Added common.dart

lib/core/common.dart

@@ -0,0 +1,45 @@
+import 'package:flutter/cupertino.dart';
+import 'package:tallee/core/enums.dart';
+import 'package:tallee/data/dto/match.dart';
+import 'package:tallee/l10n/generated/app_localizations.dart';
+
+/// Translates a [Ruleset] enum value to its corresponding localized string.
+String translateRulesetToString(Ruleset ruleset, BuildContext context) {
+  final loc = AppLocalizations.of(context);
+  switch (ruleset) {
+    case Ruleset.highestScore:
+      return loc.highest_score;
+    case Ruleset.lowestScore:
+      return loc.lowest_score;
+    case Ruleset.singleWinner:
+      return loc.single_winner;
+    case Ruleset.singleLoser:
+      return loc.single_loser;
+    case Ruleset.multipleWinners:
+      return loc.multiple_winners;
+  }
+}
+
+/// Counts how many players in the match are not part of the group
+/// Returns the count as a string, or an empty string if there is no group
+String getExtraPlayerCount(Match match) {
+  int count = 0;
+
+  if (match.group == null) {
+    return '';
+  }
+
+  final groupMembers = match.group!.members;
+  final players = match.players;
+
+  for (var player in players) {
+    if (!groupMembers.any((member) => member.id == player.id)) {
+      count++;
+    }
+  }
+
+  if (count == 0) {
+    return '';
+  }
+  return ' + ${count.toString()}';
+}