Add Qdrant as vector database (#580)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/Build/Commands/Database.cs

@@ -0,0 +1,3 @@
+namespace Build.Commands;
+
+public record Database(string Path, string Filename);

app/Build/Commands/Qdrant.cs

@@ -0,0 +1,120 @@
+using System.Formats.Tar;
+using System.IO.Compression;
+
+using SharedTools;
+
+namespace Build.Commands;
+
+public static class Qdrant
+{
+    public static async Task InstallAsync(RID rid, string version)
+    {
+        Console.Write($"- Installing Qdrant {version} for {rid.ToUserFriendlyName()} ...");
+
+        var cwd = Environment.GetRustRuntimeDirectory();
+        var qdrantTmpDownloadPath = Path.GetTempFileName();
+        var qdrantTmpExtractPath = Directory.CreateTempSubdirectory();
+        var qdrantUrl = GetQdrantDownloadUrl(rid, version);
+
+        //
+        // Download the file:
+        //
+        Console.Write(" downloading ...");
+        using (var client = new HttpClient())
+        {
+            var response = await client.GetAsync(qdrantUrl);
+            if (!response.IsSuccessStatusCode)
+            {
+                Console.WriteLine($" failed to download Qdrant {version} for {rid.ToUserFriendlyName()} from {qdrantUrl}");
+                return;
+            }
+
+            await using var fileStream = File.Create(qdrantTmpDownloadPath);
+            await response.Content.CopyToAsync(fileStream);
+        }
+        
+        //
+        // Extract the downloaded file:
+        //
+        Console.Write(" extracting ...");
+        await using(var zStream = File.Open(qdrantTmpDownloadPath, FileMode.Open, FileAccess.Read, FileShare.Read))
+        {
+            if (rid == RID.WIN_X64)
+            {
+                using var archive = new ZipArchive(zStream, ZipArchiveMode.Read);
+                archive.ExtractToDirectory(qdrantTmpExtractPath.FullName, overwriteFiles: true);
+            }
+            else
+            {
+                await using var uncompressedStream = new GZipStream(zStream, CompressionMode.Decompress);
+                await TarFile.ExtractToDirectoryAsync(uncompressedStream, qdrantTmpExtractPath.FullName, true);   
+            }
+        }
+        
+        //
+        // Copy the database to the target directory:
+        //
+        Console.Write(" deploying ...");
+        var database = GetDatabasePath(rid);
+        if (string.IsNullOrWhiteSpace(database.Path))
+        {
+            Console.WriteLine($" failed to find the database path for {rid.ToUserFriendlyName()}");
+            return;
+        }
+        
+        var qdrantDbSourcePath = Path.Join(qdrantTmpExtractPath.FullName, database.Path);
+        var qdrantDbTargetPath = Path.Join(cwd, "target", "databases", "qdrant",database.Filename);
+        if (!File.Exists(qdrantDbSourcePath))
+        {
+            Console.WriteLine($" failed to find the database file '{qdrantDbSourcePath}'");
+            return;
+        }
+        
+        Directory.CreateDirectory(Path.Join(cwd, "target", "databases", "qdrant"));
+        if (File.Exists(qdrantDbTargetPath))
+            File.Delete(qdrantDbTargetPath);
+        
+        File.Copy(qdrantDbSourcePath, qdrantDbTargetPath);
+        
+        //
+        // Cleanup:
+        //
+        Console.Write(" cleaning up ...");
+        File.Delete(qdrantTmpDownloadPath);
+        Directory.Delete(qdrantTmpExtractPath.FullName, true);
+        
+        Console.WriteLine(" done.");
+    }
+    
+    private static Database GetDatabasePath(RID rid) => rid switch
+    {
+        RID.OSX_ARM64 => new("qdrant", "qdrant-aarch64-apple-darwin"),
+        RID.OSX_X64 => new("qdrant", "qdrant-x86_64-apple-darwin"),
+        
+        RID.LINUX_ARM64 => new("qdrant", "qdrant-aarch64-unknown-linux-gnu"),
+        RID.LINUX_X64 => new("qdrant", "qdrant-x86_64-unknown-linux-gnu"),
+        
+        RID.WIN_X64 => new("qdrant.exe", "qdrant-x86_64-pc-windows-msvc.exe"),
+        RID.WIN_ARM64 => new("qdrant.exe", "qdrant-aarch64-pc-windows-msvc.exe"),
+        
+        _ => new(string.Empty, string.Empty),
+    };
+
+    private static string GetQdrantDownloadUrl(RID rid, string version)
+    {
+        var baseUrl = $"https://github.com/qdrant/qdrant/releases/download/v{version}/qdrant-";
+        return rid switch
+        {
+            RID.LINUX_ARM64 => $"{baseUrl}aarch64-unknown-linux-musl.tar.gz",
+            RID.LINUX_X64 => $"{baseUrl}x86_64-unknown-linux-gnu.tar.gz",
+            
+            RID.OSX_ARM64 => $"{baseUrl}aarch64-apple-darwin.tar.gz",
+            RID.OSX_X64 => $"{baseUrl}x86_64-apple-darwin.tar.gz",
+            
+            RID.WIN_X64 => $"{baseUrl}x86_64-pc-windows-msvc.zip",
+            RID.WIN_ARM64 => $"{baseUrl}x86_64-pc-windows-msvc.zip",
+            
+            _ => string.Empty,
+        };
+    }
+}

app/Build/Commands/UpdateMetadataCommands.cs

@@ -150,6 +150,9 @@ public sealed partial class UpdateMetadataCommands
         
         var pdfiumVersion = await this.ReadPdfiumVersion();
         await Pdfium.InstallAsync(rid, pdfiumVersion);
+
+        var qdrantVersion = await this.ReadQdrantVersion();
+        await Qdrant.InstallAsync(rid, qdrantVersion);
         
