feat(jam-session): enhance guest functionality with track addition and participant moderation options

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/core/jam/JamRoomService.kt

@@ -92,10 +92,14 @@ class JamRoomService(
     private var localClientId: String = ""
     private var localDisplayName: String = ""
 
-    /** Display name of the local participant (stamped on items this device adds). */
+    /** Display name of the local participant. */
     val participantDisplayName: String
         get() = localDisplayName
 
+    /** Stable id of the local participant (stamped on items this device adds). */
+    val participantClientId: String
+        get() = localClientId
+
     private var hostBroadcastJob: Job? = null
 
     /** Guest side: last queue snapshot applied to the local player. */
@@ -257,7 +261,7 @@ class JamRoomService(
         jamClient.publishCommand(
             JamMessage.SuggestTrack(
                 mediaItem = JamMediaItem.fromTrack(track),
-                addedBy = localDisplayName,
+                addedBy = localClientId,
             )
         )
     }
@@ -267,7 +271,7 @@ class JamRoomService(
         jamClient.publishCommand(
             JamMessage.SuggestPlaylist(
                 tracks = tracks.map(JamMediaItem::fromTrack),
-                addedBy = localDisplayName,
+                addedBy = localClientId,
             )
         )
     }
@@ -396,11 +400,15 @@ class JamRoomService(
             }
 
             is JamMessage.SuggestTrack -> {
-                if (_role.value == JamRole.Host) acceptSuggestion(listOf(message.mediaItem))
+                if (_role.value == JamRole.Host) {
+                    acceptSuggestion(listOf(message.mediaItem.copy(addedBy = message.addedBy)))
+                }
             }
 
             is JamMessage.SuggestPlaylist -> {
-                if (_role.value == JamRole.Host) acceptSuggestion(message.tracks)
+                if (_role.value == JamRole.Host) {
+                    acceptSuggestion(message.tracks.map { it.copy(addedBy = message.addedBy) })
+                }
             }
 
             is JamMessage.Kick -> {

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/core/remote/RemotePlaybackController.kt

@@ -176,7 +176,7 @@ class RemotePlaybackController(
             try {
                 when (jamRoomService.role.value) {
                     JamRole.Host -> audioPlayerQueue.addToQueue(
-                        QueueEntry.StreamingTrack(track = track, url = "", addedBy = jamRoomService.participantDisplayName)
+                        QueueEntry.StreamingTrack(track = track, url = "", addedBy = jamRoomService.participantClientId)
                     )
 
                     JamRole.Guest -> jamRoomService.suggestTrack(track)
@@ -203,7 +203,7 @@ class RemotePlaybackController(
                             QueueEntry.StreamingTrack(
                                 track = track,
                                 url = "",
-                                addedBy = jamRoomService.participantDisplayName,
+                                addedBy = jamRoomService.participantClientId,
                             )
                         }
                     )

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/core/ui/base/Buttons.kt

@@ -27,6 +27,7 @@ import androidx.compose.foundation.interaction.collectIsHoveredAsState
 import androidx.compose.foundation.interaction.collectIsPressedAsState
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.RowScope
@@ -48,6 +49,7 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.alpha
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.draw.drawWithCache
 import androidx.compose.ui.draw.shadow
@@ -71,6 +73,8 @@ import dev.krtirtho.spotube.resources.iconsax.IconsaxShare
 import dev.krtirtho.spotube.resources.iconsax.User
 
 private val BadgeShape = RoundedCornerShape(11.dp)
+private const val DisabledContentAlpha = 0.38f
+
 private val ButtonMinHeight = 40.dp
 private val SquareButtonSize = 40.dp
 
@@ -178,6 +182,7 @@ fun OutlineButton(
         contentAlignment = Alignment.Center,
     ) {
         Row(
+            modifier = Modifier.alpha(if (enabled) 1f else DisabledContentAlpha),
             verticalAlignment = Alignment.CenterVertically,
             horizontalArrangement = Arrangement.spacedBy(8.dp),
             content = {
@@ -226,6 +231,7 @@ fun PrimaryButton(
     ) {
         CompositionLocalProvider(LocalContentColor provides state.colors.foreground) {
             Row(
+                modifier = Modifier.alpha(if (enabled) 1f else DisabledContentAlpha),
                 verticalAlignment = Alignment.CenterVertically,
                 horizontalArrangement = Arrangement.spacedBy(8.dp),
                 content = content,
@@ -271,6 +277,7 @@ fun SecondaryButton(
     ) {
         CompositionLocalProvider(LocalContentColor provides state.colors.foreground) {
             Row(
+                modifier = Modifier.alpha(if (enabled) 1f else DisabledContentAlpha),
                 verticalAlignment = Alignment.CenterVertically,
                 horizontalArrangement = Arrangement.spacedBy(8.dp),
                 content = content,
@@ -487,9 +494,16 @@ fun GroupIconButton(
                 onClick = onClick,
             ),
         contentAlignment = Alignment.Center,
+    ) {
+        Box(
+            modifier = Modifier
+                .fillMaxSize()
+                .alpha(if (enabled) 1f else DisabledContentAlpha),
+            contentAlignment = Alignment.Center,
         ) {
             content()
         }
+    }
 }
 
