feat(api): add cache + busting for admin

polylan_submitter/noita/api.py

@@ -1,5 +1,6 @@
 from django.http import HttpRequest
 from django.core.files.base import ContentFile
+from django.core.cache import cache
 from django.db.models import (
     F,
     Case,
@@ -32,6 +33,11 @@ def get_my_objectives(request: HttpRequest):
 
 @router.get("results", response=ResultsOut)
 def get_results(request: HttpRequest):
+    cache_key = f"api:noita:results:{request.user.id}"
+    cached_data = cache.get(cache_key)
+
+    if cached_data is not None:
+        return cached_data
     """
     Get the user's score based on their objectives.
 
@@ -92,11 +98,14 @@ def get_results(request: HttpRequest):
         for obj in user_objectives.order_by("-total_points")
     ]
 
-    return {
+    data = {
         "total_score": total_score,
         "objectives": objectives_with_points,
     }
 
+    cache.set(f"api:noita:results:{request.user.id}", data, 300)
+    return data
+
 
 @router.get("leaderboard", response=LeaderboardOut)
 def get_leaderboard(request: HttpRequest):
@@ -105,6 +114,12 @@ def get_leaderboard(request: HttpRequest):
 
     Uses Window functions to rank users by their total score in descending order.
     """
+    cache_key = "api:noita:leaderboard"
+    cached_data = cache.get(cache_key)
+
+    if cached_data is not None:
+        return cached_data
+
     from django.contrib.auth import get_user_model
 
     User = get_user_model()
@@ -174,7 +189,7 @@ def get_leaderboard(request: HttpRequest):
         .order_by("rank")
     )
 
-    return {
+    data = {
         "leaderboard": [
             {
                 "rank": entry["rank"],
@@ -186,6 +201,9 @@ def get_leaderboard(request: HttpRequest):
         ]
     }
 
+    cache.set("api:noita:leaderboard", data, 300)
+    return data
+
 
 @router.post("submit", response={200: NoitaSubmissionOut, 400: dict})
 def submit_log_file(request: HttpRequest, file: UploadedFile = File(...)):
@@ -232,6 +250,11 @@ def submit_log_file(request: HttpRequest, file: UploadedFile = File(...)):
         except Exception:
             pass
 
+        # Invalidate caches on successful submission
+        if submission.user:
+            cache.delete(f"api:noita:results:{submission.user.id}")
+        cache.delete("api:noita:leaderboard")
+
         return {
             "id": str(submission.id),
             "user_id": submission.user_id,