ui: save periodically in every frontend

pqcli/roster.py

@@ -1,5 +1,7 @@
+import logging
 import pickle
 import typing as T
+from datetime import datetime
 from pathlib import Path
 
 from pqcli.mechanic import Player
@@ -9,6 +11,7 @@ class Roster:
     def __init__(self, path: Path, players: T.List[Player]) -> None:
         self.path = path
         self.players = players
+        self._last_save = datetime.now()
 
     @staticmethod
     def load(path: T.Union[str, Path]) -> "Roster":
@@ -20,6 +23,7 @@ class Roster:
         return Roster(real_path, players=[])
 
     def save(self) -> None:
+        self._last_save = datetime.now()
         old_path = self.path.with_name(self.path.name + ".old")
         tmp_path = self.path.with_name(self.path.name + ".new")
         tmp_path.parent.mkdir(parents=True, exist_ok=True)
@@ -27,3 +31,8 @@ class Roster:
         if self.path.exists():
             self.path.rename(old_path)
         tmp_path.rename(self.path)
+
+    def save_periodically(self):
+        if (datetime.now() - self._last_save).total_seconds() >= 300:
+            logging.info("Saving...")
+            self.save()