From 07fab464be8f3277cc9ff5edf04110e089412cf0 Mon Sep 17 00:00:00 2001
From: Doston Kamalov <dkamalov@tangem.com>
Date: Tue, 5 Dec 2023 12:20:25 +0500
Subject: [PATCH] AND-5378 Enabled transaction history for ETC

---
 .../ethereum/EthereumAddressService.kt          |  2 +-
 .../EthereumTransactionHistoryProvider.kt       | 17 ++++++++++++++---
 .../txhistory/TransactionHistoryProviderExt.kt  |  1 +
 .../network/blockbook/config/BlockBookConfig.kt |  1 +
 4 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumAddressService.kt b/blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumAddressService.kt
index b6e69da05..5d1fba4b3 100644
--- a/blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumAddressService.kt
+++ b/blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumAddressService.kt
@@ -16,4 +16,4 @@ class EthereumAddressService : AddressService() {
         ).toAddress().withERC55Checksum().hex
 
     override fun validate(address: String): Boolean = Address(address).hasValidERC55ChecksumOrNoChecksum()
-}
\ No newline at end of file
+}
diff --git a/blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumTransactionHistoryProvider.kt b/blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumTransactionHistoryProvider.kt
index b4bfa6010..44dd6450d 100644
--- a/blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumTransactionHistoryProvider.kt
+++ b/blockchain/src/main/java/com/tangem/blockchain/blockchains/ethereum/EthereumTransactionHistoryProvider.kt
@@ -17,6 +17,8 @@ import kotlinx.coroutines.withContext
 import java.math.BigDecimal
 import java.util.concurrent.TimeUnit
 
+private const val ETHEREUM_METHOD_ID_LENGTH = 8
+
 internal class EthereumTransactionHistoryProvider(
     private val blockchain: Blockchain,
     private val blockBookApi: BlockBookApi,
@@ -121,9 +123,13 @@ internal class EthereumTransactionHistoryProvider(
     }
 
     private fun extractType(tx: GetAddressResponse.Transaction): TransactionHistoryItem.TransactionType {
-        val methodId = tx.ethereumSpecific?.parsedData?.methodId.guard {
-            return TransactionHistoryItem.TransactionType.Transfer
-        }
+        val ethereumSpecific = tx.ethereumSpecific
+
+        // Retrieve the methodId from a specific field in the response or parse it from ethereumSpecific. If unable to
+        // extract the methodId from either, return the default transaction type.
+        val methodId = ethereumSpecific?.parsedData?.methodId
+            ?: methodIdFromRawData(ethereumSpecific?.data)
+            ?: return TransactionHistoryItem.TransactionType.Transfer
 
         // MethodId is empty for the coin transfers
         if (methodId.isEmpty()) return TransactionHistoryItem.TransactionType.Transfer
@@ -131,6 +137,11 @@ internal class EthereumTransactionHistoryProvider(
         return TransactionHistoryItem.TransactionType.ContractMethod(id = methodId)
     }
 
+    private fun methodIdFromRawData(rawData: String?): String? {
+        val methodId = rawData?.removePrefix("0x")?.take(ETHEREUM_METHOD_ID_LENGTH)
+        return if (methodId?.length == ETHEREUM_METHOD_ID_LENGTH) methodId else null
+    }
+
     private fun isOutgoing(
         walletAddress: String,
         transaction: GetAddressResponse.Transaction,
diff --git a/blockchain/src/main/java/com/tangem/blockchain/common/txhistory/TransactionHistoryProviderExt.kt b/blockchain/src/main/java/com/tangem/blockchain/common/txhistory/TransactionHistoryProviderExt.kt
index d9d6983eb..153decbaf 100644
--- a/blockchain/src/main/java/com/tangem/blockchain/common/txhistory/TransactionHistoryProviderExt.kt
+++ b/blockchain/src/main/java/com/tangem/blockchain/common/txhistory/TransactionHistoryProviderExt.kt
@@ -29,6 +29,7 @@ internal fun Blockchain.getTransactionHistoryProvider(
 
             Blockchain.Ethereum,
             Blockchain.EthereumTestnet,
+            Blockchain.EthereumClassic,
             // Blockchain.Arbitrum,
             Blockchain.Avalanche,
             Blockchain.BSC,
diff --git a/blockchain/src/main/java/com/tangem/blockchain/network/blockbook/config/BlockBookConfig.kt b/blockchain/src/main/java/com/tangem/blockchain/network/blockbook/config/BlockBookConfig.kt
index 870e6f941..749346c46 100644
--- a/blockchain/src/main/java/com/tangem/blockchain/network/blockbook/config/BlockBookConfig.kt
+++ b/blockchain/src/main/java/com/tangem/blockchain/network/blockbook/config/BlockBookConfig.kt
@@ -36,6 +36,7 @@ sealed class BlockBookConfig(val credentials: BlockBookCredentials?) {
                 Blockchain.Polygon -> "https://${prefix}book.$baseHost"
                 Blockchain.Kava -> "https://kava-tendermint.$baseHost"
                 Blockchain.Ethereum,
+                Blockchain.EthereumClassic,
                 Blockchain.Avalanche,
                 Blockchain.EthereumPow,
                 Blockchain.Tron,