- Saves user metadata in keychain. (#305)

- Adds Swift stubs for the new API.
- Shows the `isNewUser` bit in the sample app.

4 files changed, 31 insertions, 10 deletions

diff --git a/Example/Auth/Sample/MainViewController.m b/Example/Auth/Sample/MainViewController.m
index 2782f21..e5333cf 100644
--- a/Example/Auth/Sample/MainViewController.m
+++ b/Example/Auth/Sample/MainViewController.m
@@ -1740,8 +1740,7 @@ static NSDictionary<NSString *, NSString *> *parseURL(NSString *urlString) {
           [self logSuccess:@"reauthenticate operation succeeded."];
         }
         if (authResult.additionalUserInfo) {
-          [self logSuccess:
-              [NSString stringWithFormat:@"%@", authResult.additionalUserInfo.profile]];
+          [self logSuccess:[self stringWithAdditionalUserInfo:authResult.additionalUserInfo]];
         }
         [self showTypicalUIForUserUpdateResultsWithTitle:@"Reauthenticate" error:error];
       };
@@ -1779,8 +1778,7 @@ static NSDictionary<NSString *, NSString *> *parseURL(NSString *urlString) {
           [self logSuccess:@"sign-in with provider succeeded."];
         }
         if (authResult.additionalUserInfo) {
-          [self logSuccess:
-              [NSString stringWithFormat:@"%@", authResult.additionalUserInfo.profile]];
+          [self logSuccess:[self stringWithAdditionalUserInfo:authResult.additionalUserInfo]];
         }
         [self showTypicalUIForUserUpdateResultsWithTitle:@"Sign-In" error:error];
       };
@@ -1927,8 +1925,7 @@ static NSDictionary<NSString *, NSString *> *parseURL(NSString *urlString) {
           [self logSuccess:@"link auth provider succeeded."];
         }
         if (authResult.additionalUserInfo) {
-          [self logSuccess:
-              [NSString stringWithFormat:@"%@", authResult.additionalUserInfo.profile]];
+          [self logSuccess:[self stringWithAdditionalUserInfo:authResult.additionalUserInfo]];
         }
         if (retrieveData) {
           [self showUIForAuthDataResultWithResult:authResult error:error];
@@ -2755,6 +2752,19 @@ static NSDictionary<NSString *, NSString *> *parseURL(NSString *urlString) {
   return actionCodeSettings;
 }
 
+/** @fn stringWithAdditionalUserInfo:
+    @brief Gets the string description of the additional user info.
+    @param additionalUserInfo The additional user info in question.
+    @return A string to description the additional user info.
+ */
+- (NSString *)stringWithAdditionalUserInfo:(nullable FIRAdditionalUserInfo *)additionalUserInfo {
+  if (!additionalUserInfo) {
+    return @"(no additional user info)";
+  }
+  NSString *newUserString = additionalUserInfo.isNewUser ? @"new user" : @"existing user";
+  return [NSString stringWithFormat:@"%@: %@", newUserString, additionalUserInfo.profile];
+}
+
 /** @fn showTypicalUIForUserUpdateResultsWithTitle:error:
     @brief Shows a prompt if error is non-nil with the localized description of the error.
     @param resultsTitle The title of the prompt
@@ -2796,10 +2806,8 @@ static NSDictionary<NSString *, NSString *> *parseURL(NSString *urlString) {
                   showCancelButton:NO
                         completion:^(BOOL userPressedOK,
                                      NSString *_Nullable userInput) {
-    NSString *profileMessaage =
-        [NSString stringWithFormat:@"%@", result.additionalUserInfo.profile ?: @""];
     [self showMessagePromptWithTitle:@"Profile Info"
-                             message:profileMessaage
+                             message:[self stringWithAdditionalUserInfo:result.additionalUserInfo]
                     showCancelButton:NO
                           completion:nil];
     [self updateUserInfo];
diff --git a/Example/Auth/Sample/UserInfoViewController.m b/Example/Auth/Sample/UserInfoViewController.m
index 379e883..60a3e4c 100644
--- a/Example/Auth/Sample/UserInfoViewController.m
+++ b/Example/Auth/Sample/UserInfoViewController.m
@@ -40,7 +40,8 @@ static NSString *stringFromDate(NSDate *date) {
     return @"nil";
   }
   NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
-  [dateFormatter setDateStyle:NSDateFormatterMediumStyle];
+  dateFormatter.dateStyle = NSDateFormatterShortStyle;
+  dateFormatter.timeStyle = NSDateFormatterShortStyle;
   return [dateFormatter stringFromDate:date];
 }
 
diff --git a/Example/Auth/SwiftSample/Stubs.swift b/Example/Auth/SwiftSample/Stubs.swift
index 6733c4d..4f4ccc0 100644
--- a/Example/Auth/SwiftSample/Stubs.swift
+++ b/Example/Auth/SwiftSample/Stubs.swift
@@ -43,3 +43,13 @@ func languageStubs() {
   Auth.auth().languageCode = "asdf"
   Auth.auth().useAppLanguage()
 }
+
+func metadataStubs() {
+  let credential = OAuthProvider.credential(withProviderID: "fake", accessToken: "none")
+  Auth.auth().signInAndRetrieveData(with: credential) { result, error in
+    let _: Bool? = result!.additionalUserInfo!.isNewUser
+    let metadata: UserMetadata = result!.user.metadata
+    let _: Date? = metadata.lastSignInDate
+    let _: Date? = metadata.creationDate
+  }
+}
diff --git a/Example/Auth/Tests/FIRUserTests.m b/Example/Auth/Tests/FIRUserTests.m
index 7dc6ecd..62d2eda 100644
--- a/Example/Auth/Tests/FIRUserTests.m
+++ b/Example/Auth/Tests/FIRUserTests.m
@@ -399,6 +399,8 @@ static const NSTimeInterval kExpectationTimeout = 1;
     XCTAssertEqual(unarchivedUser.anonymous, user.anonymous);
     XCTAssertEqual(unarchivedUser.emailVerified, user.emailVerified);
     XCTAssertEqualObjects(unarchivedUser.refreshToken, user.refreshToken);
+    XCTAssertEqualObjects(unarchivedUser.metadata.creationDate, user.metadata.creationDate);
+    XCTAssertEqualObjects(unarchivedUser.metadata.lastSignInDate, user.metadata.lastSignInDate);
     XCTAssertEqual(unarchivedUser.providerData.count, user.providerData.count);
 
     NSDictionary<NSString *, id<FIRUserInfo>> *unarchivedProviderMap =