 @Composable

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/core/ui/component/CollectionDetails.kt

@@ -78,6 +78,9 @@ fun CollectionDetails(
     onShufflePlay: () -> Unit,
     onAddToQueue: () -> Unit,
     isPlaying: Boolean = false,
+    /** Guest in a jam session: play/shuffle are replaced by Add to Jam. */
+    isJamGuest: Boolean = false,
+    onAddToJam: (() -> Unit)? = null,
     isFollowing: Boolean = false,
     onFollowClick: () -> Unit = { },
     showFollowButton: Boolean = true,
@@ -91,7 +94,28 @@ fun CollectionDetails(
         val animatedVisibilityScope = LocalAnimatedVisibilityScope.current
 
         val playPauseButton = @Composable {
-
+            if (isJamGuest) {
+                if (onAddToJam != null) {
+                    Row(
+                        modifier = Modifier.fillMaxWidth(),
+                        horizontalArrangement = Arrangement.spacedBy(6.dp),
+                    ) {
+                        PrimaryButton(
+                            modifier = if (isCompact) Modifier.weight(1f) else Modifier,
+                            onClick = onAddToJam!!,
+                        ) {
+                            Icon(
+                                imageVector = Iconsax.IconsaxAddSquare,
+                                contentDescription = "Add to Jam",
+                            )
+                            TextWithShimmer(
+                                text = "Add to Jam",
+                                modifier = Modifier.padding(start = 6.dp),
+                            )
+                        }
+                    }
+                }
+            } else {
                 Row(
                     modifier = Modifier.fillMaxWidth(),
                     horizontalArrangement = Arrangement.spacedBy(6.dp),
@@ -127,6 +151,7 @@ fun CollectionDetails(
                     }
                 }
             }
+        }
 
         val actions = @Composable {
             ButtonGroup {

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/core/ui/component/CollectionView.kt

@@ -89,6 +89,8 @@ fun CollectionView(
     onBulkAddToPlaylist: (List<MetadataTrack>) -> Unit = {},
     onBulkAddToJam: (List<MetadataTrack>) -> Unit = {},
     isInJam: Boolean = false,
+    isJamGuest: Boolean = false,
+    onAddToJam: (List<MetadataTrack>) -> Unit = {},
     trackOptionsState: (MetadataTrack) -> TrackOptionsState = { TrackOptionsState() },
     footerContent: (@Composable () -> Unit)? = null,
     trailingContent: @Composable () -> Unit = {},
@@ -116,7 +118,7 @@ fun CollectionView(
                 } else {
                     {}
                 },
-                actions = if (isCollapsed) {
+                actions = if (isCollapsed && !isJamGuest) {
                     {
                         IconButton(onClick = onPlay) {
                             Icon(
@@ -161,6 +163,8 @@ fun CollectionView(
                                 showFollowButton = showFollowButton,
                                 onEdit = onEdit,
                                 sharedElementKey = sharedElementKey,
+                                isJamGuest = isJamGuest,
+                                onAddToJam = { onAddToJam(tracks) },
                             )
                         }
                     } else {
@@ -181,6 +185,8 @@ fun CollectionView(
                             showFollowButton = showFollowButton,
                             onEdit = onEdit,
                             sharedElementKey = sharedElementKey,
+                            isJamGuest = isJamGuest,
+                            onAddToJam = { onAddToJam(tracks) },
                         )
                     }
                 },
@@ -204,6 +210,7 @@ fun CollectionView(
                 onBulkAddToPlaylist = onBulkAddToPlaylist,
                 onBulkAddToJam = onBulkAddToJam,
                 isInJam = isInJam,
+                isJamGuest = isJamGuest,
                 trackOptionsState = trackOptionsState,
             )
         }

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/core/ui/component/TrackList.kt

