using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

namespace YKC
{
    public partial class MainWindow : Window
    {
        private Dictionary<string, Button> _navButtons = new Dictionary<string, Button>();
        private Dictionary<string, string> _navTitles = new Dictionary<string, string>();
        private string _username = "Admin";

        public void SetUser(string name)
        {
            _username = name;
            if (txtUser != null) txtUser.Text = name;
        }

        public MainWindow()
        {
            InitializeComponent();

            _navButtons["dashboard"] = btnDashboard;
            _navButtons["realtime"] = btnRealtime;
            _navButtons["charger"] = btnCharger;
            _navButtons["gateway"] = btnGateway;

            _navTitles["dashboard"] = "总览";
            _navTitles["realtime"] = "实时监控";
            _navTitles["charger"] = "充电桩管理";
            _navTitles["gateway"] = "网关管理";

            txtUser.Text = "Admin";

            Loaded += (s, e) =>
            {
                UdpClientHolder.Instance.OnActiveReport += PilesStoreHolder.Instance.HandleReport;
                NavigateTo("dashboard");
            };
        }

        private void SetActiveNav(string key)
        {
            foreach (var kv in _navButtons)
            {
                var btn = kv.Value;
                var border = btn.Template?.FindName("border", btn) as Border;
                if (kv.Key == key)
                {
                    btn.Foreground = new SolidColorBrush(Colors.White);
                    btn.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#1A3A5C"));
                    btn.BorderBrush = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#3B82F6"));
                    btn.BorderThickness = new Thickness(3, 0, 0, 0);
                }
                else
                {
                    btn.Foreground = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#8899AA"));
                    btn.Background = new SolidColorBrush(Colors.Transparent);
                    btn.BorderBrush = new SolidColorBrush(Colors.Transparent);
                    btn.BorderThickness = new Thickness(3, 0, 0, 0);
                }
            }
        }

        private void NavigateTo(string key)
        {
            SetActiveNav(key);
            txtPageTitle.Text = _navTitles.ContainsKey(key) ? _navTitles[key] : key;

            Uri uri;
            switch (key)
            {
                case "dashboard": uri = new Uri("Pages/DashboardPage.xaml", UriKind.Relative); break;
                case "realtime":  uri = new Uri("Pages/RealtimePage.xaml", UriKind.Relative); break;
                case "charger":   uri = new Uri("Pages/ChargerPage.xaml", UriKind.Relative); break;
                case "gateway":   uri = new Uri("Pages/GatewayPage.xaml", UriKind.Relative); break;
                default: return;
            }

            contentFrame.Source = uri;
        }

        private void NavButton_Click(object sender, RoutedEventArgs e)
        {
            if (sender is Button btn && btn.Tag is string key)
            {
                NavigateTo(key);
            }
        }

        private void Logout_Click(object sender, RoutedEventArgs e)
        {
            var result = MessageBox.Show("确认退出登录？", "退出", MessageBoxButton.YesNo, MessageBoxImage.Question);
            if (result == MessageBoxResult.Yes)
            {
                var loginWin = new LoginWindow();
                loginWin.Show();
                Close();
            }
        }

        private void Header_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            if (e.LeftButton == System.Windows.Input.MouseButtonState.Pressed)
                DragMove();
        }
    }
}