chore: debounce handle action updates (#38396)

## Description
Debounced handleActionUpdate actions together with bufferedActions, this
has reduced the webworker scripting and LCP by about 25-30% on a windows
machine.


Fixes #`Issue Number`  
_or_  
Fixes `Issue URL`
> [!WARNING]  
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._

## Automation

/ok-to-test tags="@tag.All"

### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results  -->
> [!TIP]
> 🟢 🟢 🟢 All cypress tests have passed! 🎉 🎉 🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/12542044958>
> Commit: 834a437d377baf45cc9c187eedaff261b7de6155
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=12542044958&attempt=2"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.All`
> Spec:
> <hr>Mon, 30 Dec 2024 06:24:18 UTC
<!-- end of auto-generated comment: Cypress test results  -->


## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
	- Enhanced action data handling and evaluation mechanisms
	- Improved Redux action processing for more efficient updates

- **Refactor**
	- Streamlined saga logic for action data management
	- Updated type definitions to improve code clarity and type safety

- **Tests**
- Added comprehensive test cases for action data buffering and
consolidation

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

app/client/src/actions/pluginActionActions.ts

@@ -388,7 +388,7 @@ export const bindDataOnCanvas = (payload: {
   };
 };
 
-type actionDataPayload = {
+export type actionDataPayload = {
   entityName: string;
   dataPath: string;
   data: unknown;

app/client/src/ce/actions/evaluationActionsList.ts

@@ -108,6 +108,7 @@ export const EVALUATE_REDUX_ACTIONS = [
   ReduxActionTypes.BUFFERED_ACTION,
   // Generic
   ReduxActionTypes.TRIGGER_EVAL,
+  ReduxActionTypes.UPDATE_ACTION_DATA,
 ];
 // Topics used for datasource and query form evaluations
 export const FORM_EVALUATION_REDUX_ACTIONS = [

app/client/src/sagas/ActionExecution/PluginActionSaga.ts

@@ -9,7 +9,6 @@ import {
   takeLatest,
 } from "redux-saga/effects";
 import * as Sentry from "@sentry/react";
-import type { updateActionDataPayloadType } from "actions/pluginActionActions";
 import {
   clearActionResponse,
   executePageLoadActions,
@@ -104,7 +103,6 @@ import { EMPTY_RESPONSE } from "components/editorComponents/emptyResponse";
 import type { AppState } from "ee/reducers";
 import { DEFAULT_EXECUTE_ACTION_TIMEOUT_MS } from "ee/constants/ApiConstants";
 import { evaluateActionBindings } from "sagas/EvaluationsSaga";
-import { evalWorker } from "utils/workerInstances";
 import { isBlobUrl, parseBlobUrl } from "utils/AppsmithUtils";
 import { getType, Types } from "utils/TypeHelpers";
 import { matchPath } from "react-router";
@@ -152,7 +150,6 @@ import {
   getCurrentEnvironmentDetails,
   getCurrentEnvironmentName,
 } from "ee/selectors/environmentSelectors";
-import { EVAL_WORKER_ACTIONS } from "ee/workers/Evaluation/evalWorkerActions";
 import { getIsActionCreatedInApp } from "ee/utils/getIsActionCreatedInApp";
 import {
   endSpan,
@@ -1656,22 +1653,6 @@ function* softRefreshActionsSaga() {
   yield put({ type: ReduxActionTypes.SWITCH_ENVIRONMENT_SUCCESS });
 }
 
