Remove Phoenix & Notebooks - Phase 5: Remove Phoenix and the notebook container/allocation core

Deletes the Phoenix client, notebook container/allocation core, and the legacy ResourceTreeAdapter; rewires the surviving non-notebook Synapse Link state into a new minimal useSynapseLink store; removes dead Phoenix container command-bar UI; and simplifies database-shell gating to enableCloudShell. Database shells (Mongo/Cassandra/Postgres/VCoreMongo) continue to run on CloudShell. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-20 20:37:18 +01:00 · 2026-06-29 14:45:32 -07:00
parent b7caca1cd6
commit e1d8f0dd74
38 changed files with 90 additions and 2821 deletions
@@ -235,7 +235,39 @@ engine deleted there. No separate work remains for this phase.
  pinned-repo methods.
 - Remove GitHub-related localization keys from **all** locale files (`en` + non-English).

-### Phase 5 — Remove Phoenix and the notebook container/allocation core
+### Phase 5 — Remove Phoenix and the notebook container/allocation core ✅ COMPLETED
+> **Status:** Implemented on branch `users/jawelton/removenotebooks-phase5-062926`. Full
+> verification sweep is green: `compile`, `compile:strict`, `lint` (0 errors), `format:check`,
+> `test` (1894 passing), and `build:ci` (webpack) all pass.
+>
+> **Implementation notes / deviations:**
+> - **`useNotebook.ts` was slim-renamed, not just deleted.** Its only surviving non-notebook
+>   state — `isSynapseLinkUpdating` (used by the Synapse Link enable flow + command bar) — was
+>   extracted into a new minimal store `src/Explorer/useSynapseLink.ts`; everything else
+>   (Phoenix/container/notebook state, `sparkClusterConnectionInfo`) was dropped.
+> - **`ResourceTreeAdapter.tsx` (+ test + snapshot) was fully deleted**, along with its
+>   `Explorer.tsx` field/instantiation — after the "My Notebooks" tree removal it was entirely
+>   notebook-only/dead (its last consumers were the deleted `NotebookManager` and `Explorer`).
+> - **Dead Phoenix-container command-bar UI removed:** `ConnectionStatusComponent` /
+>   `MemoryTrackerComponent` (+`.less`, + `Main.tsx` imports), `CommandBarUtil.createConnectionStatus`
+>   / `createMemoryTracker`, and the `CommandBarComponentAdapter` connection-status branch
+>   (they only rendered when `isPhoenix*` was true, now always false).
+> - **`isShellEnabled` simplified to `enableCloudShell`** in `CommandBarComponentButtonFactory`,
+>   `ContextMenuButtonFactory`, and `SplashScreen` (it derived from `isPhoenixFeatures`, always
+>   false). `createOpenTerminalButtonByKind`'s disable logic was rebased onto `enableCloudShell`.
+> - **Other dead survivors removed:** `useSelectedNode.isConnectedToContainer` (no consumers),
+>   `useTabs.closeAllNotebookTabs` (only caller was the deleted `useNotebook`), the dead
+>   `isNotebookEnabled` pass-through param in `treeNodeUtil`, and the stale `useNotebook` import
+>   in `Collection.ts`.
+> - **`useKnockoutExplorer.ts`:** removed the Phoenix MPAC flag block and the
+>   PhoenixNotebooks/PhoenixFeatures/NotebooksDownBanner flight assignments (the
+>   `userContext.features.*` field definitions in `extractFeatures.ts` stay for Phase 6).
+> - **Strict config:** removed `NotebookContentItem.ts` and `useNotebookSnapshotStore.ts`; added
+>   the new `useSynapseLink.ts`.
+> - **Phase 6 boundary held:** `Juno`, the `cosmosNotebooks` ARM client, `Constants.Notebook`,
+>   notebook `DataModels`/`ViewModels`/`ActionContracts`, telemetry actions, and locale strings
+>   were left untouched.
+
 - Delete `src/Phoenix/`, `src/Explorer/Notebook/NotebookContainerClient.ts`,
  `src/Explorer/Notebook/NotebookManager.tsx`, `src/Explorer/Notebook/useNotebook.ts`,
  `src/Explorer/Notebook/NotebookContentItem.ts`, `src/Explorer/Notebook/NotebookUtil.ts`
@@ -28,7 +28,6 @@ import { userContext } from "../UserContext";
 import { getCollectionName, getDatabaseName } from "../Utils/APITypeUtils";
 import { useSidePanel } from "../hooks/useSidePanel";
 import Explorer from "./Explorer";
-import { useNotebook } from "./Notebook/useNotebook";
 import { DeleteCollectionConfirmationPane } from "./Panes/DeleteCollectionConfirmationPane/DeleteCollectionConfirmationPane";
 import { DeleteDatabaseConfirmationPanel } from "./Panes/DeleteDatabaseConfirmationPanel";
 import StoredProcedure from "./Tree/StoredProcedure";
@@ -120,23 +119,17 @@ export const createCollectionContextMenuButton = (
      iconSrc: HostedTerminalIcon,
      onClick: () => {
        const selectedCollection: ViewModels.Collection = useSelectedNode.getState().findSelectedCollection();
-        if (useNotebook.getState().isShellEnabled || userContext.features.enableCloudShell) {
+        if (userContext.features.enableCloudShell) {
          container.openNotebookTerminal(ViewModels.TerminalKind.Mongo);
        } else {
          selectedCollection && selectedCollection.onNewMongoShellClick();
        }
      },
-      label:
-        useNotebook.getState().isShellEnabled || userContext.features.enableCloudShell
-          ? t(Keys.contextMenu.openMongoShell)
-          : t(Keys.contextMenu.newShell),
+      label: userContext.features.enableCloudShell ? t(Keys.contextMenu.openMongoShell) : t(Keys.contextMenu.newShell),
    });
  }

-  if (
-    (useNotebook.getState().isShellEnabled || userContext.features.enableCloudShell) &&
-    userContext.apiType === "Cassandra"
-  ) {
+  if (userContext.features.enableCloudShell && userContext.apiType === "Cassandra") {
    items.push({
      iconSrc: HostedTerminalIcon,
      onClick: () => {
@@ -109,29 +109,15 @@ exports[`SettingsComponent renders 1`] = `
                "computedProperties": [Function],
                "conflictResolutionPolicy": [Function],
                "container": Explorer {
-                  "_isInitializingNotebooks": false,
                  "databasesRefreshed": Promise {},
                  "isFixedCollectionWithSharedThroughputSupported": [Function],
                  "isTabsContentExpanded": [Function],
                  "onRefreshDatabasesKeyPress": [Function],
                  "onRefreshResourcesClick": [Function],
-                  "phoenixClient": PhoenixClient {
-                    "armResourceId": undefined,
-                    "retryOptions": {
-                      "maxTimeout": 5000,
-                      "minTimeout": 5000,
-                      "retries": 3,
-                    },
-                  },
                  "provideFeedbackEmail": [Function],
                  "queriesClient": QueriesClient {
                    "container": [Circular],
                  },
-                  "refreshNotebookList": [Function],
-                  "resourceTree": ResourceTreeAdapter {
-                    "container": [Circular],
-                    "parameters": [Function],
-                  },
                },
                "dataMaskingPolicy": [Function],
                "databaseId": "test",
@@ -230,29 +216,15 @@ exports[`SettingsComponent renders 1`] = `
                "computedProperties": [Function],
                "conflictResolutionPolicy": [Function],
                "container": Explorer {
-                  "_isInitializingNotebooks": false,
                  "databasesRefreshed": Promise {},
                  "isFixedCollectionWithSharedThroughputSupported": [Function],
                  "isTabsContentExpanded": [Function],
                  "onRefreshDatabasesKeyPress": [Function],
                  "onRefreshResourcesClick": [Function],
-                  "phoenixClient": PhoenixClient {
-                    "armResourceId": undefined,
-                    "retryOptions": {
-                      "maxTimeout": 5000,
-                      "minTimeout": 5000,
-                      "retries": 3,
-                    },
-                  },
                  "provideFeedbackEmail": [Function],
                  "queriesClient": QueriesClient {
                    "container": [Circular],
                  },
-                  "refreshNotebookList": [Function],
-                  "resourceTree": ResourceTreeAdapter {
-                    "container": [Circular],
-                    "parameters": [Function],
-                  },
                },
                "dataMaskingPolicy": [Function],
                "databaseId": "test",
@@ -456,29 +428,15 @@ exports[`SettingsComponent renders 1`] = `
                "computedProperties": [Function],
                "conflictResolutionPolicy": [Function],
                "container": Explorer {
-                  "_isInitializingNotebooks": false,
                  "databasesRefreshed": Promise {},
                  "isFixedCollectionWithSharedThroughputSupported": [Function],
                  "isTabsContentExpanded": [Function],
                  "onRefreshDatabasesKeyPress": [Function],
                  "onRefreshResourcesClick": [Function],
-                  "phoenixClient": PhoenixClient {
-                    "armResourceId": undefined,
-                    "retryOptions": {
-                      "maxTimeout": 5000,
-                      "minTimeout": 5000,
-                      "retries": 3,
-                    },
-                  },
                  "provideFeedbackEmail": [Function],
                  "queriesClient": QueriesClient {
                    "container": [Circular],
                  },
-                  "refreshNotebookList": [Function],
-                  "resourceTree": ResourceTreeAdapter {
-                    "container": [Circular],
-                    "parameters": [Function],
-                  },
                },
                "dataMaskingPolicy": [Function],
                "databaseId": "test",
@@ -527,29 +485,15 @@ exports[`SettingsComponent renders 1`] = `
            }
            explorer={
              Explorer {
-                "_isInitializingNotebooks": false,
                "databasesRefreshed": Promise {},
                "isFixedCollectionWithSharedThroughputSupported": [Function],
                "isTabsContentExpanded": [Function],
                "onRefreshDatabasesKeyPress": [Function],
                "onRefreshResourcesClick": [Function],
-                "phoenixClient": PhoenixClient {
-                  "armResourceId": undefined,
-                  "retryOptions": {
-                    "maxTimeout": 5000,
-                    "minTimeout": 5000,
-                    "retries": 3,
-                  },
-                },
                "provideFeedbackEmail": [Function],
                "queriesClient": QueriesClient {
                  "container": [Circular],
                },
-                "refreshNotebookList": [Function],
-                "resourceTree": ResourceTreeAdapter {
-                  "container": [Circular],
-                  "parameters": [Function],
-                },
              }
            }
            isReadOnly={false}
@@ -695,29 +639,15 @@ exports[`SettingsComponent renders 1`] = `
                "computedProperties": [Function],
                "conflictResolutionPolicy": [Function],
                "container": Explorer {
-                  "_isInitializingNotebooks": false,
                  "databasesRefreshed": Promise {},
                  "isFixedCollectionWithSharedThroughputSupported": [Function],
                  "isTabsContentExpanded": [Function],
                  "onRefreshDatabasesKeyPress": [Function],
                  "onRefreshResourcesClick": [Function],
-                  "phoenixClient": PhoenixClient {
-                    "armResourceId": undefined,
-                    "retryOptions": {
-                      "maxTimeout": 5000,
-                      "minTimeout": 5000,
-                      "retries": 3,
-                    },
-                  },
                  "provideFeedbackEmail": [Function],
                  "queriesClient": QueriesClient {
                    "container": [Circular],
                  },
-                  "refreshNotebookList": [Function],
-                  "resourceTree": ResourceTreeAdapter {
-                    "container": [Circular],
-                    "parameters": [Function],
-                  },
                },
                "dataMaskingPolicy": [Function],
                "databaseId": "test",
@@ -766,29 +696,15 @@ exports[`SettingsComponent renders 1`] = `
            }
            explorer={
              Explorer {
-                "_isInitializingNotebooks": false,
                "databasesRefreshed": Promise {},
                "isFixedCollectionWithSharedThroughputSupported": [Function],
                "isTabsContentExpanded": [Function],
                "onRefreshDatabasesKeyPress": [Function],
                "onRefreshResourcesClick": [Function],
-                "phoenixClient": PhoenixClient {
-                  "armResourceId": undefined,
-                  "retryOptions": {
-                    "maxTimeout": 5000,
-                    "minTimeout": 5000,
-                    "retries": 3,
-                  },
-                },
                "provideFeedbackEmail": [Function],
                "queriesClient": QueriesClient {
                  "container": [Circular],
                },
-                "refreshNotebookList": [Function],
-                "resourceTree": ResourceTreeAdapter {
-                  "container": [Circular],
-                  "parameters": [Function],
-                },
              }
            }
          />
@@ -26,9 +26,9 @@ jest.mock("./Controls/Dialog", () => ({
  },
 }));

-// Silence useNotebook subscription calls
-jest.mock("./Notebook/useNotebook", () => ({
-  useNotebook: {
+// Silence useSynapseLink state calls
+jest.mock("./useSynapseLink", () => ({
+  useSynapseLink: {
    subscribe: jest.fn(),
    getState: jest.fn().mockReturnValue(
      new Proxy(
@@ -1,9 +1,6 @@
 import * as msal from "@azure/msal-browser";
-import { Link } from "@fluentui/react/lib/Link";
-import { isPublicInternetAccessAllowed } from "Common/DatabaseAccountUtility";
 import { sendMessage } from "Common/MessageHandler";
 import { stringifyError } from "Common/stringifyError";
-import { Platform, configContext } from "ConfigContext";
 import { MessageTypes } from "Contracts/ExplorerContracts";
 import { useDataPlaneRbac } from "Explorer/Panes/SettingsPane/SettingsPane";
 import {
@@ -13,32 +10,27 @@ import {
  scheduleRefreshFabricToken,
 } from "Platform/Fabric/FabricUtil";
 import { acquireMsalTokenForAccount } from "Utils/AuthorizationUtils";
-import { allowedNotebookServerUrls, validateEndpoint } from "Utils/EndpointUtils";
 import { featureRegistered } from "Utils/FeatureRegistrationUtils";
 import { update } from "Utils/arm/generatedClients/cosmos/databaseAccounts";
 import * as ko from "knockout";
 import React from "react";
 import _ from "underscore";
-import shallow from "zustand/shallow";
 import { AuthType } from "../AuthType";
 import { BindingHandlersRegisterer } from "../Bindings/BindingHandlersRegisterer";
 import * as Constants from "../Common/Constants";
-import { Areas, ConnectionStatusType, HttpStatusCodes, Notebook } from "../Common/Constants";
 import { getErrorMessage, getErrorStack } from "../Common/ErrorHandlingUtils";
 import * as Logger from "../Common/Logger";
 import { QueriesClient } from "../Common/QueriesClient";
 import { readCollection } from "../Common/dataAccess/readCollection";
 import { readDatabases } from "../Common/dataAccess/readDatabases";
 import * as DataModels from "../Contracts/DataModels";
-import { ContainerConnectionInfo, IPhoenixServiceInfo, IProvisionData, IResponse } from "../Contracts/DataModels";
 import * as ViewModels from "../Contracts/ViewModels";
 import { UploadDetailsRecord } from "../Contracts/ViewModels";
 import MetricScenario from "../Metrics/MetricEvents";
 import { ApplicationMetricPhase } from "../Metrics/ScenarioConfig";
 import { scenarioMonitor } from "../Metrics/ScenarioMonitor";
-import { PhoenixClient } from "../Phoenix/PhoenixClient";
 import * as ExplorerSettings from "../Shared/ExplorerSettings";
-import { Action, ActionModifiers } from "../Shared/Telemetry/TelemetryConstants";
+import { Action } from "../Shared/Telemetry/TelemetryConstants";
 import * as TelemetryProcessor from "../Shared/Telemetry/TelemetryProcessor";
 import { updateUserContext, userContext } from "../UserContext";
 import { getCollectionName, getUploadName } from "../Utils/APITypeUtils";
@@ -49,8 +41,6 @@ import { ReactTabKind, useTabs } from "../hooks/useTabs";
 import "./ComponentRegisterer";
 import { DialogProps, useDialog } from "./Controls/Dialog";
 import { useCommandBar } from "./Menus/CommandBar/CommandBarComponentAdapter";
-import type NotebookManager from "./Notebook/NotebookManager";
-import { useNotebook } from "./Notebook/useNotebook";
 import { AddCollectionPanel } from "./Panes/AddCollectionPanel/AddCollectionPanel";
 import { CassandraAddCollectionPane } from "./Panes/CassandraAddCollectionPane/CassandraAddCollectionPane";
 import { ExecuteSprocParamsPane } from "./Panes/ExecuteSprocParamsPane/ExecuteSprocParamsPane";
@@ -60,10 +50,10 @@ import TabsBase from "./Tabs/TabsBase";
 import TerminalTab from "./Tabs/TerminalTab";
 import Database from "./Tree/Database";
 import ResourceTokenCollection from "./Tree/ResourceTokenCollection";
-import { ResourceTreeAdapter } from "./Tree/ResourceTreeAdapter";
 import StoredProcedure from "./Tree/StoredProcedure";
 import { useDatabases } from "./useDatabases";
 import { useSelectedNode } from "./useSelectedNode";
+import { useSynapseLink } from "./useSynapseLink";

 BindingHandlersRegisterer.registerBindingHandlers();

@@ -72,19 +62,10 @@ export default class Explorer {
  public queriesClient: QueriesClient;
  public tableDataClient: TableDataClient;

-  // Resource Tree
-  private resourceTree: ResourceTreeAdapter;
-
  // Tabs
  public isTabsContentExpanded: ko.Observable<boolean>;

