Added CKSubscription to receive changes in iCloud as push notifications

insidehand · Nov 21, 2016 · f1d7384 · f1d7384
1 parent 901c952
commit f1d7384
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Showing 3 changed files with 40 additions and 6 deletions.
diff --git a/Blink/AppDelegate.m b/Blink/AppDelegate.m
@@ -30,6 +30,9 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 #import "AppDelegate.h"
+#import "BKiCloudSyncHandler.h"
+@import UserNotifications;
+@import CloudKit;
 
 #if HOCKEYSDK
 @import HockeySDK;
@@ -56,6 +59,10 @@ - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(
   [[BITHockeyManager sharedHockeyManager].authenticator authenticateInstallation]; // This line is obsolete in the crash only build
 #endif
 
+  [[UNUserNotificationCenter currentNotificationCenter]requestAuthorizationWithOptions:(UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) {
+
+  }];
+  [application registerForRemoteNotifications];
   return YES;
 }
 
@@ -86,4 +93,7 @@ - (void)applicationWillTerminate:(UIApplication *)application
   // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
 }
 
+- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler{
+  [[BKiCloudSyncHandler sharedHandler]fetchFromiCloud];
+}
 @end
diff --git a/Blink/Info.plist b/Blink/Info.plist
@@ -24,6 +24,11 @@
 	<string>40</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>fetch</string>
+		<string>remote-notification</string>
+	</array>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIMainStoryboardFile</key>

diff --git a/Settings/Network/BKiCloudSyncHandler.m b/Settings/Network/BKiCloudSyncHandler.m
@@ -42,15 +42,34 @@ + (id)sharedHandler{
 - (instancetype)init{
   self = [super init];
   if(self){
-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(checkForReachability:) name:kReachabilityChangedNotification object:nil];
-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(checkForReachability:) name:UIApplicationDidBecomeActiveNotification object:nil];
-    _internetReachable = [Reachability reachabilityForInternetConnection];
-    [_internetReachable startNotifier];
-    [self loadSyncItems];
+    [self initSyncHandler];
   }
   return self;
 }
 
+- (void)initSyncHandler{
+  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(checkForReachability:) name:kReachabilityChangedNotification object:nil];
+  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(checkForReachability:) name:UIApplicationDidBecomeActiveNotification object:nil];
+  _internetReachable = [Reachability reachabilityForInternetConnection];
+  [_internetReachable startNotifier];
+  [self loadSyncItems];
+  CKDatabase *database = [[CKContainer containerWithIdentifier:@"iCloud.com.carloscabanero.blinkshell"]privateCloudDatabase];
+  CKRecordZone *zone = [[CKRecordZone alloc]initWithZoneName:@"DefaultZone"];
+  [database saveRecordZone:zone
+         completionHandler:^(CKRecordZone * _Nullable zone, NSError * _Nullable error) {
+
+         }];
+  NSPredicate *predicate = [NSPredicate predicateWithValue:YES];
+  CKQuerySubscription *subscripton = [[CKQuerySubscription alloc]initWithRecordType:@"BKHost" predicate:predicate options:(CKQuerySubscriptionOptionsFiresOnRecordCreation|CKQuerySubscriptionOptionsFiresOnRecordUpdate|CKQuerySubscriptionOptionsFiresOnRecordDeletion)];
+  CKNotificationInfo *info = [[CKNotificationInfo alloc]init];
+  info.alertBody = @"Host update";
+  subscripton.notificationInfo = info;
+
+  [database saveSubscription:subscripton completionHandler:^(CKSubscription * _Nullable subscription, NSError * _Nullable error) {
+
+  }];
+}
+
 - (void)loadSyncItems
 {
   if (DocumentsDirectory == nil) {
@@ -75,7 +94,6 @@ - (void)checkForReachability:(NSNotification*)notification{
   if(remoteHostStatus == NotReachable) {
 
   }else{
-    [self deleteAllItems];
     [self fetchFromiCloud];
   }
 }
@@ -95,6 +113,7 @@ - (void)deleteAllItems{
 }
 
 - (void)fetchFromiCloud{
+  [self deleteAllItems];
   CKDatabase *database = [[CKContainer containerWithIdentifier:@"iCloud.com.carloscabanero.blinkshell"]privateCloudDatabase];
   CKQuery *hostQuery = [[CKQuery alloc]initWithRecordType:@"BKHost" predicate:[NSPredicate predicateWithValue:YES]];
   [database performQuery:hostQuery inZoneWithID:nil completionHandler:^(NSArray<CKRecord *> * _Nullable results, NSError * _Nullable error) {