done

frontend/mobile/app.config.ts

@@ -0,0 +1,33 @@
+import { ExpoConfig, ConfigContext } from 'expo/config';
+
+export default ({ config }: ConfigContext): ExpoConfig => ({
+  ...config,
+  name: config.name ?? 'Veil',
+  slug: config.slug ?? 'veil-mobile',
+  extra: {
+    ...config.extra,
+    NEXT_PUBLIC_HORIZON_URL: process.env.NEXT_PUBLIC_HORIZON_URL || process.env.EXPO_PUBLIC_HORIZON_URL,
+    NEXT_PUBLIC_SOROBAN_RPC_URL: process.env.NEXT_PUBLIC_SOROBAN_RPC_URL || process.env.EXPO_PUBLIC_SOROBAN_RPC_URL,
+    NEXT_PUBLIC_RPC_URL: process.env.NEXT_PUBLIC_RPC_URL || process.env.EXPO_PUBLIC_RPC_URL,
+    NEXT_PUBLIC_FACTORY_CONTRACT_ID_TESTNET:
+      process.env.NEXT_PUBLIC_FACTORY_CONTRACT_ID_TESTNET || process.env.EXPO_PUBLIC_FACTORY_CONTRACT_ID_TESTNET,
+    NEXT_PUBLIC_FACTORY_CONTRACT_ID:
+      process.env.NEXT_PUBLIC_FACTORY_CONTRACT_ID || process.env.EXPO_PUBLIC_FACTORY_CONTRACT_ID,
+    NEXT_PUBLIC_MAINNET_RPC_URL: process.env.NEXT_PUBLIC_MAINNET_RPC_URL || process.env.EXPO_PUBLIC_MAINNET_RPC_URL,
+    NEXT_PUBLIC_FACTORY_CONTRACT_ID_MAINNET:
+      process.env.NEXT_PUBLIC_FACTORY_CONTRACT_ID_MAINNET || process.env.EXPO_PUBLIC_FACTORY_CONTRACT_ID_MAINNET,
+    NEXT_PUBLIC_NETWORK: process.env.NEXT_PUBLIC_NETWORK || process.env.EXPO_PUBLIC_NETWORK,
+
+    EXPO_PUBLIC_HORIZON_URL: process.env.EXPO_PUBLIC_HORIZON_URL || process.env.NEXT_PUBLIC_HORIZON_URL,
+    EXPO_PUBLIC_SOROBAN_RPC_URL: process.env.EXPO_PUBLIC_SOROBAN_RPC_URL || process.env.NEXT_PUBLIC_SOROBAN_RPC_URL,
+    EXPO_PUBLIC_RPC_URL: process.env.EXPO_PUBLIC_RPC_URL || process.env.NEXT_PUBLIC_RPC_URL,
+    EXPO_PUBLIC_FACTORY_CONTRACT_ID_TESTNET:
+      process.env.EXPO_PUBLIC_FACTORY_CONTRACT_ID_TESTNET || process.env.NEXT_PUBLIC_FACTORY_CONTRACT_ID_TESTNET,
+    EXPO_PUBLIC_FACTORY_CONTRACT_ID:
+      process.env.EXPO_PUBLIC_FACTORY_CONTRACT_ID || process.env.NEXT_PUBLIC_FACTORY_CONTRACT_ID,
+    EXPO_PUBLIC_MAINNET_RPC_URL: process.env.EXPO_PUBLIC_MAINNET_RPC_URL || process.env.NEXT_PUBLIC_MAINNET_RPC_URL,
+    EXPO_PUBLIC_FACTORY_CONTRACT_ID_MAINNET:
+      process.env.EXPO_PUBLIC_FACTORY_CONTRACT_ID_MAINNET || process.env.NEXT_PUBLIC_FACTORY_CONTRACT_ID_MAINNET,
+    EXPO_PUBLIC_NETWORK: process.env.EXPO_PUBLIC_NETWORK || process.env.NEXT_PUBLIC_NETWORK,
+  },
+});