-  // Notebooks
-  public notebookManager?: NotebookManager;
-
-  private _isInitializingNotebooks: boolean;
-
  private static readonly MaxNbDatabasesToAutoExpand = 5;
-  public phoenixClient: PhoenixClient;

  /**
   * Resolves when the initial refreshAllDatabases (including collection loading) completes.
@@ -95,13 +76,6 @@ export default class Explorer {
    const startKey: number = TelemetryProcessor.traceStart(Action.InitializeDataExplorer, {
      dataExplorerArea: Constants.Areas.ResourceTree,
    });
-    this._isInitializingNotebooks = false;
-
-    this.phoenixClient = new PhoenixClient(userContext?.databaseAccount?.id);
-    useNotebook.subscribe(
-      () => this.refreshCommandBarButtons(),
-      (state) => state.isNotebooksEnabledForAccount,
-    );

    this.queriesClient = new QueriesClient(this);

@@ -156,31 +130,6 @@ export default class Explorer {
      startKey,
    );

-    useNotebook.subscribe(
-      async () => this.initiateAndRefreshNotebookList(),
-      (state) => [state.isNotebookEnabled, state.isRefreshed],
-      shallow,
-    );
-
-    this.resourceTree = new ResourceTreeAdapter(this);
-
-    // Override notebook server parameters from URL parameters
-    if (
-      userContext.features.notebookServerUrl &&
-      validateEndpoint(userContext.features.notebookServerUrl, allowedNotebookServerUrls) &&
-      userContext.features.notebookServerToken
-    ) {
-      useNotebook.getState().setNotebookServerInfo({
-        notebookServerEndpoint: userContext.features.notebookServerUrl,
-        authToken: userContext.features.notebookServerToken,
-        forwardingId: undefined,
-      });
-    }
-
-    if (userContext.features.notebookBasePath) {
-      useNotebook.getState().setNotebookBasePath(userContext.features.notebookBasePath);
-    }
-
    if (isFabricMirrored()) {
      useTabs.getState().closeReactTab(ReactTabKind.Home);
    }
@@ -188,23 +137,6 @@ export default class Explorer {
    this.refreshExplorer();
  }

-  public async initiateAndRefreshNotebookList(): Promise<void> {
-    if (!this.notebookManager) {
-      const NotebookManager = (await import(/* webpackChunkName: "NotebookManager" */ "./Notebook/NotebookManager"))
-        .default;
-      this.notebookManager = new NotebookManager();
-      this.notebookManager.initialize({
-        container: this,
-        resourceTree: this.resourceTree,
-        refreshCommandBarButtons: () => this.refreshCommandBarButtons(),
-        refreshNotebookList: () => this.refreshNotebookList(),
-      });
-    }
-
-    this.refreshCommandBarButtons();
-    this.refreshNotebookList();
-  }
-
  public openEnableSynapseLinkDialog(targetAccountOverride?: DataModels.AccountOverride): void {
    const subscriptionId = targetAccountOverride?.subscriptionId ?? userContext.subscriptionId;
    const resourceGroup = targetAccountOverride?.resourceGroup ?? userContext.resourceGroup;
@@ -227,7 +159,7 @@ export default class Explorer {
        const clearInProgressMessage = logConsoleProgress(
          "Enabling Azure Synapse Link for this account. This may take a few minutes before you can enable analytical store for this account.",
        );
-        useNotebook.getState().setIsSynapseLinkUpdating(true);
+        useSynapseLink.getState().setIsSynapseLinkUpdating(true);
        useDialog.getState().closeDialog();

        try {
@@ -248,7 +180,7 @@ export default class Explorer {
          logConsoleError(`Enabling Azure Synapse Link for this account failed. ${getErrorMessage(error)}`);
          TelemetryProcessor.traceFailure(Action.EnableAzureSynapseLink, {}, startTime);
        } finally {
-          useNotebook.getState().setIsSynapseLinkUpdating(false);
+          useSynapseLink.getState().setIsSynapseLinkUpdating(false);
        }
      },

@@ -431,7 +363,6 @@ export default class Explorer {
      await (userContext.authType === AuthType.ResourceToken
        ? this.refreshDatabaseForResourceToken()
        : this.refreshAllDatabases());
-      await this.refreshNotebookList();
    }

    logConsoleInfo("Successfully refreshed databases");
@@ -442,108 +373,6 @@ export default class Explorer {
    window.open(Constants.Urls.feedbackEmail, "_blank");
  };

-  public async initNotebooks(databaseAccount: DataModels.DatabaseAccount): Promise<void> {
-    if (!databaseAccount) {
-      throw new Error("No database account specified");
-    }
-
-    if (this._isInitializingNotebooks) {
-      return;
-    }
-    this._isInitializingNotebooks = true;
-    this.refreshNotebookList();
-    this._isInitializingNotebooks = false;
-  }
-
-  public async allocateContainer(): Promise<void> {
-    const notebookServerInfo = useNotebook.getState().notebookServerInfo;
-    const isAllocating = useNotebook.getState().isAllocating;
-    if (
-      isAllocating === false &&
-      (notebookServerInfo === undefined ||
-        (notebookServerInfo && notebookServerInfo.notebookServerEndpoint === undefined))
-    ) {
-      const connectionStatus: ContainerConnectionInfo = {
-        status: ConnectionStatusType.Connecting,
-      };
-
-      useNotebook.getState().setConnectionInfo(connectionStatus);
-
-      let connectionInfo;
-      try {
-        TelemetryProcessor.traceStart(Action.PhoenixConnection, {
-          dataExplorerArea: Areas.Notebook,
-        });
-        useNotebook.getState().setIsAllocating(true);
-        const provisionData: IProvisionData = {
-          cosmosEndpoint: userContext?.databaseAccount?.properties?.documentEndpoint,
-          poolId: undefined,
-        };
-        connectionInfo = await this.phoenixClient.allocateContainer(provisionData);
-        if (!connectionInfo?.data?.phoenixServiceUrl) {
-          throw new Error(`PhoenixServiceUrl is invalid!`);
-        }
-        await this.setNotebookInfo(connectionInfo, connectionStatus);
-        TelemetryProcessor.traceSuccess(Action.PhoenixConnection, {
-          dataExplorerArea: Areas.Notebook,
-        });
-      } catch (error) {
-        TelemetryProcessor.traceFailure(Action.PhoenixConnection, {
-          dataExplorerArea: Areas.Notebook,
-          status: error.status,
-          error: getErrorMessage(error),
-          errorStack: getErrorStack(error),
-        });
-        connectionStatus.status = ConnectionStatusType.Failed;
-        useNotebook.getState().resetContainerConnection(connectionStatus);
-        if (error?.status === HttpStatusCodes.Forbidden && error.message) {
-          useDialog.getState().showOkModalDialog("Connection Failed", `${error.message}`);
-        } else {
-          useDialog
-            .getState()
-            .showOkModalDialog(
-              "Connection Failed",
-              "We are unable to connect to the temporary workspace. Please try again in a few minutes. If the error persists, file a support ticket.",
-            );
-        }
-        throw error;
-      } finally {
-        useNotebook.getState().setIsAllocating(false);
-        this.refreshCommandBarButtons();
-        this.refreshNotebookList();
-        this._isInitializingNotebooks = false;
-      }
-    }
-  }
-
-  public async setNotebookInfo(
-    connectionInfo: IResponse<IPhoenixServiceInfo>,
-    connectionStatus: DataModels.ContainerConnectionInfo,
-  ): Promise<void> {
-    const containerData = {
-      forwardingId: connectionInfo.data.forwardingId,
-      dbAccountName: userContext.databaseAccount.name,
-    };
-    await this.phoenixClient.initiateContainerHeartBeat(true, containerData);
-
-    connectionStatus.status = ConnectionStatusType.Connected;
-    useNotebook.getState().setConnectionInfo(connectionStatus);
-
-    const noteBookServerInfo = {
-      notebookServerEndpoint:
-        (validateEndpoint(userContext.features.notebookServerUrl, allowedNotebookServerUrls) &&
-          userContext.features.notebookServerUrl) ||
-        connectionInfo.data.phoenixServiceUrl,
-      authToken: userContext.features.notebookServerToken || connectionInfo.data.authToken,
-      forwardingId: connectionInfo.data.forwardingId,
-    };
-    useNotebook.getState().setNotebookServerInfo(noteBookServerInfo);
-
-    this.notebookManager?.notebookClient
-      .getMemoryUsage()
-      .then((memoryUsageInfo) => useNotebook.getState().setMemoryUsageInfo(memoryUsageInfo));
-  }
-
  private getDeltaDatabases(
    updatedDatabaseList: DataModels.Database[],
    databases: ViewModels.Database[],
@@ -637,11 +466,6 @@ export default class Explorer {
    }
  }

-  private refreshNotebookList = (): Promise<void> => {
-    // Notebook authoring and listing have been removed.
-    return Promise.resolve();
-  };
-
  public openNotebookTerminal(kind: ViewModels.TerminalKind): void {
    this.connectToNotebookTerminal(kind);
  }
@@ -738,24 +562,6 @@ export default class Explorer {
      .openSidePanel("Input parameters", <ExecuteSprocParamsPane storedProcedure={storedProcedure} />);
  }

-  public getDownloadModalContent(fileName: string): JSX.Element {
-    if (useNotebook.getState().isPhoenixNotebooks) {
-      return (
-        <>
-          <p>{Notebook.galleryNotebookDownloadContent1}</p>
-          <br />
-          <p>
-            {Notebook.galleryNotebookDownloadContent2}
-            <Link href={Notebook.cosmosNotebookGitDocumentationUrl} target="_blank">
-              {Notebook.learnMore}
-            </Link>
-          </p>
-        </>
-      );
-    }
-    return <p> Download {fileName} from gallery as a copy to your notebooks to run and/or edit the notebook. </p>;
-  }
-
  public async refreshExplorer(): Promise<void> {
    // Start DatabaseLoad scenario before fetching databases
    if (userContext.apiType !== "Postgres" && userContext.apiType !== "VCoreMongo") {
@@ -764,8 +570,7 @@ export default class Explorer {

    // Run independent initialization tasks in parallel:
    // - Database loading (ARM/SDK calls for databases + collections)
-    // - Notebook enabled check (Phoenix + Portal backend — no dependency on databases)
-    // - Feature registration check (ARM call — no dependency on databases or notebooks)
+    // - Feature registration check (ARM call — no dependency on databases)
    const databasesTask =
      userContext.apiType !== "Postgres" && userContext.apiType !== "VCoreMongo"
        ? (async () => {
@@ -782,37 +587,12 @@ export default class Explorer {
          })()
        : Promise.resolve();

-    const notebooksTask = !isFabricNative()
-      ? useNotebook.getState().refreshNotebooksEnabledStateForAccount()
-      : Promise.resolve();
-
    const featureRegistrationTask =
      userContext.authType === AuthType.AAD && userContext.apiType === "SQL" && !isFabricNative()
        ? featureRegistered(userContext.subscriptionId, "ThroughputBucketing")
        : Promise.resolve(false);

-    const [, , throughputBucketsEnabled] = await Promise.all([databasesTask, notebooksTask, featureRegistrationTask]);
-
-    // Notebook initialization depends on refreshNotebooksEnabledStateForAccount completing above
-    // TODO: remove reference to isNotebookEnabled and isNotebooksEnabledForAccount
-    const isNotebookEnabled =
-      configContext.platform !== Platform.Fabric &&
-      (userContext.features.notebooksDownBanner ||
-        useNotebook.getState().isPhoenixNotebooks ||
-        useNotebook.getState().isPhoenixFeatures);
-    useNotebook.getState().setIsNotebookEnabled(isNotebookEnabled);
-    useNotebook
-      .getState()
-      .setIsShellEnabled(useNotebook.getState().isPhoenixFeatures && isPublicInternetAccessAllowed());
-
-    TelemetryProcessor.trace(Action.NotebookEnabled, ActionModifiers.Mark, {
-      isNotebookEnabled,
-      dataExplorerArea: Constants.Areas.Notebook,
-    });
-
-    if (useNotebook.getState().isPhoenixNotebooks) {
-      await this.initNotebooks(userContext.databaseAccount);
-    }
+    const [, throughputBucketsEnabled] = await Promise.all([databasesTask, featureRegistrationTask]);

    if (throughputBucketsEnabled) {
      updateUserContext({ throughputBucketsEnabled });
@@ -5,14 +5,12 @@
 */
 import { CommandBar as FluentCommandBar, ICommandBarItemProps } from "@fluentui/react";
 import { makeStyles, useFluent } from "@fluentui/react-components";
-import { useNotebook } from "Explorer/Notebook/useNotebook";
 import { useDataPlaneRbac } from "Explorer/Panes/SettingsPane/SettingsPane";
 import { KeyboardActionGroup, useKeyboardActionGroup } from "KeyboardShortcuts";
 import { isFabric } from "Platform/Fabric/FabricUtil";
 import { userContext } from "UserContext";
 import * as React from "react";
 import create, { UseStore } from "zustand";
-import { ConnectionStatusType } from "../../../Common/Constants";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
 import Explorer from "../../Explorer";
 import { useSelectedNode } from "../../useSelectedNode";
@@ -75,12 +73,6 @@ export const CommandBar: React.FC<Props> = ({ container }: Props) => {
  const setKeyboardHandlers = useKeyboardActionGroup(KeyboardActionGroup.COMMAND_BAR);
  const styles = useStyles();

-  const { connectionInfo, isPhoenixNotebooks, isPhoenixFeatures } = useNotebook((state) => ({
-    connectionInfo: state.connectionInfo,
-    isPhoenixNotebooks: state.isPhoenixNotebooks,
-    isPhoenixFeatures: state.isPhoenixFeatures,
-  }));
-
  // Subscribe to the store changes that affect button creation
  const dataPlaneRbacEnabled = useDataPlaneRbac((state) => state.dataPlaneRbacEnabled);
  const aadTokenUpdated = useDataPlaneRbac((state) => state.aadTokenUpdated);
@@ -134,11 +126,6 @@ export const CommandBar: React.FC<Props> = ({ container }: Props) => {
  const uiFabricControlButtons = CommandBarUtil.convertButton(controlButtons, "var(--colorNeutralBackground1)");
  uiFabricControlButtons.forEach((btn: ICommandBarItemProps) => (btn.iconOnly = true));

-  // Add connection status if needed (using the hook values we got at the top level)
-  if ((isPhoenixNotebooks || isPhoenixFeatures) && connectionInfo?.status !== ConnectionStatusType.Connect) {
-    uiFabricControlButtons.unshift(CommandBarUtil.createConnectionStatus(container, "connectionStatus"));
-  }
-
  const rootStyle = {
    root: {
      backgroundColor: "var(--colorNeutralBackground1)",
@@ -4,7 +4,6 @@ import { DatabaseAccount } from "../../../Contracts/DataModels";
 import { CollectionBase } from "../../../Contracts/ViewModels";
 import { updateUserContext } from "../../../UserContext";
 import Explorer from "../../Explorer";
-import { useNotebook } from "../../Notebook/useNotebook";
 import { useDatabases } from "../../useDatabases";
 import { useSelectedNode } from "../../useSelectedNode";
 import * as CommandBarComponentButtonFactory from "./CommandBarComponentButtonFactory";
@@ -99,11 +98,6 @@ describe("CommandBarComponentButtonFactory tests", () => {
      });
    });

-    afterEach(() => {
-      useNotebook.getState().setIsNotebookEnabled(false);
-      useNotebook.getState().setIsNotebooksEnabledForAccount(false);
-    });
-
    it("Cassandra Api not available - button should be hidden", () => {
      updateUserContext({
        databaseAccount: {
@@ -24,12 +24,12 @@ import { isRunningOnNationalCloud } from "../../../Utils/CloudUtils";
 import { useSidePanel } from "../../../hooks/useSidePanel";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
 import Explorer from "../../Explorer";
-import { useNotebook } from "../../Notebook/useNotebook";
 import { BrowseQueriesPane } from "../../Panes/BrowseQueriesPane/BrowseQueriesPane";
 import { LoadQueryPane } from "../../Panes/LoadQueryPane/LoadQueryPane";
 import { SettingsPane, useDataPlaneRbac } from "../../Panes/SettingsPane/SettingsPane";
 import { useDatabases } from "../../useDatabases";
 import { SelectedNodeState } from "../../useSelectedNode";
+import { useSynapseLink } from "../../useSynapseLink";
 import { ThemeToggleButton } from "./ThemeToggleButton";

 let counter = 0;
@@ -121,14 +121,13 @@ export function createContextCommandBarButtons(
  const buttons: CommandButtonComponentProps[] = [];

  if (!selectedNodeState.isDatabaseNodeOrNoneSelected() && userContext.apiType === "Mongo") {
-    const label =
-      useNotebook.getState().isShellEnabled || userContext.features.enableCloudShell ? "Open Mongo Shell" : "New Shell";
+    const label = userContext.features.enableCloudShell ? "Open Mongo Shell" : "New Shell";
    const newMongoShellBtn: CommandButtonComponentProps = {
      iconSrc: HostedTerminalIcon,
      iconAlt: label,
      onCommandClick: () => {
        const selectedCollection: ViewModels.Collection = selectedNodeState.findSelectedCollection();
-        if (useNotebook.getState().isShellEnabled || userContext.features.enableCloudShell) {
+        if (userContext.features.enableCloudShell) {
          container.openNotebookTerminal(ViewModels.TerminalKind.Mongo);
        } else {
          selectedCollection && selectedCollection.onNewMongoShellClick();
@@ -142,7 +141,7 @@ export function createContextCommandBarButtons(
  }

  if (
-    (useNotebook.getState().isShellEnabled || userContext.features.enableCloudShell) &&
+    userContext.features.enableCloudShell &&
    !selectedNodeState.isDatabaseNodeOrNoneSelected() &&
    userContext.apiType === "Cassandra"
  ) {
@@ -258,7 +257,7 @@ function createOpenSynapseLinkDialogButton(container: Explorer): CommandButtonCo
    onCommandClick: () => container.openEnableSynapseLinkDialog(),
    commandButtonLabel: label,
    hasPopup: false,
-    disabled: useNotebook.getState().isSynapseLinkUpdating,
+    disabled: useSynapseLink.getState().isSynapseLinkUpdating,
    ariaLabel: label,
  };
 }
@@ -499,13 +498,12 @@ function createOpenTerminalButtonByKind(
  const label = `Open ${terminalFriendlyName()} shell`;
  const tooltip =
    "This feature is not yet available in your account's region. View supported regions here: https://aka.ms/cosmos-enable-notebooks.";
-  const disableButton =
-    !useNotebook.getState().isNotebooksEnabledForAccount && !useNotebook.getState().isNotebookEnabled;
+  const disableButton = !userContext.features.enableCloudShell;
  return {
    iconSrc: HostedTerminalIcon,
    iconAlt: label,
    onCommandClick: () => {
-      if (useNotebook.getState().isNotebookEnabled || userContext.features.enableCloudShell) {
+      if (userContext.features.enableCloudShell) {
        container.openNotebookTerminal(terminalKind);
      }
    },
@@ -17,9 +17,6 @@ import { configContext, Platform } from "../../../ConfigContext";
 import { Action, ActionModifiers } from "../../../Shared/Telemetry/TelemetryConstants";
 import * as TelemetryProcessor from "../../../Shared/Telemetry/TelemetryProcessor";
 import { CommandButtonComponentProps } from "../../Controls/CommandButton/CommandButtonComponent";
-import Explorer from "../../Explorer";
-import { ConnectionStatus } from "./ConnectionStatusComponent";
-import { MemoryTracker } from "./MemoryTrackerComponent";

