using MicaSetup.Helper;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Runtime.InteropServices;

namespace MicaSetup.Shell.Dialogs;

public static class KnownFolders
{
    public static ICollection<IKnownFolder> All => GetAllFolders();

    public static IKnownFolder CommonOemLinks => GetKnownFolder(FolderIdentifiers.CommonOEMLinks);

    public static IKnownFolder DeviceMetadataStore
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.DeviceMetadataStore);
        }
    }

    public static IKnownFolder DocumentsLibrary
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.DocumentsLibrary);
        }
    }

    public static IKnownFolder ImplicitAppShortcuts
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.ImplicitAppShortcuts);
        }
    }

    public static IKnownFolder Libraries
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.Libraries);
        }
    }

    public static IKnownFolder MusicLibrary
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.MusicLibrary);
        }
    }

    public static IKnownFolder OtherUsers
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.OtherUsers);
        }
    }

    public static IKnownFolder PicturesLibrary
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.PicturesLibrary);
        }
    }

    public static IKnownFolder PublicRingtones
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.PublicRingtones);
        }
    }

    public static IKnownFolder RecordedTVLibrary
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.RecordedTVLibrary);
        }
    }

    public static IKnownFolder Ringtones
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.Ringtones);
        }
    }

    public static IKnownFolder UserPinned
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.UserPinned);
        }
    }

    public static IKnownFolder UserProgramFiles
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.UserProgramFiles);
        }
    }

    public static IKnownFolder UserProgramFilesCommon
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.UserProgramFilesCommon);
        }
    }

    public static IKnownFolder UsersLibraries
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.UsersLibraries);
        }
    }

    public static IKnownFolder VideosLibrary
    {
        get
        {
            OsVersionHelper.ThrowIfNotWin7();
            return GetKnownFolder(FolderIdentifiers.VideosLibrary);
        }
    }

    public static IKnownFolder AddNewPrograms => GetKnownFolder(FolderIdentifiers.AddNewPrograms);

    public static IKnownFolder AdminTools => GetKnownFolder(FolderIdentifiers.AdminTools);

    public static IKnownFolder AppUpdates => GetKnownFolder(FolderIdentifiers.AppUpdates);

    public static IKnownFolder CDBurning => GetKnownFolder(FolderIdentifiers.CDBurning);

    public static IKnownFolder ChangeRemovePrograms => GetKnownFolder(FolderIdentifiers.ChangeRemovePrograms);

    public static IKnownFolder CommonAdminTools => GetKnownFolder(FolderIdentifiers.CommonAdminTools);

    public static IKnownFolder CommonPrograms => GetKnownFolder(FolderIdentifiers.CommonPrograms);

    public static IKnownFolder CommonStartMenu => GetKnownFolder(FolderIdentifiers.CommonStartMenu);

    public static IKnownFolder CommonStartup => GetKnownFolder(FolderIdentifiers.CommonStartup);

    public static IKnownFolder CommonTemplates => GetKnownFolder(FolderIdentifiers.CommonTemplates);

    public static IKnownFolder Computer => GetKnownFolder(
                FolderIdentifiers.Computer);

    public static IKnownFolder Conflict => GetKnownFolder(
                FolderIdentifiers.Conflict);

    public static IKnownFolder Connections => GetKnownFolder(
                FolderIdentifiers.Connections);

    public static IKnownFolder Contacts => GetKnownFolder(FolderIdentifiers.Contacts);

    public static IKnownFolder ControlPanel => GetKnownFolder(
                FolderIdentifiers.ControlPanel);

    public static IKnownFolder Cookies => GetKnownFolder(FolderIdentifiers.Cookies);

    public static IKnownFolder Desktop => GetKnownFolder(
                FolderIdentifiers.Desktop);

    public static IKnownFolder Documents => GetKnownFolder(FolderIdentifiers.Documents);

    public static IKnownFolder Downloads => GetKnownFolder(FolderIdentifiers.Downloads);

    public static IKnownFolder Favorites => GetKnownFolder(FolderIdentifiers.Favorites);

    public static IKnownFolder Fonts => GetKnownFolder(FolderIdentifiers.Fonts);

