using AnotherReplayReader.Utils;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Web;
using System.Windows;
using static System.Text.Json.JsonSerializer;

namespace AnotherReplayReader
{
    /// <summary>
    /// Window1.xaml 的交互逻辑
    /// </summary>
    internal partial class Window1 : Window
    {
        private readonly PlayerIdentity _identity;

        public Window1(PlayerIdentity identity)
        {
            InitializeComponent();
            _identity = identity;
            Refresh(true);
        }

        private async void Refresh(bool showCached)
        {
            _setIPButton.IsEnabled = false;
            try
            {
                var loading = new IpAndPlayer[] { new() { Ip = 0, Id = "正在加载..." } };
                _dataGrid.ItemsSource = loading;
                if (showCached)
                {
                    await Display();
                    _dataGrid.ItemsSource = loading.Concat(_dataGrid.ItemsSource.Cast<IpAndPlayer>());
                }
                await _identity.Fetch();
                await Display();
            }
            catch (Exception e)
            {
                MessageBox.Show(this, $"无法加载IP表：{e}");
            }
            finally
            {
                _setIPButton.IsEnabled = true;
            }
        }

        private async Task Display(string filter = "", string nameFilter = "")
        {
            var result = await Task.Run(() =>
            {
                var pinyin = nameFilter.ToPinyin();
                var query = _identity
                    .AsSortedList()
                    .Where(x =>
                    {
                        if (!x.IpString.Contains(filter))
                        {
                            return false;
                        }
                        if (x.PinyinId?.ContainsIgnoreCase(pinyin) is true)
                        {
                            return true;
                        }
                        return x.Id.ContainsIgnoreCase(nameFilter);
                    });
                return new ObservableCollection<IpAndPlayer>(query);
            });
            _dataGrid.ItemsSource = result;
        }

        private async void OnClick(object sender, RoutedEventArgs e)
        {
            _setIPButton.IsEnabled = false;
            try
            {
                var ipText = _ipField.Text;
                if (!IPAddress.TryParse(ipText, out var ip))
                {
                    MessageBox.Show(this, "IP 格式不正确");
                    return;
                }
                var idText = _idField.Text;
                if (string.IsNullOrWhiteSpace(idText))
                {
                    var choice = MessageBox.Show(this, "没有输入任何关于该玩家的说明，是否继续？", "注意", MessageBoxButton.OKCancel);
                    if (choice != MessageBoxResult.OK)
                    {
                        return;
                    }
                }

                var result = await UpdateIpTable(ip, idText);
                if (!result)
                {
                    MessageBox.Show(this, "设置 IP 表失败");
                }

                Refresh(false);
            }
            catch (Exception exception)
            {
                MessageBox.Show(this, $"设置 IP 表时发生错误。\r\n{exception}");
            }
            finally
            {
                _setIPButton.IsEnabled = true;
            }
        }

        private static async Task<bool> UpdateIpTable(IPAddress ip, string idText)
        {
            var bytes = ip.GetAddressBytes();
            var ipNum = (uint)bytes[0] * 256 * 256 * 256 + bytes[1] * 256 * 256 + bytes[2] * 256 + bytes[3];
            var text = HttpUtility.UrlEncode(idText);

            var key = HttpUtility.UrlEncode(Auth.GetKey());
            var request = WebRequest.Create($"https://lanyi.altervista.org/playertable/playertable.php?do=setIP&ip={ipNum}&id={text}&key={key}");
            using var response = await request.GetResponseAsync().ConfigureAwait(false);
            using var stream = response.GetResponseStream();
            return await DeserializeAsync<bool>(stream).ConfigureAwait(false);
        }

        private async void OnIpFieldChanged(object sender, System.Windows.Controls.TextChangedEventArgs e)
        {
            var ipText = _ipField.Text;
            var idText = _idField.Text;
            await Display(ipText, idText);
        }

        private void DataGrid_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {

        }
    }
}