 /**
 * Convert our NavbarButtonConfig to UI Fabric buttons
@@ -258,20 +255,6 @@ export const createDivider = (key: string): ICommandBarItemProps => {
  };
 };

-export const createMemoryTracker = (key: string): ICommandBarItemProps => {
-  return {
-    key,
-    onRender: () => <MemoryTracker />,
-  };
-};
-
-export const createConnectionStatus = (container: Explorer, key: string): ICommandBarItemProps => {
-  return {
-    key,
-    onRender: () => <ConnectionStatus container={container} />,
-  };
-};
-
 export function createKeyboardHandlers(allButtons: CommandButtonComponentProps[]): KeyboardHandlerMap {
  const handlers: KeyboardHandlerMap = {};

@@ -1,184 +0,0 @@
-@import "../../../../less/Common/Constants";
-
-.connectionStatusContainer {
-    cursor: default;
-    align-items: center;
-    border: 1px;
-    min-height: 44px;
-
-    > span {
-        padding-right: 12px;
-        font-size: 12px;
-        font-family: @DataExplorerFont;
-        color: @DefaultFontColor;
-    }
-    &:focus{
-        outline: 0px;
-    }
-}
-.commandReactBtn {
-    &:hover {
-        background-color: rgb(238, 247, 255);
-        color: rgb(32, 31, 30);
-        cursor: pointer;
-    }
-    &:focus{
-        outline: 1px dashed #605e5c;
-    }
-}
-.connectedReactBtn {
-    &:hover {
-        background-color: rgb(238, 247, 255);
-        color: rgb(32, 31, 30);
-        cursor: pointer;
-    }
-    &:focus{
-        outline: 0px;
-    }
-}
-.connectIcon{
-        margin: 0px 4px;
-        height: 18px;
-        width: 18px;
-        color: rgb(0, 120, 212);
-} 
-  .status {
-    position: relative;
-    display: block;
-    margin-right: 8px;
-    width: 1em;
-    height: 1em;
-    font-size: 9px!important;
-    padding: 0px!important;
-    border-radius: 0.5em;
-  }
-  
-  .status::before,
-  .status::after {
-    position: absolute;
-    content: "";
-  }
-  
-  .status::before {
-    top: 0;
-    left: 0;
-    width: 1em;
-    height: 1em;
-    background-color: rgba(#fff, 0.1);
-    border-radius: 100%;
-    opacity: 1;
-    transform: translate3d(0, 0, 0) scale(0);
-  }
-  
-  .connected{
-    background-color: green;
-    box-shadow:
-      0 0 0 0em rgba(green, 0),
-      0em 0.05em 0.1em rgba(#000000, 0.2);
-    transform: translate3d(0, 0, 0) scale(1);
-  }
-  .connecting{
-    background-color:#ffbf00;
-    box-shadow:
-      0 0 0 0em rgba(#ffbf00, 0),
-      0em 0.05em 0.1em rgba(#000000, 0.2);
-    transform: translate3d(0, 0, 0) scale(1);
-  }
-  .failed{
-    background-color:#bd1919;
-    box-shadow:
-      0 0 0 0em rgba(#bd1919, 0),
-      0em 0.05em 0.1em rgba(#000000, 0.2);
-    transform: translate3d(0, 0, 0) scale(1);
-  }
-  
-  .status.connecting.is-animating {
-    animation: status-outer-connecting 3000ms infinite;
-  }
-  .status.failed.is-animating {
-    animation: status-outer-failed 3000ms infinite;
-  }
-  .status.connected.is-animating {
-    animation: status-outer-connected 3000ms infinite;
-  }
-  @keyframes status-outer-connected {
-    
-   0% {
-      transform: translate3d(0, 0, 0) scale(1);
-      box-shadow: 0 0 0 0em #008000, 0em 0.05em 0.1em rgba(0, 0, 0, 0.2);
-    }
-    20% {
-      transform: translate3d(0, 0, 0) scale(1);
-      box-shadow: 0 0 0 0em rgba(0, 128, 0, 0.6), 0em 0.05em 0.1em rgba(0, 0, 0, 0.5);
-    }
-    40% {
-      transform: translate3d(0, 0, 0) scale(1);
-      box-shadow: 0 0 0 0em rgba(0, 128, 0, 0.5), 0em 0.05em 0.1em rgba(0, 0, 0, 0.4);
-    }
-    60% {
-      transform: translate3d(0, 0, 0) scale(1);
-      box-shadow: 0 0 0 0em rgba(0, 128, 0, 0.3), 0em 0.05em 0.1em rgba(0, 0, 0, 0.3);
-    }
-    80% {
-      transform: translate3d(0, 0, 0) scale(1);
-      box-shadow: 0 0 0 0.5em rgba(0, 128, 0, 0.1), 0em 0.05em 0.1em rgba(0, 0, 0, 0.1);
-    }
-    85% {
-      transform: translate3d(0, 0, 0) scale(1);
-      box-shadow: 0 0 0 0em rgba(0, 128, 0, 0), 0em 0.05em 0.1em rgba(0, 0, 0, 0);
-    }
-  }
-  @keyframes status-outer-failed {
-    
-    0% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em #bd1919, 0em 0.05em 0.1em rgba(0, 0, 0, 0.2);
-     }
-     20% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em #c52d2d, 0em 0.05em 0.1em rgba(0, 0, 0, 0.5);
-     }
-     40% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em #b47b7b, 0em 0.05em 0.1em rgba(0, 0, 0, 0.4);
-     }
-     60% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em rgba(0, 128, 0, 0.3), 0em 0.05em 0.1em rgba(0, 0, 0, 0.3);
-     }
-     80% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0.5em rgba(0, 128, 0, 0.1), 0em 0.05em 0.1em rgba(0, 0, 0, 0.1);
-     }
-     85% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em rgba(0, 128, 0, 0), 0em 0.05em 0.1em rgba(0, 0, 0, 0);
-     }
-   }
-   @keyframes status-outer-connecting {
-    
-    0% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em #ffbf00, 0em 0.05em 0.1em rgba(0, 0, 0, 0.2);
-     }
-     20% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em #f0dfad, 0em 0.05em 0.1em rgba(0, 0, 0, 0.5);
-     }
-     40% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em rgba(198, 243, 198, 0.5), 0em 0.05em 0.1em rgba(0, 0, 0, 0.4);
-     }
-     60% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em rgba(213, 241, 213, 0.3), 0em 0.05em 0.1em rgba(0, 0, 0, 0.3);
-     }
-     80% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0.5em rgba(0, 128, 0, 0.1), 0em 0.05em 0.1em rgba(0, 0, 0, 0.1);
-     }
-     85% {
-       transform: translate3d(0, 0, 0) scale(1);
-       box-shadow: 0 0 0 0em rgba(0, 128, 0, 0), 0em 0.05em 0.1em rgba(0, 0, 0, 0);
-     }
-   }
@@ -1,186 +0,0 @@
-import {
-  FocusTrapCallout,
-  FocusZone,
-  FocusZoneTabbableElements,
-  FontWeights,
-  Icon,
-  mergeStyleSets,
-  ProgressIndicator,
-  Stack,
-  Text,
-  TooltipHost,
-} from "@fluentui/react";
-import { useId } from "@fluentui/react-hooks";
-import { ActionButton, DefaultButton } from "@fluentui/react/lib/Button";
-import * as React from "react";
-import "../../../../less/hostedexplorer.less";
-import { ConnectionStatusType, ContainerStatusType, Notebook } from "../../../Common/Constants";
-import Explorer from "../../Explorer";
-import { useNotebook } from "../../Notebook/useNotebook";
-import "../CommandBar/ConnectionStatusComponent.less";
-interface Props {
-  container: Explorer;
-}
-export const ConnectionStatus: React.FC<Props> = ({ container }: Props): JSX.Element => {
-  const connectionInfo = useNotebook((state) => state.connectionInfo);
-  const [second, setSecond] = React.useState("00");
-  const [minute, setMinute] = React.useState("00");
-  const [isActive, setIsActive] = React.useState(false);
-  const [counter, setCounter] = React.useState(0);
-  const [statusColor, setStatusColor] = React.useState("");
-  const [toolTipContent, setToolTipContent] = React.useState("Connect to temporary workspace.");
-  const [isBarDismissed, setIsBarDismissed] = React.useState<boolean>(false);
-  const buttonId = useId("callout-button");
-  const containerInfo = useNotebook((state) => state.containerStatus);
-
-  const styles = mergeStyleSets({
-    callout: {
-      width: 320,
-      padding: "20px 24px",
-    },
-    title: {
-      marginBottom: 12,
-      fontWeight: FontWeights.semilight,
-    },
-    buttons: {
-      display: "flex",
-      justifyContent: "flex-end",
-      marginTop: 20,
-    },
-  });
-
-  React.useEffect(() => {
-    let intervalId: NodeJS.Timeout;
-
-    if (isActive) {
-      intervalId = setInterval(() => {
-        const secondCounter = counter % 60;
-        const minuteCounter = Math.floor(counter / 60);
-        const computedSecond: string = String(secondCounter).length === 1 ? `0${secondCounter}` : `${secondCounter}`;
-        const computedMinute: string = String(minuteCounter).length === 1 ? `0${minuteCounter}` : `${minuteCounter}`;
-
-        setSecond(computedSecond);
-        setMinute(computedMinute);
-
-        setCounter((counter) => counter + 1);
-      }, 1000);
-    }
-    return () => clearInterval(intervalId);
-  }, [isActive, counter]);
-
-  React.useEffect(() => {
-    if (connectionInfo?.status === ConnectionStatusType.Reconnect) {
-      setToolTipContent("Click here to Reconnect to temporary workspace.");
-    } else if (connectionInfo?.status === ConnectionStatusType.Failed) {
-      setStatusColor("status failed is-animating");
-      setToolTipContent("Click here to Reconnect to temporary workspace.");
-    }
-  }, [connectionInfo.status]);
-
-  const stopTimer = () => {
-    setIsActive(false);
-    setCounter(0);
-    setSecond("00");
-    setMinute("00");
-  };
-
-  const memoryUsageInfo = useNotebook((state) => state.memoryUsageInfo);
-  const totalGB = memoryUsageInfo ? memoryUsageInfo.totalKB / Notebook.memoryGuageToGB : 0;
-  const usedGB = totalGB > 0 ? totalGB - memoryUsageInfo.freeKB / Notebook.memoryGuageToGB : 0;
-
-  if (
-    connectionInfo &&
-    (connectionInfo.status === ConnectionStatusType.Connect || connectionInfo.status === ConnectionStatusType.Reconnect)
-  ) {
-    return (
-      <ActionButton className="commandReactBtn" onClick={() => container.allocateContainer()}>
-        <TooltipHost content={toolTipContent}>
-          <Stack className="connectionStatusContainer" horizontal>
-            <Icon iconName="ConnectVirtualMachine" className="connectIcon" />
-            <span>{connectionInfo.status}</span>
-          </Stack>
-        </TooltipHost>
-      </ActionButton>
-    );
-  }
-
-  if (connectionInfo && connectionInfo.status === ConnectionStatusType.Connecting && isActive === false) {
-    stopTimer();
-    setIsActive(true);
-    setStatusColor("status connecting is-animating");
-    setToolTipContent("Connecting to temporary workspace.");
-  } else if (connectionInfo && connectionInfo.status === ConnectionStatusType.Connected && isActive === true) {
-    stopTimer();
-    setStatusColor("status connected is-animating");
-    setToolTipContent("Connected to temporary workspace.");
-  } else if (connectionInfo && connectionInfo.status === ConnectionStatusType.Failed && isActive === true) {
-    stopTimer();
-    setStatusColor("status failed is-animating");
-    setToolTipContent("Click here to Reconnect to temporary workspace.");
-  }
-  return (
-    <>
-      <TooltipHost
-        content={
-          containerInfo?.status === ContainerStatusType.Active
-            ? `Connected to temporary workspace. This temporary workspace will get disconnected in ${Math.round(
-                containerInfo.durationLeftInMinutes,
-              )} minutes.`
-            : toolTipContent
-        }
-      >
-        <ActionButton
-          id={buttonId}
-          className={connectionInfo.status === ConnectionStatusType.Failed ? "commandReactBtn" : "connectedReactBtn"}
-          onClick={(e: React.MouseEvent<HTMLSpanElement>) =>
-            connectionInfo.status === ConnectionStatusType.Failed ? container.allocateContainer() : e.preventDefault()
-          }
-        >
-          <Stack className="connectionStatusContainer" horizontal>
-            <i className={statusColor}></i>
-            <span className={connectionInfo.status === ConnectionStatusType.Failed ? "connectionStatusFailed" : ""}>
-              {connectionInfo.status}
-            </span>
-            {connectionInfo.status === ConnectionStatusType.Connecting && isActive && (
-              <ProgressIndicator description={minute + ":" + second} />
-            )}
-            {connectionInfo.status === ConnectionStatusType.Connected && !isActive && (
-              <ProgressIndicator
-                className={totalGB !== 0 && usedGB / totalGB > 0.8 ? "lowMemory" : ""}
-                description={usedGB.toFixed(1) + " of " + totalGB.toFixed(1) + " GB"}
-                percentComplete={totalGB !== 0 ? usedGB / totalGB : 0}
-              />
-            )}
-          </Stack>
-          {!isBarDismissed &&
-          containerInfo.status &&
-          containerInfo.status === ContainerStatusType.Active &&
-          Math.round(containerInfo.durationLeftInMinutes) <= Notebook.remainingTimeForAlert ? (
-            <FocusTrapCallout
-              role="alertdialog"
-              className={styles.callout}
-              gapSpace={0}
-              target={`#${buttonId}`}
-              onDismiss={() => setIsBarDismissed(true)}
-              setInitialFocus
-            >
-              <Text block variant="xLarge" className={styles.title}>
-                Remaining Time
-              </Text>
-              <Text block variant="small">
-                This temporary workspace will get disconnected in {Math.round(containerInfo.durationLeftInMinutes)}{" "}
-                minutes. To save your work permanently, save your notebooks to a GitHub repository or download the
-                notebooks to your local machine before the session ends.
-              </Text>
-              <FocusZone handleTabKey={FocusZoneTabbableElements.all} isCircularNavigation>
-                <Stack className={styles.buttons} gap={8} horizontal>
-                  <DefaultButton onClick={() => setIsBarDismissed(true)}>Dimiss</DefaultButton>
-                </Stack>
-              </FocusZone>
-            </FocusTrapCallout>
-          ) : undefined}
-        </ActionButton>
-      </TooltipHost>
-    </>
-  );
-};
@@ -1,24 +0,0 @@
-@import "../../../../less/Common/Constants";
-
-.memoryTrackerContainer {
-    cursor: default;
-    align-items: center;
-    margin: 0 9px;
-    border: 1px;
-
-    > span {
-        padding-right: 12px;
-        font-size: 13px;
-        font-family: @DataExplorerFont;
-        color: @DefaultFontColor;
-    }
-
-    > .lowMemory {
-        .ms-ProgressIndicator-progressBar {
-            background-color: @SelectionHigh;
-        }
-        .ms-ProgressIndicator-itemDescription {
-            color: @SelectionHigh;
-        }
-    }
-}
@@ -1,29 +0,0 @@
-import { ProgressIndicator, Spinner, SpinnerSize, Stack } from "@fluentui/react";
-import * as React from "react";
-import { useNotebook } from "../../Notebook/useNotebook";
-
-export const MemoryTracker: React.FC = (): JSX.Element => {
-  const memoryUsageInfo = useNotebook((state) => state.memoryUsageInfo);
-  if (!memoryUsageInfo) {
-    return (
-      <Stack className="memoryTrackerContainer" horizontal>
-        <span>Memory</span>
-        <Spinner size={SpinnerSize.medium} />
-      </Stack>
-    );
-  }
-
-  const totalGB = memoryUsageInfo.totalKB / 1048576;
-  const usedGB = totalGB - memoryUsageInfo.freeKB / 1048576;
-
-  return (
-    <Stack className="memoryTrackerContainer" horizontal>
-      <span>Memory</span>
-      <ProgressIndicator
-        className={usedGB / totalGB > 0.8 ? "lowMemory" : ""}
-        description={usedGB.toFixed(1) + " of " + totalGB.toFixed(1) + " GB"}
-        percentComplete={usedGB / totalGB}
-      />
-    </Stack>
-  );
-};
@@ -1,195 +0,0 @@
-/**
- * Notebook container related stuff
- */
-import { useDialog } from "Explorer/Controls/Dialog";
-import promiseRetry, { AbortError, Options } from "p-retry";
-import { PhoenixClient } from "Phoenix/PhoenixClient";
-import * as Constants from "../../Common/Constants";
-import { ConnectionStatusType, HttpHeaders, HttpStatusCodes, Notebook, PoolIdType } from "../../Common/Constants";
-import { getErrorMessage } from "../../Common/ErrorHandlingUtils";
-import * as Logger from "../../Common/Logger";
-import * as DataModels from "../../Contracts/DataModels";
-import { IPhoenixServiceInfo, IProvisionData, IResponse } from "../../Contracts/DataModels";
-import { userContext } from "../../UserContext";
-import { getAuthorizationHeader } from "../../Utils/AuthorizationUtils";
-import { logConsoleProgress } from "../../Utils/NotificationConsoleUtils";
-import { useNotebook } from "./useNotebook";
-
-export class NotebookContainerClient {
-  private clearReconnectionAttemptMessage? = () => {};
-  private isResettingWorkspace: boolean;
-  private phoenixClient: PhoenixClient;
-  private retryOptions: Options;
-  private scheduleTimerId: NodeJS.Timeout;
-
-  constructor(private onConnectionLost: () => void) {
-    this.phoenixClient = new PhoenixClient(userContext?.databaseAccount?.id);
-    this.retryOptions = {
-      retries: Notebook.retryAttempts,
-      maxTimeout: Notebook.retryAttemptDelayMs,
-      minTimeout: Notebook.retryAttemptDelayMs,
-    };
-
-    this.initHeartbeat(Constants.Notebook.heartbeatDelayMs);
-  }
-
-  private initHeartbeat(delayMs: number): void {
-    this.scheduleHeartbeat(delayMs);
-
-    useNotebook.subscribe(
-      () => this.scheduleHeartbeat(delayMs),
-      (state) => state.notebookServerInfo,
-    );
-  }
-
-  private scheduleHeartbeat(delayMs: number) {
-    if (this.scheduleTimerId) {
-      clearInterval(this.scheduleTimerId);
-    }
-
-    const notebookServerInfo = useNotebook.getState().notebookServerInfo;
-    if (notebookServerInfo?.notebookServerEndpoint) {
-      this.scheduleTimerId = setInterval(async () => {
-        const notebookServerInfo = useNotebook.getState().notebookServerInfo;
-        if (notebookServerInfo?.notebookServerEndpoint) {
-          const memoryUsageInfo = await this.getMemoryUsage();
-          useNotebook.getState().setMemoryUsageInfo(memoryUsageInfo);
-        }
-      }, delayMs);
-    }
-  }
-
-  public async getMemoryUsage(): Promise<DataModels.MemoryUsageInfo> {
-    const notebookServerInfo = useNotebook.getState().notebookServerInfo;
-    if (!notebookServerInfo || !notebookServerInfo.notebookServerEndpoint) {
-      const error = "No server endpoint detected";
-      Logger.logError(error, "NotebookContainerClient/getMemoryUsage");
-      return Promise.reject(error);
-    }
-
-    if (this.isResettingWorkspace) {
-      return undefined;
-    }
-
-    const { notebookServerEndpoint, authToken } = this.getNotebookServerConfig();
-    try {
-      const runMemoryAsync = async () => {
-        return await this._getMemoryAsync(notebookServerEndpoint, authToken);
-      };
-      return await promiseRetry(runMemoryAsync, this.retryOptions);
-    } catch (error) {
-      Logger.logError(getErrorMessage(error), "NotebookContainerClient/getMemoryUsage");
-      if (!this.clearReconnectionAttemptMessage) {
-        this.clearReconnectionAttemptMessage = logConsoleProgress(
-          "Connection lost with Notebook server. Attempting to reconnect...",
-        );
-      }
-      this.onConnectionLost();
-      return undefined;
-    }
-  }
-
-  private async _getMemoryAsync(
-    notebookServerEndpoint: string,
-    authToken: string,
-  ): Promise<DataModels.MemoryUsageInfo> {
-    if (this.shouldExecuteMemoryCall()) {
-      const response = await fetch(`${notebookServerEndpoint}api/metrics/memory`, {
-        method: "GET",
-        headers: {
-          Authorization: authToken,
-          "content-type": "application/json",
-        },
-      });
-      if (response.ok) {
-        if (this.clearReconnectionAttemptMessage) {
-          this.clearReconnectionAttemptMessage();
-          this.clearReconnectionAttemptMessage = undefined;
-        }
-        const memoryUsageInfo = await response.json();
-        if (memoryUsageInfo) {
-          return {
-            totalKB: memoryUsageInfo.total,
-            freeKB: memoryUsageInfo.free,
-          };
-        }
-      } else if (response.status === HttpStatusCodes.NotFound) {
-        throw new AbortError(response.statusText);
-      }
-      throw new Error(response.statusText);
-    } else {
-      return undefined;
-    }
-  }
-
-  private shouldExecuteMemoryCall(): boolean {
-    return (
-      useNotebook.getState().containerStatus?.status === Constants.ContainerStatusType.Active &&
-      useNotebook.getState().connectionInfo?.status === ConnectionStatusType.Connected
-    );
-  }
-
-  public async resetWorkspace(): Promise<IResponse<IPhoenixServiceInfo>> {
-    this.isResettingWorkspace = true;
-    let response: IResponse<IPhoenixServiceInfo>;
-    try {
-      response = await this._resetWorkspace();
-    } catch (error) {
-      Promise.reject(error);
-      return response;
