// Note: This code was forked from https://github.com/dealrinc/cordova-gmv-barcode-scanner

// ----------------------------------------------------------------------------
// |  Imports
// ----------------------------------------------------------------------------
@import MLKitBarcodeScanning;

// ----------------------------------------------------------------------------
// |  Header File Imports
// ----------------------------------------------------------------------------
#import "CDViOSScanner.h"

@class UIViewController;

@interface CDViOSScanner ()
{
  NSInteger _previousStatusBarStyle;
}
@end


@implementation CDViOSScanner

- (void)pluginInitialize
{
  _previousStatusBarStyle = -1;
}

- (void) startScan:(CDVInvokedUrlCommand *)command
{
  //Force portrait orientation.
  if (@available(iOS 16.0, *)) {
    UIWindowScene *windowScene = self.cameraViewController.view.window.windowScene;
    UIWindowSceneGeometryPreferencesIOS *preferences = [[UIWindowSceneGeometryPreferencesIOS alloc]
      initWithInterfaceOrientations:UIInterfaceOrientationMaskPortrait];
    [windowScene requestGeometryUpdateWithPreferences:preferences errorHandler:^(NSError * _Nonnull error) {
      NSLog(@"Failed to change orientation %@", error);
    }];
  } else {
    [[UIDevice currentDevice] setValue:
      [NSNumber numberWithInteger:UIInterfaceOrientationPortrait]
                    forKey:@"orientation"];
  }

  dispatch_async(dispatch_get_main_queue(), ^{
    NSLog(@"Arguments %@", command.arguments);
    if(_scannerOpen == YES) {
      //Scanner is currently open, throw error.
      NSArray *response = @[@"SCANNER_OPEN", @"", @""];
      CDVPluginResult *pluginResult=[CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsArray:response];

      [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
    } else {
      //Open scanner.
      _scannerOpen = YES;
      self.cameraViewController = [[CameraViewController alloc] init];
      self.cameraViewController.modalPresentationStyle = UIModalPresentationFullScreen;
      self.cameraViewController.delegate = self;

      //Provide settings to the camera view.
      NSNumberFormatter *f = [[NSNumberFormatter alloc] init];
      f.numberStyle = NSNumberFormatterDecimalStyle;
      NSNumber * barcodeFormats = [command argumentAtIndex:0 withDefault:@1234];
      self.cameraViewController.scanAreaWidth = (CGFloat)[[command argumentAtIndex:1 withDefault:@.5] floatValue];
      self.cameraViewController.scanAreaHeight = (CGFloat)[[command argumentAtIndex:2 withDefault:@.7] floatValue];
      self.cameraViewController.barcodeFormats = barcodeFormats;

      NSLog(@"Test %@, width: %f, height: %f, barcodeFormats: %@",[command.arguments objectAtIndex:2], self.cameraViewController.scanAreaWidth, self.cameraViewController.scanAreaHeight, self.cameraViewController.barcodeFormats);

      [self.viewController presentViewController:self.cameraViewController animated: NO completion:nil];
      _callback = command.callbackId;
    }
  });

}

-(void)sendResult:(NSString *)value
{
  [self.cameraViewController dismissViewControllerAnimated:NO completion:nil];
  _scannerOpen = NO;

  NSArray *response = @[value, @"", @""];
  CDVPluginResult *pluginResult=[CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsArray:response];

  [self.commandDelegate sendPluginResult:pluginResult callbackId:_callback];
}

-(void)closeScanner
{
  [self.cameraViewController dismissViewControllerAnimated:NO completion:nil];
  _scannerOpen = NO;

  NSArray *response = @[@"USER_CANCELLED", @"", @""];
  CDVPluginResult *pluginResult=[CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsArray:response];

  [self.commandDelegate sendPluginResult:pluginResult callbackId:_callback];

}


- (void)show:(CDVInvokedUrlCommand*)command
{
  if (self.cameraViewController == nil) {
    NSLog(@"Tried to show scanner after it was closed.");
    return;
  }
  if (_previousStatusBarStyle != -1) {
    NSLog(@"Tried to show scanner while already shown");
    return;
  }

  _previousStatusBarStyle = [UIApplication sharedApplication].statusBarStyle;

  __block UINavigationController* nav = [[UINavigationController alloc]
                       initWithRootViewController:self.cameraViewController];
  //nav.orientationDelegate = self.cameraViewController;
  nav.navigationBarHidden = YES;
  nav.modalPresentationStyle = self.cameraViewController.modalPresentationStyle;

  __weak CDViOSScanner* weakSelf = self;

  // Run later to avoid the "took a long time" log message.
  dispatch_async(dispatch_get_main_queue(), ^{
    if (weakSelf.cameraViewController != nil) {
      CGRect frame = [[UIScreen mainScreen] bounds];
      UIWindow *tmpWindow = [[UIWindow alloc] initWithFrame:frame];
      UIViewController *tmpController = [[UIViewController alloc] init];
      [tmpWindow setRootViewController:tmpController];
      [tmpWindow setWindowLevel:UIWindowLevelNormal];

      [tmpWindow makeKeyAndVisible];
      [tmpController presentViewController:nav animated:NO completion:nil];
    }
  });
}

@end