Implement logout feature

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

@@ -24,4 +24,9 @@ class AuthenticationViewModel @Inject constructor(
         Timber.v("authenticationStatuses() called")
         return authRepo.authenticationStatuses()
     }
+
+    fun logout() {
+        Timber.v("logout() called")
+        authRepo.logout()
+    }
 }

app/src/main/java/gq/kirmanak/mealie/ui/recipes/RecipesFragment.kt

@@ -7,9 +7,11 @@ import android.view.ViewGroup
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.lifecycleScope
+import androidx.navigation.fragment.findNavController
 import androidx.recyclerview.widget.LinearLayoutManager
 import dagger.hilt.android.AndroidEntryPoint
 import gq.kirmanak.mealie.databinding.FragmentRecipesBinding
+import gq.kirmanak.mealie.ui.auth.AuthenticationViewModel
 import kotlinx.coroutines.flow.collectLatest
 import timber.log.Timber
 
@@ -19,6 +21,7 @@ class RecipesFragment : Fragment() {
     private val binding: FragmentRecipesBinding
         get() = checkNotNull(_binding) { "Binding requested when fragment is off screen" }
     private val viewModel by viewModels<RecipeViewModel>()
+    private val authViewModel by viewModels<AuthenticationViewModel>()
 
     override fun onCreateView(
         inflater: LayoutInflater,
@@ -33,13 +36,33 @@ class RecipesFragment : Fragment() {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         Timber.v("onViewCreated() called with: view = $view, savedInstanceState = $savedInstanceState")
+        setupRecipeAdapter()
+        listenToAuthStatuses()
+    }
+
+    private fun listenToAuthStatuses() {
+        Timber.v("listenToAuthStatuses() called")
+        lifecycleScope.launchWhenCreated {
+            authViewModel.authenticationStatuses().collectLatest {
+                Timber.v("listenToAuthStatuses: new auth status = $it")
+                if (!it) navigateToAuthFragment()
+            }
+        }
+    }
+
+    private fun navigateToAuthFragment() {
+        Timber.v("navigateToAuthFragment() called")
+        findNavController().navigate(RecipesFragmentDirections.actionRecipesFragmentToAuthenticationFragment())
+    }
+
+    private fun setupRecipeAdapter() {
+        Timber.v("setupRecipeAdapter() called")
         binding.recipes.layoutManager = LinearLayoutManager(requireContext())
         val recipesPagingAdapter = RecipesPagingAdapter(viewModel)
         binding.recipes.adapter = recipesPagingAdapter
         lifecycleScope.launchWhenResumed {
-            Timber.d("onViewCreated: coroutine started")
             viewModel.recipeFlow.collectLatest {
-                Timber.d("onViewCreated: received update")
+                Timber.d("setupRecipeAdapter: received update")
                 recipesPagingAdapter.submitData(it)
             }
         }