Finish the Pandoc integration

app/Build/Commands/Pdfium.cs

@@ -48,7 +48,7 @@ public static async Task InstallAsync(RID rid, string version)
         //
         Console.Write(" deploying ...");
         var library = GetLibraryPath(rid);
-        if (string.IsNullOrEmpty(library.Path))
+        if (string.IsNullOrWhiteSpace(library.Path))
         {
             Console.WriteLine($" failed to find the library path for {rid.ToUserFriendlyName()}");
             return;

app/MindWork AI Studio/Assistants/ERI/AssistantERI.razor

@@ -154,7 +154,7 @@ else
         @if (this.dataSourcePort < 1024)
         {
             <MudText Typo="Typo.body2">
-                @((MarkupString)T("<b>Warning:</b> Ports below 1024 are reserved for system services. Your ERI server need to run with elevated permissions (root user)."))
+                <b>@T("Warning:")</b> @T("Ports below 1024 are reserved for system services. Your ERI server need to run with elevated permissions (root user).")
             </MudText>
         }
     </div>
@@ -326,7 +326,7 @@ else
 </MudJustifiedText>
 
 <MudJustifiedText Typo="Typo.body1" Class="mb-2">
-    @((MarkupString)T("<b>Important:</b> The LLM may need to generate many files. This reaches the request limit of most providers. Typically, only a certain number of requests can be made per minute, and only a maximum number of tokens can be generated per minute. AI Studio automatically considers this. <b>However, generating all the files takes a certain amount of time.</b> Local or self-hosted models may work without these limitations and can generate responses faster. AI Studio dynamically adapts its behavior and always tries to achieve the fastest possible data processing."))
+    <b>@T("Important:")</b> @T("The LLM may need to generate many files. This reaches the request limit of most providers. Typically, only a certain number of requests can be made per minute, and only a maximum number of tokens can be generated per minute. AI Studio automatically considers this.") <b>@T("However, generating all the files takes a certain amount of time.")</b> @T("Local or self-hosted models may work without these limitations and can generate responses faster. AI Studio dynamically adapts its behavior and always tries to achieve the fastest possible data processing.")
 </MudJustifiedText>
 
 <ProviderSelection @bind-ProviderSettings="@this.providerSettings" ValidateProvider="@this.ValidatingProvider"/>
@@ -340,7 +340,7 @@ else
 </MudJustifiedText>
 
 <MudJustifiedText Typo="Typo.body1" Class="mb-2">
-    @((MarkupString)T("When you rebuild / re-generate the ERI server code, AI Studio proceeds as follows: All files generated last time will be deleted. All other files you have created remain. Then, the AI generates the new files. <b>But beware:</b> It may happen that the AI generates a file this time that you manually created last time. In this case, your manually created file will then be overwritten. Therefore, you should always create a Git repository and commit or revert all changes before using this assistant. With a diff visualization, you can immediately see where the AI has made changes. It is best to use an IDE suitable for your selected language for this purpose."))
+    @T("When you rebuild / re-generate the ERI server code, AI Studio proceeds as follows: All files generated last time will be deleted. All other files you have created remain. Then, the AI generates the new files.") <b>@T("But beware:")</b> @T("It may happen that the AI generates a file this time that you manually created last time. In this case, your manually created file will then be overwritten. Therefore, you should always create a Git repository and commit or revert all changes before using this assistant. With a diff visualization, you can immediately see where the AI has made changes. It is best to use an IDE suitable for your selected language for this purpose.")
 </MudJustifiedText>
 
 <MudTextSwitch Label="@T("Should we write the generated code to the file system?")" Disabled="@this.IsNoneERIServerSelected" @bind-Value="@this.writeToFilesystem" LabelOn="@T("Yes, please write or update all generated code to the file system")" LabelOff="@T("No, just show me the code")" />

app/MindWork AI Studio/Components/CodeBlock.razor

@@ -1,15 +1,22 @@
-
-@if (!this.IsInline)
+@if (!this.IsInline)
 {
     @if (this.ParentTabs is null)
     {
-        <MudPaper Class="code-block no-elevation" Style="@this.BlockPadding()">
-            <pre><code>@this.ChildContent</code></pre>
+        <MudPaper Class="code-block no-elevation" Style="@this.BlockPadding">
+            <pre>
+                <code>
+                    @this.ChildContent
+                </code>
+            </pre>
         </MudPaper>
     }
 }
 else
 {
-    <span class="inline-code-block"><kbd>@this.ChildContent</kbd></span>
+    <span class="inline-code-block">
+        <kbd>
+            @this.ChildContent
+        </kbd>
+    </span>
 }
 

