feat: statistic detail view

lib/data/dao/statistic_dao.dart

@@ -80,12 +80,13 @@ class StatisticDao extends DatabaseAccessor<AppDatabase>
       result.map((row) async {
         final groups = await db.statisticGroupDao.getGroupsForStatistic(row.id);
         final games = await db.statisticGameDao.getGamesForStatistic(row.id);
+        final scopes = await db.statisticScopeDao.getScopeForStatistic(row.id);
 
         return Statistic(
           type: StatisticType.values.firstWhere(
             (type) => type.name == row.type,
           ),
-          scopes: [],
+          scopes: scopes,
           timeframe: Timeframe.values.firstWhereOrNull(
             (t) => t.name == row.timeframe,
           ),

lib/data/dao/statistic_game_dao.dart

@@ -12,12 +12,13 @@ class StatisticGameDao extends DatabaseAccessor<AppDatabase>
   StatisticGameDao(super.db);
 
   /// Retrieves a list of games associated with a specific statistic.
-  Future<List<Game>> getGamesForStatistic(String statisticId) async {
+  Future<List<Game>?> getGamesForStatistic(String statisticId) async {
     final query = select(statisticGameTable).join([
       innerJoin(gameTable, gameTable.id.equalsExp(statisticGameTable.gameId)),
     ])..where(statisticGameTable.statisticId.equals(statisticId));
 
     final results = await query.map((row) => row.readTable(gameTable)).get();
+    if (results.isEmpty) return null;
     return results
         .map(
           (row) => Game(

lib/data/dao/statistic_group_dao.dart

@@ -12,7 +12,7 @@ class StatisticGroupDao extends DatabaseAccessor<AppDatabase>
   StatisticGroupDao(super.db);
 
   /// Retrieves a list of groups associated with a specific statistic.
-  Future<List<Group>> getGroupsForStatistic(String statisticId) async {
+  Future<List<Group>?> getGroupsForStatistic(String statisticId) async {
     final query = select(statisticGroupTable).join([
       innerJoin(
         groupTable,
@@ -21,6 +21,7 @@ class StatisticGroupDao extends DatabaseAccessor<AppDatabase>
     ])..where(statisticGroupTable.statisticId.equals(statisticId));
 
     final results = await query.map((row) => row.readTable(groupTable)).get();
+    if (results.isEmpty) return null;
     final groups = await Future.wait(
       results.map((result) async {
         final groupMembers = await db.playerGroupDao.getPlayersOfGroup(

lib/data/dao/statistic_scope_dao.dart

@@ -15,8 +15,8 @@ class StatisticScopeDao extends DatabaseAccessor<AppDatabase>
     final query = select(statisticScopeTable)
       ..where((tbl) => tbl.statisticId.equals(statisticId));
 
-    final results = await query.get();
-    return results
+    final result = await query.get();
+    return result
         .map(
           (row) => StatisticScope.values.firstWhere(
             (e) => e.name == row.scope,