@@ -145,6 +145,7 @@ fun TrackList(
     onBulkAddToPlaylist: (List<MetadataTrack>) -> Unit = {},
     onBulkAddToJam: (List<MetadataTrack>) -> Unit = {},
     isInJam: Boolean = false,
+    isJamGuest: Boolean = false,
     currentTrackId: String? = null,
     isCurrentTrackPlaying: Boolean = false,
     trackOptionsState: (MetadataTrack) -> TrackOptionsState = { TrackOptionsState() },
@@ -249,6 +250,8 @@ fun TrackList(
                                     } else {
                                         selectedTrackIds + track.id
                                     }
+                            } else if (isJamGuest) {
+                                onTrackOptionsAction(track, TrackOptionsAction.AddToJam)
                             } else {
                                 onTrackClick(track)
                             }
@@ -277,6 +280,7 @@ fun TrackList(
                         },
                         trackOptionsState = trackOptionsState(track),
                         isInJam = isInJam,
+                        isJamGuest = isJamGuest,
                         onShowOptionsClick = { selectedTrackForOptions = track },
                         onArtistClick = onArtistClick,
                         onAlbumClick = onAlbumClick,
@@ -424,28 +428,38 @@ fun TrackList(
                     val isAll =
                         selectedTrackIds.isEmpty() || trackCount == visibleTracks.size
                     AdaptiveDropdownBottomSheet(
-                        items = listOf(
+                        items = buildList {
+                            add(
                                 AdaptiveMenuItem(
                                     icon = Iconsax.IconsaxDirectboxReceive,
                                     label = if (isAll) "Download All" else "Download $trackCount",
                                     onClick = { onBulkDownload(targetTracks) },
                                 ),
+                            )
+                            if (!isJamGuest) {
+                                add(
                                     AdaptiveMenuItem(
                                         icon = Iconsax.IconsaxAddSquare,
                                         label = if (isAll) "Add All to Queue" else "Add $trackCount to Queue",
                                         onClick = { onBulkAddToQueue(targetTracks) },
                                     ),
+                                )
+                                add(
                                     AdaptiveMenuItem(
                                         icon = Iconsax.IconsaxNext,
                                         label = if (isAll) "Play All Next" else "Play $trackCount Next",
                                         onClick = { onBulkPlayNext(targetTracks) },
                                     ),
+                                )
+                            }
+                            add(
                                 AdaptiveMenuItem(
                                     icon = Iconsax.IconsaxMusicPlaylist,
                                     label = if (isAll) "Add All to Playlist" else "Add $trackCount to Playlist",
                                     onClick = { onBulkAddToPlaylist(targetTracks) },
                                 ),
-                        ) + if (isInJam) {
+                            )
+                        } + if (isInJam) {
                             listOf(
                                 AdaptiveMenuItem(
                                     icon = Iconsax.IconsaxAddSquare,
@@ -511,6 +525,7 @@ fun TrackList(
                         },
                         onAlbumClick = { track.album?.let { onAlbumClick(it) } },
                         isInJam = isInJam,
+                        isJamGuest = isJamGuest,
                     )
                 }
             }
@@ -570,6 +585,7 @@ private fun TrackListRow(
     onTrackOptionsAction: (TrackOptionsAction) -> Unit,
     trackOptionsState: TrackOptionsState,
     isInJam: Boolean,
+    isJamGuest: Boolean,
     onShowOptionsClick: () -> Unit,
     onArtistClick: (MetadataArtist.Basic) -> Unit,
     onAlbumClick: (MetadataAlbum.Detailed) -> Unit,
@@ -766,6 +782,7 @@ private fun TrackListRow(
                 onAction = onTrackOptionsAction,
                 onAlbumClick = { track.album?.let { onAlbumClick(it) } },
                 isInJam = isInJam,
+                isJamGuest = isJamGuest,
             )
         } else {
             GhostIconButton(onClick = onShowOptionsClick) {
@@ -860,6 +877,7 @@ private fun ShimmerTrackListRow(
             onTrackOptionsAction = {},
             trackOptionsState = TrackOptionsState(),
             isInJam = false,
+            isJamGuest = false,
             onShowOptionsClick = {},
             onArtistClick = {},
             onAlbumClick = {},

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/core/ui/component/TrackOptions.kt

@@ -100,6 +100,7 @@ fun TrackOptions(
     onAlbumClick: () -> Unit,
     modifier: Modifier = Modifier,
     isInJam: Boolean = false,
+    isJamGuest: Boolean = false,
 ) {
     AdaptiveDropdownBottomSheet(
         items = buildTrackMenuItems(
@@ -108,6 +109,7 @@ fun TrackOptions(
             onAction = onAction,
             onAlbumClick = onAlbumClick,
             isInJam = isInJam,
+            isJamGuest = isJamGuest,
         ),
         trigger = { onClick ->
             GhostIconButton(onClick = onClick) {
@@ -133,6 +135,7 @@ fun TrackOptionsBottomSheet(
     onAction: (TrackOptionsAction) -> Unit,
     onAlbumClick: () -> Unit,
     isInJam: Boolean = false,
+    isJamGuest: Boolean = false,
 ) {
     ModalBottomSheet(onDismissRequest = onDismiss) {
         Column(modifier = Modifier.fillMaxWidth()) {
@@ -156,6 +159,7 @@ fun TrackOptionsBottomSheet(
                         onDismiss()
                     },
                     isInJam = isInJam,
+                    isJamGuest = isJamGuest,
                 ).forEach { item ->
                     Row(
                         modifier = Modifier
@@ -247,6 +251,7 @@ private fun buildTrackMenuItems(
     onAction: (TrackOptionsAction) -> Unit,
     onAlbumClick: () -> Unit,
     isInJam: Boolean = false,
+    isJamGuest: Boolean = false,
 ): List<AdaptiveMenuItem> = buildList {
     if (isInJam) {
         add(
@@ -266,6 +271,9 @@ private fun buildTrackMenuItems(
         ),
     )
 
