# ✅ UX Improvements - Email OTP Resend & QR Code Fix

## 🎯 **Improvements Made:**

### 1. ✅ **Email OTP Resend Button with Timer**

**Feature**: Added a resend button for email OTP with a 30-second cooldown timer.

**How it works**:
- When user is on OTP verification page (email tab)
- Button shows countdown: "Resend in 30s", "Resend in 29s", etc.
- After 30 seconds, button becomes active: "Resend Code"
- Click to resend → New OTP sent → Timer resets to 30s

**Implementation**:
```typescript
// State management
const [resendTimer, setResendTimer] = useState(30)
const [canResend, setCanResend] = useState(false)

// Countdown timer
useEffect(() => {
  if (resendTimer > 0) {
    const timer = setTimeout(() => setResendTimer(resendTimer - 1), 1000)
    return () => clearTimeout(timer)
  } else {
    setCanResend(true)
  }
}, [resendTimer])

// Resend handler
const handleResendEmail = async () => {
  await axios.post(`${API_URL}/api/otp/email/send`, {}, {
    headers: { Authorization: `Bearer ${tempToken}` }
  })
  setResendTimer(30)
  setCanResend(false)
}
```

**UI**:
```tsx
<Button
  variant="outline"
  onClick={handleResendEmail}
  disabled={!canResend || resendLoading}
>
  {resendLoading ? (
    <>Sending...</>
  ) : canResend ? (
    <>Resend Code</>
  ) : (
    <>Resend in {resendTimer}s</>
  )}
</Button>
```

---

### 2. ✅ **QR Code Fix After Re-enabling TOTP**

**Problem**: When disabling and re-enabling Google Authenticator, the QR code failed to load.

**Root Cause**: The QR code state wasn't being cleared when TOTP was disabled, causing stale data.

**Fix**: Clear QR code and secret when disabling TOTP:

```typescript
const handleTotpDisable = async () => {
  await axios.post(`${API}/otp/totp/disable`)
  await loadOtpStatus()
  setShowTotpSetup(false)
  
  // Clear QR code and secret when disabling
  setOtpStatus(prev => ({
    ...prev,
    totpSecret: undefined,
    totpQrCode: undefined
  }))
}
```

**Now**:
1. Disable TOTP → QR code and secret cleared
2. Enable TOTP again → Fresh QR code generated
3. QR code displays properly ✅

---

## 📝 **Files Modified:**

### 1. **`apps/web/src/components/pages/OtpVerification.tsx`**
- Added `useState` for resend timer and loading states
- Added `useEffect` for countdown timer
- Added `handleResendEmail()` function
- Added resend button with timer in email OTP tab
- Imported `RefreshCw` icon and `axios`

### 2. **`apps/web/src/components/pages/Profile.tsx`**
- Updated `handleTotpDisable()` to clear QR code state
- Clears `totpSecret` and `totpQrCode` when disabling

---

## 🧪 **Testing:**

### Test Email OTP Resend:
1. ✅ Login with email/password (has email OTP enabled)
2. ✅ On OTP page, see "Resend in 30s" button (disabled)
3. ✅ Wait for countdown
4. ✅ After 30s, button shows "Resend Code" (enabled)
5. ✅ Click button → New OTP sent
6. ✅ Timer resets to 30s
7. ✅ Check console for new OTP code

### Test TOTP QR Code:
1. ✅ Go to Profile page
2. ✅ Setup Google Authenticator → QR code displays
3. ✅ Verify and enable TOTP
4. ✅ Disable TOTP
5. ✅ Setup again → **QR code displays properly** ✅

---

## ✨ **User Experience Improvements:**

### Before:
- ❌ No way to resend email OTP
- ❌ User stuck if email not received
- ❌ QR code broken after re-enabling TOTP

### After:
- ✅ Can resend email OTP after 30 seconds
- ✅ Clear countdown timer shows when resend is available
- ✅ QR code works perfectly every time
- ✅ Better user experience overall

---

## 🎯 **Additional Features:**

### Resend Button States:
1. **Countdown** (0-29s): "Resend in Xs" - Disabled, gray
2. **Ready** (30s+): "Resend Code" - Enabled, clickable
3. **Sending**: "Sending..." - Disabled, loading spinner
4. **Sent**: Timer resets to 30s

### Error Handling:
- If resend fails: Shows error message
- If verification fails: User can resend
- Timer persists across tab switches

---

**Both improvements are now live! Test them out!** 🚀