Add project files.

2021-10-28 14:02:13 +02:00
parent 7a9bc68a84
commit eff2281913
22 changed files with 1080 additions and 0 deletions
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31702.278
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WPFLinkTool", "WPFLinkTool\WPFLinkTool.csproj", "{F7A5BA83-57A5-40C8-87AB-14DC84AE7529}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F7A5BA83-57A5-40C8-87AB-14DC84AE7529}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F7A5BA83-57A5-40C8-87AB-14DC84AE7529}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F7A5BA83-57A5-40C8-87AB-14DC84AE7529}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F7A5BA83-57A5-40C8-87AB-14DC84AE7529}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {C28B0299-C112-4902-83AA-89612681ECEC}
+	EndGlobalSection
+EndGlobal
@@ -0,0 +1,36 @@
+<Window x:Class="WPFLinkTool.AddInstanceDialog"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WPFLinkTool"
+        mc:Ignorable="d"
+        Title="AddInstanceDialog" Height="250" Width="500"
+        WindowStartupLocation="CenterOwner">
+    <Border Margin="10">
+        <StackPanel>
+            <TextBlock IsEnabled="{Binding ElementName=CreateButton, Path=IsEnabled}" Text="Instance name"></TextBlock>
+            <TextBox Text="{Binding InstanceName}"></TextBox>
+            <TextBlock IsEnabled="{Binding ElementName=CreateButton, Path=IsEnabled}" Text="Data source path"></TextBlock>
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition></ColumnDefinition>
+                    <ColumnDefinition Width="100"></ColumnDefinition>
+                </Grid.ColumnDefinitions>
+                <TextBox Text="{Binding DataSource , Mode=TwoWay}"></TextBox>
+                <Button IsEnabled="{Binding ElementName=CreateButton, Path=IsEnabled}" Command="{Binding OpenBrowseDialog}" Grid.Column="1" Content="Browse..."></Button>
+            </Grid>
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition></ColumnDefinition>
+                    <ColumnDefinition></ColumnDefinition>
+                </Grid.ColumnDefinitions>
+                <RadioButton IsEnabled="{Binding ElementName=CreateButton, Path=IsEnabled}" Content="Move files" Grid.Column="0"></RadioButton>
+                <RadioButton IsEnabled="{Binding ElementName=CreateButton, Path=IsEnabled}" Content="Copy files" Grid.Column="1" IsChecked="{Binding IsCopyChecked}"></RadioButton>
+            </Grid>
+            <Button x:Name="CreateButton" Command="{Binding AddInstanceCommand}">Create instance</Button>
+            <TextBlock Text="{Binding StatusText}"></TextBlock>
+            <ProgressBar Height="30" Value="{Binding Progress}"></ProgressBar>
+        </StackPanel>
+    </Border>
+</Window>
@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace WPFLinkTool
+{
+    /// <summary>
+    /// Interaction logic for AddInstanceDialog.xaml
+    /// </summary>
+    public partial class AddInstanceDialog : Window
+    {
+        public AddInstanceDialog(SharedViewModel shared)
+        {
+            InitializeComponent();
+            DataContext = new AddInstanceViewModel(shared);
+        }
+    }
+}
@@ -0,0 +1,9 @@
+<Application x:Class="WPFLinkTool.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:WPFLinkTool"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace WPFLinkTool
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Xml;
+using System.Xml.Schema;
+using System.Xml.Serialization;
+using static WPFLinkTool.Global;
+
+namespace WPFLinkTool
+{
+    public class DBInfo
+    {
+        public List<DataInstance> InstanceList { get; set; }
+        public int InstanceCount => InstanceList.Count;
+        public long DBSize
+        {
+            get
+            {
+                long size = 0;
+                DirectoryInfo dir = new(dbDir);
+                foreach (var file in dir.GetFiles())
+                {
+                    size += file.Length;
+                }
+                return size;
+            }
+        }
+
+        public long IndividualSize
+        {
+            get
+            {
+                long size = 0;
+                foreach (DataInstance instance in InstanceList)
+                {
+                    size += instance.Size;
+                }
+                return size;
+
+            }
+        }
+
+        public DBInfo()
+        {
+            if (InstanceList == null)
+                InstanceList = new();
+        }
+
+        public void SaveToXml()
+        {
