//
//  NetworkView.swift
//  punchnet
//
//  Created by 安礼成 on 2026/1/16.
//

import SwiftUI

struct NetworkView: View {
    @Environment(UserContext.self) var userContext: UserContext
    @State private var networkModel: NetworkModel
    
    init() {
        self.networkModel = NetworkModel(networkSession: self.userContext.networkSession!)
    }
    
    var body: some View {
        VStack {
            HStack {
                
                VStack {
                    HStack(alignment: .center) {
                        Text(networkModel.networkSession.networkName)
                        Text(">")
                        Spacer()
                    }
                    
                    HStack {
                        Toggle("", isOn: $networkModel.isOn)
                            .toggleStyle(SwitchToggleStyle(tint: .green))
                        
                        Text("已连接")
                        
                        Spacer()
                    }
                }
                .frame(width: 320)
                
                // 显示设备和资源选项
                HStack {
                    Button {
                        self.networkModel.showModel = .resource
                    } label: {
                        Text("资源")
                    }
                    
                    Button {
                        self.networkModel.showModel = .device
                    } label: {
                        Text("设备")
                    }
                }
                Spacer()
            }
            
            Group {
                switch self.networkModel.connectState {
                case .waitAuth:
                    NetworkWaitAuthView(networkModel: self.networkModel)
                case .connected:
                    NetworkConnctedView(networkModel: self.networkModel)
                case .disconnected:
                    NetworkDisconnctedView(networkModel: self.networkModel)
                }
            }
            
            Spacer()
        }
        .padding(.top, 10)
        .padding(.leading, 10)
        .toolbar {
            ToolbarItem(placement: .primaryAction) {
                Button {
                    print("clicked")
                } label: {
                    Image(systemName: "gearshape")
                }
            }
        }
    }
}

// 网络处于未连接状态
struct NetworkDisconnctedView: View {
    @Bindable var networkModel: NetworkModel

    var body: some View {
        ZStack {
            Color.clear
            
            VStack {
                
                Button {
                    Task {
                        try await startVpn()
                    }
                } label: {
                    Text("连接")
                        .font(.system(size: 14, weight: .regular))
                        .padding([.top, .bottom], 8)
                        .padding([.leading, .trailing], 30)
                        .foregroundColor(.white)
                    
                }
                .background(Color(red: 74/255, green: 207/255, blue: 154/255))
                .cornerRadius(5)
                .frame(width: 120, height: 35)
                
                Button {
                    Task {
                        try await VPNManager.shared.disableVpn()
                    }
                } label: {
                    Text("关闭")
                        .font(.system(size: 14, weight: .regular))
                        .padding([.top, .bottom], 8)
                        .padding([.leading, .trailing], 30)
                        .foregroundColor(.white)
                    
                }
                .background(Color(red: 74/255, green: 207/255, blue: 154/255))
                .cornerRadius(5)
                .frame(width: 120, height: 35)
            }
        }
        
    }
    
    // 执行登陆操作
    private func startVpn() async throws {
        let clientId = SystemConfig.getClientId()
        
        let options = SystemConfig.getOptions(networkId: 8,
                                              networkDomain: "punchnet.com",
                                              ip: "10.211.179.1",
                                              maskLen: 24,
                                              accessToken: "accessToken1234",
                                              identityId: 1234,
                                              hostname: "mysql",
                                              noticePort: 1234)
        // token存在则优先使用token
        try await VPNManager.shared.enableVpn(options: options!)
    }
    
}


#Preview {
    NetworkView()
}