Merge pull request #2654 from vitorpamplona/claude/add-tag-filters-YR1wO

feat(home): user-configurable home tabs (new threads, conversations, everything)

amethyst/src/main/java/com/vitorpamplona/amethyst/model/UiSettings.kt

@@ -44,6 +44,9 @@ data class UiSettings(
     val automaticallyProposeAiImprovements: BooleanType = BooleanType.ALWAYS,
     val useTrackedBroadcasts: BooleanType = BooleanType.ALWAYS,
     val bottomBarItems: List<NavBarItem> = DefaultBottomBarItems,
+    val showHomeNewThreadsTab: Boolean = true,
+    val showHomeConversationsTab: Boolean = true,
+    val showHomeEverythingTab: Boolean = false,
 )
 
 enum class ThemeType(

amethyst/src/main/java/com/vitorpamplona/amethyst/model/UiSettingsFlow.kt

@@ -44,6 +44,9 @@ class UiSettingsFlow(
     val automaticallyProposeAiImprovements: MutableStateFlow<BooleanType> = MutableStateFlow(BooleanType.ALWAYS),
     val useTrackedBroadcasts: MutableStateFlow<BooleanType> = MutableStateFlow(BooleanType.ALWAYS),
     val bottomBarItems: MutableStateFlow<List<NavBarItem>> = MutableStateFlow(DefaultBottomBarItems),
+    val showHomeNewThreadsTab: MutableStateFlow<Boolean> = MutableStateFlow(true),
+    val showHomeConversationsTab: MutableStateFlow<Boolean> = MutableStateFlow(true),
+    val showHomeEverythingTab: MutableStateFlow<Boolean> = MutableStateFlow(false),
 ) {
     val listOfFlows: List<Flow<Any?>> =
         listOf<Flow<Any?>>(
@@ -62,6 +65,9 @@ class UiSettingsFlow(
             automaticallyProposeAiImprovements,
             useTrackedBroadcasts,
             bottomBarItems,
+            showHomeNewThreadsTab,
+            showHomeConversationsTab,
+            showHomeEverythingTab,
         )
 
     // emits at every change in any of the propertyes.
@@ -84,6 +90,9 @@ class UiSettingsFlow(
                 flows[12] as BooleanType,
                 flows[13] as BooleanType,
                 flows[14] as List<NavBarItem>,
+                flows[15] as Boolean,
+                flows[16] as Boolean,
+                flows[17] as Boolean,
             )
         }
 
@@ -104,6 +113,9 @@ class UiSettingsFlow(
             automaticallyProposeAiImprovements.value,
             useTrackedBroadcasts.value,
             bottomBarItems.value,
+            showHomeNewThreadsTab.value,
+            showHomeConversationsTab.value,
+            showHomeEverythingTab.value,
         )
 
     fun update(torSettings: UiSettings): Boolean {
@@ -169,6 +181,18 @@ class UiSettingsFlow(
             bottomBarItems.tryEmit(torSettings.bottomBarItems)
             any = true
         }
+        if (showHomeNewThreadsTab.value != torSettings.showHomeNewThreadsTab) {
+            showHomeNewThreadsTab.tryEmit(torSettings.showHomeNewThreadsTab)
+            any = true
+        }
+        if (showHomeConversationsTab.value != torSettings.showHomeConversationsTab) {
+            showHomeConversationsTab.tryEmit(torSettings.showHomeConversationsTab)
+            any = true
+        }
+        if (showHomeEverythingTab.value != torSettings.showHomeEverythingTab) {
+            showHomeEverythingTab.tryEmit(torSettings.showHomeEverythingTab)
+            any = true
+        }
 
         return any
     }
@@ -203,6 +227,9 @@ class UiSettingsFlow(
                 MutableStateFlow(uiSettings.automaticallyProposeAiImprovements),
                 MutableStateFlow(uiSettings.useTrackedBroadcasts),
                 MutableStateFlow(uiSettings.bottomBarItems),
+                MutableStateFlow(uiSettings.showHomeNewThreadsTab),
+                MutableStateFlow(uiSettings.showHomeConversationsTab),
+                MutableStateFlow(uiSettings.showHomeEverythingTab),
             )
     }
 }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/feeds/RememberForeverStates.kt

