Added the "attach documents" component

app/MindWork AI Studio/Assistants/DocumentAnalysis/DocumentAnalysisAssistant.razor

@@ -68,6 +68,6 @@ else
     </ExpansionPanel>
     
     <ExpansionPanel HeaderIcon="@Icons.Material.Filled.DocumentScanner" HeaderText="@(T("Document analysis") + $": {this.selectedPolicy?.PolicyName}")" IsExpanded="@(this.selectedPolicy?.IsProtected ?? false)">
-        TODO
+        <AttachDocuments @bind-DocumentPaths="@this.loadedDocumentPaths"/>
     </ExpansionPanel>
 </MudExpansionPanels>

app/MindWork AI Studio/Assistants/DocumentAnalysis/DocumentAnalysisAssistant.razor.cs

@@ -33,7 +33,7 @@ public partial class DocumentAnalysisAssistant : AssistantBaseCore<SettingsDialo
         get
         {
             var sb = new StringBuilder();
-            #warning TODO
+            #warning Add system prompt for document analysis
             return sb.ToString();
         }
     }
@@ -44,7 +44,7 @@ public partial class DocumentAnalysisAssistant : AssistantBaseCore<SettingsDialo
     
     protected override bool ShowSendTo => true;
 
-    protected override string SubmitText => T("Analyze document");
+    protected override string SubmitText => T("Analyze documents");
 
     protected override Func<Task> SubmitAction => this.Analyze;
 
@@ -99,10 +99,9 @@ public partial class DocumentAnalysisAssistant : AssistantBaseCore<SettingsDialo
             this.selectedPolicy = this.SettingsManager.ConfigurationData.DocumentAnalysis.Policies.First();
         }
         
-        var deferredContent = MessageBus.INSTANCE.CheckDeferredMessages<string>(Event.SEND_TO_DOCUMENT_ANALYSIS_ASSISTANT).FirstOrDefault();
-        // if (deferredContent is not null)
-            #warning Add handling of deferred content -> load into input area
-            //this.
+        var receivedDeferredContent = MessageBus.INSTANCE.CheckDeferredMessages<string>(Event.SEND_TO_DOCUMENT_ANALYSIS_ASSISTANT).FirstOrDefault();
+        if (receivedDeferredContent is not null)
+            this.deferredContent = receivedDeferredContent;
 
         await base.OnInitializedAsync();
     }
@@ -137,6 +136,8 @@ public partial class DocumentAnalysisAssistant : AssistantBaseCore<SettingsDialo
     private string policyDescription = string.Empty;
     private string policyAnalysisRules = string.Empty;
     private string policyOutputRules = string.Empty;
+    private string deferredContent = string.Empty;
+    private List<string> loadedDocumentPaths = [];
     
     private bool IsNoPolicySelectedOrProtected => this.selectedPolicy is null || this.selectedPolicy.IsProtected;
     

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

@@ -1459,6 +1459,15 @@ UI_TEXT_CONTENT["AISTUDIO::CHAT::CONTENTBLOCKCOMPONENT::T4188329028"] = "No, kee
 -- Open Settings
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::ASSISTANTBLOCK::T1172211894"] = "Open Settings"
 
+-- Images are not supported yet
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::ATTACHDOCUMENTS::T298062956"] = "Images are not supported yet"
+
+-- Executables are not allowed
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::ATTACHDOCUMENTS::T4167762413"] = "Executables are not allowed"
+
+-- Select a file to attach
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::ATTACHDOCUMENTS::T595772870"] = "Select a file to attach"
+
 -- Changelog
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHANGELOG::T3017574265"] = "Changelog"
 

app/MindWork AI Studio/Components/AttachDocuments.razor

@@ -0,0 +1,15 @@
+@inherits MSGComponentBase
+
+<MudLink OnClick="@(() => this.AddFilesManually())" Style="text-decoration: none;">
+    <MudPaper Height="20em"
+              Outlined="true"
+              Class="@this.dragClass">
+        <MudText Typo="Typo.h6">
+            Drag and drop files here or click to attach documents.
+        </MudText>
+        @foreach (var fileInfo in this.DocumentPaths.Select(file => new FileInfo(file)))
+        {
+            <MudChip T="string" Color="Color.Dark" Text="@fileInfo.Name" tabindex="-1" />
+        }
+    </MudPaper>
+</MudLink>

