remove questionmark

lib/data/dao/group_match_dao.dart

@@ -0,0 +1,98 @@
+import 'package:drift/drift.dart';
+import 'package:game_tracker/data/db/database.dart';
+import 'package:game_tracker/data/db/tables/group_match_table.dart';
+import 'package:game_tracker/data/dto/group.dart';
+
+part 'group_match_dao.g.dart';
+
+@DriftAccessor(tables: [GroupMatchTable])
+class GroupMatchDao extends DatabaseAccessor<AppDatabase>
+    with _$GroupMatchDaoMixin {
+  GroupMatchDao(super.db);
+
+  /// Associates a group with a match by inserting a record into the
+  /// [GroupMatchTable].
+  Future<void> addGroupToMatch({
+    required String matchId,
+    required String groupId,
+  }) async {
+    if (await matchHasGroup(matchId: matchId)) {
+      throw Exception('Match already has a group');
+    }
+    await into(groupMatchTable).insert(
+      GroupMatchTableCompanion.insert(groupId: groupId, matchId: matchId),
+      mode: InsertMode.insertOrIgnore,
+    );
+  }
+
+  /// Retrieves the [Group] associated with the given [matchId].
+  /// Returns `null` if no group is found.
+  Future<Group?> getGroupOfMatch({required String matchId}) async {
+    final result = await (select(
+      groupMatchTable,
+    )..where((g) => g.matchId.equals(matchId))).getSingleOrNull();
+
+    if (result == null) {
+      return null;
+    }
+
+    final group = await db.groupDao.getGroupById(groupId: result.groupId);
+    return group;
+  }
+
+  /// Checks if there is a group associated with the given [matchId].
+  /// Returns `true` if there is a group, otherwise `false`.
+  Future<bool> matchHasGroup({required String matchId}) async {
+    final count =
+        await (selectOnly(groupMatchTable)
+              ..where(groupMatchTable.matchId.equals(matchId))
+              ..addColumns([groupMatchTable.groupId.count()]))
+            .map((row) => row.read(groupMatchTable.groupId.count()))
+            .getSingle();
+    return (count ?? 0) > 0;
+  }
+
+  /// Checks if a specific group is associated with a specific match.
+  /// Returns `true` if the group is in the match, otherwise `false`.
+  Future<bool> isGroupInMatch({
+    required String matchId,
+    required String groupId,
+  }) async {
+    final count =
+        await (selectOnly(groupMatchTable)
+              ..where(
+                groupMatchTable.matchId.equals(matchId) &
+                    groupMatchTable.groupId.equals(groupId),
+              )
+              ..addColumns([groupMatchTable.groupId.count()]))
+            .map((row) => row.read(groupMatchTable.groupId.count()))
+            .getSingle();
+    return (count ?? 0) > 0;
+  }
+
+  /// Removes the association of a group from a match based on [groupId] and
+  /// [matchId].
+  /// Returns `true` if more than 0 rows were affected, otherwise `false`.
+  Future<bool> removeGroupFromMatch({
+    required String matchId,
+    required String groupId,
+  }) async {
+    final query = delete(groupMatchTable)
+      ..where((g) => g.matchId.equals(matchId) & g.groupId.equals(groupId));
+    final rowsAffected = await query.go();
+    return rowsAffected > 0;
+  }
+
+  /// Updates the group associated with a match to [newGroupId] based on
+  /// [matchId].
+  /// Returns `true` if more than 0 rows were affected, otherwise `false`.
+  Future<bool> updateGroupOfMatch({
+    required String matchId,
+    required String newGroupId,
+  }) async {
+    final updatedRows =
+        await (update(groupMatchTable)..where((g) => g.matchId.equals(matchId)))
+            .write(GroupMatchTableCompanion(groupId: Value(newGroupId)));
+    return updatedRows > 0;
+  }
+}