@@ -41,6 +41,7 @@ object ScrollStateKeys {
     const val VIDEO_SCREEN = "VideoFeed"
     const val HOME_FOLLOWS = "HomeFollowsFeed"
     const val HOME_REPLIES = "HomeFollowsRepliesFeed"
+    const val HOME_EVERYTHING = "HomeFollowsEverythingFeed"
     const val MESSAGES_KNOWN = "MessagesKnown"
     const val MESSAGES_NEW = "MessagesNew"
     const val PROFILE_GALLERY = "ProfileGalleryFeed"

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/navigation/AppNavigation.kt

@@ -154,6 +154,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.search.SearchScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.AllSettingsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.BottomBarSettingsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.CallSettingsScreen
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.HomeTabsSettingsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.NIP47SetupScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.NamecoinSettingsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.OtsSettingsScreen
@@ -305,6 +306,7 @@ fun BuildNavigation(
         composableFromEnd<Route.UserSettings> { UserSettingsScreen(accountViewModel, nav) }
         composableFromEnd<Route.ReactionsSettings> { ReactionsSettingsScreen(accountViewModel, nav) }
         composableFromEnd<Route.BottomBarSettings> { BottomBarSettingsScreen(accountViewModel, nav) }
+        composableFromEnd<Route.HomeTabsSettings> { HomeTabsSettingsScreen(accountViewModel, nav) }
         composableFromEnd<Route.VideoPlayerSettings> { VideoPlayerSettingsScreen(accountViewModel, nav) }
         composableFromEnd<Route.CallSettings> { CallSettingsScreen(accountViewModel, nav) }
         composableFromEnd<Route.ImportFollowsSelectUser> { ImportFollowListSelectUserScreen(accountViewModel, nav) }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/navigation/routes/Routes.kt

@@ -213,6 +213,8 @@ sealed class Route {
 
     @Serializable object BottomBarSettings : Route()
 
+    @Serializable object HomeTabsSettings : Route()
+
     @Serializable object VideoPlayerSettings : Route()
 
     @Serializable object CallSettings : Route()

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountFeedContentStates.kt

@@ -43,6 +43,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.drafts.dal.DraftEventsFeedF
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.emojipacks.browse.dal.BrowseEmojiSetsFeedFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.followPacks.list.dal.FollowPacksFeedFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.home.dal.HomeConversationsFeedFilter
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.home.dal.HomeEverythingFeedFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.home.dal.HomeLiveFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.home.dal.HomeNewThreadFeedFilter
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.livestreams.dal.LiveStreamsFeedFilter
@@ -72,6 +73,7 @@ class AccountFeedContentStates(
     val homeLive = ChannelFeedContentState(HomeLiveFilter(account), scope)
     val homeNewThreads = FeedContentState(HomeNewThreadFeedFilter(account), scope, LocalCache)
     val homeReplies = FeedContentState(HomeConversationsFeedFilter(account), scope, LocalCache)
+    val homeEverything = FeedContentState(HomeEverythingFeedFilter(account), scope, LocalCache)
 
     val dmKnown = FeedContentState(ChatroomListKnownFeedFilter(account), scope, LocalCache)
     val dmNew = FeedContentState(ChatroomListNewFeedFilter(account), scope, LocalCache)
@@ -139,6 +141,7 @@ class AccountFeedContentStates(
         homeLive.updateFeedWith(newNotes)
         homeNewThreads.updateFeedWith(newNotes)
         homeReplies.updateFeedWith(newNotes)
+        homeEverything.updateFeedWith(newNotes)
 
         dmKnown.updateFeedWith(newNotes)
         dmNew.updateFeedWith(newNotes)
@@ -186,6 +189,7 @@ class AccountFeedContentStates(
         homeLive.deleteFromFeed(newNotes)
         homeNewThreads.deleteFromFeed(newNotes)
         homeReplies.deleteFromFeed(newNotes)
+        homeEverything.deleteFromFeed(newNotes)
 
         dmKnown.updateFeedWith(newNotes)
         dmNew.updateFeedWith(newNotes)

