Avoid starting restore job if already running

We already check in the settings screen where it's triggered, but who knows.
Also addressing some errors for method calls that require SDK 26+ (but don't
fail the build, somehow?).

app/src/main/java/eu/kanade/domain/track/service/DelayedTrackingUpdateJob.kt

@@ -17,8 +17,7 @@ import tachiyomi.core.util.system.logcat
 import tachiyomi.domain.track.interactor.GetTracks
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
-import kotlin.time.Duration.Companion.minutes
-import kotlin.time.toJavaDuration
+import java.util.concurrent.TimeUnit
 
 class DelayedTrackingUpdateJob(private val context: Context, workerParams: WorkerParameters) :
     CoroutineWorker(context, workerParams) {
@@ -63,7 +62,7 @@ class DelayedTrackingUpdateJob(private val context: Context, workerParams: Worke
 
             val request = OneTimeWorkRequestBuilder<DelayedTrackingUpdateJob>()
                 .setConstraints(constraints)
-                .setBackoffCriteria(BackoffPolicy.EXPONENTIAL, 5.minutes.toJavaDuration())
+                .setBackoffCriteria(BackoffPolicy.EXPONENTIAL, 5, TimeUnit.MINUTES)
                 .addTag(TAG)
                 .build()
 

app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateJob.kt

@@ -27,8 +27,6 @@ import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import java.time.Instant
 import java.util.concurrent.TimeUnit
-import kotlin.time.Duration.Companion.minutes
-import kotlin.time.toJavaDuration
 
 class BackupCreateJob(private val context: Context, workerParams: WorkerParameters) :
     CoroutineWorker(context, workerParams) {
@@ -97,7 +95,7 @@ class BackupCreateJob(private val context: Context, workerParams: WorkerParamete
                     10,
                     TimeUnit.MINUTES,
                 )
-                    .setBackoffCriteria(BackoffPolicy.EXPONENTIAL, 10.minutes.toJavaDuration())
+                    .setBackoffCriteria(BackoffPolicy.EXPONENTIAL, 10, TimeUnit.MINUTES)
                     .addTag(TAG_AUTO)
                     .setConstraints(constraints)
                     .setInputData(workDataOf(IS_AUTO_BACKUP_KEY to true))

app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreJob.kt

@@ -26,6 +26,8 @@ class BackupRestoreJob(private val context: Context, workerParams: WorkerParamet
     private val notifier = BackupNotifier(context)
 
     override suspend fun doWork(): Result {
+        if (isRunning(context)) return Result.failure()
+
         val uri = inputData.getString(LOCATION_URI_KEY)?.toUri()
             ?: return Result.failure()
         val sync = inputData.getBoolean(SYNC_KEY, false)