-function* handleUpdateActionData(
-  action: ReduxAction<updateActionDataPayloadType>,
-) {
-  const { actionDataPayload, parentSpan } = action.payload;
-
-  yield call(
-    evalWorker.request,
-    EVAL_WORKER_ACTIONS.UPDATE_ACTION_DATA,
-    actionDataPayload,
-  );
-
-  if (parentSpan) {
-    endSpan(parentSpan);
-  }
-}
-
 export function* watchPluginActionExecutionSagas() {
   yield all([
     takeLatest(ReduxActionTypes.RUN_ACTION_REQUEST, runActionSaga),
@@ -1685,6 +1666,5 @@ export function* watchPluginActionExecutionSagas() {
     ),
     takeLatest(ReduxActionTypes.PLUGIN_SOFT_REFRESH, softRefreshActionsSaga),
     takeEvery(ReduxActionTypes.EXECUTE_JS_UPDATES, makeUpdateJSCollection),
-    takeEvery(ReduxActionTypes.UPDATE_ACTION_DATA, handleUpdateActionData),
   ]);
 }

app/client/src/sagas/EvaluationsSaga.test.ts

@@ -26,6 +26,7 @@ import {
   getCurrentApplicationId,
   getCurrentPageId,
 } from "selectors/editorSelectors";
+import { updateActionData } from "actions/pluginActionActions";
 
 jest.mock("loglevel");
 
@@ -190,6 +191,9 @@ describe("evalQueueBuffer", () => {
     const bufferedAction = buffer.take();
 
     expect(bufferedAction).toEqual({
+      actionDataPayloadConsolidated: [],
+      hasBufferedAction: true,
+      hasDebouncedHandleUpdate: false,
       type: ReduxActionTypes.BUFFERED_ACTION,
       affectedJSObjects: defaultAffectedJSObjects,
       postEvalActions: [],
@@ -207,6 +211,9 @@ describe("evalQueueBuffer", () => {
     const bufferedAction = buffer.take();
 
     expect(bufferedAction).toEqual({
+      actionDataPayloadConsolidated: [],
+      hasBufferedAction: true,
+      hasDebouncedHandleUpdate: false,
       type: ReduxActionTypes.BUFFERED_ACTION,
       affectedJSObjects: { ids: ["1", "2"], isAllAffected: false },
       postEvalActions: [],
@@ -228,6 +235,9 @@ describe("evalQueueBuffer", () => {
     const bufferedAction = buffer.take();
 
     expect(bufferedAction).toEqual({
+      actionDataPayloadConsolidated: [],
+      hasBufferedAction: true,
+      hasDebouncedHandleUpdate: false,
       type: ReduxActionTypes.BUFFERED_ACTION,
       affectedJSObjects: { ids: [], isAllAffected: true },
       postEvalActions: [],
@@ -243,6 +253,9 @@ describe("evalQueueBuffer", () => {
     const bufferedAction = buffer.take();
 
     expect(bufferedAction).toEqual({
+      actionDataPayloadConsolidated: [],
+      hasBufferedAction: true,
+      hasDebouncedHandleUpdate: false,
       type: ReduxActionTypes.BUFFERED_ACTION,
       affectedJSObjects: { ids: ["1"], isAllAffected: false },
       postEvalActions: [],
@@ -255,9 +268,120 @@ describe("evalQueueBuffer", () => {
     const bufferedActionsWithDefaultAffectedJSObjects = buffer.take();
 
