ursusursus

class Presenter<S>(state: S) {
    private val _state = BehaviorRelay.createDefault(state)
    val state: Observable get() = _state

    protected fun setState(reducer: S.() -> S) {
        // Enforce main thread to avoid synchronization
        //
        val oldState = stateRelay.value!!
        stateRelay.accept(oldState.reducer())
    }

ursusursus

@AppScope
@Component(modules = [..., MessageModule::class])
interface AppComponentImpl : AppComponent, Feature1AppComponent, Feature2AppComponent, ...

ursusursus

@AppScope
@Component(modules = [..., MessageModule::class])
interface AppComponentImpl : AppComponent, Feature1AppComponent, Feature2AppComponent, ...

ursusursus

interface Feature1AppComponent : AppComponent {  <------
    val messageRepository: MessageRepository
}

@ChatControllerScope
@Component(
    dependencies = [Feature1AppComponent::class], <------
    modules = [Feature1ControllerModule::class]
)
internal interface Feature1ControllerComponent {

ursusursus

@Feature1ControllerScope
@Component(dependencies = [???::class], modules = [Feature1Module::class])
interface Feature1ControllerComponent {
    val viewModel: InviteViewModel
    ...
}

ursusursus

                    :app
      _______________/__________________
     /         /        /              /
:feature1 :feature2 :feature3 ... :featureN
   /_________/________/______________/
       /             /              /
   :messages        /              /
      /____________/______________/
                  /
               :base

ursusursus

interface Feature1AppComponent : AppComponent {
    val messageRepository: MessageRepository
}

ursusursus

                    :app
      _______________/__________________
     /         /        /              /
:feature1 :feature2 :feature3 ... :featureN
   /_________/________/______________/
                  /
               :base

ursusursus

@Module
object MessageModule {

    @AppScope
    @Provides
    @JvmStatic
    fun messageRepository(...): MessageRepository {
        return MessageRepository(...)
    }
}

ursusursus

@Module
object MessageModule {
    @AppScope
    @Provides
    @JvmStatic
    fun messageModule(...): MessageRepository {
        return MessageRepository(...)
    }
}