feat: add support for new asset picker

packages/bridge-controller/src/bridge-controller.sse.test.ts

@@ -118,6 +118,7 @@ describe('BridgeController SSE', function () {
           isActiveDest: true,
         },
       },
+      chainRanking: [{ chainId: 'eip155:1' as const, name: 'Ethereum' }],
     });
 
     bridgeController = new BridgeController({

packages/bridge-controller/src/bridge-controller.test.ts

@@ -2700,6 +2700,7 @@ describe('BridgeController', function () {
         enabled: true,
         minimumVersion: '13.8.0',
       },
+      chainRanking: [{ chainId: 'eip155:1' as const, name: 'Ethereum' }],
     };
 
     const quotesByDecreasingProcessingTime = [...mockBridgeQuotesSolErc20];

packages/bridge-controller/src/constants/bridge.ts

@@ -48,12 +48,30 @@ export const DEFAULT_MAX_REFRESH_COUNT = 5;
 
 export const BRIDGE_CONTROLLER_NAME = 'BridgeController';
 
+export const DEFAULT_CHAIN_RANKING = [
+  { chainId: 'eip155:1', name: 'Ethereum' },
+  { chainId: 'eip155:56', name: 'BNB' },
+  { chainId: 'bip122:000000000019d6689c085ae165831e93', name: 'BTC' },
+  { chainId: 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp', name: 'Solana' },
+  { chainId: 'tron:728126428', name: 'Tron' },
+  { chainId: 'eip155:8453', name: 'Base' },
+  { chainId: 'eip155:42161', name: 'Arbitrum' },
+  { chainId: 'eip155:59144', name: 'Linea' },
+  { chainId: 'eip155:137', name: 'Polygon' },
+  { chainId: 'eip155:43114', name: 'Avalanche' },
+  { chainId: 'eip155:10', name: 'Optimism' },
+  { chainId: 'eip155:143', name: 'Monad' },
+  { chainId: 'eip155:1329', name: 'Sei' },
+  { chainId: 'eip155:324', name: 'zkSync' },
+] as const;
+
 export const DEFAULT_FEATURE_FLAG_CONFIG: FeatureFlagsPlatformConfig = {
   minimumVersion: '0.0.0',
   refreshRate: REFRESH_INTERVAL_MS,
   maxRefreshCount: DEFAULT_MAX_REFRESH_COUNT,
   support: false,
   chains: {},
+  chainRanking: [...DEFAULT_CHAIN_RANKING],
 };
 
 export const DEFAULT_BRIDGE_CONTROLLER_STATE: BridgeControllerState = {

packages/bridge-controller/src/selectors.test.ts

@@ -256,7 +256,7 @@ describe('Bridge Selectors', () => {
             // eslint-disable-next-line @typescript-eslint/no-explicit-any
             ...(mockState.remoteFeatureFlags.bridgeConfig as any),
             chains: {
-              '1': {
+              'eip155:1': {
                 refreshRate: 41000,
                 isActiveSrc: true,
                 isActiveDest: true,
@@ -288,7 +288,7 @@ describe('Bridge Selectors', () => {
             // eslint-disable-next-line @typescript-eslint/no-explicit-any
             ...(mockState.remoteFeatureFlags.bridgeConfig as any),
             chains: {
-              '1': {
+              'eip155:1': {
                 refreshRate: 41000,
                 isActiveSrc: true,
                 isActiveDest: true,

packages/bridge-controller/src/types.ts

@@ -30,6 +30,7 @@ import type {
   BitcoinTradeDataSchema,
   BridgeAssetSchema,
   ChainConfigurationSchema,
+  ChainRankingSchema,
   FeatureId,
   FeeDataSchema,
   PlatformConfigSchema,
@@ -66,6 +67,8 @@ export enum AssetType {
 
 export type ChainConfiguration = Infer<typeof ChainConfigurationSchema>;
 
+export type ChainRanking = Infer<typeof ChainRankingSchema>;
+
 export type L1GasFees = {
   l1GasFeesInHexWei?: string; // l1 fees for approval and trade in hex wei, appended by BridgeController.#appendL1GasFees
 };

packages/bridge-controller/src/utils/feature-flags.test.ts

@@ -46,6 +46,7 @@ describe('feature-flags', () => {
             isActiveDest: true,
           },
         },
+        chainRanking: [],
       };
 
       const result = formatFeatureFlags(bridgeConfig);
@@ -95,6 +96,7 @@ describe('feature-flags', () => {
         support: true,
         minimumVersion: '0.0.0',
         chains: {},
+        chainRanking: [],
       };
 
