Update Android Auto chapters and bookmarks

android/app/src/main/java/com/audiobookshelf/app/player/MediaSessionCallback.kt

@@ -69,12 +69,20 @@ class MediaSessionCallback(var playerNotificationService:PlayerNotificationServi
   }
 
 override fun onSkipToPrevious() {
+  if (playerNotificationService.isAndroidAutoPlayback()) {
+    playerNotificationService.skipToPreviousChapter()
+  } else {
     playerNotificationService.skipToPrevious()
   }
+}
 
 override fun onSkipToNext() {
+  if (playerNotificationService.isAndroidAutoPlayback()) {
+    playerNotificationService.skipToNextChapter()
+  } else {
     playerNotificationService.skipToNext()
   }
+}
 
   override fun onFastForward() {
     playerNotificationService.jumpForward()
@@ -85,8 +93,38 @@ class MediaSessionCallback(var playerNotificationService:PlayerNotificationServi
   }
 
 override fun onSeekTo(pos: Long) {
-    val currentTrackStartOffset = playerNotificationService.getCurrentTrackStartOffsetMs()
+  if (playerNotificationService.isAndroidAutoPlayback()) {
-    playerNotificationService.seekPlayer(currentTrackStartOffset + pos)
+    val chapter = playerNotificationService.getCurrentBookChapter()
+
+    if (chapter != null) {
+      val chapterDuration =
+          (chapter.endMs - chapter.startMs).coerceAtLeast(0L)
+
+      val chapterPosition =
+          pos.coerceIn(0L, chapterDuration)
+
+      val absolutePosition =
+          chapter.startMs + chapterPosition
+
+      Log.d(
+          tag,
+          "Android Auto chapter seek: " +
+              "pos=$pos " +
+              "chapter=${chapter.startMs}-${chapter.endMs} " +
+              "absolute=$absolutePosition"
+      )
+
+      playerNotificationService.seekPlayer(absolutePosition)
+      return
+    }
+  }
+
+  val currentTrackStartOffset =
+      playerNotificationService.getCurrentTrackStartOffsetMs()
+
+  playerNotificationService.seekPlayer(
+      currentTrackStartOffset + pos
+  )
 }
 
   private fun onChangeSpeed() {
@@ -110,6 +148,144 @@ class MediaSessionCallback(var playerNotificationService:PlayerNotificationServi
 
   override fun onPlayFromMediaId(mediaId: String?, extras: Bundle?) {
     Log.d(tag, "ON PLAY FROM MEDIA ID $mediaId")
+
+    if (
+      mediaId != null &&
+      mediaId.startsWith(
+          ANDROID_AUTO_BOOKMARK_PLAY_PREFIX
+      )
+    ) {
+      val bookmarkTime =
+          mediaId
+              .removePrefix(
+                  ANDROID_AUTO_BOOKMARK_PLAY_PREFIX
+              )
+              .toLongOrNull()
+
+      if (bookmarkTime == null) {
+        Log.e(
+            tag,
+            "Invalid Android Auto bookmark play ID: " +
+                mediaId
+        )
+        return
+      }
+
+      Handler(Looper.getMainLooper()).post {
+        playerNotificationService.selectAndroidAutoBookmark(
+            bookmarkTime,
+            true
+        )
+      }
+
+      return
+    }
+
+    if (
+      mediaId != null &&
+      mediaId.startsWith(
+          ANDROID_AUTO_BOOKMARK_DELETE_PREFIX
+      )
+    ) {
+      val bookmarkTime =
+          mediaId
+              .removePrefix(
+                  ANDROID_AUTO_BOOKMARK_DELETE_PREFIX
+              )
+              .toLongOrNull()
+
+      val libraryItemId =
+          playerNotificationService
+              .currentPlaybackSession
+              ?.libraryItemId
+
+      if (
+        bookmarkTime == null ||
+        libraryItemId.isNullOrBlank()
+      ) {
+        Log.e(
+            tag,
+            "Invalid Android Auto bookmark delete ID: " +
+                mediaId
+        )
+        return
+      }
+
+      Log.d(
+          tag,
+          "Android Auto bookmark delete selected: " +
+              "libraryItemId=$libraryItemId, " +
+              "time=$bookmarkTime"
+      )
+
+      playerNotificationService
+          .clientEventEmitter
+          ?.onBookmarkDeleteRequested(
+              libraryItemId,
+              bookmarkTime
+          )
+
+      return
+    }
+
+    // Android Auto bookmark items seek within the current audiobook.
+    if (
+      mediaId != null &&
+      mediaId.startsWith(ANDROID_AUTO_BOOKMARK_PREFIX)
+    ) {
+      val bookmarkTime =
+          mediaId
+              .removePrefix(ANDROID_AUTO_BOOKMARK_PREFIX)
+              .toLongOrNull()
+
+      if (bookmarkTime == null) {
+        Log.e(
+            tag,
+            "Invalid Android Auto bookmark media ID: $mediaId"
+        )
+        return
+      }
+
+      Handler(Looper.getMainLooper()).post {
+        playerNotificationService.selectAndroidAutoBookmark(
+            bookmarkTime,
+            true
+        )
+      }
+
+      return
+    }
+
+    // Android Auto chapter browser items use a dedicated media ID.
+    // Selecting one must seek within the current audiobook instead of
+    // trying to load it as a new library item.
+    if (
+      mediaId != null &&
+      mediaId.startsWith(ANDROID_AUTO_CHAPTER_PREFIX)
+    ) {
+      val chapterId =
+          mediaId
+              .removePrefix(ANDROID_AUTO_CHAPTER_PREFIX)
+              .toIntOrNull()
+
+      if (chapterId == null) {
+        Log.e(
+            tag,
+            "Invalid Android Auto chapter media ID: $mediaId"
+        )
+        return
+      }
+
+      Handler(Looper.getMainLooper()).post {
+        playerNotificationService.selectAndroidAutoChapter(
+            chapterId,
+            true
+        )
+      }
+
+      return
+    }
+
     val libraryItemWrapper: LibraryItemWrapper?
     var podcastEpisode: PodcastEpisode? = null
 
