fix(fiat): handle all token balances via Fiat#tokenBalance

allow USDC balances to be returned instead of conditionals throughout

Signed-off-by: Brandon McAnsh <[email protected]>

Author: bmc08gt

apps/flipcash/features/withdrawal/src/main/kotlin/com/flipcash/app/withdrawal/WithdrawalViewModel.kt

@@ -71,7 +71,6 @@ internal class WithdrawalViewModel @Inject constructor(
     private val resources: ResourceHelper,
     private val exchange: Exchange,
     private val userManager: UserManager,
-    balanceController: BalanceController,
     transactionController: TransactionController,
     clipboardManager: ClipboardManager,
     activityFeedCoordinator: ActivityFeedCoordinator,

apps/flipcash/features/withdrawal/src/main/kotlin/com/flipcash/app/withdrawal/internal/confirmation/WithdrawalConfirmationScreen.kt

@@ -140,7 +140,8 @@ private fun WithdrawalConfirmationScreenContent(
                         token = this,
                         balance = Fiat.tokenBalance(
                             state.amountEntryState.selectedAmount.underlyingTokenAmount.quarks,
-                            this
+                            currencyCode = state.amountEntryState.selectedAmount.underlyingTokenAmount.currencyCode,
+                            token = this
                         )
                     ),
                     destination = state.destinationState.textFieldState.text.toString(),

services/opencode/src/main/kotlin/com/getcode/opencode/controllers/TokenController.kt

@@ -143,11 +143,7 @@ class TokenController @Inject constructor(
                         .getOrDefault(emptyList())
                         .firstOrNull() ?: return@mapNotNull null
 
-                    val tokenBalance = if (token.address == Mint.usdc) {
-                        Fiat(account.balance)
-                    } else {
-                        Fiat.tokenBalance(account.balance, token)
-                    }
+                    val tokenBalance = Fiat.tokenBalance(account.balance, token = token)
 
                     TokenWithBalance(token, tokenBalance)
                 }
@@ -223,8 +219,7 @@ class TokenController @Inject constructor(
             )?.map { (account, token) ->
                     when {
                         account == null -> throw IllegalStateException("No account found for token with mint ${token.symbol}")
-                        account.mint == Mint.usdc -> token to Fiat(account.balance)
-                        else -> token to Fiat.tokenBalance(account.balance, token)
+                        else -> token to Fiat.tokenBalance(account.balance, token = token)
                     }
                 }?.onSuccess { (token, tokenBalance) ->
                     mintBalances.update { it + (mint to tokenBalance) }

services/opencode/src/main/kotlin/com/getcode/opencode/model/financial/Fiat.kt

@@ -156,12 +156,11 @@ data class Fiat(
 
         fun tokenBalance(
             quarks: Long,
+            currencyCode: CurrencyCode = CurrencyCode.USD,
             token: Token
         ): Fiat {
             if (token.address == Mint.usdc) {
-                throw IllegalArgumentException(
-                    "Cannot create Fiat from USDC Token directly, use the Fiat(quarks: Long, currencyCode: CurrencyCode) constructor instead"
-                )
+                return Fiat(quarks, currencyCode)
             }
 
             return Fiat(