         Console.Write($"- Start .NET build for {rid.ToUserFriendlyName()} ...");
         await this.ReadCommandOutput(pathApp, "dotnet", $"clean --configuration release --runtime {rid.AsMicrosoftRid()}");
@@ -364,6 +367,16 @@ public sealed partial class UpdateMetadataCommands
         return shortVersion;
     }
 
+    private async Task<string> ReadQdrantVersion()
+    {
+        const int QDRANT_VERSION_INDEX = 11;
+        var pathMetadata = Environment.GetMetadataPath();
+        var lines = await File.ReadAllLinesAsync(pathMetadata, Encoding.UTF8);
+        var currentQdrantVersion = lines[QDRANT_VERSION_INDEX].Trim();
+        
+        return currentQdrantVersion;
+    }
+
     private async Task UpdateArchitecture(RID rid)
     {
         const int ARCHITECTURE_INDEX = 9;

app/MindWork AI Studio.sln.DotSettings

@@ -27,4 +27,6 @@
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=mime/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=mwais/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=ollama/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Qdrant/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=qdrant/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=tauri_0027s/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

app/MindWork AI Studio/Assistants/I18N/allTexts.lua

@@ -5011,9 +5011,15 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1282228996"] = "AI Studio runs w
 -- This library is used to read PDF files. This is necessary, e.g., for using PDFs as a data source for a chat.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1388816916"] = "This library is used to read PDF files. This is necessary, e.g., for using PDFs as a data source for a chat."
 
+-- Database version
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1420062548"] = "Database version"
+
 -- This library is used to extend the MudBlazor library. It provides additional components that are not part of the MudBlazor library.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1421513382"] = "This library is used to extend the MudBlazor library. It provides additional components that are not part of the MudBlazor library."
 
+-- Qdrant is a vector database and vector similarity search engine. We use it to realize local RAG—retrieval-augmented generation—within AI Studio. Thanks for the effort and great work that has been and is being put into Qdrant.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1619832053"] = "Qdrant is a vector database and vector similarity search engine. We use it to realize local RAG—retrieval-augmented generation—within AI Studio. Thanks for the effort and great work that has been and is being put into Qdrant."
+
 -- We use Lua as the language for plugins. Lua-CSharp lets Lua scripts communicate with AI Studio and vice versa. Thank you, Yusuke Nakada, for this great library.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T162898512"] = "We use Lua as the language for plugins. Lua-CSharp lets Lua scripts communicate with AI Studio and vice versa. Thank you, Yusuke Nakada, for this great library."
 
@@ -5050,6 +5056,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1924365263"] = "This library is
 -- We use Rocket to implement the runtime API. This is necessary because the runtime must be able to communicate with the user interface (IPC). Rocket is a great framework for implementing web APIs in Rust.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1943216839"] = "We use Rocket to implement the runtime API. This is necessary because the runtime must be able to communicate with the user interface (IPC). Rocket is a great framework for implementing web APIs in Rust."
 
+-- Copies the following to the clipboard
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2029659664"] = "Copies the following to the clipboard"
+
 -- Copies the server URL to the clipboard
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2037899437"] = "Copies the server URL to the clipboard"
 
@@ -5095,6 +5104,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2557066213"] = "Used Open Source
 -- Build time
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T260228112"] = "Build time"
 
+-- This library is used to create temporary folders for saving the certificate and private key for communication with Qdrant.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2619858133"] = "This library is used to create temporary folders for saving the certificate and private key for communication with Qdrant."
+
 -- This crate provides derive macros for Rust enums, which we use to reduce boilerplate when implementing string conversions and metadata for runtime types. This is helpful for the communication between our Rust and .NET systems.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2635482790"] = "This crate provides derive macros for Rust enums, which we use to reduce boilerplate when implementing string conversions and metadata for runtime types. This is helpful for the communication between our Rust and .NET systems."
 
@@ -5212,6 +5224,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T566998575"] = "This is a library
 -- Used .NET SDK
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T585329785"] = "Used .NET SDK"
 
+-- This library is used to manage sidecar processes and to ensure that stale or zombie sidecars are detected and terminated.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T633932150"] = "This library is used to manage sidecar processes and to ensure that stale or zombie sidecars are detected and terminated."
+
 -- Did you find a bug or are you experiencing issues? Report your concern here.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T639371534"] = "Did you find a bug or are you experiencing issues? Report your concern here."
 