-    }
-    this.isResettingWorkspace = false;
-    return response;
-  }
-
-  private async _resetWorkspace(): Promise<IResponse<IPhoenixServiceInfo>> {
-    const notebookServerInfo = useNotebook.getState().notebookServerInfo;
-    if (!notebookServerInfo || !notebookServerInfo.notebookServerEndpoint) {
-      const error = "No server endpoint detected";
-      Logger.logError(error, "NotebookContainerClient/resetWorkspace");
-      return Promise.reject(error);
-    }
-
-    try {
-      if (useNotebook.getState().isPhoenixNotebooks) {
-        const provisionData: IProvisionData = {
-          cosmosEndpoint: userContext.databaseAccount.properties.documentEndpoint,
-          poolId: PoolIdType.DefaultPoolId,
-        };
-        return await this.phoenixClient.resetContainer(provisionData);
-      }
-      return null;
-    } catch (error) {
-      Logger.logError(getErrorMessage(error), "NotebookContainerClient/resetWorkspace");
-      if (error?.status === HttpStatusCodes.Forbidden && error.message) {
-        useDialog.getState().showOkModalDialog("Connection Failed", `${error.message}`);
-      } else {
-        useDialog
-          .getState()
-          .showOkModalDialog(
-            "Connection Failed",
-            "We are unable to connect to the temporary workspace. Please try again in a few minutes. If the error persists, file a support ticket.",
-          );
-      }
-      throw error;
-    }
-  }
-
-  private getNotebookServerConfig(): { notebookServerEndpoint: string; authToken: string } {
-    const notebookServerInfo = useNotebook.getState().notebookServerInfo;
-    const authToken: string = notebookServerInfo.authToken ? `Token ${notebookServerInfo.authToken}` : undefined;
-
-    return {
-      notebookServerEndpoint: notebookServerInfo.notebookServerEndpoint,
-      authToken,
-    };
-  }
-
-  private getHeaders(): HeadersInit {
-    const authorizationHeader = getAuthorizationHeader();
-    return {
-      [authorizationHeader.header]: authorizationHeader.token,
-      [HttpHeaders.contentType]: "application/json",
-    };
-  }
-}
@@ -1,14 +0,0 @@
-export interface NotebookContentItem {
-  name: string;
-  path: string;
-  type: NotebookContentItemType;
-  children?: NotebookContentItem[];
-  parent?: NotebookContentItem;
-  timestamp?: number;
-}
-
-export enum NotebookContentItemType {
-  Notebook,
-  File,
-  Directory,
-}
@@ -1,32 +0,0 @@
-/*
- * Contains all notebook related stuff meant to be dynamically loaded by explorer
- */
-
-import { JunoClient } from "../../Juno/JunoClient";
-import { userContext } from "../../UserContext";
-import Explorer from "../Explorer";
-import { ResourceTreeAdapter } from "../Tree/ResourceTreeAdapter";
-import { NotebookContainerClient } from "./NotebookContainerClient";
-
-export interface NotebookManagerOptions {
-  container: Explorer;
-  resourceTree: ResourceTreeAdapter;
-  refreshCommandBarButtons: () => void;
-  refreshNotebookList: () => void;
-}
-
-export default class NotebookManager {
-  private params: NotebookManagerOptions;
-  public junoClient: JunoClient;
-
-  public notebookClient: NotebookContainerClient;
-
-  public initialize(params: NotebookManagerOptions): void {
-    this.params = params;
-    this.junoClient = new JunoClient();
-
-    this.notebookClient = new NotebookContainerClient(() =>
-      this.params.container.initNotebooks(userContext?.databaseAccount),
-    );
-  }
-}
@@ -1,42 +0,0 @@
-import { NotebookUtil } from "./NotebookUtil";
-
-const fileName = "file";
-const notebookName = "file.ipynb";
-const folderPath = "folder";
-const filePath = `${folderPath}/${fileName}`;
-const notebookPath = `${folderPath}/${notebookName}`;
-
-describe("NotebookUtil", () => {
-  describe("isNotebookFile", () => {
-    it("works for jupyter file paths", () => {
-      expect(NotebookUtil.isNotebookFile(filePath)).toBeFalsy();
-      expect(NotebookUtil.isNotebookFile(notebookPath)).toBeTruthy();
-    });
-  });
-
-  describe("getFilePath", () => {
-    it("works for jupyter file paths", () => {
-      expect(NotebookUtil.getFilePath(folderPath, fileName)).toEqual(filePath);
-    });
-  });
-
-  describe("getParentPath", () => {
-    it("works for jupyter file paths", () => {
-      expect(NotebookUtil.getParentPath(filePath)).toEqual(folderPath);
-    });
-  });
-
-  describe("getName", () => {
-    it("works for jupyter file paths", () => {
-      expect(NotebookUtil.getName(filePath)).toEqual(fileName);
-      expect(NotebookUtil.getName(notebookPath)).toEqual(notebookName);
-    });
-  });
-
-  describe("replaceName", () => {
-    it("works for jupyter file paths", () => {
-      expect(NotebookUtil.replaceName(filePath, "newName")).toEqual(filePath.replace(fileName, "newName"));
-      expect(NotebookUtil.replaceName(notebookPath, "newName")).toEqual(notebookPath.replace(notebookName, "newName"));
-    });
-  });
-});
@@ -1,81 +0,0 @@
-import * as StringUtils from "../../Utils/StringUtils";
-import { NotebookContentItem, NotebookContentItemType } from "./NotebookContentItem";
-
-// Must match rx-jupyter' FileType
-export type FileType = "directory" | "file" | "notebook";
-
-// Utilities for notebooks
-export class NotebookUtil {
-  /**
-   * It's a notebook file if the filename ends with .ipynb.
-   */
-  public static isNotebookFile(notebookPath: string): boolean {
-    const fileName = NotebookUtil.getName(notebookPath);
-    return !!fileName && StringUtils.endsWith(fileName, ".ipynb");
-  }
-
-  /**
-   * Note: this does not connect the item to a parent in a tree.
-   * @param name
-   * @param path
-   */
-  public static createNotebookContentItem(name: string, path: string, type: FileType): NotebookContentItem {
-    return {
-      name,
-      path,
-      type: NotebookUtil.getType(type),
-      timestamp: NotebookUtil.getCurrentTimestamp(),
-    };
-  }
-
-  /**
-   * Convert rx-jupyter type to our type
-   * @param type
-   */
-  public static getType(type: FileType): NotebookContentItemType {
-    switch (type) {
-      case "directory":
-        return NotebookContentItemType.Directory;
-      case "notebook":
-        return NotebookContentItemType.Notebook;
-      case "file":
-        return NotebookContentItemType.File;
-      default:
-        throw new Error(`Unknown file type: ${type}`);
-    }
-  }
-
-  public static getCurrentTimestamp(): number {
-    return new Date().getTime();
-  }
-
-  public static getFilePath(path: string, fileName: string): string {
-    return `${path}/${fileName}`;
-  }
-
-  public static getParentPath(filepath: string): undefined | string {
-    const basename = NotebookUtil.getName(filepath);
-    if (basename) {
-      const parentPath = filepath.split(basename).shift();
-      if (parentPath) {
-        return parentPath.replace(/\/$/, ""); // no trailling slash
-      }
-    }
-
-    return undefined;
-  }
-
-  public static getName(path: string): undefined | string {
-    return path.split("/").pop();
-  }
-
-  public static replaceName(path: string, newName: string): string {
-    const contentName = path.split("/").pop();
-    if (!contentName) {
-      throw new Error(`Failed to extract name from path ${path}`);
-    }
-
-    const basePath = path.split(contentName).shift();
-    return `${basePath}${newName}`;
-  }
-}
@@ -1,248 +0,0 @@
-import { cloneDeep } from "lodash";
-import create, { UseStore } from "zustand";
-import { AuthType } from "../../AuthType";
-import * as Constants from "../../Common/Constants";
-import { ConnectionStatusType } from "../../Common/Constants";
-import { getErrorMessage } from "../../Common/ErrorHandlingUtils";
-import * as Logger from "../../Common/Logger";
-import { configContext } from "../../ConfigContext";
-import * as DataModels from "../../Contracts/DataModels";
-import { ContainerConnectionInfo, ContainerInfo } from "../../Contracts/DataModels";
-import { Action } from "../../Shared/Telemetry/TelemetryConstants";
-import * as TelemetryProcessor from "../../Shared/Telemetry/TelemetryProcessor";
-import { userContext } from "../../UserContext";
-import { getAuthorizationHeader } from "../../Utils/AuthorizationUtils";
-import { useTabs } from "../../hooks/useTabs";
-import { NotebookContentItem, NotebookContentItemType } from "./NotebookContentItem";
-
-interface NotebookState {
-  isNotebookEnabled: boolean;
-  isNotebooksEnabledForAccount: boolean;
-  notebookServerInfo: DataModels.NotebookWorkspaceConnectionInfo;
-  sparkClusterConnectionInfo: DataModels.SparkClusterConnectionInfo;
-  isSynapseLinkUpdating: boolean;
-  memoryUsageInfo: DataModels.MemoryUsageInfo;
-  isShellEnabled: boolean;
-  notebookBasePath: string;
-  isInitializingNotebooks: boolean;
-  myNotebooksContentRoot: NotebookContentItem;
-  galleryContentRoot: NotebookContentItem;
-  connectionInfo: ContainerConnectionInfo;
-  notebookFolderName: string;
-  isAllocating: boolean;
-  isRefreshed: boolean;
-  containerStatus: ContainerInfo;
-  isPhoenixNotebooks: boolean;
-  isPhoenixFeatures: boolean;
-  setIsNotebookEnabled: (isNotebookEnabled: boolean) => void;
-  setIsNotebooksEnabledForAccount: (isNotebooksEnabledForAccount: boolean) => void;
-  setNotebookServerInfo: (notebookServerInfo: DataModels.NotebookWorkspaceConnectionInfo) => void;
-  setSparkClusterConnectionInfo: (sparkClusterConnectionInfo: DataModels.SparkClusterConnectionInfo) => void;
-  setIsSynapseLinkUpdating: (isSynapseLinkUpdating: boolean) => void;
-  setMemoryUsageInfo: (memoryUsageInfo: DataModels.MemoryUsageInfo) => void;
-  setIsShellEnabled: (isShellEnabled: boolean) => void;
-  setNotebookBasePath: (notebookBasePath: string) => void;
-  setNotebookFolderName: (notebookFolderName: string) => void;
-  refreshNotebooksEnabledStateForAccount: () => Promise<void>;
-  findItem: (root: NotebookContentItem, item: NotebookContentItem) => NotebookContentItem;
-  insertNotebookItem: (parent: NotebookContentItem, item: NotebookContentItem) => void;
-  updateNotebookItem: (item: NotebookContentItem) => void;
-  deleteNotebookItem: (item: NotebookContentItem) => void;
-  initializeNotebooksTree: () => Promise<void>;
-  setConnectionInfo: (connectionInfo: ContainerConnectionInfo) => void;
-  setIsAllocating: (isAllocating: boolean) => void;
-  resetContainerConnection: (connectionStatus: ContainerConnectionInfo) => void;
-  setIsRefreshed: (isAllocating: boolean) => void;
-  setContainerStatus: (containerStatus: ContainerInfo) => void;
-  getPhoenixStatus: () => Promise<void>;
-  setIsPhoenixNotebooks: (isPhoenixNotebooks: boolean) => void;
-  setIsPhoenixFeatures: (isPhoenixFeatures: boolean) => void;
-}
-
-export const useNotebook: UseStore<NotebookState> = create((set, get) => ({
-  isNotebookEnabled: false,
-  isNotebooksEnabledForAccount: false,
-  notebookServerInfo: {
-    notebookServerEndpoint: undefined,
-    authToken: undefined,
-    forwardingId: undefined,
-  },
-  sparkClusterConnectionInfo: {
-    userName: undefined,
-    password: undefined,
-    endpoints: [],
-  },
-  isSynapseLinkUpdating: false,
-  memoryUsageInfo: undefined,
-  isShellEnabled: false,
-  notebookBasePath: Constants.Notebook.defaultBasePath,
-  isInitializingNotebooks: false,
-  myNotebooksContentRoot: undefined,
-  galleryContentRoot: undefined,
-  connectionInfo: {
-    status: ConnectionStatusType.Connect,
-  },
-  notebookFolderName: undefined,
-  isAllocating: false,
-  isRefreshed: false,
-  containerStatus: {
-    status: undefined,
-    durationLeftInMinutes: undefined,
-    phoenixServerInfo: undefined,
-  },
-  isPhoenixNotebooks: undefined,
-  isPhoenixFeatures: undefined,
-  setIsNotebookEnabled: (isNotebookEnabled: boolean) => set({ isNotebookEnabled }),
-  setIsNotebooksEnabledForAccount: (isNotebooksEnabledForAccount: boolean) => set({ isNotebooksEnabledForAccount }),
-  setNotebookServerInfo: (notebookServerInfo: DataModels.NotebookWorkspaceConnectionInfo) =>
-    set({ notebookServerInfo }),
-  setSparkClusterConnectionInfo: (sparkClusterConnectionInfo: DataModels.SparkClusterConnectionInfo) =>
-    set({ sparkClusterConnectionInfo }),
-  setIsSynapseLinkUpdating: (isSynapseLinkUpdating: boolean) => set({ isSynapseLinkUpdating }),
-  setMemoryUsageInfo: (memoryUsageInfo: DataModels.MemoryUsageInfo) => set({ memoryUsageInfo }),
-  setIsShellEnabled: (isShellEnabled: boolean) => set({ isShellEnabled }),
-  setNotebookBasePath: (notebookBasePath: string) => set({ notebookBasePath }),
-  setNotebookFolderName: (notebookFolderName: string) => set({ notebookFolderName }),
-  refreshNotebooksEnabledStateForAccount: async (): Promise<void> => {
-    await get().getPhoenixStatus();
-    const { databaseAccount, authType } = userContext;
-    if (
-      authType === AuthType.EncryptedToken ||
-      authType === AuthType.ResourceToken ||
-      authType === AuthType.MasterKey
-    ) {
-      set({ isNotebooksEnabledForAccount: false });
-      return;
-    }
-
-    const firstWriteLocation =
-      userContext.apiType === "Postgres" || userContext.apiType === "VCoreMongo"
-        ? databaseAccount?.location
-        : databaseAccount?.properties?.writeLocations?.[0]?.locationName.toLowerCase();
-    const disallowedLocationsUri: string = `${configContext.PORTAL_BACKEND_ENDPOINT}/api/disallowedlocations`;
-    const authorizationHeader = getAuthorizationHeader();
-    const startKey = TelemetryProcessor.traceStart(Action.RefreshNotebooksEnabled, {
-      dataExplorerArea: "Notebook",
-    });
-    try {
-      const response = await fetch(disallowedLocationsUri, {
-        method: "POST",
-        body: JSON.stringify({
-          resourceTypes: [Constants.ArmResourceTypes.notebookWorkspaces],
-        }),
-        headers: {
-          [authorizationHeader.header]: authorizationHeader.token,
-          [Constants.HttpHeaders.contentType]: "application/json",
-        },
-      });
-
-      if (!response.ok) {
-        throw new Error("Failed to fetch disallowed locations");
-      }
-
-      const disallowedLocations: string[] = await response.json();
-      if (!disallowedLocations) {
-        Logger.logInfo("No disallowed locations found", "Explorer/isNotebooksEnabledForAccount");
-        set({ isNotebooksEnabledForAccount: true });
-        return;
-      }
-
-      // firstWriteLocation should not be disallowed
-      const isAccountInAllowedLocation = firstWriteLocation && disallowedLocations.indexOf(firstWriteLocation) === -1;
-      set({ isNotebooksEnabledForAccount: isAccountInAllowedLocation });
-      TelemetryProcessor.traceSuccess(Action.RefreshNotebooksEnabled, { isAccountInAllowedLocation }, startKey);
-    } catch (error) {
-      Logger.logError(getErrorMessage(error), "Explorer/isNotebooksEnabledForAccount");
-      set({ isNotebooksEnabledForAccount: false });
-      TelemetryProcessor.traceFailure(Action.RefreshNotebooksEnabled, { error: getErrorMessage(error) }, startKey);
-    }
-  },
-  findItem: (root: NotebookContentItem, item: NotebookContentItem): NotebookContentItem => {
-    const currentItem = root || get().myNotebooksContentRoot;
-
-    if (currentItem) {
-      if (currentItem.path === item.path && currentItem.name === item.name) {
-        return currentItem;
-      }
-
-      if (currentItem.children) {
-        for (const childItem of currentItem.children) {
-          const result = get().findItem(childItem, item);
-          if (result) {
-            return result;
-          }
-        }
-      }
-    }
-
-    return undefined;
-  },
-  insertNotebookItem: (parent: NotebookContentItem, item: NotebookContentItem): void => {
-    const root = cloneDeep(get().myNotebooksContentRoot);
-    const parentItem = get().findItem(root, parent);
-    item.parent = parentItem;
-    if (parentItem.children) {
-      parentItem.children.push(item);
-    } else {
-      parentItem.children = [item];
-    }
-    set({ myNotebooksContentRoot: root });
-  },
-  updateNotebookItem: (item: NotebookContentItem): void => {
-    const root = cloneDeep(get().myNotebooksContentRoot);
-    const parentItem = get().findItem(root, item.parent);
-    parentItem.children = parentItem.children.filter((child) => child.path !== item.path);
-    parentItem.children.push(item);
-    item.parent = parentItem;
-    set({ myNotebooksContentRoot: root });
-  },
-  deleteNotebookItem: (item: NotebookContentItem): void => {
-    const root = cloneDeep(get().myNotebooksContentRoot);
-    const parentItem = get().findItem(root, item.parent);
-    parentItem.children = parentItem.children.filter((child) => child.path !== item.path);
-    set({ myNotebooksContentRoot: root });
-  },
-  initializeNotebooksTree: async (): Promise<void> => {
-    const notebookFolderName = get().isPhoenixNotebooks ? "Temporary Notebooks" : "My Notebooks";
-    set({ notebookFolderName });
-    const myNotebooksContentRoot = {
-      name: get().notebookFolderName,
-      path: get().notebookBasePath,
-      type: NotebookContentItemType.Directory,
-    };
-    const galleryContentRoot = {
-      name: "Gallery",
-      path: "Gallery",
-      type: NotebookContentItemType.File,
-    };
-
-    set({
-      myNotebooksContentRoot,
-      galleryContentRoot,
-    });
-  },
-  setConnectionInfo: (connectionInfo: ContainerConnectionInfo) => set({ connectionInfo }),
-  setIsAllocating: (isAllocating: boolean) => set({ isAllocating }),
-  resetContainerConnection: (connectionStatus: ContainerConnectionInfo): void => {
-    useTabs.getState().closeAllNotebookTabs(true);
-    useNotebook.getState().setConnectionInfo(connectionStatus);
-    useNotebook.getState().setNotebookServerInfo(undefined);
-    useNotebook.getState().setIsAllocating(false);
-    useNotebook.getState().setContainerStatus({
-      status: undefined,
-      durationLeftInMinutes: undefined,
-      phoenixServerInfo: undefined,
-    });
-  },
-  setIsRefreshed: (isRefreshed: boolean) => set({ isRefreshed }),
-  setContainerStatus: (containerStatus: ContainerInfo) => set({ containerStatus }),
-  getPhoenixStatus: async () => {
-    if (get().isPhoenixNotebooks === undefined || get().isPhoenixFeatures === undefined) {
-      // getDbAccountAllowedStatus has been deprecated; Phoenix features are no longer available.
-      set({ isPhoenixNotebooks: false });
-      set({ isPhoenixFeatures: false });
-    }
-  },
-  setIsPhoenixNotebooks: (isPhoenixNotebooks: boolean) => set({ isPhoenixNotebooks: isPhoenixNotebooks }),
-  setIsPhoenixFeatures: (isPhoenixFeatures: boolean) => set({ isPhoenixFeatures: isPhoenixFeatures }),
-}));
@@ -145,29 +145,15 @@ exports[`AddGlobalSecondaryIndexPanel render default panel 1`] = `
      <AnalyticalStoreComponent
        explorer={
          Explorer {
-            "_isInitializingNotebooks": false,
            "databasesRefreshed": Promise {},
            "isFixedCollectionWithSharedThroughputSupported": [Function],
            "isTabsContentExpanded": [Function],
            "onRefreshDatabasesKeyPress": [Function],
            "onRefreshResourcesClick": [Function],
-            "phoenixClient": PhoenixClient {
-              "armResourceId": undefined,
-              "retryOptions": {
-                "maxTimeout": 5000,
-                "minTimeout": 5000,
-                "retries": 3,
-              },
-            },
            "provideFeedbackEmail": [Function],
            "queriesClient": QueriesClient {
              "container": [Circular],
            },
-            "refreshNotebookList": [Function],
-            "resourceTree": ResourceTreeAdapter {
-              "container": [Circular],
-              "parameters": [Function],
-            },
          }
        }
        setEnableAnalyticalStore={[Function]}
@@ -37,7 +37,6 @@ import { userContext } from "../../UserContext";
 import { getCollectionName } from "../../Utils/APITypeUtils";
 import Explorer from "../Explorer";
 import * as MostRecentActivity from "../MostRecentActivity/MostRecentActivity";
-import { useNotebook } from "../Notebook/useNotebook";
 import { useDatabases } from "../useDatabases";
 import { useSelectedNode } from "../useSelectedNode";

