Don't show zero ammount message by default

src/custom/pages/Claim/FooterNavButtons.tsx

@@ -1,6 +1,11 @@
 import { Trans } from '@lingui/macro'
 import { isAddress } from '@ethersproject/address'
-import { useClaimDispatchers, useClaimState, useHasClaimInvestmentFlowError } from 'state/claim/hooks'
+import {
+  useClaimDispatchers,
+  useClaimState,
+  useHasClaimInvestmentFlowError,
+  useHasZeroInvested,
+} from 'state/claim/hooks'
 import { ButtonPrimary, ButtonSecondary } from 'components/Button'
 import { ClaimStatus } from 'state/claim/actions'
 import { FooterNavButtons as FooterNavButtonsWrapper, ReadMoreText } from './styled'
@@ -56,6 +61,7 @@ export default function FooterNavButtons({
   } = useClaimDispatchers()
 
   const hasError = useHasClaimInvestmentFlowError()
+  const hasZeroInvested = useHasZeroInvested()
 
   const isInputAddressValid = isAddress(resolvedAddress || '')
 
@@ -104,7 +110,7 @@ export default function FooterNavButtons({
               <Trans>Continue</Trans>
             </ButtonPrimary>
           ) : investFlowStep === 1 ? (
-            <ButtonPrimary onClick={() => setInvestFlowStep(2)} disabled={hasError}>
+            <ButtonPrimary onClick={() => setInvestFlowStep(2)} disabled={hasError || hasZeroInvested}>
               <Trans>Review</Trans>
             </ButtonPrimary>
           ) : (

src/custom/pages/Claim/InvestmentFlow/InvestOption.tsx

@@ -59,11 +59,9 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
   const { currencyAmount, price, cost: maxCost } = claim
 
   const { account, chainId } = useActiveWeb3React()
-  const { updateInvestAmount, updateInvestError } = useClaimDispatchers()
+  const { updateInvestAmount, updateInvestError, setIsTouched } = useClaimDispatchers()
   const { investFlowData, activeClaimAccount, estimatedGas } = useClaimState()
 
-  const investmentAmount = investFlowData[optionIndex].investedAmount
-
   // Approve hooks
   const {
     approvalState: approveState,
@@ -87,6 +85,7 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
 
   const investedAmount = investFlowData[optionIndex].investedAmount
   const inputError = investFlowData[optionIndex].error
+  const isTouched = investFlowData[optionIndex].isTouched
 
   // Syntactic sugar fns for setting/resetting global state
   const setInvestedAmount = useCallback(
@@ -101,6 +100,10 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
     () => updateInvestError({ index: optionIndex, error: undefined }),
     [optionIndex, updateInvestError]
   )
+  const setInputTouched = useCallback(
+    (value: boolean) => setIsTouched({ index: optionIndex, isTouched: value }),
+    [optionIndex, setIsTouched]
+  )
 
   const token = currencyAmount?.currency
   const isNative = token?.isNative
@@ -113,6 +116,11 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
 
   const isApproved = approveState === ApprovalState.APPROVED
 
+  const onUserInput = (input: string) => {
+    setTypedValue(input)
+    setInputTouched(true)
+  }
+
   const gasCost = useMemo(() => {
     if (!estimatedGas || !isNative) {
       return
@@ -134,7 +142,8 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
 
     const value = maxCost.greaterThan(balance) ? balance : maxCost
     setTypedValue(value.toExact() || '')
-  }, [balance, maxCost, noBalance])
+    setInputTouched(true)
+  }, [balance, maxCost, noBalance, setInputTouched])
 
   // Save "local" approving state (pre-BC) for rendering spinners etc
   const [approving, setApproving] = useState(false)
@@ -180,8 +189,8 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
   */
 
   const vCowAmount = useMemo(
-    () => calculateInvestmentAmounts(claim, investmentAmount)?.vCowAmount,
-    [claim, investmentAmount]
+    () => calculateInvestmentAmounts(claim, investedAmount)?.vCowAmount,
+    [claim, investedAmount]
   )
 
