1 files changed, 55 insertions, 0 deletions
diff --git a/ui/app/components/send_/send-content/send-amount-row/send-amount-row.utils.js b/ui/app/components/send_/send-content/send-amount-row/send-amount-row.utils.js
new file mode 100644
index 000000000..5b01b4594
--- /dev/null
+++ b/ui/app/components/send_/send-content/send-amount-row/send-amount-row.utils.js
@@ -0,0 +1,55 @@
+const { isValidAddress } = require('../../../../util')
+
+function getAmountErrorObject ({
+  amount,
+  balance,
+  amountConversionRate,
+  conversionRate,
+  primaryCurrency,
+  selectedToken,
+  gasTotal,
+  tokenBalance,
+}) {
+  let insufficientFunds = false
+  if (gasTotal && conversionRate) {
+    insufficientFunds = !isBalanceSufficient({
+      amount: selectedToken ? '0x0' : amount,
+      gasTotal,
+      balance,
+      primaryCurrency,
+      amountConversionRate,
+      conversionRate,
+    })
+  }
+
+  let inSufficientTokens = false
+  if (selectedToken && tokenBalance !== null) {
+    const { decimals } = selectedToken
+    inSufficientTokens = !isTokenBalanceSufficient({
+      tokenBalance,
+      amount,
+      decimals,
+    })
+  }
+
+  const amountLessThanZero = conversionGreaterThan(
+    { value: 0, fromNumericBase: 'dec' },
+    { value: amount, fromNumericBase: 'hex' },
+  )
+
+  let amountError = null
+
+  if (insufficientFunds) {
+    amountError = this.context.t('insufficientFunds')
+  } else if (insufficientTokens) {
+    amountError = this.context.t('insufficientTokens')
+  } else if (amountLessThanZero) {
+    amountError = this.context.t('negativeETH')
+  }
+
+  return { amount: amountError }
+}
+
+module.exports = {
+  getAmountErrorObject
+}