add hook for day rollover

Author: jakeprobst

qt/aqt/main.py

@@ -554,6 +554,8 @@ def refresh_reviewer_on_day_rollover_change():
                 last_day_cutoff = self.col.sched.day_cutoff
                 self.reviewer._refresh_needed = RefreshNeeded.QUEUES
                 self.reviewer.refresh_if_needed()
+            if last_day_cutoff != current_cutoff:
+                gui_hooks.rollover()
 
             # schedule another check
             secs_until_cutoff = current_cutoff - int_time()

qt/tools/genhooks_gui.py

@@ -898,6 +898,10 @@ def on_top_toolbar_did_init_links(links, toolbar):
 
         `output` provides access to the unused/missing file lists and the text output that will be shown in the Check Media screen.""",
     ),
+    Hook(
+        name="rollover",
+        doc="""Called when Anki moves to the next day."""
+    ),
     # Importing/exporting data
     ###################
     Hook(