import Cocoa
import FlutterMacOS
import ServiceManagement

class MainFlutterWindow: NSWindow {
  // launch_at_startup 插件在 macOS 没自带实现,需宿主接 MethodChannel。学 Tailscale 用
  // SMAppService.loginItem 注册内置的 PangolinLoginHelper(登录时它带 --autostart 拉起主 app)。
  private let loginHelperID = "com.pangolin.pangolin.LoginHelper"

  override func awakeFromNib() {
    let flutterViewController = FlutterViewController()
    self.contentViewController = flutterViewController

    // 桌面默认窗口 920×600（对齐设计稿 ui_kits/desktop），最小 720×560。
    let defaultSize = NSSize(width: 920, height: 600)
    self.setContentSize(defaultSize)
    self.contentMinSize = NSSize(width: 720, height: 560)
    self.center()

    RegisterGeneratedPlugins(registry: flutterViewController)

    // P1 方案B:VPN 原生控制通道(NETunnelProviderManager 启停 PacketTunnel)。
    // 需 VpnChannel.swift 已加入 Runner target 的 Compile Sources。
    VpnChannel.register(with: flutterViewController.registrar(forPlugin: "VpnChannel"))

    // 开机自启 MethodChannel(launch_at_startup 插件的原生侧,macOS 需宿主实现)。
    registerLaunchAtStartupChannel(messenger: flutterViewController.engine.binaryMessenger)

    super.awakeFromNib()

    // 开机自启(登录项带 --autostart):不弹主窗口,直接隐藏到托盘(与 Windows 一致)。
    // Dart 侧 main() 也会 windowManager.hide();这里原生 orderOut 兜底,避免 storyboard
    // "Visible At Launch" 把窗口闪出来。常规启动(无参数)正常显示。
    if CommandLine.arguments.contains("--autostart") {
      self.orderOut(nil)
    }
  }

  // launch_at_startup 的 macOS 原生实现:SMAppService.loginItem 注册/注销 LoginHelper。
  private func registerLaunchAtStartupChannel(messenger: FlutterBinaryMessenger) {
    let channel = FlutterMethodChannel(name: "launch_at_startup", binaryMessenger: messenger)
    let helperID = loginHelperID
    channel.setMethodCallHandler { call, result in
      guard #available(macOS 13.0, *) else {
        result(FlutterError(code: "unsupported", message: "开机自启需 macOS 13+", details: nil))
        return
      }
      let svc = SMAppService.loginItem(identifier: helperID)
      switch call.method {
      case "launchAtStartupIsEnabled":
        result(svc.status == .enabled)
      case "launchAtStartupSetEnabled":
        let on = ((call.arguments as? [String: Any])?["setEnabledValue"] as? Bool) ?? false
        do {
          if on {
            if svc.status != .enabled { try svc.register() }
          } else {
            if svc.status == .enabled { try svc.unregister() }
          }
          result(nil)
        } catch {
          NSLog("[pangolin/launch] SMAppService %@ failed: %@", on ? "register" : "unregister", error.localizedDescription)
          result(FlutterError(code: "smappservice", message: error.localizedDescription, details: nil))
        }
      default:
        result(FlutterMethodNotImplemented)
      }
    }
  }
}