public async Task ProcessFormAsync()
{
if (_addressId == null)
{
// Add Address but check for duplicate
var existingAddresses = await _checkoutDataRepository.GetAllShippingAddressesAsync();
var matchingExistingAddress = Address.FindMatchingAddress(Address, existingAddresses);
if (matchingExistingAddress != null)
{
Address = matchingExistingAddress;
}
else
{
await _checkoutDataRepository.SaveShippingAddressAsync(Address);
}
}
else
{
// Updated existing address
await _checkoutDataRepository.SaveShippingAddressAsync(Address);
}
}
