using SHH.CameraDashboard.Services;
using System.Collections.ObjectModel;
using System.Windows;
using System.Windows.Controls;
using System.Xml.Linq;

namespace SHH.CameraDashboard
{
    public partial class WizardControl : UserControl
    {
        private const string ServerConfigFile = "servers.config.json";

        // 绑定源
        public ObservableCollection<ServerNode> Nodes { get; set; } = new ObservableCollection<ServerNode>();

        // 定义关闭事件，通知主窗体关闭模态框
        public event EventHandler RequestClose;

        public WizardControl()
        {
            InitializeComponent();

            // 使用泛型加载，指定返回类型为 ObservableCollection<ServerNode>
            // 这里的 LoadServers 逻辑变为了通用的 Load<T>
            Nodes = StorageService.Load<ObservableCollection<ServerNode>>(ServerConfigFile);

            NodeList.ItemsSource = Nodes;
        }

        private void AddNode_Click(object sender, RoutedEventArgs e)
        {
            Nodes.Add(new ServerNode());
        }

        private void DeleteNode_Click(object sender, RoutedEventArgs e)
        {
            if (sender is Button btn && btn.DataContext is ServerNode node)
            {
                Nodes.Remove(node);
            }
        }

        private async void Check_Click(object sender, RoutedEventArgs e)
        {
            // 禁用按钮防止重复点击
            var btn = sender as Button;
            if (btn != null) btn.IsEnabled = false;

            foreach (var node in Nodes)
            {
                node.SetResult(false, "⏳ 检测中...");

                // 构造 URL
                string url = $"http://{node.Ip}:{node.Port}/api/Cameras";
                // 或者是 /api/health，看你的后端提供什么接口

                try
                {
                    // 【修改】这里调用封装好的 HttpService
                    // 我们使用 TestConnectionAsync，它内部会触发 OnApiLog 事件记录日志
                    bool isConnected = await HttpService.TestConnectionAsync(url);

                    if (isConnected)
                        node.SetResult(true, "✅ 连接成功");
                    else
                        node.SetResult(false, "❌ 状态码异常");
                }
                catch (Exception ex)
                {
                    // 异常也被 HttpService 记录了，这里只负责更新 UI 状态
                    node.SetResult(false, "❌ 无法连接");
                }
            }

            if (btn != null) btn.IsEnabled = true;
        }

        private void Apply_Click(object sender, RoutedEventArgs e)
        {
            // 将当前的 Nodes 集合保存到指定文件
            StorageService.Save(Nodes, ServerConfigFile);

            // 同步到全局单例内存中
            AppGlobalData.SaveConfig(Nodes);

            RequestClose?.Invoke(this, EventArgs.Empty);
        }

        private void Cancel_Click(object sender, RoutedEventArgs e)
        {
            RequestClose?.Invoke(this, EventArgs.Empty);
        }
    }
}