added manual refresh and cleaned up code

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

@@ -0,0 +1,86 @@
+using AIStudio.Settings.DataModel;
+using AIStudio.Tools.PluginSystem;
+
+namespace AIStudio.Tools.Services;
+
+public sealed record DataSourceEmbeddingOverview(
+    bool IsVisible,
+    DataSourceEmbeddingState State,
+    int IndexedFiles,
+    int TotalFiles,
+    int FailedFiles);
+
+public enum DataSourceEmbeddingState
+{
+    IDLE,
+    QUEUED,
+    RUNNING,
+    COMPLETED,
+    FAILED,
+}
+
+public sealed record DataSourceEmbeddingStatus(
+    string DataSourceId,
+    string DataSourceName,
+    DataSourceType DataSourceType,
+    DataSourceEmbeddingState State,
+    int TotalFiles,
+    int IndexedFiles,
+    int FailedFiles,
+    string CurrentFile,
+    string LastError)
+{
+    private static string TB(string fallbackEN) => I18N.I.T(fallbackEN, typeof(DataSourceEmbeddingService).Namespace, nameof(DataSourceEmbeddingService));
+
+    public int ProgressPercent => this.TotalFiles <= 0 ? 0 : Math.Clamp((int)Math.Round(this.IndexedFiles * 100d / this.TotalFiles), 0, 100);
+
+    public string StateLabel => this.State switch
+    {
+        DataSourceEmbeddingState.QUEUED => TB("Queued"),
+        DataSourceEmbeddingState.RUNNING => TB("Running"),
+        DataSourceEmbeddingState.COMPLETED => TB("Completed"),
+        DataSourceEmbeddingState.FAILED => TB("Needs attention"),
+        _ => TB("Idle")
+    };
+
+    public int SortOrder => this.State switch
+    {
+        DataSourceEmbeddingState.RUNNING => 0,
+        DataSourceEmbeddingState.QUEUED => 1,
+        DataSourceEmbeddingState.FAILED => 2,
+        DataSourceEmbeddingState.COMPLETED => 3,
+        _ => 4,
+    };
+}
+
+public sealed class FileEnumerationResult
+{
+    public List<FileInfo> Files { get; } = [];
+
+    public int FailedFiles { get; set; }
+
+    public string LastError { get; set; } = string.Empty;
+}
+
+public sealed class PersistedEmbeddingState
+{
+    public Dictionary<string, DataSourceEmbeddingManifest> DataSources { get; init; } = new(StringComparer.OrdinalIgnoreCase);
+}
+
+public sealed class DataSourceEmbeddingManifest
+{
+    public string EmbeddingProviderId { get; set; } = string.Empty;
+
+    public string EmbeddingSignature { get; set; } = string.Empty;
+
+    public int VectorSize { get; set; }
+
+    public Dictionary<string, EmbeddedFileRecord> Files { get; init; } = new(StringComparer.OrdinalIgnoreCase);
+}
+
+public sealed record EmbeddedFileRecord(
+    string Fingerprint,
+    long FileSize,
+    DateTime LastWriteUtc,
+    DateTime EmbeddedAtUtc,
+    int ChunkCount);