app/MindWork AI Studio/MindWork AI Studio.csproj

@@ -52,6 +52,7 @@
       <PackageReference Include="Microsoft.Extensions.FileProviders.Embedded" Version="9.0.12" />
       <PackageReference Include="MudBlazor" Version="8.15.0" />
       <PackageReference Include="MudBlazor.Markdown" Version="8.11.0" />
+      <PackageReference Include="Qdrant.Client" Version="1.16.1" />
       <PackageReference Include="ReverseMarkdown" Version="5.0.0" />
       <PackageReference Include="LuaCSharp" Version="0.5.3" />
     </ItemGroup>
@@ -81,6 +82,7 @@
             <MetaAppCommitHash>$([System.String]::Copy( $(Metadata) ).Split( ';' )[ 8 ])</MetaAppCommitHash>
             <MetaArchitecture>$([System.String]::Copy( $(Metadata) ).Split( ';' )[ 9 ])</MetaArchitecture>
             <MetaPdfiumVersion>$([System.String]::Copy( $(Metadata) ).Split( ';' )[ 10 ])</MetaPdfiumVersion>
+            <MetaQdrantVersion>$([System.String]::Copy( $(Metadata) ).Split( ';' )[ 11 ])</MetaQdrantVersion>
             
             <GenerateAssemblyInfo>true</GenerateAssemblyInfo>
             
@@ -108,6 +110,9 @@
             <AssemblyAttribute Include="AIStudio.Tools.Metadata.MetaDataLibraries">
                 <_Parameter1>$(MetaPdfiumVersion)</_Parameter1>
             </AssemblyAttribute>
+            <AssemblyAttribute Include="AIStudio.Tools.Metadata.MetaDataDatabases">
+                <_Parameter1>$(MetaQdrantVersion)</_Parameter1>
+            </AssemblyAttribute>
         </ItemGroup>
         
