Add attendee transformation workflows

MeetingAssistant/Screenshots/MeetingScreenshotService.cs

@@ -5,6 +5,7 @@ using System.Runtime.InteropServices;
 using System.Text.RegularExpressions;
 using MeetingAssistant.MeetingNotes;
 using MeetingAssistant.Speakers;
+using MeetingAssistant.Workflow;
 
 namespace MeetingAssistant.Screenshots;
 
@@ -149,6 +150,7 @@ public sealed partial class MeetingScreenshotService :
     private readonly IMeetingArtifactStore artifactStore;
     private readonly IMeetingNoteStore meetingNoteStore;
     private readonly ISpeakerIdentityAttendeeCanonicalizer attendeeCanonicalizer;
+    private readonly IMeetingWorkflowEngine meetingWorkflowEngine;
     private readonly IScreenshotOcrClient ocrClient;
     private readonly ILogger<MeetingScreenshotService> logger;
     private readonly ConcurrentDictionary<string, List<PendingOcrTask>> pendingOcrByContext = new(StringComparer.OrdinalIgnoreCase);
@@ -160,12 +162,14 @@ public sealed partial class MeetingScreenshotService :
         IMeetingNoteStore meetingNoteStore,
         ISpeakerIdentityAttendeeCanonicalizer attendeeCanonicalizer,
         IScreenshotOcrClient ocrClient,
-        ILogger<MeetingScreenshotService> logger)
+        ILogger<MeetingScreenshotService> logger,
+        IMeetingWorkflowEngine? meetingWorkflowEngine = null)
     {
         this.screenshotCapture = screenshotCapture;
         this.artifactStore = artifactStore;
         this.meetingNoteStore = meetingNoteStore;
         this.attendeeCanonicalizer = attendeeCanonicalizer;
+        this.meetingWorkflowEngine = meetingWorkflowEngine ?? NoopMeetingWorkflowEngine.Instance;
         this.ocrClient = ocrClient;
         this.logger = logger;
     }
@@ -434,6 +438,7 @@ public sealed partial class MeetingScreenshotService :
                 await AddOcrAttendeesAsync(
                     artifacts,
                     result.Attendees,
+                    options,
                     CancellationToken.None);
             }
         }
@@ -477,6 +482,7 @@ public sealed partial class MeetingScreenshotService :
     private async Task AddOcrAttendeesAsync(
         MeetingSessionArtifacts artifacts,
         IReadOnlyList<string> attendees,
+        MeetingAssistantOptions options,
         CancellationToken cancellationToken)
     {
         var additions = MeetingAttendeeNames.NormalizeDistinct(attendees);
@@ -488,8 +494,13 @@ public sealed partial class MeetingScreenshotService :
         try
         {
             var meetingNote = await meetingNoteStore.ReadAsync(artifacts.MeetingNotePath, cancellationToken);
+            var transformedAdditions = await TransformAttendeesAsync(
+                artifacts,
+                additions,
+                options,
+                cancellationToken);
             var canonicalized = await attendeeCanonicalizer.CanonicalizeAsync(
-                meetingNote.Frontmatter.Attendees.Concat(additions).ToList(),
+                meetingNote.Frontmatter.Attendees.Concat(transformedAdditions).ToList(),
                 cancellationToken);
             if (meetingNote.Frontmatter.Attendees.SequenceEqual(canonicalized, StringComparer.Ordinal))
             {
@@ -512,6 +523,30 @@ public sealed partial class MeetingScreenshotService :
         }
     }
 
+    private async Task<IReadOnlyList<string>> TransformAttendeesAsync(
+        MeetingSessionArtifacts artifacts,
+        IReadOnlyList<string> attendees,
+        MeetingAssistantOptions options,
+        CancellationToken cancellationToken)
+    {
+        var transformed = new List<string>();
+        foreach (var attendee in attendees)
+        {
+            var value = await meetingWorkflowEngine.TransformAttendeeAsync(
+                MeetingWorkflowEvent.AttendeeAdded(artifacts, attendee),
+                options,
+                cancellationToken);
+            var normalized = MeetingAttendeeNames.NormalizeDisplayName(value);
+            if (!string.IsNullOrWhiteSpace(normalized) &&
+                !transformed.Contains(normalized, StringComparer.OrdinalIgnoreCase))
+            {
+                transformed.Add(normalized);
+            }
+        }
+
+        return transformed;
+    }
+
     private async Task<bool> ReplaceOcrPlaceholderAsync(
         string assistantContextPath,
         string screenshotId,