feat: implement OTP input component and integrate into RuxOtp

Author: Jameson13B

src/ReturnUserExperience/OTPInput/OTPInput.tsx

@@ -0,0 +1,202 @@
+import React, { useEffect } from 'react'
+
+import { Text } from '@mxenabled/mxui'
+import Button from '@mui/material/Button'
+import { Stack, styled } from '@mui/system'
+import { TextField } from 'src/privacy/input'
+
+import { __ } from 'src/utilities/Intl'
+import styles from './otpInput.module.css'
+
+const RESEND_OTP_INTERVAL = 10
+const OTP_LENGTH = 6
+
+const getOtpDigits = (value: string) => {
+  const digits = value.replace(/\D/g, '').slice(0, OTP_LENGTH).split('')
+  return [...digits, ...new Array(OTP_LENGTH - digits.length).fill('')]
+}
+
+export const OTPInput = ({
+  onChange,
+  value,
+}: {
+  onChange: React.Dispatch<React.SetStateAction<string>>
+  value: string
+}) => {
+  const inputRefs = React.useRef<Array<HTMLInputElement | null>>(
+    Array.from({ length: OTP_LENGTH }, () => null),
+  )
+  const [seconds, setSeconds] = React.useState<number>(RESEND_OTP_INTERVAL)
+  const otpDigits = React.useMemo(() => getOtpDigits(value), [value])
+
+  useEffect(() => {
+    // This timer is a delay before the user can request a new OTP.
+    setSeconds(RESEND_OTP_INTERVAL)
+    const timer = window.setInterval(() => {
+      setSeconds((s) => {
+        if (s <= 1) {
+          clearInterval(timer)
+          return 0
+        }
+        return s - 1
+      })
+    }, 1000)
+
+    return () => clearInterval(timer)
+  }, [])
+
+  const focusInput = (targetIndex: number) => {
+    inputRefs.current[targetIndex]?.focus()
+  }
+
+  const selectInput = (targetIndex: number) => {
+    inputRefs.current[targetIndex]?.select()
+  }
+
+  const updateOtp = (updater: (digits: string[]) => void) => {
+    onChange((prev) => {
+      const digits = getOtpDigits(prev)
+      updater(digits)
+      return digits.join('')
+    })
+  }
+
+  const handleKeyDown = (event: React.KeyboardEvent<HTMLInputElement>, currentIndex: number) => {
+    switch (event.key) {
+      case 'ArrowUp':
+      case 'ArrowDown':
+      case ' ':
+        event.preventDefault()
+        break
+      case 'ArrowLeft':
+        event.preventDefault()
+        if (currentIndex > 0) {
+          focusInput(currentIndex - 1)
+          selectInput(currentIndex - 1)
+        }
+        break
+      case 'ArrowRight':
+        event.preventDefault()
+        if (currentIndex < OTP_LENGTH - 1) {
+          focusInput(currentIndex + 1)
+          selectInput(currentIndex + 1)
+        }
+        break
+      case 'Delete':
+        event.preventDefault()
+        updateOtp((digits) => {
+          digits[currentIndex] = ''
+        })
+        break
+      case 'Backspace': {
+        event.preventDefault()
+        const isEmpty = event.currentTarget.value === ''
+
+        updateOtp((digits) => {
+          if (isEmpty && currentIndex > 0) {
+            digits[currentIndex - 1] = ''
+          } else {
+            digits[currentIndex] = ''
+          }
+        })
+
+        if (isEmpty && currentIndex > 0) {
+          focusInput(currentIndex - 1)
+          selectInput(currentIndex - 1)
+        }
+        break
+      }
+      default:
+        break
+    }
+  }
+
+  const handleChange = (event: React.ChangeEvent<HTMLInputElement>, currentIndex: number) => {
+    const nextValue = event.target.value.replace(/\D/g, '').slice(-1)
+
+    updateOtp((digits) => {
+      digits[currentIndex] = nextValue
+    })
+
+    if (nextValue && currentIndex < OTP_LENGTH - 1) {
+      focusInput(currentIndex + 1)
+    }
+  }
+
+  const handlePaste = (event: React.ClipboardEvent<HTMLInputElement>, currentIndex: number) => {
+    event.preventDefault()
+
+    const pastedText = event.clipboardData
+      .getData('text/plain')
+      .replace(/\D/g, '')
+      .slice(0, OTP_LENGTH - currentIndex)
+
+    if (!pastedText) {
+      return
+    }
+
+    updateOtp((digits) => {
+      for (let index = 0; index < pastedText.length; index += 1) {
+        digits[currentIndex + index] = pastedText[index]
+      }
+    })
+
+    setTimeout(() => {
+      const focusIndex = Math.min(currentIndex + pastedText.length, OTP_LENGTH - 1)
+      focusInput(focusIndex)
+      selectInput(focusIndex)
+    }, 0)
+  }
+
+  return (
+    <>
+      <Stack alignItems="center" className={styles.container} direction="row" spacing="8px">
+        {Array.from({ length: OTP_LENGTH }, (_, index) => (
+          <OTPTextField
+            aria-label={`Digit ${index + 1} of ${OTP_LENGTH}`}
+            inputProps={{
+              maxLength: 1,
+              inputMode: 'numeric',
+              pattern: '[0-9]*',
+              autoComplete: 'one-time-code',
+            }}
+            inputRef={(ele: HTMLInputElement | null) => {
+              inputRefs.current[index] = ele
+            }}
+            key={index}
+            onChange={(event: React.ChangeEvent<HTMLInputElement>) => handleChange(event, index)}
+            onFocus={() => selectInput(index)}
+            onKeyDown={(event: React.KeyboardEvent<HTMLInputElement>) =>
+              handleKeyDown(event, index)
+            }
+            onPaste={(event: React.ClipboardEvent<HTMLInputElement>) => handlePaste(event, index)}
+            size="small"
+            value={otpDigits[index]}
+            variant="outlined"
+          />
+        ))}
+      </Stack>
+
+      {seconds > 0 ? (
+        <Text truncate={false} variant="caption">
+          {__('Resend code in (%1 seconds)', seconds)}
+        </Text>
+      ) : (
+        <Button fullWidth={true} onClick={() => {}} size="small" variant="text">
+          {__('Resend code')}
+        </Button>
+      )}
+    </>
+  )
+}
+
+const OTPTextField = styled(TextField)(() => ({
+  height: '60px',
+  '& .MuiInputBase-input': {
+    textAlign: 'center',
+    fontSize: '23px',
+  },
+  '& .MuiOutlinedInput-root': {
+    height: '100%',
+  },
+}))