@@ -281,6 +457,8 @@ class MediaSessionCallback(var playerNotificationService:PlayerNotificationServi
       CUSTOM_ACTION_SKIP_FORWARD -> onSkipToNext()
       CUSTOM_ACTION_SKIP_BACKWARD -> onSkipToPrevious()
       CUSTOM_ACTION_CHANGE_SPEED -> onChangeSpeed()
+      CUSTOM_ACTION_ADD_BOOKMARK ->
+        playerNotificationService.requestBookmarkAtCurrentPosition()
     }
   }
 }

android/app/src/main/java/com/audiobookshelf/app/player/MediaSessionPlaybackPreparer.kt

@@ -46,6 +46,29 @@ class MediaSessionPlaybackPreparer(var playerNotificationService:PlayerNotificat
   override fun onPrepareFromMediaId(mediaId: String, playWhenReady: Boolean, extras: Bundle?) {
     Log.d(tag, "ON PREPARE FROM MEDIA ID $mediaId $playWhenReady")
 
+    if (mediaId.startsWith(ANDROID_AUTO_CHAPTER_PREFIX)) {
+      val chapterId =
+          mediaId
+              .removePrefix(ANDROID_AUTO_CHAPTER_PREFIX)
+              .toIntOrNull()
+
+      if (chapterId == null) {
+        Log.e(
+            tag,
+            "Invalid Android Auto chapter media ID: $mediaId"
+        )
+        return
+      }
+
+      Handler(Looper.getMainLooper()).post {
+        playerNotificationService.selectAndroidAutoChapter(
+            chapterId,
+            playWhenReady
+        )
+      }
+      return
+    }
+
     val libraryItemWrapper: LibraryItemWrapper?
     var podcastEpisode: PodcastEpisode? = null
 

android/app/src/main/java/com/audiobookshelf/app/player/PlayerConstants.kt

@@ -5,6 +5,7 @@ const val CUSTOM_ACTION_JUMP_BACKWARD = "com.audiobookshelf.customAction.jump_ba
 const val CUSTOM_ACTION_SKIP_FORWARD = "com.audiobookshelf.customAction.skip_forward";
 const val CUSTOM_ACTION_SKIP_BACKWARD = "com.audiobookshelf.customAction.skip_backward";
 const val CUSTOM_ACTION_CHANGE_SPEED = "com.audiobookshelf.customAction.change_speed";
+const val CUSTOM_ACTION_ADD_BOOKMARK = "com.audiobookshelf.customAction.add_bookmark";
 
 const val PLAYMETHOD_DIRECTPLAY = 0
 const val PLAYMETHOD_DIRECTSTREAM = 1
@@ -14,6 +15,17 @@ const val PLAYMETHOD_LOCAL = 3
 //
 // MEDIA BROWSER STUFF (ANDROID AUTO)
 //
+const val ANDROID_AUTO_CHAPTERS_ROOT = "android-auto-chapters"
+const val ANDROID_AUTO_BOOKMARKS_ROOT = "android-auto-bookmarks"
+const val ANDROID_AUTO_BOOKMARK_PREFIX = "android-auto-bookmark:"
+const val ANDROID_AUTO_BOOKMARK_MENU_PREFIX = "android-auto-bookmark-menu:"
+const val ANDROID_AUTO_BOOKMARK_PLAY_PREFIX = "android-auto-bookmark-play:"
+const val ANDROID_AUTO_BOOKMARK_DELETE_PREFIX = "android-auto-bookmark-delete:"
+
+
+const val ANDROID_AUTO_ACTION_DELETE_BOOKMARK = "android-auto-action-delete-bookmark"
+const val ANDROID_AUTO_CHAPTER_PREFIX = "android-auto-chapter:"
+
 const val ANDROID_AUTO_PKG_NAME = "com.google.android.projection.gearhead"
 const val ANDROID_AUTO_SIMULATOR_PKG_NAME = "com.google.android.autosimulator"
 const val ANDROID_WEARABLE_PKG_NAME = "com.google.android.wearable.app"