lib/data/dao/group_match_dao.g.dart

@@ -0,0 +1,10 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'group_match_dao.dart';
+
+// ignore_for_file: type=lint
+mixin _$GroupMatchDaoMixin on DatabaseAccessor<AppDatabase> {
+  $GroupTableTable get groupTable => attachedDatabase.groupTable;
+  $MatchTableTable get matchTable => attachedDatabase.matchTable;
+  $GroupMatchTableTable get groupMatchTable => attachedDatabase.groupMatchTable;
+}

lib/data/db/database.dart

@@ -1,10 +1,12 @@
 import 'package:drift/drift.dart';
 import 'package:drift_flutter/drift_flutter.dart';
 import 'package:game_tracker/data/dao/group_dao.dart';
+import 'package:game_tracker/data/dao/group_match_dao.dart';
 import 'package:game_tracker/data/dao/match_dao.dart';
 import 'package:game_tracker/data/dao/player_dao.dart';
 import 'package:game_tracker/data/dao/player_group_dao.dart';
 import 'package:game_tracker/data/dao/player_match_dao.dart';
+import 'package:game_tracker/data/db/tables/group_match_table.dart';
 import 'package:game_tracker/data/db/tables/group_table.dart';
 import 'package:game_tracker/data/db/tables/match_table.dart';
 import 'package:game_tracker/data/db/tables/player_group_table.dart';
@@ -20,14 +22,16 @@ part 'database.g.dart';
     GroupTable,
     MatchTable,
     PlayerGroupTable,
-    PlayerMatchTable
+    PlayerMatchTable,
+    GroupMatchTable,
   ],
   daos: [
     PlayerDao,
     GroupDao,
     MatchDao,
     PlayerGroupDao,
-    PlayerMatchDao
+    PlayerMatchDao,
+    GroupMatchDao,
   ],
 )
 class AppDatabase extends _$AppDatabase {

lib/data/db/tables/game_table.dart

@@ -1,14 +0,0 @@
-import 'package:drift/drift.dart';
-
-class GameTable extends Table {
-  TextColumn get id => text()();
-  TextColumn get name => text()();
-  TextColumn get ruleset => text()();
-  TextColumn get description => text().nullable()();
-  TextColumn get color => text().nullable()();
-  TextColumn get icon => text().nullable()();
-  DateTimeColumn get createdAt => dateTime()();
-
-  @override
-  Set<Column<Object>> get primaryKey => {id};
-}

lib/data/db/tables/group_match_table.dart

@@ -0,0 +1,13 @@
+import 'package:drift/drift.dart';
+import 'package:game_tracker/data/db/tables/group_table.dart';
+import 'package:game_tracker/data/db/tables/match_table.dart';
+
+class GroupMatchTable extends Table {
+  TextColumn get groupId =>
+      text().references(GroupTable, #id, onDelete: KeyAction.cascade)();
+  TextColumn get matchId =>
+      text().references(MatchTable, #id, onDelete: KeyAction.cascade)();
+
+  @override
+  Set<Column<Object>> get primaryKey => {groupId, matchId};
+}

lib/data/db/tables/group_table.dart

@@ -3,7 +3,6 @@ import 'package:drift/drift.dart';
 class GroupTable extends Table {
   TextColumn get id => text()();
   TextColumn get name => text()();
-  TextColumn get description => text().nullable()();
   DateTimeColumn get createdAt => dateTime()();
 
   @override

lib/data/db/tables/match_table.dart

@@ -1,15 +1,9 @@
 import 'package:drift/drift.dart';
-import 'package:game_tracker/data/db/tables/game_table.dart';
-import 'package:game_tracker/data/db/tables/group_table.dart';
 
 class MatchTable extends Table {
   TextColumn get id => text()();
-  TextColumn get gameId =>
+  TextColumn get name => text()();
-      text().references(GameTable, #id, onDelete: KeyAction.cascade)();
+  late final winnerId = text().nullable()();
-  TextColumn get groupId =>
-      text().references(GroupTable, #id, onDelete: KeyAction.cascade).nullable()(); // Nullable if not part of a group
-  TextColumn get name => text().nullable()();
-  TextColumn get notes => text().nullable()();
   DateTimeColumn get createdAt => dateTime()();
 