+    // A guest's queue is the shared jam queue — mutating it locally is not
+    // allowed, so queue actions are replaced by "Add to Jam".
+    if (!isJamGuest) {
         if (!state.isInQueue && !state.isCurrentlyPlaying) {
             add(
                 AdaptiveMenuItem(
@@ -301,6 +309,7 @@ private fun buildTrackMenuItems(
                 ),
             )
         }
+    }
 
     add(
         AdaptiveMenuItem(

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/album/AlbumScreen.kt

@@ -25,6 +25,7 @@ import dev.krtirtho.spotube.core.audioplayer.AudioPlayerInterface
 import dev.krtirtho.spotube.core.audioplayer.AudioPlayerQueue
 import dev.krtirtho.spotube.core.audioplayer.PlayerState
 import dev.krtirtho.spotube.core.navigation.NavigationCommands
+import dev.krtirtho.spotube.core.jam.JamRole
 import dev.krtirtho.spotube.core.jam.JamRoomService
 import org.koin.compose.koinInject
 import dev.krtirtho.spotube.core.navigation.Routes
@@ -43,6 +44,8 @@ fun AlbumScreen(
     val jamRoomService: JamRoomService = koinInject()
     val jamActive by jamRoomService.role.map { it != null }
         .collectAsStateWithLifecycle(initialValue = false)
+    val isJamGuest by jamRoomService.role.map { it == JamRole.Guest }
+        .collectAsStateWithLifecycle(initialValue = false)
     val currentCollectionEntry by audioPlayerQueue.currentCollectionEntryFlow.collectAsStateWithLifecycle()
     val playerState by audioPlayer.playerStateFlow.collectAsStateWithLifecycle()
     val savedAlbumIds by viewModel.savedAlbumIds.collectAsStateWithLifecycle()
@@ -100,6 +103,8 @@ fun AlbumScreen(
         onBulkAddToPlaylist = viewModel::showAddToPlaylistPicker,
         onBulkAddToJam = viewModel::addTracksToJam,
         isInJam = jamActive,
+        isJamGuest = isJamGuest,
+        onAddToJam = viewModel::addTracksToJam,
         trailingContent = {
             AddToPlaylistPicker(
                 visible = showAddToPlaylistPicker,

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/artist/ArtistScreen.kt

@@ -63,6 +63,7 @@ import dev.krtirtho.spotube.core.audioplayer.AudioPlayerInterface
 import dev.krtirtho.spotube.core.audioplayer.AudioPlayerQueue
 import dev.krtirtho.spotube.core.audioplayer.PlayerState
 import dev.krtirtho.spotube.core.audioplayer.QueueEntry
+import dev.krtirtho.spotube.core.jam.JamRole
 import dev.krtirtho.spotube.core.jam.JamRoomService
 import dev.krtirtho.spotube.core.navigation.NavigationCommands
 import dev.krtirtho.spotube.core.navigation.Routes
@@ -100,6 +101,8 @@ fun ArtistScreen(
     val jamRoomService: JamRoomService = koinInject()
     val jamActive by jamRoomService.role.map { it != null }
         .collectAsStateWithLifecycle(initialValue = false)
+    val isJamGuest by jamRoomService.role.map { it == JamRole.Guest }
+        .collectAsStateWithLifecycle(initialValue = false)
     val currentQueueEntry by audioPlayerQueue.currentQueueEntryFlow.collectAsStateWithLifecycle()
     val playerState by audioPlayer.playerStateFlow.collectAsStateWithLifecycle()
     val savedArtistIds by viewModel.savedArtistIds.collectAsStateWithLifecycle()
@@ -186,6 +189,7 @@ fun ArtistScreen(
                             onBulkAddToPlaylist = viewModel::showAddToPlaylistPicker,
                             onBulkAddToJam = viewModel::addTracksToJam,
                             isInJam = jamActive,
+                            isJamGuest = isJamGuest,
                         )
                     }
 

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/playlist/PlaylistScreen.kt

@@ -36,6 +36,7 @@ import dev.krtirtho.spotube.core.audioplayer.AudioPlayerInterface
 import dev.krtirtho.spotube.core.audioplayer.AudioPlayerQueue
 import dev.krtirtho.spotube.core.audioplayer.PlayerState
 import dev.krtirtho.spotube.core.navigation.NavigationCommands
+import dev.krtirtho.spotube.core.jam.JamRole
 import dev.krtirtho.spotube.core.jam.JamRoomService
 import org.koin.compose.koinInject
 import dev.krtirtho.spotube.core.navigation.Routes
@@ -59,6 +60,8 @@ fun PlaylistScreen(
     val jamRoomService: JamRoomService = koinInject()
     val jamActive by jamRoomService.role.map { it != null }
         .collectAsStateWithLifecycle(initialValue = false)
+    val isJamGuest by jamRoomService.role.map { it == JamRole.Guest }
+        .collectAsStateWithLifecycle(initialValue = false)
     val currentCollectionEntry by audioPlayerQueue.currentCollectionEntryFlow.collectAsStateWithLifecycle()
     val playerState by audioPlayer.playerStateFlow.collectAsStateWithLifecycle()
     val savedPlaylistIds by viewModel.savedPlaylistIds.collectAsStateWithLifecycle()
@@ -135,6 +138,8 @@ fun PlaylistScreen(
         onBulkAddToPlaylist = viewModel::showAddToPlaylistPicker,
         onBulkAddToJam = viewModel::addTracksToJam,
         isInJam = jamActive,
+        isJamGuest = isJamGuest,
+        onAddToJam = viewModel::addTracksToJam,
         footerContent = footerContent,
         trailingContent = {
             val loadedPlaylist = (dataState as? PlaylistScreenState.Data.Loaded)?.playlist

