fix: better tron estimates

packages/chain-adapters/src/tron/TronChainAdapter.ts

@@ -361,27 +361,88 @@ export class ChainAdapter implements IChainAdapter<KnownChainIds.TronMainnet> {
   // This causes UI to show wrong fees and transactions to fail on-chain
   // See TRON_FEE_ESTIMATION_ISSUES.md for detailed analysis and fix
   async getFeeData(
-    _input: GetFeeDataInput<KnownChainIds.TronMainnet>,
+    input: GetFeeDataInput<KnownChainIds.TronMainnet>,
   ): Promise<FeeDataEstimate<KnownChainIds.TronMainnet>> {
     try {
-      // TODO: Use _input.chainSpecific.contractAddress to detect TRC20
-      // TODO: Call estimateTRC20TransferFee() for TRC20 tokens
-      // TODO: Build actual transaction with memo to get accurate bandwidth
-      // TODO: Add 1 TRX memo fee if _input.chainSpecific.memo present
-      const { fast, average, slow, estimatedBandwidth } =
-        await this.providers.http.getPriorityFees()
+      const { to, value, chainSpecific: { from, contractAddress, memo } = {} } = input
+
+      // Get live network prices from chain parameters
+      const tronWeb = new TronWeb({ fullHost: this.rpcUrl })
+      const params = await tronWeb.trx.getChainParameters()
+      const bandwidthPrice = params.find(p => p.key === 'getTransactionFee')?.value ?? 1000
+      const energyPrice = params.find(p => p.key === 'getEnergyFee')?.value ?? 100
+
+      let energyFee = 0
+      let bandwidthFee = 0
+
+      if (contractAddress) {
+        // TRC20: Estimate energy using existing method
+        try {
+          // Use sender address if available, otherwise use recipient for estimation
+          const estimationFrom = from || to
+          const energyEstimate = await this.providers.http.estimateTRC20TransferFee({
+            contractAddress,
+            from: estimationFrom,
+            to,
+            amount: value,
+          })
+          energyFee = Number(energyEstimate)
+
+          // Apply 1.5x safety margin for dynamic energy spikes
+          energyFee = Math.ceil(energyFee * 1.5)
+        } catch (err) {
+          // Fallback: Conservative estimate for new address (130k energy)
+          energyFee = 130000 * energyPrice
+        }
+
+        // TRC20 transfers use ~276 bytes bandwidth
+        bandwidthFee = 276 * bandwidthPrice
+      } else {
+        // TRX transfer: Build actual transaction to get precise bandwidth
+        try {
+          const baseTx = await tronWeb.transactionBuilder.sendTrx(
+            to,
+            Number(value),
+            to, // Use recipient as sender for estimation
+          )
+
+          // Add memo if provided to get accurate size
+          const finalTx = memo
+            ? await tronWeb.transactionBuilder.addUpdateData(baseTx, memo, 'utf8')
+            : baseTx
+
+          // Calculate bandwidth from actual transaction size
+          const rawDataBytes = finalTx.raw_data_hex ? finalTx.raw_data_hex.length / 2 : 133
+          const signatureBytes = 65
+          const totalBytes = rawDataBytes + signatureBytes
+
+          bandwidthFee = totalBytes * bandwidthPrice
+        } catch (err) {
+          // Fallback bandwidth estimate
+          const baseBytes = memo ? 231 : 198
+          bandwidthFee = baseBytes * bandwidthPrice
+        }
+      }
+
+      // Add 1 TRX memo fee when memo present (network parameter #68)
+      const memoFee = memo ? 1_000_000 : 0
+
+      const totalFee = energyFee + bandwidthFee + memoFee
+
+      // Calculate bandwidth for display
+      const estimatedBandwidth = String(Math.ceil(bandwidthFee / bandwidthPrice))
 
