Added a way for organizations to prohibit providers (#1105)

app/MindWork AI Studio/Tools/Services/DataSourceEmbeddingProviders.cs

@@ -7,12 +7,30 @@ namespace AIStudio.Tools.Services;
 
 internal static class DataSourceEmbeddingProviders
 {
+    /// <summary>
+    /// Finds the embedding provider of a data source, when AI Studio may use it.
+    /// </summary>
+    /// <remarks>
+    /// A provider the organization prohibited counts as missing: nothing may be embedded with it,
+    /// neither the documents of the data source nor a query against its index.
+    /// </remarks>
     public static bool TryResolve(SettingsManager settingsManager, IDataSourceBase dataSource, [NotNullWhen(true)] out EmbeddingProvider? embeddingProvider)
     {
-        embeddingProvider = settingsManager.ConfigurationData.EmbeddingProviders.FirstOrDefault(provider =>
-            dataSource is IIndexedDataSource indexedDataSource &&
-            provider.Id.Equals(indexedDataSource.EmbeddingId, StringComparison.OrdinalIgnoreCase));
-
-        return embeddingProvider != default && embeddingProvider.UsedLLMProvider is not LLMProviders.NONE;
+        embeddingProvider = Find(settingsManager, dataSource);
+        return embeddingProvider is { UsedLLMProvider: not LLMProviders.NONE } && !settingsManager.IsProviderProhibited(embeddingProvider.UsedLLMProvider);
     }
-}
+
+    /// <summary>
+    /// Checks whether the organization prohibited the embedding provider of a data source.
+    /// </summary>
+    /// <remarks>
+    /// TryResolve fails for such a provider as well, but without the reason. The status of a data
+    /// source needs the reason to tell the user what to change.
+    /// </remarks>
+    public static bool IsProhibited(SettingsManager settingsManager, IDataSourceBase dataSource)
+        => Find(settingsManager, dataSource) is { } embeddingProvider && settingsManager.IsProviderProhibited(embeddingProvider.UsedLLMProvider);
+
+    private static EmbeddingProvider? Find(SettingsManager settingsManager, IDataSourceBase dataSource) => settingsManager.ConfigurationData.EmbeddingProviders.FirstOrDefault(provider =>
+        dataSource is IIndexedDataSource indexedDataSource &&
+        provider.Id.Equals(indexedDataSource.EmbeddingId, StringComparison.OrdinalIgnoreCase));
+}

app/MindWork AI Studio/Tools/Services/DataSourceEmbeddingService.cs

@@ -801,7 +801,9 @@ public sealed partial class DataSourceEmbeddingService(SettingsManager settingsM
         if (!this.TryResolveEmbeddingProvider(dataSource, out var embeddingProvider))
         {
             token.ThrowIfCancellationRequested();
-            this.UpsertStatus(this.GetFallbackStatus(dataSource, TB("The selected embedding provider is not available. Please check it in the settings.")));
+            this.UpsertStatus(this.GetFallbackStatus(dataSource, DataSourceEmbeddingProviders.IsProhibited(settingsManager, dataSource)
+                ? TB("The use of the embedding provider of this data source has been prohibited by your organization. Please select a different embedding provider in the settings of the data source.")
+                : TB("The selected embedding provider is not available. Please check it in the settings.")));
             return null;
         }
 

app/MindWork AI Studio/Tools/Services/MediaTranscriptionService.cs

@@ -754,10 +754,11 @@ public sealed class MediaTranscriptionService(
 
     /// <summary>Resolves the configured provider after confidence validation.</summary>
     /// <remarks>
-    /// Checks the global minimum confidence only. A caller with rules of its own, such as the
-    /// confidence level of a data source, checks the provider against them as well.
+    /// Checks the global minimum confidence and whether the organization prohibited the provider. A
+    /// caller with rules of its own, such as the confidence level of a data source, checks the
+    /// provider against them as well.
     /// </remarks>
-    /// <returns>The configured provider, or null when none is configured or it falls short of the global minimum.</returns>
+    /// <returns>The configured provider, or null when none is configured, it falls short of the global minimum, or it is prohibited.</returns>
     public TranscriptionProvider? GetUsableProvider()
     {
         var providerId = settingsManager.ConfigurationData.App.UseTranscriptionProvider;
@@ -769,7 +770,7 @@ public sealed class MediaTranscriptionService(
             return null;
 
         var minimumLevel = settingsManager.GetMinimumConfidenceLevel(Components.NONE);
-        return providerSettings.UsedLLMProvider.GetConfidence(settingsManager).Level >= minimumLevel
+        return settingsManager.IsProviderUsable(providerSettings.UsedLLMProvider, minimumLevel)
             ? providerSettings
             : null;
     }