Penny should save a list of images submitted in DMs

[adamsullovey]

Finished drawings are sent to Penny as DMs (#23 (comment))

Maybe if you send a file with the comment 'submit drawing', that will trigger penny to save some info about the file (image URL on Slack's hosting & who submitted it at least) to a text file, similar to prompts. That text file can be read by gallery generator or penny later.

There's also files.list API call that I haven't tried out yet.

There might be permissions issues with the files if they are intended for only the submitter & penny to view. Maybe we'll have to use the API to change permissions, or copy images to another host when they are shown in a gallery.

[adamsullovey]

I started this here:
https://github.com/the-heap/penny/compare/master...adamsullovey:bot-saves-drawing-submissions?expand=1

Some things up for debate:

• should all attachments shared with penny be considered image submissions?
• if not, is 'submit drawing' a good prompt for the user?
• does this work well on phones for people who take pictures of their drawings?

[teesloane]

I think that submit drawing should be a good place to start with.

I think if we can work with just images that would be good too.

---

Just looking over some of the code.

Do you think we should define function handleDrawingSubmission(message)
outside of the receive message function? onReceiveMessage is called, handleDrawingSubmission is redefined. Might make sense to move it outside of the function. Could also keep the code a bit more organized.

Thoughts?

[adamsullovey]

function moved! That was easy and sensible. PR time! no wait, it still needs to filter out files that aren't attachments in case someone submits an mp3 or something else unexpected.

[teesloane]

Good call; nice catch! looking forward to the PR!