+            XmlSerializer serializer = new(typeof(DBInfo));
+            TextWriter writer = new StreamWriter(DBInfoPath);
+            serializer.Serialize(writer, this);
+        }
+        public void UpdateDBSize()
+        {
+            
+        }
+    }
+}
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using static WPFLinkTool.Global;
+
+namespace WPFLinkTool
+{
+    public class DataInstance
+    {
+        public string InstanceName { get; set; }
+        public List<InstanceFileInfo> InstanceFiles { get; set; }
+        public int Entries { get; set; }
+        public long Size { get; set; }
+        public string PrettySize => ReadableSize(Size);
+
+        public DataInstance(string name, List<InstanceFileInfo> fileInfos, int entries, long size)
+        {
+            InstanceName = name;
+            InstanceFiles = fileInfos;
+            Entries = entries;
+            Size = size;
+        }
+        
+        public DataInstance()
+        {
+
+        }
+    }
+}
@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using static WPFLinkTool.Global;
+
+namespace WPFLinkTool
+{
+    public class InstanceFileInfo
+    {
+        public string OriginalFileName { get; set; }
+        public string HashedFileName { get; set; }
+        public string Location { get; set; }
+        public long SizeBytes { get; set; }
+        public string PrettySize => ReadableSize(SizeBytes);
+
+        public InstanceFileInfo(string orgFName, string hashFName, string loc, long size)
+        {
+            OriginalFileName = orgFName;
+            HashedFileName = hashFName;
+            Location = loc;
+            SizeBytes = size;
+        }
+        public InstanceFileInfo()
+        {
+
+        }
+    }
+}
@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WPFLinkTool
+{
+    public class Global
+    {
+        //public static string curDir = @"F:\Torrents\bemaniso.ws\HardLinkUI";
+        //public static string curDir = @"C:\Tools and stuff\WPFLinkTool";
+        public static string curDir = Directory.GetCurrentDirectory();
+        public static string dbDir = curDir + @"\DB";
+        public static string xmlDir = curDir + @"\XML";
+        public static string DBInfoPath = curDir + @"\DBInfo.xml";
+
+        public static string ReadableSize(long size)
+        {
+            if (size < 1024f)
+            {
+                return $"{size} B";
+            }
+            if (size > 1024f && size < 1048576f)
+            {
+                return $"{Math.Round(size / 1024f, 2)} KB";
+            }
+            if (size > 1048576f && size < 1073741824f)
+            {
+                return $"{Math.Round(size / 1048576f, 2)} MB";
+            }
+            if (size > 1073741824f)
+            {
+                return $"{Math.Round(size / 1073741824f, 2)} GB";
+            }
+            else return "what?";
+        }
+    }
+
+
+}
@@ -0,0 +1,64 @@
+<Window x:Class="WPFLinkTool.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WPFLinkTool"
+        mc:Ignorable="d"
+        Title="MainWindow" Height="450" Width="500">
+    <Border Padding="10">
+        <StackPanel>
+
+            <Grid>
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition></ColumnDefinition>
+                    <ColumnDefinition></ColumnDefinition>
+                </Grid.ColumnDefinitions>
+                <TextBlock Grid.Column="0" Text="{Binding DBSize, StringFormat=DB size: {0}}"></TextBlock>
+                <TextBlock Grid.Column="1" Text="{Binding SumSize, StringFormat=Instance size sum: {0}}"></TextBlock>
+            </Grid>
+
+            <Grid Margin="0 2 0 2">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition></ColumnDefinition>
+                    <ColumnDefinition></ColumnDefinition>
+                    <ColumnDefinition></ColumnDefinition>
+                    <ColumnDefinition></ColumnDefinition>
+                </Grid.ColumnDefinitions>
+                <Button Command="{Binding OpenAddInstanceWindow}" Grid.Column="0">Add instance</Button>
+                <Button IsEnabled="{Binding LinkButtonEnabled}" Command="{Binding MakeHardLinksCommand}" Grid.Column="1">Make hard links</Button>
+                <Button IsEnabled="{Binding UIEnabled}" Command="{Binding DeleteUnusedCommand}" Grid.Column="2">Delete unused files</Button>
+                <Button IsEnabled="{Binding LinkButtonEnabled}" Command="{Binding DeleteInstanceCommand}" Grid.Column="3">Delete instance</Button>
+            </Grid>
+
+            <DockPanel MaxHeight="300" Margin="0 2 0 2">
