Extract bet amount input to component.

web/components/add-funds-button.tsx

@@ -18,7 +18,7 @@ export function AddFundsButton(props: { className?: string }) {
       <label
         htmlFor="add-funds"
         className={clsx(
-          'btn btn-sm normal-case modal-button bg-gradient-to-r from-teal-500 to-green-500 hover:from-teal-600 hover:to-green-600 font-normal border-none',
+          'btn btn-xs normal-case modal-button bg-gradient-to-r from-teal-500 to-green-500 hover:from-teal-600 hover:to-green-600 font-normal border-none',
           className
         )}
       >

web/components/amount-input.tsx

@@ -0,0 +1,79 @@
+import clsx from 'clsx'
+import { useUser } from '../hooks/use-user'
+import { formatMoney } from '../lib/util/format'
+import { AddFundsButton } from './add-funds-button'
+import { Col } from './layout/col'
+import { Row } from './layout/row'
+
+export function AmountInput(props: {
+  amount: number | undefined
+  onChange: (newAmount: number | undefined) => void
+  error: string | undefined
+  setError: (error: string | undefined) => void
+  disabled?: boolean
+  className?: string
+  inputClassName?: string
+}) {
+  const {
+    amount,
+    onChange,
+    error,
+    setError,
+    disabled,
+    className,
+    inputClassName,
+  } = props
+
+  const user = useUser()
+
+  const onAmountChange = (str: string) => {
+    const amount = parseInt(str.replace(/[^\d]/, ''))
+
+    if (str && isNaN(amount)) return
+
+    onChange(str ? amount : undefined)
+
+    if (user && user.balance < amount) setError('Insufficient balance')
+    else setError(undefined)
+  }
+
+  const remainingBalance = (user?.balance ?? 0) - (amount ?? 0)
+
+  return (
+    <Col className={className}>
+      <label className="input-group">
+        <span className="text-sm bg-gray-200">M$</span>
+        <input
+          className={clsx(
+            'input input-bordered',
+            error && 'input-error',
+            inputClassName
+          )}
+          type="text"
+          placeholder="0"
+          maxLength={9}
+          value={amount ?? ''}
+          disabled={disabled}
+          onChange={(e) => onAmountChange(e.target.value)}
+        />
+      </label>
+      {user && (
+        <Row className="text-sm text-gray-500 justify-between mt-3 gap-4 items-end">
+          {error ? (
+            <div className="font-medium tracking-wide text-red-500 text-xs whitespace-nowrap mr-auto self-center">
+              {error}
+            </div>
+          ) : (
+            <Col>
+              <div className="whitespace-nowrap">Remaining balance</div>
+              <div className="text-neutral mt-1">
+                {formatMoney(Math.floor(remainingBalance))}
+              </div>
+            </Col>
+          )}
+          {user.balance !== 1000 && <AddFundsButton className="mt-1" />}
+        </Row>
+      )}
+    </Col>
+  )
+}

web/components/bet-panel.tsx

@@ -20,11 +20,11 @@ import {
   calculatePayoutAfterCorrectBet,
 } from '../../common/calculate'
 import { firebaseLogin } from '../lib/firebase/users'
-import { AddFundsButton } from './add-funds-button'
 import { OutcomeLabel } from './outcome-label'
 import { AdvancedPanel } from './advanced-panel'
 import { Bet } from '../../common/bet'
 import { placeBet } from '../lib/firebase/api-call'
+import { AmountInput } from './amount-input'
 
 export function BetPanel(props: { contract: Contract; className?: string }) {
   useEffect(() => {
@@ -48,17 +48,9 @@ export function BetPanel(props: { contract: Contract; className?: string }) {
     setWasSubmitted(false)
   }
 
-  function onBetChange(str: string) {
+  function onBetChange(newAmount: number | undefined) {
     setWasSubmitted(false)
-
-    const amount = parseInt(str.replace(/[^\d]/, ''))
-
-    if (str && isNaN(amount)) return
-
-    setBetAmount(str ? amount : undefined)
-
-    if (user && user.balance < amount) setError('Insufficient balance')
-    else setError(undefined)
+    setBetAmount(newAmount)
   }
 
   async function submitBet() {
@@ -106,8 +98,6 @@ export function BetPanel(props: { contract: Contract; className?: string }) {
     : 0
   const estimatedReturnPercent = (estimatedReturn * 100).toFixed() + '%'
 
-  const remainingBalance = (user?.balance || 0) - (betAmount || 0)
-
   return (
     <Col
       className={clsx('bg-gray-100 shadow-md px-8 py-6 rounded-md', className)}
@@ -121,41 +111,17 @@ export function BetPanel(props: { contract: Contract; className?: string }) {
         onSelect={(choice) => onBetChoice(choice)}
       />
 