   @override

lib/data/db/tables/player_match_table.dart

@@ -1,16 +1,12 @@
 import 'package:drift/drift.dart';
 import 'package:game_tracker/data/db/tables/match_table.dart';
 import 'package:game_tracker/data/db/tables/player_table.dart';
-import 'package:game_tracker/data/db/tables/team_table.dart';
 
 class PlayerMatchTable extends Table {
   TextColumn get playerId =>
       text().references(PlayerTable, #id, onDelete: KeyAction.cascade)();
   TextColumn get matchId =>
       text().references(MatchTable, #id, onDelete: KeyAction.cascade)();
-  TextColumn get teamId =>
-      text().references(TeamTable, #id).nullable()();
-  IntColumn get score => integer()();
 
   @override
   Set<Column<Object>> get primaryKey => {playerId, matchId};

lib/data/db/tables/player_table.dart

@@ -3,7 +3,6 @@ import 'package:drift/drift.dart';
 class PlayerTable extends Table {
   TextColumn get id => text()();
   TextColumn get name => text()();
-  TextColumn get description => text().nullable()();
   DateTimeColumn get createdAt => dateTime()();
 
   @override

lib/data/db/tables/score_table.dart

@@ -1,16 +0,0 @@
-import 'package:drift/drift.dart';
-import 'package:game_tracker/data/db/tables/match_table.dart';
-import 'package:game_tracker/data/db/tables/player_table.dart';
-
-class ScoreTable extends Table {
-  TextColumn get playerId =>
-      text().references(PlayerTable, #id, onDelete: KeyAction.cascade)();
-  TextColumn get matchId =>
-      text().references(MatchTable, #id, onDelete: KeyAction.cascade)();
-  IntColumn get roundNumber => integer()();
-  IntColumn get score => integer()();
-  IntColumn get change => integer()();
-
-  @override
-  Set<Column<Object>> get primaryKey => {playerId, matchId, roundNumber};
-}

lib/data/db/tables/team_table.dart

@@ -1,9 +0,0 @@
-import 'package:drift/drift.dart';
-
-class TeamTable extends Table {
-  TextColumn get id => text()();
-  TextColumn get name => text()();
-
-  @override
-  Set<Column<Object>> get primaryKey => {id};
-}

lib/l10n/arb/app_de.arb

@@ -17,8 +17,12 @@
   "data_successfully_imported": "Daten erfolgreich importiert",
   "days_ago": "vor {count} Tagen",
   "delete": "Löschen",
-  "delete_all_data": "Alle Daten löschen",
+  "delete_all_data": "Alle Daten löschen?",
+  "delete_all_data": "Diese Gruppe löschen",
+  "edit_group": "Gruppe bearbeiten",
   "error_creating_group": "Fehler beim Erstellen der Gruppe, bitte erneut versuchen",
+  "error_deleting_group": "Fehler beim Löschen der Gruppe, bitte erneut versuchen",
+  "error_editing_group": "Fehler beim Bearbeiten der Gruppe, bitte erneut versuchen",
   "error_reading_file": "Fehler beim Lesen der Datei",
   "export_canceled": "Export abgebrochen",
   "export_data": "Daten exportieren",