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/saved_tracks/SavedTracksScreen.kt

@@ -26,6 +26,7 @@ import dev.krtirtho.spotube.core.audioplayer.AudioPlayerQueue
 import dev.krtirtho.spotube.core.audioplayer.PlayerState
 import dev.krtirtho.spotube.core.audioplayer.QueueCollectionEntry
 import dev.krtirtho.spotube.core.navigation.NavigationCommands
+import dev.krtirtho.spotube.core.jam.JamRole
 import dev.krtirtho.spotube.core.jam.JamRoomService
 import org.koin.compose.koinInject
 import dev.krtirtho.spotube.core.navigation.Routes
@@ -45,6 +46,8 @@ fun SavedTracksScreen(
     val jamRoomService: JamRoomService = koinInject()
     val jamActive by jamRoomService.role.map { it != null }
         .collectAsStateWithLifecycle(initialValue = false)
+    val isJamGuest by jamRoomService.role.map { it == JamRole.Guest }
+        .collectAsStateWithLifecycle(initialValue = false)
     val currentCollectionEntry by audioPlayerQueue.currentCollectionEntryFlow.collectAsStateWithLifecycle()
     val playerState by audioPlayer.playerStateFlow.collectAsStateWithLifecycle()
     val currentUserId by viewModel.currentUserId.collectAsStateWithLifecycle()
@@ -93,6 +96,8 @@ fun SavedTracksScreen(
         onBulkAddToPlaylist = viewModel::showAddToPlaylistPicker,
         onBulkAddToJam = viewModel::addTracksToJam,
         isInJam = jamActive,
+        isJamGuest = isJamGuest,
+        onAddToJam = viewModel::addTracksToJam,
         trailingContent = {
             AddToPlaylistPicker(
                 visible = showAddToPlaylistPicker,

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/search/SearchScreen.kt

@@ -86,6 +86,7 @@ import dev.krtirtho.spotube.core.audioplayer.AudioPlayerQueue
 import dev.krtirtho.spotube.core.audioplayer.QueueEntry
 import dev.krtirtho.spotube.core.navigation.NavigationCommands
 import dev.krtirtho.spotube.core.navigation.Routes
+import dev.krtirtho.spotube.core.jam.JamRole
 import dev.krtirtho.spotube.core.jam.JamRoomService
 import org.koin.compose.koinInject
 import dev.krtirtho.spotube.core.remote.RemotePlaybackController
@@ -133,6 +134,8 @@ fun SearchScreen(viewModel: SearchScreenViewModel = koinViewModel()) {
     val jamRoomService: JamRoomService = koinInject()
     val jamActive by jamRoomService.role.map { it != null }
         .collectAsStateWithLifecycle(initialValue = false)
+    val isJamGuest by jamRoomService.role.map { it == JamRole.Guest }
+        .collectAsStateWithLifecycle(initialValue = false)
     val selectedType = state.selectedSearchType
     val scope = rememberCoroutineScope()
     val savedTrackIds by viewModel.savedTrackIds.collectAsStateWithLifecycle()
@@ -341,6 +344,7 @@ fun SearchScreen(viewModel: SearchScreenViewModel = koinViewModel()) {
                         },
                         onBulkAddToJam = ::bulkAddToJam,
                         isInJam = jamActive,
+                        isJamGuest = isJamGuest,
                         onArtistClick = { artist ->
                             navigationCommands.navigateTo(Routes.Artist(artist.id))
                         },
@@ -372,6 +376,7 @@ fun SearchScreen(viewModel: SearchScreenViewModel = koinViewModel()) {
                         },
                         onBulkAddToJam = ::bulkAddToJam,
                         isInJam = jamActive,
+                        isJamGuest = isJamGuest,
                         onArtistClick = { artist ->
                             navigationCommands.navigateTo(Routes.Artist(artist.id))
                         },
@@ -655,6 +660,7 @@ private fun SearchAllTab(
     onBulkAddToPlaylist: (List<MetadataTrack>) -> Unit,
     onBulkAddToJam: (List<MetadataTrack>) -> Unit,
     isInJam: Boolean,
+    isJamGuest: Boolean,
     onArtistClick: (MetadataArtist.Basic) -> Unit,
     onAlbumClick: (MetadataAlbum.Detailed) -> Unit,
     onArtistsOverflowClick: (MetadataTrack) -> Unit,
@@ -714,6 +720,7 @@ private fun SearchAllTab(
         onBulkAddToPlaylist = onBulkAddToPlaylist,
         onBulkAddToJam = onBulkAddToJam,
         isInJam = isInJam,
+        isJamGuest = isJamGuest,
         onArtistClick = onArtistClick,
         onAlbumClick = onAlbumClick,
         onArtistsOverflowClick = onArtistsOverflowClick,
@@ -803,6 +810,7 @@ private fun SearchTracksTab(
     onBulkAddToPlaylist: (List<MetadataTrack>) -> Unit,
     onBulkAddToJam: (List<MetadataTrack>) -> Unit,
     isInJam: Boolean,
+    isJamGuest: Boolean,
     onArtistClick: (MetadataArtist.Basic) -> Unit,
     onAlbumClick: (MetadataAlbum.Detailed) -> Unit,
     onArtistsOverflowClick: (MetadataTrack) -> Unit,
@@ -834,6 +842,7 @@ private fun SearchTracksTab(
         onBulkAddToPlaylist = onBulkAddToPlaylist,
         onBulkAddToJam = onBulkAddToJam,
         isInJam = isInJam,
+        isJamGuest = isJamGuest,
         onArtistClick = onArtistClick,
         onAlbumClick = onAlbumClick,
         onArtistsOverflowClick = onArtistsOverflowClick,

