Correctly Handling ACErrorAccountNotFound

gistfile1.m

ACAccountStore * const accountStore = [ACAccountStore new];
ACAccountType * const accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];

[accountStore requestAccessToAccountsWithType:accountType options:@{
	ACFacebookAppIdKey: @"-snip-"
} completion:^(BOOL granted, NSError *error) {
	if (!granted) {
		switch (error.code) {
				case ACErrorAccountNotFound: {
					dispatch_async(dispatch_get_main_queue(), ^{
						SLComposeViewController *composeViewController = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeFacebook];
						[self presentViewController:composeViewController animated:NO completion:^{
							[composeViewController dismissViewControllerAnimated:NO completion:nil];
						}];
					});
					break;
				}
				default: {
					NSLog(@"%s %x %@", __PRETTY_FUNCTION__, granted, error);
					[[[UIAlertView alloc] initWithTitle:@"D:" message:error.localizedFailureReason delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] show];
					break;
				}
		}
		return;
	}
}];

Thanks! :)