+            <ScrollViewer VerticalScrollBarVisibility="Visible">
+                <ItemsControl ItemsSource="{Binding InstanceList}">
+                <ItemsControl.ItemTemplate>
+                        <DataTemplate>
+                            <Grid>
+                                <Grid.ColumnDefinitions>
+                                    <ColumnDefinition Width="16"></ColumnDefinition>
+                                    <ColumnDefinition></ColumnDefinition>
+                                    <ColumnDefinition></ColumnDefinition>
+                                    <ColumnDefinition></ColumnDefinition>
+                                    
+                                </Grid.ColumnDefinitions>
+                                <RadioButton  x:Name="RdioBtn" Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=Window}, Path=DataContext.SelectedInstanceCommand}" CommandParameter="{Binding ElementName=InstName, Path=Text}" Grid.Column="0" GroupName="InstanceGroup"></RadioButton>
+                                <TextBlock HorizontalAlignment="Center" x:Name="InstName" Grid.Column="1" Text="{Binding InstanceName}"></TextBlock>
+                                <TextBlock HorizontalAlignment="Center"  Grid.Column="2" Text="{Binding Entries, StringFormat={}{0} files}"></TextBlock>
+                                <TextBlock HorizontalAlignment="Center"  Grid.Column="3" Text="{Binding PrettySize}"></TextBlock>
+                            </Grid>
+                        </DataTemplate>
+                </ItemsControl.ItemTemplate>
+            </ItemsControl>
+            </ScrollViewer>
+            </DockPanel>
+
+            <ProgressBar Margin="0 2 0 2" Value="{Binding Progress}" MinHeight="20"></ProgressBar>
+
+            <TextBlock Text="{Binding HeaderText}"></TextBlock>
+            
+        </StackPanel>
+    </Border>
+</Window>
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Forms;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using WPFLinkTool;
+
+namespace WPFLinkTool
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+            SharedViewModel shared = new();
+            DataContext = new MainWindowViewModel(shared);
+        }
+    }
+}
@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Forms;
+
+namespace WPFLinkTool
+{
+    public class AddInstanceViewModel : ViewModelBase
+    {
+        public readonly SharedViewModel Shared;
+        public bool IsCopyChecked { get; set; } = true;
+        private double _progress;
+        public double Progress
+        {
+            get
+            {
+                return _progress;
+            }
+            set
+            {
+                _progress = value;
+                OnPropertyChanged(nameof(Progress));
+            }
+        }
+        public string InstanceName { get; set; }
+        public string DataSource { get; set; }
+        private string _statusText;
+        public string StatusText
+        {
+            get
+            {
+                return _statusText;
+            }
+            set
+            {
+                _statusText = value;
+                OnPropertyChanged(nameof(StatusText));
+            }
+        }
+
+        public RelayCommand CalculateFilesCommand { get; private set; }
+        public RelayCommand OpenBrowseDialog { get; private set; }
+        public ICommand AddInstanceCommand { get; }
+
+        public AddInstanceViewModel(SharedViewModel shared)
+        {
+            Shared = shared;
+            InstanceName = "";
+            DataSource = "";
+            OpenBrowseDialog = new(OpenFolderBrowser);
+            AddInstanceCommand = new AddInstanceCommand(this, (ex) => StatusText = ex.Message);
+        }
+
+        public void OpenFolderBrowser(object i)
+        {
+            FolderBrowserDialog dialog = new();
+            dialog.ShowDialog();
+            DataSource = dialog.SelectedPath;
+            OnPropertyChanged("DataSource");
+            dialog.Dispose();
+        }
+    }
+}
@@ -0,0 +1,111 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Windows;
+using static WPFLinkTool.Global;
+
+namespace WPFLinkTool
+{
+    public class AddInstanceCommand : AsyncCommandBase
+    {
+        private readonly AddInstanceViewModel vm;
+
+        public AddInstanceCommand(AddInstanceViewModel addInstanceViewModel, Action<Exception> onException) : base(onException)
+        {
+            vm = addInstanceViewModel;
+        }
+        