    public static IKnownFolder Games => GetKnownFolder(FolderIdentifiers.Games);

    public static IKnownFolder GameTasks => GetKnownFolder(FolderIdentifiers.GameTasks);

    public static IKnownFolder History => GetKnownFolder(FolderIdentifiers.History);

    public static IKnownFolder Internet => GetKnownFolder(
                FolderIdentifiers.Internet);

    public static IKnownFolder InternetCache => GetKnownFolder(FolderIdentifiers.InternetCache);

    public static IKnownFolder Links => GetKnownFolder(FolderIdentifiers.Links);

    public static IKnownFolder LocalAppData => GetKnownFolder(FolderIdentifiers.LocalAppData);

    public static IKnownFolder LocalAppDataLow => GetKnownFolder(FolderIdentifiers.LocalAppDataLow);

    public static IKnownFolder LocalizedResourcesDir => GetKnownFolder(FolderIdentifiers.LocalizedResourcesDir);

    public static IKnownFolder Music => GetKnownFolder(FolderIdentifiers.Music);

    public static IKnownFolder NetHood => GetKnownFolder(FolderIdentifiers.NetHood);

    public static IKnownFolder Network => GetKnownFolder(
                FolderIdentifiers.Network);

    public static IKnownFolder OriginalImages => GetKnownFolder(FolderIdentifiers.OriginalImages);

    public static IKnownFolder PhotoAlbums => GetKnownFolder(FolderIdentifiers.PhotoAlbums);

    public static IKnownFolder Pictures => GetKnownFolder(FolderIdentifiers.Pictures);

    public static IKnownFolder Playlists => GetKnownFolder(FolderIdentifiers.Playlists);

    public static IKnownFolder Printers => GetKnownFolder(
                FolderIdentifiers.Printers);

    public static IKnownFolder PrintHood => GetKnownFolder(FolderIdentifiers.PrintHood);

    public static IKnownFolder Profile => GetKnownFolder(FolderIdentifiers.Profile);

    public static IKnownFolder ProgramData => GetKnownFolder(FolderIdentifiers.ProgramData);

    public static IKnownFolder ProgramFiles => GetKnownFolder(FolderIdentifiers.ProgramFiles);

    public static IKnownFolder ProgramFilesCommon => GetKnownFolder(FolderIdentifiers.ProgramFilesCommon);

    public static IKnownFolder ProgramFilesCommonX64 => GetKnownFolder(FolderIdentifiers.ProgramFilesCommonX64);

    public static IKnownFolder ProgramFilesCommonX86 => GetKnownFolder(FolderIdentifiers.ProgramFilesCommonX86);

    public static IKnownFolder ProgramFilesX64 => GetKnownFolder(FolderIdentifiers.ProgramFilesX64);

    public static IKnownFolder ProgramFilesX86 => GetKnownFolder(FolderIdentifiers.ProgramFilesX86);

    public static IKnownFolder Programs => GetKnownFolder(FolderIdentifiers.Programs);

    public static IKnownFolder Public => GetKnownFolder(FolderIdentifiers.Public);

    public static IKnownFolder PublicDesktop => GetKnownFolder(FolderIdentifiers.PublicDesktop);

    public static IKnownFolder PublicDocuments => GetKnownFolder(FolderIdentifiers.PublicDocuments);

    public static IKnownFolder PublicDownloads => GetKnownFolder(FolderIdentifiers.PublicDownloads);

    public static IKnownFolder PublicGameTasks => GetKnownFolder(FolderIdentifiers.PublicGameTasks);

    public static IKnownFolder PublicMusic => GetKnownFolder(FolderIdentifiers.PublicMusic);

    public static IKnownFolder PublicPictures => GetKnownFolder(FolderIdentifiers.PublicPictures);

    public static IKnownFolder PublicVideos => GetKnownFolder(FolderIdentifiers.PublicVideos);

    public static IKnownFolder QuickLaunch => GetKnownFolder(FolderIdentifiers.QuickLaunch);

    public static IKnownFolder Recent => GetKnownFolder(FolderIdentifiers.Recent);

    public static IKnownFolder RecordedTV => GetKnownFolder(FolderIdentifiers.RecordedTV);

