Re-fetch quota when it makes sense

[kulmann]

Steps to reproduce

1. Look at personal quota (user-menu) or project space quota (right sidebar)
2. Upload or delete files / folders
3. Repeat step 1

Expected behaviour

The respective quota info should reflect the changes made in (2)

Actual behaviour

Quota info remains unchanged

Possible solutions

• we could re-fetch the respective quota after IO batches of operations are done
• we could use the client-side available filesize info to re-calculate the quota info instead of re-fetcing the quota to save network requests

[pascalwengerter]

Tried doing some investigation. Some finds

• we do fetch the quota upon completed upload on

  web/packages/web-app-files/src/components/AppBar/CreateAndUpload.vue

  Line 328 in 8997826

  this.SET_QUOTA(user.quota)

  - however, this only works in oC10 for me, oCIS seems to always return the same (relative) quota; it also sometimes sends a lot of requests to re-fetch user/quota information
• we should probably fetch it after emptying the (personal) trashbin or deleting resources there. Other web client interactions than uploading and (ultimately) deleting resources don't have implications on the quota, amirite?

[tbsbdr]

decision: refetch quota after upload has finished.

[AlexAndBear]

@tbsbdr whats about deleting files?

[tbsbdr]

iirc @kulmann and I discussed that the problem is, that we don't want to generate too many requests just to have the quota up-to-date.

refetch quota after deletion of a file would be cool, sure but in case of batch-delete we would need some debounce I guess.

So: the quota should get updated after delete-operation only if the costs are low I'd say. whats your opinion, @kulmann ?

[AlexAndBear]

Checked that, the cost is low, as I only make one request after batch delete

[AlexAndBear]

Relative (that's the percentage view) in ocis gets wrong calculated, see owncloud/ocis#4357