feat: add 'Continue watching' section to home tab

app/src/main/java/com/github/libretube/db/DatabaseHelper.kt

@@ -1,5 +1,6 @@
 package com.github.libretube.db
 
+import com.github.libretube.api.obj.StreamItem
 import com.github.libretube.api.obj.Streams
 import com.github.libretube.constants.PreferenceKeys
 import com.github.libretube.db.DatabaseHolder.Database
@@ -50,4 +51,17 @@ object DatabaseHelper {
             searchHistory.removeFirst()
         }
     }
+
+    suspend fun filterUnwatched(streams: List<StreamItem>): List<StreamItem> {
+        return streams.filter {
+            withContext(Dispatchers.IO) {
+                val historyItem = Database.watchPositionDao()
+                    .findById(it.url.orEmpty().toID()) ?: return@withContext true
+                val progress = historyItem.position / 1000
+                val duration = it.duration ?: 0
+                // show video only in feed when watched less than 90%
+                progress < 0.9f * duration
+            }
+        }
+    }
 }

app/src/main/java/com/github/libretube/db/obj/WatchHistoryItem.kt

@@ -3,6 +3,8 @@ package com.github.libretube.db.obj
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.PrimaryKey
+import com.github.libretube.api.obj.StreamItem
+import com.github.libretube.extensions.toMillis
 import kotlinx.datetime.LocalDate
 import kotlinx.serialization.Serializable
 
@@ -17,4 +19,16 @@ data class WatchHistoryItem(
     @ColumnInfo var uploaderAvatar: String? = null,
     @ColumnInfo var thumbnailUrl: String? = null,
     @ColumnInfo val duration: Long? = null
-)
+) {
+   fun toStreamItem() = StreamItem(
+       url = videoId,
+       type = "stream",
+       title = title,
+       thumbnail = thumbnailUrl,
+       uploaderName = uploader,
+       uploaded = uploadDate?.toMillis(),
+       uploaderAvatar = uploaderAvatar,
+       uploaderUrl = uploaderUrl,
+       duration = duration
+   )
+}

app/src/main/java/com/github/libretube/extensions/LocalDate.kt

@@ -0,0 +1,7 @@
+package com.github.libretube.extensions
+
+import kotlinx.datetime.LocalDate
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.atStartOfDayIn
+
+fun LocalDate.toMillis() = this.atStartOfDayIn(TimeZone.UTC).toEpochMilliseconds()

app/src/main/java/com/github/libretube/ui/fragments/HomeFragment.kt

@@ -21,8 +21,10 @@ import com.github.libretube.api.RetrofitInstance
 import com.github.libretube.api.SubscriptionHelper
 import com.github.libretube.constants.PreferenceKeys
 import com.github.libretube.databinding.FragmentHomeBinding
+import com.github.libretube.db.DatabaseHelper
 import com.github.libretube.db.DatabaseHolder
 import com.github.libretube.helpers.LocaleHelper
+import com.github.libretube.helpers.PlayerHelper
 import com.github.libretube.helpers.PreferenceHelper
 import com.github.libretube.ui.adapters.PlaylistBookmarkAdapter
 import com.github.libretube.ui.adapters.PlaylistsAdapter
@@ -56,6 +58,10 @@ class HomeFragment : Fragment() {
             findNavController().navigate(R.id.subscriptionsFragment)
         }
 
+        binding.watchingTV.setOnClickListener {
+            findNavController().navigate(R.id.watchHistoryFragment)
+        }
+
         binding.trendingTV.setOnClickListener {
             findNavController().navigate(R.id.trendsFragment)
         }
@@ -90,6 +96,7 @@ class HomeFragment : Fragment() {
                     .getStringSet(PreferenceKeys.HOME_TAB_CONTENT, defaultItems.toSet())
                 awaitAll(
                     async { if (visibleItems.contains(TRENDING)) loadTrending() },
+                    async { if (visibleItems.contains(WATCHING)) loadVideosToContinueWatching() },
                     async { if (visibleItems.contains(BOOKMARKS)) loadBookmarks() },
                     async { if (visibleItems.contains(FEATURED)) loadFeed() },
                     async { if (visibleItems.contains(PLAYLISTS)) loadPlaylists() }
@@ -200,6 +207,30 @@ class HomeFragment : Fragment() {
         })
     }
 