-      <div className="mt-3 mb-1 text-sm text-gray-500">
-        Amount{' '}
-        {user && (
-          <span className="float-right">
-            {formatMoney(
-              remainingBalance > 0 ? Math.floor(remainingBalance) : 0
-            )}{' '}
-            left
-          </span>
-        )}
-      </div>
-      <Col className="my-2">
-        <label className="input-group">
-          <span className="text-sm bg-gray-200">M$</span>
-          <input
-            className={clsx(
-              'input input-bordered w-full',
-              error && 'input-error'
-            )}
-            type="text"
-            placeholder="0"
-            maxLength={9}
-            value={betAmount ?? ''}
-            onChange={(e) => onBetChange(e.target.value)}
+      <div className="my-3 text-sm text-gray-500">Amount </div>
+      <AmountInput
+        inputClassName="w-full"
+        amount={betAmount}
+        onChange={onBetChange}
+        error={error}
+        setError={setError}
+        disabled={isSubmitting}
       />
-        </label>
-        {error && (
-          <div className="font-medium tracking-wide text-red-500 text-xs mt-3">
-            {error}
-          </div>
-        )}
-        {user && user.balance !== 1000 && (
-          <AddFundsButton className="self-end mt-3" />
-        )}
-      </Col>
+
+      <Spacer h={4} />
 
       <div className="mt-2 mb-1 text-sm text-gray-500">Implied probability</div>
       <Row>

web/pages/create.tsx

@@ -10,10 +10,10 @@ import { Title } from '../components/title'
 import { useUser } from '../hooks/use-user'
 import { Contract, path } from '../lib/firebase/contracts'
 import { Page } from '../components/page'
-import { formatMoney } from '../lib/util/format'
 import { AdvancedPanel } from '../components/advanced-panel'
 import { createContract } from '../lib/firebase/api-call'
 import { Row } from '../components/layout/row'
+import { AmountInput } from '../components/amount-input'
 
 // Allow user to create a new contract
 export default function NewContract() {
@@ -33,7 +33,7 @@ export default function NewContract() {
   const [description, setDescription] = useState('')
 
   const [ante, setAnte] = useState<number | undefined>(0)
-  const [anteError, setAnteError] = useState('')
+  const [anteError, setAnteError] = useState<string | undefined>()
   const [closeDate, setCloseDate] = useState('')
 
   const [isSubmitting, setIsSubmitting] = useState(false)
@@ -75,17 +75,6 @@ export default function NewContract() {
     await router.push(path(result.contract as Contract))
   }
 
-  function onAnteChange(str: string) {
-    const amount = parseInt(str.replace(/[^\d]/, ''))
-
-    if (str && isNaN(amount)) return
-
-    setAnte(str ? amount : undefined)
-
-    if (user && user.balance < amount) setAnteError('Insufficient balance')
-    else setAnteError('')
-  }
-
   const descriptionPlaceholder = `e.g. This market will resolve to “Yes” if, by June 2, 2021, 11:59:59 PM ET, Paxlovid (also known under PF-07321332)...`
 
   if (!creator) return <></>
@@ -166,33 +155,19 @@ export default function NewContract() {
               <label className="label">
                 <span className="mb-1">Subsidize your market</span>
               </label>
-
-              <label className="input-group">
-                <span className="text-sm ">M$</span>
-                <input
-                  className={clsx(
-                    'input input-bordered',
-                    anteError && 'input-error'
-                  )}
-                  type="text"
-                  placeholder="0"
-                  maxLength={9}
-                  value={ante ?? ''}
+              <AmountInput
+                className="items-start"
+                amount={ante}
+                onChange={setAnte}
+                error={anteError}
+                setError={setAnteError}
                 disabled={isSubmitting}
-                  onChange={(e) => onAnteChange(e.target.value)}
               />
-              </label>
-              <label>
-                <span className="label-text text-gray-500 ml-1">
-                  Remaining balance:{' '}
-                  {formatMoney(remainingBalance > 0 ? remainingBalance : 0)}
-                </span>
-              </label>
             </div>
 
             <Spacer h={4} />
 
-            <div className="form-control">
+            <div className="form-control items-start mb-1">
               <label className="label">
                 <span className="mb-1">Close date</span>
               </label>
@@ -208,8 +183,8 @@ export default function NewContract() {
             </div>
             <label>
               <span className="label-text text-gray-500 ml-1">
-                No new trades will be allowed after{' '}
-                {closeDate ? formattedCloseTime : 'this time'}
+                No trades allowed after this date
+                {/* {closeDate ? formattedCloseTime : 'this date'} */}
               </span>
             </label>
           </AdvancedPanel>