android/app/src/main/java/com/audiobookshelf/app/player/PlayerListener.kt

@@ -158,6 +158,11 @@ class PlayerListener(var playerNotificationService:PlayerNotificationService) :
     if (events.contains(Player.EVENT_PLAYLIST_METADATA_CHANGED)) {
       Log.d(tag, "EVENT_PLAYLIST_METADATA_CHANGED ${playerNotificationService.getMediaPlayer()}")
     }
+
+if (playerNotificationService.isAndroidAutoPlayback()) {
+  playerNotificationService.updateAndroidAutoMediaSessionState()
+}
+
   }
 
   private fun calcPauseSeekBackTime() : Long {

android/app/src/main/java/com/audiobookshelf/app/plugins/AbsAudioPlayer.kt

@@ -7,6 +7,7 @@ import com.audiobookshelf.app.MainActivity
 import com.audiobookshelf.app.data.*
 import com.audiobookshelf.app.device.DeviceManager
 import com.audiobookshelf.app.media.MediaEventManager
+import com.audiobookshelf.app.player.AndroidAutoBookmark
 import com.audiobookshelf.app.player.CastManager
 import com.audiobookshelf.app.player.PlayerListener
 import com.audiobookshelf.app.player.PlayerNotificationService
@@ -114,6 +115,31 @@ class AbsAudioPlayer : Plugin() {
         override fun onPlaybackSpeedChanged(playbackSpeed:Float) {
           emit("onPlaybackSpeedChanged", playbackSpeed)
         }
+
+        override fun onBookmarkRequested(
+            libraryItemId: String,
+            timeSeconds: Long
+        ) {
+          val ret = JSObject()
+          ret.put("libraryItemId", libraryItemId)
+          ret.put("time", timeSeconds)
+
+          notifyListeners("onBookmarkRequested", ret)
+        }
+
+        override fun onBookmarkDeleteRequested(
+            libraryItemId: String,
+            timeSeconds: Long
+        ) {
+          val ret = JSObject()
+          ret.put("libraryItemId", libraryItemId)
+          ret.put("time", timeSeconds)
+
+          notifyListeners(
+              "onBookmarkDeleteRequested",
+              ret
+          )
+        }
       })
 
       MediaEventManager.clientEventEmitter = playerNotificationService.clientEventEmitter
@@ -292,6 +318,46 @@ class AbsAudioPlayer : Plugin() {
     }
   }
 
+  @PluginMethod
+  fun setAndroidAutoBookmarks(call: PluginCall) {
+    val bookmarksJson = call.getString("value")
+
+    if (bookmarksJson == null) {
+      call.reject("Missing bookmarks JSON")
+      return
+    }
+
+    try {
+      val bookmarksType =
+          jacksonMapper.typeFactory.constructCollectionType(
+              ArrayList::class.java,
+              AndroidAutoBookmark::class.java
+          )
+
+      val bookmarks: List<AndroidAutoBookmark> =
+          jacksonMapper.readValue(
+              bookmarksJson,
+              bookmarksType
+          )
+
+      playerNotificationService.setAndroidAutoBookmarks(
+          bookmarks
+      )
+
+      call.resolve()
+    } catch (error: Exception) {
+      Log.e(
+          tag,
+          "setAndroidAutoBookmarks failed",
+          error
+      )
+      call.reject(
+          "Invalid bookmarks JSON",
+          error
+      )
+    }
+  }
+
   @PluginMethod
   fun getCurrentTime(call: PluginCall) {
     Handler(Looper.getMainLooper()).post {

components/app/AudioPlayer.vue

@@ -1,85 +1,280 @@
 <template>
+  <div class="audio-player-root">
     <!-- Main container - only shows when playback session exists, applies fullscreen/platform classes -->
-  <div v-if="playbackSession" id="streamContainer" class="fixed top-0 left-0 layout-wrapper right-0 z-50 pointer-events-none" :class="{ fullscreen: showFullscreen, 'ios-player': $platform === 'ios', 'web-player': $platform === 'web' }">
+  <div
+    v-if="playbackSession && !showAndroidAutoDebug"
+    id="streamContainer"
+    class="fixed top-0 left-0 layout-wrapper right-0 z-50 pointer-events-none"
+    :class="{
+      fullscreen: showFullscreen,
+      'ios-player': $platform === 'ios',
+      'web-player': $platform === 'web'
+    }"
+  >
+
     <!-- Fullscreen overlays: colored background and menu overlays -->
-    <div v-if="showFullscreen" class="w-full h-full z-10 absolute top-0 left-0 pointer-events-auto" :style="{ backgroundColor: coverRgb }">
+    <div
+      v-if="showFullscreen && !showAndroidAutoDebug"
+      class="w-full h-full z-10 absolute top-0 left-0 pointer-events-auto"
+      :style="{ backgroundColor: coverRgb }"
+    >
       <!-- Background gradient for player -->
-      <div class="w-full h-full absolute top-0 left-0 pointer-events-none" style="background: var(--gradient-audio-player)" />
+      <div
+        class="w-full h-full absolute top-0 left-0 pointer-events-none"
+        style="background: var(--gradient-audio-player)"
+      />
 
