complete refresh function for loading data

trivia/utils.py

@@ -0,0 +1,44 @@
+"""
+utils.py
+
+Stores important backend application functionality.
+"""
+import os
+import json
+
+from typing import List
+from trivia import Team
+
+# Generate paths
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+DATA_DIR = os.path.join(BASE_DIR, 'data')
+
+data: List[Team] = None
+
+
+def refresh() -> None:
+    """
+    Refreshes scores data safely.
+
+    :return:
+    """
+
+    try:
+        print('Attempting to load and parse scores file.')
+        with open(os.path.join(DATA_DIR, 'scores.json')) as file:
+            temp = json.load(file)
+
+        # Place all values into Team object for jinja
+        temp = [
+            Team(
+                rank=-1,
+                id=team['teamno'],
+                name=team['teamname'],
+                scores=team['scores']
+            ) for team in temp
+        ]
+        print(f'Successfully loaded ({len(temp)} teams).')
+        data = temp
+    # If invalid or inaccessible, simply do nothing.
+    except json.JSONDecodeError:
+        print('Scores file could not be opened or parsed.')