Feat macos (#2)

---------

Co-authored-by: intelligence <intelligence@debian.local>
Co-authored-by: jourintown <jourintown@proton.me>
Reviewed-on: #2

macos/Sources/Transui/AppSettings.swift

@@ -0,0 +1,90 @@
+import Combine
+import Foundation
+
+enum TranscriptDestination: String, CaseIterable, Identifiable {
+  case cursor
+  case clipboard
+
+  var id: Self { self }
+
+  var label: String {
+    switch self {
+    case .cursor: "Type at cursor"
+    case .clipboard: "Copy to clipboard"
+    }
+  }
+}
+
+@MainActor
+final class AppSettings: ObservableObject {
+  private enum Key {
+    static let hostedEndpoint = "endpoint"
+    static let hostedModel = "model"
+    static let localEndpoint = "local_endpoint"
+    static let localModel = "local_model"
+    static let hostedFirst = "hosted_first"
+    static let prompt = "prompt"
+    static let destination = "destination"
+    static let shortcut = "shortcut"
+  }
+
+  private let defaults: UserDefaults
+
+  @Published var hostedEndpoint: String {
+    didSet { defaults.set(hostedEndpoint, forKey: Key.hostedEndpoint) }
+  }
+  @Published var hostedModel: String {
+    didSet { defaults.set(hostedModel, forKey: Key.hostedModel) }
+  }
+  @Published var localEndpoint: String {
+    didSet { defaults.set(localEndpoint, forKey: Key.localEndpoint) }
+  }
+  @Published var localModel: String {
+    didSet { defaults.set(localModel, forKey: Key.localModel) }
+  }
+  @Published var hostedFirst: Bool {
+    didSet { defaults.set(hostedFirst, forKey: Key.hostedFirst) }
+  }
+  @Published var prompt: String { didSet { defaults.set(prompt, forKey: Key.prompt) } }
+  @Published var destination: TranscriptDestination {
+    didSet { defaults.set(destination.rawValue, forKey: Key.destination) }
+  }
+  @Published var shortcut: HotkeyShortcut {
+    didSet {
+      if let data = try? JSONEncoder().encode(shortcut) {
+        defaults.set(data, forKey: Key.shortcut)
+      }
+    }
+  }
+
+  init(defaults: UserDefaults = .standard) {
+    self.defaults = defaults
+    hostedEndpoint = defaults.string(forKey: Key.hostedEndpoint) ?? ""
+    hostedModel = defaults.string(forKey: Key.hostedModel) ?? ""
+    localEndpoint = defaults.string(forKey: Key.localEndpoint) ?? "http://localhost:8080"
+    localModel = defaults.string(forKey: Key.localModel) ?? ""
+    hostedFirst = defaults.object(forKey: Key.hostedFirst) as? Bool ?? true
+    prompt = defaults.string(forKey: Key.prompt) ?? ""
+    destination =
+      TranscriptDestination(
+        rawValue: defaults.string(forKey: Key.destination) ?? ""
+      ) ?? .cursor
+    if let data = defaults.data(forKey: Key.shortcut),
+      let saved = try? JSONDecoder().decode(HotkeyShortcut.self, from: data)
+    {
+      shortcut = saved
+    } else {
+      shortcut = .defaultShortcut
+    }
+  }
+
+  var hostedKey: String {
+    get { KeychainStore.read(.hosted) }
+    set { KeychainStore.write(newValue, account: .hosted) }
+  }
+
+  var localKey: String {
+    get { KeychainStore.read(.local) }
+    set { KeychainStore.write(newValue, account: .local) }
+  }
+}