       <!-- Collapse button - minimizes player -->
       <div class="top-4 left-4 absolute cursor-pointer">
-        <span class="material-symbols text-5xl" :class="{ 'text-black text-opacity-75': coverBgIsLight && theme !== 'black' }" @click="collapseFullscreen">keyboard_arrow_down</span>
+        <span
+          class="material-symbols text-5xl"
+          :class="{
+            'text-black text-opacity-75':
+              coverBgIsLight && theme !== 'black'
+          }"
+          @click="collapseFullscreen"
+        >
+          keyboard_arrow_down
+        </span>
       </div>
 
-      <!-- Cast button - Chromecast toggle -->
+      <!-- Top right controls -->
-      <div v-show="showCastBtn" class="top-6 right-16 absolute cursor-pointer">
+      <div class="top-6 right-4 absolute flex items-center gap-5 z-50">
-        <span class="material-symbols text-3xl" :class="coverBgIsLight && theme !== 'black' ? 'text-black' : ''" @click="castClick">{{ isCasting ? 'cast_connected' : 'cast' }}</span>
+
+        <!-- Cast -->
+        <span
+          v-if="showCastBtn"
+          class="material-symbols text-3xl cursor-pointer"
+          :class="
+            coverBgIsLight && theme !== 'black'
+              ? 'text-black'
+              : ''
+          "
+          @click.stop="castClick"
+        >
+          {{ isCasting ? 'cast_connected' : 'cast' }}
+        </span>
+
+        <!-- Android Auto DEBUG -->
+        <span
+          class="material-symbols text-3xl cursor-pointer"
+          :class="{
+            'text-black text-opacity-75':
+              coverBgIsLight && theme !== 'black'
+          }"
+          @click.stop="toggleAndroidAutoDebug"
+        >
+          directions_car
+        </span>
+
+        <!-- More menu -->
+        <span
+          class="material-symbols text-3xl cursor-pointer"
+          :class="{
+            'text-black text-opacity-75':
+              coverBgIsLight && theme !== 'black'
+          }"
+          @click.stop="showMoreMenuDialog = true"
+        >
+          more_vert
+        </span>
+
       </div>
 
-      <!-- Player options menu button -->
+      <!-- Playback method indicator -->
-      <div class="top-6 right-4 absolute cursor-pointer">
+      <p
-        <span class="material-symbols text-3xl" :class="{ 'text-black text-opacity-75': coverBgIsLight && theme !== 'black' }" @click="showMoreMenuDialog = true">more_vert</span>
+        class="top-4 absolute left-0 right-0 mx-auto text-center uppercase tracking-widest text-opacity-75 z-50"
-      </div>
+        :class="{
-
+          'text-black text-opacity-75':
-      <!-- Playback method indicator (Direct/Local/Transcode) -->
+            coverBgIsLight && theme !== 'black'
-      <p class="top-4 absolute left-0 right-0 mx-auto text-center uppercase tracking-widest text-opacity-75 z-50" :class="{ 'text-black text-opacity-75': coverBgIsLight && theme !== 'black' }" style="font-size: 10px">{{ isDirectPlayMethod ? $strings.LabelPlaybackDirect : isLocalPlayMethod ? $strings.LabelPlaybackLocal : $strings.LabelPlaybackTranscode }}</p>
+        }"
+        style="font-size: 10px"
+      >
+        {{
+          isDirectPlayMethod
+            ? $strings.LabelPlaybackDirect
+            : isLocalPlayMethod
+              ? $strings.LabelPlaybackLocal
+              : $strings.LabelPlaybackTranscode
+        }}
+      </p>
     </div>
 
     <!-- Overall book progress bar -->
-    <div v-if="playerSettings.useChapterTrack && playerSettings.useTotalTrack && showFullscreen" class="absolute total-track w-full z-30 px-6">
+    <div
+      v-if="
+        playerSettings.useChapterTrack &&
+        playerSettings.useTotalTrack &&
+        showFullscreen &&
+        !showAndroidAutoDebug
+      "
+      class="absolute total-track w-full z-30 px-6"
+    >
       <div class="flex">
-        <p class="font-mono text-fg" style="font-size: 0.8rem">{{ currentTimePretty }}</p>
+        <p class="font-mono text-fg" style="font-size: 0.8rem">
+          {{ currentTimePretty }}
+        </p>
+
         <div class="flex-grow" />
-        <p class="font-mono text-fg" style="font-size: 0.8rem">{{ totalTimeRemainingPretty }}</p>
+
+        <p class="font-mono text-fg" style="font-size: 0.8rem">
+          {{ totalTimeRemainingPretty }}
+        </p>
       </div>
+
       <div class="w-full">
-        <div class="h-1 w-full bg-track/50 relative rounded-full overflow-hidden">
+        <div
-          <div ref="totalReadyTrack" class="h-full bg-track-buffered absolute top-0 left-0 pointer-events-none rounded-full" />
+          class="h-1 w-full bg-track/50 relative rounded-full overflow-hidden"
-          <div ref="totalBufferedTrack" class="h-full bg-track absolute top-0 left-0 pointer-events-none rounded-full" />
+        >
-          <div ref="totalPlayedTrack" class="h-full bg-track-cursor absolute top-0 left-0 pointer-events-none rounded-full" />
+          <div
+            ref="totalReadyTrack"
+            class="h-full bg-track-buffered absolute top-0 left-0 pointer-events-none rounded-full"
+          />
+
+          <div
+            ref="totalBufferedTrack"
+            class="h-full bg-track absolute top-0 left-0 pointer-events-none rounded-full"
+          />
+
+          <div
+            ref="totalPlayedTrack"
+            class="h-full bg-track-cursor absolute top-0 left-0 pointer-events-none rounded-full"
+          />
         </div>
       </div>
     </div>
 