   // if there is investmentAmount in redux state for this option set it as typedValue
@@ -224,6 +233,11 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
       error = ErrorMessages.InsufficientBalance(token?.symbol)
     } else if (!isNative && !isApproved) {
       error = ErrorMessages.NotApproved(token?.symbol)
+    } else if (noBalance) {
+      error = ErrorMessages.InsufficientBalance(token?.symbol)
+    } else if (!parsedAmount && !isTouched) {
+      // this is to remove initial zero balance error message until user touches the input
+      error = ''
     } else if (!parsedAmount) {
       error = ErrorMessages.InvestmentIsZero
     } else if (parsedAmount.greaterThan(maxCost)) {
@@ -232,7 +246,7 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
       error = ErrorMessages.InsufficientBalance(token?.symbol)
     }
 
-    if (error) {
+    if (error !== null) {
       // if there is error set it in redux
       setInputError(error)
       setPercentage('0')
@@ -264,6 +278,8 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
     setInvestedAmount,
     percentage,
     gasCost,
+    isTouched,
+    noBalance,
   ])
 
   useEffect(() => {
@@ -370,7 +386,7 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
         {/* Error modal */}
         <ErrorModal />
         {/* Investment inputs */}
-        <InvestInput>
+        <InvestInput disabled={noBalance || !isSelfClaiming}>
           <div>
             <label>
               <span>
@@ -387,7 +403,7 @@ export default function InvestOption({ claim, optionIndex, openModal, closeModal
                 )}
               </span>
               <StyledNumericalInput
-                onUserInput={setTypedValue}
+                onUserInput={onUserInput}
                 disabled={noBalance || !isSelfClaiming}
                 placeholder="0"
                 $loading={false}

src/custom/pages/Claim/InvestmentFlow/index.tsx

@@ -21,6 +21,7 @@ import {
   useUserEnhancedClaimData,
   useClaimDispatchers,
   useHasClaimInvestmentFlowError,
+  useSomeNotTouched,
 } from 'state/claim/hooks'
 import { ClaimStatus } from 'state/claim/actions'
 import { InvestClaim } from 'state/claim/reducer'
@@ -134,6 +135,7 @@ export default function InvestmentFlow({ hasClaims, isAirdropOnly, modalCbs }: I
   const claimData = useUserEnhancedClaimData(activeClaimAccount)
 
   const hasError = useHasClaimInvestmentFlowError()
+  const someNotTouched = useSomeNotTouched()
 
   // Filtering and splitting claims into free and selected paid claims
   // `selectedClaims` are used on step 1 and 2
@@ -221,6 +223,9 @@ export default function InvestmentFlow({ hasClaims, isAirdropOnly, modalCbs }: I
           ))}
 
           {hasError && <InvestFlowValidation>Fix the errors before continuing</InvestFlowValidation>}
+          {!hasError && someNotTouched && (
+            <InvestFlowValidation>Investment Amount is required to continue</InvestFlowValidation>
+          )}
         </InvestContent>
       ) : null}
       {/* Invest flow: Step 2 > Review summary */}

src/custom/pages/Claim/styled.ts

@@ -1113,7 +1113,7 @@ export const UnderlineButton = styled.button`
   }
 `
 
-export const InvestInput = styled.span`
+export const InvestInput = styled.span<{ disabled: boolean }>`
   display: flex;
   flex-flow: column wrap;
   font-size: 15px;
@@ -1131,10 +1131,12 @@ export const InvestInput = styled.span`
     flex-flow: row wrap;
     padding: 12px;
     position: relative;
-    background: ${({ theme }) => (theme.currencyInput?.background ? theme.currencyInput?.background : theme.bg1)};
+    background: ${({ theme, disabled }) =>
+      disabled ? theme.bg5 : theme.currencyInput?.background ? theme.currencyInput?.background : theme.bg1};
     border: ${({ theme }) =>
       theme.currencyInput?.border ? theme.currencyInput?.border : `border: 1px solid ${theme.bg2}`};
     border-radius: 12px;
+    opacity: ${({ disabled }) => (disabled ? '0.7' : '1')};
 
     > span {
       margin-left: 5px;
@@ -1248,11 +1250,11 @@ export const InvestInput = styled.span`
     &:hover {
       color: ${({ theme }) => theme.text1};
     }
+  }
 