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

@@ -33,8 +33,5 @@ void BlockSelf(RenderTreeBuilder builder)
         }
     }
 
-    private string BlockPadding()
-    {
-        return this.ParentTabs is null ? "padding: 16px !important;" : "padding: 8px !important";
-    }
+    private string BlockPadding => this.ParentTabs is null ? "padding: 16px !important;" : "padding: 8px !important";
 }

app/MindWork AI Studio/Components/CodeTabs.razor

@@ -1,5 +1,5 @@
-<MudTabs @bind-ActivePanelIndex="selectedIndex" PanelClass="code-block" MinimumTabWidth="30px" Class="mt-2">
-    @foreach (var block in blocks)
+<MudTabs ActivePanelIndex="this.SelectedIndex" ActivePanelIndexChanged="async idx => await this.TabChanged(idx)" PanelClass="code-block mt-1" MinimumTabWidth="30px" Class="mt-2">
+    @foreach (var block in this.blocks)
     {
         <MudTabPanel Text="@block.Title">
             @block.Fragment

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

@@ -7,8 +7,13 @@ public partial class CodeTabs : ComponentBase
     [Parameter] 
     public RenderFragment? ChildContent { get; set; }
 
+    [Parameter]
+    public int SelectedIndex { get; set; }
+
+    [Parameter]
+    public EventCallback<int> SelectedIndexChanged { get; set; }
+
     private readonly List<CodeTabItem> blocks = new();
-    private int selectedIndex;
 
     internal void RegisterBlock(string title, RenderFragment fragment)
     {
@@ -27,4 +32,11 @@ private class CodeTabItem
 
         public RenderFragment Fragment { get; init; } = null!;
     }
+
+    private async Task TabChanged(int index)
+    {
+        this.SelectedIndex = index;
+        await this.SelectedIndexChanged.InvokeAsync(index);
+        await this.InvokeAsync(this.StateHasChanged);
+    }
 }

app/MindWork AI Studio/Components/ExpansionPanel.razor

@@ -1,4 +1,4 @@
-<MudExpansionPanel Class="border-solid border rounded-lg" Expanded="@this.IsExpanded">
+<MudExpansionPanel Class="border-solid border rounded-lg" Expanded="@this.IsExpanded" MaxHeight="@this.MaxHeight" ExpandedChanged="async s => await this.ExpandedChanged(s)">
     <TitleContent>
         <div class="d-flex align-center">
             <MudIcon Icon="@this.HeaderIcon" Size="@this.IconSize" Color="@this.IconColor" class="mr-3"/>

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

@@ -16,6 +16,12 @@ public partial class ExpansionPanel : ComponentBase
     [Parameter]
     public string HeaderText { get; set; } = "n/a";
 
+    [Parameter]
+    public int? MaxHeight { get; set; }
+
+    [Parameter]
+    public Func<bool, Task> ExpandedChanged { get; set; } = _ => Task.CompletedTask;
+
     [Parameter]
     public RenderFragment? ChildContent { get; set; }
 

app/MindWork AI Studio/Components/ManagePandocDependency.razor

@@ -0,0 +1,10 @@
+@inherits MSGComponentBase
+
+<MudStack Row="false" Class="mb-3 pa-3 border-dashed border rounded-lg">
+    <MudJustifiedText Typo="Typo.body1">
+        @this.DetermineIntroText()
+    </MudJustifiedText>
+    <MudButton Color="@this.DetermineButtonColor()" Variant="Variant.Filled" OnClick="() => this.ShowPandocDialogAsync()">
+        @this.DetermineButtonText()
+    </MudButton>
+</MudStack>

