fix(fee-info): update tendermint, erc20, and qrc20 fee_details response format

packages/komodo_defi_types/lib/komodo_defi_type_utils.dart

@@ -3,6 +3,7 @@
 /// Utilities for types used throughout the Komodo DeFi Framework ecosystem.
 library komodo_defi_type_utils;
 
+export 'src/utils/backoff_strategy.dart';
 export 'src/utils/iterable_type_utils.dart';
 export 'src/utils/json_type_utils.dart';
 export 'src/utils/live_data.dart';

packages/komodo_defi_types/lib/src/transactions/fee_info.dart

@@ -5,12 +5,13 @@ import 'package:komodo_defi_types/komodo_defi_type_utils.dart';
 part 'fee_info.freezed.dart';
 // We are doing manual fromJson/toJson, so no need for part 'fee_info.g.dart';
 
-/// A union representing five possible fee types:
+/// A union representing six possible fee types:
 /// - UtxoFixed
 /// - UtxoPerKbyte
 /// - EthGas
 /// - Qrc20Gas
 /// - CosmosGas
+/// - Tendermint
 @Freezed()
 sealed class FeeInfo with _$FeeInfo {
   //////////////////////////////////////////////////////////////////////////////
@@ -35,26 +36,30 @@ sealed class FeeInfo with _$FeeInfo {
           amount: Decimal.parse(json['amount'] as String),
         );
       case 'EthGas' || 'Eth':
+        final totalGasFee = json['total_fee'] != null
+            ? Decimal.parse(json['total_fee'].toString())
+            : null;
         return FeeInfo.ethGas(
           coin: json['coin'] as String? ?? '',
           // If JSON provides e.g. "0.000000003", parse to Decimal => 3e-9
           gasPrice: Decimal.parse(json['gas_price'].toString()),
           gas: json['gas'] as int,
+          totalGasFee: totalGasFee,
         );
       case 'Qrc20Gas':
+        final totalGasFee = json['total_gas_fee'] != null
+            ? Decimal.parse(json['total_gas_fee'].toString())
+            : null;
         return FeeInfo.qrc20Gas(
           coin: json['coin'] as String? ?? '',
           gasPrice: Decimal.parse(json['gas_price'].toString()),
           gasLimit: json['gas_limit'] as int,
+          totalGasFee: totalGasFee,
         );
-      // Legacy withdraw API returns "Tendermint" instead of "CosmosGas",
-      // so add this case for compatibility and as a fallback.
       case 'Tendermint':
-        return FeeInfo.cosmosGas(
+        return FeeInfo.tendermint(
           coin: json['coin'] as String? ?? '',
-          // The doc sometimes shows 0.05 as a number (double),
-          // so we convert it to string, then parse:
-          gasPrice: Decimal.parse(json['amount'].toString()),
+          amount: Decimal.parse(json['amount'].toString()),
           gasLimit: json['gas_limit'] as int,
         );
       case 'CosmosGas':
@@ -95,10 +100,12 @@ sealed class FeeInfo with _$FeeInfo {
   ///   "type": "EthGas",
   ///   "coin": "ETH",
   ///   "gas_price": "0.000000003",
-  ///   "gas": 21000
+  ///   "gas": 21000,
+  ///   "total_fee": "0.000021"
   /// }
   /// ```
   /// Interpreted as: 3 Gwei -> total fee = 0.000000003 ETH * 21000 = 0.000063 ETH.
+  /// If `totalGasFee` is provided, it will be used directly instead of calculating from gasPrice * gas.
   const factory FeeInfo.ethGas({
     required String coin,
 
@@ -107,6 +114,10 @@ sealed class FeeInfo with _$FeeInfo {
 
     /// Gas limit (number of gas units)
     required int gas,
+
+    /// Optional total fee override. If provided, this value will be used directly
+    /// instead of calculating from gasPrice * gas.
+    Decimal? totalGasFee,
   }) = FeeInfoEthGas;
 
   /// 4) Qtum/QRC20-like gas, specifying `gasPrice` (in coin units) and `gasLimit`.
@@ -118,6 +129,10 @@ sealed class FeeInfo with _$FeeInfo {
 
     /// Gas limit
     required int gasLimit,
+
+    /// Optional total gas fee in coin units. If not provided, it will be calculated
+    /// as `gasPrice * gasLimit`.
+    Decimal? totalGasFee,
   }) = FeeInfoQrc20Gas;
 
   /// 5) Cosmos-like gas, specifying `gasPrice` (in coin units) and `gasLimit`.
@@ -141,16 +156,39 @@ sealed class FeeInfo with _$FeeInfo {
     required int gasLimit,
   }) = FeeInfoCosmosGas;
 
