Ardor: How to decide if an asset can be send?

Ardor: How to decide if an asset can be send?

My (Javascript) frontend needs to decide whether the user can send an Ardor/Ignis asset in his account. My code checked for:

quantityQNT >= amount_to_send

But I realise that this doesn't work if the user has the asset offered on the asset exchange.

So just checking for unconfirmedQuantityQNT wouldnt be clever either, as it might want to send an asset which ownership never confirms (phasing or fork).

Would it be safe to check this way:

min(quantityQNT,unconfirmedQuantity) >= amount_to_send

Thanks for your opinions

http://bit.ly/2AcMAcK

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