src/ReturnUserExperience/OTPInput/otpInput.module.css

@@ -0,0 +1,3 @@
+.container {
+  margin: 40px 0 0;
+}

src/ReturnUserExperience/ReturnUserExperience.tsx

@@ -74,20 +74,6 @@ export const ReturnUserExperience = React.forwardRef(() => {
         />
       )}
 
-      {view === RUXViews.PHONE_NUMBER && (
-        <RuxPhoneNumber
-          setUserEnteredPhone={setUserEnteredPhone}
-          userEnteredPhone={userEnteredPhone}
-        />
-      )}
-
-      {view === RUXViews.PHONE_NUMBER && (
-        <RuxPhoneNumber
-          setUserEnteredPhone={setUserEnteredPhone}
-          userEnteredPhone={userEnteredPhone}
-        />
-      )}
-
       {view === RUXViews.OTP && <RuxOtp />}
 
       {view === RUXViews.LIST && <RuxList />}

src/ReturnUserExperience/RuxOtp.tsx

@@ -5,18 +5,31 @@ import Button from '@mui/material/Button'
 
 import { __ } from 'src/utilities/Intl'
 import styles from './returnUserExperience.module.css'
+import { OTPInput } from 'src/ReturnUserExperience/OTPInput/OTPInput'
+
+export const RuxOtp = () => {
+  const [otp, setOtp] = React.useState('')
 
-export const RuxPhoneNumber = () => {
   return (
     <>
-      {/* OTP Style Input */}
-      OTP Style Input
-      <Stack className={styles.buttonContainer} spacing="8px">
-        <Button>{__('Get code')}</Button>
-        <Text variant="subtitle2">Resend code in (10 seconds)</Text>
+      <Stack className={styles.titleContainer} spacing="6px">
+        <Text bold={true} className={styles.centerText} truncate={false} variant="h2">
+          {__('Verify your phone number')}
+        </Text>
+        <Text className={styles.centerText} truncate={false} variant="subtitle1">
+          {__('Enter the code sent to ••• ••• 1234.')}
+        </Text>
+      </Stack>
+
+      <OTPInput onChange={setOtp} value={otp} />
+
+      <Stack className={styles.buttonContainer}>
+        <Button onClick={() => {}} variant="contained">
+          {__('Continue')}
+        </Button>
       </Stack>
     </>
   )
 }
 
-export default RuxPhoneNumber
+export default RuxOtp