using AIK.Common.Interface;
using AIK.Common.Models;
using AIK.Common.SysCommon;
using AIK.Service.IService;
using AIK.Views.UpdatePages;
using AutoUpdaterDotNET;
using HidSharp.Utility;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Http;
using System.Reflection;
using System.Security;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Xml;

namespace AIKKey.Infrastructure
{
    public class UpdateService : IUpdateService
    {
        private readonly IAikDataService _aikDataService;
        public UpdateService(IAikDataService aikDataService)
        {
            _aikDataService = aikDataService;
        }
        public async Task<UpdateProgressDto> CheckForUpdateAsync()
        {
            try
            {
                // 1. 获取当前版本
                var currentVersionStr = Assembly.GetEntryAssembly()?
                    .GetName().Version?.ToString();
                var currentShortVersionStr = ToShortVersionString(Version.Parse(currentVersionStr));
                var currentVersion = Version.Parse(currentShortVersionStr);
                var updateinfo = await _aikDataService.GetAppVersionInfo(WebApiAddress.PCZipType);
                if (updateinfo == null) return new UpdateProgressDto
                {
                    IsAvailable = false,
                    CurrentVersion = currentShortVersionStr,
                    LatestVersion = string.Empty,
                    Status = "获取服务器版本数据失败",
                    HasError = true,
                    DownloadUrl = string.Empty // 可选：传递下载地址
                }; ;
                var versionName = updateinfo.VersionName; // e.g. "v1.2.8"
                var fileUrl = updateinfo.FileUrl;
                var force = updateinfo.Force;
                var versionCode = int.Parse(updateinfo.VersionCode.Replace(".", "")); // 用于比较


                // 移除 "v" 前缀并确保是合法 Version
                var cleanVersionStr = updateinfo.VersionCode?.TrimStart('v', 'V') ?? "1.0.0";
                if (!Version.TryParse(cleanVersionStr, out var latestVersion))
                    latestVersion = new Version(versionCode, 0, 0); // fallback to versionCode

                bool isUpdateAvailable = latestVersion > currentVersion;

                return new UpdateProgressDto
                {
                    IsAvailable = isUpdateAvailable,
                    CurrentVersion = currentShortVersionStr,
                    LatestVersion = latestVersion.ToString(),
                    Status = updateinfo.VersionContent,
                    HasError = false,
                    DownloadUrl = updateinfo.FileUrl // 可选：传递下载地址
                };
            }
            catch (Exception ex)
            {
                return new UpdateProgressDto
                {
                    IsAvailable = false,
                    Status = "Failed to check for updates",
                    HasError = true,
                    ErrorMessage = ex.Message
                };
            }
        }

        private string ToShortVersionString(Version version)
        {
            if (version == null) return "0.0";

            string v = version.ToString();
            // 移除尾部的 ".0"，但至少保留 x.x
            while (v.EndsWith(".0") && v.Count(c => c == '.') > 1)
            {
                v = v.Substring(0, v.LastIndexOf('.'));
            }
            return v;
        }
        /// <summary>
        /// 启动 AutoUpdater 的完整更新流程（使用同一个 XML）
        /// </summary>
        public async Task StartUpdateProcess()
        {
            // 1. 先获取最新版本信息
            var updateInfo = await CheckForUpdateAsync();
            if (!updateInfo.IsAvailable) return;

            // 2. 构造 AutoUpdater.NET 能识别的 XML
            string xmlContent = $@"<?xml version=""1.0"" encoding=""UTF-8""?>
<item>
  <version>{SecurityElement.Escape(updateInfo.LatestVersion)}</version>
  <url>{SecurityElement.Escape(updateInfo.DownloadUrl)}</url>
  <mandatory>false</mandatory>
</item>";
            // 创建临时 XML 文件
            string tempXmlPath = Path.Combine(Path.GetTempPath(), "AIK_Update_Info.xml");
            File.WriteAllText(tempXmlPath, xmlContent, Encoding.UTF8);
            AutoUpdaterDotNET.AutoUpdater.AppTitle = "AIKKey";
            AutoUpdaterDotNET.AutoUpdater.Mandatory = false;
            AutoUpdaterDotNET.AutoUpdater.ShowSkipButton = false;
            AutoUpdaterDotNET.AutoUpdater.ShowRemindLaterButton = false;
            AutoUpdaterDotNET.AutoUpdater.OpenDownloadPage = false;
            AutoUpdaterDotNET.AutoUpdater.ReportErrors = true;

            string fileUri = new Uri(tempXmlPath).AbsoluteUri;