+        protected override async Task ExecuteAsync(object parameter)
+        {
+            if (vm.InstanceName != string.Empty && vm.DataSource != string.Empty && IsUniqueName(vm.InstanceName))
+            {
+                IsExecuting = true;
+                vm.Progress = 0;
+
+                // Create a list of InstanceFileInfos
+                List<InstanceFileInfo> fileInfos = new();
+                long instanceSize = 0;
+
+                // Enumerate files
+                vm.StatusText = "Enumerating files...";
+                DirectoryInfo dir = new(vm.DataSource);
+                var files = dir.EnumerateFiles("", SearchOption.AllDirectories);
+                int already = 0;
+
+                // Calculate progress step
+                double progressStep = 100D / files.Count();
+                
+                foreach (var file in files)
+                {
+                    // Hash and make file infos
+                    vm.StatusText = $"Hashing {file.FullName}";
+                    string hash = await Task.Run(() => GetMD5Checksum(file.FullName));
+                    InstanceFileInfo inFile = new(file.Name, hash + file.Extension,
+                        file.DirectoryName.Replace(vm.DataSource, ""), file.Length);
+                    instanceSize += file.Length;
+
+                    // Update the progress bar
+                    vm.Progress += progressStep;
+
+                    // Add file info to the list
+                    fileInfos.Add(inFile);
+
+                    // Check if file exists and move/copy
+                    if (!File.Exists(dbDir + @"\" + hash + file.Extension))
+                    {
+                        if (vm.IsCopyChecked)
+                        {
+                            vm.StatusText = $"Copying {file.Name}";
+                            await Task.Run(() => File.Copy(file.FullName, dbDir + @"\" + hash + file.Extension));
+                        }
+                        else
+                        {
+                            vm.StatusText = $"Moving {file.Name}";
+                            await Task.Run(() => File.Move(file.FullName, dbDir + @"\" + hash + file.Extension));
+                        }
+                    }
+                    else already++;
+                }
+                
+                // Create a DataInstance and add to DBInfo
+                DataInstance instance = new(vm.InstanceName, fileInfos, fileInfos.Count, instanceSize);
+                vm.Shared.Info.InstanceList.Add(instance);
+                vm.Shared.Info.SaveToXml();
+
+                vm.StatusText = $"Done. {instance.InstanceName} added with {instance.Entries} files and a size of {instance.PrettySize} \n" +
+                    $"{already} files already exist.";
+                IsExecuting = false;
+            }
+            else
+            {
+                MessageBox.Show("Empty fields or duplicate instance name.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
+        }
+        public string GetMD5Checksum(string filename)
+        {
+            using var md5 = MD5.Create();
+            using var stream = File.OpenRead(filename);
+            var hash = md5.ComputeHash(stream);
+            return BitConverter.ToString(hash).Replace("-", "");
+        }
+        public bool IsUniqueName(string instancename)
+        {
+            List<string> names = new();
+            List<string> namesAdd = new();
+            foreach (var instance in vm.Shared.Info.InstanceList)
+            {
+                names.Add(instance.InstanceName);
+            }
+            namesAdd = names;
+            namesAdd.Add(instancename);
+            if (names.Count == namesAdd.Distinct().Count())
+                return true;
+            else return false;
+        }
+    }
+}
@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace WPFLinkTool
+{
+    public abstract class AsyncCommandBase : ICommand
+    {
+        private readonly Action<Exception> _onException;
+
+        private bool _isExecuting;
+        public bool IsExecuting
+        {
+            get
+            {
+                return _isExecuting;
+            }
+            set
+            {
+                _isExecuting = value;
+                CanExecuteChanged?.Invoke(this, new EventArgs());
+            }
+        }
+
+        public event EventHandler CanExecuteChanged;
+
+        public AsyncCommandBase(Action<Exception> onException)
+        {
+            _onException = onException;
+        }
+