     expect(bufferedActionsWithDefaultAffectedJSObjects).toEqual({
+      actionDataPayloadConsolidated: [],
+      hasBufferedAction: true,
+      hasDebouncedHandleUpdate: false,
       type: ReduxActionTypes.BUFFERED_ACTION,
       affectedJSObjects: defaultAffectedJSObjects,
       postEvalActions: [],
     });
   });
+  test("should debounce UPDATE_ACTION_DATA actions together when the buffer is busy", () => {
+    const buffer = evalQueueBuffer();
+
+    buffer.put(
+      updateActionData([
+        {
+          entityName: "widget1",
+          dataPath: "data",
+          data: { a: 1 },
+          dataPathRef: "",
+        },
+      ]),
+    );
+    buffer.put(
+      updateActionData([
+        {
+          entityName: "widget2",
+          dataPath: "data",
+          data: { a: 2 },
+          dataPathRef: "",
+        },
+      ]),
+    );
+    const bufferedActionsWithDefaultAffectedJSObjects = buffer.take();
+
+    expect(bufferedActionsWithDefaultAffectedJSObjects).toEqual({
+      actionDataPayloadConsolidated: [
+        {
+          data: {
+            a: 1,
+          },
+          dataPath: "data",
+          dataPathRef: "",
+          entityName: "widget1",
+        },
+        {
+          data: {
+            a: 2,
+          },
+          dataPath: "data",
+          dataPathRef: "",
+          entityName: "widget2",
+        },
+      ],
+
+      hasBufferedAction: false,
+      hasDebouncedHandleUpdate: true,
+      type: ReduxActionTypes.BUFFERED_ACTION,
+      affectedJSObjects: defaultAffectedJSObjects,
+      postEvalActions: [],
+    });
+  });
+  test("should be able to debounce UPDATE_ACTION_DATA actions and BUFFERED_ACTION together when the buffer is busy", () => {
+    const buffer = evalQueueBuffer();
+
+    buffer.put(
+      updateActionData([
+        {
+          entityName: "widget1",
+          dataPath: "data",
+          data: { a: 1 },
+          dataPathRef: "",
+        },
+      ]),
+    );
+    buffer.put(
+      updateActionData([
+        {
+          entityName: "widget2",
+          dataPath: "data",
+          data: { a: 2 },
+          dataPathRef: "",
+        },
+      ]),
+    );
+
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    buffer.put(createJSCollectionSuccess({ id: "1" } as any));
+
+    const bufferedActionsWithDefaultAffectedJSObjects = buffer.take();
+
+    expect(bufferedActionsWithDefaultAffectedJSObjects).toEqual({
+      actionDataPayloadConsolidated: [
+        {
+          data: {
+            a: 1,
+          },
+          dataPath: "data",
+          dataPathRef: "",
+          entityName: "widget1",
+        },
+        {
+          data: {
+            a: 2,
+          },
+          dataPath: "data",
+          dataPathRef: "",
+          entityName: "widget2",
+        },
+      ],
+
+      hasBufferedAction: true,
+      hasDebouncedHandleUpdate: true,
+      type: ReduxActionTypes.BUFFERED_ACTION,
+      affectedJSObjects: { ids: ["1"], isAllAffected: false },
+      postEvalActions: [],
+    });
+  });
 });

app/client/src/sagas/EvaluationsSaga.ts

@@ -94,7 +94,11 @@ import type {
 import type { ActionDescription } from "ee/workers/Evaluation/fns";
 import { handleEvalWorkerRequestSaga } from "./EvalWorkerActionSagas";
 import { getAppsmithConfigs } from "ee/configs";
-import { executeJSUpdates } from "actions/pluginActionActions";
+import {
+  executeJSUpdates,
+  type actionDataPayload,
+  type updateActionDataPayloadType,
+} from "actions/pluginActionActions";
 import { setEvaluatedActionSelectorField } from "actions/actionSelectorActions";
 import { waitForWidgetConfigBuild } from "./InitSagas";
 import { logDynamicTriggerExecution } from "ee/sagas/analyticsSaga";
@@ -536,8 +540,17 @@ export const defaultAffectedJSObjects: AffectedJSObjects = {
   ids: [],
 };
 
+interface BUFFERED_ACTION {
+  hasDebouncedHandleUpdate: boolean;
+  hasBufferedAction: boolean;
+  actionDataPayloadConsolidated: actionDataPayload[];
+}
 export function evalQueueBuffer() {
   let canTake = false;
+  let hasDebouncedHandleUpdate = false;
+  let hasBufferedAction = false;
+  let actionDataPayloadConsolidated: actionDataPayload = [];
+
   // TODO: Fix this the next time the file is edited
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   let collectedPostEvalActions: any = [];
@@ -552,8 +565,19 @@ export function evalQueueBuffer() {
 
