// Copyright 2024-present 650 Industries. All rights reserved.

import CoreLocation
import ExpoModulesCore

internal class LocationRequester: BaseLocationProvider {
  private var continuation: CheckedContinuation<CLLocation, Error>?

  deinit {
    continuation?.resume(throwing: Exceptions.LocationRequestCanceled())
    continuation = nil
  }

  func requestLocation() async throws -> CLLocation {
    return try await withCheckedThrowingContinuation { continuation in
      self.continuation = continuation
      manager.requestLocation()
    }
  }

  // MARK: - CLLocationManagerDelegate

  func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    if let lastLocation = locations.last {
      continuation?.resume(returning: lastLocation)
    } else {
      continuation?.resume(throwing: Exceptions.LocationUnavailable())
    }
    continuation = nil
  }

  func locationManager(_ manager: CLLocationManager, didFailWithError error: any Error) {
    continuation?.resume(throwing: Exceptions.LocationUnavailable().causedBy(error))
    continuation = nil
  }
}