-    > div > label > span > ${UnderlineButton} {
-      margin-left: 4px;
-
-    }
+  > div > label > span > ${UnderlineButton} {
+    margin-left: 4px;
+  }
 `
 
 export const InvestAvailableBar = styled.div<{ percentage?: number }>`

src/custom/state/claim/actions.ts

@@ -27,6 +27,7 @@ export type ClaimActions = {
   initInvestFlowData: () => void
   updateInvestAmount: (payload: { index: number; amount: string }) => void
   updateInvestError: (payload: { index: number; error: string | undefined }) => void
+  setIsTouched: (payload: { index: number; isTouched: boolean }) => void
 
   // claim row selection
   setSelected: (payload: number[]) => void
@@ -58,6 +59,10 @@ export const updateInvestError = createAction<{
   index: number
   error: string | undefined
 }>('claim/updateInvestError')
+export const setIsTouched = createAction<{
+  index: number
+  isTouched: boolean
+}>('claim/setIsTouched')
 // claim row selection
 export const setSelected = createAction<number[]>('claim/setSelected')
 export const setSelectedAll = createAction<boolean>('claim/setSelectedAll')

src/custom/state/claim/hooks/index.ts

@@ -55,6 +55,7 @@ import {
   resetClaimUi,
   updateInvestError,
   setEstimatedGas,
+  setIsTouched,
 } from '../actions'
 import { EnhancedUserClaimData } from 'pages/Claim/types'
 import { supportedChainId } from 'utils/supportedChainId'
@@ -838,6 +839,7 @@ export function useClaimDispatchers() {
       updateInvestAmount: (payload: { index: number; amount: string }) => dispatch(updateInvestAmount(payload)),
       updateInvestError: (payload: { index: number; error: string | undefined }) =>
         dispatch(updateInvestError(payload)),
+      setIsTouched: (payload: { index: number; isTouched: boolean }) => dispatch(setIsTouched(payload)),
       // claim row selection
       setSelected: (payload: number[]) => dispatch(setSelected(payload)),
       setSelectedAll: (payload: boolean) => dispatch(setSelectedAll(payload)),
@@ -853,7 +855,7 @@ export function useClaimState() {
 }
 
 /**
- * Returns a boolean indicating whehter there's an error on claim investment flow
+ * Returns a boolean indicating whether there's an error on claim investment flow
  */
 export function useHasClaimInvestmentFlowError(): boolean {
   const { investFlowData } = useClaimState()
@@ -863,6 +865,28 @@ export function useHasClaimInvestmentFlowError(): boolean {
   }, [investFlowData])
 }
 
+/**
+ * Returns a boolean indicating whether there's "touched" field on claim investment flow
+ */
+export function useSomeNotTouched(): boolean {
+  const { investFlowData } = useClaimState()
+
+  return useMemo(() => {
+    return investFlowData.some(({ isTouched }) => !isTouched)
+  }, [investFlowData])
+}
+
+/**
+ * Returns a boolean indicating whether there's an zero invested amount on some invest option
+ */
+export function useHasZeroInvested(): boolean {
+  const { investFlowData } = useClaimState()
+
+  return useMemo(() => {
+    return investFlowData.some(({ investedAmount }) => investedAmount === '0')
+  }, [investFlowData])
+}
+
 /**
  * Gets an array of available claims parsed and sorted for the UI
  *

src/custom/state/claim/reducer.ts

@@ -16,6 +16,7 @@ import {
   ClaimStatus,
   updateInvestError,
   setEstimatedGas,
+  setIsTouched,
 } from './actions'
 
 export const initialState: ClaimState = {
@@ -43,6 +44,7 @@ export type InvestClaim = {
   index: number
   investedAmount: string
   error?: string
+  isTouched?: boolean
 }
 
 export type ClaimState = {
@@ -126,4 +128,7 @@ export default createReducer(initialState, (builder) =>
       state.claimedAmount = initialState.claimedAmount
       state.estimatedGas = initialState.estimatedGas
     })
+    .addCase(setIsTouched, (state, { payload: { index, isTouched } }) => {
+      state.investFlowData[index].isTouched = isTouched
+    })
 )