     </Target>

app/MindWork AI Studio/Pages/Information.razor

@@ -19,6 +19,29 @@
                     <MudListItem T="string" Icon="@Icons.Material.Outlined.Build" Text="@this.VersionDotnetSdk"/>
                     <MudListItem T="string" Icon="@Icons.Material.Outlined.Memory" Text="@this.VersionDotnetRuntime"/>
                     <MudListItem T="string" Icon="@Icons.Material.Outlined.Build" Text="@this.VersionRust"/>
+                    <MudListItem T="string" Icon="@Icons.Material.Outlined.Storage">
+                        <MudText Typo="Typo.body1">
+                            @this.VersionDatabase
+                        </MudText>
+                        <MudCollapse Expanded="@showDatabaseDetails">
+                            <MudText Typo="Typo.body1" Class="mt-2 mb-2">
+                                @foreach (var item in this.databaseDisplayInfo)
+                                {
+                                    <div style="display: flex; align-items: center; gap: 8px;">
+                                        <MudIcon Icon="@Icons.Material.Filled.ArrowRightAlt"/>
+                                        <span>@item.Label: @item.Value</span>
+                                        <MudCopyClipboardButton TooltipMessage="@(T("Copies the following to the clipboard")+": "+item.Value)" StringContent=@item.Value/>
+                                    </div>
+                                }
+                            </MudText>
+                        </MudCollapse>
+                        <MudButton StartIcon="@(this.showDatabaseDetails ? Icons.Material.Filled.ExpandLess : Icons.Material.Filled.ExpandMore)"
+                                   Size="Size.Small"
+                                   Variant="Variant.Text"
+                                   OnClick="@this.ToggleDatabaseDetails">
+                            @(this.showDatabaseDetails ? T("Hide Details") : T("Show Details"))
+                        </MudButton>
+                    </MudListItem>
                     <MudListItem T="string" Icon="@Icons.Material.Outlined.DocumentScanner" Text="@this.VersionPdfium"/>
                     <MudListItem T="string" Icon="@Icons.Material.Outlined.Article" Text="@this.versionPandoc"/>
                     <MudListItem T="string" Icon="@Icons.Material.Outlined.Widgets" Text="@MudBlazorVersion"/>
@@ -194,6 +217,7 @@
                     <ThirdPartyComponent Name="CodeBeam.MudBlazor.Extensions" Developer="Mehmet Can Karagöz & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/CodeBeamOrg/CodeBeam.MudBlazor.Extensions/blob/dev/LICENSE" RepositoryUrl="https://github.com/CodeBeamOrg/CodeBeam.MudBlazor.Extensions" UseCase="@T("This library is used to extend the MudBlazor library. It provides additional components that are not part of the MudBlazor library.")"/>
                     <ThirdPartyComponent Name="Rust" Developer="Graydon Hoare, Rust Foundation, Rust developers & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/rust-lang/rust/blob/master/LICENSE-MIT" RepositoryUrl="https://github.com/rust-lang/rust" UseCase="@T("The .NET backend cannot be started as a desktop app. Therefore, I use a second backend in Rust, which I call runtime. With Rust as the runtime, Tauri can be used to realize a typical desktop app. Thanks to Rust, this app can be offered for Windows, macOS, and Linux desktops. Rust is a great language for developing safe and high-performance software.")"/>
                     <ThirdPartyComponent Name="Tauri" Developer="Daniel Thompson-Yvetot, Lucas Nogueira, Tensor, Boscop, Serge Zaitsev, George Burton & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/tauri-apps/tauri/blob/dev/LICENSE_MIT" RepositoryUrl="https://github.com/tauri-apps/tauri" UseCase="@T("Tauri is used to host the Blazor user interface. It is a great project that allows the creation of desktop applications using web technologies. I love Tauri!")"/>
+                    <ThirdPartyComponent Name="Qdrant" Developer="Andrey Vasnetsov, Tim Visée, Arnaud Gourlay, Luis Cossío, Ivan Pleshkov, Roman Titov, xzfc, JojiiOfficial & Open Source Community" LicenseName="Apache-2.0" LicenseUrl="https://github.com/qdrant/qdrant/blob/master/LICENSE" RepositoryUrl="https://github.com/qdrant/qdrant" UseCase="@T("Qdrant is a vector database and vector similarity search engine. We use it to realize local RAG—retrieval-augmented generation—within AI Studio. Thanks for the effort and great work that has been and is being put into Qdrant.")"/>
                     <ThirdPartyComponent Name="Rocket" Developer="Sergio Benitez & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/rwf2/Rocket/blob/master/LICENSE-MIT" RepositoryUrl="https://github.com/rwf2/Rocket" UseCase="@T("We use Rocket to implement the runtime API. This is necessary because the runtime must be able to communicate with the user interface (IPC). Rocket is a great framework for implementing web APIs in Rust.")"/>
                     <ThirdPartyComponent Name="serde" Developer="Erick Tryzelaar, David Tolnay & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/serde-rs/serde/blob/master/LICENSE-MIT" RepositoryUrl="https://github.com/serde-rs/serde" UseCase="@T("Now we have multiple systems, some developed in .NET and others in Rust. The data format JSON is responsible for translating data between both worlds (called data serialization and deserialization). Serde takes on this task in the Rust world. The counterpart in the .NET world is an integral part of .NET and is located in System.Text.Json.")"/>
                     <ThirdPartyComponent Name="strum_macros" Developer="Peter Glotfelty & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/Peternator7/strum/blob/master/LICENSE" RepositoryUrl="https://github.com/Peternator7/strum" UseCase="@T("This crate provides derive macros for Rust enums, which we use to reduce boilerplate when implementing string conversions and metadata for runtime types. This is helpful for the communication between our Rust and .NET systems.")"/>
@@ -214,6 +238,8 @@
                     <ThirdPartyComponent Name="PDFium" Developer="Lei Zhang, Tom Sepez, Dan Sinclair, and Foxit, Google, Chromium, Collabora, Ada, DocsCorp, Dropbox, Microsoft, and PSPDFKit Teams & Open Source Community" LicenseName="Apache-2.0" LicenseUrl="https://pdfium.googlesource.com/pdfium/+/refs/heads/main/LICENSE" RepositoryUrl="https://pdfium.googlesource.com/pdfium" UseCase="@T("This library is used to read PDF files. This is necessary, e.g., for using PDFs as a data source for a chat.")"/>
                     <ThirdPartyComponent Name="pdfium-render" Developer="Alastair Carey, Dorian Rudolph & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/ajrcarey/pdfium-render/blob/master/LICENSE.md" RepositoryUrl="https://github.com/ajrcarey/pdfium-render" UseCase="@T("This library is used to read PDF files. This is necessary, e.g., for using PDFs as a data source for a chat.")"/>
                     <ThirdPartyComponent Name="sys-locale" Developer="1Password Team, ComplexSpaces & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/1Password/sys-locale/blob/main/LICENSE-MIT" RepositoryUrl="https://github.com/1Password/sys-locale" UseCase="@T("This library is used to determine the language of the operating system. This is necessary to set the language of the user interface.")"/>
+                    <ThirdPartyComponent Name="sysinfo" Developer="Guillaume Gomez & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/GuillaumeGomez/sysinfo/blob/main/LICENSE" RepositoryUrl="https://github.com/GuillaumeGomez/sysinfo" UseCase="@T("This library is used to manage sidecar processes and to ensure that stale or zombie sidecars are detected and terminated.")"/>
+                    <ThirdPartyComponent Name="tempfile" Developer="Steven Allen, Ashley Mannix & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/Stebalien/tempfile/blob/master/LICENSE-MIT" RepositoryUrl="https://github.com/Stebalien/tempfile" UseCase="@T("This library is used to create temporary folders for saving the certificate and private key for communication with Qdrant.")"/>
                     <ThirdPartyComponent Name="Lua-CSharp" Developer="Yusuke Nakada & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/nuskey8/Lua-CSharp/blob/main/LICENSE" RepositoryUrl="https://github.com/nuskey8/Lua-CSharp" UseCase="@T("We use Lua as the language for plugins. Lua-CSharp lets Lua scripts communicate with AI Studio and vice versa. Thank you, Yusuke Nakada, for this great library.")" />
                     <ThirdPartyComponent Name="HtmlAgilityPack" Developer="ZZZ Projects & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/zzzprojects/html-agility-pack/blob/master/LICENSE" RepositoryUrl="https://github.com/zzzprojects/html-agility-pack" UseCase="@T("We use the HtmlAgilityPack to extract content from the web. This is necessary, e.g., when you provide a URL as input for an assistant.")"/>
                     <ThirdPartyComponent Name="ReverseMarkdown" Developer="Babu Annamalai & Open Source Community" LicenseName="MIT" LicenseUrl="https://github.com/mysticmind/reversemarkdown-net/blob/master/LICENSE" RepositoryUrl="https://github.com/mysticmind/reversemarkdown-net" UseCase="@T("This library is used to convert HTML to Markdown. This is necessary, e.g., when you provide a URL as input for an assistant.")"/>

app/MindWork AI Studio/Pages/Information.razor.cs

@@ -2,6 +2,7 @@ using System.Reflection;
 
 using AIStudio.Components;
 using AIStudio.Dialogs;
+using AIStudio.Tools.Databases;
 using AIStudio.Tools.Metadata;
 using AIStudio.Tools.PluginSystem;
 using AIStudio.Tools.Rust;
@@ -25,12 +26,16 @@ public partial class Information : MSGComponentBase
 
