From d4df64c2de62254126d6a06d88c353d49b53a767 Mon Sep 17 00:00:00 2001
From: N Balgopal Patro <46865367+BalgopalPatro@users.noreply.github.com>
Date: Mon, 31 Oct 2022 23:22:22 +0530
Subject: [PATCH] Create OTP.jsx

---
 open-source/src/pages/OTP.jsx | 98 +++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 open-source/src/pages/OTP.jsx

diff --git a/open-source/src/pages/OTP.jsx b/open-source/src/pages/OTP.jsx
new file mode 100644
index 0000000..c8935c4
--- /dev/null
+++ b/open-source/src/pages/OTP.jsx
@@ -0,0 +1,98 @@
+import { Input, Stack } from '@mui/material';
+import { useEffect, useRef, useState } from 'react';
+
+const OtpInput = ({ value, setValue, ...others }) => {
+  const [otp0, setOtp0] = useState('');
+  const [otp1, setOtp1] = useState('');
+  const [otp2, setOtp2] = useState('');
+  const [otp3, setOtp3] = useState('');
+
+  const inputRef0 = useRef();
+  const inputRef1 = useRef();
+  const inputRef2 = useRef();
+  const inputRef3 = useRef();
+
+  const inputs = [
+    {
+      name: 'otp0',
+      value: otp0,
+      inputRef: inputRef0,
+      setValue: (val) => setOtp0(val),
+      focusNext: () => inputRef1.current.focus(),
+      focusPrevious: () => {},
+    },
+    {
+      name: 'otp1',
+      value: otp1,
+      inputRef: inputRef1,
+      setValue: (val) => setOtp1(val),
+      focusNext: () => inputRef2.current.focus(),
+      focusPrevious: () => inputRef0.current.focus(),
+    },
+    {
+      name: 'otp2',
+      value: otp2,
+      inputRef: inputRef2,
+      setValue: (val) => setOtp2(val),
+      focusNext: () => inputRef3.current.focus(),
+      focusPrevious: () => inputRef1.current.focus(),
+    },
+    {
+      name: 'otp3',
+      value: otp3,
+      inputRef: inputRef3,
+      setValue: (val) => setOtp3(val),
+      focusNext: () => {},
+      focusPrevious: () => inputRef2.current.focus(),
+    },
+  ];
+
+  const handleChange = (e, idx) => {
+    if (e.key === 'Backspace') {
+      inputs[idx].setValue('');
+    }
+    if (e.key === 'Backspace' && inputs[idx].value === '' && idx > 0) {
+      inputs[idx - 1].setValue('');
+      inputs[idx].focusPrevious();
+    }
+    if (/[0-9]/.test(e.key)) {
+      inputs[idx].setValue(e.key);
+      inputs[idx].focusNext();
+    }
+  };
+
+  useEffect(() => {
+    const otp = otp0 + otp1 + otp2 + otp3;
+    setValue(otp);
+  }, [otp0, otp1, otp2, otp3, setValue]);
+
+  return (
+    <Stack direction="row" justifyContent="space-between" gap="6px">
+      {inputs.map((input, idx) => (
+        <Input
+          key={idx}
+          name={input.name}
+          value={input.value}
+          inputRef={input.inputRef}
+          onKeyUp={(e) => handleChange(e, idx)}
+          sx={{
+            height: '80px',
+            fontFamily: 'Circular Std Medium',
+            fontSize: '48px',
+            lineHeight: '60px',
+            fontWeight: 500,
+            letterSpacing: '-0.02em',
+            color: 'primary.600',
+          }}
+          inputProps={{
+            style: {
+              textAlign: 'center',
+            },
+          }}
+        />
+      ))}
+    </Stack>
+  );
+};
+
+export default OtpInput;