Merge branch 'charlesmchen/oneSystemContactsFetchAtATime'

Signal/src/AppDelegate.m

@@ -523,7 +523,7 @@ static NSString *const kURLHostVerifyPrefix             = @"verify";
         // Avoid blocking app launch by putting all further possible DB access in async block
         dispatch_async(dispatch_get_main_queue(), ^{
             [TSSocketManager requestSocketOpen];
-            [[Environment getCurrent].contactsManager fetchSystemContactsIfAlreadyAuthorized];
+            [[Environment getCurrent].contactsManager fetchSystemContactsOnceIfAlreadyAuthorized];
             // This will fetch new messages, if we're using domain fronting.
             [[PushManager sharedManager] applicationDidBecomeActive];
 

Signal/src/ViewControllers/NewContactThreadViewController.m

@@ -146,7 +146,7 @@ NS_ASSUME_NONNULL_BEGIN
 {
     OWSAssert([NSThread isMainThread]);
 
-    [self.contactsViewHelper.contactsManager fetchSystemContactsIfAlreadyAuthorizedAndIgnoreDebounce];
+    [self.contactsViewHelper.contactsManager fetchSystemContactsIfAlreadyAuthorizedAndAlwaysNotify];
 
     [refreshControl endRefreshing];
 }

Signal/src/contact/OWSContactsManager.h

@@ -71,8 +71,10 @@ extern NSString *const OWSContactsManagerSignalAccountsDidChangeNotification;
 
 // Ensure's the app has the latest contacts, but won't prompt the user for contact
 // access if they haven't granted it.
-- (void)fetchSystemContactsIfAlreadyAuthorized;
-- (void)fetchSystemContactsIfAlreadyAuthorizedAndIgnoreDebounce;
+- (void)fetchSystemContactsOnceIfAlreadyAuthorized;
+// This variant will fetch system contacts if contact access has already been granted,
+// but not prompt for contact access. Also, it will always fire a notification.
+- (void)fetchSystemContactsIfAlreadyAuthorizedAndAlwaysNotify;
 
 #pragma mark - Util
 

Signal/src/contact/OWSContactsManager.m

@@ -93,15 +93,14 @@ NSString *const kTSStorageManager_lastKnownContactRecipientIds = @"lastKnownCont
     [self.systemContactsFetcher requestOnceWithCompletion:completion];
 }
 
-
-- (void)fetchSystemContactsIfAlreadyAuthorized
+- (void)fetchSystemContactsOnceIfAlreadyAuthorized
 {
-    [self.systemContactsFetcher fetchIfAlreadyAuthorizedWithIgnoreDebounce:NO];
+    [self.systemContactsFetcher fetchOnceIfAlreadyAuthorized];
 }
 
-- (void)fetchSystemContactsIfAlreadyAuthorizedAndIgnoreDebounce
+- (void)fetchSystemContactsIfAlreadyAuthorizedAndAlwaysNotify
 {
-    [self.systemContactsFetcher fetchIfAlreadyAuthorizedWithIgnoreDebounce:YES];
+    [self.systemContactsFetcher fetchIfAlreadyAuthorizedAndAlwaysNotify];
 }
 
 - (BOOL)isSystemContactsAuthorized

Signal/src/contact/SystemContactsFetcher.swift

@@ -361,7 +361,7 @@ class SystemContactsFetcher: NSObject {
         hasSetupObservation = true
         self.contactStoreAdapter.startObservingChanges { [weak self] in
             DispatchQueue.main.async {
-                self?.updateContacts(completion: nil)
+                self?.updateContacts(completion: nil, alwaysNotify: false)
             }
         }
     }
@@ -380,7 +380,6 @@ class SystemContactsFetcher: NSObject {
             completion?(nil)
             return
         }
-        systemContactsHaveBeenRequestedAtLeastOnce = true
         setupObservationIfNecessary()
 
         switch authorizationStatus {
@@ -417,16 +416,28 @@ class SystemContactsFetcher: NSObject {
         }
     }
 
-    public func fetchIfAlreadyAuthorized(ignoreDebounce: Bool = false) {
+    public func fetchOnceIfAlreadyAuthorized() {
+        AssertIsOnMainThread()
+        guard authorizationStatus == .authorized else {
+            return
+        }
+        guard !systemContactsHaveBeenRequestedAtLeastOnce else {
+            return
+        }
+
+        updateContacts(completion: nil, alwaysNotify:false)
+    }
+
+    public func fetchIfAlreadyAuthorizedAndAlwaysNotify() {
         AssertIsOnMainThread()
         guard authorizationStatus == .authorized else {
             return
         }
 
-        updateContacts(completion: nil, ignoreDebounce:ignoreDebounce)
+        updateContacts(completion: nil, alwaysNotify:true)
     }
 
-    private func updateContacts(completion: ((Error?) -> Void)?, ignoreDebounce: Bool = false) {
+    private func updateContacts(completion: ((Error?) -> Void)?, alwaysNotify: Bool = false) {
         AssertIsOnMainThread()
 
         systemContactsHaveBeenRequestedAtLeastOnce = true
@@ -434,8 +445,9 @@ class SystemContactsFetcher: NSObject {
 
         DispatchQueue.global().async {
 
-            var fetchedContacts: [Contact]?
+            Logger.info("\(self.TAG) fetching contacts")
 
+            var fetchedContacts: [Contact]?
             switch self.contactStoreAdapter.fetchContacts() {
             case .success(let result):
                 fetchedContacts = result
@@ -457,7 +469,7 @@ class SystemContactsFetcher: NSObject {
                 if self.lastContactUpdateHash != contactsHash {
                     Logger.info("\(self.TAG) contact hash changed. new contactsHash: \(contactsHash)")
                     shouldNotifyDelegate = true
-                } else if ignoreDebounce {
+                } else if alwaysNotify {
                     Logger.info("\(self.TAG) ignoring debounce.")
                     shouldNotifyDelegate = true
                 } else {