Logic improvement: first scanner iteration: enable notifications as well

tgtg_scanner/scanner.py

@@ -3,6 +3,7 @@
 from random import random
 from time import sleep
 from typing import Dict, List, NoReturn, Union
+import copy
 
 from progress.spinner import Spinner
 
@@ -104,6 +105,14 @@ def _job(self) -> None:
             except TgtgAPIError as err:
                 log.error(err)
         items += self._get_favorites()
+
+        # if state is empty (first scanning iteration), initialize it with the current favorite items and set `items_available` property to 0.
+        # It allows to be able to receive notifications at start if some magic bags are already available.
+        if not self.state:
+            self.state = {item.item_id: copy.deepcopy(item) for item in items}
+            for item in self.state.values():
+                item.items_available = 0
+
         for item in items:
             self._check_item(item)