Apple shortcut for weekly note

Things I have tried

I predominantly use my iPhone for obsidian. I currently have an Apple shortcut to append the markdown file for daily note, and this works great for interstitial style notes throughout the day as I can access this from my iOS home screen. I have been unable to come up with a way for this to work for weekly notes.

What I’m trying to do

I would like an Apple shortcut to append to my weekly note. With daily note it is easy since I have the shortcut pull up the date in the format of my daily note, and since I have the note made in the AM it already exists. For weekly notes since it will say 2022-W32 for a whole week, I am not sure how to automate this to have it search for 2022-W32 this week and on Sunday automatically move to note 2022-W33. I can currently updating my shortcut every week with the new name of the weekly note.