     [Inject]
     private ISnackbar Snackbar { get; init; } = null!;
-
+    
+    [Inject]
+    private DatabaseClient DatabaseClient { get; init; } = null!;
+    
     private static readonly Assembly ASSEMBLY = Assembly.GetExecutingAssembly();
     private static readonly MetaDataAttribute META_DATA = ASSEMBLY.GetCustomAttribute<MetaDataAttribute>()!;
     private static readonly MetaDataArchitectureAttribute META_DATA_ARCH = ASSEMBLY.GetCustomAttribute<MetaDataArchitectureAttribute>()!;
     private static readonly MetaDataLibrariesAttribute META_DATA_LIBRARIES = ASSEMBLY.GetCustomAttribute<MetaDataLibrariesAttribute>()!;
-
+    private static readonly MetaDataDatabasesAttribute META_DATA_DATABASES = ASSEMBLY.GetCustomAttribute<MetaDataDatabasesAttribute>()!;
+    
     private static string TB(string fallbackEN) => I18N.I.T(fallbackEN, typeof(Information).Namespace, nameof(Information));
 
     private string osLanguage = string.Empty;
@@ -53,6 +58,8 @@ public partial class Information : MSGComponentBase
     
     private string VersionPdfium => $"{T("Used PDFium version")}: v{META_DATA_LIBRARIES.PdfiumVersion}";
     
+    private string VersionDatabase => $"{T("Database version")}: {this.DatabaseClient.Name} v{META_DATA_DATABASES.DatabaseVersion}";
+    
     private string versionPandoc = TB("Determine Pandoc version, please wait...");
     private PandocInstallation pandocInstallation;
 
@@ -60,7 +67,13 @@ public partial class Information : MSGComponentBase
     
     private bool showEnterpriseConfigDetails;
 
+    private bool showDatabaseDetails;
+
     private IPluginMetadata? configPlug = PluginFactory.AvailablePlugins.FirstOrDefault(x => x.Type is PluginType.CONFIGURATION);
+    
+    private sealed record DatabaseDisplayInfo(string Label, string Value);
+
+    private readonly List<DatabaseDisplayInfo> databaseDisplayInfo = new();
 
     /// <summary>
     /// Determines whether the enterprise configuration has details that can be shown/hidden.
@@ -96,6 +109,11 @@ public partial class Information : MSGComponentBase
         this.osLanguage = await this.RustService.ReadUserLanguage();
         this.logPaths = await this.RustService.GetLogPaths();
         
+        await foreach (var (label, value) in this.DatabaseClient.GetDisplayInfo())
+        {
+            this.databaseDisplayInfo.Add(new DatabaseDisplayInfo(label, value));
+        }
+        
         // Determine the Pandoc version may take some time, so we start it here
         // without waiting for the result:
         _ = this.DeterminePandocVersion();
@@ -170,6 +188,11 @@ public partial class Information : MSGComponentBase
     {
         this.showEnterpriseConfigDetails = !this.showEnterpriseConfigDetails;
     }
+    
+    private void ToggleDatabaseDetails()
+    {
+        this.showDatabaseDetails = !this.showDatabaseDetails;
+    }
 
     private async Task CopyStartupLogPath()
     {

app/MindWork AI Studio/Plugins/languages/de-de-43065dbc-78d0-45b7-92be-f14c2926e2dc/plugin.lua

@@ -5013,9 +5013,15 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1282228996"] = "AI Studio läuft
 -- This library is used to read PDF files. This is necessary, e.g., for using PDFs as a data source for a chat.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1388816916"] = "Diese Bibliothek wird verwendet, um PDF-Dateien zu lesen. Das ist zum Beispiel notwendig, um PDFs als Datenquelle für einen Chat zu nutzen."
 
+-- Database version
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1420062548"] = "Datenbankversion"
+
 -- This library is used to extend the MudBlazor library. It provides additional components that are not part of the MudBlazor library.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1421513382"] = "Diese Bibliothek wird verwendet, um die MudBlazor-Bibliothek zu erweitern. Sie stellt zusätzliche Komponenten bereit, die nicht Teil der MudBlazor-Bibliothek sind."
 
+-- Qdrant is a vector database and vector similarity search engine. We use it to realize local RAG—retrieval-augmented generation—within AI Studio. Thanks for the effort and great work that has been and is being put into Qdrant.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1619832053"] = "Qdrant ist eine Vektordatenbank und Suchmaschine für Vektoren. Wir nutzen Qdrant, um lokales RAG (Retrieval-Augmented Generation) innerhalb von AI Studio zu realisieren. Vielen Dank für den Einsatz und die großartige Arbeit, die in Qdrant gesteckt wurde und weiterhin gesteckt wird."
+
 -- We use Lua as the language for plugins. Lua-CSharp lets Lua scripts communicate with AI Studio and vice versa. Thank you, Yusuke Nakada, for this great library.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T162898512"] = "Wir verwenden Lua als Sprache für Plugins. Lua-CSharp ermöglicht die Kommunikation zwischen Lua-Skripten und AI Studio in beide Richtungen. Vielen Dank an Yusuke Nakada für diese großartige Bibliothek."
 
