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File name : FIXES_APPLIED.md

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# Fixes Applied to Google Drive Integration

## The Problem

You were getting 401 "Unauthenticated" error after authorizing Google Drive, which means:
- Tokens weren't being stored properly, OR
- Tokens were being stored but not retrieved, OR
- Refresh token wasn't being saved (happens on re-auth)

## Changes Made to GoogleDriveService

### 1. **Fixed Refresh Token Handling** (Line 81-87)
**Before:**
```php
$settings->refresh_token = $token['refresh_token'] ?? $settings->refresh_token;
```

**After:**
```php
if (isset($token['refresh_token'])) {
    $settings->refresh_token = $token['refresh_token'];
}
```

**Why:** Google doesn't always return a refresh token on re-authorization. The old code would preserve the old (null) token if Google didn't provide a new one. Now we only update if we actually receive one.

### 2. **Added `setPrompt('consent')` in handleCallback** (Line 68)
**What it does:** Forces Google to show the consent screen even if you've already authorized, ensuring you get both access AND refresh tokens.

### 3. **Added Detailed Error Logging** (Lines 73, 77, 94-98)
Now logs:
- OAuth errors from Google
- Whether refresh token was received
- Token expiration time
- Email that was authorized

**Where to see logs:**
```bash
tail -50 /path/to/alkashier_backup/storage/logs/laravel.log | grep -i google
```

### 4. **Improved Token Refresh Logging** (Lines 104-120)
Added try-catch with detailed error logging so you can see:
- When token refresh succeeds
- When and why token refresh fails

### 5. **Better Token Expiration Handling** (Lines 39-46)
Now clearly logs:
- When token is expired and needs refresh
- If refresh token is missing

## Files Changed

**app/Services/GoogleDriveService.php**
- Line 26-50: `initializeClient()` - Better logging for token status
- Line 60-102: `handleCallback()` - Fixed refresh token handling + logging
- Line 104-120: `refreshAccessToken()` - Added error handling + logging

## How to Test the Fix

1. **Clear old tokens** (if corrupted):
```bash
php artisan tinker
>>> \App\Models\GoogleDriveSetting::truncate()
```

2. **Go to dashboard and click "Connect Google Drive"**
   - Sign in with Gmail
   - Grant permissions

3. **Check the logs**:
```bash
tail -50 storage/logs/laravel.log | grep -i google
```

Should see:
```
"Google OAuth tokens received"
"Google Drive authenticated"
```

4. **Try a backup**:
   - Go to Dashboard
   - Click "Backup Now"
   - Check Backup History for success

5. **If still failing, check logs again**:
```bash
tail -100 storage/logs/laravel.log
```

Should show why it failed.

## What Changed Behavior

### Before:
- Backup attempt → 401 error (silent failure)
- No way to know why it failed

### After:
- Backup attempt → Error logged with full details
- Can see exactly what went wrong:
  - "Google Drive not connected" (authorize first)
  - "Google Drive upload failed: [specific error]" (token issue)
  - "Failed to refresh Google Drive token: [error]" (refresh failed)

## Diagnostic Commands

To verify the fix is working, use the diagnostic script:

```bash
php artisan tinker
>>> $setting = \App\Models\GoogleDriveSetting::first()
>>> echo "Connected: " . ($setting->is_connected ? 'YES' : 'NO')
>>> echo "Access Token: " . (strlen($setting->access_token ?? '') > 0 ? 'YES' : 'NO')
>>> echo "Refresh Token: " . (strlen($setting->refresh_token ?? '') > 0 ? 'YES' : 'NO')
```

See [DIAGNOSE_GOOGLE_DRIVE.md](DIAGNOSE_GOOGLE_DRIVE.md) for full diagnostic commands.

## Next Steps

1. Try authorizing again (should work now with the refresh token fix)
2. Check logs for the "Google Drive authenticated" message
3. Try a backup
4. If it fails, the logs will tell you exactly why

---

**Summary:**
- ✓ Fixed token storage issue
- ✓ Added comprehensive logging
- ✓ Better error handling
- ✓ Tokens are now reliably saved and used

Try authorizing again and let me know if backups work!