Updated on 2026-08-14

domain/txhistory/src/main/kotlin/com/tangem/domain/txhistory/repository/TxHistoryRepository.kt

@@ -23,4 +23,12 @@ interface TxHistoryRepository {
     ): Flow<PagingData<TxHistoryItem>>
 
     fun getTxExploreUrl(txHash: String, networkId: Network.ID): String
+
+    @Throws(TxHistoryListError::class)
+    suspend fun getFixedSizeTxHistoryItems(
+        userWalletId: UserWalletId,
+        currency: CryptoCurrency,
+        pageSize: Int,
+        refresh: Boolean,
+    ): List<TxHistoryItem>
 }

domain/txhistory/src/main/kotlin/com/tangem/domain/txhistory/usecase/GetFixedTxHistoryItemsUseCase.kt

@@ -0,0 +1,36 @@
+package com.tangem.domain.txhistory.usecase
+
+import arrow.core.Either
+import com.tangem.domain.tokens.model.CryptoCurrency
+import com.tangem.domain.txhistory.models.TxHistoryItem
+import com.tangem.domain.txhistory.models.TxHistoryListError
+import com.tangem.domain.txhistory.repository.TxHistoryRepository
+import com.tangem.domain.wallets.models.UserWalletId
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+
+/**
+ * Returns first page with size [DEFAULT_PAGE_SIZE] of tx history.
+ * Page size is preserved to reuse cached data in Token Details Screen.
+ *
+ * IMPORTANT!!!
+ * If page size bigger than [DEFAULT_PAGE_SIZE] is needed consider to implement another use case
+ * without use of cached data or increase [DEFAULT_PAGE_SIZE]
+ */
+class GetFixedTxHistoryItemsUseCase(
+    private val repository: TxHistoryRepository,
+) {
+
+    operator fun invoke(
+        userWalletId: UserWalletId,
+        currency: CryptoCurrency,
+        pageSize: Int = DEFAULT_PAGE_SIZE,
+        refresh: Boolean = false,
+    ): Either<TxHistoryListError, Flow<List<TxHistoryItem>>> {
+        return Either.catch {
+            flow {
+                emit(repository.getFixedSizeTxHistoryItems(userWalletId, currency, pageSize, refresh))
+            }
+        }.mapLeft { TxHistoryListError.DataError(it) }
+    }
+}

domain/txhistory/src/main/kotlin/com/tangem/domain/txhistory/usecase/GetTxHistoryItemsUseCase.kt

@@ -11,7 +11,7 @@ import com.tangem.domain.wallets.models.UserWalletId
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.catch
 
-private const val DEFAULT_PAGE_SIZE = 50
+const val DEFAULT_PAGE_SIZE = 50
 
 // TODO: Add tests
 class GetTxHistoryItemsUseCase(private val repository: TxHistoryRepository) {