//
//  UIViewController+QR.m
//  Unity-iPhone
//
//  Created by zhl on 2022/11/28.
//

#import "UIViewController+QR.h"
#import "QRCodeReaderViewController.h"
#import "QRCodeReader.h"
#import "QRCodeReaderDelegate.h"
#include "permission/LBXPermission.h"
#include "permission/LBXPermissionSetting.h"
#include "LBXScanNative.h"
#include "LBXScanTypes.h"
#include "QrCodeViewController.h"
#include <string>

@interface UIViewController (QR)<UIImagePickerControllerDelegate, UINavigationControllerDelegate>
@end

@implementation UIViewController (QR)



-(void)showQRCode:(NSString *) content title:(NSString *) title oid:(NSString *) oid {
  NSLog(@"showQRCode content: %@, title: %@, oid: %@", content, title, oid);
  dispatch_async(dispatch_get_main_queue(), ^{
    QrCodeViewController *vc = [QrCodeViewController new];
    vc.content = content;
    vc.tipTitle = title;
    vc.autosave = TRUE;
    NSString *tipTxt = @"This QR code is only used to export account recovery private key.\n \
    \n \
    1. Use CEBG client to scan the QR code to get the account recovery private key. \n\
    \n \
    2. Account of ios cannot login to Andorid device. \n \
    \n \
    3. Please keep your private key as safe as possible.";
    vc.tipTxt = tipTxt;
    [self presentViewController:vc animated:YES completion:nil];
  });
}

-(void)loadRestoreKey:(NSString *)funid oid:(NSString *) oid{
  NSLog(@"loadRestoreKey::funid: %@, oid:%@", funid, oid);
//  if ([NSThread isMainThread]) {
//
//  }
  dispatch_async(dispatch_get_main_queue(), ^{
    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Tips"
                                                                             message:@"In order to restore recovery key, please Scan QRCode or Pick from Photo Library."
                                                                      preferredStyle:UIAlertControllerStyleActionSheet];
    UIAlertAction *actionCancel = [UIAlertAction actionWithTitle:@"Cancel"
                                                       style:UIAlertActionStyleCancel
                                                     handler: ^(UIAlertAction *action){
        NSLog(@"alert cancel pressed");
    }];
    
    UIAlertAction *scanAction = [UIAlertAction actionWithTitle:@"Scan"
                                                      style:UIAlertActionStyleDefault
                                                    handler: ^(UIAlertAction *action){
        NSLog(@"scan pressed");
      [self scanQRCode:funid title: @"" ];
    }];
    
    UIAlertAction *photoAction = [UIAlertAction actionWithTitle:@"Photo"
                                                      style:UIAlertActionStyleDefault
                                                    handler: ^(UIAlertAction *action){
        NSLog(@"photo pressed");
      [self openLocalPhotoAlbum];
        
    }];
    [alertController addAction:actionCancel];
    [alertController addAction:scanAction];
    [alertController addAction:photoAction];
    [self presentViewController:alertController animated:YES completion:nil];
  });
}

-(void)startScanQRCode:(NSString *)funid title:(NSString *) title{
  std::string sfunid = std::string([funid UTF8String], [funid lengthOfBytesUsingEncoding:NSUTF8StringEncoding]);
  if ([QRCodeReader supportsMetadataObjectTypes:@[AVMetadataObjectTypeQRCode]]) {
      static QRCodeReaderViewController *vc = nil;
      static dispatch_once_t onceToken;

      dispatch_async(dispatch_get_main_queue(), ^{
          // if we are active again, we don't need to do this anymore
          if (vc == nil) {
              QRCodeReader *reader = [QRCodeReader readerWithMetadataObjectTypes:@[AVMetadataObjectTypeQRCode]];
              vc = [QRCodeReaderViewController readerWithCancelButtonTitle:@"Cancel" codeReader:reader startScanningAtLoad:YES showSwitchCameraButton:YES showTorchButton:YES];
              vc.modalPresentationStyle = UIModalPresentationFormSheet;
          }

