fix: check deployed contracts in isMigrationToL2Possible

src/services/contracts/__tests__/safeContracts.test.ts

@@ -1,5 +1,11 @@
 import { ImplementationVersionState } from '@safe-global/safe-gateway-typescript-sdk'
-import { _getValidatedGetContractProps, isValidMasterCopy, _getMinimumMultiSendCallOnlyVersion } from '../safeContracts'
+import {
+  _getValidatedGetContractProps,
+  isValidMasterCopy,
+  _getMinimumMultiSendCallOnlyVersion,
+  isMigrationToL2Possible,
+} from '../safeContracts'
+import { safeInfoBuilder } from '@/tests/builders/safe'
 
 describe('safeContracts', () => {
   describe('isValidMasterCopy', () => {
@@ -63,4 +69,18 @@ describe('safeContracts', () => {
       expect(_getMinimumMultiSendCallOnlyVersion('1.4.1')).toBe('1.4.1')
     })
   })
+
+  describe('isMigrationToL2Possible', () => {
+    it('should not be possible to migrate Safes on chains without migration lib', () => {
+      expect(isMigrationToL2Possible(safeInfoBuilder().with({ nonce: 0, chainId: '69420' }).build())).toBeFalsy()
+    })
+
+    it('should not be possible to migrate Safes with nonce > 0', () => {
+      expect(isMigrationToL2Possible(safeInfoBuilder().with({ nonce: 2, chainId: '10' }).build())).toBeFalsy()
+    })
+
+    it('should be possible to migrate Safes with nonce 0 on chains with migration lib', () => {
+      expect(isMigrationToL2Possible(safeInfoBuilder().with({ nonce: 0, chainId: '10' }).build())).toBeTruthy()
+    })
+  })
 })

src/services/contracts/safeContracts.ts

@@ -15,6 +15,7 @@ import type { SafeVersion } from '@safe-global/safe-core-sdk-types'
 import { assertValidSafeVersion, getSafeSDK } from '@/hooks/coreSDK/safeCoreSDK'
 import semver from 'semver'
 import { getLatestSafeVersion } from '@/utils/chains'
+import { getSafeToL2MigrationDeployment } from '@safe-global/safe-deployments'
 
 // `UNKNOWN` is returned if the mastercopy does not match supported ones
 // @see https://github.com/safe-global/safe-client-gateway/blob/main/src/routes/safes/handlers/safes.rs#L28-L31
@@ -24,7 +25,10 @@ export const isValidMasterCopy = (implementationVersionState: SafeInfo['implemen
 }
 
 export const isMigrationToL2Possible = (safe: SafeInfo): boolean => {
-  return safe.nonce === 0
+  return (
+    safe.nonce === 0 &&
+    Boolean(getSafeToL2MigrationDeployment({ network: safe.chainId })?.networkAddresses[safe.chainId])
+  )
 }
 
 export const _getValidatedGetContractProps = (