@@ -5052,6 +5058,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1924365263"] = "Diese Bibliothek
 -- We use Rocket to implement the runtime API. This is necessary because the runtime must be able to communicate with the user interface (IPC). Rocket is a great framework for implementing web APIs in Rust.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1943216839"] = "Wir verwenden Rocket zur Implementierung der Runtime-API. Dies ist notwendig, da die Runtime mit der Benutzeroberfläche (IPC) kommunizieren muss. Rocket ist ein ausgezeichnetes Framework zur Umsetzung von Web-APIs in Rust."
 
+-- Copies the following to the clipboard
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2029659664"] = "Kopiert Folgendes in die Zwischenablage"
+
 -- Copies the server URL to the clipboard
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2037899437"] = "Kopiert die Server-URL in die Zwischenablage"
 
@@ -5097,6 +5106,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2557066213"] = "Verwendete Open-
 -- Build time
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T260228112"] = "Build-Zeit"
 
+-- This library is used to create temporary folders for saving the certificate and private key for communication with Qdrant.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2619858133"] = "Diese Bibliothek wird verwendet, um temporäre Ordner zu erstellen, in denen das Zertifikat und der private Schlüssel für die Kommunikation mit Qdrant gespeichert werden."
+
 -- This crate provides derive macros for Rust enums, which we use to reduce boilerplate when implementing string conversions and metadata for runtime types. This is helpful for the communication between our Rust and .NET systems.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2635482790"] = "Dieses Crate stellt Derive-Makros für Rust-Enums bereit, die wir verwenden, um Boilerplate zu reduzieren, wenn wir String-Konvertierungen und Metadaten für Laufzeittypen implementieren. Das ist hilfreich für die Kommunikation zwischen unseren Rust- und .NET-Systemen."
 
@@ -5214,6 +5226,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T566998575"] = "Dies ist eine Bib
 -- Used .NET SDK
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T585329785"] = "Verwendetes .NET SDK"
 
+-- This library is used to manage sidecar processes and to ensure that stale or zombie sidecars are detected and terminated.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T633932150"] = "Diese Bibliothek wird verwendet, um Sidecar-Prozesse zu verwalten und sicherzustellen, dass veraltete oder Zombie-Sidecars erkannt und beendet werden."
+
 -- Did you find a bug or are you experiencing issues? Report your concern here.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T639371534"] = "Haben Sie einen Fehler gefunden oder Probleme festgestellt? Melden Sie Ihr Anliegen hier."
 

app/MindWork AI Studio/Plugins/languages/en-us-97dfb1ba-50c4-4440-8dfa-6575daf543c8/plugin.lua

@@ -5013,9 +5013,15 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1282228996"] = "AI Studio runs w
 -- This library is used to read PDF files. This is necessary, e.g., for using PDFs as a data source for a chat.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1388816916"] = "This library is used to read PDF files. This is necessary, e.g., for using PDFs as a data source for a chat."
 
+-- Database version
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1420062548"] = "Database version"
+
 -- This library is used to extend the MudBlazor library. It provides additional components that are not part of the MudBlazor library.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1421513382"] = "This library is used to extend the MudBlazor library. It provides additional components that are not part of the MudBlazor library."
 
+-- Qdrant is a vector database and vector similarity search engine. We use it to realize local RAG—retrieval-augmented generation—within AI Studio. Thanks for the effort and great work that has been and is being put into Qdrant.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1619832053"] = "Qdrant is a vector database and vector similarity search engine. We use it to realize local RAG -— retrieval-augmented generation -— within AI Studio. Thanks for the effort and great work that has been and is being put into Qdrant."
+
 -- We use Lua as the language for plugins. Lua-CSharp lets Lua scripts communicate with AI Studio and vice versa. Thank you, Yusuke Nakada, for this great library.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T162898512"] = "We use Lua as the language for plugins. Lua-CSharp lets Lua scripts communicate with AI Studio and vice versa. Thank you, Yusuke Nakada, for this great library."
 
@@ -5052,6 +5058,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1924365263"] = "This library is
 -- We use Rocket to implement the runtime API. This is necessary because the runtime must be able to communicate with the user interface (IPC). Rocket is a great framework for implementing web APIs in Rust.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T1943216839"] = "We use Rocket to implement the runtime API. This is necessary because the runtime must be able to communicate with the user interface (IPC). Rocket is a great framework for implementing web APIs in Rust."
 
+-- Copies the following to the clipboard
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2029659664"] = "Copies the following to the clipboard"
+
 -- Copies the server URL to the clipboard
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2037899437"] = "Copies the server URL to the clipboard"
 
@@ -5097,6 +5106,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2557066213"] = "Used Open Source
 -- Build time
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T260228112"] = "Build time"
 
+-- This library is used to create temporary folders for saving the certificate and private key for communication with Qdrant.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2619858133"] = "This library is used to create temporary folders for saving the certificate and private key for communication with Qdrant."
+
 -- This crate provides derive macros for Rust enums, which we use to reduce boilerplate when implementing string conversions and metadata for runtime types. This is helpful for the communication between our Rust and .NET systems.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T2635482790"] = "This crate provides derive macros for Rust enums, which we use to reduce boilerplate when implementing string conversions and metadata for runtime types. This is helpful for the communication between our Rust and .NET systems."
 