     <!-- Book cover wrapper -->
-    <div class="cover-wrapper absolute z-30 pointer-events-auto" @click="clickContainer">
+    <div
+      class="cover-wrapper absolute z-30 pointer-events-auto"
+      @click="clickContainer"
+    >
       <div class="w-full h-full flex justify-center">
-        <covers-book-cover v-if="libraryItem || localLibraryItemCoverSrc" ref="cover" :library-item="libraryItem" :download-cover="localLibraryItemCoverSrc" :width="bookCoverWidth" :book-cover-aspect-ratio="bookCoverAspectRatio" raw @imageLoaded="coverImageLoaded" />
+        <covers-book-cover
+          v-if="libraryItem || localLibraryItemCoverSrc"
+          ref="cover"
+          :library-item="libraryItem"
+          :download-cover="localLibraryItemCoverSrc"
+          :width="bookCoverWidth"
+          :book-cover-aspect-ratio="bookCoverAspectRatio"
+          raw
+          @imageLoaded="coverImageLoaded"
+        />
       </div>
 
-      <!-- Sync failed indicator - shows error icon if progress sync failed -->
+      <!-- Sync failed indicator -->
-      <div v-if="syncStatus === $constants.SyncStatus.FAILED" class="absolute top-0 left-0 w-full h-full flex items-center justify-center z-30" @click.stop="showSyncsFailedDialog">
+      <div
-        <span class="material-symbols text-error text-3xl">error</span>
+        v-if="syncStatus === $constants.SyncStatus.FAILED"
+        class="absolute top-0 left-0 w-full h-full flex items-center justify-center z-30"
+        @click.stop="showSyncsFailedDialog"
+      >
+        <span class="material-symbols text-error text-3xl">
+          error
+        </span>
       </div>
     </div>
 
     <!-- Title and author text -->
-    <div class="title-author-texts absolute z-30 left-0 right-0 overflow-hidden" @click="clickTitleAndAuthor">
+    <div
-      <div ref="titlewrapper" class="overflow-hidden relative">
+      class="title-author-texts absolute z-30 left-0 right-0 overflow-hidden"
+      @click="clickTitleAndAuthor"
+    >
+      <div
+        ref="titlewrapper"
+        class="overflow-hidden relative"
+      >
         <p class="title-text whitespace-nowrap"></p>
       </div>
-      <p class="author-text text-fg text-opacity-75 truncate">{{ authorName }}</p>
+
+      <p class="author-text text-fg text-opacity-75 truncate">
+        {{ authorName }}
+      </p>
     </div>
 
-    <div id="playerContent" class="playerContainer w-full z-20 absolute bottom-0 left-0 right-0 p-2 pointer-events-auto transition-all" :style="{ backgroundColor: showFullscreen ? '' : coverRgb }" @click="clickContainer">
+    <!-- Main player content -->
-      <!-- Top controls bar - fullscreen only: bookmarks, speed, sleep timer, chapters -->
+    <div
-      <div v-if="showFullscreen" class="absolute bottom-4 left-0 right-0 w-full pb-4 pt-2 mx-auto px-6" style="max-width: 414px">
+      v-if="!showAndroidAutoDebug"
+      id="playerContent"
+      class="playerContainer w-full z-20 absolute bottom-0 left-0 right-0 p-2 pointer-events-auto transition-all"
+      :style="{ backgroundColor: showFullscreen ? '' : coverRgb }"
+      @click="clickContainer"
+    >
+
+      <!-- Top controls bar - fullscreen only -->
+      <div
+        v-if="showFullscreen"
+        class="absolute bottom-4 left-0 right-0 w-full pb-4 pt-2 mx-auto px-6"
+        style="max-width: 414px"
+      >
         <div class="flex items-center justify-between pointer-events-auto">
-          <span v-if="!isPodcast && serverLibraryItemId && socketConnected" class="material-symbols text-3xl text-fg-muted cursor-pointer" :class="{ fill: bookmarks.length }" @click="$emit('showBookmarks')">bookmark</span>
+
+          <span
+            v-if="!isPodcast && serverLibraryItemId && socketConnected"
+            class="material-symbols text-3xl text-fg-muted cursor-pointer"
+            :class="{ fill: bookmarks.length }"
+            @click="$emit('showBookmarks')"
+          >
+            bookmark
+          </span>
+
           <!-- hidden for podcasts but still using this as a placeholder -->
-          <span v-else class="material-symbols text-3xl text-white text-opacity-0">bookmark</span>
+          <span
+            v-else
+            class="material-symbols text-3xl text-white text-opacity-0"
+          >
+            bookmark
+          </span>
 
