实现订单 Tab 并接入扫码核销流程

suixinkan/Features/Orders/Utils/OrderLocationProvider.swift

@@ -0,0 +1,55 @@
+//
+//  OrderLocationProvider.swift
+//  suixinkan
+//
+
+import CoreLocation
+
+/// 一次性定位，用于多点位核销拉取打卡点。
+final class OrderLocationProvider: NSObject, CLLocationManagerDelegate {
+    private let manager = CLLocationManager()
+    private var continuation: ((Result<CLLocationCoordinate2D, Error>) -> Void)?
+
+    override init() {
+        super.init()
+        manager.delegate = self
+        manager.desiredAccuracy = kCLLocationAccuracyBest
+    }
+
+    func requestCoordinate() async throws -> CLLocationCoordinate2D {
+        let status = manager.authorizationStatus
+        if status == .notDetermined {
+            manager.requestWhenInUseAuthorization()
+        }
+        guard status == .authorizedWhenInUse || status == .authorizedAlways || manager.authorizationStatus == .authorizedWhenInUse else {
+            throw OrderLocationError.permissionDenied
+        }
+        return try await withCheckedThrowingContinuation { continuation in
+            self.continuation = { result in
+                continuation.resume(with: result)
+            }
+            manager.requestLocation()
+        }
+    }
+
+    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
+        guard let location = locations.last else { return }
+        continuation?(.success(location.coordinate))
+        continuation = nil
+    }
+
+    func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
+        continuation?(.failure(error))
+        continuation = nil
+    }
+}
+
+enum OrderLocationError: LocalizedError {
+    case permissionDenied
+
+    var errorDescription: String? {
+        switch self {
+        case .permissionDenied: "缺少定位权限，功能无法进行"
+        }
+    }
+}