Add transcript line workflow rules

MeetingAssistant/Workflow/MeetingWorkflowRulesValidator.cs

@@ -4,11 +4,11 @@ namespace MeetingAssistant.Workflow;
 
 internal static class MeetingWorkflowRulesValidator
 {
-    private static readonly string[] SupportedTriggerKeys = ["created", "state_transition", "speaker_identified"];
+    private static readonly string[] SupportedTriggerKeys = ["created", "state_transition", "speaker_identified", "transcript_line"];
     private static readonly string[] SupportedConditionKeys = ["condition", "and", "or", "not"];
     private static readonly string[] SupportedStepUses =
         ["add_attendee", "remove_attendee", "add_project", "set_property", "add_context"];
-    private static readonly string[] SupportedSetPropertyNames = ["title", "meeting.title"];
+    private static readonly string[] SupportedSetPropertyNames = ["title", "meeting.title", "transcript.line"];
 
     public static async Task<IReadOnlyList<string>> ValidateAsync(MeetingWorkflowRulesFile rulesFile)
     {
@@ -43,6 +43,7 @@ internal static class MeetingWorkflowRulesValidator
             {
                 await ValidateStepAsync(
                     rule.Steps[stepIndex],
+                    rule,
                     ruleName,
                     stepIndex,
                     errors,
@@ -63,7 +64,8 @@ internal static class MeetingWorkflowRulesValidator
         var configuredCount = CountConfigured(
             trigger.Created is not null,
             trigger.StateTransition is not null,
-            trigger.SpeakerIdentified is not null);
+            trigger.SpeakerIdentified is not null,
+            trigger.TranscriptLine is not null);
         if (configuredCount == 0)
         {
             errors.Add($"{ruleName} on[{triggerIndex + 1}] must contain one supported trigger: {JoinAllowed(SupportedTriggerKeys)}.");
@@ -120,6 +122,7 @@ internal static class MeetingWorkflowRulesValidator
 
     private static async Task ValidateStepAsync(
         MeetingWorkflowStep step,
+        MeetingWorkflowRule rule,
         string ruleName,
         int stepIndex,
         List<string> errors,
@@ -151,6 +154,11 @@ internal static class MeetingWorkflowRulesValidator
             {
                 errors.Add($"{stepPath} uses unsupported property '{property}'. Supported properties: {JoinAllowed(SupportedSetPropertyNames)}.");
             }
+            else if (string.Equals(property.Trim(), "transcript.line", StringComparison.OrdinalIgnoreCase) &&
+                !HasTranscriptLineTrigger(rule))
+            {
+                errors.Add($"{stepPath} can set 'transcript.line' only on rules with a transcript_line trigger.");
+            }
         }
 
         if (step.Value is { } value &&
@@ -174,6 +182,11 @@ internal static class MeetingWorkflowRulesValidator
             : $"rule '{rule.Name}'";
     }
 
+    private static bool HasTranscriptLineTrigger(MeetingWorkflowRule rule)
+    {
+        return rule.On.Any(static trigger => trigger.TranscriptLine is not null);
+    }
+
     private static int CountConfigured(params bool[] values)
     {
         return values.Count(static value => value);
@@ -196,7 +209,10 @@ internal static class MeetingWorkflowRulesValidator
                 MeetingWorkflowEventType.StateTransition.ToString(),
                 MeetingWorkflowStateNames.ToRuleName(AssistantContextState.CollectingMetadata),
                 MeetingWorkflowStateNames.ToRuleName(AssistantContextState.Transcribing)),
-            new MeetingWorkflowSpeakerModel("Ada Lovelace"));
+            new MeetingWorkflowSpeakerModel("Ada Lovelace"),
+            new MeetingWorkflowTranscriptModel(
+                "[00:00:01] Ada Lovelace: Validation line.",
+                "Ada Lovelace"));
     }
 
     private static string FormatRazorValidationMessage(Exception exception)