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

@@ -0,0 +1,97 @@
+using AIStudio.Dialogs;
+using AIStudio.Tools.Services;
+
+using Microsoft.AspNetCore.Components;
+
+using DialogOptions = AIStudio.Dialogs.DialogOptions;
+
+namespace AIStudio.Components;
+
+public partial class ManagePandocDependency : MSGComponentBase
+{
+    [Parameter]
+    public string IntroText { get; set; } = string.Empty;
+
+    [Inject]
+    private IDialogService DialogService { get; init; } = null!;
+
+    [Inject]
+    private RustService RustService { get; init; } = null!;
+
+    private PandocInstallation pandocInstallation;
+
+    #region Overrides of MSGComponentBase
+
+    protected override async Task OnInitializedAsync()
+    {
+        await base.OnInitializedAsync();
+        this.pandocInstallation = await Pandoc.CheckAvailabilityAsync(this.RustService, false);
+    }
+
+    #endregion
+
+    private Color DetermineButtonColor()
+    {
+        if (this.pandocInstallation == default)
+            return Color.Default;
+
+        switch (this.pandocInstallation)
+        {
+            case { CheckWasSuccessful: true, IsAvailable: true }:
+                return Color.Default;
+
+            case { CheckWasSuccessful: true, IsAvailable: false }:
+                return Color.Warning;
+
+            case { CheckWasSuccessful: false }:
+                return Color.Error;
+        }
+    }
+
+    private string DetermineButtonText()
+    {
+        if(this.pandocInstallation == default)
+            return T("Please wait while we check the availability of Pandoc.");
+
+        switch (this.pandocInstallation)
+        {
+            case { CheckWasSuccessful: true, IsAvailable: true }:
+                return T("Check your Pandoc installation");
+
+            case { CheckWasSuccessful: true, IsAvailable: false }:
+                return T("Update Pandoc");
+
+            case { CheckWasSuccessful: false }:
+                return T("Install Pandoc");
+        }
+    }
+
+    private string DetermineIntroText()
+    {
+        if (this.pandocInstallation == default)
+            return $"{this.IntroText} {T("Please wait while we check the availability of Pandoc.")}";
+
+        switch (this.pandocInstallation)
+        {
+            case { CheckWasSuccessful: true, IsAvailable: true }:
+                return $"{this.IntroText} {T("Your Pandoc installation meets the requirements.")}";
+
+            case { CheckWasSuccessful: true, IsAvailable: false }:
+                return $"{this.IntroText} {T("Your Pandoc installation is outdated. Please update it to the latest version to ensure compatibility with all features.")}";
+
+            case { CheckWasSuccessful: false }:
+                return $"{this.IntroText} {T("Pandoc is not installed or not available. Please install it to use the features that require Pandoc.")}";
+        }
+    }
+
+    private async Task ShowPandocDialogAsync()
+    {
+        var dialogReference = await this.DialogService.ShowAsync<PandocDialog>(T("Pandoc Installation"), DialogOptions.FULLSCREEN);
+        await dialogReference.Result;
+
+        // Refresh the availability of Pandoc after the dialog is closed:
+        this.pandocInstallation = await Pandoc.CheckAvailabilityAsync(this.RustService, false);
+
+        await this.InvokeAsync(this.StateHasChanged);
+    }
+}

app/MindWork AI Studio/Dialogs/DataSourceLocalDirectoryDialog.razor

@@ -60,6 +60,8 @@
                     </MudJustifiedText>
                 }
             }
+
+            <ManagePandocDependency IntroText="@T("For some data types, such as Office files, MindWork AI Studio requires the open-source application Pandoc.")"/>
 
             <MudSelect @bind-Value="@this.dataSecurityPolicy" Text="@this.dataSecurityPolicy.ToSelectionText()" Label="@T("Your security policy")" Class="mb-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.dataSourceValidation.ValidateSecurityPolicy">
                 @foreach (var policy in Enum.GetValues<DataSourceSecurity>())

app/MindWork AI Studio/Dialogs/DataSourceLocalFileDialog.razor

@@ -60,6 +60,8 @@
                     </MudJustifiedText>
                 }
             }
+
+            <ManagePandocDependency IntroText="@T("For some data types, such as Office files, MindWork AI Studio requires the open-source application Pandoc.")"/>
 
             <MudSelect @bind-Value="@this.dataSecurityPolicy" Text="@this.dataSecurityPolicy.ToSelectionText()" Label="@T("Your security policy")" Class="mb-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.dataSourceValidation.ValidateSecurityPolicy">
                 @foreach (var policy in Enum.GetValues<DataSourceSecurity>())