Migrate AccountTrackerController to BaseController v2

[mcmire]

What is this about?

Following the Wallet Framework team's OKRs for Q3 2024, we want to bring AccountTracker up to date with our latest controller patterns.

Scenario

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Design

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Technical Details

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Threat Modeling Framework

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Acceptance Criteria

• A constant called controllerName exists which holds the name of the controller.
• A constant called controllerMetadata exists which holds the metadata for the state.
• The default state object is extracted to a function called getDefaultAccountTrackerControllerState.
• The class is renamed to AccountTrackerController and relocated to app/scripts/controllers along with its test file.
• AccountTrackerController inherits from BaseController.
  • The AccountTrackerController has a constructor which takes a partial state option (instead of initState) and a messenger option (instead of controllerMessenger), among other options.
  • The default state passed to ObservableStore (initState) is extracted and wrapped in a getDefaultAccountTrackerControllerState function.
  • The constructor obtains the current chain ID from the NetworkController (NetworkController:getState -> selectedNetworkClientId -> NetworkController:getNetworkClientById -> configuration.chainId) instead of taking a getCurrentChainId option.
  • The constructor uses the NetworkController:getNetworkClientById messenger action instead of taking a getNetworkClientById option.
  • The constructor uses the PreferencesController:getState messenger action instead of taking a preferencesController option.
  • The constructor uses the OnboardingController:getState messenger action and OnboardingController:stateChange messenger event instead of taking a onboardingController option.
  • this.state is used to access state instead of this.store.getState.
  • this.update is used to update state instead of this.store.updateState.
• Supporting types exist.
  • The AccountTrackerControllerState type exists and represents the current shape of the state object.
  • The AccountTrackerControllerGetStateAction and AccountTrackerControllerStateChangeEvent types exist.
  • The AccountTrackerControllerActions and AccountTrackerControllerEvents types exist.
  • The AllowedActions and AllowedEvents types exist.
  • The AccountTrackerControllerMessenger type exists and expects NetworkController:getState, NetworkController:getNetworkClientById, PreferencesController:getState, OnboardingController:getState, and OnboardingController:stateChange to be allowed.
• The tests are updated to follow suit.
  • buildAccountTracker is renamed to buildAccountTrackerController.
  • buildAccountTrackerController pre-registers action handlers using mock functions and returns those action handler mocks to be customized in tests.
  • accountTrackerController.state is used to access state instead of accountTrackerController.store.getState().

Stakeholder review needed before the work gets merged

• Engineering (needed in most cases)
• Design
• Product
• QA (automation tests are required to pass before merging PRs but not all changes are covered by automation tests - please review if QA is needed beyond automation tests)
• Security
• Legal
• Marketing
• Management (please specify)
• Other (please specify)

References

• Ensure that all controllers used across clients are using BaseControllerV2 core#1509