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/shell/AppShell.kt

@@ -133,13 +133,6 @@ fun AppShell(
     PlayDestinationPickerHost()
 
     Box(modifier = Modifier.fillMaxSize()) {
-        SnackbarHost(
-            hostState = snackbarHostState,
-            modifier = Modifier
-                .align(Alignment.BottomCenter)
-                .padding(bottom = 96.dp),
-        )
-
         val useSidebar = viewModel.useSidebar()
         val bottomOverlayInset = viewModel.bottomOverlayInset(useSidebar)
 
@@ -281,6 +274,15 @@ fun AppShell(
                 }
             }
         }
+
+        // Drawn last so it floats above the players/sheets, just above the
+        // bottom overlay (large player or compact player + bottombar).
+        SnackbarHost(
+            hostState = snackbarHostState,
+            modifier = Modifier
+                .align(Alignment.BottomCenter)
+                .padding(bottom = bottomOverlayInset + 12.dp),
+        )
     }
 }
 

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/shell/player_queue/PlayerQueueContent.kt

@@ -26,6 +26,7 @@ import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
@@ -33,8 +34,12 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material3.DropdownMenu
 import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
@@ -52,6 +57,7 @@ import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import coil3.compose.AsyncImage
+import dev.krtirtho.spotube.core.jam.JamParticipant
 import dev.krtirtho.spotube.core.ui.base.Card
 import dev.krtirtho.spotube.core.ui.base.GhostIconButton
 import dev.krtirtho.spotube.core.ui.base.IconButton
@@ -59,12 +65,15 @@ import dev.krtirtho.spotube.core.ui.base.ListRowTile
 import dev.krtirtho.spotube.core.ui.base.LocalBaseUITheme
 import dev.krtirtho.spotube.core.ui.base.TextField
 import dev.krtirtho.spotube.core.ui.base.copyShape
+import dev.krtirtho.spotube.core.ui.component.AdaptiveDialogBottomSheet
 import dev.krtirtho.spotube.resources.iconsax.Iconsax
 import dev.krtirtho.spotube.resources.iconsax.Iconsax3DotsMore
 import dev.krtirtho.spotube.resources.iconsax.IconsaxDragHandle
 import dev.krtirtho.spotube.resources.iconsax.IconsaxFilterSearch
+import dev.krtirtho.spotube.resources.iconsax.IconsaxCloseSquare
 import dev.krtirtho.spotube.resources.iconsax.IconsaxMusicSquareRemove
 import dev.krtirtho.spotube.resources.iconsax.IconsaxTrash
+import dev.krtirtho.spotube.resources.iconsax.IconsaxUserRemove
 import org.koin.compose.viewmodel.koinViewModel
 import sh.calvin.reorderable.ReorderableItem
 import sh.calvin.reorderable.rememberReorderableLazyListState
@@ -79,6 +88,7 @@ fun PlayerQueueContent(
     val filterQuery = state.filterQuery
     val isFiltered = state.isFiltered
     val isReadOnly = state.isReadOnly
+    var selectedParticipant by remember { mutableStateOf<JamParticipant?>(null) }
 