@@ -182,12 +181,6 @@ export const SplashScreen: React.FC<SplashScreenProps> = ({ explorer }) => {

  React.useEffect(() => {
    subscriptions.push(
-      {
-        dispose: useNotebook.subscribe(
-          () => setState({}),
-          (state) => state.isNotebookEnabled,
-        ),
-      },
      { dispose: useSelectedNode.subscribe(() => setState({})) },
      {
        dispose: useCarousel.subscribe(
@@ -609,7 +602,7 @@ export const SplashScreen: React.FC<SplashScreenProps> = ({ explorer }) => {
  };

  const getRecentItems = (): JSX.Element => {
-    const recentItems = createRecentItems()?.filter((item) => item.description !== "Notebook");
+    const recentItems = createRecentItems();

    return (
      <Stack>
@@ -5,7 +5,6 @@ import {
  TriggerDefinition,
  UserDefinedFunctionDefinition,
 } from "@azure/cosmos";
-import { useNotebook } from "Explorer/Notebook/useNotebook";
 import { DocumentsTabV2 } from "Explorer/Tabs/DocumentsTabV2/DocumentsTabV2";
 import { isFabricMirrored } from "Platform/Fabric/FabricUtil";
 import { useDataplaneRbacAuthorization } from "Utils/AuthorizationUtils";
@@ -18,12 +18,8 @@ import { userContext } from "UserContext";
 import { ReactTabKind, useTabs } from "hooks/useTabs";
 import * as React from "react";
 import { useEffect, useMemo } from "react";
-import shallow from "zustand/shallow";
 import { useDatabaseLoadScenario } from "../../Metrics/useMetricPhases";
 import Explorer from "../Explorer";
-import { useNotebook } from "../Notebook/useNotebook";
-
-export const MyNotebooksTitle = "My Notebooks";

 interface ResourceTreeProps {
  explorer: Explorer;
@@ -40,13 +36,6 @@ export const ResourceTree: React.FC<ResourceTreeProps> = ({ explorer }: Resource
  const [openItems, setOpenItems] = React.useState<TreeItemValue[]>([]);
  const treeStyles = useTreeStyles();

-  const { isNotebookEnabled } = useNotebook(
-    (state) => ({
-      isNotebookEnabled: state.isNotebookEnabled,
-    }),
-    shallow,
-  );
-
  // We intentionally avoid using a state selector here because we want to re-render the tree if the active tab changes.
  const { refreshActiveTab } = useTabs();

@@ -65,24 +54,8 @@ export const ResourceTree: React.FC<ResourceTreeProps> = ({ explorer }: Resource
  const databaseTreeNodes = useMemo(() => {
    return userContext.authType === AuthType.ResourceToken
      ? createResourceTokenTreeNodes(resourceTokenCollection)
-      : createDatabaseTreeNodes(
-          explorer,
-          isNotebookEnabled,
-          databases,
-          refreshActiveTab,
-          searchText,
-          sortOrder,
-          pinnedDatabaseIds,
-        );
-  }, [
-    resourceTokenCollection,
-    databases,
-    isNotebookEnabled,
-    refreshActiveTab,
-    searchText,
-    sortOrder,
-    pinnedDatabaseIds,
-  ]);
+      : createDatabaseTreeNodes(explorer, databases, refreshActiveTab, searchText, sortOrder, pinnedDatabaseIds);
+  }, [resourceTokenCollection, databases, refreshActiveTab, searchText, sortOrder, pinnedDatabaseIds]);

