Does 'but for' mean:
'If we had X (but we didn't), Y would have been the consequence'?
Or can it also mean; because we had X, as a result Y happened?
Some different examples of but for:
But for a cup coffee, it was to be a productive day of writing. Unfortunately, I'd run out, and spent the day craving.
But for the glass of wine I had dinner, the house work didn't get done.
But for the glass of wine I had for dinner, I would have got the house work done
What is the correct usage of "but for"?