       collectedAffectedJSObjects = defaultAffectedJSObjects;
       canTake = false;
+      const actionDataPayloadConsolidatedRes = actionDataPayloadConsolidated;
+
+      const hasDebouncedHandleUpdateRes = hasDebouncedHandleUpdate;
+      const hasBufferedActionRes = hasBufferedAction;
+
+      actionDataPayloadConsolidated = [];
+      hasDebouncedHandleUpdate = false;
+      hasBufferedAction = false;
 
       return {
+        hasDebouncedHandleUpdate: hasDebouncedHandleUpdateRes,
+        hasBufferedAction: hasBufferedActionRes,
+        actionDataPayloadConsolidated: actionDataPayloadConsolidatedRes,
         postEvalActions: resp,
         affectedJSObjects,
         type: ReduxActionTypes.BUFFERED_ACTION,
@@ -573,6 +597,25 @@ export function evalQueueBuffer() {
       return;
     }
 
+    if (action.type === ReduxActionTypes.UPDATE_ACTION_DATA) {
+      const { actionDataPayload } =
+        action.payload as updateActionDataPayloadType;
+
+      if (actionDataPayload && actionDataPayload.length) {
+        actionDataPayloadConsolidated = [
+          ...actionDataPayloadConsolidated,
+          ...actionDataPayload,
+        ];
+      }
+
+      hasDebouncedHandleUpdate = true;
+      canTake = true;
+
+      return;
+    }
+
+    hasBufferedAction = true;
+
     canTake = true;
     // extract the affected JS action ids from the action and pass them
     //  as a part of the buffered action
@@ -758,16 +801,56 @@ function* evaluationChangeListenerSaga(): any {
     const action: EvaluationReduxAction<unknown | unknown[]> =
       yield take(evtActionChannel);
 
-    // We are dequing actions from the buffer and inferring the JS actions affected by each
+    const { payload, type } = action;
-    // action. Through this we know ahead the nodes we need to specifically diff, thereby improving performance.
-    const affectedJSObjects = getAffectedJSObjectIdsFromAction(action);
 
-    yield call(evalAndLintingHandler, true, action, {
+    if (type === ReduxActionTypes.UPDATE_ACTION_DATA) {
-      shouldReplay: get(action, "payload.shouldReplay"),
+      yield call(
-      forceEvaluation: shouldForceEval(action),
+        evalWorker.request,
-      requiresLogging: shouldLog(action),
+        EVAL_WORKER_ACTIONS.UPDATE_ACTION_DATA,
-      affectedJSObjects,
+        (payload as updateActionDataPayloadType).actionDataPayload,
-    });
+      );
+      continue;
+    }
+
+    if (type !== ReduxActionTypes.BUFFERED_ACTION) {
+      const affectedJSObjects = getAffectedJSObjectIdsFromAction(action);
+
+      yield call(evalAndLintingHandler, true, action, {
+        shouldReplay: get(action, "payload.shouldReplay"),
+        forceEvaluation: shouldForceEval(action),
+        requiresLogging: shouldLog(action),
+        affectedJSObjects,
+      });
+      continue;
+    }
+
+    // all buffered debounced actions are handled here
+    const {
+      actionDataPayloadConsolidated,
+      hasBufferedAction,
+      hasDebouncedHandleUpdate,
+    } = action as unknown as BUFFERED_ACTION;
+
+    if (hasDebouncedHandleUpdate) {
+      yield call(
+        evalWorker.request,
+        EVAL_WORKER_ACTIONS.UPDATE_ACTION_DATA,
+        actionDataPayloadConsolidated,
+      );
+    }
+
+    if (hasBufferedAction) {
+      // We are dequing actions from the buffer and inferring the JS actions affected by each
+      // action. Through this we know ahead the nodes we need to specifically diff, thereby improving performance.
+      const affectedJSObjects = getAffectedJSObjectIdsFromAction(action);
+
+      yield call(evalAndLintingHandler, true, action, {
+        shouldReplay: get(action, "payload.shouldReplay"),
+        forceEvaluation: shouldForceEval(action),
+        requiresLogging: shouldLog(action),
+        affectedJSObjects,
+      });
+    }
   }
 }