Updated on 2026-08-14

domain/manage-tokens/src/main/kotlin/com/tangem/domain/managetokens/CheckDerivationPathSupportedUseCase.kt

@@ -0,0 +1,37 @@
+package com.tangem.domain.managetokens
+
+import arrow.core.Either
+import arrow.core.left
+import arrow.core.right
+import com.tangem.domain.managetokens.repository.CustomTokensRepository
+import com.tangem.domain.models.network.Network
+import com.tangem.domain.models.wallet.UserWalletId
+import com.tangem.utils.coroutines.runSuspendCatching
+
+/**
+ * Checks whether the elliptic curve used by [networkId] for the [userWalletId] wallet supports the selected
+ * [derivationPath]. Used before adding a custom token to prevent adding a token with a derivation path that the
+ * network's curve cannot derive (e.g. an Algorand token with an EVM derivation path).
+ *
+ * Returns [Either.Right] with `true` when the derivation is supported, `false` otherwise. [Either.Left] is returned
+ * when the check itself fails unexpectedly.
+ */
+class CheckDerivationPathSupportedUseCase(
+    private val customTokensRepository: CustomTokensRepository,
+) {
+
+    suspend operator fun invoke(
+        userWalletId: UserWalletId,
+        networkId: Network.ID,
+        derivationPath: Network.DerivationPath,
+    ): Either<Throwable, Boolean> = runSuspendCatching {
+        customTokensRepository.isDerivationPathSupported(
+            userWalletId = userWalletId,
+            networkId = networkId,
+            derivationPath = derivationPath,
+        )
+    }.fold(
+        onSuccess = { it.right() },
+        onFailure = { it.left() },
+    )
+}

domain/manage-tokens/src/main/kotlin/com/tangem/domain/managetokens/repository/CustomTokensRepository.kt

@@ -43,5 +43,11 @@ interface CustomTokensRepository {
 
     suspend fun getSupportedNetworks(userWalletId: UserWalletId): List<Network>
 
+    suspend fun isDerivationPathSupported(
+        userWalletId: UserWalletId,
+        networkId: Network.ID,
+        derivationPath: Network.DerivationPath,
+    ): Boolean
+
     fun createDerivationPath(rawPath: String): Network.DerivationPath
 }