     val lazyListState = rememberLazyListState()
     val reorderableLazyListState = rememberReorderableLazyListState(
@@ -153,14 +163,133 @@ fun PlayerQueueContent(
                                     onDragStarted = { viewModel.onDragStart() },
                                     onDragStopped = { viewModel.onDragStop() },
                                     showOptions = !isReadOnly,
+                                    enabled = !isReadOnly,
+                                    onParticipantClick = { selectedParticipant = it },
                                 )
                             }
                         }
                     }
                 }
             }
+
+            selectedParticipant?.let { participant ->
+                ParticipantDialog(
+                    participant = participant,
+                    isJamHost = state.isJamHost,
+                    onDismiss = { selectedParticipant = null },
+                    onKick = { viewModel.kickParticipant(participant.id) },
+                    onBan = { viewModel.banParticipant(participant.id) },
+                    onRemoveSuggestions = { viewModel.removeParticipantTracks(participant.id) },
+                )
             }
         }
+    }
+}
+
+@Composable
+private fun ParticipantDialog(
+    participant: JamParticipant,
+    isJamHost: Boolean,
+    onDismiss: () -> Unit,
+    onKick: () -> Unit,
+    onBan: () -> Unit,
+    onRemoveSuggestions: () -> Unit,
+) {
+    AdaptiveDialogBottomSheet(
+        onDismiss = onDismiss,
+        title = { Text(participant.displayName, style = MaterialTheme.typography.titleLarge) },
+    ) {
+        Column(
+            modifier = Modifier.fillMaxWidth(),
+            verticalArrangement = Arrangement.spacedBy(4.dp),
+        ) {
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.spacedBy(10.dp),
+                modifier = Modifier.padding(vertical = 8.dp),
+            ) {
+                ParticipantAvatar(participant, size = 40)
+                Text(
+                    text = participant.displayName,
+                    style = MaterialTheme.typography.bodyLarge,
+                )
+                if (participant.isHost) {
+                    Text(
+                        text = "Host",
+                        style = MaterialTheme.typography.labelSmall,
+                        color = MaterialTheme.colorScheme.primary,
+                    )
+                }
+            }
+
+            if (isJamHost && !participant.isHost) {
+                HorizontalDivider(
+                    color = MaterialTheme.colorScheme.outlineVariant.copy(alpha = 0.5f),
+                )
+                ListRowTile(
+                    onClick = {
+                        onKick()
+                        onDismiss()
+                    },
+                    leading = {
+                        Icon(
+                            imageVector = Iconsax.IconsaxCloseSquare,
+                            contentDescription = null,
+                            tint = MaterialTheme.colorScheme.error,
+                        )
+                    },
+                    title = { Text("Kick") },
+                    subtitle = { Text("Remove them from the session") },
+                )
+                ListRowTile(
+                    onClick = {
+                        onBan()
+                        onDismiss()
+                    },
+                    leading = {
+                        Icon(
+                            imageVector = Iconsax.IconsaxUserRemove,
+                            contentDescription = null,
+                            tint = MaterialTheme.colorScheme.error,
+                        )
+                    },
+                    title = { Text("Ban") },
+                    subtitle = { Text("Kick and prevent them from rejoining") },
+                )
+                ListRowTile(
+                    onClick = {
+                        onRemoveSuggestions()
+                        onDismiss()
+                    },
+                    leading = {
+                        Icon(
+                            imageVector = Iconsax.IconsaxMusicSquareRemove,
+                            contentDescription = null,
+                        )
+                    },
+                    title = { Text("Remove suggestions") },
+                    subtitle = { Text("Remove every track they added to the queue") },
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun ParticipantAvatar(participant: JamParticipant, size: Int) {
+    Box(
+        modifier = Modifier
+            .size(size.dp)
+            .clip(CircleShape)
+            .background(MaterialTheme.colorScheme.primaryContainer),
+        contentAlignment = Alignment.Center,
+    ) {
+        Text(
+            text = participant.displayName.firstOrNull()?.uppercase()?.take(1) ?: "?",
+            style = MaterialTheme.typography.labelMedium,
+            color = MaterialTheme.colorScheme.onPrimaryContainer,
+        )
+    }
 }
 
 @Composable
@@ -172,11 +301,14 @@ private fun QueueItemRow(
     onDragStarted: () -> Unit,
     onDragStopped: () -> Unit,
     showOptions: Boolean = true,
+    enabled: Boolean = true,
+    onParticipantClick: (JamParticipant) -> Unit = {},
 ) {
     var showMenu by remember { mutableStateOf(false) }
 
     ListRowTile(
         onClick = onPlayClick,
+        enabled = enabled,
         selected = item.isCurrent,
         modifier = Modifier,
         leading = {
@@ -260,6 +392,24 @@ private fun QueueItemRow(
 
             Spacer(modifier = Modifier.width(4.dp))
 
+            item.addedByParticipant?.let { participant ->
+                Box(
+                    modifier = Modifier
+                        .size(28.dp)
+                        .clip(CircleShape)
+                        .background(MaterialTheme.colorScheme.surfaceVariant)
+                        .clickable { onParticipantClick(participant) },
+                    contentAlignment = Alignment.Center,
+                ) {
+                    Text(
+                        text = participant.displayName.firstOrNull()?.uppercase()?.take(1) ?: "?",
+                        style = MaterialTheme.typography.labelSmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    )
+                }
+                Spacer(modifier = Modifier.width(4.dp))
+            }
+
             if (showOptions) {
                 Box {
                     GhostIconButton(

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/shell/player_queue/PlayerQueueContentViewModel.kt