lib/l10n/arb/app_en.arb

@@ -34,10 +34,10 @@
     "description": "Button text to create a match"
   },
   "@create_new_group": {
-    "description": "Button text to create a new group"
+    "description": "Appbar text to create a group"
   },
   "@create_new_match": {
-    "description": "Button text to create a new match"
+    "description": "Appbar text to create a match"
   },
   "@data_successfully_deleted": {
     "description": "Success message after deleting data"
@@ -62,9 +62,21 @@
   "@delete_all_data": {
     "description": "Confirmation dialog for deleting all data"
   },
+  "@delete_group": {
+    "description": "Confirmation dialog for deleting a group"
+  },
+  "@edit_group": {
+      "description": "Button & Appbar label for editing a group"
+  },
   "@error_creating_group": {
     "description": "Error message when group creation fails"
   },
+  "@error_deleting_group": {
+      "description": "Error message when group deletion fails"
+  },
+  "@error_editing_group": {
+      "description": "Error message when group editing fails"
+  },
   "@error_reading_file": {
     "description": "Error message when file cannot be read"
   },
@@ -277,8 +289,12 @@
   "data_successfully_imported": "Data successfully imported",
   "days_ago": "{count} days ago",
   "delete": "Delete",
-  "delete_all_data": "Delete all data",
+  "delete_all_data": "Delete all data?",
+  "delete_group": "Delete this group",
+  "edit_group": "Edit Group",
   "error_creating_group": "Error while creating group, please try again",
+  "error_deleting_group": "Error while deleting group, please try again",
+  "error_editing_group": "Error while editing group, please try again",
   "error_reading_file": "Error reading file",
   "export_canceled": "Export canceled",
   "export_data": "Export data",

lib/l10n/generated/app_localizations.dart

@@ -164,13 +164,13 @@ abstract class AppLocalizations {
   /// **'Create match'**
   String get create_match;
 
-  /// Button text to create a new group
+  /// Appbar text to create a group
   ///
   /// In en, this message translates to:
   /// **'Create new group'**
   String get create_new_group;
 
-  /// Button text to create a new match
+  /// Appbar text to create a match
   ///
   /// In en, this message translates to:
   /// **'Create new match'**
@@ -209,15 +209,39 @@ abstract class AppLocalizations {
   /// Confirmation dialog for deleting all data
   ///
   /// In en, this message translates to:
-  /// **'Delete all data'**
+  /// **'Delete all data?'**
   String get delete_all_data;
 
+  /// Confirmation dialog for deleting a group
+  ///
+  /// In en, this message translates to:
+  /// **'Delete this group?'**
+  String get delete_group;
+
+  /// Button & Appbar label for editing a group
+  ///
+  /// In en, this message translates to:
+  /// **'Edit Group'**
+  String get edit_group;
+
   /// Error message when group creation fails
   ///
   /// In en, this message translates to:
   /// **'Error while creating group, please try again'**
   String get error_creating_group;
 
+  /// Error message when group deletion fails
+  ///
+  /// In en, this message translates to:
+  /// **'Error while deleting group, please try again'**
+  String get error_deleting_group;
+
+  /// Error message when group editing fails
+  ///
+  /// In en, this message translates to:
+  /// **'Error while editing group, please try again'**
+  String get error_editing_group;
+
   /// Error message when file cannot be read
   ///
   /// In en, this message translates to:

lib/l10n/generated/app_localizations_de.dart

@@ -67,12 +67,26 @@ class AppLocalizationsDe extends AppLocalizations {
   String get delete => 'Löschen';
 
   @override
-  String get delete_all_data => 'Alle Daten löschen';
+  String get delete_all_data => 'Diese Gruppe löschen?';
+
+  @override
+  String get delete_group => 'Delete this group?';
+
+  @override
+  String get edit_group => 'Gruppe bearbeiten';
 
   @override
   String get error_creating_group =>
       'Fehler beim Erstellen der Gruppe, bitte erneut versuchen';
 
+  @override
+  String get error_deleting_group =>
+      'Fehler beim Löschen der Gruppe, bitte erneut versuchen';
+
+  @override
+  String get error_editing_group =>
+      'Fehler beim Bearbeiten der Gruppe, bitte erneut versuchen';
+
   @override
   String get error_reading_file => 'Fehler beim Lesen der Datei';
 

lib/l10n/generated/app_localizations_en.dart

@@ -67,12 +67,26 @@ class AppLocalizationsEn extends AppLocalizations {
   String get delete => 'Delete';
 
   @override
-  String get delete_all_data => 'Delete all data';
+  String get delete_all_data => 'Delete all data?';
+
+  @override
+  String get delete_group => 'Delete this group?';
+
+  @override
+  String get edit_group => 'Edit Group';
 
