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));
+}