@@ -21,6 +21,7 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dev.krtirtho.spotube.core.audioplayer.AudioPlayerQueue
 import dev.krtirtho.spotube.core.audioplayer.QueueEntry
+import dev.krtirtho.spotube.core.jam.JamParticipant
 import dev.krtirtho.spotube.core.jam.JamRole
 import dev.krtirtho.spotube.core.jam.JamRoomService
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -40,6 +41,8 @@ data class QueueItemUi(
     val isCurrent: Boolean,
     val imageUrl: String?,
     val originalIndex: Int,
+    /** Participant who added this item to the jam queue, if any. */
+    val addedByParticipant: JamParticipant? = null,
 )
 
 data class QueueContentUiState(
@@ -48,6 +51,8 @@ data class QueueContentUiState(
     val isFiltered: Boolean = false,
     /** Guests cannot reorder/remove/clear the shared jam queue. */
     val isReadOnly: Boolean = false,
+    val isJamHost: Boolean = false,
+    val participants: List<JamParticipant> = emptyList(),
 )
 
 class PlayerQueueContentViewModel(
@@ -65,7 +70,8 @@ class PlayerQueueContentViewModel(
     private val computedItems: StateFlow<List<QueueItemUi>> = combine(
         audioPlayerQueue.queueFlow,
         audioPlayerQueue.currentQueueEntryFlow,
-    ) { queue, currentEntry ->
+        jamRoomService.participants,
+    ) { queue, currentEntry, participants ->
         val currentIndex = if (currentEntry != null) {
             queue.indexOfFirst { it.matchesCurrent(currentEntry) }
         } else {
@@ -94,9 +100,9 @@ class PlayerQueueContentViewModel(
                 }
             }
 
-            val addedBy = entry.addedBy
+            val addedByParticipant = participants.firstOrNull { it.id == entry.addedBy }
-            if (addedBy.isNotBlank()) {
+            if (addedByParticipant != null) {
-                subtitle = "$subtitle • Added by $addedBy"
+                subtitle = "$subtitle • Added by ${addedByParticipant.displayName}"
             }
 
             QueueItemUi(
@@ -107,6 +113,7 @@ class PlayerQueueContentViewModel(
                 isCurrent = index == currentIndex,
                 imageUrl = imageUrl,
                 originalIndex = index,
+                addedByParticipant = addedByParticipant,
             )
         }
     }.stateIn(
@@ -120,7 +127,8 @@ class PlayerQueueContentViewModel(
         reorderBuffer,
         queueFilterFlow,
         jamRoomService.role,
-    ) { items, buffer, filterQuery, role ->
+        jamRoomService.participants,
+    ) { items, buffer, filterQuery, role, participants ->
         val normalizedFilter = filterQuery.trim().lowercase()
         val isFiltered = normalizedFilter.isNotBlank()
         val filtered = if (isFiltered) {
@@ -136,6 +144,8 @@ class PlayerQueueContentViewModel(
             displayItems = buffer ?: filtered,
             isFiltered = isFiltered,
             isReadOnly = role == JamRole.Guest,
+            isJamHost = role == JamRole.Host,
+            participants = participants,
         )
     }.stateIn(
         scope = viewModelScope,
@@ -156,7 +166,7 @@ class PlayerQueueContentViewModel(
     }
 
     fun playQueueItem(index: Int) {
-        if (index < 0) return
+        if (index < 0 || queueContentUiState.value.isReadOnly) return
         viewModelScope.launch {
             audioPlayerQueue.jumpTo(index)
         }
@@ -187,6 +197,27 @@ class PlayerQueueContentViewModel(
         }
     }
 
+    // ---------- Jam participant moderation (host only) ----------
+
+    fun kickParticipant(participantId: String) {
+        if (!queueContentUiState.value.isJamHost) return
+        viewModelScope.launch { jamRoomService.kickParticipant(participantId) }
+    }
+
+    fun banParticipant(participantId: String) {
+        if (!queueContentUiState.value.isJamHost) return
+        viewModelScope.launch { jamRoomService.banParticipant(participantId) }
+    }
+
+    /** Removes every queue item that the given participant suggested. */
+    fun removeParticipantTracks(participantId: String) {
+        if (!queueContentUiState.value.isJamHost) return
+        viewModelScope.launch {
+            val entries = audioPlayerQueue.queueFlow.value.filter { it.addedBy == participantId }
+            entries.forEach { audioPlayerQueue.removeFromQueue(it) }
+        }
+    }
+
     fun onDragStart() {
         if (reorderBuffer.value != null) return
         if (queueContentUiState.value.isReadOnly) return

composeApp/src/commonMain/kotlin/dev/krtirtho/spotube/modules/shell/player_queue/QueueSheet.kt

@@ -38,6 +38,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
+import dev.krtirtho.spotube.modules.shell.LocalAppShellBottomInset
 
 private val SlidingSheetBreakpoint = 840.dp
 
@@ -68,7 +69,11 @@ private fun SlidingQueueSheet(
             visible = isVisible,
             modifier = Modifier
                 .align(Alignment.TopEnd)
-                .padding(top = 12.dp, end = 12.dp, bottom = 12.dp),
+                .padding(
+                    top = 12.dp,
+                    end = 12.dp,
+                    bottom = 12.dp + LocalAppShellBottomInset.current,
+                ),
             enter = slideInHorizontally { fullWidth -> fullWidth / 2 } + fadeIn(),
             exit = slideOutHorizontally { fullWidth -> fullWidth / 2 } + fadeOut(),
         ) {