@@ -5214,6 +5226,9 @@ UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T566998575"] = "This is a library
 -- Used .NET SDK
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T585329785"] = "Used .NET SDK"
 
+-- This library is used to manage sidecar processes and to ensure that stale or zombie sidecars are detected and terminated.
+UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T633932150"] = "This library is used to manage sidecar processes and to ensure that stale or zombie sidecars are detected and terminated."
+
 -- Did you find a bug or are you experiencing issues? Report your concern here.
 UI_TEXT_CONTENT["AISTUDIO::PAGES::INFORMATION::T639371534"] = "Did you find a bug or are you experiencing issues? Report your concern here."
 

app/MindWork AI Studio/Program.cs

@@ -1,5 +1,7 @@
 using AIStudio.Agents;
 using AIStudio.Settings;
+using AIStudio.Tools.Databases;
+using AIStudio.Tools.Databases.Qdrant;
 using AIStudio.Tools.PluginSystem;
 using AIStudio.Tools.Services;
 
@@ -24,6 +26,7 @@ internal sealed class Program
     public static string API_TOKEN = null!;
     public static IServiceProvider SERVICE_PROVIDER = null!;
     public static ILoggerFactory LOGGER_FACTORY = null!;
+    public static DatabaseClient DATABASE_CLIENT = null!;
     
     public static async Task Main()
     {
@@ -82,6 +85,39 @@ internal sealed class Program
             return;
         }
         
+        var qdrantInfo = await rust.GetQdrantInfo();
+        if (qdrantInfo.Path == string.Empty)
+        {
+            Console.WriteLine("Error: Failed to get the Qdrant path from Rust.");
+            return;
+        }
+        
+        if (qdrantInfo.PortHttp == 0)
+        {
+            Console.WriteLine("Error: Failed to get the Qdrant HTTP port from Rust.");
+            return;
+        }
+
+        if (qdrantInfo.PortGrpc == 0)
+        {
+            Console.WriteLine("Error: Failed to get the Qdrant gRPC port from Rust.");
+            return;
+        }
+
+        if (qdrantInfo.Fingerprint == string.Empty)
+        {
+            Console.WriteLine("Error: Failed to get the Qdrant fingerprint from Rust.");
+            return;
+        }
+        
+        if (qdrantInfo.ApiToken == string.Empty)
+        {
+            Console.WriteLine("Error: Failed to get the Qdrant API token from Rust.");
+            return;
+        }
+
+        var databaseClient = new QdrantClientImplementation("Qdrant", qdrantInfo.Path, qdrantInfo.PortHttp, qdrantInfo.PortGrpc, qdrantInfo.Fingerprint, qdrantInfo.ApiToken);
+        
         var builder = WebApplication.CreateBuilder();
         builder.WebHost.ConfigureKestrel(kestrelServerOptions =>
         {
@@ -133,6 +169,7 @@ internal sealed class Program
         builder.Services.AddHostedService<UpdateService>();
         builder.Services.AddHostedService<TemporaryChatService>();
         builder.Services.AddHostedService<EnterpriseEnvironmentService>();
+        builder.Services.AddSingleton<DatabaseClient>(databaseClient);
         builder.Services.AddHostedService<GlobalShortcutService>();
         builder.Services.AddHostedService<RustAvailabilityMonitorService>();
         
@@ -191,6 +228,10 @@ internal sealed class Program
 
         RUST_SERVICE = rust;
         ENCRYPTION = encryption;
+        
+        var databaseLogger = app.Services.GetRequiredService<ILogger<DatabaseClient>>();
+        databaseClient.SetLogger(databaseLogger);
+        DATABASE_CLIENT = databaseClient;
 
         programLogger.LogInformation("Initialize internal file system.");
         app.Use(Redirect.HandlerContentAsync);
@@ -228,6 +269,7 @@ internal sealed class Program
         await serverTask;
         
         RUST_SERVICE.Dispose();
+        DATABASE_CLIENT.Dispose();
         PluginFactory.Dispose();
         programLogger.LogInformation("The AI Studio server was stopped.");
     }

app/MindWork AI Studio/Tools/Databases/DatabaseClient.cs

@@ -0,0 +1,52 @@
+namespace AIStudio.Tools.Databases;
+
+public abstract class DatabaseClient(string name, string path)
+{
+    public string Name => name;
+    
+    private string Path => path;
+    
+    protected ILogger<DatabaseClient>? logger;
+    
+    public abstract IAsyncEnumerable<(string Label, string Value)> GetDisplayInfo();
+
+    public string GetStorageSize()
+    {
+        if (string.IsNullOrWhiteSpace(this.Path))
+        {
+            this.logger!.LogError($"Error: Database path '{this.Path}' cannot be null or empty.");
+            return "0 B";
+        }
+
+        if (!Directory.Exists(this.Path))
+        {
+            this.logger!.LogError($"Error: Database path '{this.Path}' does not exist.");
+            return "0 B";
+        }
+        var files = Directory.EnumerateFiles(this.Path, "*", SearchOption.AllDirectories)
+            .Where(file => !System.IO.Path.GetDirectoryName(file)!.Contains("cert", StringComparison.OrdinalIgnoreCase));
+        var size = files.Sum(file => new FileInfo(file).Length);
+        return FormatBytes(size);
+    }
+    
+    public static string FormatBytes(long size)
+    {
+        string[] suffixes = { "B", "KB", "MB", "GB", "TB", "PB" };
+        int suffixIndex = 0;
+    
+        while (size >= 1024 && suffixIndex < suffixes.Length - 1)
+        {
+            size /= 1024;
+            suffixIndex++;
+        }
+    
+        return $"{size:0##} {suffixes[suffixIndex]}";
+    }
+    
+    public void SetLogger(ILogger<DatabaseClient> logService)
+    {
+        this.logger = logService;
+    }
+
+    public abstract void Dispose();
+}