-          <span class="font-mono text-fg-muted cursor-pointer" style="font-size: 1.35rem" @click="$emit('selectPlaybackSpeed')">{{ currentPlaybackRate }}x</span>
+          <span
-          <svg v-if="!sleepTimerRunning" xmlns="http://www.w3.org/2000/svg" class="h-7 w-7 text-fg-muted cursor-pointer" fill="none" viewBox="0 0 24 24" stroke="currentColor" @click.stop="$emit('showSleepTimer')">
+            class="font-mono text-fg-muted cursor-pointer"
-            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M20.354 15.354A9 9 0 018.646 3.646 9.003 9.003 0 0012 21a9.003 9.003 0 008.354-5.646z" />
+            style="font-size: 1.35rem"
+            @click="$emit('selectPlaybackSpeed')"
+          >
+            {{ currentPlaybackRate }}x
+          </span>
+
+          <svg
+            v-if="!sleepTimerRunning"
+            xmlns="http://www.w3.org/2000/svg"
+            class="h-7 w-7 text-fg-muted cursor-pointer"
+            fill="none"
+            viewBox="0 0 24 24"
+            stroke="currentColor"
+            @click.stop="$emit('showSleepTimer')"
+          >
+            <path
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              stroke-width="2"
+              d="M20.354 15.354A9 9 0 018.646 3.646 9.003 9.003 0 0012 21a9.003 9.003 0 008.354-5.646z"
+            />
           </svg>
-          <div v-else class="h-7 w-7 flex items-center justify-around cursor-pointer" @click.stop="$emit('showSleepTimer')">
+
-            <p class="text-xl font-mono text-success">{{ sleepTimeRemainingPretty }}</p>
+          <div
+            v-else
+            class="h-7 w-7 flex items-center justify-around cursor-pointer"
+            @click.stop="$emit('showSleepTimer')"
+          >
+            <p class="text-xl font-mono text-success">
+              {{ sleepTimeRemainingPretty }}
+            </p>
           </div>
 
-          <span class="material-symbols text-3xl text-fg cursor-pointer" :class="chapters.length ? 'text-opacity-75' : 'text-opacity-10'" @click="clickChaptersBtn">format_list_bulleted</span>
+          <span
+            class="material-symbols text-3xl text-fg cursor-pointer"
+            :class="
+              chapters.length
+                ? 'text-opacity-75'
+                : 'text-opacity-10'
+            "
+            @click="clickChaptersBtn"
+          >
+            format_list_bulleted
+          </span>
+
         </div>
       </div>
+
       <div v-else class="w-full h-full absolute top-0 left-0 pointer-events-none" style="background: var(--gradient-minimized-audio-player)" />
 
