Page Comparison

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• How do we keep GPS and BTE separate enough that one will not accidentally turn on via a release?

  • Deploying an app that doesn’t have one of the assets enabled will make it so we can’t request it, IIRC. Apple and Android won’t accept a build that requests permissions it doesn’t have access to.

• How would i18n work?

Options

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Two RN heads, shared packages with yarn workspaces or lerna

• Each “app” contains a distinct react-native root.

• Tracking provider is a service in each app

• Views are mostly the same, and can be configured with props

• “Containers” abstract out the difference between apps, that is… MainContainer listens to the GPS/BTE TrackingService, and reports such “state” down via props to a shared Main component

  • Main switches between all the core “No known exposure”, “tracking disabled” states.

• When functionality is very different, those components remain in the app directory, not in shared. e.g. Share location history might be different.

# existing app
gps/
  app/
    services/
      GpsService.js
    views/
      # fetch state from service, but pass to shared view
      MainContainer.js
      ExposureHistoryContainer.js
      ShareLocation.js # different, no shared component
    App.js
    ...
  android/
  ios/
  .env
  .env.release

# BT app
bte/
  app/
    services/
      GaeService.js
    views/
      ShareLocation.js # very different, no shared comp
    App.js
    ...
  android/
  ios/
  .env
  .env.release
  
# shared packages via yarn workspaces
packages/
  ux/
    Button.js
    IconButton.js
    NavWrapper.js
  # shared views, could work. We could have containers around them in app land ^
  views/
    main/
      NoExposure.js
      UnknownExposure.js
  services/
    # would there even be shared services?
    # language.js?

// gpd/app/views/MainContainer.js
import { GpsService } from '../services/gps_service';
import { Main } from 'safe-paths-views';
import { Button } from 'safe-paths-core-ux'; // or whatever

export const MainController = () => {
  // assume useEffect
  const {canTrack, hasExposure} = await GpsService.checkStatus();
  
  return (
    <Main canTrack={canTrack} hasExposure={hasExposure} />
  );
}