Copy observations across programs

[cquiroz]

It seems that is not currently supported though you can clone observations inside within a program

[swalker2m]

Implies copying referenced targets and finder charts etc. across programs as well. Is there a Shortcut request for this?

[cquiroz]

https://app.shortcut.com/lucuma/story/1672/make-copy-paste-work-across-browser-tabs

[toddburnside]

For the targets, finder charts, etc., we'd probably also want to deal with duplication issues. For example, if a program has 2 observations that share a target, and we copied them one after the other into another program, we'd still want just one target in the second program. There are other situations, of course, such as a user importing the same list of targets and importing them into 2 programs, then copying observations between them.

For attachments, we'd need a way to detect duplicates. AWS returns a hash of some sort as the result of uploading a file, but I think that might depend on the PartSize used for the upload. We could also calculate a hash with fs2 as we upload. Anyway, if we stored a hash in the DB, we could use that to check for duplicates. We'd also have to deal with name collisions for copied attachments. The AWS copyObject method would allow us to make copies of the attachment.