+  /// 6) Tendermint fee, with fixed `amount` and `gasLimit`.
+  ///
+  /// Example JSON:
+  /// ```json
+  /// {
+  ///   "type": "Tendermint",
+  ///   "coin": "IRIS",
+  ///   "amount": "0.038553",
+  ///   "gas_limit": 100000
+  /// }
+  /// ```
+  /// Total fee is just the amount (not calculated from gas * price)
+  const factory FeeInfo.tendermint({
+    required String coin,
+
+    /// The fee amount in coin units
+    required Decimal amount,
+
+    /// Gas limit
+    required int gasLimit,
+  }) = FeeInfoTendermint;
+
   /// A convenience getter returning the *total fee* in the coin's main units.
   Decimal get totalFee => switch (this) {
         FeeInfoUtxoFixed(:final amount) => amount,
         FeeInfoUtxoPerKbyte(:final amount) => amount,
-        FeeInfoEthGas(:final gasPrice, :final gas) =>
-          gasPrice * Decimal.fromInt(gas),
-        FeeInfoQrc20Gas(:final gasPrice, :final gasLimit) =>
-          gasPrice * Decimal.fromInt(gasLimit),
+        FeeInfoEthGas(:final gasPrice, :final gas, :final totalGasFee) =>
+          totalGasFee ?? (gasPrice * Decimal.fromInt(gas)),
+        FeeInfoQrc20Gas(:final gasPrice, :final gasLimit, :final totalGasFee) =>
+          totalGasFee ?? (gasPrice * Decimal.fromInt(gasLimit)),
         FeeInfoCosmosGas(:final gasPrice, :final gasLimit) =>
           gasPrice * Decimal.fromInt(gasLimit),
+        FeeInfoTendermint(:final amount) => amount,
       };
 
   /// Convert this [FeeInfo] to a JSON object matching the mmRPC 2.0 docs.
@@ -165,22 +203,42 @@ sealed class FeeInfo with _$FeeInfo {
             'coin': coin,
             'amount': amount.toString(),
           },
-        FeeInfoEthGas(:final coin, :final gasPrice, :final gas) => {
+        FeeInfoEthGas(
+          :final coin,
+          :final gasPrice,
+          :final gas,
+          :final totalGasFee
+        ) =>
+          {
             'type': 'Eth',
             'coin': coin,
             'gas_price': gasPrice.toString(),
             'gas': gas,
+            if (totalGasFee != null) 'total_fee': totalGasFee.toString(),
           },
-        FeeInfoQrc20Gas(:final coin, :final gasPrice, :final gasLimit) => {
+        FeeInfoQrc20Gas(
+          :final coin,
+          :final gasPrice,
+          :final gasLimit,
+          :final totalGasFee
+        ) =>
+          {
             'type': 'Qrc20Gas',
             'coin': coin,
-            'gas_price': gasPrice.toString(),
+            'gas_price': gasPrice.toDouble(),
             'gas_limit': gasLimit,
+            if (totalGasFee != null) 'total_gas_fee': totalGasFee.toString(),
           },
         FeeInfoCosmosGas(:final coin, :final gasPrice, :final gasLimit) => {
             'type': 'CosmosGas',
             'coin': coin,
-            'gas_price': gasPrice.toString(),
+            'gas_price': gasPrice.toDouble(),
+            'gas_limit': gasLimit,
+          },
+        FeeInfoTendermint(:final coin, :final amount, :final gasLimit) => {
+            'type': 'Tendermint',
+            'coin': coin,
+            'amount': amount.toString(),
             'gas_limit': gasLimit,
           },
       };
@@ -197,6 +255,7 @@ extension FeeInfoMaybeMap on FeeInfo {
     TResult Function(FeeInfoEthGas value)? ethGas,
     TResult Function(FeeInfoQrc20Gas value)? qrc20Gas,
     TResult Function(FeeInfoCosmosGas value)? cosmosGas,
+    TResult Function(FeeInfoTendermint value)? tendermint,
   }) =>
       switch (this) {
         final FeeInfoUtxoFixed fee when utxoFixed != null => utxoFixed(fee),
@@ -205,6 +264,7 @@ extension FeeInfoMaybeMap on FeeInfo {
         final FeeInfoEthGas fee when ethGas != null => ethGas(fee),
         final FeeInfoQrc20Gas fee when qrc20Gas != null => qrc20Gas(fee),
         final FeeInfoCosmosGas fee when cosmosGas != null => cosmosGas(fee),
+        final FeeInfoTendermint fee when tendermint != null => tendermint(fee),
         _ => orElse(),
       };
 }