feat: support for importing temporary playlists from YouTube

app/src/main/AndroidManifest.xml

@@ -306,6 +306,8 @@
                 <data android:pathPrefix="/playlist" />
                 <!-- search prefix -->
                 <data android:pathPrefix="/results" />
+                <!-- temporary playlist prefix -->
+                <data android:pathPrefix="/watch_videos" />
             </intent-filter>
 
             <!-- Support being detected as media player -->

app/src/main/java/com/github/libretube/constants/IntentData.kt

@@ -5,6 +5,7 @@
     const val playerData = "playerData"
     const val id = "id"
     const val videoId = "videoId"
+    const val videoIds = "videoIds"
     const val channelId = "channelId"
     const val channelName = "channelName"
     const val playlistId = "playlistId"

app/src/main/java/com/github/libretube/ui/activities/MainActivity.kt

@@ -41,6 +41,7 @@
 import com.github.libretube.helpers.WindowHelper
 import com.github.libretube.ui.base.BaseActivity
 import com.github.libretube.ui.dialogs.ErrorDialog
+import com.github.libretube.ui.dialogs.ImportTempPlaylistDialog
 import com.github.libretube.ui.fragments.AudioPlayerFragment
 import com.github.libretube.ui.fragments.DownloadsFragment
 import com.github.libretube.ui.fragments.PlayerFragment
@@ -426,6 +427,16 @@
         intent?.getStringExtra(IntentData.playlistId)?.let {
             navController.navigate(NavDirections.openPlaylist(playlistId = it))
         }
+        intent?.getStringArrayExtra(IntentData.videoIds)?.let {
+            ImportTempPlaylistDialog()
+                .apply {
+                    arguments = bundleOf(
+                        IntentData.playlistName to intent?.getStringExtra(IntentData.playlistName),
+                        IntentData.videoIds to it
+                    )
+                }
+                .show(supportFragmentManager, null)
+        }
         intent?.getStringExtra(IntentData.videoId)?.let {
             // the bottom navigation bar has to be created before opening the video
             // otherwise the player layout measures aren't calculated properly

app/src/main/java/com/github/libretube/ui/activities/RouterActivity.kt

@@ -44,6 +44,11 @@ class RouterActivity : BaseActivity() {
             lastSegment == "playlist" -> {
                 putExtra(IntentData.playlistId, uri.getQueryParameter("list"))
             }
+            lastSegment == "watch_videos" -> {
+                putExtra(IntentData.playlistName, uri.getQueryParameter("title"))
+                val videoIds = uri.getQueryParameter("video_ids")?.split(",")
+                putExtra(IntentData.videoIds, videoIds?.toTypedArray())
+            }
             else -> {
                 val id = if (lastSegment == "watch") uri.getQueryParameter("v") else lastSegment
                 putExtra(IntentData.videoId, id)

app/src/main/java/com/github/libretube/ui/dialogs/ImportTempPlaylistDialog.kt

@@ -0,0 +1,55 @@
+package com.github.libretube.ui.dialogs
+
+import android.app.Dialog
+import android.os.Bundle
+import android.util.Log
+import androidx.fragment.app.DialogFragment
+import com.github.libretube.R
+import com.github.libretube.api.PlaylistsHelper
+import com.github.libretube.constants.IntentData
+import com.github.libretube.extensions.TAG
+import com.github.libretube.extensions.toastFromMainDispatcher
+import com.github.libretube.obj.PipedImportPlaylist
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import java.util.Date
+
+class ImportTempPlaylistDialog : DialogFragment() {
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        val title = arguments?.getString(IntentData.playlistName)
+            ?.takeIf { it.isNotEmpty() }
+            ?: Date().toString()
+        val videoIds = arguments?.getStringArray(IntentData.videoIds).orEmpty()
+
+        return MaterialAlertDialogBuilder(requireContext())
+            .setTitle(R.string.import_temp_playlist)
+            .setMessage(
+                requireContext()
+                    .getString(R.string.import_temp_playlist_summary, title, videoIds.size)
+            )
+            .setNegativeButton(R.string.cancel, null)
+            .setPositiveButton(R.string.okay) { _, _ ->
+                val context = requireContext().applicationContext
+
+                CoroutineScope(Dispatchers.IO).launch {
+                    try {
+                        val playlist = PipedImportPlaylist(
+                            name = title,
+                            videos = videoIds.toList()
+                        )
+
+                        PlaylistsHelper.importPlaylists(listOf(playlist))
+                        context.toastFromMainDispatcher(R.string.playlistCreated)
+                    } catch (e: Exception) {
+                        Log.e(TAG(), e.toString())
+                        e.localizedMessage?.let {
+                            context.toastFromMainDispatcher(it)
+                        }
+                    }
+                }
+            }
+            .create()
+    }
+}

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

@@ -546,4 +546,6 @@
     <string name="tooltip_create_playlist">Create playlist</string>
     <string name="tooltip_scroll_to_top">Scroll to top</string>
     <string name="also_clear_watch_positions">Also clear watch positions</string>
+    <string name="import_temp_playlist">Import temporary playlist?</string>
+    <string name="import_temp_playlist_summary">Do you want to create a new playlist named \'%1$s\'? The playlist will contain %2$d videos.</string>
 </resources>