using System;
using System.IO;
using System.Linq;
using System.Management;
using Vinno.FIS.Sonopost.Features.Oled;
using Vinno.FIS.Sonopost.Managers;
using Vinno.FIS.Sonopost.Managers.Interfaces;
using Vinno.IUS.Common.Log;

namespace Vinno.FIS.Sonopost.Helpers
{
    public class SystemHelper
    {
        private static IOledManager _oledManager;
        private const string BackupFileName = "Flyinsono_SonoPost_";
        private const string BackupFolderPath = @"C:\SonopostBackup";

        public static void Init()
        {
            _oledManager = AppManager.Instance.GetManager<IOledManager>();
        }

        /// <summary>
        /// 系统还原
        /// </summary>
        public static void RestoreSystem()
        {
            try
            {
                ManagementPath path = new ManagementPath(@"\\.\root\default:SystemRestore");
                ManagementClass mc = new ManagementClass(path);
                foreach (ManagementBaseObject item in mc.GetInstances())
                {
                    //CreationTime 创建时间
                    var creationTime = item.GetPropertyValue("CreationTime");
                    //Description 还原点名称(描述)
                    var description = item.GetPropertyValue("Description").ToString();
                    //EventType 默认：100
                    var eventType = item.GetPropertyValue("EventType");
                    //RestorePointType 值定义：16(手动)，18(关键更新)，0(安装)，1(应用卸载)，10(安装驱动)，12(控制面板添加删除)
                    var restorePointType = item.GetPropertyValue("RestorePointType");
                    //SequenceNumber
                    var sequenceNumber = item.GetPropertyValue("SequenceNumber");
                    Logger.WriteLineInfo($"CreateTime:{creationTime} Desctiption:{description} EventType:{eventType} RestorePointType:{restorePointType} SequenceNum:{sequenceNumber}");
                    if (description == "SonopostInstall")
                    {
                        Logger.WriteLineInfo("Start Restore!");
                        var result = mc.InvokeMethod("Restore", new object[] { sequenceNumber });
                        if (int.Parse(result.ToString()) == 0)
                        {
                            Logger.WriteLineInfo($"Restore State :{result}");
                            RebootSystem();
                        }
                        else
                        {
                            Logger.WriteLineInfo($"Restore Error State :{result}");
                            _oledManager.ShowStatus(OledMessage.Error);
                        }
                        return;
                    }
                }
                Logger.WriteLineInfo($"Restore Error:Didn't find the backUp file.");
                _oledManager.ShowStatus(OledMessage.Error);
            }
            catch (Exception e)
            {
                Logger.WriteLineError($"ResetSystem Error:{e}");
            }
        }

        /// <summary>
        /// 系统还原
        /// </summary>
        public static void ResetSystem()
        {
            try
            {
                if (!Directory.Exists(BackupFolderPath))
                {
                    Logger.WriteLineError($"ResetSystem Error:Backup Folder is Missing:{BackupFolderPath}");
                    _oledManager.ShowStatus(OledMessage.Error);
                    return;
                }
                var backupFile = Directory.GetFiles(BackupFolderPath, BackupFileName + "*.zip", SearchOption.TopDirectoryOnly).FirstOrDefault();
                if (backupFile == null)
                {
                    Logger.WriteLineError($"ResetSystem Error:Backup File is Missing");
                    _oledManager.ShowStatus(OledMessage.Error);
                    return;
                }
                else
                {
                    Logger.WriteLineError($"Backup File Found:{backupFile}");
                    UpgradeHelper.StartUpgrade(backupFile, true, true);
                }
            }
            catch (Exception e)
            {
                Logger.WriteLineError($"ResetSystem Error:{e}");
                _oledManager.ShowStatus(OledMessage.Error);
            }
        }

        /// <summary>
        /// 重启操作系统
        /// </summary>
        public static void RebootSystem()
        {
            try
            {
                ConnectionOptions options = new ConnectionOptions();
                options.EnablePrivileges = true;
                ManagementScope scope = new ManagementScope(@"\\.\root\cimv2", options);
                scope.Connect();

                //Query system for Operating System information
                ObjectQuery query = new ObjectQuery("SELECT * FROM Win32_OperatingSystem");
                ManagementObjectSearcher searcher = new ManagementObjectSearcher(scope, query);
                foreach (ManagementObject m in searcher.Get())
                {
                    // reboot system
                    uint ret = (uint)m.InvokeMethod("Reboot", null);
                    if (ret != 0)
                    {
                        Logger.WriteLineError("Reboot System Error!");
                    }
                }
            }
            catch (Exception e)
            {
                Logger.WriteLineError($"Reboot System Error:{e}");
            }
        }

        /// <summary>
        /// get disk free space， unit GB
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public static long GetHardDiskFreeSpace(string path)
        {
            long totalSize = 0;
            var rootPath = Path.GetPathRoot(path);

            DriveInfo[] drives = DriveInfo.GetDrives();
            foreach (DriveInfo drive in drives)
            {
                if (drive.Name == rootPath)
                {
                    totalSize = drive.TotalFreeSpace / (1024 * 1024 * 1024);
                    break;
                }
            }
            return totalSize;
        }
    }
}