android: wire DatabasePosts into the navigation flow

android/src/main/kotlin/dev/msfjarvis/claw/android/ui/Destinations.kt

@@ -5,6 +5,10 @@ sealed class Destinations(internal val route: String) {
     fun getRoute() = route
   }
 
+  object Saved : Destinations("saved") {
+    fun getRoute() = route
+  }
+
   object Comments : Destinations("comments/%s") {
     fun getRoute(postId: String) = route.format(postId)
   }

android/src/main/kotlin/dev/msfjarvis/claw/android/ui/LobstersApp.kt

@@ -6,6 +6,7 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.SideEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -47,7 +48,8 @@ fun LobstersApp(
   setWebUri: (String) -> Unit,
 ) {
   val systemUiController = rememberSystemUiController()
-  val listState = rememberLazyListState()
+  val networkListState = rememberLazyListState()
+  val savedListState = rememberLazyListState()
   val navController = rememberNavController()
   // The destination needs to be tracked here rather than used directly since
   // `NavController#currentDestination` is not a Composable state.
@@ -103,14 +105,15 @@ fun LobstersApp(
         systemUiController.setStatusBarColor(color = statusBarColor)
         systemUiController.setNavigationBarColor(color = Color.Transparent)
       }
-      val items = viewModel.pagerFlow.collectAsLazyPagingItems()
+      val networkPosts = viewModel.pagerFlow.collectAsLazyPagingItems()
+      val savedPosts by viewModel.savedPosts.collectAsState(emptyList())
 
       Scaffold(
         topBar = { ClawAppBar(modifier = Modifier.statusBarsPadding()) },
         floatingActionButton = {
           ClawFab(
             isFabVisible = isFabVisible && currentDestination == Destinations.Hottest.getRoute(),
-            listState = listState,
+            listState = networkListState,
             modifier = Modifier.navigationBarsPadding(),
           )
         },
@@ -119,12 +122,21 @@ fun LobstersApp(
           composable(Destinations.Hottest.getRoute()) {
             setWebUri("https://lobste.rs/")
             HottestPosts(
-              items,
+              items = networkPosts,
-              listState,
+              listState = networkListState,
-              viewModel::isPostSaved,
+              isPostSaved = viewModel::isPostSaved,
-              viewModel::reloadPosts,
+              reloadPosts = viewModel::reloadPosts,
-              postActions,
+              postActions = postActions,
-              Modifier.nestedScroll(nestedScrollConnection),
+              modifier = Modifier.nestedScroll(nestedScrollConnection),
+            )
+          }
+          composable(Destinations.Saved.getRoute()) {
+            DatabasePosts(
+              items = savedPosts,
+              listState = savedListState,
+              isSaved = viewModel::isPostSaved,
+              postActions = postActions,
+              modifier = Modifier.nestedScroll(nestedScrollConnection),
             )
           }
           composable(Destinations.Comments.getRoute("{postId}")) { backStackEntry ->

android/src/main/kotlin/dev/msfjarvis/claw/android/viewmodel/ClawViewModel.kt

@@ -11,7 +11,6 @@ import dev.msfjarvis.claw.database.local.SavedPost
 import javax.inject.Inject
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ExperimentalCoroutinesApi
-import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.mapLatest
@@ -27,7 +26,6 @@ constructor(
   private val repository: SavedPostsRepository,
 ) : ViewModel() {
   private var lastPagingSource: LobstersPagingSource? = null
-  private val savedPosts = flow { repository.savedPosts.collect { emit(it) } }
   private val pager =
     Pager(PagingConfig(20)) {
       LobstersPagingSource(api::getHottestPosts).also { lastPagingSource = it }
@@ -36,6 +34,9 @@ constructor(
   val pagerFlow
     get() = pager.flow
 
+  val savedPosts
+    get() = repository.savedPosts
+
   suspend fun isPostSaved(post: SavedPost) = savedPosts.mapLatest { posts -> post in posts }.first()
 
   fun toggleSave(post: SavedPost) {