Implement showing authentication progress

app/src/main/java/gq/kirmanak/mealient/ui/auth/AuthenticationFragment.kt

@@ -12,6 +12,7 @@ import gq.kirmanak.mealient.R
 import gq.kirmanak.mealient.data.network.NetworkError
 import gq.kirmanak.mealient.databinding.FragmentAuthenticationBinding
 import gq.kirmanak.mealient.extensions.checkIfInputIsEmpty
+import gq.kirmanak.mealient.ui.OperationUiState
 import gq.kirmanak.mealient.ui.activity.MainActivityViewModel
 import timber.log.Timber
 
@@ -26,7 +27,7 @@ class AuthenticationFragment : Fragment(R.layout.fragment_authentication) {
         Timber.v("onViewCreated() called with: view = $view, savedInstanceState = $savedInstanceState")
         binding.button.setOnClickListener { onLoginClicked() }
         activityViewModel.updateUiState { it.copy(loginButtonVisible = false, titleVisible = true) }
-        viewModel.authenticationResult.observe(viewLifecycleOwner, ::onAuthenticationResult)
+        viewModel.uiState.observe(viewLifecycleOwner, ::onUiStateChange)
     }
 
     private fun onLoginClicked(): Unit = with(binding) {
@@ -45,22 +46,22 @@ class AuthenticationFragment : Fragment(R.layout.fragment_authentication) {
             trim = false,
         ) ?: return
 
-        button.isClickable = false
         viewModel.authenticate(email, pass)
     }
 
-    private fun onAuthenticationResult(result: Result<Unit>) {
-        Timber.v("onAuthenticationResult() called with: result = $result")
-        if (result.isSuccess) {
+    private fun onUiStateChange(uiState: OperationUiState<Unit>) = with(binding) {
+        Timber.v("onUiStateChange() called with: authUiState = $uiState")
+        if (uiState.isSuccess) {
             findNavController().popBackStack()
             return
         }
 
-        binding.passwordInputLayout.error = when (result.exceptionOrNull()) {
+        passwordInputLayout.error = when (uiState.exceptionOrNull) {
             is NetworkError.Unauthorized -> getString(R.string.fragment_authentication_credentials_incorrect)
             else -> null
         }
 
-        binding.button.isClickable = true
+        uiState.updateButtonState(button)
+        uiState.updateProgressState(progress)
     }
 }

app/src/main/java/gq/kirmanak/mealient/ui/auth/AuthenticationViewModel.kt

@@ -7,6 +7,7 @@ import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import gq.kirmanak.mealient.data.auth.AuthRepo
 import gq.kirmanak.mealient.extensions.runCatchingExceptCancel
+import gq.kirmanak.mealient.ui.OperationUiState
 import kotlinx.coroutines.launch
 import timber.log.Timber
 import javax.inject.Inject
@@ -16,16 +17,15 @@ class AuthenticationViewModel @Inject constructor(
     private val authRepo: AuthRepo,
 ) : ViewModel() {
 
-    private val _authenticationResult = MutableLiveData<Result<Unit>>()
-    val authenticationResult: LiveData<Result<Unit>>
-        get() = _authenticationResult
+    private val _uiState = MutableLiveData<OperationUiState<Unit>>(OperationUiState.Initial())
+    val uiState: LiveData<OperationUiState<Unit>> get() = _uiState
 
     fun authenticate(email: String, password: String) {
         Timber.v("authenticate() called with: email = $email, password = $password")
+        _uiState.value = OperationUiState.Progress()
         viewModelScope.launch {
-            _authenticationResult.value = runCatchingExceptCancel {
-                authRepo.authenticate(email, password)
-            }
+            val result = runCatchingExceptCancel { authRepo.authenticate(email, password) }
+            _uiState.value = OperationUiState.fromResult(result)
         }
     }
 }