          [vc setCompletionWithBlock:^(NSString *resultAsString) {
              NSLog(@"Completion with result: %@", resultAsString);
              [self dismissViewControllerAnimated:YES completion:^{

                  NSString *result;
                  if (resultAsString.length > 0) {
                      result = [NSString stringWithFormat:@"{errcode: 0, data: '%@'}", resultAsString];
                  } else {
                      result = [NSString stringWithFormat:@"{errcode: 1, errmsg: 'cancel'}"];
                  }
                  std::string sresult = std::string([result UTF8String], [result lengthOfBytesUsingEncoding:NSUTF8StringEncoding]);
//                  WalletEvent::Emit(sfunid.c_str(), sresult.c_str());
              }];
          }];
          [self presentViewController:vc animated:YES completion:NULL];
      });
  }
}

-(void)scanQRCode:(NSString *)funid title:(NSString *) title{
  NSLog(@"scanQRCode:: funId: %@ title: %@", funid, title);
//  [self openLocalPhotoAlbum];
//  [self signWithApple];
  
  
  __weak __typeof(self) weakSelf = self;
  [LBXPermission authorizeWithType:LBXPermissionType_Camera completion:^(BOOL granted, BOOL firstTime) {
      if (granted) {
        [weakSelf startScanQRCode:funid title:title];
      }
      else if(!firstTime)
      {
          [LBXPermissionSetting showAlertToDislayPrivacySettingWithTitle:@"Error" msg:@"The camera is need to scan QR codes" cancel:@"Cancel" setting:@"Setting" ];
      }
  }];
}


#pragma mark- - PhotoAlbum
- (void)openLocalPhotoAlbum {
  __weak __typeof(self) weakSelf = self;
  dispatch_async(dispatch_get_main_queue(), ^{
    [LBXPermission authorizeWithType:LBXPermissionType_Photos completion:^(BOOL granted, BOOL firstTime) {
        if (granted) {
            [weakSelf openLocalPhoto];
        }
        else if (!firstTime )
        {
            [LBXPermissionSetting showAlertToDislayPrivacySettingWithTitle:@"Error" msg:@"The Photo Library is need to restore recovery key." cancel:@"Cancel" setting:@"Setting"];
        }
    }];
  });
}


/*!
 * open local Photo Library
 */
- (void)openLocalPhoto
{
  UIImagePickerController *picker = [[UIImagePickerController alloc] init];
  
  picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
  
  picker.delegate = self;
  
  // crash on some mobile
  picker.allowsEditing = NO;
    
  [self presentViewController:picker animated:YES completion:nil];
}
#pragma mark- - UIImagePickerControllerDelegate
-(void)imagePickerController:(UIImagePickerController*)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    [picker dismissViewControllerAnimated:YES completion:^{
        
        [self handPhotoDidFinishPickingMediaWithInfo:info];
    }];
}

- (void)handPhotoDidFinishPickingMediaWithInfo:(NSDictionary *)info
{
  __block UIImage* image = [info objectForKey:UIImagePickerControllerEditedImage];
  
  if (!image){
      image = [info objectForKey:UIImagePickerControllerOriginalImage];
  }
  if (@available(iOS 8.0, *)) {
      __weak __typeof(self) weakSelf = self;
      [LBXScanNative recognizeImage:image success:^(NSArray<LBXScanResult *> *array) {
          [weakSelf scanResultWithArray:array];
      }];
  }else{
    NSLog(@"native低于ios8.0不支持识别图片");
  }
}

- (void)scanResultWithArray:(NSArray<LBXScanResult*>*)array
{
    if (!array || array.count < 1)
    {
      NSLog(@"error scan photo");
        return;
    }
    
    for (LBXScanResult *result in array) {
        NSLog(@"scanResult:%@",result.strScanned);
    }
    
    if (!array[0].strScanned || [array[0].strScanned isEqualToString:@""] ) {
      NSLog(@"识别失败了");
        return;
    }
    LBXScanResult *scanResult = array[0];
    
}

@end