  const headerNodes: TreeNode[] = isFabricMirrored()
    ? []
@@ -1,240 +0,0 @@
-import { shallow } from "enzyme";
-import React from "react";
-import * as DataModels from "../../Contracts/DataModels";
-import * as ViewModels from "../../Contracts/ViewModels";
-import {
-  LegacyTreeComponent,
-  LegacyTreeComponentProps,
-  LegacyTreeNode,
-} from "../Controls/TreeComponent/LegacyTreeComponent";
-import Explorer from "../Explorer";
-import Collection from "./Collection";
-import { ResourceTreeAdapter } from "./ResourceTreeAdapter";
-
-const schema: DataModels.ISchema = {
-  id: "fakeSchemaId",
-  accountName: "fakeAccountName",
-  resource: "dbs/FakeDbName/colls/FakeCollectionName",
-  fields: [
-    {
-      dataType: {
-        code: 15,
-        name: "String",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "_rid",
-      path: "_rid",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-    {
-      dataType: {
-        code: 11,
-        name: "Int64",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "_ts",
-      path: "_ts",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-    {
-      dataType: {
-        code: 15,
-        name: "String",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "id",
-      path: "id",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-    {
-      dataType: {
-        code: 15,
-        name: "String",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "pk",
-      path: "pk",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-    {
-      dataType: {
-        code: 15,
-        name: "String",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "other",
-      path: "other",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-    {
-      dataType: {
-        code: 15,
-        name: "String",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "name",
-      path: "nested.name",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-    {
-      dataType: {
-        code: 11,
-        name: "Int64",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "someNumber",
-      path: "nested.someNumber",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-    {
-      dataType: {
-        code: 17,
-        name: "Double",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "anotherNumber",
-      path: "nested.anotherNumber",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-    {
-      dataType: {
-        code: 15,
-        name: "String",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "name",
-      path: "items.list.items.name",
-      maxRepetitionLevel: 1,
-      maxDefinitionLevel: 3,
-    },
-    {
-      dataType: {
-        code: 11,
-        name: "Int64",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "someNumber",
-      path: "items.list.items.someNumber",
-      maxRepetitionLevel: 1,
-      maxDefinitionLevel: 3,
-    },
-    {
-      dataType: {
-        code: 17,
-        name: "Double",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "anotherNumber",
-      path: "items.list.items.anotherNumber",
-      maxRepetitionLevel: 1,
-      maxDefinitionLevel: 3,
-    },
-    {
-      dataType: {
-        code: 15,
-        name: "String",
-      },
-      hasNulls: true,
-      isArray: false,
-      schemaType: {
-        code: 0,
-        name: "Data",
-      },
-      name: "_etag",
-      path: "_etag",
-      maxRepetitionLevel: 0,
-      maxDefinitionLevel: 1,
-    },
-  ],
-};
-
-const createMockCollection = (): ViewModels.Collection => {
-  const mockCollection = {} as DataModels.Collection;
-  mockCollection._rid = "fakeRid";
-  mockCollection._self = "fakeSelf";
-  mockCollection.id = "fakeId";
-  mockCollection.analyticalStorageTtl = 0;
-  mockCollection.schema = schema;
-
-  const mockCollectionVM: ViewModels.Collection = new Collection(new Explorer(), "fakeDatabaseId", mockCollection);
-
-  return mockCollectionVM;
-};
-
-describe("Resource tree for schema", () => {
-  const mockContainer = new Explorer();
-  const resourceTree = new ResourceTreeAdapter(mockContainer);
-
-  it("should render", () => {
-    const rootNode: LegacyTreeNode = resourceTree.buildSchemaNode(createMockCollection());
-    const props: LegacyTreeComponentProps = {
-      rootNode,
-      className: "dataResourceTree",
-    };
-    const wrapper = shallow(<LegacyTreeComponent {...props} />);
-    expect(wrapper).toMatchSnapshot();
-  });
-});
@@ -1,496 +0,0 @@
-import { TreeNodeMenuItem } from "Explorer/Controls/TreeComponent/TreeNodeComponent";
-import { collectionWasOpened } from "Explorer/MostRecentActivity/MostRecentActivity";
-import { shouldShowScriptNodes } from "Explorer/Tree/treeNodeUtil";
-import { getItemName } from "Utils/APITypeUtils";
-import * as ko from "knockout";
-import * as React from "react";
-import CosmosDBIcon from "../../../images/Azure-Cosmos-DB.svg";
-import DeleteIcon from "../../../images/delete.svg";
-import CopyIcon from "../../../images/notebook/Notebook-copy.svg";
-import NewNotebookIcon from "../../../images/notebook/Notebook-new.svg";
-import NotebookIcon from "../../../images/notebook/Notebook-resource.svg";
-import FileIcon from "../../../images/notebook/file-cosmos.svg";
-import RefreshIcon from "../../../images/refresh-cosmos.svg";
-import CollectionIcon from "../../../images/tree-collection.svg";
-import { ReactAdapter } from "../../Bindings/ReactBindingHandler";
-import { isPublicInternetAccessAllowed } from "../../Common/DatabaseAccountUtility";
-import * as DataModels from "../../Contracts/DataModels";
-import * as ViewModels from "../../Contracts/ViewModels";
-import { Action, ActionModifiers } from "../../Shared/Telemetry/TelemetryConstants";
-import * as TelemetryProcessor from "../../Shared/Telemetry/TelemetryProcessor";
-import { userContext } from "../../UserContext";
-import { isServerlessAccount } from "../../Utils/CapabilityUtils";
-import { useTabs } from "../../hooks/useTabs";
-import * as ResourceTreeContextMenuButtonFactory from "../ContextMenuButtonFactory";
-import { useDialog } from "../Controls/Dialog";
-import { LegacyTreeComponent, LegacyTreeNode } from "../Controls/TreeComponent/LegacyTreeComponent";
-import Explorer from "../Explorer";
-import { useCommandBar } from "../Menus/CommandBar/CommandBarComponentAdapter";
-import { NotebookContentItem, NotebookContentItemType } from "../Notebook/NotebookContentItem";
-import { NotebookUtil } from "../Notebook/NotebookUtil";
-import { useNotebook } from "../Notebook/useNotebook";
-import TabsBase from "../Tabs/TabsBase";
-import { useDatabases } from "../useDatabases";
-import { useSelectedNode } from "../useSelectedNode";
-import StoredProcedure from "./StoredProcedure";
-import Trigger from "./Trigger";
-import UserDefinedFunction from "./UserDefinedFunction";
-
-export class ResourceTreeAdapter implements ReactAdapter {
-  public static readonly MyNotebooksTitle = "My Notebooks";
-
-  private static readonly DataTitle = "DATA";
-  private static readonly NotebooksTitle = "NOTEBOOKS";
-  private static readonly PseudoDirPath = "PsuedoDir";
-
-  public parameters: ko.Observable<number>;
-
-  public myNotebooksContentRoot: NotebookContentItem;
-
-  public constructor(private container: Explorer) {
-    this.parameters = ko.observable(Date.now());
-
-    useSelectedNode.subscribe(() => this.triggerRender());
-    useTabs.subscribe(
-      () => this.triggerRender(),
-      (state) => state.activeTab,
-    );
-    useNotebook.subscribe(
-      () => this.triggerRender(),
-      (state) => state.isNotebookEnabled,
-    );
-
-    useDatabases.subscribe(() => this.triggerRender());
-    this.triggerRender();
-  }
-
-  private traceMyNotebookTreeInfo() {
-    const myNotebooksTree = this.myNotebooksContentRoot;
-    if (myNotebooksTree.children) {
-      // Count 1st generation children (tree is lazy-loaded)
-      const nodeCounts = { files: 0, notebooks: 0, directories: 0 };
-      myNotebooksTree.children.forEach((treeNode) => {
-        switch ((treeNode as NotebookContentItem).type) {
-          case NotebookContentItemType.File:
-            nodeCounts.files++;
-            break;
-          case NotebookContentItemType.Directory:
-            nodeCounts.directories++;
-            break;
-          case NotebookContentItemType.Notebook:
-            nodeCounts.notebooks++;
-            break;
-          default:
-            break;
-        }
-      });
-      TelemetryProcessor.trace(Action.RefreshResourceTreeMyNotebooks, ActionModifiers.Mark, { ...nodeCounts });
-    }
-  }
-
-  public renderComponent(): JSX.Element {
-    const dataRootNode = this.buildDataTree();
-    return <LegacyTreeComponent className="dataResourceTree" rootNode={dataRootNode} />;
-  }
-
-  public async initialize(): Promise<void[]> {
-    const refreshTasks: Promise<void>[] = [];
-
-    this.myNotebooksContentRoot = {
-      name: useNotebook.getState().notebookFolderName,
-      path: useNotebook.getState().notebookBasePath,
-      type: NotebookContentItemType.Directory,
-    };
-
-    return Promise.all(refreshTasks);
-  }
-
-  private buildDataTree(): LegacyTreeNode {
-    const databaseTreeNodes: LegacyTreeNode[] = useDatabases
-      .getState()
-      .databases.map((database: ViewModels.Database) => {
-        const databaseNode: LegacyTreeNode = {
-          label: database.id(),
-          iconSrc: CosmosDBIcon,
-          isExpanded: false,
-          className: "databaseHeader",
-          children: [],
-          isSelected: () => useSelectedNode.getState().isDataNodeSelected(database.id()),
-          contextMenu: ResourceTreeContextMenuButtonFactory.createDatabaseContextMenu(this.container, database.id()),
-          onClick: async (isExpanded) => {
-            // Rewritten version of expandCollapseDatabase():
-            if (isExpanded) {
-              database.collapseDatabase();
-            } else {
-              if (databaseNode.children?.length === 0) {
-                databaseNode.isLoading = true;
-              }
-              await database.expandDatabase();
-            }
-            databaseNode.isLoading = false;
-            useSelectedNode.getState().setSelectedNode(database);
-            useCommandBar.getState().setContextButtons([]);
-            useTabs.getState().refreshActiveTab((tab: TabsBase) => tab.collection?.databaseId === database.id());
-          },
-          onContextMenuOpen: () => useSelectedNode.getState().setSelectedNode(database),
-        };
-
-        if (database.isDatabaseShared()) {
-          databaseNode.children.push({
-            label: "Scale",
-            isSelected: () =>
-              useSelectedNode
-                .getState()
-                .isDataNodeSelected(database.id(), undefined, [ViewModels.CollectionTabKind.DatabaseSettings]),
-            onClick: database.onSettingsClick.bind(database),
-          });
-        }
-
-        // Find collections
-        database
-          .collections()
-          .forEach((collection: ViewModels.Collection) =>
-            databaseNode.children.push(this.buildCollectionNode(database, collection)),
-          );
-
-        database.collections.subscribe((collections: ViewModels.Collection[]) => {
-          collections.forEach((collection: ViewModels.Collection) =>
-            databaseNode.children.push(this.buildCollectionNode(database, collection)),
-          );
-        });
-
-        return databaseNode;
-      });
-
-    return {
-      label: undefined,
-      isExpanded: true,
-      children: databaseTreeNodes,
-    };
-  }
-
-  private buildCollectionNode(database: ViewModels.Database, collection: ViewModels.Collection): LegacyTreeNode {
-    const children: LegacyTreeNode[] = [];
-    children.push({
-      label: getItemName(),
-      onClick: () => {
-        collection.openTab();
-        // push to most recent
-        collectionWasOpened(userContext.databaseAccount?.name, collection);
-      },
-      isSelected: () =>
-        useSelectedNode
-          .getState()
-          .isDataNodeSelected(collection.databaseId, collection.id(), [
-            ViewModels.CollectionTabKind.Documents,
-            ViewModels.CollectionTabKind.Graph,
-          ]),
-      contextMenu: ResourceTreeContextMenuButtonFactory.createCollectionContextMenuButton(this.container, collection),
-    });
-
-    if (userContext.apiType !== "Cassandra" || !isServerlessAccount()) {
-      children.push({
-        label: database.isDatabaseShared() || isServerlessAccount() ? "Settings" : "Scale & Settings",
-        onClick: collection.onSettingsClick.bind(collection),
-        isSelected: () =>
-          useSelectedNode
-            .getState()
-            .isDataNodeSelected(collection.databaseId, collection.id(), [ViewModels.CollectionTabKind.Settings]),
-      });
-    }
-
-    const schemaNode: LegacyTreeNode = this.buildSchemaNode(collection);
-    if (schemaNode) {
-      children.push(schemaNode);
-    }
-
-    if (shouldShowScriptNodes()) {
-      children.push(this.buildStoredProcedureNode(collection));
-      children.push(this.buildUserDefinedFunctionsNode(collection));
-      children.push(this.buildTriggerNode(collection));
-    }
-
-    // This is a rewrite of showConflicts
-    const showConflicts =
-      userContext?.databaseAccount?.properties.enableMultipleWriteLocations &&
-      collection.rawDataModel &&
-      !!collection.rawDataModel.conflictResolutionPolicy;
-
-    if (showConflicts) {
-      children.push({
-        label: "Conflicts",
-        onClick: collection.onConflictsClick.bind(collection),
-        isSelected: () =>
-          useSelectedNode
-            .getState()
-            .isDataNodeSelected(collection.databaseId, collection.id(), [ViewModels.CollectionTabKind.Conflicts]),
-      });
-    }
-
-    return {
-      label: collection.id(),
-      iconSrc: CollectionIcon,
-      isExpanded: false,
-      children: children,
-      className: "collectionHeader",
-      contextMenu: ResourceTreeContextMenuButtonFactory.createCollectionContextMenuButton(this.container, collection),
-      onClick: () => {
-        // Rewritten version of expandCollapseCollection
-        useSelectedNode.getState().setSelectedNode(collection);
-        useCommandBar.getState().setContextButtons([]);
-        useTabs
-          .getState()
-          .refreshActiveTab(
-            (tab: TabsBase) =>
-              tab.collection?.id() === collection.id() && tab.collection.databaseId === collection.databaseId,
-          );
-      },
-      onExpanded: () => {
-        if (shouldShowScriptNodes()) {
-          collection.loadStoredProcedures();
-          collection.loadUserDefinedFunctions();
-          collection.loadTriggers();
-        }
-      },
-      isSelected: () => useSelectedNode.getState().isDataNodeSelected(collection.databaseId, collection.id()),
-      onContextMenuOpen: () => useSelectedNode.getState().setSelectedNode(collection),
-    };
-  }
-
-  private buildStoredProcedureNode(collection: ViewModels.Collection): LegacyTreeNode {
-    return {
-      label: "Stored Procedures",
-      children: collection.storedProcedures().map((sp: StoredProcedure) => ({
-        label: sp.id(),
-        onClick: sp.open.bind(sp),
-        isSelected: () =>
-          useSelectedNode
-            .getState()
-            .isDataNodeSelected(collection.databaseId, collection.id(), [
-              ViewModels.CollectionTabKind.StoredProcedures,
-            ]),
-        contextMenu: ResourceTreeContextMenuButtonFactory.createStoreProcedureContextMenuItems(this.container, sp),
-      })),
-      onClick: () => {
-        collection.selectedSubnodeKind(ViewModels.CollectionTabKind.StoredProcedures);
-        useTabs
-          .getState()
-          .refreshActiveTab(
-            (tab: TabsBase) =>
-              tab.collection?.id() === collection.id() && tab.collection.databaseId === collection.databaseId,
-          );
-      },
-    };
-  }
-
-  private buildUserDefinedFunctionsNode(collection: ViewModels.Collection): LegacyTreeNode {
-    return {
-      label: "User Defined Functions",
-      children: collection.userDefinedFunctions().map((udf: UserDefinedFunction) => ({
-        label: udf.id(),
-        onClick: udf.open.bind(udf),
-        isSelected: () =>
-          useSelectedNode
-            .getState()
-            .isDataNodeSelected(collection.databaseId, collection.id(), [
-              ViewModels.CollectionTabKind.UserDefinedFunctions,
-            ]),
-        contextMenu: ResourceTreeContextMenuButtonFactory.createUserDefinedFunctionContextMenuItems(
-          this.container,
-          udf,
-        ),
-      })),
-      onClick: () => {
-        collection.selectedSubnodeKind(ViewModels.CollectionTabKind.UserDefinedFunctions);
-        useTabs
-          .getState()
-          .refreshActiveTab(
-            (tab: TabsBase) =>
-              tab.collection?.id() === collection.id() && tab.collection.databaseId === collection.databaseId,
-          );
-      },
-    };
-  }
-
-  private buildTriggerNode(collection: ViewModels.Collection): LegacyTreeNode {
-    return {
-      label: "Triggers",
-      children: collection.triggers().map((trigger: Trigger) => ({
-        label: trigger.id(),
-        onClick: trigger.open.bind(trigger),
-        isSelected: () =>
-          useSelectedNode
-            .getState()
-            .isDataNodeSelected(collection.databaseId, collection.id(), [ViewModels.CollectionTabKind.Triggers]),
-        contextMenu: ResourceTreeContextMenuButtonFactory.createTriggerContextMenuItems(this.container, trigger),
-      })),
-      onClick: () => {
-        collection.selectedSubnodeKind(ViewModels.CollectionTabKind.Triggers);
-        useTabs
-          .getState()
-          .refreshActiveTab(
-            (tab: TabsBase) =>
-              tab.collection?.id() === collection.id() && tab.collection.databaseId === collection.databaseId,
-          );
-      },
-    };
-  }
-
-  public buildSchemaNode(collection: ViewModels.Collection): LegacyTreeNode {
-    if (collection.analyticalStorageTtl() == undefined) {
-      return undefined;
-    }
-
-    if (!collection.schema || !collection.schema.fields) {
-      return undefined;
-    }
-
-    return {
-      label: "Schema",
-      children: this.getSchemaNodes(collection.schema.fields),
-      onClick: () => {
-        collection.selectedSubnodeKind(ViewModels.CollectionTabKind.Schema);
-        useTabs.getState().refreshActiveTab((tab: TabsBase) => tab.collection && tab.collection.rid === collection.rid);
-      },
-    };
-  }
-
-  private getSchemaNodes(fields: DataModels.IDataField[]): LegacyTreeNode[] {
-    const schema: any = {};
-
-    //unflatten
-    fields.forEach((field: DataModels.IDataField, fieldIndex: number) => {
-      const path: string[] = field.path.split(".");
-      const fieldProperties = [field.dataType.name, `HasNulls: ${field.hasNulls}`];
-      let current: any = {};
-      path.forEach((name: string, pathIndex: number) => {
-        if (pathIndex === 0) {
-          if (schema[name] === undefined) {
-            if (pathIndex === path.length - 1) {
-              schema[name] = fieldProperties;
-            } else {
-              schema[name] = {};
-            }
-          }
-          current = schema[name];
-        } else {
-          if (current[name] === undefined) {
-            if (pathIndex === path.length - 1) {
-              current[name] = fieldProperties;
-            } else {
-              current[name] = {};
-            }
-          }
-          current = current[name];
-        }
-      });
-    });
-
-    const traverse = (obj: any): LegacyTreeNode[] => {
-      const children: LegacyTreeNode[] = [];
-
-      if (obj !== null && !Array.isArray(obj) && typeof obj === "object") {
-        Object.entries(obj).forEach(([key, value]) => {
-          children.push({ label: key, children: traverse(value) });
-        });
-      } else if (Array.isArray(obj)) {
-        return [{ label: obj[0] }, { label: obj[1] }];
-      }
-
-      return children;
-    };
-
-    return traverse(schema);
-  }
-
-  private buildChildNodes(
-    item: NotebookContentItem,
-    onFileClick: (item: NotebookContentItem) => void,
-    createDirectoryContextMenu: boolean,
-    createFileContextMenu: boolean,
-  ): LegacyTreeNode[] {
-    if (!item || !item.children) {
-      return [];
-    } else {
-      return item.children.map((item) => {
-        const result =
-          item.type === NotebookContentItemType.Directory
-            ? this.buildNotebookDirectoryNode(item, onFileClick, createDirectoryContextMenu, createFileContextMenu)
-            : this.buildNotebookFileNode(item, onFileClick, createFileContextMenu);
-        result.timestamp = item.timestamp;
-        return result;
-      });
-    }
-  }
-
-  private buildNotebookFileNode(
-    item: NotebookContentItem,
-    onFileClick: (item: NotebookContentItem) => void,
-    createFileContextMenu: boolean,
-  ): LegacyTreeNode {
-    return {
-      label: item.name,
-      iconSrc: NotebookUtil.isNotebookFile(item.path) ? NotebookIcon : FileIcon,
-      className: "notebookHeader",
-      onClick: () => onFileClick(item),
-      isSelected: () => {
-        const activeTab = useTabs.getState().activeTab;
-        return (
-          activeTab &&
-          activeTab.tabKind === ViewModels.CollectionTabKind.NotebookV2 &&
-          /* TODO Redesign Tab interface so that resource tree doesn't need to know about NotebookV2Tab.
-             NotebookV2Tab could be dynamically imported, but not worth it to just get this type right.
-           */
-          (activeTab as any).notebookPath() === item.path
-        );
-      },
-      contextMenu: createFileContextMenu && this.createFileContextMenu(),
-      data: item,
-    };
-  }
-
-  private createFileContextMenu(): TreeNodeMenuItem[] {
-    return [];
-  }
-
-  private createDirectoryContextMenu(): TreeNodeMenuItem[] {
-    return [];
-  }
-
-  private buildNotebookDirectoryNode(
-    item: NotebookContentItem,
-    onFileClick: (item: NotebookContentItem) => void,
-    createDirectoryContextMenu: boolean,
-    createFileContextMenu: boolean,
-  ): LegacyTreeNode {
-    return {
-      label: item.name,
-      iconSrc: undefined,
-      className: "notebookHeader",
-      isAlphaSorted: true,
-      isLeavesParentsSeparate: true,
-      onClick: undefined,
-      isSelected: () => {
-        const activeTab = useTabs.getState().activeTab;
-        return (
-          activeTab &&
-          activeTab.tabKind === ViewModels.CollectionTabKind.NotebookV2 &&
-          /* TODO Redesign Tab interface so that resource tree doesn't need to know about NotebookV2Tab.
-             NotebookV2Tab could be dynamically imported, but not worth it to just get this type right.
-           */
-          (activeTab as any).notebookPath() === item.path
-        );
-      },
-      contextMenu:
-        createDirectoryContextMenu && item.path !== ResourceTreeAdapter.PseudoDirPath
-          ? this.createDirectoryContextMenu()
-          : undefined,
-      data: item,
-      children: this.buildChildNodes(item, onFileClick, createDirectoryContextMenu, createFileContextMenu),
-    };
-  }
-
-  public triggerRender() {
-    window.requestAnimationFrame(() => this.parameters(Date.now()));
-  }
-}
@@ -1,173 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`Resource tree for schema should render 1`] = `
-<div
-  className="treeComponent dataResourceTree"
-  role="tree"
->
-  <LegacyTreeNodeComponent
-    generation={0}
-    node={
-      {
-        "children": [
-          {
-            "children": [
-              {
-                "label": "String",
-              },
-              {
-                "label": "HasNulls: true",
-              },
-            ],
-            "label": "_rid",
-          },
-          {
-            "children": [
-              {
-                "label": "Int64",
-              },
-              {
-                "label": "HasNulls: true",
-              },
-            ],
-            "label": "_ts",
-          },
-          {
-            "children": [
-              {
-                "label": "String",
-              },
-              {
-                "label": "HasNulls: true",
-              },
-            ],
-            "label": "id",
-          },
-          {
-            "children": [
-              {
-                "label": "String",
-              },
-              {
-                "label": "HasNulls: true",
-              },
-            ],
-            "label": "pk",
-          },
-          {
-            "children": [
-              {
-                "label": "String",
-              },
-              {
-                "label": "HasNulls: true",
-              },
-            ],
-            "label": "other",
-          },
-          {
-            "children": [
-              {
-                "children": [
-                  {
-                    "label": "String",
-                  },
-                  {
-                    "label": "HasNulls: true",
-                  },
-                ],
-                "label": "name",
-              },
-              {
-                "children": [
-                  {
-                    "label": "Int64",
-                  },
-                  {
-                    "label": "HasNulls: true",
-                  },
-                ],
-                "label": "someNumber",
-              },
-              {
-                "children": [
-                  {
-                    "label": "Double",
-                  },
-                  {
-                    "label": "HasNulls: true",
-                  },
-                ],
-                "label": "anotherNumber",
-              },
-            ],
-            "label": "nested",
-          },
-          {
-            "children": [
-              {
-                "children": [
-                  {
-                    "children": [
-                      {
-                        "children": [
-                          {
-                            "label": "String",
-                          },
-                          {
-                            "label": "HasNulls: true",
-                          },
-                        ],
-                        "label": "name",
-                      },
-                      {
-                        "children": [
-                          {
-                            "label": "Int64",
-                          },
-                          {
-                            "label": "HasNulls: true",
-                          },
-                        ],
-                        "label": "someNumber",
-                      },
-                      {
-                        "children": [
-                          {
-                            "label": "Double",
-                          },
-                          {
-                            "label": "HasNulls: true",
-                          },
-                        ],
-                        "label": "anotherNumber",
-                      },
-                    ],
-                    "label": "items",
-                  },
-                ],
-                "label": "list",
-              },
-            ],
-            "label": "items",
-          },
-          {
-            "children": [
-              {
-                "label": "String",
-              },
-              {
-                "label": "HasNulls: true",
-              },
-            ],
-            "label": "_etag",
-          },
-        ],
-        "label": "Schema",
-        "onClick": [Function],
-      }
-    }
-    paddingLeft={0}
-  />
-</div>
-`;
@@ -363,7 +363,7 @@ exports[`createDatabaseTreeNodes generates the correct tree structure for the Ca
 ]
 `;