            // 使用相同的 XML URL
            AutoUpdaterDotNET.AutoUpdater.Start(fileUri);
        }

        public async Task<UpdateInfoResult> GetUpdateInfoAsync()
        {
            try
            {
                var currentVersionStr = Assembly.GetEntryAssembly()?.GetName().Version?.ToString();
                var currentShortVersionStr = ToShortVersionString(Version.Parse(currentVersionStr));
                var currentVersion = Version.Parse(currentShortVersionStr);

                var updateinfo = await _aikDataService.GetAppVersionInfo(WebApiAddress.PCZipType);
                if (updateinfo == null) return new UpdateInfoResult { IsUpdateAvailable = false };

                var cleanVersionStr = updateinfo.VersionCode?.TrimStart('v', 'V') ?? "1.0.0";
                if (!Version.TryParse(cleanVersionStr, out var latestVersion))
                    latestVersion = new Version(1, 0, 0);

                bool isUpdateAvailable = latestVersion > currentVersion;

                return new UpdateInfoResult
                {
                    VersionEnContent = updateinfo.VersionEnContent ?? "",
                    VersionContent = updateinfo.VersionContent ?? "",
                    IsUpdateAvailable = isUpdateAvailable,
                    LatestVersion = latestVersion.ToString(),
                    CurrentVersion = currentShortVersionStr,
                    DownloadUrl = updateinfo.FileUrl,
                    ChangeLog = updateinfo.VersionContent ?? "",
                    IsMandatory = updateinfo.Force // 假设 Force 字段代表强制更新
                };
            }
            catch (Exception)
            {
                return new UpdateInfoResult { IsUpdateAvailable = false };
            }
        }

        public async Task CheckForUpdate()
        {
            var result = await GetUpdateInfoAsync();
            if (result.IsUpdateAvailable)
            {
                // 构造 AutoUpdater.NET 能识别的 XML
                string xmlContent = $@"<?xml version=""1.0"" encoding=""UTF-8""?>
<item>
  <version>{SecurityElement.Escape(result.LatestVersion)}</version>
  <url>{SecurityElement.Escape(result.DownloadUrl)}</url>
  <mandatory>true</mandatory>
</item>";
                // 创建临时 XML 文件
                string tempXmlPath = Path.Combine(Path.GetTempPath(), "AIK_Update_Info.xml");
                File.WriteAllText(tempXmlPath, xmlContent, Encoding.UTF8);
                AutoUpdaterDotNET.AutoUpdater.AppTitle = "AIKKey";
                AutoUpdaterDotNET.AutoUpdater.Mandatory = true;
                AutoUpdater.UpdateMode = Mode.ForcedDownload;
                AutoUpdaterDotNET.AutoUpdater.ShowSkipButton = false;
                AutoUpdaterDotNET.AutoUpdater.ShowRemindLaterButton = false;
                AutoUpdaterDotNET.AutoUpdater.OpenDownloadPage = false;
                AutoUpdaterDotNET.AutoUpdater.ReportErrors = true;

                string fileUri = new Uri(tempXmlPath).AbsoluteUri;
                if (result.IsMandatory)
                {
                    AutoUpdaterDotNET.AutoUpdater.Start(fileUri);
                    return; // 强制更新，直接返回
                }
                // 显示你的自定义窗口
                var customDialog = new UpdateWindow(result.LatestVersion, result.CurrentVersion,result.VersionContent,result.VersionEnContent);
                var dialogResult = customDialog.ShowDialog();

                // 根据用户在自定义窗口的选择决定是否开始更新
                if (dialogResult == true) // 用户点击了“立即更新”
                {
                    // 使用相同的 XML URL
                    AutoUpdaterDotNET.AutoUpdater.Start(fileUri);
                }
            }
            else
            {
                //MessageBox.Show("当前已是最新版本");
            }
        }
    }
}