Export function to detect if wallet plugin is installed

src/index.ts

@@ -66,3 +66,9 @@ export { MassaStationAccount } from './massaStation/MassaStationAccount';
 export { providers, ProvidersListener } from './providersManager';
 
 export { connectBearby, disconnectBearby } from './bearbyWallet/BearbyConnect';
+
+export {
+  isMassaStationAvailable,
+  isMassaWalletInstalled,
+  isMassaWalletEnabled,
+} from './massaStation/MassaStationDiscovery';

src/massaStation/MassaStationAccount.ts

@@ -22,11 +22,6 @@
 import { encode as base58Encode } from 'bs58check';
 import { ExecuteFunctionBody } from './types';
 
-/**
- * The maximum allowed gas for a read operation
- */
-const MAX_READ_BLOCK_GAS = BigInt(4_294_967_295);
-
 /**
  * This interface represents the the individual wallet's final and pending balances returned by MassaStation
  */
@@ -109,7 +104,7 @@
         `${MASSA_STATION_URL}massa/addresses?attributes=balance&addresses=${this._address}`,
       );
     } catch (ex) {
       console.error(`MassaStation account balance error`);
       throw ex;
     }
     if (signOpResponse.isError || signOpResponse.error) {
@@ -149,7 +144,7 @@
         signData,
       );
     } catch (ex) {
       console.error(`MassaStation account signing error`);
       throw ex;
     }
 
@@ -360,11 +355,11 @@
   ): Promise<IContractReadOperationResponse> {
     const node = await this.getNodeUrlFromMassaStation();
     // Gas amount check
-    if (maxGas > MAX_READ_BLOCK_GAS) {
+    if (maxGas > MAX_GAS_CALL) {
       throw new Error(
         `
         The gas submitted ${maxGas.toString()} exceeds the max. allowed block gas of 
-        ${MAX_READ_BLOCK_GAS.toString()}
+        ${MAX_GAS_CALL.toString()}
         `,
       );
     }

src/massaStation/MassaStationDiscovery.ts

@@ -1,30 +1,55 @@
-import { getRequest } from './RequestHandler';
-import { PluginManagerBody } from './types';
-
-/**
- * Url used for the MassaStation discovery and pinging the MassaStation server's index.html
- */
-export const MASSA_STATION_DISCOVERY_URL =
-  'https://station.massa/plugin-manager';
-
-const MS_WALLET_PLUGIN_NAME = 'Massa Wallet';
-const MS_WALLET_PLUGIN_AUTHOR = 'Massa Labs';
-// timeout
+import { JsonRpcResponseData, getRequest } from './RequestHandler';
+import { PluginInfo } from './types';
+
+// Constants for URLs and plugin information
+const MASSA_STATION_URL = 'https://station.massa/plugin-manager';
+const PLUGIN_NAME = 'Massa Wallet';
+const PLUGIN_AUTHOR = 'Massa Labs';
 const TIMEOUT = 2000;
 
-export async function isMassaStationInstalled(): Promise<boolean> {
-  const response = await getRequest<PluginManagerBody>(
-    MASSA_STATION_DISCOVERY_URL,
-    TIMEOUT,
+async function fetchPluginData(): Promise<JsonRpcResponseData<PluginInfo[]>> {
+  return getRequest<PluginInfo[]>(MASSA_STATION_URL, TIMEOUT);
+}
+
+function findWalletPlugin(plugins: PluginInfo[]): PluginInfo | undefined {
+  return plugins.find(
+    (plugin) => plugin.name === PLUGIN_NAME && plugin.author === PLUGIN_AUTHOR,
   );
+}
+
+export async function isMassaStationAvailable(): Promise<boolean> {
+  const response = await fetchPluginData();
+  return !response.isError;
+}
+
+export async function isMassaWalletInstalled(): Promise<boolean> {
+  const response = await fetchPluginData();
+  if (response.isError) return false;
+  return Boolean(findWalletPlugin(response.result));
+}
 
+export async function isMassaWalletEnabled(): Promise<boolean> {
+  const response = await fetchPluginData();
+
+  if (response.isError) return false;
+
+  const walletPlugin = findWalletPlugin(response.result);
+  return walletPlugin && walletPlugin.status === 'UP';
+}
+
+export async function isMassaStationAndWalletPluginInstalled(): Promise<boolean> {
+  const response = await fetchPluginData();
   if (response.isError) {
+    console.warn('Massa Station plugin data fetch error.');
     return false;
   }
 
-  const isMassaStation = (module) =>
-    module.name === MS_WALLET_PLUGIN_NAME &&
-    module.author === MS_WALLET_PLUGIN_AUTHOR;
+  const walletPlugin = findWalletPlugin(response.result);
+
+  if (!walletPlugin) {
+    console.warn('Massa Wallet plugin is not installed.');
+    return false;
+  }
 
-  return !!response.result.find(isMassaStation);
+  return true;
 }

src/providersManager/providerList.ts

@@ -1,6 +1,6 @@
 import { web3 } from '@hicaru/bearby.js';
 import { BearbyProvider } from '../bearbyWallet/BearbyProvider';
-import { isMassaStationInstalled } from '../massaStation/MassaStationDiscovery';
+import { isMassaStationAndWalletPluginInstalled } from '../massaStation/MassaStationDiscovery';
 import { MassaStationProvider } from '../massaStation/MassaStationProvider';
 import { IProvider } from '../provider/IProvider';
 
@@ -20,7 +20,7 @@ export const providerList: ProviderList[] = [
   },
   {
     name: 'MASSA_STATION',
-    checkInstalled: isMassaStationInstalled,
+    checkInstalled: isMassaStationAndWalletPluginInstalled,
     createInstance: () => new MassaStationProvider(),
     isInstalled: false,
   },