Adding fixes to the stitcher

gnommo/validator.py

@@ -22,6 +22,7 @@ def validate_project(
     videos: dict[str, VideoSource],
     videos_dir: Path,
     malformed_markers: list[tuple[int, str]] = None,
+    audio: dict = None,
 ) -> list[ValidationIssue]:
     """
     Validate all parsed project data. Raises ValidationError if any issues found.
@@ -34,6 +35,7 @@ def validate_project(
     - Background video exists (if specified)
     - Slide types are valid
     - No malformed markers in manuscript
+    - All audio: markers in manuscript exist in audio.json
     """
     issues: list[ValidationIssue] = []
     warnings: list[ValidationIssue] = []
@@ -52,9 +54,9 @@ def validate_project(
     for marker in manuscript_markers:
         prefix = next((p for p in _VIDEO_PREFIXES if marker.startswith(p)), None)
         if prefix is not None:
-            referenced_video_ids.add(marker[_VIDEO_PREFIXES[prefix]:])
+            referenced_video_ids.add(marker[_VIDEO_PREFIXES[prefix]:].lower())
         elif marker.startswith("narration:"):
-            referenced_video_ids.add(marker[10:])
+            referenced_video_ids.add(marker[10:].lower())
 
     # Check for malformed markers first (these are likely typos)
     if malformed_markers:
@@ -84,7 +86,7 @@ def validate_project(
             (p for p in _VIDEO_PREFIXES if marker.startswith(p)), None
         )
         if matched_prefix is not None:
-            video_id = marker[_VIDEO_PREFIXES[matched_prefix] :]
+            video_id = marker[_VIDEO_PREFIXES[matched_prefix] :].lower()
             if video_id not in videos:
                 hint = ""
                 if "." in video_id:
@@ -111,7 +113,7 @@ def validate_project(
 
         # Validate narration trigger markers (narration:xxx) - continuous videos
         if marker.startswith("narration:"):
-            video_id = marker[10:]  # Remove 'narration:' prefix
+            video_id = marker[10:].lower()  # Remove 'narration:' prefix
             if video_id not in videos:
                 warnings.append(
                     ValidationIssue(
@@ -135,6 +137,10 @@ def validate_project(
         if marker.startswith("segment:"):
             continue
 
+        # Bare narrator cues (teleprompter hints, not pipeline markers)
+        if marker in ("pause", "stop"):
+            continue
+
         # Unknown namespaced markers (e.g. [background:xxx]) — not supported, ignore with warning
         if ":" in marker:
             warnings.append(
@@ -320,6 +326,26 @@ def validate_project(
                     )
                 )
 
+    # Check all audio: markers in manuscript exist in audio.json
+    if audio is not None:
+        seen_audio: set[str] = set()
+        manuscript_path = project_path / "manuscript.txt"
+        for marker in manuscript_markers:
+            audio_id = None
+            if marker.startswith("audio:"):
+                audio_id = marker[6:]
+            elif marker.startswith("A") and len(marker) > 1 and marker[1:].isalnum():
+                audio_id = marker[1:]
+            if audio_id and audio_id not in seen_audio:
+                seen_audio.add(audio_id)
+                if audio_id not in audio:
+                    warnings.append(
+                        ValidationIssue(
+                            f"Audio marker [{marker}] referenced in manuscript but '{audio_id}' not defined in audio.json — will be silent at render",
+                            manuscript_path,
+                        )
+                    )
+
     # If any issues, raise ValidationError
     if issues:
         raise ValidationError(issues)