    public static IKnownFolder RecycleBin => GetKnownFolder(
                FolderIdentifiers.RecycleBin);

    public static IKnownFolder ResourceDir => GetKnownFolder(FolderIdentifiers.ResourceDir);

    public static IKnownFolder RoamingAppData => GetKnownFolder(FolderIdentifiers.RoamingAppData);

    public static IKnownFolder SampleMusic => GetKnownFolder(FolderIdentifiers.SampleMusic);

    public static IKnownFolder SamplePictures => GetKnownFolder(FolderIdentifiers.SamplePictures);

    public static IKnownFolder SamplePlaylists => GetKnownFolder(FolderIdentifiers.SamplePlaylists);

    public static IKnownFolder SampleVideos => GetKnownFolder(FolderIdentifiers.SampleVideos);

    public static IKnownFolder SavedGames => GetKnownFolder(FolderIdentifiers.SavedGames);

    public static IKnownFolder SavedSearches => GetKnownFolder(FolderIdentifiers.SavedSearches);

    public static IKnownFolder SearchCsc => GetKnownFolder(FolderIdentifiers.SearchCsc);

    public static IKnownFolder SearchHome => GetKnownFolder(FolderIdentifiers.SearchHome);

    public static IKnownFolder SearchMapi => GetKnownFolder(FolderIdentifiers.SearchMapi);

    public static IKnownFolder SendTo => GetKnownFolder(FolderIdentifiers.SendTo);

    public static IKnownFolder SidebarDefaultParts => GetKnownFolder(FolderIdentifiers.SidebarDefaultParts);

    public static IKnownFolder SidebarParts => GetKnownFolder(FolderIdentifiers.SidebarParts);

    public static IKnownFolder StartMenu => GetKnownFolder(FolderIdentifiers.StartMenu);

    public static IKnownFolder Startup => GetKnownFolder(FolderIdentifiers.Startup);

    public static IKnownFolder SyncManager => GetKnownFolder(
                FolderIdentifiers.SyncManager);

    public static IKnownFolder SyncResults => GetKnownFolder(
                FolderIdentifiers.SyncResults);

    public static IKnownFolder SyncSetup => GetKnownFolder(
                FolderIdentifiers.SyncSetup);

    public static IKnownFolder System => GetKnownFolder(FolderIdentifiers.System);

    public static IKnownFolder SystemX86 => GetKnownFolder(FolderIdentifiers.SystemX86);

    public static IKnownFolder Templates => GetKnownFolder(FolderIdentifiers.Templates);

    public static IKnownFolder TreeProperties => GetKnownFolder(FolderIdentifiers.TreeProperties);

    public static IKnownFolder UserProfiles => GetKnownFolder(FolderIdentifiers.UserProfiles);

    public static IKnownFolder UsersFiles => GetKnownFolder(FolderIdentifiers.UsersFiles);

    public static IKnownFolder Videos => GetKnownFolder(FolderIdentifiers.Videos);

    public static IKnownFolder Windows => GetKnownFolder(FolderIdentifiers.Windows);

    private static ReadOnlyCollection<IKnownFolder> GetAllFolders()
    {
        IList<IKnownFolder> foldersList = new List<IKnownFolder>();

        nint folders = 0;

        try
        {
            var knownFolderManager = new KnownFolderManagerClass();
            knownFolderManager.GetFolderIds(out folders, out var count);

            if (count > 0 && folders != 0)
            {
                for (var i = 0; i < count; i++)
                {
                    var current = new IntPtr((long)folders + (Marshal.SizeOf(typeof(Guid)) * i));

                    var knownFolderID = (Guid)Marshal.PtrToStructure(current, typeof(Guid));

                    var kf = KnownFolderHelper.FromKnownFolderIdInternal(knownFolderID);

                    if (kf != null) { foldersList.Add(kf); }
                }
            }
        }
        finally
        {
            if (folders != 0) { Marshal.FreeCoTaskMem(folders); }
        }

        return new ReadOnlyCollection<IKnownFolder>(foldersList);
    }

    private static IKnownFolder GetKnownFolder(Guid guid) => KnownFolderHelper.FromKnownFolderId(guid);
}