       return {
         fast: {
-          txFee: fast,
+          txFee: String(totalFee),
           chainSpecific: { bandwidth: estimatedBandwidth },
         },
         average: {
-          txFee: average,
+          txFee: String(totalFee),
           chainSpecific: { bandwidth: estimatedBandwidth },
         },
         slow: {
-          txFee: slow,
+          txFee: String(totalFee),
           chainSpecific: { bandwidth: estimatedBandwidth },
         },
       }

packages/chain-adapters/src/tron/types.ts

@@ -21,6 +21,12 @@ export type BuildTxInput = {
   memo?: string
 }
 
+export type GetFeeDataInput = {
+  from?: string
+  contractAddress?: string
+  memo?: string
+}
+
 export interface TronUnsignedTx {
   txID: string
   raw_data: {

packages/chain-adapters/src/types.ts

@@ -320,6 +320,7 @@ type ChainSpecificGetFeeDataInput<T> = ChainSpecific<
     [KnownChainIds.LitecoinMainnet]: utxo.GetFeeDataInput
     [KnownChainIds.SolanaMainnet]: solana.GetFeeDataInput
     [KnownChainIds.SuiMainnet]: sui.GetFeeDataInput
+    [KnownChainIds.TronMainnet]: tron.GetFeeDataInput
   }
 >
 export type GetFeeDataInput<T extends ChainId> = {

packages/swapper/src/swappers/NearIntentsSwapper/swapperApi/getTradeQuote.ts

@@ -222,6 +222,7 @@ export const getTradeQuote = async (
           const feeData = await sellAdapter.getFeeData({
             to: depositAddress,
             value: sellAmount,
+            chainSpecific: {},
           })
 
           return { networkFeeCryptoBaseUnit: feeData.fast.txFee }

packages/swapper/src/swappers/NearIntentsSwapper/swapperApi/getTradeRate.ts

@@ -227,6 +227,7 @@ export const getTradeRate = async (
             const feeData = await sellAdapter.getFeeData({
               to: depositAddress,
               value: sellAmount,
+              chainSpecific: {},
             })
 
             return feeData.fast.txFee

packages/swapper/src/thorchain-utils/getL1RateOrQuote.ts

@@ -5,6 +5,7 @@ import {
   assertUnreachable,
   bn,
   bnOrZero,
+  contractAddressOrUndefined,
   convertDecimalPercentageToBasisPoints,
   convertPrecision,
   fromBaseUnit,
@@ -14,6 +15,7 @@ import {
 } from '@shapeshiftoss/utils'
 import type { Result } from '@sniptt/monads'
 import { Err, Ok } from '@sniptt/monads'
+import { TronWeb } from 'tronweb'
 import { v4 as uuid } from 'uuid'
 
