using System.IO;
using System.Runtime.InteropServices.ComTypes;

namespace SpaceEngineersBlueprintEditor.Installer.Utilities;

public static class FileHelper
{
    public static string[] RootPath { get; set; } = [@"C:\", @"D:\", @"E:\", @"F:\", @"G:\", @"H:\", @"I:\", @"J:\", @"K:\", @"L:\", @"M:\", @"N:\", @"O:\", @"P:\", @"Q:\", @"R:\", @"S:\", @"T:\", @"U:\", @"V:\", @"W:\", @"X:\", @"Y:\", @"Z:\",];
    public static long GetDirectorySize(DirectoryInfo directoryInfo)
    {
        long size = 0;
        FileInfo[] files = directoryInfo.GetFiles();
        foreach (FileInfo file in files)
        {
            size += file.Length;
        }
        DirectoryInfo[] directories = directoryInfo.GetDirectories();
        foreach (DirectoryInfo directory in directories)
        {
            size += GetDirectorySize(directory);
        }
        return size;
    }

    public static bool IsRootPath(string path) => RootPath.Any(rootPath => rootPath == path);

    public static bool CreateShortCut(string linkFilePath, string targetPath, string? arguments = null,
        string? description = null, string? iconLocation = null, string? workingDirectory = null)
    {
        var info = new LinkFileInfo(targetPath, arguments, description, iconLocation)
        {
            WorkingDirectory = workingDirectory
        };
        return Write(linkFilePath, info, false);
    }

    private static bool Write(string linkFilePath, LinkFileInfo info, bool useExistsFile)
    {
        bool isSuccessful = false;
        try
        {
            var shortcut = (IShellLink)new ShellLink();
            var persistFile = shortcut as IPersistFile;
            if (useExistsFile && System.IO.File.Exists(linkFilePath)) LoadPersistFile(persistFile, linkFilePath);

            if (info.Arguments != null) shortcut.SetArguments(info.Arguments);
            if (info.Description != null) shortcut.SetDescription(info.Description);
            if (info.Hotkey != 0) shortcut.SetHotkey(info.Hotkey);
            if (info.IconLocation != null) shortcut.SetIconLocation(info.IconLocation, info.IconLocationID);
            if (info.TargetPath != null) shortcut.SetPath(info.TargetPath);
            if (info.WindowStyle != -1) shortcut.SetShowCmd(info.WindowStyle);
            if (info.WorkingDirectory != null) shortcut.SetWorkingDirectory(info.WorkingDirectory);

            persistFile?.Save(linkFilePath, false);
            isSuccessful = persistFile != null;
        }
        catch (Exception ex)
        {
            Console.WriteLine($"LinkFile write exception:  {ex}");
        }
        return isSuccessful;
    }

    private static void LoadPersistFile(IPersistFile? persistFile, string linkFilePath)
    {
        try
        {
            const int STGM_SHARE_DENY_NONE = 0x00000040;
            persistFile?.Load(linkFilePath, STGM_SHARE_DENY_NONE);
        }
        catch (Exception ex)
        {
            Console.WriteLine($"LinkFile load persist file exception: {ex}");
        }
    }
}