-exports[`createDatabaseTreeNodes generates the correct tree structure for the Mongo API, with Notebooks and Phoenix features, on Emulator 1`] = `
+exports[`createDatabaseTreeNodes generates the correct tree structure for the Mongo API, on Emulator 1`] = `
 [
  {
    "children": [
@@ -4,7 +4,6 @@ import { CosmosDbArtifactType } from "Contracts/FabricMessagesContract";
 import { TreeNode } from "Explorer/Controls/TreeComponent/TreeNodeComponent";
 import Explorer from "Explorer/Explorer";
 import { useCommandBar } from "Explorer/Menus/CommandBar/CommandBarComponentAdapter";
-import { useNotebook } from "Explorer/Notebook/useNotebook";
 import { DeleteDatabaseConfirmationPanel } from "Explorer/Panes/DeleteDatabaseConfirmationPanel";
 import TabsBase from "Explorer/Tabs/TabsBase";
 import StoredProcedure from "Explorer/Tree/StoredProcedure";
@@ -363,7 +362,7 @@ describe("createDatabaseTreeNodes", () => {
          },
        } as never,
      });
-      nodes = createDatabaseTreeNodes(explorer, false, useDatabases.getState().databases, refreshActiveTab, "");
+      nodes = createDatabaseTreeNodes(explorer, useDatabases.getState().databases, refreshActiveTab, "");
    });

    it("creates expected tree", () => {
@@ -371,11 +370,10 @@ describe("createDatabaseTreeNodes", () => {
    });
  });

-  it.each<[string, Platform, boolean, Partial<DataModels.DatabaseAccountExtendedProperties>, Partial<UserContext>]>([
+  it.each<[string, Platform, Partial<DataModels.DatabaseAccountExtendedProperties>, Partial<UserContext>]>([
    [
      "the SQL API, on Fabric read-only (mirrored)",
      Platform.Fabric,
-      false,
      { capabilities: [], enableMultipleWriteLocations: true },
      {
        fabricContext: {
@@ -387,7 +385,6 @@ describe("createDatabaseTreeNodes", () => {
    [
      "the SQL API, on Fabric non read-only (native)",
      Platform.Fabric,
-      false,
      { capabilities: [], enableMultipleWriteLocations: true },
      {
        fabricContext: {
@@ -399,7 +396,6 @@ describe("createDatabaseTreeNodes", () => {
    [
      "the SQL API, on Portal",
      Platform.Portal,
-      false,
      { capabilities: [], enableMultipleWriteLocations: true },
      {
        fabricContext: undefined,
@@ -408,7 +404,6 @@ describe("createDatabaseTreeNodes", () => {
    [
      "the Cassandra API, serverless, on Hosted",
      Platform.Hosted,
-      false,
      {
        capabilities: [
          { name: CapabilityNames.EnableCassandra, description: "" },
@@ -418,45 +413,34 @@ describe("createDatabaseTreeNodes", () => {
      { fabricContext: undefined },
    ],
    [
-      "the Mongo API, with Notebooks and Phoenix features, on Emulator",
+      "the Mongo API, on Emulator",
      Platform.Emulator,
-      true,
      {
        capabilities: [{ name: CapabilityNames.EnableMongo, description: "" }],
      },
      { fabricContext: undefined },
    ],
-  ])(
-    "generates the correct tree structure for %s",
-    (_, platform, isNotebookEnabled, dbAccountProperties, userContext) => {
-      useNotebook.setState({ isPhoenixFeatures: isNotebookEnabled });
-      updateConfigContext({ platform });
-      updateUserContext({
-        ...userContext,
-        databaseAccount: {
-          properties: {
-            enableMultipleWriteLocations: true,
-            ...dbAccountProperties,
-          },
-        } as unknown as DataModels.DatabaseAccount,
-      });
-      const nodes = createDatabaseTreeNodes(
-        explorer,
-        isNotebookEnabled,
-        useDatabases.getState().databases,
-        refreshActiveTab,
-        "",
-      );
-      expect(nodes).toMatchSnapshot();
-    },
-  );
+  ])("generates the correct tree structure for %s", (_, platform, dbAccountProperties, userContext) => {
+    updateConfigContext({ platform });
+    updateUserContext({
+      ...userContext,
+      databaseAccount: {
+        properties: {
+          enableMultipleWriteLocations: true,
+          ...dbAccountProperties,
+        },
+      } as unknown as DataModels.DatabaseAccount,
+    });
+    const nodes = createDatabaseTreeNodes(explorer, useDatabases.getState().databases, refreshActiveTab, "");
+    expect(nodes).toMatchSnapshot();
+  });

  // The above tests focused on the tree structure. The below tests focus on some core behaviors of the nodes.
  // They are not exhaustive, because exhaustive tests here require a lot of mocking and can become very brittle.
  // The goal is to cover some key behaviors like loading child nodes, opening tabs/side panels, etc.

  it("adds new collections to database as they appear", () => {
-    const nodes = createDatabaseTreeNodes(explorer, false, useDatabases.getState().databases, refreshActiveTab, "");
+    const nodes = createDatabaseTreeNodes(explorer, useDatabases.getState().databases, refreshActiveTab, "");
    const giganticDbNode = nodes.find((node) => node.label === giganticDb.id());
    expect(giganticDbNode).toBeDefined();
    expect(giganticDbNode.children.map((node) => node.label)).toStrictEqual(["schemaCollection", "load more"]);
@@ -488,7 +472,7 @@ describe("createDatabaseTreeNodes", () => {
          },
        } as unknown as DataModels.DatabaseAccount,
      });
-      nodes = createDatabaseTreeNodes(explorer, false, useDatabases.getState().databases, refreshActiveTab, "");
+      nodes = createDatabaseTreeNodes(explorer, useDatabases.getState().databases, refreshActiveTab, "");
      standardDbNode = nodes.find((node) => node.label === standardDb.id());
      sharedDbNode = nodes.find((node) => node.label === sharedDb.id());
      giganticDbNode = nodes.find((node) => node.label === giganticDb.id());
@@ -643,7 +627,7 @@ describe("createDatabaseTreeNodes", () => {
        setup();

        // Rebuild the nodes after changing the user/config context.
-        nodes = createDatabaseTreeNodes(explorer, false, useDatabases.getState().databases, refreshActiveTab, "");
+        nodes = createDatabaseTreeNodes(explorer, useDatabases.getState().databases, refreshActiveTab, "");
        standardDbNode = nodes.find((node) => node.label === standardDb.id());
        standardCollectionNode = standardDbNode.children.find((node) => node.label === standardCollection.id());

@@ -137,7 +137,6 @@ export const createResourceTokenTreeNodes = (collection: ViewModels.CollectionBa

 export const createDatabaseTreeNodes = (
  container: Explorer,
-  isNotebookEnabled: boolean,
  databases: ViewModels.Database[],
  refreshActiveTab: (comparator: (tab: TabsBase) => boolean) => void,
  searchText = "",
@@ -184,9 +183,7 @@ export const createDatabaseTreeNodes = (
      database
        .collections()
        .forEach((collection: ViewModels.Collection) =>
-          databaseNode.children.push(
-            buildCollectionNode(database, collection, isNotebookEnabled, container, refreshActiveTab),
-          ),
+          databaseNode.children.push(buildCollectionNode(database, collection, container, refreshActiveTab)),
        );

      if (database.collectionsContinuationToken) {
@@ -254,14 +251,13 @@ export const createDatabaseTreeNodes = (
 export const buildCollectionNode = (
  database: ViewModels.Database,
  collection: ViewModels.Collection,
-  isNotebookEnabled: boolean,
  container: Explorer,
  refreshActiveTab: (comparator: (tab: TabsBase) => boolean) => void,
 ): TreeNode => {
  let children: TreeNode[];
  // Flat Tree for Fabric
  if (!isFabricMirrored()) {
-    children = buildCollectionNodeChildren(database, collection, isNotebookEnabled, container, refreshActiveTab);
+    children = buildCollectionNodeChildren(database, collection, container, refreshActiveTab);
  }

  const collectionNode: TreeNode = {
@@ -310,7 +306,6 @@ export const buildCollectionNode = (
 const buildCollectionNodeChildren = (
  database: ViewModels.Database,
  collection: ViewModels.Collection,
-  isNotebookEnabled: boolean,
  container: Explorer,
  refreshActiveTab: (comparator: (tab: TabsBase) => boolean) => void,
 ): TreeNode[] => {
@@ -1,5 +1,3 @@
-import { ConnectionStatusType } from "Common/Constants";
-import { useNotebook } from "Explorer/Notebook/useNotebook";
 import create, { UseStore } from "zustand";
 import * as ViewModels from "../Contracts/ViewModels";
 import { useTabs } from "../hooks/useTabs";
@@ -13,7 +11,6 @@ export interface SelectedNodeState {
    collectionId?: string,
    subnodeKinds?: ViewModels.CollectionTabKind[],
  ) => boolean;
-  isConnectedToContainer: () => boolean;
 }