       <!-- Playback controls - jump buttons, play/pause, chapter navigation -->
@@ -126,6 +321,177 @@
     <modals-chapters-modal v-model="showChapterModal" :current-chapter="currentChapter" :chapters="chapters" :playback-rate="currentPlaybackRate" @select="selectChapter" />
     <!-- More menu dialog - player settings and options -->
     <modals-dialog v-model="showMoreMenuDialog" :items="menuItems" width="80vw" @action="clickMenuAction" />
+  </div>
+    <!-- Android Auto DEBUG panel -->
+    <div
+      v-if="showFullscreen && showAndroidAutoDebug"
+      class="fixed left-0 top-0 w-full h-full z-[2147483647] flex items-center justify-center bg-transparent pointer-events-auto"
+    >
+    <div class="w-full max-w-md mx-4 rounded-xl bg-gray-900 text-white p-5 shadow-xl">
+
+
+      <div class="flex items-center justify-between mb-4">
+        <div>
+          <div class="text-lg font-semibold">
+            Android Auto DEBUG
+          </div>
+          <div class="text-sm text-gray-400">
+            Simulazione MediaSession
+          </div>
+        </div>
+
+        <span
+          class="material-symbols text-2xl cursor-pointer"
+          @click="closeAndroidAutoDebug"
+        >
+          close
+        </span>
+      </div>
+
+      <div v-if="currentChapter">
+
+          <div class="text-xs text-gray-500 mt-2 space-y-1">
+            <div>Tempo assoluto: {{ currentTime.toFixed(2) }} s</div>
+            <div>Inizio capitolo: {{ Number(currentChapter.start).toFixed(2) }} s</div>
+            <div>Posizione capitolo: {{ Math.max(0, currentTime - currentChapter.start).toFixed(2) }} s</div>
+            <div>Durata capitolo: {{ Number(currentChapterDuration).toFixed(2) }} s</div>
+          </div>
+
+        <div class="text-base font-semibold">
+          {{ currentChapterTitle || 'Senza titolo' }}
+        </div>
+
+        <div class="text-sm text-gray-400 mt-1">
+          Capitolo {{ chapters.findIndex(c => c.id === currentChapter.id) + 1 }}
+          / {{ chapters.length }}
+        </div>
+
+        <div class="mt-5 h-3 bg-gray-700 rounded-full overflow-hidden">
+          <div
+            class="h-full bg-blue-500"
+            :style="{
+              width: `${Math.min(
+                100,
+                Math.max(
+                  0,
+                  ((currentTime - currentChapter.start) / currentChapterDuration) * 100
+                )
+              )}%`
+            }"
+          />
+        </div>
+
+        <div class="flex justify-between text-sm text-gray-400 mt-2">
+          <span>
+            {{ $secondsToTimestamp(Math.max(0, currentTime - currentChapter.start)) }}
+          </span>
+
+          <span>
+            {{ $secondsToTimestamp(currentChapterDuration) }}
+          </span>
+        </div>
+
+        <div class="flex items-center justify-center gap-8 mt-6">
+
+          <span
+            class="material-symbols text-4xl cursor-pointer"
+            @click="jumpChapterStart"
+          >
+            skip_previous
+          </span>
+
+          <span
+            class="material-symbols text-5xl cursor-pointer"
+            @click="playPauseClick"
+          >
+            {{ isPlaying ? 'pause_circle' : 'play_circle' }}
+          </span>
+
+          <span
+            class="material-symbols text-4xl cursor-pointer"
+            :class="{ 'text-opacity-30': !nextChapter }"
+            @click="jumpNextChapter"
+          >
+            skip_next
+          </span>
+
+        </div>
+
+        <div class="flex justify-center gap-4 mt-5">
+
+          <button
+            class="px-4 py-2 rounded bg-gray-700"
+            @click="jumpBackwards"
+          >
+            −{{ jumpBackwardsLabel }}
+          </button>
+
+          <button
+            class="px-4 py-2 rounded bg-gray-700"
+            @click="jumpForward"
+          >
+            +{{ jumpForwardLabel }}
+          </button>
+
+        </div>
+
+        <details class="w-full mt-5 rounded bg-gray-800">
+          <summary
+            class="w-full py-3 px-4 cursor-pointer select-none font-semibold"
+          >
+            Elenco capitoli
+          </summary>
+
+          <div
+            v-if="chapters.length"
+            class="max-h-64 overflow-y-auto border-t border-gray-700"
+          >
+            <button
+              v-for="(chapter, index) in chapters"
+              :key="chapter.id"
+              type="button"
+              class="w-full px-4 py-3 text-left border-b border-gray-700 last:border-b-0"
+              :class="{
+                'bg-blue-700':
+                  currentChapter && chapter.id === currentChapter.id,
+                'bg-gray-800':
+                  !currentChapter || chapter.id !== currentChapter.id
+              }"
+              @click.stop="selectChapter(chapter)"
+            >
+              <div class="font-semibold">
+                Capitolo {{ index + 1 }}/{{ chapters.length }}
+              </div>
+
+              <div class="text-sm text-gray-300 truncate">
+                {{ chapter.title || 'Senza titolo' }}
+              </div>
+
+              <div class="text-xs text-gray-500 mt-1">
+                {{ $secondsToTimestamp(Number(chapter.start)) }}
+                -
+                {{ $secondsToTimestamp(Number(chapter.end)) }}
+              </div>
+            </button>
+          </div>
+
+          <div
+            v-else
+            class="px-4 py-4 text-sm text-gray-400 border-t border-gray-700"
+          >
+            Nessun capitolo disponibile
+          </div>
+        </details>
+
+      </div>
+
+      <div v-else class="text-center text-gray-400 py-10">
+        Nessun capitolo corrente
+      </div>
+
+    </div>
+  </div>
+
   </div>
 </template>
 