frontend/mobile/lib/network.ts

@@ -0,0 +1,74 @@
+import Constants from 'expo-constants'
+import { Asset, Networks } from '@stellar/stellar-sdk'
+import type { WalletConfig } from '@veil/sdk'
+
+export type VeilNetworkName = 'testnet' | 'mainnet'
+
+export type VeilNetwork = {
+  name: VeilNetworkName
+  displayName: string
+  networkPassphrase: string
+  horizonUrl: string
+  rpcUrl: string
+  factoryContractId: string
+  friendbotUrl: string | null
+}
+
+const extra = Constants.expoConfig?.extra || (Constants as any).manifest?.extra || {}
+
+function getEnvVar(key: string, altKey?: string): string | undefined {
+  const val = extra[key] ?? (altKey ? extra[altKey] : undefined)
+  return typeof val === 'string' ? val : undefined
+}
+
+export const NETWORKS: Record<VeilNetworkName, VeilNetwork> = {
+  testnet: {
+    name: 'testnet',
+    displayName: 'Stellar Testnet',
+    networkPassphrase: Networks.TESTNET,
+    horizonUrl: getEnvVar('NEXT_PUBLIC_HORIZON_URL', 'EXPO_PUBLIC_HORIZON_URL')?.trim() || 'https://horizon-testnet.stellar.org',
+    rpcUrl:
+      getEnvVar('NEXT_PUBLIC_SOROBAN_RPC_URL', 'EXPO_PUBLIC_SOROBAN_RPC_URL')?.trim()
+      || getEnvVar('NEXT_PUBLIC_RPC_URL', 'EXPO_PUBLIC_RPC_URL')?.trim()
+      || 'https://soroban-testnet.stellar.org',
+    factoryContractId:
+      getEnvVar('NEXT_PUBLIC_FACTORY_CONTRACT_ID_TESTNET', 'EXPO_PUBLIC_FACTORY_CONTRACT_ID_TESTNET')?.trim()
+      || getEnvVar('NEXT_PUBLIC_FACTORY_CONTRACT_ID', 'EXPO_PUBLIC_FACTORY_CONTRACT_ID')?.trim()
+      || '',
+    friendbotUrl: 'https://friendbot.stellar.org',
+  },
+  mainnet: {
+    name: 'mainnet',
+    displayName: 'Stellar Mainnet',
+    networkPassphrase: Networks.PUBLIC,
+    horizonUrl: 'https://horizon.stellar.org',
+    rpcUrl: getEnvVar('NEXT_PUBLIC_MAINNET_RPC_URL', 'EXPO_PUBLIC_MAINNET_RPC_URL')?.trim() || '',
+    factoryContractId: getEnvVar('NEXT_PUBLIC_FACTORY_CONTRACT_ID_MAINNET', 'EXPO_PUBLIC_FACTORY_CONTRACT_ID_MAINNET')?.trim() || '',
+    friendbotUrl: null,
+  },
+}
+
+export function getNetwork(): VeilNetwork {
+  return getEnvVar('NEXT_PUBLIC_NETWORK', 'EXPO_PUBLIC_NETWORK') === 'mainnet'
+    ? NETWORKS.mainnet
+    : NETWORKS.testnet
+}
+
+export const walletConfig: WalletConfig = {
+  factoryAddress: getNetwork().factoryContractId,
+  rpcUrl: getNetwork().rpcUrl,
+  networkPassphrase: getNetwork().networkPassphrase,
+}
+
+export function getNativeAssetContractId(): string {
+  return Asset.native().contractId(getNetwork().networkPassphrase)
+}
+
+export function buildFriendbotUrl(address: string): string | null {
+  const friendbotUrl = getNetwork().friendbotUrl
+  if (!friendbotUrl) return null
+
+  const url = new URL(friendbotUrl)
+  url.searchParams.set('addr', address)
+  return url.toString()
+}

frontend/mobile/tests/network.test.ts

@@ -0,0 +1,46 @@
+import assert from 'node:assert'
+import {
+  NETWORKS,
+  getNetwork,
+  walletConfig,
+  getNativeAssetContractId,
+  buildFriendbotUrl,
+} from '../lib/network'
+
+function testNetworkDefaults() {
+  const net = getNetwork()
+  assert.strictEqual(net.name, 'testnet')
+  assert.strictEqual(net.displayName, 'Stellar Testnet')
+  assert.strictEqual(net.horizonUrl, 'https://horizon-testnet.stellar.org')
+  assert.strictEqual(net.rpcUrl, 'https://soroban-testnet.stellar.org')
+  assert.strictEqual(net.friendbotUrl, 'https://friendbot.stellar.org')
+}
+
+function testWalletConfig() {
+  assert.notStrictEqual(walletConfig.factoryAddress, undefined)
+  assert.strictEqual(walletConfig.rpcUrl, 'https://soroban-testnet.stellar.org')
+  assert.strictEqual(walletConfig.networkPassphrase, NETWORKS.testnet.networkPassphrase)
+}
+
+function testGetNativeAssetContractId() {
+  const contractId = getNativeAssetContractId()
+  assert.strictEqual(typeof contractId, 'string')
+  assert.ok(contractId.length > 0)
+}
+
+function testBuildFriendbotUrl() {
+  const testAddr = 'GD5DJ67Z7M4Y'
+  const url = buildFriendbotUrl(testAddr)
+  assert.strictEqual(url, `https://friendbot.stellar.org/?addr=${encodeURIComponent(testAddr)}`)
+  assert.strictEqual(NETWORKS.mainnet.friendbotUrl, null)
+}
+
+function runAllTests() {
+  testNetworkDefaults()
+  testWalletConfig()
+  testGetNativeAssetContractId()
+  testBuildFriendbotUrl()
+  console.log('All mobile network tests passed successfully!')
+}
+
+runAllTests()

frontend/mobile/tsconfig.json

@@ -2,13 +2,20 @@
   "extends": "expo/tsconfig.base",
   "compilerOptions": {
     "strict": true,
+    "ignoreDeprecations": "6.0",
+    "baseUrl": ".",
     "paths": {
       "@/*": [
         "./app/*"
       ],
       "@/assets/*": [
         "./assets/*"
-      ]
+      ],
+      "@veil/sdk": [
+        "../../sdk/src/useInvisibleWallet"
+      ],
+      "react": ["./node_modules/@types/react"],
+      "@stellar/stellar-sdk": ["./node_modules/@stellar/stellar-sdk"]
     }
   },
   "include": [