This is a general link for logging into the billing system on behalf of
a server, but it's tied to the .contact_email and takes the user
straight to the /deactivate/ page via the next_page mechanism.
Pulls the forms for updating the billing collection method and
generally modifying the current plan to a separate template.
Uses the shared template to render these forms for both the
remote server and any attached remote realms.
If there are remote realms attached to the remote server, adds
the forms to be able to update sponsorship requests, approve
sponsorship and update a discount.
When a self-hosted Zulip server does a data export and then import
process into a different hosting environment (i.e. not sharing the
RemoteZulipServer with the original, we'll have various things that
fail where we look up the RemoteRealm by UUID and find it but the
RemoteZulipServer it is associated with is the wrong one.
Right now, we ask user to contact support via an error page but
might develop UI to help user do the migration directly.
The separation of files no longer makes any sense, with some of these
forms being used by the RemoteRealm and legacy server flows together.
And in general we don't need to scatter this stuff across files.
Also, the unifying of the class of loader on the buttons, fixes a visual
bug on the final "Confirm login" page where you would see it spinning
for half a second upon loading the page, until the .hide() code
triggered.
The way the flow goes now is this:
1. The user initiaties login via "Billing" in the gear menu.
2. That takes them to `/self-hosted-billing/` (possibly with a
`next_page` param if we use that for some gear menu options).
3. The server queries the bouncer to give the user a link with a signed
access token.
4. The user is redirected to that link (on `selfhosting.zulipchat.com`).
Now we have two cases, either the user is logging in for the first time
and already did in the past.
If this is the first time, we have:
5. The user is asked to fill in their email in a form that's shown,
pre-filled with the value provided inside the signed access token.
They POST this to the next endpoint.
6. The next endpoint sends a confirmation email to that address and asks
the user to go check their email.
7. The user clicks the link in their email is taken to the
from_confirmation endpoint.
8. Their initial RemoteBillingUser is created, a new signed link like in
(3) is generated and they're transparently taken back to (4),
where now that they have a RemoteBillingUser, they're handled
just like a user who already logged in before:
If the user already logged in before, they go straight here:
9. "Confirm login" page - they're shown their information (email and
full_name), can update
their full name in the form if they want. They also accept ToS here
if necessary. They POST this form back to
the endpoint and finally have a logged in session.
10. They're redirected to billing (or `next_page`) now that they have
access.
For the last form (with Full Name and ToS consent field), this pretty
shamelessly re-uses and directly renders the
corporate/remote_realm_billing_finalize_login_confirmation.html
template. That's probably good in terms of re-use, but calls for a
clean-up commit that will generalize the name of this template and the
classes/ids in the HTML.
* Reformat "This is a legacy plan" notice on billing page.
* Add a link to the plan name on upgrade page title.
* Tweak discount style on billing page.
* Add line break to server login page title.
* Match server login page title and tab title.
* For free trial, don't show number of licenses for current billing period.
* For free trial scheduled to downgrade, don't show number of
licenses for next billing period.
Use of `string_id` in the sponsorship request email content was
removed in commit d3834f8b9, but it is still used in the email
subject.
Updates the email subject to use the billing_entity_display_name,
which is still the Realm.string_id for Zulip Cloud organizations.
Sets this string as "billing_entity" in the context and subject
template.
Moves the section in support views for any current plan details
to a new template: `templates/analytics/current_plan_details.html`.
Also, updates the PlanData dataclass to have a boolean that checks
if the current plan tier is the self-hosted legacy plan.