Removed the again showing the notification if user cancels it, and improved the setting of foreground notification when all other downloads are paused.

core/src/main/java/org/kiwix/kiwixmobile/core/downloader/downloadManager/DownloadMonitorService.kt

@@ -118,7 +118,17 @@ class DownloadMonitorService : Service() {
             it.status == Status.QUEUED ||
             it.status == Status.DOWNLOADING ||
             it.isPaused()
-        }?.let {
+        }?.let(::setForegroundNotificationForDownload) ?: kotlin.run {
+          stopForegroundServiceForDownloads()
+          // Cancel the last ongoing notification after detaching it from
+          // the foreground service if no active downloads are found.
+          downloadId?.let(::cancelNotificationForId)
+        }
+      }
+    }
+  }
+
+  private fun setForegroundNotificationForDownload(it: Download) {
     val notificationBuilder =
       fetchDownloadNotificationManager.getNotificationBuilder(it.id, it.id)
     var foreGroundServiceNotification = notificationBuilder.build()
@@ -131,14 +141,6 @@ class DownloadMonitorService : Service() {
         fetchDownloadNotificationManager.getCancelNotification(fetch, it, notificationBuilder)
     }
     startForeground(it.id, foreGroundServiceNotification)
-        } ?: kotlin.run {
-          stopForegroundServiceForDownloads()
-          // Cancel the last ongoing notification after detaching it from
-          // the foreground service if no active downloads are found.
-          downloadId?.let(::cancelNotificationForId)
-        }
-      }
-    }
   }
 
   private fun cancelNotificationForId(downloadId: Int) {
@@ -226,7 +228,9 @@ class DownloadMonitorService : Service() {
         // If someone pause the Download then post a notification since fetch removes the
         // notification for ongoing download when pause so we needs to show our custom notification.
         if (download.isPaused()) {
-          fetchDownloadNotificationManager.showDownloadPauseNotification(fetch, download)
+          fetchDownloadNotificationManager.showDownloadPauseNotification(fetch, download).also {
+            setForeGroundServiceNotificationIfNoActiveDownloads(fetch, download)
+          }
         }
         if (shouldSetForegroundNotification) {
           setForegroundNotification(download.id)
@@ -242,6 +246,24 @@ class DownloadMonitorService : Service() {
     }
   }
 
+  private fun setForeGroundServiceNotificationIfNoActiveDownloads(
+    fetch: Fetch,
+    download: Download
+  ) {
+    updater.onNext {
+      // Check if there are any ongoing downloads.
+      // If the list is empty, it means no other downloads are running,
+      // so we need to promote this download to a foreground service.
+      fetch.getDownloadsWithStatus(
+        listOf(Status.NONE, Status.ADDED, Status.QUEUED, Status.DOWNLOADING)
+      ) { activeDownloads ->
+        if (activeDownloads.isEmpty()) {
+          setForegroundNotificationForDownload(download)
+        }
+      }
+    }
+  }
+
   @Suppress("MagicNumber")
   private fun showDownloadCompletedNotification(download: Download) {
     downloadNotificationChannel()

core/src/main/java/org/kiwix/kiwixmobile/core/downloader/downloadManager/FetchDownloadNotificationManager.kt

@@ -26,7 +26,6 @@ import android.app.PendingIntent
 import android.app.PendingIntent.FLAG_IMMUTABLE
 import android.app.PendingIntent.FLAG_UPDATE_CURRENT
 import android.app.PendingIntent.getActivity
-import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
@@ -40,7 +39,6 @@ import com.tonyodev.fetch2.ACTION_TYPE_INVALID
 import com.tonyodev.fetch2.ACTION_TYPE_PAUSE
 import com.tonyodev.fetch2.ACTION_TYPE_RESUME
 import com.tonyodev.fetch2.ACTION_TYPE_RETRY
-import com.tonyodev.fetch2.DOWNLOAD_ID_INVALID
 import com.tonyodev.fetch2.DefaultFetchNotificationManager
 import com.tonyodev.fetch2.Download
 import com.tonyodev.fetch2.DownloadNotification
@@ -81,28 +79,6 @@ class FetchDownloadNotificationManager @Inject constructor(
     context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
   }
 
-  private val notificationDismissAction = "NOTIFICATION_DISMISS_ACTION"
-
-  init {
-    registerDismissNotificationBroadcastReceiver()
-  }
-
-  @SuppressLint("UnspecifiedRegisterReceiverFlag")
-  private fun registerDismissNotificationBroadcastReceiver() {
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-      context.registerReceiver(
-        notificationDismissBroadcastReceiver,
-        IntentFilter(notificationDismissAction),
-        Context.RECEIVER_EXPORTED
-      )
-    } else {
-      context.registerReceiver(
-        notificationDismissBroadcastReceiver,
-        IntentFilter(notificationDismissAction)
-      )
-    }
-  }
-
   override fun getFetchInstanceForNamespace(namespace: String): Fetch = Fetch.getDefaultInstance()
 
   override fun registerBroadcastReceiver() {
@@ -271,44 +247,9 @@ class FetchDownloadNotificationManager @Inject constructor(
         context.getString(R.string.notification_resume_button_text),
         getActionPendingIntent(fetch, download, DownloadNotification.ActionType.RESUME)
       )
-      // Set the delete intent so that we can know that user dismiss the paused notification.
-      .setDeleteIntent(getDeletePendingIntent(download, fetch))
       .build()
   }
 
-  /**
-   * This pending intent will use in the "Pause" notifications when a user removes the paused
-   * notification this pending intent will trigger and will re-enable the paused notification.
-   * So that user can see that a download is paused and he can perform the necessary actions.
-   */
-  private fun getDeletePendingIntent(download: Download, fetch: Fetch): PendingIntent {
-    val intent = Intent(notificationDismissAction).apply {
-      putExtra(EXTRA_DOWNLOAD_ID, download.id)
-      putExtra(EXTRA_NAMESPACE, fetch.namespace)
-    }
-    return PendingIntent.getBroadcast(
-      context,
-      download.id,
-      intent,
-      PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
-    )
-  }
-
-  private val notificationDismissBroadcastReceiver: BroadcastReceiver
-    get() = object : BroadcastReceiver() {
-      override fun onReceive(context: Context?, intent: Intent?) {
-        val namespace = intent?.getStringExtra(EXTRA_NAMESPACE) ?: return
-        val downloadId = intent.getIntExtra(EXTRA_DOWNLOAD_ID, DOWNLOAD_ID_INVALID)
-        if (namespace.isEmpty() || downloadId == DOWNLOAD_ID_INVALID) return
-        val fetch = getFetchInstanceForNamespace(namespace)
-        if (!fetch.isClosed) {
-          fetch.getDownload(downloadId) { download ->
-            download?.takeIf(Download::isPaused)?.let { showDownloadPauseNotification(fetch, it) }
-          }
-        }
-      }
-    }
-
   private fun getActionPendingIntent(
     fetch: Fetch,
     download: Download,