Android MVVM 这个逻辑的最佳层是什么

I am fetching images by using retrofit with MVVM Architecture. Now I want to add some features like image editing or compression and uploading.

My question is . For MVVM architecture, is the business logic for these features a use case?

• domain

  • usecase
    • ImageCompressionUseCase.kt
    • UploadImageUseCase.kt

• ui

  • ImageCompressionViewModel.kt
  • ImageCompressionFragment.kt
  • UploadImageViewModel.kt
  • UploadImageFragment.kt

My brain says it's use cases but I'm a bit hesitant :)

ImageCompressionUseCase.kt

@Singleton
class ImageCompressionUseCase @Inject constructor(@ApplicationContext private val context: Context) {

    suspend operator fun invoke(name:String) : Result<File> = runCatching {

        withContext(Dispatchers.IO){

            val output = File(context.filesDir,"$name.png")

            // some logic to image compression

            output
        }
    }
}

ImageCompressionViewModel.kt

@HiltViewModel
class ImageCompressionViewModel @Inject constructor(private val imageCompressionUseCase: ImageCompressionUseCase) : ViewModel() {

    private val _isLoading = MutableLiveData<Boolean>()
    val isLoading get() = _isLoading

    private val _data = MutableLiveData<Result<File>>()
    val data get() = _data

    fun start(){
        viewModelScope.launch {
            _isLoading.value = true

            _data.value = imageCompressionUseCase("example_name")

            _isLoading.value = false
        }
    }
}