Fix how we show the upgrade plan button when resource sharing is enabled

[duckduckgrayduck]

This will become a problem when we merge MuckRock/documentcloud#355

A child org may not have their own plan, but their parent does. We don't correctly show that they have a credit balance inherited from their parent.

We should either show them the balance as if it was their own plan and not show the upgrade button

or

Show them the upgrade button AND show them their balance but state that this is inherited from the parent org.

Determining whether an org is premium or not is done here:

documentcloud-frontend/src/lib/api/accounts.ts

Line 118 in 0091f0c

export function isPremiumOrg(org?: Nullable<Org>): boolean {

and the logic for setting the org bar is here

documentcloud-frontend/src/lib/components/navigation/OrgMenu.svelte

Line 100 in 0091f0c

{#if isPremium && active_org.monthly_credits && active_org.credit_reset_date}

[eyeseast]

Is there an endpoint that just shows all available credits, regardless of which organization they're coming from? I worry about putting too much organizational overhead into the menus on DocumentCloud. I'd rather send people over to accounts to manage all of that if we can.

[duckduckgrayduck]

The logic for credits has already been revised to handle this in updates to the org serializer
https://github.com/MuckRock/documentcloud/pull/355/changes#diff-94f65640a193dc9dd0777af20d7072e5b75674af07ea726881241fc62d6a26bb
The credit logic on the frontend doesn't need to be touched. What needs to be decided is whether or not we show the upgrade button to orgs that have credits coming from their parent.

[eyeseast]

I think it's going to be confusing to show an upgrade link if credits are available, so it probably makes more sense to leave it off.

[duckduckgrayduck]

Ok, so the logic to show the upgrade button should remove the check for isPremium then and just rely on the monthly_credits being not 0, correct? Just this line needs updating?

documentcloud-frontend/src/lib/components/navigation/OrgMenu.svelte

Line 100 in 0091f0c

{#if isPremium && active_org.monthly_credits && active_org.credit_reset_date}

[eyeseast]

I think that's right. As long as active_org.monthly_credits gets everything, we can rely on that. There are other places people may or may not have premium features, so we may need to revisit this logic. But this is a good start.

[duckduckgrayduck]

Ok, another complication is the credit_reset_date. If the org doesn't have one, as they are using their parent's plan, should we fallback to using the parent org's credit_reset_date?

[duckduckgrayduck]

We may need to just remove the credit reset date entirely, because an org could have credits either from itself, parent, or a group it is a part of.

Edit: I opted to show the credit reset date if an org has their own plan, otherwise just hide it as to not confuse users.