       const result = formatFeatureFlags(bridgeConfig);
@@ -124,6 +126,7 @@ describe('feature-flags', () => {
             isActiveDest: false,
           },
         },
+        chainRanking: [],
       };
 
       const result = formatFeatureFlags(bridgeConfig);
@@ -373,6 +376,7 @@ describe('feature-flags', () => {
             isActiveDest: true,
           },
         },
+        chainRanking: [],
       };
 
       const bridgeConfig = {
@@ -386,6 +390,7 @@ describe('feature-flags', () => {
             isActiveDest: true,
           },
         },
+        chainRanking: [],
       };
 
       const remoteFeatureFlagControllerState = {
@@ -414,6 +419,7 @@ describe('feature-flags', () => {
             isActiveDest: true,
           },
         },
+        chainRanking: [],
       };
 
       expect(result).toStrictEqual(expectedBridgeConfig);
@@ -431,6 +437,7 @@ describe('feature-flags', () => {
             isActiveDest: true,
           },
         },
+        chainRanking: [],
       };
 
       const remoteFeatureFlagControllerState = {
@@ -458,6 +465,7 @@ describe('feature-flags', () => {
             isActiveDest: true,
           },
         },
+        chainRanking: [],
       };
 
       expect(result).toStrictEqual(expectedBridgeConfig);

packages/bridge-controller/src/utils/validators.test.ts

@@ -28,6 +28,7 @@ describe('validators', () => {
           refreshRate: 30000,
           support: true,
           minimumVersion: '0.0.0',
+          chainRanking: [{ chainId: 'eip155:1', name: 'Ethereum' }],
         },
         type: 'all evm chains active',
         expected: true,
@@ -39,6 +40,7 @@ describe('validators', () => {
           refreshRate: 3000000,
           support: false,
           minimumVersion: '0.0.0',
+          chainRanking: [],
         },
         type: 'bridge disabled',
         expected: true,
@@ -103,6 +105,7 @@ describe('validators', () => {
           refreshRate: 30000,
           support: true,
           minimumVersion: '0.0.0',
+          chainRanking: [{ chainId: 'eip155:1', name: 'Ethereum' }],
         },
         type: 'evm and solana chain config',
         expected: true,
@@ -200,6 +203,7 @@ describe('validators', () => {
           refreshRate: 30000,
           support: true,
           minimumVersion: '0.0.0',
+          chainRanking: [{ chainId: 'eip155:1', name: 'Ethereum' }],
         },
         type: 'evm and solana chain config + bip44 default pairs',
         expected: true,
@@ -227,6 +231,7 @@ describe('validators', () => {
             enabled: true,
             minimumVersion: '13.8.0',
           },
+          chainRanking: [{ chainId: 'eip155:1', name: 'Ethereum' }],
         },
         type: 'sse config',
         expected: true,
@@ -306,6 +311,7 @@ describe('validators', () => {
           support: true,
           minimumVersion: '0.0.0',
           extraField: 'foo',
+          chainRanking: [{ chainId: 'eip155:1', name: 'Ethereum' }],
         },
         type: 'all evm chains active + an extra field not specified in the schema',
         expected: true,

packages/bridge-controller/src/utils/validators.ts

@@ -17,7 +17,11 @@ import {
   pattern,
   intersection,
 } from '@metamask/superstruct';
-import { CaipAssetTypeStruct, isStrictHexString } from '@metamask/utils';
+import {
+  CaipAssetTypeStruct,
+  CaipChainIdStruct,
+  isStrictHexString,
+} from '@metamask/utils';
 
 export enum FeeType {
   METABRIDGE = 'metabridge',
@@ -101,6 +105,19 @@ const DefaultPairSchema = type({
   other: record(string(), string()),
 });
 
+export const ChainRankingItemSchema = type({
+  /**
+   * The CAIP-2 chain identifier (e.g., "eip155:1" for Ethereum mainnet)
+   */
+  chainId: CaipChainIdStruct,
+  /**
+   * The display name of the chain (e.g., "Ethereum Mainnet")
+   */
+  name: string(),
+});
+
+export const ChainRankingSchema = array(ChainRankingItemSchema);
+
 export const ChainConfigurationSchema = type({
   isActiveSrc: boolean(),
   isActiveDest: boolean(),
@@ -154,6 +171,10 @@ export const PlatformConfigSchema = type({
       minimumVersion: VersionStringSchema,
     }),
   ),
+  /**
+   * Array of chain objects ordered by preference/ranking
+   */
+  chainRanking: ChainRankingSchema,
 });
 
 export const validateFeatureFlagsResponse = (