Updated on 2026-08-14

libs/crypto/src/main/java/com/tangem/lib/crypto/TxHistoryManager.kt

@@ -0,0 +1,18 @@
+package com.tangem.lib.crypto
+
+import com.tangem.lib.crypto.models.txhistory.ProxyTransactionHistoryItem
+import com.tangem.lib.crypto.models.txhistory.ProxyTransactionHistoryState
+
+interface TxHistoryManager {
+
+    @Throws(IllegalStateException::class)
+    suspend fun checkTxHistoryState(networkId: String, derivationPath: String?): ProxyTransactionHistoryState
+
+    @Throws(IllegalStateException::class)
+    suspend fun getTxHistoryItems(
+        networkId: String,
+        derivationPath: String?,
+        page: Int,
+        pageSize: Int,
+    ): List<ProxyTransactionHistoryItem>
+}

libs/crypto/src/main/java/com/tangem/lib/crypto/models/txhistory/ProxyTransactionHistoryItem.kt

@@ -0,0 +1,21 @@
+package com.tangem.lib.crypto.models.txhistory
+
+import com.tangem.lib.crypto.models.ProxyAmount
+
+data class ProxyTransactionHistoryItem(
+    val txHash: String,
+    val timestamp: Long,
+    val direction: TransactionDirection,
+    val status: ProxyTransactionStatus,
+    val type: TransactionType,
+    val amount: ProxyAmount,
+) {
+    sealed interface TransactionDirection {
+        data class Incoming(val from: String) : TransactionDirection
+        data class Outgoing(val to: String) : TransactionDirection
+    }
+
+    sealed interface TransactionType {
+        object Transfer : TransactionType
+    }
+}

libs/crypto/src/main/java/com/tangem/lib/crypto/models/txhistory/ProxyTransactionHistoryState.kt

@@ -0,0 +1,15 @@
+package com.tangem.lib.crypto.models.txhistory
+
+sealed class ProxyTransactionHistoryState {
+
+    sealed class Success : ProxyTransactionHistoryState() {
+        object Empty : Success()
+        data class HasTransactions(val txCount: Int) : Success()
+    }
+
+    sealed class Failed : ProxyTransactionHistoryState() {
+        data class FetchError(val exception: Exception) : Failed()
+    }
+
+    object NotImplemented : ProxyTransactionHistoryState()
+}

libs/crypto/src/main/java/com/tangem/lib/crypto/models/txhistory/ProxyTransactionStatus.kt

@@ -0,0 +1,3 @@
+package com.tangem.lib.crypto.models.txhistory
+
+enum class ProxyTransactionStatus { Confirmed, Unconfirmed }