Help with Identifying Broken Latch on Patio Door

Hello, the locking latch or lever on my patio door has broken off. I did remove the whole handle and lock mechanism which I have attached pictures. I'm not sure if I just need the white handles or if I need the whole lock? I did go to the local hardware store however they did not have the duel locking mechanism. They suggested that I reach out to you to see if you guys have any suggestions. I have attached several different photos of several different angles of the parts. Please feel free to contact me if you have any questions or concerns.

Thank you,

Heather

It's not the metal hooks that don't work it's the plastic lever that you moved to move the metal hooks to lock into place. Hopefully that makes sense. So I think that as part of the handle and not the metal locking mechanism.