From 895191814eef0ddb0d4d8a0c25154b1c993bc975 Mon Sep 17 00:00:00 2001
From: NerdNumber9 <nerd.number9@yandex.com>
Date: Sat, 20 Apr 2019 14:01:18 -0400
Subject: [PATCH] Fix favorites sync and backup/restore crashing on older
 devices

---
 .../kanade/tachiyomi/data/backup/BackupRestoreService.kt | 9 +++++++--
 app/src/main/java/exh/eh/EHentaiUpdateWorker.kt          | 1 +
 app/src/main/java/exh/favorites/FavoritesSyncHelper.kt   | 9 +++++++--
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
index 762f2b1f2..9f202c906 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
@@ -4,6 +4,7 @@ import android.app.Service
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
+import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
 import com.elvishew.xlog.XLog
@@ -180,13 +181,17 @@ class BackupRestoreService : Service() {
         subscription = Observable.using(
                 {
                     // Pause auto-gallery-update during restore
-                    EHentaiUpdateWorker.cancelBackground(this)
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                        EHentaiUpdateWorker.cancelBackground(this)
+                    }
                     db.lowLevel().beginTransaction()
                 },
                 { getRestoreObservable(uri).doOnNext { db.lowLevel().setTransactionSuccessful() } },
                 {
                     // Resume auto-gallery-update
-                    EHentaiUpdateWorker.scheduleBackground(this)
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                        EHentaiUpdateWorker.scheduleBackground(this)
+                    }
                     executor.execute { db.lowLevel().endTransaction() }
                 })
                 .doAfterTerminate { stopSelf(startId) }
diff --git a/app/src/main/java/exh/eh/EHentaiUpdateWorker.kt b/app/src/main/java/exh/eh/EHentaiUpdateWorker.kt
index e611ef8fb..d441d7053 100644
--- a/app/src/main/java/exh/eh/EHentaiUpdateWorker.kt
+++ b/app/src/main/java/exh/eh/EHentaiUpdateWorker.kt
@@ -249,6 +249,7 @@ class EHentaiUpdateWorker: JobService(), CoroutineScope {
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
     companion object {
         private const val MAX_UPDATE_FAILURES = 5
 
diff --git a/app/src/main/java/exh/favorites/FavoritesSyncHelper.kt b/app/src/main/java/exh/favorites/FavoritesSyncHelper.kt
index e4494430a..1da85f857 100644
--- a/app/src/main/java/exh/favorites/FavoritesSyncHelper.kt
+++ b/app/src/main/java/exh/favorites/FavoritesSyncHelper.kt
@@ -2,6 +2,7 @@ package exh.favorites
 
 import android.content.Context
 import android.net.wifi.WifiManager
+import android.os.Build
 import android.os.PowerManager
 import com.elvishew.xlog.XLog
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
@@ -114,7 +115,9 @@ class FavoritesSyncHelper(val context: Context) {
             }
 
             // Do not update galleries while syncing favorites
-            EHentaiUpdateWorker.cancelBackground(context)
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                EHentaiUpdateWorker.cancelBackground(context)
+            }
 
             storage.getRealm().use { realm ->
                 realm.trans {
@@ -167,7 +170,9 @@ class FavoritesSyncHelper(val context: Context) {
             }
 
             // Update galleries again!
-            EHentaiUpdateWorker.scheduleBackground(context)
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+                EHentaiUpdateWorker.scheduleBackground(context)
+            }
         }
 
         if(errorList.isEmpty())