app/MindWork AI Studio/Tools/Databases/Qdrant/QdrantClientImplementation.cs

@@ -0,0 +1,66 @@
+using Qdrant.Client;
+using Qdrant.Client.Grpc;
+
+namespace AIStudio.Tools.Databases.Qdrant;
+
+public class QdrantClientImplementation : DatabaseClient
+{
+    private int HttpPort { get; }
+    
+    private int GrpcPort { get; }
+    
+    private QdrantClient GrpcClient { get; }
+    
+    private string Fingerprint { get; }
+    
+    private string ApiToken { get; }
+    
+    public QdrantClientImplementation(string name, string path, int httpPort, int grpcPort, string fingerprint, string apiToken): base(name, path)
+    {
+        this.HttpPort = httpPort;
+        this.GrpcPort = grpcPort;
+        this.Fingerprint = fingerprint;
+        this.ApiToken = apiToken;
+        this.GrpcClient = this.CreateQdrantClient();
+    }
+    
+    private const string IP_ADDRESS = "localhost";
+    
+    public QdrantClient CreateQdrantClient()
+    {
+        var address = "https://" + IP_ADDRESS + ":" + this.GrpcPort;
+        var channel = QdrantChannel.ForAddress(address, new ClientConfiguration
+        {
+            ApiKey = this.ApiToken,
+            CertificateThumbprint = this.Fingerprint
+        });
+        var grpcClient = new QdrantGrpcClient(channel);
+        return new QdrantClient(grpcClient);
+    }
+
+    public async Task<string> GetVersion()
+    {
+        var operation =  await this.GrpcClient.HealthAsync();
+        return "v"+operation.Version;
+    }
+
+    public async Task<string> GetCollectionsAmount()
+    {
+        var operation = await this.GrpcClient.ListCollectionsAsync();
+        return operation.Count.ToString();
+    }
+    
+    public override async IAsyncEnumerable<(string Label, string Value)> GetDisplayInfo()
+    {
+        yield return ("HTTP port", this.HttpPort.ToString());
+        yield return ("gRPC port", this.GrpcPort.ToString());
+        yield return ("Extracted version", await this.GetVersion());
+        yield return ("Storage size", $"{base.GetStorageSize()}");
+        yield return ("Amount of collections", await this.GetCollectionsAmount());
+    }
+
+    public override void Dispose()
+    {
+        this.GrpcClient.Dispose();
+    }
+}

app/MindWork AI Studio/Tools/Metadata/MetaDataDatabasesAttribute.cs

@@ -0,0 +1,6 @@
+namespace AIStudio.Tools.Metadata;
+
+public class MetaDataDatabasesAttribute(string databaseVersion) : Attribute
+{
+    public string DatabaseVersion => databaseVersion;
+}

app/MindWork AI Studio/Tools/Rust/QdrantInfo.cs

@@ -0,0 +1,17 @@
+namespace AIStudio.Tools.Rust;
+
+/// <summary>
+/// The response of the Qdrant information request.
+/// </summary>
+public readonly record struct QdrantInfo
+{
+    public string Path { get; init; }
+    
+    public int PortHttp { get; init; }
+    
+    public int PortGrpc { get; init; }
+    
+    public string Fingerprint { get; init; }
+    
+    public string ApiToken { get; init; }
+}

app/MindWork AI Studio/Tools/Services/RustService.Databases.cs

@@ -0,0 +1,25 @@
+using AIStudio.Tools.Rust;
+
+namespace AIStudio.Tools.Services;
+
+public sealed partial class RustService
+{
+    public async Task<QdrantInfo> GetQdrantInfo()
+    {
+        try
+        {
+            var cts = new CancellationTokenSource(TimeSpan.FromSeconds(45));
+            var response = await this.http.GetFromJsonAsync<QdrantInfo>("/system/qdrant/info", this.jsonRustSerializerOptions, cts.Token);
+            return response;
+        }
+        catch (Exception e)
+        {
+            if(this.logger is not null)
+                this.logger.LogError(e, "Error while fetching Qdrant info from Rust service.");
+            else
+                Console.WriteLine($"Error while fetching Qdrant info from Rust service: '{e}'.");
+            
+            return default;
+        }
+    }
+}

app/MindWork AI Studio/wwwroot/changelog/v26.2.2.md

@@ -1 +1,2 @@
 # v26.2.2, build 234 (2026-02-xx xx:xx UTC)
+- Added a vector database (Qdrant) as a building block for our local RAG (retrieval-augmented generation) solution. Thank you very much, Paul (`PaulKoudelka`), for this major contribution. Note that our local RAG implementation remained in preview and has not yet been released; other building blocks are not yet ready.