A4A > Referrals: Implement client auth

[yashwin]

Closes https://github.com/Automattic/jetpack-genesis/issues/374

Proposed Changes

This PR

• Implements the client authentication UI for A4A Referrals.
• Removes some code that are no more required.

NOTE:

• Design

This is the client auth implementation. Currently, the agency users can see the client UI for testing purposes. We will disable it once everything is implemented. While this is not the ideal way to implement this. We decided to go ahead with this for the MVP (CC @vitozev)

Testing Instructions

1. Check out the branch and start the server.
2. Set the isClient to false here: https://github.com/Automattic/wp-calypso/pull/91640/files#diff-90a95b186e56a1d11455fff699d8237d3fa7bb6da1d8eba9583518ead6be10b5R32
3. Visit /client/subscriptions & verify you are redirected to /overview.
4. Now, set the isClient to true > Visit /client/subscriptions
5. Verify that you see the page below, which includes two menu items: Your Subscriptions and Payment Methods.Ideally, you will be directed to /overview if you have an agency account.

Pre-merge Checklist

• Has the general commit checklist been followed? (PCYsg-hS-p2)
• Have you written new tests for your changes?
• Have you tested the feature in Simple (P9HQHe-k8-p2), Atomic (P9HQHe-jW-p2), and self-hosted Jetpack sites (PCYsg-g6b-p2)?
• Have you checked for TypeScript, React or other console errors?
• Have you used memoizing on expensive computations? More info in Memoizing with create-selector and Using memoizing selectors and Our Approach to Data
• Have we added the "[Status] String Freeze" label as soon as any new strings were ready for translation (p4TIVU-5Jq-p2)?
• For changes affecting Jetpack: Have we added the "[Status] Needs Privacy Updates" label if this pull request changes what data or activity we track or use (p4TIVU-aUh-p2)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-110604

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-110604&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-110604&env=a8c-for-agencies

[matticbot]

This PR modifies the release build for the following Calypso Apps:

For info about this notification, see here: PCYsg-OT6-p2

• notifications
• wpcom-block-editor

To test WordPress.com changes, run install-plugin.sh $pluginSlug add/a4a/client-auth-implementation on your sandbox.

[matticbot]

Here is how your PR affects size of JS and CSS bundles shipped to the user's browser:

App Entrypoints (~576 bytes removed 📉 [gzipped])

name           parsed_size           gzip_size
entry-stepper      -2641 B  (-0.1%)     -576 B  (-0.1%)
entry-main         -2641 B  (-0.1%)     -576 B  (-0.1%)

Common code that is always downloaded and parsed every time the app is loaded, no matter which route is used.

Sections (~40 bytes removed 📉 [gzipped])

name                                parsed_size           gzip_size
a8c-for-agencies-client                  -281 B  (-0.2%)      -62 B  (-0.1%)
a8c-for-agencies-sites                    -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies-settings                 -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies-referrals                -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies-purchases                -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies-plugins                  -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies-partner-directory        -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies-overview                 -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies-migrations               -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies-marketplace              -35 B  (-0.0%)      +19 B  (+0.0%)
a8c-for-agencies                          -35 B  (-1.3%)      +22 B  (+1.9%)

Sections contain code specific for a given set of routes. Is downloaded and parsed only when a particular route is navigated to.

Legend

What is parsed and gzip size?

Parsed Size: Uncompressed size of the JS and CSS files. This much code needs to be parsed and stored in memory.
Gzip Size: Compressed size of the JS and CSS files. This much data needs to be downloaded over network.

Generated by performance advisor bot at iscalypsofastyet.com.

[jkguidaven]

Tested it and can confirm the changes work as expected based on the test instructions. I left a few comments, but they are not blockers. 🚢