fix: prevent accounting before departure (#266)

Author: 2paperstar

assets/i18n/en.i18n.json

@@ -360,7 +360,7 @@
           "account_info_not_set": "Account information is not set",
           "cost_cannot_be_negative": "Cost cannot be negative",
           "cost_per_user_mismatch": "Cost per user mismatch",
-          "before_departure": "You cannot request accounting before confirming the departure time",
+          "before_departure": "You can request accounting 10 minutes after the departure time",
           "not_a_participant": "You are not a participant",
           "pot_not_exist": "Pot does not exist",
           "pot_already_closed": "Pot has already been closed",

assets/i18n/ko.i18n.json

@@ -357,7 +357,7 @@
           "account_info_not_set": "계좌 정보가 설정되지 않았습니다",
           "cost_cannot_be_negative": "정산 금액은 0원 이상이어야 합니다",
           "cost_per_user_mismatch": "정산 금액이 동승자 수와 일치하지 않습니다",
-          "before_departure": "출발 시간을 확정하지 않아 정산을 요청할 수 없습니다",
+          "before_departure": "출발 시각 10분 후부터 정산이 가능합니다",
           "not_a_participant": "동승자가 아닙니다",
           "pot_not_exist": "팟이 존재하지 않습니다",
           "pot_already_closed": "팟이 이미 해산되었습니다",

lib/app/modules/chat/presentation/widgets/accounting_button.dart

@@ -17,10 +17,20 @@ class AccountingButton extends StatelessWidget {
     BuildContext context,
     PotInfoEntity pot,
   ) async {
-    if (pot.departureTime == null) {
+    final departureTime = pot.departureTime;
+    if (departureTime == null) {
       context.showToast(context.t.chat_room.accounting.before_confirm);
       return;
     }
+    final tenMinutesAfterDeparture = departureTime.add(
+      const Duration(minutes: 10),
+    );
+    if (DateTime.now().isBefore(tenMinutesAfterDeparture)) {
+      context.showToast(
+        context.t.chat_room.accounting.dutch.errors.before_departure,
+      );
+      return;
+    }
     await AccountingRoute(pot: pot).push(context);
   }