Updated on 2026-08-14

app/src/main/java/com/tangem/tap/data/DefaultVisaAuthTokenStorage.kt

@@ -0,0 +1,54 @@
+package com.tangem.tap.data
+
+import android.content.Context
+import com.squareup.moshi.Moshi
+import com.squareup.moshi.kotlin.reflect.KotlinJsonAdapterFactory
+import com.tangem.common.services.secure.SecureStorage
+import com.tangem.datasource.local.visa.VisaAuthTokenStorage
+import com.tangem.domain.visa.model.VisaAuthTokens
+import com.tangem.sdk.storage.AndroidSecureStorage
+import com.tangem.sdk.storage.createEncryptedSharedPreferences
+import com.tangem.utils.coroutines.CoroutineDispatcherProvider
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.withContext
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+internal class DefaultVisaAuthTokenStorage @Inject constructor(
+    @ApplicationContext applicationContext: Context,
+    private val dispatcherProvider: CoroutineDispatcherProvider,
+) : VisaAuthTokenStorage {
+
+    private val secureStorage = AndroidSecureStorage(
+        preferences = SecureStorage.createEncryptedSharedPreferences(
+            context = applicationContext,
+            storageName = "visa_auth_storage",
+        ),
+    )
+
+    private val moshi = Moshi.Builder()
+        .add(KotlinJsonAdapterFactory())
+        .build()
+
+    private val tokensAdapter = moshi.adapter(VisaAuthTokens::class.java)
+
+    override suspend fun store(tokens: VisaAuthTokens) = withContext(dispatcherProvider.io) {
+        val json = tokensAdapter.toJson(tokens)
+
+        secureStorage.store(
+            json.encodeToByteArray(throwOnInvalidSequence = true),
+            VISA_AUTH_TOKENS_KEY,
+        )
+    }
+
+    override suspend fun get(): VisaAuthTokens? = withContext(dispatcherProvider.io) {
+        secureStorage.get(VISA_AUTH_TOKENS_KEY)
+            ?.decodeToString(throwOnInvalidSequence = true)
+            ?.let(tokensAdapter::fromJson)
+    }
+
+    private companion object {
+        const val VISA_AUTH_TOKENS_KEY = "visa_auth_tokens"
+    }
+}