@@ -155,6 +521,7 @@ export default {
       playbackSession: null,
       showChapterModal: false,
       showFullscreen: false,
+      showAndroidAutoDebug: false,
       totalDuration: 0,
       currentPlaybackRate: 1,
       currentTime: 0,
@@ -448,6 +815,104 @@ export default {
         this.showFullscreen = false
       }
     },
+toggleAndroidAutoDebug() {
+  this.showAndroidAutoDebug = true
+  this.showFullscreen = true
+},
+closeAndroidAutoDebug() {
+  this.showAndroidAutoDebug = false
+},
+    async onBookmarkDeleteRequested(payload) {
+      const libraryItemId =
+        payload?.libraryItemId || this.serverLibraryItemId
+
+      const time =
+        Math.floor(Number(payload?.time))
+
+      if (!libraryItemId || !Number.isFinite(time)) {
+        console.error(
+          'Invalid Android Auto bookmark delete request',
+          payload
+        )
+        return
+      }
+
+      try {
+        await this.$nativeHttp.delete(
+          `/api/me/item/${libraryItemId}/bookmark/${time}`
+        )
+
+        this.$store.commit(
+          'user/deleteBookmark',
+          {
+            libraryItemId,
+            time
+          }
+        )
+
+        this.$toast.success('Bookmark removed')
+      } catch (error) {
+        this.$toast.error(
+          this.$strings.ToastBookmarkRemoveFailed
+        )
+        console.error(error)
+      }
+    },
+
+    async onBookmarkRequested(payload) {
+      const libraryItemId =
+        payload?.libraryItemId || this.serverLibraryItemId
+
+      const time =
+        Math.floor(
+          Number(
+            payload?.time !== undefined
+              ? payload.time
+              : this.currentTime
+          )
+        )
+
+      if (!libraryItemId || !Number.isFinite(time)) {
+        console.error(
+          'Invalid Android Auto bookmark request',
+          payload
+        )
+        return
+      }
+
+      const existingBookmark =
+        this.bookmarks.find(
+          (bookmark) => Number(bookmark.time) === time
+        )
+
+      if (existingBookmark) {
+        this.$toast.success('Bookmark already exists')
+        return
+      }
+
+      const bookmark = {
+        title: `Android Auto - ${this.$formatDate(
+          Date.now(),
+          'MMM dd, yyyy HH:mm'
+        )}`,
+        time
+      }
+
+      try {
+        await this.$nativeHttp.post(
+          `/api/me/item/${libraryItemId}/bookmark`,
+          bookmark
+        )
+
+        this.$toast.success('Bookmark added')
+      } catch (error) {
+        this.$toast.error(
+          this.$strings.ToastBookmarkCreateFailed
+        )
+        console.error(error)
+      }
+    },
+
     async selectChapter(chapter) {
       await this.$hapticsImpact()
       this.seek(chapter.start)
@@ -580,20 +1045,26 @@ export default {
       ts.innerText = this.$secondsToTimestamp(currentTime)
     },
     timeupdate() {
-      if (!this.$refs.playedTrack) {
-        console.error('Invalid no played track ref')
-        return
-      }
       this.$emit('updateTime', this.currentTime)
 
+      // A native time update confirms that the seek completed.
+      // Clear the loading state even when the normal player UI is hidden,
+      // as happens while the Android Auto DEBUG panel is displayed.
       if (this.seekLoading) {
         this.seekLoading = false
+
         if (this.$refs.playedTrack) {
           this.$refs.playedTrack.classList.remove('bg-yellow-300')
           this.$refs.playedTrack.classList.add('bg-gray-200')
         }
       }
 
+      // The normal progress-bar refs do not exist in Android Auto DEBUG.
+      // The debug panel uses reactive values and needs no direct DOM update.
+      if (!this.$refs.playedTrack) {
+        return
+      }
+
       this.updateTimestamp()
       this.updateTrack()
     },
@@ -921,6 +1392,14 @@ export default {
       AbsAudioPlayer.addListener('onProgressSyncFailing', this.showProgressSyncIsFailing)
       AbsAudioPlayer.addListener('onProgressSyncSuccess', this.showProgressSyncSuccess)
       AbsAudioPlayer.addListener('onPlaybackSpeedChanged', this.onPlaybackSpeedChanged)
+      AbsAudioPlayer.addListener(
+        'onBookmarkRequested',
+        this.onBookmarkRequested
+      )
+      AbsAudioPlayer.addListener(
+        'onBookmarkDeleteRequested',
+        this.onBookmarkDeleteRequested
+      )
     },
     async screenOrientationChange() {
       if (this.isRefreshingUI) return

components/app/AudioPlayerContainer.vue

@@ -41,6 +41,15 @@ export default {
     }
   },
   mixins: [CellularPermissionHelpers],
+  watch: {
+    bookmarks: {
+      deep: true,
+      immediate: true,
+      handler() {
+        this.syncAndroidAutoBookmarks()
+      }
+    }
+  },
   computed: {
     bookmarks() {
       if (!this.serverLibraryItemId) return []
@@ -54,6 +63,32 @@ export default {
     }
   },
   methods: {
+    async syncAndroidAutoBookmarks() {
+      const payload =
+        this.bookmarks.map((bookmark) => ({
+          title:
+            bookmark.title ||
+            this.$formatDate(
+              Number(bookmark.time) * 1000,
+              'MMM dd, yyyy HH:mm'
+            ),
+          timeSeconds: Math.floor(
+            Number(bookmark.time)
+          )
+        }))
+
+      try {
+        await AbsAudioPlayer.setAndroidAutoBookmarks({
+          value: JSON.stringify(payload)
+        })
+      } catch (error) {
+        console.error(
+          'Failed to sync Android Auto bookmarks',
+          error
+        )
+      }
+    },
+
     showBookmarks() {
       this.showBookmarksModal = true
     },