifier,
     BeaconEvent,
     MatrixEvent,
+    RelationType,
     Room,
     RoomMember,
     RoomState,
@@ -447,11 +448,20 @@ export class OwnBeaconStore extends AsyncStoreWithClient<OwnBeaconStoreState> {
             ...update,
         };
 
-        const updateContent = makeBeaconInfoContent(timeout,
+        const newContent = makeBeaconInfoContent(timeout,
             live,
             description,
             assetType,
-            timestamp);
+            timestamp,
+        );
+        const updateContent = {
+            ...newContent,
+            "m.new_content": newContent,
+            "m.relates_to": {
+                "rel_type": RelationType.Replace,
+                "event_id": beacon.beaconInfoId,
+            },
+        };
 
         await this.matrixClient.unstable_setLiveBeacon(beacon.roomId, updateContent);
     };

test/stores/OwnBeaconStore-test.ts

@@ -20,6 +20,7 @@ import {
     BeaconEvent,
     getBeaconInfoIdentifier,
     MatrixEvent,
+    RelationType,
     RoomStateEvent,
     RoomMember,
 } from "matrix-js-sdk/src/matrix";
@@ -472,6 +473,14 @@ describe('OwnBeaconStore', () => {
             const expectedUpdateContent = {
                 ...prevEventContent,
                 live: false,
+                ["m.new_content"]: {
+                    ...prevEventContent,
+                    live: false,
+                },
+                ["m.relates_to"]: {
+                    event_id: alicesRoom1BeaconInfo.getId(),
+                    rel_type: RelationType.Replace,
+                },
             };
             expect(mockClient.unstable_setLiveBeacon).toHaveBeenCalledWith(
                 room1Id,
@@ -641,6 +650,14 @@ describe('OwnBeaconStore', () => {
             const expectedUpdateContent = {
                 ...prevEventContent,
                 live: false,
+                ["m.new_content"]: {
+                    ...prevEventContent,
+                    live: false,
+                },
+                ["m.relates_to"]: {
+                    event_id: alicesRoom1BeaconInfo.getId(),
+                    rel_type: RelationType.Replace,
+                },
             };
             expect(mockClient.unstable_setLiveBeacon).toHaveBeenCalledWith(
                 room1Id,
@@ -666,6 +683,14 @@ describe('OwnBeaconStore', () => {
             const expectedUpdateContent = {
                 ...prevEventContent,
                 live: false,
+                ["m.new_content"]: {
+                    ...prevEventContent,
+                    live: false,
+                },
+                ["m.relates_to"]: {
+                    event_id: alicesRoom1BeaconInfo.getId(),
+                    rel_type: RelationType.Replace,
+                },
             };
             expect(mockClient.unstable_setLiveBeacon).toHaveBeenCalledWith(
                 room1Id,