107 lines
3.5 KiB
Swift
107 lines
3.5 KiB
Swift
//
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// GSDestinations.swift
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// ListenerGS
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//
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// Created by Jeremy Rand on 2021-10-19.
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//
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import Foundation
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struct Destination: Identifiable, Hashable {
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let ipAddress : String
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let id : UUID
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init(ipAddress: String)
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{
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self.ipAddress = ipAddress
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self.id = UUID()
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}
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init(ipAddress: String, uuid: String)
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{
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self.ipAddress = ipAddress
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let idMaybe = UUID(uuidString: uuid)
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if let id = idMaybe {
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self.id = id
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} else {
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self.id = UUID()
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}
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}
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}
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class GSDestinations : ObservableObject {
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@Published var dests:[Destination] = []
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private var storedDestinations : [Any] = []
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static let kDestinationKey = "destinations"
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static let kDestinationIpAddress = "ip_address"
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static let kDestinationUUID = "uuid"
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public func onDelete(offsets: IndexSet) {
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dests.remove(atOffsets: offsets)
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storedDestinations.remove(atOffsets: offsets)
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saveDestinations()
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}
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public func onMove(source: IndexSet, destination: Int) {
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dests.move(fromOffsets: source, toOffset: destination)
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storedDestinations.move(fromOffsets: source, toOffset: destination)
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saveDestinations()
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}
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public func onAdd(ipAddress: String) {
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let newDestination = Destination(ipAddress: ipAddress)
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dests.append(newDestination)
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storedDestinations.append([GSDestinations.kDestinationIpAddress : ipAddress, GSDestinations.kDestinationUUID : newDestination.id.uuidString])
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saveDestinations()
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}
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private func loadDestinations() {
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if let newStoredDestinations = NSUbiquitousKeyValueStore.default.array(forKey: GSDestinations.kDestinationKey) {
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storedDestinations = newStoredDestinations
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dests = []
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for value in storedDestinations {
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if let ipAddress = (value as! [String:String])[GSDestinations.kDestinationIpAddress] {
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if let id = (value as! [String:String])[GSDestinations.kDestinationUUID] {
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dests.append(Destination(ipAddress: ipAddress, uuid: id))
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} else {
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dests.append(Destination(ipAddress: ipAddress))
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}
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} else {
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storedDestinations = []
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dests = []
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break
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}
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}
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} else {
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storedDestinations = []
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dests = []
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}
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}
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private func saveDestinations() {
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NSUbiquitousKeyValueStore.default.set(storedDestinations, forKey: GSDestinations.kDestinationKey)
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NSUbiquitousKeyValueStore.default.synchronize()
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}
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@objc func onUbiquitousKeyValueStoreDidChangeExternally(notification:Notification)
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{
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// It would be nice to do something better than just replacing dests with what we get from iCloud.
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// I think when we do this, the entire list will be rebuilt and anything selected is probably lost.
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// The list isn't likely to change and will also be small so maybe it isn't too big of a deal.
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loadDestinations()
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}
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init() {
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loadDestinations()
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NotificationCenter.default.addObserver(self, selector: #selector(onUbiquitousKeyValueStoreDidChangeExternally(notification:)), name: NSUbiquitousKeyValueStore.didChangeExternallyNotification, object: NSUbiquitousKeyValueStore.default)
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}
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deinit {
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NotificationCenter.default.removeObserver(self)
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}
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}
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