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DeviceId.swift
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DeviceId.swift
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import Dependencies
import Foundation
import XCTestDynamicOverlay
public struct DeviceIdentifier {
public var id: () -> UUID
}
extension DependencyValues {
public var deviceId: DeviceIdentifier {
get { self[DeviceIdentifier.self] }
set { self[DeviceIdentifier.self] = newValue }
}
}
extension DeviceIdentifier: TestDependencyKey {
public static let previewValue = Self.noop
public static let testValue = Self(
id: XCTUnimplemented("\(Self.self).id", placeholder: UUID())
)
}
extension DeviceIdentifier: DependencyKey {
public static let liveValue = Self(
id: {
if let uuidString = NSUbiquitousKeyValueStore.default.string(forKey: deviceIdKey),
let uuid = UUID.init(uuidString: uuidString)
{
return uuid
}
let uuid = UUID()
NSUbiquitousKeyValueStore.default.set(uuid.uuidString, forKey: deviceIdKey)
return uuid
}
)
}
extension DeviceIdentifier {
public static let noop = Self(
id: { UUID(uuidString: "deadbeef-dead-beef-dead-beefdeadbeef")! }
)
}
private let deviceIdKey = "co.pointfree.device-id"