110 lines
3.3 KiB
Swift
110 lines
3.3 KiB
Swift
import ClawdisKit
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import CoreLocation
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import Foundation
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@MainActor
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final class MacNodeLocationService: NSObject, CLLocationManagerDelegate {
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enum Error: Swift.Error {
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case timeout
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case unavailable
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}
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private let manager = CLLocationManager()
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private var locationContinuation: CheckedContinuation<CLLocation, Swift.Error>?
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override init() {
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super.init()
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self.manager.delegate = self
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self.manager.desiredAccuracy = kCLLocationAccuracyBest
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}
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func authorizationStatus() -> CLAuthorizationStatus {
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self.manager.authorizationStatus
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}
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func accuracyAuthorization() -> CLAccuracyAuthorization {
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if #available(macOS 11.0, *) {
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return self.manager.accuracyAuthorization
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}
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return .fullAccuracy
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}
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func currentLocation(
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desiredAccuracy: ClawdisLocationAccuracy,
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maxAgeMs: Int?,
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timeoutMs: Int?) async throws -> CLLocation
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{
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guard CLLocationManager.locationServicesEnabled() else {
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throw Error.unavailable
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}
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let now = Date()
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if let maxAgeMs,
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let cached = self.manager.location,
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now.timeIntervalSince(cached.timestamp) * 1000 <= Double(maxAgeMs)
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{
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return cached
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}
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self.manager.desiredAccuracy = Self.accuracyValue(desiredAccuracy)
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let timeout = max(0, timeoutMs ?? 10_000)
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return try await self.withTimeout(timeoutMs: timeout) {
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try await self.requestLocation()
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}
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}
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private func requestLocation() async throws -> CLLocation {
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try await withCheckedThrowingContinuation { cont in
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self.locationContinuation = cont
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self.manager.requestLocation()
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}
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}
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private func withTimeout<T>(
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timeoutMs: Int,
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operation: @escaping () async throws -> T) async throws -> T
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{
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if timeoutMs == 0 {
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return try await operation()
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}
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return try await withThrowingTaskGroup(of: T.self) { group in
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group.addTask { try await operation() }
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group.addTask {
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try await Task.sleep(nanoseconds: UInt64(timeoutMs) * 1_000_000)
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throw Error.timeout
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}
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let result = try await group.next()!
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group.cancelAll()
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return result
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}
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}
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private static func accuracyValue(_ accuracy: ClawdisLocationAccuracy) -> CLLocationAccuracy {
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switch accuracy {
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case .coarse:
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return kCLLocationAccuracyKilometer
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case .balanced:
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return kCLLocationAccuracyHundredMeters
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case .precise:
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return kCLLocationAccuracyBest
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}
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}
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func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
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guard let cont = self.locationContinuation else { return }
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self.locationContinuation = nil
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if let latest = locations.last {
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cont.resume(returning: latest)
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} else {
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cont.resume(throwing: Error.unavailable)
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}
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}
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func locationManager(_ manager: CLLocationManager, didFailWithError error: Swift.Error) {
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guard let cont = self.locationContinuation else { return }
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self.locationContinuation = nil
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cont.resume(throwing: error)
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}
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}
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