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/HomeScreen.kt

@@ -108,6 +108,7 @@ fun HomeScreen(
         liveFeedState = accountViewModel.feedStates.homeLive,
         newThreadsFeedState = accountViewModel.feedStates.homeNewThreads,
         repliesFeedState = accountViewModel.feedStates.homeReplies,
+        everythingFeedState = accountViewModel.feedStates.homeEverything,
         accountViewModel = accountViewModel,
         nav = nav,
     )
@@ -119,18 +120,20 @@ fun HomeScreen(
     liveFeedState: ChannelFeedContentState,
     newThreadsFeedState: FeedContentState,
     repliesFeedState: FeedContentState,
+    everythingFeedState: FeedContentState,
     accountViewModel: AccountViewModel,
     nav: INav,
 ) {
-    WatchAccountForHomeScreen(liveFeedState, newThreadsFeedState, repliesFeedState, accountViewModel)
+    WatchAccountForHomeScreen(liveFeedState, newThreadsFeedState, repliesFeedState, everythingFeedState, accountViewModel)
 
     WatchLifecycleAndUpdateModel(liveFeedState)
     WatchLifecycleAndUpdateModel(newThreadsFeedState)
     WatchLifecycleAndUpdateModel(repliesFeedState)
+    WatchLifecycleAndUpdateModel(everythingFeedState)
 
     HomeFilterAssemblerSubscription(accountViewModel)
 
-    AssembleHomeTabs(newThreadsFeedState, repliesFeedState, liveFeedState) { pagerState, tabItems ->
+    AssembleHomeTabs(newThreadsFeedState, repliesFeedState, everythingFeedState, liveFeedState, accountViewModel) { pagerState, tabItems ->
         HomePages(pagerState, tabItems, accountViewModel, nav)
     }
 }
@@ -140,33 +143,74 @@ fun HomeScreen(
 private fun AssembleHomeTabs(
     newThreadsFeedState: FeedContentState,
     repliesFeedState: FeedContentState,
+    everythingFeedState: FeedContentState,
     liveFeedState: ChannelFeedContentState,
+    accountViewModel: AccountViewModel,
     inner: @Composable (PagerState, ImmutableList<TabItem>) -> Unit,
 ) {
-    val pagerState = rememberForeverPagerState(key = PagerStateKeys.HOME_SCREEN) { 2 }
+    val showNewThreads by accountViewModel.settings.uiSettingsFlow.showHomeNewThreadsTab
+        .collectAsStateWithLifecycle()
+    val showConversations by accountViewModel.settings.uiSettingsFlow.showHomeConversationsTab
+        .collectAsStateWithLifecycle()
+    val showEverything by accountViewModel.settings.uiSettingsFlow.showHomeEverythingTab
+        .collectAsStateWithLifecycle()
 