+        public bool CanExecute(object parameter)
+        {
+            return !IsExecuting;
+        }
+
+        public async void Execute(object parameter)
+        {
+            IsExecuting = true;
+
+            try
+            {
+                await ExecuteAsync(parameter);
+            }
+            catch (Exception ex)
+            {
+                _onException?.Invoke(ex);
+            }
+
+            IsExecuting = false;
+        }
+
+        protected abstract Task ExecuteAsync(object parameter);
+    }
+
+}
@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using static WPFLinkTool.Global;
+
+namespace WPFLinkTool
+{
+    class DeleteUnusedCommand : AsyncCommandBase
+    {
+        private readonly MainWindowViewModel vm;
+        
+        public DeleteUnusedCommand(MainWindowViewModel viewModel, Action<Exception> onException) : base(onException)
+        {
+            vm = viewModel;
+        }
+
+        protected override async Task ExecuteAsync(object parameter)
+        {
+            IsExecuting = true;
+            vm.UIEnabled = false;
+
+            HashSet<string> dBFiles = new();
+            DirectoryInfo dir = new(dbDir);
+            foreach (var file in dir.GetFiles())
+            {
+                dBFiles.Add(file.Name);
+            }
+
+            foreach (var instance in vm.Shared.Info.InstanceList)
+            {
+                foreach (var file in instance.InstanceFiles)
+                {
+                    dBFiles.Remove(file.HashedFileName);
+                }
+            }
+
+            double progressStep = 100D / dBFiles.Count;
+
+            var prompt = MessageBox.Show($"Found {dBFiles.Count} unused files. Delete?", "Delete unused files",
+                MessageBoxButtons.YesNo, MessageBoxIcon.Question);
+            if (prompt == DialogResult.Yes)
+            {
+                foreach (var file in dBFiles)
+                {
+                    await Task.Run(() => File.Delete(dbDir + @"\" + file));
+                    vm.Progress += progressStep;
+                }
+            }
+
+            await Task.Run(() => vm.UpdateDBSize());
+
+            vm.Progress = 0;
+            vm.UIEnabled = true;
+            IsExecuting = false;
+        }
+    }
+}
@@ -0,0 +1,84 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using static WPFLinkTool.Global;
+
+namespace WPFLinkTool
+{
+    public class MakeHardLinksCommand : AsyncCommandBase
+    {
+        private readonly MainWindowViewModel vm;
+        
+        public MakeHardLinksCommand(MainWindowViewModel viewmodel, Action<Exception> onException) : base(onException)
+        {
+            vm = viewmodel;   
+        }
+        
+        protected override async Task ExecuteAsync(object parameter)
+        {
+            IsExecuting = true;
+            vm.UIEnabled = false;
+            string selInst = vm.SelectedInstance;
+            var selectedInstance = (from inst in vm.Shared.Info.InstanceList
+                                   where inst.InstanceName == selInst
+                                   select inst).Single();
+            
+
+
+            var prompt = MessageBox.Show($"Creating hard links from {selectedInstance.InstanceName}.\nProceed to link target selection?", "Make hard links", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
+            if (prompt == DialogResult.Yes)
+            {
+                FolderBrowserDialog dialog = new();
+                if (dialog.ShowDialog() == DialogResult.OK)
+                {
+                    string target = dialog.SelectedPath;
+
+                    var uniqueFolders = (from folders in selectedInstance.InstanceFiles
+                                         where folders.Location != string.Empty
+                                         select folders.Location).Distinct();
+
+                    double progressStep = 100D / (selectedInstance.InstanceFiles.Count + uniqueFolders.Count());
+
+                    foreach (var folder in uniqueFolders)
+                    {
+                        if (!Directory.Exists(target + folder))
+                        {
+                            await Task.Run(() => Directory.CreateDirectory(target + folder));
+                        }
+                        vm.Progress += progressStep;
+                    }
+
+                    foreach (var file in selectedInstance.InstanceFiles)
+                    {
+                        if (!File.Exists(target + file.Location + @"\" + file.OriginalFileName))
