swift-apple-intelligence-grpc/Sources/AppleIntelligenceApp/Models/AppSettings.swift

import Foundation
import ServiceManagement

@Observable
final class AppSettings {
    var host: String {
        didSet { UserDefaults.standard.set(host, forKey: "grpc_host") }
    }

    var port: Int {
        didSet { UserDefaults.standard.set(port, forKey: "grpc_port") }
    }

    var apiKey: String {
        didSet { UserDefaults.standard.set(apiKey, forKey: "api_key") }
    }

    var autoStartServer: Bool {
        didSet { UserDefaults.standard.set(autoStartServer, forKey: "auto_start_server") }
    }

    var launchAtLogin: Bool {
        didSet {
            do {
                if launchAtLogin {
                    try SMAppService.mainApp.register()
                } else {
                    try SMAppService.mainApp.unregister()
                }
            } catch {
                print("Failed to update launch at login: \(error)")
            }
        }
    }

    init() {
        self.host = UserDefaults.standard.string(forKey: "grpc_host") ?? "0.0.0.0"
        let savedPort = UserDefaults.standard.integer(forKey: "grpc_port")
        self.port = savedPort == 0 ? 50051 : savedPort
        self.apiKey = UserDefaults.standard.string(forKey: "api_key") ?? ""
        self.autoStartServer = UserDefaults.standard.bool(forKey: "auto_start_server")
        self.launchAtLogin = SMAppService.mainApp.status == .enabled
    }

    func resetToDefaults() {
        host = "0.0.0.0"
        port = 50051
        apiKey = ""
        autoStartServer = false
        launchAtLogin = false
    }
}