     val tabs by
-        remember(newThreadsFeedState, repliesFeedState) {
+        remember(newThreadsFeedState, repliesFeedState, everythingFeedState, showNewThreads, showConversations, showEverything) {
             mutableStateOf(
-                listOf(
-                    TabItem(
-                        resource = R.string.new_threads,
-                        feedState = newThreadsFeedState,
-                        routeForLastRead = "HomeFollows",
-                        scrollStateKey = ScrollStateKeys.HOME_FOLLOWS,
-                        liveSection = liveFeedState,
-                    ),
-                    TabItem(
-                        resource = R.string.conversations,
-                        feedState = repliesFeedState,
-                        routeForLastRead = "HomeFollowsReplies",
-                        scrollStateKey = ScrollStateKeys.HOME_REPLIES,
-                        liveSection = liveFeedState,
-                    ),
-                ).toImmutableList(),
+                buildList {
+                    if (showNewThreads) {
+                        add(
+                            TabItem(
+                                resource = R.string.new_threads,
+                                feedState = newThreadsFeedState,
+                                routeForLastRead = "HomeFollows",
+                                scrollStateKey = ScrollStateKeys.HOME_FOLLOWS,
+                                liveSection = liveFeedState,
+                            ),
+                        )
+                    }
+                    if (showConversations) {
+                        add(
+                            TabItem(
+                                resource = R.string.conversations,
+                                feedState = repliesFeedState,
+                                routeForLastRead = "HomeFollowsReplies",
+                                scrollStateKey = ScrollStateKeys.HOME_REPLIES,
+                                liveSection = liveFeedState,
+                            ),
+                        )
+                    }
+                    if (showEverything) {
+                        add(
+                            TabItem(
+                                resource = R.string.home_tab_everything,
+                                feedState = everythingFeedState,
+                                routeForLastRead = "HomeFollowsEverything",
+                                scrollStateKey = ScrollStateKeys.HOME_EVERYTHING,
+                                liveSection = liveFeedState,
+                            ),
+                        )
+                    }
+                    // Always render at least one tab so the screen doesn't go blank
+                    // if the user disables every option.
+                    if (isEmpty()) {
+                        add(
+                            TabItem(
+                                resource = R.string.new_threads,
+                                feedState = newThreadsFeedState,
+                                routeForLastRead = "HomeFollows",
+                                scrollStateKey = ScrollStateKeys.HOME_FOLLOWS,
+                                liveSection = liveFeedState,
+                            ),
+                        )
+                    }
+                }.toImmutableList(),
             )
         }
 
+    val pagerState = rememberForeverPagerState(key = PagerStateKeys.HOME_SCREEN) { tabs.size }
+
     inner(pagerState, tabs)
 }
 
@@ -182,19 +226,21 @@ private fun HomePages(
         topBar = {
             Column {
                 HomeTopBar(accountViewModel, nav)
-                SecondaryTabRow(
-                    containerColor = MaterialTheme.colorScheme.background,
-                    contentColor = MaterialTheme.colorScheme.onBackground,
-                    modifier = TabRowHeight,
-                    selectedTabIndex = pagerState.currentPage,
-                ) {
-                    val coroutineScope = rememberCoroutineScope()
-                    tabs.forEachIndexed { index, tab ->
-                        Tab(
-                            selected = pagerState.currentPage == index,
-                            text = { Text(text = stringRes(tab.resource)) },
-                            onClick = { coroutineScope.launch { pagerState.animateScrollToPage(index) } },
-                        )
+                if (tabs.size > 1) {
+                    SecondaryTabRow(
+                        containerColor = MaterialTheme.colorScheme.background,
+                        contentColor = MaterialTheme.colorScheme.onBackground,
+                        modifier = TabRowHeight,
+                        selectedTabIndex = pagerState.currentPage,
+                    ) {
+                        val coroutineScope = rememberCoroutineScope()
+                        tabs.forEachIndexed { index, tab ->
+                            Tab(
+                                selected = pagerState.currentPage == index,
+                                text = { Text(text = stringRes(tab.resource)) },
+                                onClick = { coroutineScope.launch { pagerState.animateScrollToPage(index) } },
+                            )
+                        }
                     }
                 }
             }
@@ -506,6 +552,7 @@ fun WatchAccountForHomeScreen(
     liveFeedState: ChannelFeedContentState,
     newThreadsFeedState: FeedContentState,
     repliesFeedState: FeedContentState,
+    everythingFeedState: FeedContentState,
     accountViewModel: AccountViewModel,
 ) {
     val homeFollowList by accountViewModel.account.liveHomeFollowLists.collectAsStateWithLifecycle()
@@ -513,6 +560,7 @@ fun WatchAccountForHomeScreen(
     LaunchedEffect(accountViewModel, homeFollowList) {
         newThreadsFeedState.checkKeysInvalidateDataAndSendToTop()
         repliesFeedState.checkKeysInvalidateDataAndSendToTop()
+        everythingFeedState.checkKeysInvalidateDataAndSendToTop()
         liveFeedState.checkKeysInvalidateDataAndSendToTop()
     }
 }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/home/dal/HomeEverythingFeedFilter.kt