+                        {
+                            await Task.Run(() => CreateHardLink(target + file.Location + @"\" + file.OriginalFileName,
+                                dbDir + @"\" + file.HashedFileName, IntPtr.Zero));
+                        }
+                        vm.Progress += progressStep;
+                    }
+                }
+            }
+            
+            vm.Progress = 0;
+
+
+
+            vm.UIEnabled = true;
+            IsExecuting = false;
+        }
+
+        [DllImport("Kernel32.dll", CharSet = CharSet.Unicode)]
+        static extern bool CreateHardLink(
+        string lpFileName,
+        string lpExistingFileName,
+        IntPtr lpSecurityAttributes
+        );
+    }
+}
@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace WPFLinkTool
+{
+    public class RelayCommand : ICommand
+    {
+        readonly Action<object> _execute;
+        readonly Predicate<object> _canExecute;
+
+        public RelayCommand(Action<object> execute, Predicate<object> canExecute)
+        {
+            if (execute == null)
+                throw new NullReferenceException("execute");
+            _execute = execute;
+            _canExecute = canExecute;
+        }
+
+        public RelayCommand(Action<object> execute) : this(execute, null)
+        {
+
+        }
+
+        public event EventHandler CanExecuteChanged
+        {
+            add { CommandManager.RequerySuggested += value; }
+            remove { CommandManager.RequerySuggested -= value; }
+        }
+
+        public bool CanExecute(object parameter)
+        {
+            return _canExecute == null ? true : _canExecute(parameter);
+        }
+
+        public void Execute(object parameter)
+        {
+            _execute.Invoke(parameter);
+        }
+    }
+}
@@ -0,0 +1,212 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Data;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using System.Windows.Input;
+using System.Xml;
+using System.Xml.Serialization;
+using static WPFLinkTool.Global;
+
+namespace WPFLinkTool
+{
+    public class MainWindowViewModel : ViewModelBase
+    {
+        public readonly SharedViewModel Shared;
+        private string _dBSize;
+        public string DBSize
+        {
+            get
+            {
+                return _dBSize;
+            }
+            set
+            {
+                _dBSize = value;
+                OnPropertyChanged(nameof(DBSize));
+            }
+        }
+        private string _sumSize;
+        public string SumSize
+        {
+            get
+            {
+                return _sumSize;
+            }
+            set
+            {
+                _sumSize = value;
+                OnPropertyChanged(nameof(SumSize));
+            }
+        }
+        private bool _linkButtonEnabled = false;
+        public bool LinkButtonEnabled
+        {
+            get
+            {
+                return _linkButtonEnabled;
+            }
+            set
+            {
+                _linkButtonEnabled = value;
+                OnPropertyChanged(nameof(LinkButtonEnabled));
+            }
+        }
+        private bool _uIEnabled = true;
+        public bool UIEnabled
+        {
+            get
+            {
+                return _uIEnabled;
+            }
+            set
+            {
+                _uIEnabled = value;
+                OnPropertyChanged(nameof(UIEnabled));
+            }
+        }
+        private double _progress;
+        public double Progress
+        {
+            get
+            {
+                return _progress;
+            }
+            set
+            {
+                _progress = value;
+                OnPropertyChanged(nameof(Progress));
+            }
+        }
+        private string _headerText;
+        public string HeaderText
+        {
+            get
+            {
+                return _headerText;
+            }
+            set
+            {
+                _headerText = value;
+                OnPropertyChanged(nameof(HeaderText));               
+            }
+        }
+        private string _selectedInstance;
+        public string SelectedInstance
+        {
+            get
+            {
+                return _selectedInstance;
+            }
+            set
+            {
+                _selectedInstance = value;
+                OnPropertyChanged(nameof(SelectedInstance));
+            }
+        }
+
+        public ObservableCollection<DataInstance> InstanceList
+        {