app/MindWork AI Studio/Components/AttachDocuments.razor.cs

@@ -0,0 +1,88 @@
+using AIStudio.Tools.Rust;
+using AIStudio.Tools.Services;
+
+using Microsoft.AspNetCore.Components;
+
+namespace AIStudio.Components;
+
+public partial class AttachDocuments : MSGComponentBase
+{
+    [Parameter]
+    public List<string> DocumentPaths { get; set; } = [];
+    
+    [Parameter]
+    public EventCallback<List<string>> DocumentPathsChanged { get; set; }
+    
+    [Parameter]
+    public Func<List<string>, Task> OnChange { get; set; } = _ => Task.CompletedTask;
+    
+    [Inject]
+    private RustService RustService { get; init; } = null!;
+    
+    #region Overrides of MSGComponentBase
+
+    protected override async Task OnInitializedAsync()
+    {
+        this.ApplyFilters([], [ Event.TAURI_EVENT_RECEIVED ]);
+        await base.OnInitializedAsync();
+    }
+
+    protected override async Task ProcessIncomingMessage<T>(ComponentBase? sendingComponent, Event triggeredEvent, T? data) where T : default
+    {
+        switch (triggeredEvent)
+        {
+            case Event.TAURI_EVENT_RECEIVED when data is TauriEvent { EventType: TauriEventType.FILE_DROP_HOVERED }:
+                this.SetDragClass();
+                break;
+            
+            case Event.TAURI_EVENT_RECEIVED when data is TauriEvent { EventType: TauriEventType.FILE_DROP_DROPPED, Payload: var paths }:
+                this.ClearDragClass();
+                foreach (var path in paths)
+                    this.DocumentPaths.Add(path);
+                await this.DocumentPathsChanged.InvokeAsync(this.DocumentPaths);
+                await this.OnChange(this.DocumentPaths);
+                break;
+            
+            case Event.TAURI_EVENT_RECEIVED when data is TauriEvent { EventType: TauriEventType.FILE_DROP_CANCELED }:
+                this.ClearDragClass();
+                break;
+        }
+    }
+
+    #endregion
+
+    private const string DEFAULT_DRAG_CLASS = "relative rounded-lg border-2 border-dashed pa-4 mt-4 mud-width-full mud-height-full";
+    
+    private string dragClass = DEFAULT_DRAG_CLASS;
+
+    private async Task AddFilesManually()
+    {
+        var selectedFile = await this.RustService.SelectFile(T("Select a file to attach"));
+        if (selectedFile.UserCancelled)
+            return;
+
+        if (!File.Exists(selectedFile.SelectedFilePath))
+            return;
+
+        var ext = Path.GetExtension(selectedFile.SelectedFilePath).TrimStart('.');
+        if (Array.Exists(FileTypeFilter.Executables.FilterExtensions, x => x.Equals(ext, StringComparison.OrdinalIgnoreCase)))
+        {
+            await MessageBus.INSTANCE.SendError(new(Icons.Material.Filled.AppBlocking, T("Executables are not allowed")));
+            return;
+        }
+
+        if (Array.Exists(FileTypeFilter.AllImages.FilterExtensions, x => x.Equals(ext, StringComparison.OrdinalIgnoreCase)))
+        {
+            await MessageBus.INSTANCE.SendWarning(new(Icons.Material.Filled.ImageNotSupported, T("Images are not supported yet")));
+            return;
+        }
+
+        this.DocumentPaths.Add(selectedFile.SelectedFilePath);
+        await this.DocumentPathsChanged.InvokeAsync(this.DocumentPaths);
+        await this.OnChange(this.DocumentPaths);
+    }
+
+    private void SetDragClass() => this.dragClass = $"{DEFAULT_DRAG_CLASS} mud-border-primary";
+    
+    private void ClearDragClass() => this.dragClass = DEFAULT_DRAG_CLASS;
+}