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.screen.loggedIn.home.dal
+
+import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.muted.MutedAuthorsByOutboxTopNavFilter
+import com.vitorpamplona.amethyst.model.topNavFeeds.noteBased.muted.MutedAuthorsByProxyTopNavFilter
+import com.vitorpamplona.amethyst.ui.dal.AdditiveFeedFilter
+import com.vitorpamplona.amethyst.ui.dal.DefaultFeedOrder
+import com.vitorpamplona.quartz.nip18Reposts.GenericRepostEvent
+import com.vitorpamplona.quartz.nip18Reposts.RepostEvent
+
+/**
+ * Combined home feed: every event accepted by either the New Threads filter
+ * or the Conversations (replies) filter, in one list.
+ */
+class HomeEverythingFeedFilter(
+    val account: Account,
+) : AdditiveFeedFilter<Note>() {
+    private val newThreads = HomeNewThreadFeedFilter(account)
+    private val conversations = HomeConversationsFeedFilter(account)
+
+    override fun feedKey(): String = account.userProfile().pubkeyHex + "-" + account.settings.defaultHomeFollowList.value
+
+    override fun showHiddenKey(): Boolean =
+        account.liveHomeFollowLists.value is MutedAuthorsByOutboxTopNavFilter ||
+            account.liveHomeFollowLists.value is MutedAuthorsByProxyTopNavFilter
+
+    override fun feed(): List<Note> = sort((newThreads.feed() + conversations.feed()).toSet())
+
+    override fun applyFilter(newItems: Set<Note>): Set<Note> = newThreads.applyFilter(newItems) + conversations.applyFilter(newItems)
+
+    override fun sort(items: Set<Note>): List<Note> =
+        items
+            .distinctBy {
+                if (it.event is RepostEvent || it.event is GenericRepostEvent) {
+                    it.replyTo?.lastOrNull()?.idHex ?: it.idHex
+                } else {
+                    it.idHex
+                }
+            }.sortedWith(DefaultFeedOrder)
+}

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/settings/AllSettingsScreen.kt

@@ -251,6 +251,13 @@ fun AllSettingsScreen(
                 tint = tint,
                 onClick = { nav.nav(Route.BottomBarSettings) },
             )
+            HorizontalDivider()
+            SettingsNavigationRow(
+                title = R.string.home_tabs_settings,
+                icon = MaterialSymbols.Home,
+                tint = tint,
+                onClick = { nav.nav(Route.HomeTabsSettings) },
+            )
             HorizontalDivider(thickness = 4.dp)
             SettingsSectionHeader(R.string.danger_zone)
             accountViewModel.account.settings.keyPair.privKey?.let {

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/settings/HomeTabsSettingsScreen.kt

