// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
//
// You are hereby granted a non-exclusive, worldwide, royalty-free license to use,
// copy, modify, and distribute this software in source code or binary form for use
// in connection with the web services and APIs provided by Facebook.
//
// As with any software that integrates with the Facebook platform, your use of
// this software is subject to the Facebook Developer Principles and Policies
// [http://developers.facebook.com/policy/]. This copyright notice shall be
// included in all copies or substantial portions of the software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#import "_FBSDKLoginRecoveryAttempter.h"

#import "FBSDKLoginKit+Internal.h"

@implementation _FBSDKLoginRecoveryAttempter

- (void)attemptRecoveryFromError:(NSError *)error
                     optionIndex:(NSUInteger)recoveryOptionIndex
                        delegate:(id)delegate
              didRecoverSelector:(SEL)didRecoverSelector
                     contextInfo:(void *)contextInfo {

  void(^handler)(BOOL) = ^(BOOL didRecover) {
    [super completeRecovery:didRecover delegate:delegate didRecoverSelector:didRecoverSelector contextInfo:contextInfo];
  };
  NSSet *currentPermissions = [FBSDKAccessToken currentAccessToken].permissions;
  if (recoveryOptionIndex == 0 && currentPermissions.count > 0) {
    FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
    [login logInWithPermissions:currentPermissions handler:^(FBSDKLoginManagerLoginResult *result, NSError *loginError) {
      // we can only consider a recovery successful if there are no declines
      // (note this could still set an updated currentAccessToken).
      if (!loginError && !result.isCancelled && result.declinedPermissions.count == 0) {
        handler(YES);
      } else {
        handler(NO);
      }
    }];
  } else {
    handler(NO);
  }
}

@end