+    private suspend fun loadVideosToContinueWatching() {
+        if (!PlayerHelper.watchHistoryEnabled) return
+
+        val videos = withContext(Dispatchers.IO) {
+            DatabaseHolder.Database.watchHistoryDao().getAll()
+        }
+        val unwatchedVideos = DatabaseHelper.filterUnwatched(videos.map { it.toStreamItem() })
+            .reversed()
+            .take(20)
+        if (unwatchedVideos.isEmpty()) return
+        val binding = _binding ?: return
+
+        makeVisible(binding.watchingRV, binding.watchingTV)
+        binding.watchingRV.layoutManager = LinearLayoutManager(
+            context,
+            LinearLayoutManager.HORIZONTAL,
+            false
+        )
+        binding.watchingRV.adapter = VideosAdapter(
+            unwatchedVideos.toMutableList(),
+            forceMode = VideosAdapter.Companion.ForceMode.HOME
+        )
+    }
+
     private fun makeVisible(vararg views: View) {
         views.forEach {
             it.isVisible = true
@@ -213,6 +244,7 @@ class HomeFragment : Fragment() {
     companion object {
         // The values of the preference entries for the home tab content
         private const val FEATURED = "featured"
+        private const val WATCHING = "watching"
         private const val TRENDING = "trending"
         private const val BOOKMARKS = "bookmarks"
         private const val PLAYLISTS = "playlists"

app/src/main/java/com/github/libretube/ui/fragments/SubscriptionsFragment.kt

@@ -20,6 +20,7 @@ import com.github.libretube.R
 import com.github.libretube.api.obj.StreamItem
 import com.github.libretube.constants.PreferenceKeys
 import com.github.libretube.databinding.FragmentSubscriptionsBinding
+import com.github.libretube.db.DatabaseHelper
 import com.github.libretube.db.DatabaseHolder
 import com.github.libretube.db.obj.SubscriptionGroup
 import com.github.libretube.extensions.dpToPx
@@ -33,7 +34,6 @@ import com.github.libretube.ui.models.SubscriptionsViewModel
 import com.github.libretube.ui.sheets.BaseBottomSheet
 import com.github.libretube.ui.sheets.ChannelGroupsSheet
 import com.google.android.material.chip.Chip
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
 
@@ -243,7 +243,7 @@ class SubscriptionsFragment : Fragment() {
                     else -> throw IllegalArgumentException()
                 }
             }.let { streams ->
-                runBlocking {
+
                 if (!PreferenceHelper.getBoolean(
                         PreferenceKeys.HIDE_WATCHED_FROM_FEED,
                         false
@@ -251,7 +251,8 @@ class SubscriptionsFragment : Fragment() {
                 ) {
                     streams
                 } else {
-                        removeWatchVideosFromFeed(streams)
+                    runBlocking {
+                        DatabaseHelper.filterUnwatched(streams)
                     }
                 }
             }
@@ -294,19 +295,6 @@ class SubscriptionsFragment : Fragment() {
         PreferenceHelper.updateLastFeedWatchedTime()
     }
 
-    private fun removeWatchVideosFromFeed(streams: List<StreamItem>): List<StreamItem> {
-        return streams.filter {
-            runBlocking(Dispatchers.IO) {
-                val historyItem = DatabaseHolder.Database.watchPositionDao()
-                    .findById(it.url.orEmpty().toID()) ?: return@runBlocking true
-                val progress = historyItem.position / 1000
-                val duration = it.duration ?: 0
-                // show video only in feed when watched less than 1/4
-                progress < 0.9f * duration
-            }
-        }
-    }
-
     private fun showSubscriptions() {
         if (viewModel.subscriptions.value == null) return
 

app/src/main/res/layout/fragment_home.xml

@@ -39,6 +39,19 @@
                     android:nestedScrollingEnabled="false"
                     android:visibility="gone" />
 
+                <TextView
+                    android:id="@+id/watchingTV"
+                    style="@style/HomeCategoryTitle"
+                    android:text="@string/continue_watching" />
+
+                <androidx.recyclerview.widget.RecyclerView
+                    android:id="@+id/watchingRV"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginHorizontal="10dp"
+                    android:nestedScrollingEnabled="false"
+                    android:visibility="gone" />
+
                 <TextView
                     android:id="@+id/trendingTV"
                     style="@style/HomeCategoryTitle"

app/src/main/res/values/array.xml

@@ -427,6 +427,7 @@
 
     <string-array name="homeTabItems">
         <item>@string/featured</item>
+        <item>@string/continue_watching</item>
         <item>@string/trending</item>
         <item>@string/bookmarks</item>
         <item>@string/playlists</item>
@@ -434,6 +435,7 @@
 
     <string-array name="homeTabItemsValues">
         <item>featured</item>
+        <item>watching</item>
         <item>trending</item>
         <item>bookmarks</item>
         <item>playlists</item>

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

@@ -452,6 +452,7 @@
     <string name="descriptive_audio_track">descriptive</string>
     <string name="default_or_unknown_audio_track">default or unknown</string>
     <string name="unknown_or_no_audio">unknown or no audio</string>
+    <string name="continue_watching">Continue watching</string>
 
     <!-- Notification channel strings -->
     <string name="download_channel_name">Download Service</string>