 export const useSelectedNode: UseStore<SelectedNodeState> = create((set, get) => ({
@@ -61,7 +58,4 @@ export const useSelectedNode: UseStore<SelectedNodeState> = create((set, get) =>
      subnodeKinds.includes(selectedSubnodeKind)
    );
  },
-  isConnectedToContainer: (): boolean => {
-    return useNotebook.getState().connectionInfo?.status === ConnectionStatusType.Connected;
-  },
 }));
@@ -0,0 +1,11 @@
+import create, { UseStore } from "zustand";
+
+interface SynapseLinkState {
+  isSynapseLinkUpdating: boolean;
+  setIsSynapseLinkUpdating: (isSynapseLinkUpdating: boolean) => void;
+}
+
+export const useSynapseLink: UseStore<SynapseLinkState> = create((set) => ({
+  isSynapseLinkUpdating: false,
+  setIsSynapseLinkUpdating: (isSynapseLinkUpdating: boolean) => set({ isSynapseLinkUpdating }),
+}));
@@ -52,8 +52,6 @@ import { ErrorBoundary } from "./Explorer/ErrorBoundary";
 import "./Explorer/Graph/GraphExplorerComponent/graphExplorer.less";
 import "./Explorer/Menus/CommandBar/CommandBarComponent.less";
 import { CommandBar } from "./Explorer/Menus/CommandBar/CommandBarComponentAdapter";
-import "./Explorer/Menus/CommandBar/ConnectionStatusComponent.less";
-import "./Explorer/Menus/CommandBar/MemoryTrackerComponent.less";
 import "./Explorer/Menus/NotificationConsole/NotificationConsole.less";
 import { NotificationConsole } from "./Explorer/Menus/NotificationConsole/NotificationConsoleComponent";
 import "./Explorer/Panes/PanelComponent.less";
@@ -1,256 +0,0 @@
-import { configContext } from "ConfigContext";
-import { useDialog } from "Explorer/Controls/Dialog";
-import { Action } from "Shared/Telemetry/TelemetryConstants";
-import { userContext } from "UserContext";
-import { allowedJunoOrigins, validateEndpoint } from "Utils/EndpointUtils";
-import promiseRetry, { AbortError, Options } from "p-retry";
-import {
-  Areas,
-  ConnectionStatusType,
-  ContainerStatusType,
-  HttpHeaders,
-  HttpStatusCodes,
-  Notebook,
-} from "../Common/Constants";
-import { getErrorMessage } from "../Common/ErrorHandlingUtils";
-import * as Logger from "../Common/Logger";
-import {
-  ContainerConnectionInfo,
-  ContainerInfo,
-  IContainerData,
-  IMaxAllocationTimeExceeded,
-  IPhoenixConnectionInfoResult,
-  IPhoenixError,
-  IPhoenixServiceInfo,
-  IProvisionData,
-  IResponse,
-  PhoenixErrorType,
-} from "../Contracts/DataModels";
-import { useNotebook } from "../Explorer/Notebook/useNotebook";
-import * as TelemetryProcessor from "../Shared/Telemetry/TelemetryProcessor";
-import { getAuthorizationHeader } from "../Utils/AuthorizationUtils";
-
-export class PhoenixClient {
-  private armResourceId: string;
-  private containerHealthHandler: NodeJS.Timeout;
-  private retryOptions: Options = {
-    retries: Notebook.retryAttempts,
-    maxTimeout: Notebook.retryAttemptDelayMs,
-    minTimeout: Notebook.retryAttemptDelayMs,
-  };
-  private abortController: AbortController;
-  private abortSignal: AbortSignal;
-
-  constructor(armResourceId: string) {
-    this.armResourceId = armResourceId;
-  }
-
-  public async allocateContainer(provisionData: IProvisionData): Promise<IResponse<IPhoenixServiceInfo>> {
-    this.initializeCancelEventListener();
-
-    return promiseRetry(() => this.executeContainerAssignmentOperation(provisionData, "allocate"), {
-      retries: 4,
-      maxTimeout: 20000,
-      minTimeout: 20000,
-      signal: this.abortSignal,
-    });
-  }
-
-  public async resetContainer(provisionData: IProvisionData): Promise<IResponse<IPhoenixServiceInfo>> {
-    return this.executeContainerAssignmentOperation(provisionData, "reset");
-  }
-
-  private async executeContainerAssignmentOperation(
-    provisionData: IProvisionData,
-    operation: string,
-  ): Promise<IResponse<IPhoenixServiceInfo>> {
-    let response;
-    try {
-      response = await fetch(`${this.getPhoenixControlPlanePathPrefix()}/containerconnections/multicontainer`, {
-        method: operation === "allocate" ? "POST" : "PATCH",
-        headers: PhoenixClient.getHeaders(),
-        body: JSON.stringify(provisionData),
-      });
-      const responseJson = await response?.json();
-      if (response.ok) {
-        const phoenixConnectionInfoResult = responseJson as IPhoenixConnectionInfoResult[];
-        if (
-          !phoenixConnectionInfoResult ||
-          phoenixConnectionInfoResult.length === 0 ||
-          !phoenixConnectionInfoResult[0]
-        ) {
-          throw new Error("Received invalid phoenix connection response.");
-        }
-        return {
-          status: response.status,
-          data: phoenixConnectionInfoResult[0].phoenixServiceInfo,
-        };
-      }
-      const phoenixError = responseJson as IPhoenixError;
-      if (response.status === HttpStatusCodes.Forbidden) {
-        if (phoenixError.message === "Sequence contains no elements") {
-          throw Error("Phoenix container allocation failed, please try again later.");
-        }
-        throw new AbortError(this.ConvertToForbiddenErrorString(phoenixError));
-      }
-      throw new AbortError(phoenixError.message);
-    } catch (error) {
-      error.status = response?.status;
-      throw error;
-    }
-  }
-
-  public async initiateContainerHeartBeat(shouldUseNotebookStates: boolean, containerData: IContainerData) {
-    if (this.containerHealthHandler) {
-      clearTimeout(this.containerHealthHandler);
-    }
-    await this.getContainerHealth(shouldUseNotebookStates, Notebook.containerStatusHeartbeatDelayMs, containerData);
-  }
-
-  private scheduleContainerHeartbeat(
-    shouldUseNotebookStates: boolean,
-    delayMs: number,
-    containerData: IContainerData,
-  ): void {
-    this.containerHealthHandler = setTimeout(async () => {
-      await this.getContainerHealth(shouldUseNotebookStates, delayMs, containerData);
-    }, delayMs);
-  }
-
-  private async getContainerStatusAsync(
-    shouldUseNotebookStates: boolean,
-    containerData: IContainerData,
-  ): Promise<ContainerInfo> {
-    try {
-      const runContainerStatusAsync = async () => {
-        const response = await window.fetch(
-          `${this.getPhoenixControlPlanePathPrefix()}/${containerData.forwardingId}`,
-          {
-            method: "GET",
-            headers: PhoenixClient.getHeaders(),
-          },
-        );
-        if (response.status === HttpStatusCodes.OK) {
-          const containerStatus = await response.json();
-          return {
-            durationLeftInMinutes: containerStatus?.durationLeftInMinutes,
-            phoenixServerInfo: containerStatus?.phoenixServerInfo,
-            status: ContainerStatusType.Active,
-          };
-        } else if (response.status === HttpStatusCodes.NotFound) {
-          const error = "Disconnected from compute workspace";
-          Logger.logError(error, "");
-          const connectionStatus: ContainerConnectionInfo = {
-            status: ConnectionStatusType.Reconnect,
-          };
-          TelemetryProcessor.traceMark(Action.PhoenixHeartBeat, {
-            dataExplorerArea: Areas.Notebook,
-            message: getErrorMessage(error),
-          });
-          shouldUseNotebookStates ? useNotebook.getState().resetContainerConnection(connectionStatus) : undefined;
-          shouldUseNotebookStates && useNotebook.getState().setIsRefreshed(!useNotebook.getState().isRefreshed);
-          shouldUseNotebookStates &&
-            useDialog
-              .getState()
-              .showOkModalDialog(
-                "Disconnected",
-                "Disconnected from temporary workspace. Please click on connect button to connect to temporary workspace.",
-              );
-          throw new AbortError(response.statusText);
-        } else if (response?.status === HttpStatusCodes.Forbidden) {
-          const validationMessage = this.ConvertToForbiddenErrorString(await response.json());
-          if (validationMessage) {
-            useDialog.getState().showOkModalDialog("Connection Failed", `${validationMessage}`);
-          }
-          throw new AbortError(response.statusText);
-        }
-        throw new Error(response.statusText);
-      };
-      return await promiseRetry(runContainerStatusAsync, this.retryOptions);
-    } catch (error) {
-      TelemetryProcessor.traceFailure(Action.PhoenixHeartBeat, {
-        dataExplorerArea: Areas.Notebook,
-      });
-      Logger.logError(getErrorMessage(error), "");
-      const connectionStatus: ContainerConnectionInfo = {
-        status: ConnectionStatusType.Failed,
-      };
-      shouldUseNotebookStates ? useNotebook.getState().resetContainerConnection(connectionStatus) : undefined;
-      shouldUseNotebookStates && useNotebook.getState().setIsRefreshed(!useNotebook.getState().isRefreshed);
-      return {
-        durationLeftInMinutes: undefined,
-        phoenixServerInfo: undefined,
-        status: ContainerStatusType.Disconnected,
-      };
-    }
-  }
-
-  private async getContainerHealth(shouldUseNotebookStates: boolean, delayMs: number, containerData: IContainerData) {
-    const containerInfo = await this.getContainerStatusAsync(shouldUseNotebookStates, containerData);
-    shouldUseNotebookStates ? useNotebook.getState().setContainerStatus(containerInfo) : undefined;
-
-    const containerStatus = shouldUseNotebookStates ? useNotebook.getState().containerStatus?.status : undefined;
-    if (containerStatus === ContainerStatusType.Active) {
-      this.scheduleContainerHeartbeat(shouldUseNotebookStates, delayMs, containerData);
-    }
-  }
-
-  private getPhoenixControlPlanePathPrefix(): string {
-    if (!this.armResourceId) {
-      throw new Error("The Phoenix client was not initialized properly: missing ARM resource id");
-    }
-
-    const toolsEndpoint =
-      userContext.features.phoenixEndpoint ?? userContext.features.junoEndpoint ?? configContext.JUNO_ENDPOINT;
-
-    if (!validateEndpoint(toolsEndpoint, allowedJunoOrigins)) {
-      const error = `${toolsEndpoint} not allowed as tools endpoint`;
-      console.error(error);
-      throw new Error(error);
-    }
-
-    return `${toolsEndpoint}/api/controlplane/toolscontainer/cosmosaccounts${this.armResourceId}`;
-  }
-
-  private static getHeaders(): HeadersInit {
-    const authorizationHeader = getAuthorizationHeader();
-    return {
-      [authorizationHeader.header]: authorizationHeader.token,
-      [HttpHeaders.contentType]: "application/json",
-    };
-  }
-
-  private initializeCancelEventListener(): void {
-    this.abortController = new AbortController();
-    this.abortSignal = this.abortController.signal;
-
-    document.addEventListener("keydown", (event: KeyboardEvent) => {
-      if (event.ctrlKey && (event.key === "c" || event.key === "z")) {
-        this.abortController.abort(new AbortError("Request canceled"));
-      }
-    });
-  }
-
-  public ConvertToForbiddenErrorString(jsonData: IPhoenixError): string {
-    const errInfo = jsonData;
-    switch (errInfo?.type) {
-      case PhoenixErrorType.MaxAllocationTimeExceeded: {
-        const maxAllocationTimeExceeded = errInfo as IMaxAllocationTimeExceeded;
-        const allocateAfterTimestamp = new Date(maxAllocationTimeExceeded?.earliestAllocationTimestamp);
-        allocateAfterTimestamp.setDate(allocateAfterTimestamp.getDate() + 1);
-        return `${errInfo.message}` + ". Please try again after " + `${allocateAfterTimestamp.toLocaleString()}`;
-      }
-      case PhoenixErrorType.MaxDbAccountsPerUserExceeded:
-      case PhoenixErrorType.MaxUsersPerDbAccountExceeded:
-      case PhoenixErrorType.AllocationValidationResult:
-      case PhoenixErrorType.RegionNotServicable:
-      case PhoenixErrorType.UserMissingPermissionsError:
-      case PhoenixErrorType.SubscriptionNotAllowed: {
-        return `${errInfo.message}`;
-      }
-      default: {
-        return undefined;
-      }
-    }
-  }
-}
@@ -1,87 +0,0 @@
-import { getErrorMessage } from "../Common/ErrorHandlingUtils";
-import * as Logger from "../Common/Logger";
-import * as DataModels from "../Contracts/DataModels";
-
-interface KernelConnectionMetadata {
-  name: string;
-  configurationEndpoints: DataModels.NotebookConfigurationEndpoints;
-  notebookConnectionInfo: DataModels.NotebookWorkspaceConnectionInfo;
-}
-
-export const _configureServiceEndpoints = async (kernelMetadata: KernelConnectionMetadata): Promise<void> => {
-  if (!kernelMetadata) {
-    // should never get into this state
-    Logger.logWarning("kernel metadata is null or undefined", "NotebookConfigurationUtils/configureServiceEndpoints");
-    return;
-  }
-
-  const notebookConnectionInfo = kernelMetadata.notebookConnectionInfo;
-  const configurationEndpoints = kernelMetadata.configurationEndpoints;
-  if (notebookConnectionInfo && configurationEndpoints) {
-    try {
-      const headers: HeadersInit = { "Content-Type": "application/json" };
-      if (notebookConnectionInfo.authToken) {
-        headers["Authorization"] = `token ${notebookConnectionInfo.authToken}`;
-      }
-      const response = await fetch(`${notebookConnectionInfo.notebookServerEndpoint}/api/configureEndpoints`, {
-        method: "POST",
-        headers,
-        body: JSON.stringify(configurationEndpoints),
-      });
-      if (!response.ok) {
-        const responseMessage = await response.json();
-        Logger.logError(
-          getErrorMessage(responseMessage),
-          "NotebookConfigurationUtils/configureServiceEndpoints",
-          response.status,
-        );
-      }
-    } catch (error) {
-      Logger.logError(getErrorMessage(error), "NotebookConfigurationUtils/configureServiceEndpoints");
-    }
-  }
-};
-
-export const configureServiceEndpoints = async (
-  notebookPath: string,
-  notebookConnectionInfo: DataModels.NotebookWorkspaceConnectionInfo,
-  kernelName: string,
-  clusterConnectionInfo: DataModels.SparkClusterConnectionInfo,
-): Promise<void> => {
-  if (!notebookPath || !notebookConnectionInfo || !kernelName) {
-    Logger.logError(
-      "Invalid or missing notebook connection info/path",
-      "NotebookConfigurationUtils/configureServiceEndpoints",
-    );
-    return Promise.reject("Invalid or missing notebook connection info");
-  }
-
-  if (!clusterConnectionInfo || !clusterConnectionInfo.endpoints || clusterConnectionInfo.endpoints.length === 0) {
-    Logger.logError(
-      "Invalid or missing cluster connection info/endpoints",
-      "NotebookConfigurationUtils/configureServiceEndpoints",
-    );
-    return Promise.reject("Invalid or missing cluster connection info");
-  }
-
-  const notebookEndpointInfo: DataModels.NotebookConfigurationEndpointInfo[] = clusterConnectionInfo.endpoints.map(
-    (clusterEndpoint) => ({
-      type: clusterEndpoint.kind.toLowerCase(),
-      endpoint: clusterEndpoint && clusterEndpoint.endpoint,
-      username: clusterConnectionInfo.userName,
-      password: clusterConnectionInfo.password,
-      token: "", // TODO. This was arcadiaToken() when our synapse/spark integration comes back
-    }),
-  );
-  const configurationEndpoints: DataModels.NotebookConfigurationEndpoints = {
-    path: notebookPath,
-    endpoints: notebookEndpointInfo,
-  };
-  const kernelMetadata: KernelConnectionMetadata = {
-    configurationEndpoints,
-    notebookConnectionInfo,
-    name: kernelName,
-  };
-
-  return await _configureServiceEndpoints(kernelMetadata);
-};
@@ -83,12 +83,6 @@ export function useKnockoutExplorer(platform: Platform): Explorer {
  useEffect(() => {
    const effect = async () => {
      if (platform) {
-        //Updating phoenix feature flags for MPAC based of config context
-        if (configContext.isPhoenixEnabled === true) {
-          userContext.features.phoenixNotebooks = true;
-          userContext.features.phoenixFeatures = true;
-        }
-
        let explorer: Explorer;
        try {
          if (platform === Platform.Hosted) {
@@ -999,15 +993,6 @@ function updateContextsFromPortalMessage(inputs: DataExplorerInputsFrame) {
    if (inputs.flights.indexOf(Flights.PKPartitionKeyTest) !== -1) {
      userContext.features.partitionKeyDefault2 = true;
    }
-    if (inputs.flights.indexOf(Flights.PhoenixNotebooks) !== -1) {
-      userContext.features.phoenixNotebooks = true;
-    }
-    if (inputs.flights.indexOf(Flights.PhoenixFeatures) !== -1) {
-      userContext.features.phoenixFeatures = true;
-    }
-    if (inputs.flights.indexOf(Flights.NotebooksDownBanner) !== -1) {
-      userContext.features.notebooksDownBanner = true;
-    }
  }

  // Handle initial theme from portal
@@ -1,15 +0,0 @@
-import create, { UseStore } from "zustand";
-
-export interface NotebookSnapshotHooks {
-  snapshot?: string;
-  error?: string;
-  setSnapshot: (imageSrc: string) => void;
-  setError: (error: string) => void;
-}
-
-export const useNotebookSnapshotStore: UseStore<NotebookSnapshotHooks> = create((set) => ({
-  snapshot: undefined,
-  error: undefined,
-  setSnapshot: (imageSrc: string) => set((state) => ({ ...state, snapshot: imageSrc })),
-  setError: (error: string) => set((state) => ({ ...state, error })),
-}));
@@ -9,7 +9,6 @@ import {
 } from "Shared/AppStatePersistenceUtility";
 import create, { UseStore } from "zustand";
 import * as ViewModels from "../Contracts/ViewModels";
-import { CollectionTabKind } from "../Contracts/ViewModels";
 import TabsBase from "../Explorer/Tabs/TabsBase";

 export interface TabsState {
@@ -27,7 +26,6 @@ export interface TabsState {
  refreshActiveTab: (comparator: (tab: TabsBase) => boolean) => void;
  closeTabsByComparator: (comparator: (tab: TabsBase) => boolean) => void;
  closeTab: (tab: TabsBase) => void;
-  closeAllNotebookTabs: (hardClose: boolean) => void;
  openAndActivateReactTab: (tabKind: ReactTabKind) => void;
  closeReactTab: (tabKind: ReactTabKind) => void;
  setIsTabExecuting: (state: boolean) => void;
@@ -132,33 +130,6 @@ export const useTabs: UseStore<TabsState> = create((set, get) => ({

    get().persistTabsState();
  },
-  closeAllNotebookTabs: (): void => {
-    const isNotebook = (tabKind: CollectionTabKind): boolean => {
-      if (
-        tabKind === CollectionTabKind.Notebook ||
-        tabKind === CollectionTabKind.NotebookV2 ||
-        tabKind === CollectionTabKind.SchemaAnalyzer ||
-        tabKind === CollectionTabKind.Terminal
-      ) {
-        return true;
-      }
-      return false;
-    };
-
-    const tabList = get().openedTabs;
-    if (tabList && tabList.length > 0) {
-      tabList.forEach((tab: TabsBase) => {
-        const tabKind: CollectionTabKind = tab.tabKind;
-        if (tabKind && isNotebook(tabKind)) {
-          tab.onCloseTabButtonClick();
-        }
-      });
-
-      if (get().openedTabs.length === 0 && !isFabricMirrored()) {
-        set({ activeTab: undefined, activeReactTab: undefined });
-      }
-    }
-  },
  openAndActivateReactTab: (tabKind: ReactTabKind) => {
    if (get().openedReactTabs.indexOf(tabKind) === -1) {
      set((state) => ({
@@ -43,7 +43,6 @@
    "./src/Explorer/Graph/GraphExplorerComponent/GraphData.ts",
    "./src/Explorer/LazyMonaco.ts",
    "./src/Explorer/Menus/NotificationConsole/ConsoleData.tsx",
-    "./src/Explorer/Notebook/NotebookContentItem.ts",
    "./src/Explorer/OpenFullScreen.test.tsx",
    "./src/Explorer/OpenFullScreen.tsx",
    "./src/Explorer/Panes/PanelContainerComponent.test.tsx",
@@ -62,6 +61,7 @@
    "./src/Explorer/Tables/QueryBuilder/DateTimeUtilities.test.ts",
    "./src/Explorer/Tables/QueryBuilder/DateTimeUtilities.ts",
    "./src/Explorer/Tree/AccessibleVerticalList.ts",
+    "./src/Explorer/useSynapseLink.ts",
    "./src/HostedExplorerChildFrame.ts",
    "./src/Platform/Hosted/Components/MeControl.test.tsx",
    "./src/Platform/Hosted/Components/MeControl.tsx",
@@ -106,7 +106,6 @@
    "./src/hooks/useConfig.ts",
    "./src/hooks/useDirectories.tsx",
    "./src/hooks/useGraphPhoto.tsx",
-    "./src/hooks/useNotebookSnapshotStore.ts",
    "./src/hooks/usePortalAccessToken.tsx",
    "./src/hooks/useNotificationConsole.ts",
    "./src/hooks/useObservable.ts",