@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.screen.loggedIn.settings
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.ui.navigation.navs.EmptyNav
+import com.vitorpamplona.amethyst.ui.navigation.navs.INav
+import com.vitorpamplona.amethyst.ui.navigation.topbars.TopBarWithBackButton
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.mockAccountViewModel
+import com.vitorpamplona.amethyst.ui.stringRes
+import com.vitorpamplona.amethyst.ui.theme.Size20dp
+import com.vitorpamplona.amethyst.ui.theme.ThemeComparisonRow
+
+@Preview
+@Composable
+fun HomeTabsSettingsScreenPreview() {
+    ThemeComparisonRow {
+        HomeTabsSettingsScreen(
+            mockAccountViewModel(),
+            EmptyNav(),
+        )
+    }
+}
+
+@Composable
+fun HomeTabsSettingsScreen(
+    accountViewModel: AccountViewModel,
+    nav: INav,
+) {
+    Scaffold(
+        topBar = {
+            TopBarWithBackButton(stringRes(id = R.string.home_tabs_settings), nav)
+        },
+    ) { padding ->
+        Column(Modifier.padding(padding)) {
+            HomeTabsSettingsContent(accountViewModel)
+        }
+    }
+}
+
+@Composable
+fun HomeTabsSettingsContent(accountViewModel: AccountViewModel) {
+    val ui = accountViewModel.settings.uiSettingsFlow
+
+    val showNewThreads by ui.showHomeNewThreadsTab.collectAsStateWithLifecycle()
+    val showConversations by ui.showHomeConversationsTab.collectAsStateWithLifecycle()
+    val showEverything by ui.showHomeEverythingTab.collectAsStateWithLifecycle()
+
+    val activeCount = listOf(showNewThreads, showConversations, showEverything).count { it }
+
+    Column(
+        modifier =
+            Modifier
+                .fillMaxWidth()
+                .verticalScroll(rememberScrollState()),
+    ) {
+        Spacer(Modifier.height(16.dp))
+
+        Text(
+            text = stringRes(R.string.home_tabs_settings_description),
+            style = MaterialTheme.typography.bodyMedium,
+            color = Color.Gray,
+            modifier = Modifier.padding(bottom = 16.dp, start = Size20dp, end = Size20dp),
+        )
+
+        HomeTabSwitchRow(
+            title = stringRes(R.string.new_threads),
+            checked = showNewThreads,
+            // Don't allow disabling the last remaining tab.
+            enabled = !(showNewThreads && activeCount == 1),
+            onCheckedChange = {
+                ui.showHomeNewThreadsTab.tryEmit(it)
+            },
+        )
+        HorizontalDivider(modifier = Modifier.padding(horizontal = Size20dp))
+
+        HomeTabSwitchRow(
+            title = stringRes(R.string.conversations),
+            checked = showConversations,
+            enabled = !(showConversations && activeCount == 1),
+            onCheckedChange = {
+                ui.showHomeConversationsTab.tryEmit(it)
+            },
+        )
+        HorizontalDivider(modifier = Modifier.padding(horizontal = Size20dp))
+
+        HomeTabSwitchRow(
+            title = stringRes(R.string.home_tab_everything),
+            checked = showEverything,
+            enabled = !(showEverything && activeCount == 1),
+            onCheckedChange = {
+                ui.showHomeEverythingTab.tryEmit(it)
+            },
+        )
+
+        Spacer(Modifier.height(16.dp))
+    }
+}
+
+@Composable
+private fun HomeTabSwitchRow(
+    title: String,
+    checked: Boolean,
+    enabled: Boolean,
+    onCheckedChange: (Boolean) -> Unit,
+) {
+    Row(
+        modifier =
+            Modifier
+                .fillMaxWidth()
+                .padding(vertical = 12.dp, horizontal = Size20dp),
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Text(
+            text = title,
+            style = MaterialTheme.typography.bodyLarge,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+            modifier = Modifier.weight(1f),
+        )
+        Switch(
+            checked = checked,
+            enabled = enabled,
+            onCheckedChange = onCheckedChange,
+        )
+    }
+}

amethyst/src/main/res/values/strings.xml

@@ -1726,6 +1726,9 @@
     <string name="bottom_bar_settings_description">Drag to reorder. Toggle to add or remove an item from the bottom bar. With zero items the bottom bar is hidden.</string>
     <string name="bottom_bar_settings_available">Available</string>
     <string name="bottom_bar_settings_reorder">Reorder</string>
+    <string name="home_tabs_settings">Home Tabs</string>
+    <string name="home_tabs_settings_description">Pick which tabs appear on the Home screen. When only one tab is active the tab bar is hidden.</string>
+    <string name="home_tab_everything">Everything</string>
     <string name="reactions_settings">Reaction Row</string>
     <string name="reactions_settings_description">Configure which reaction buttons are shown, their order, and whether to display counters.</string>
     <string name="reactions_settings_enabled">Enabled</string>