Updated on 2026-08-14

app/src/main/java/com/tangem/tap/persistence/PreferencesStorage.kt

@@ -16,6 +16,7 @@ class PreferencesStorage(applicationContext: Application) {
     val usedCardsPrefStorage: UsedCardsPrefStorage
     val fiatCurrenciesPrefStorage: FiatCurrenciesPrefStorage
     val disclaimerPrefStorage: DisclaimerPrefStorage
+    val toppedUpWalletStorage: ToppedUpWalletStorage
 
     init {
         incrementLaunchCounter()
@@ -25,6 +26,7 @@ class PreferencesStorage(applicationContext: Application) {
         fiatCurrenciesPrefStorage = FiatCurrenciesPrefStorage(preferences, MoshiJsonConverter.INSTANCE)
         fiatCurrenciesPrefStorage.migrate()
         disclaimerPrefStorage = DisclaimerPrefStorage(preferences)
+        toppedUpWalletStorage = ToppedUpWalletStorage(preferences, MoshiJsonConverter.INSTANCE)
     }
 
     var chatFirstLaunchTime: Long?

app/src/main/java/com/tangem/tap/persistence/ToppedUpWalletStorage.kt

@@ -0,0 +1,57 @@
+package com.tangem.tap.persistence
+
+import android.content.SharedPreferences
+import androidx.core.content.edit
+import com.tangem.common.json.MoshiJsonConverter
+import com.tangem.tap.common.analytics.filters.BasicTopUpFilter
+import timber.log.Timber
+
+/**
+[REDACTED_AUTHOR]
+ */
+class ToppedUpWalletStorage(
+    private val preferences: SharedPreferences,
+    private val jsonConverter: MoshiJsonConverter,
+) {
+
+    private val walletList: MutableSet<BasicTopUpFilter.Data> = mutableSetOf()
+
+    init {
+        walletList.addAll(restore())
+    }
+
+    fun save(userWalletInfo: BasicTopUpFilter.Data): Boolean {
+        walletList.removeAll { it.walletId == userWalletInfo.walletId }
+        walletList.add(userWalletInfo)
+        return save(walletList)
+    }
+
+    fun restore(walletId: String): BasicTopUpFilter.Data? {
+        return walletList.firstOrNull { it.walletId == walletId }
+    }
+
+    private fun save(userWallets: MutableSet<BasicTopUpFilter.Data>): Boolean {
+        return try {
+            val json = jsonConverter.toJson(userWallets)
+            preferences.edit(true) { putString(KEY, json) }
+            true
+        } catch (ex: Exception) {
+            Timber.e(ex)
+            false
+        }
+    }
+
+    private fun restore(): MutableSet<BasicTopUpFilter.Data> {
+        val json = preferences.getString(KEY, null) ?: return mutableSetOf()
+        return try {
+            jsonConverter.fromJson(json, jsonConverter.typedList(BasicTopUpFilter.Data::class.java))!!
+        } catch (ex: Exception) {
+            preferences.edit(true) { remove(KEY) }
+            mutableSetOf()
+        }
+    }
+
+    companion object {
+        private const val KEY = "userWalletsInfo"
+    }
+}