@DependencyGraph
interface AppGraph {
  val httpClient: HttpClient

  @Provides
  private fun provideFileSystem(): FileSystem = FileSystem.SYSTEM
}

@Inject
class HttpClient(private val fileSystem: FileSystem)

@Inject
@Composable
fun App(circuit: Circuit)

interface NavigationEventDispatcherOwner {

    val navigationEventDispatcher: NavigationEventDispatcher
}

class NavigationEventDispatcher(
    private val fallbackOnBackPressed: (() -> Unit)?,
    private val onHasEnabledCallbacksChanged: ((Boolean) -> Unit)?,
)
    // Добавления callback чтобы слушать когда произйдет нажатие "Назад"
    fun addCallback(
        callback: NavigationEventCallback,
        priority: NavigationEventPriority = NavigationEventPriority.Default
    )

    fun dispatchOnStarted(event: NavigationEvent)

    fun dispatchOnProgressed(event: NavigationEvent)

    fun dispatchOnCompleted()

    fun dispatchOnCancelled()
}

class MyActivity : ComponentActivity() {
    
    init {
        navigationEventDispatcher.addCallback(
            callback = object : NavigationEventCallback(
                isEnabled = true,
                priority = NavigationEventPriority.Default
            ) {
                override fun onEventCompleted() {
                    // Back сделан
                }
            },
            priority = NavigationEventPriority.Default
        )
    }
}