//
//  punchnetApp.swift
//  punchnet
//
//  Created by 安礼成 on 2025/5/12.
//

import SwiftUI
import AppKit
import SwiftData
import Combine

@main
struct punchnetApp: App {
    /*
    var sharedModelContainer: ModelContainer = {
        let schema = Schema([
            Item.self,
        ])
        let modelConfiguration = ModelConfiguration(schema: schema, isStoredInMemoryOnly: false)

        do {
            return try ModelContainer(for: schema, configurations: [modelConfiguration])
        } catch {
            fatalError("Could not create ModelContainer: \(error)")
        }
    }()
     */
    
    @Environment(\.openWindow) private var openWindow
    @NSApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
    
    private var noticeServer: UDPNoticeCenterServer
    @State private var appContext: AppContext
    @AppStorage("hasAcceptedPrivacy") var hasAcceptedPrivacy: Bool = false
    // UI 控制状态：是否显示弹窗
    @State private var showPrivacy: Bool = false
    
    @State private var vpnManager = VPNManager.shared
    
    init() {
        self.noticeServer = UDPNoticeCenterServer()
        self.noticeServer.start()
        self.appContext = AppContext(noticePort: self.noticeServer.port)
    }
    
    var body: some Scene {
        Window("登陆", id: "login") {
            LoginRootView()
                .navigationTitle("")
                .environment(self.appContext)
                .onAppear {
                    self.showPrivacy = !hasAcceptedPrivacy
                }
                .sheet(isPresented: $showPrivacy) {
                    PrivacyDetailView(showPrivacy: $showPrivacy)
                        .interactiveDismissDisabled() // 强制阅读
                }
        }
        .windowToolbarStyle(.unified)
        .windowResizability(.contentSize)
        .defaultPosition(.center)
        
        Window("网络", id: "logined") {
            NetworkView()
                .environment(self.appContext)
                .frame(width: 750, height: 500)
        }
        .windowResizability(.contentSize)
        .defaultPosition(.center)
        
        Window("设置", id: "settings") {
            SettingsView()
                .environment(self.appContext)
                .frame(width: 750, height: 500)
        }
        .windowResizability(.contentSize)
        .defaultPosition(.center)

        MenuBarExtra("punchnet", image: "logo_32") {
            VStack {
                
                switch self.vpnManager.vpnStatus {
                case .connected:
                    Button(action: {
                        Task { @MainActor in
                            try await vpnManager.disableVpn()
                        }
                    }, label: {
                        Text("停止")
                    })
                case .disconnected:
                    Button(action: {
                        Task { @MainActor in
                            await self.startVPN()
                        }
                    }, label: {
                        Text("启动")
                    })
                }
                
                Divider()
                
                Button(action: {
                    NSApplication.shared.terminate(nil)
                }, label: {
                    Text("退出应用")
                })
                
            }
        }
        .menuBarExtraStyle(.menu)
    }
    
    private func startVPN() async {
        if let options = appContext.vpnOptions {
            try? await vpnManager.enableVpn(options: options)
        } else {
            openWindow(id: "login")
        }
    }
    
}

// 处理APP的生命周期
class AppDelegate: NSObject, NSApplicationDelegate {
    
    func applicationWillFinishLaunching(_ notification: Notification) {
        
    }
    
    func applicationShouldTerminate(_ sender: NSApplication) -> NSApplication.TerminateReply {
        print("call me applicationShouldTerminate")
        Task {
            do {
                try await VPNManager.shared.disableVpn()
                NSLog("vpn disabled")
            } catch let err {
                NSLog("退出时关闭 VPN 失败: \(err)")
            }
            
            await MainActor.run {
                sender.reply(toApplicationShouldTerminate: true)
            }
        }
        
        return .terminateLater
    }
    
}