// Copyright 2016-present 650 Industries. All rights reserved.

#import <ExpoLocation/EXForegroundPermissionRequester.h>
#import <ExpoModulesCore/EXUtilities.h>

#import <objc/message.h>
#import <CoreLocation/CLLocationManagerDelegate.h>

static SEL whenInUseAuthorizationSelector;

@implementation EXForegroundPermissionRequester

+ (NSString *)permissionType
{
  return @"locationForeground";
}

+ (void)load
{
  whenInUseAuthorizationSelector = NSSelectorFromString([@"request" stringByAppendingString:@"WhenInUseAuthorization"]);
}

- (void)requestLocationPermissions
{
  if ([EXBaseLocationRequester isConfiguredForWhenInUseAuthorization] && [self.locationManager  respondsToSelector:whenInUseAuthorizationSelector]) {
    ((void (*)(id, SEL))objc_msgSend)(self.locationManager, whenInUseAuthorizationSelector);
  } else {
    self.reject(@"ERR_LOCATION_INFO_PLIST", @"The `NSLocationWhenInUseUsageDescription` key must be present in Info.plist to be able to use geolocation.", nil);
    
    self.resolve = nil;
    self.reject = nil;
  }
}

- (NSDictionary *)parsePermissions:(CLAuthorizationStatus)systemStatus
{
  EXPermissionStatus status;

  switch (systemStatus) {
    case kCLAuthorizationStatusAuthorizedWhenInUse:
    case kCLAuthorizationStatusAuthorizedAlways: {
      status = EXPermissionStatusGranted;
      break;
    }
    case kCLAuthorizationStatusDenied:
    case kCLAuthorizationStatusRestricted: {
      status = EXPermissionStatusDenied;
      break;
    }
    case kCLAuthorizationStatusNotDetermined:
    default: {
      status = EXPermissionStatusUndetermined;
      break;
    }
  }
  NSString *scope = @(systemStatus == kCLAuthorizationStatusAuthorizedWhenInUse ? "whenInUse" : systemStatus == kCLAuthorizationStatusAuthorizedAlways ? "always" : "none");
  NSString *accuracy = [self accuracyAuthorizationString];

  return @{ @"status": @(status),
            @"ios": @{
              @"scope": scope,
              @"accuracy": accuracy
            },
            @"scope": scope, // Incorrect according to https://docs.expo.dev/versions/latest/sdk/location/#locationpermissionresponse but long-present. TODO remove for SDK 56 or later
            @"accuracy": accuracy
         };
}

@end