Add HTML5 authoring diff preview

services/api-server/src/api_server/main.py

@@ -38,6 +38,7 @@ from pydantic import BaseModel, Field
 from api_server.html5 import (
     render_html5_authoring_changes,
     render_html5_authoring_change_detail,
+    render_html5_authoring_diff_result,
     render_html5_authoring_preview_result,
     render_html5_authoring_rollback_result,
     render_html5_editor,
@@ -1794,6 +1795,26 @@ async def html5_project_authoring_completion_preview(project_id: str, request: R
     return Response(html, media_type="text/html; charset=utf-8")
 
 
+@app.post("/html5/projects/{project_id}/authoring/semantic-diff-preview")
+async def html5_project_authoring_semantic_diff_preview(project_id: str, request: Request) -> Response:
+    form = await _html5_form_data(request)
+    payload = AuthoringSemanticDiffPreviewRequest(
+        routine_name=_form_value(form, "routine_name"),
+        source_path=_form_value(form, "source_path"),
+        original_text=_form_value(form, "original_text") or "",
+        proposed_text=_form_value(form, "proposed_text") or "",
+        task_id=_form_value(form, "task_id"),
+        session_id=_form_value(form, "session_id"),
+        user_id=_form_value(form, "user_id"),
+    )
+    try:
+        preview = _authoring_semantic_diff_preview(project_id, payload)
+        html = render_html5_authoring_diff_result(project_id, preview)
+    except HTTPException as error:
+        html = render_html5_authoring_diff_result(project_id, error=str(error.detail))
+    return Response(html, media_type="text/html; charset=utf-8")
+
+
 @app.get("/html5/projects/{project_id}/setup")
 async def html5_project_setup(project_id: str) -> Response:
     setup = _project_setup_response(project_id)