 import { getDefaultSlippageDecimalPercentageForSwapper } from '../index'
@@ -41,6 +43,7 @@ import {
   getNativePrecision,
   getSwapSource,
 } from './index'
+import * as tron from './tron'
 import type {
   ThorEvmTradeQuote,
   ThorEvmTradeRate,
@@ -442,12 +445,66 @@ export const getL1RateOrQuote = async <T extends ThorTradeRateOrQuote>(
     }
     case CHAIN_NAMESPACE.Tron: {
       const maybeRoutes = await Promise.allSettled(
-        perRouteValues.map((route): Promise<T> => {
+        perRouteValues.map(async (route): Promise<T> => {
           const memo = getMemo(route)
-
-          // For rate quotes (no wallet), we can't calculate fees
-          // Actual fees will be calculated in getTronTransactionFees when executing
-          const networkFeeCryptoBaseUnit = undefined
+          let networkFeeCryptoBaseUnit: string | undefined = undefined
+
+          // Calculate fees for rates when we have a receive address (wallet connected)
+          if (input.quoteOrRate === 'rate' && input.receiveAddress) {
+            try {
+              const { sellAsset, sellAmountIncludingProtocolFeesCryptoBaseUnit } = input
+              const contractAddress = contractAddressOrUndefined(sellAsset.assetId)
+
+              // Get vault address
+              const { vault } = await tron.getThorTxData({ sellAsset, config, swapperName })
+
+              // Estimate fees using the receive address for accurate energy calculation
+              const tronWeb = new TronWeb({ fullHost: deps.config.VITE_TRON_NODE_URL })
+              const params = await tronWeb.trx.getChainParameters()
+              const bandwidthPrice = params.find(p => p.key === 'getTransactionFee')?.value ?? 1000
+              const energyPrice = params.find(p => p.key === 'getEnergyFee')?.value ?? 100
+
+              let totalFee = 0
+
+              if (contractAddress) {
+                // TRC20: Estimate energy with actual recipient
+                try {
+                  const result = await tronWeb.transactionBuilder.triggerConstantContract(
+                    contractAddress,
+                    'transfer(address,uint256)',
+                    {},
+                    [
+                      { type: 'address', value: vault }, // Use vault as recipient
+                      { type: 'uint256', value: sellAmountIncludingProtocolFeesCryptoBaseUnit },
+                    ],
+                    input.receiveAddress, // Use user's address as sender for estimation
+                  )
+
+                  const energyUsed = result.energy_used ?? 65000
+                  const energyFee = energyUsed * energyPrice * 1.5 // 1.5x safety margin
+                  const bandwidthFee = 276 * bandwidthPrice // TRC20 bandwidth
+                  totalFee = Math.ceil(energyFee + bandwidthFee)
+                } catch {
+                  // Fallback: Conservative estimate
+                  totalFee = 13_000_000 // 13 TRX worst case
+                }
+              } else {
+                // TRX transfer bandwidth
+                const baseBandwidth = 198 * bandwidthPrice
+                totalFee = baseBandwidth
+              }
+
+              // Add memo fee if memo will be present
+              if (route.quote.memo) {
+                totalFee += 1_000_000 // 1 TRX memo fee
+              }
+
+              networkFeeCryptoBaseUnit = String(totalFee)
+            } catch {
+              // Leave as undefined if estimation fails
+            }
+          }
+          // For quotes, fees will be calculated in getTronTransactionFees when executing
 
           return Promise.resolve(
             makeThorTradeRateOrQuote<ThorUtxoOrCosmosTradeRateOrQuote>({

packages/unchained-client/src/tron/api.ts

@@ -240,7 +240,8 @@ export class TronApi {
 
       return String(feeInSun)
     } catch (_err) {
-      return '31000000'
+      // Fallback: Worst case 130k energy at current 100 sun/energy
+      return '13000000' // 13 TRX (more realistic than 31 TRX)
     }
   }
 

src/components/Modals/Send/hooks/useSendDetails/useSendDetails.tsx

@@ -1,5 +1,5 @@
 import type { ChainId } from '@shapeshiftoss/caip'
-import { solAssetId } from '@shapeshiftoss/caip'
+import { fromAccountId, solAssetId } from '@shapeshiftoss/caip'
 import type { FeeDataEstimate } from '@shapeshiftoss/chain-adapters'
 import { ChainAdapterError, solana } from '@shapeshiftoss/chain-adapters'
 import { contractAddressOrUndefined } from '@shapeshiftoss/utils'
@@ -108,9 +108,12 @@ export const useSendDetails = (): UseSendDetailsReturnType => {
       if (!accountId) throw new Error('No accountId found')
       if (!wallet) throw new Error('No wallet connected')
 
+      const { account: from } = fromAccountId(accountId)
+
       return estimateFees({
         amountCryptoPrecision,
         assetId,
+        from,
         to,
         sendMax,
         accountId,
@@ -193,8 +196,6 @@ export const useSendDetails = (): UseSendDetailsReturnType => {
 
         return estimatedFees
       } catch (e: unknown) {
-        console.debug(e)
-
         if (e instanceof ChainAdapterError) {
           throw new Error(translate(e.metadata.translation, e.metadata.options))
         }

src/components/Modals/Send/utils.ts

@@ -133,6 +133,11 @@ export const estimateFees = async ({
         to,
         value,
         sendMax,
+        chainSpecific: {
+          from,
+          contractAddress,
+          memo,
+        },
       }
       return adapter.getFeeData(getFeeDataInput)
     }