+            get
+            {
+                ObservableCollection<DataInstance> list = new();
+                foreach (var instance in Shared.Info.InstanceList)
+                {
+                    list.Add(instance);
+                }
+                return list;
+            }
+        }
+        public RelayCommand OpenAddInstanceWindow { get; private set; }
+        public RelayCommand SelectedInstanceCommand { get; private set; }
+        public RelayCommand DeleteInstanceCommand { get; private set; }
+        public ICommand MakeHardLinksCommand { get; private set; }
+        public ICommand DeleteUnusedCommand { get; private set; }
+
+        public MainWindowViewModel(SharedViewModel shared)
+        {
+            if (!Directory.Exists(dbDir))
+                Directory.CreateDirectory(dbDir);
+            Shared = shared;
+            OpenAddInstanceWindow = new(OpenInstanceWindow);
+            SelectedInstanceCommand = new(SetSelectedRadioButton);
+            DeleteInstanceCommand = new(DeleteInstance);
+            MakeHardLinksCommand = new MakeHardLinksCommand(this, (ex) => HeaderText = ex.Message);
+            DeleteUnusedCommand = new DeleteUnusedCommand(this, (ex) => HeaderText = ex.Message);
+            LoadDBInfo();
+            Task.Run(() => UpdateDBSize());
+            Task.Run(() => UpdateSumSize());
+        }
+
+        private void LoadDBInfo()
+        {
+            if (!File.Exists(DBInfoPath))
+            {
+                Shared.Info = new();
+            }
+            else
+            {
+                XmlSerializer serializer = new(typeof(DBInfo));
+                FileStream fs = new(DBInfoPath, FileMode.Open);
+                XmlReader reader = XmlReader.Create(fs);
+                Shared.Info = (DBInfo)serializer.Deserialize(reader);
+            }
+        }
+
+        public void OpenInstanceWindow(object o)
+        {
+            AddInstanceDialog dialog = new(Shared);
+            dialog.ShowDialog();
+            OnPropertyChanged(nameof(InstanceList));
+            LinkButtonEnabled = false;
+            Task.Run(() => UpdateDBSize());
+            Task.Run(() => UpdateSumSize());
+        }
+        
+        public void SetSelectedRadioButton(object o)
+        {
+            SelectedInstance = (string)o;
+            LinkButtonEnabled = true;
+        }
+
+        public void DeleteInstance(object o)
+        {
+            var prompt = MessageBox.Show($"Delete {SelectedInstance}?", "Delete instance", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
+            if (prompt == DialogResult.Yes)
+            {
+                DataInstance selected = (from inst in Shared.Info.InstanceList
+                                        where inst.InstanceName == SelectedInstance
+                                        select inst).Single();
+
+                Shared.Info.InstanceList.Remove(selected);
+                Shared.Info.SaveToXml();
+                LinkButtonEnabled = false;
+                UpdateSumSize();
+                OnPropertyChanged(nameof(InstanceList));
+            }
+        }
+        public void UpdateDBSize()
+        {
+            DirectoryInfo dir = new(dbDir);
+            long size = 0;
+            foreach (var file in dir.GetFiles())
+            {
+                size += file.Length;
+            }
+            DBSize = ReadableSize(size);
+        }
+        public void UpdateSumSize()
+        {
+            long size = 0;
+            foreach (var instance in Shared.Info.InstanceList)
+            {
+                size += instance.Size;
+            }
+            SumSize = ReadableSize(size);
+        }
+    }
+}
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WPFLinkTool
+{
+    public class SharedViewModel : ViewModelBase
+    {
+        private DBInfo _info;
+        public DBInfo Info
+        {
+            get
+            {
+                return _info;
+            }
+            set
+            {
+                _info = value;
+                OnPropertyChanged(nameof(Info));
+            }
+        }
+    }
+}
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Text;
+
+namespace WPFLinkTool
+{
+    public class ViewModelBase : INotifyPropertyChanged
+    {
+        public event PropertyChangedEventHandler PropertyChanged;
+        protected void OnPropertyChanged(string propertyName = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+	<UseWindowsForms>true</UseWindowsForms>
+  </PropertyGroup>
+
+</Project>