fix: integrate multichainAssetsController

app/scripts/constants/sentry-state.ts

@@ -100,6 +100,10 @@ export const SENTRY_BACKGROUND_STATE = {
   MultichainBalancesController: {
     balances: false,
   },
+  MultichainAssetsController: {
+    accountsAssets: false,
+    assetsMetadata: false,
+  },
   BridgeController: {
     bridgeState: {
       bridgeFeatureFlags: {

app/scripts/metamask-controller.js

@@ -14,6 +14,7 @@ import {
   fetchMultiExchangeRate,
   TokenBalancesController,
   MultichainBalancesController,
+  MultichainAssetsController,
 } from '@metamask/assets-controllers';
 import { JsonRpcEngine } from '@metamask/json-rpc-engine';
 import { createEngineStream } from '@metamask/json-rpc-middleware-stream';
@@ -785,6 +786,27 @@ export default class MetamaskController extends EventEmitter {
       disabled: !this.preferencesController.state.useNftDetection,
     });
 
+    const multichainAssetsControllerMessenger =
+      this.controllerMessenger.getRestricted({
+        name: 'MultichainAssetsController',
+        allowedEvents: [
+          'AccountsController:accountAdded',
+          'AccountsController:accountRemoved',
+          'AccountsController:accountAssetListUpdated',
+        ],
+        allowedActions: [
+          'SnapController:handleRequest',
+          'SnapController:getAll',
+          'PermissionController:getPermissions',
+          'AccountsController:listMultichainAccounts',
+        ],
+      });
+
+    this.multichainAssetsController = new MultichainAssetsController({
+      state: initState.MultichainAssetsController,
+      messenger: multichainAssetsControllerMessenger,
+    });
+
     const metaMetricsControllerMessenger =
       this.controllerMessenger.getRestricted({
         name: 'MetaMetricsController',
@@ -2271,6 +2293,7 @@ export default class MetamaskController extends EventEmitter {
       AppStateController: this.appStateController,
       AppMetadataController: this.appMetadataController,
       MultichainBalancesController: this.multichainBalancesController,
+      MultichainAssetsController: this.multichainAssetsController,
       ///: BEGIN:ONLY_INCLUDE_IF(build-flask)
       MultichainTransactionsController: this.multichainTransactionsController,
       ///: END:ONLY_INCLUDE_IF
@@ -2324,6 +2347,7 @@ export default class MetamaskController extends EventEmitter {
         AppStateController: this.appStateController,
         AppMetadataController: this.appMetadataController,
         MultichainBalancesController: this.multichainBalancesController,
+        MultichainAssetsController: this.multichainAssetsController,
         ///: BEGIN:ONLY_INCLUDE_IF(build-flask)
         MultichainTransactionsController: this.multichainTransactionsController,
         ///: END:ONLY_INCLUDE_IF

test/e2e/tests/metrics/state-snapshots/errors-after-init-opt-in-background-state.json

@@ -142,6 +142,10 @@
     "metaMetricsDataDeletionId": null,
     "metaMetricsDataDeletionTimestamp": 0
   },
+  "MultichainAssetsController": {
+    "accountsAssets": "object",
+    "assetsMetadata": "object"
+  },
   "MultichainBalancesController": { "balances": "object" },
   "MultichainRatesController": {
     "fiatCurrency": "usd",

test/e2e/tests/metrics/state-snapshots/errors-after-init-opt-in-ui-state.json

@@ -291,6 +291,8 @@
     "cacheTimestamp": "number",
     "accounts": "object",
     "accountsByChainId": "object",
+    "accountsAssets": "object",
+    "assetsMetadata": "object",
     "marketData": "object",
     "unapprovedDecryptMsgs": "object",
     "unapprovedDecryptMsgCount": 0,

ui/selectors/assets.ts

@@ -0,0 +1,25 @@
+import { MultichainAssetsControllerState } from '@metamask/assets-controllers';
+
+export type AssetsState = {
+  metamask: MultichainAssetsControllerState;
+};
+
+/**
+ * Gets non-EVM accounts assets.
+ *
+ * @param state - Redux state object.
+ * @returns An object containing non-EVM assets per accounts.
+ */
+export function getAccountAssets(state: AssetsState) {
+  return state.metamask.accountsAssets;
+}
+
+/**
+ * Gets non-EVM assets metadata.
+ *
+ * @param state - Redux state object.
+ * @returns An object containing non-EVM assets metadata per asset types (CAIP-19).
+ */
+export function getAssetsMetadata(state: AssetsState) {
+  return state.metamask.assetsMetadata;
+}