   @override
   String get error_creating_group =>
       'Error while creating group, please try again';
 
+  @override
+  String get error_deleting_group =>
+      'Error while deleting group, please try again';
+
+  @override
+  String get error_editing_group =>
+      'Error while editing group, please try again';
+
   @override
   String get error_reading_file => 'Error reading file';
 

lib/presentation/views/main_menu/group_view/create_group_view.dart

@@ -1,113 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:game_tracker/core/custom_theme.dart';
-import 'package:game_tracker/core/enums.dart';
-import 'package:game_tracker/data/db/database.dart';
-import 'package:game_tracker/data/dto/group.dart';
-import 'package:game_tracker/data/dto/player.dart';
-import 'package:game_tracker/l10n/generated/app_localizations.dart';
-import 'package:game_tracker/presentation/widgets/buttons/custom_width_button.dart';
-import 'package:game_tracker/presentation/widgets/player_selection.dart';
-import 'package:game_tracker/presentation/widgets/text_input/text_input_field.dart';
-import 'package:provider/provider.dart';
-
-class CreateGroupView extends StatefulWidget {
-  const CreateGroupView({super.key});
-
-  @override
-  State<CreateGroupView> createState() => _CreateGroupViewState();
-}
-
-class _CreateGroupViewState extends State<CreateGroupView> {
-  late final AppDatabase db;
-
-  /// Controller for the group name input field
-  final _groupNameController = TextEditingController();
-
-  /// List of currently selected players
-  List<Player> selectedPlayers = [];
-
-  @override
-  void initState() {
-    super.initState();
-    db = Provider.of<AppDatabase>(context, listen: false);
-    _groupNameController.addListener(() {
-      setState(() {});
-    });
-  }
-
-  @override
-  void dispose() {
-    _groupNameController.dispose();
-    super.dispose();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    final loc = AppLocalizations.of(context);
-    return ScaffoldMessenger(
-      child: Scaffold(
-        backgroundColor: CustomTheme.backgroundColor,
-        appBar: AppBar(title: Text(loc.create_new_group)),
-        body: SafeArea(
-          child: Column(
-            mainAxisAlignment: MainAxisAlignment.start,
-            children: [
-              Container(
-                margin: CustomTheme.standardMargin,
-                child: TextInputField(
-                  controller: _groupNameController,
-                  hintText: loc.group_name,
-                ),
-              ),
-              Expanded(
-                child: PlayerSelection(
-                  onChanged: (value) {
-                    setState(() {
-                      selectedPlayers = [...value];
-                    });
-                  },
-                ),
-              ),
-              CustomWidthButton(
-                text: loc.create_group,
-                sizeRelativeToWidth: 0.95,
-                buttonType: ButtonType.primary,
-                onPressed:
-                    (_groupNameController.text.isEmpty ||
-                        (selectedPlayers.length < 2))
-                    ? null
-                    : () async {
-                        bool success = await db.groupDao.addGroup(
-                          group: Group(
-                            name: _groupNameController.text.trim(),
-                            members: selectedPlayers,
-                          ),
-                        );
-                        if (!context.mounted) return;
-                        if (success) {
-                          Navigator.pop(context);
-                        } else {
-                          ScaffoldMessenger.of(context).showSnackBar(
-                            SnackBar(
-                              backgroundColor: CustomTheme.boxColor,
-                              content: Center(
-                                child: Text(
-                                  AppLocalizations.of(
-                                    context,
-                                  ).error_creating_group,
-                                  style: const TextStyle(color: Colors.white),
-                                ),
-                              ),
-                            ),
-                          );
-                        }
-                      },
-              ),
-              const SizedBox(height: 20),
-            ],
-          ),
-        ),
-      ),
-    );
-  }
-}

lib/presentation/views/main_menu/group_view/group_detail_view.dart

@@ -0,0 +1,181 @@
+import 'package:flutter/material.dart';
+import 'package:game_tracker/core/custom_theme.dart';
+import 'package:game_tracker/core/enums.dart';
+import 'package:game_tracker/data/db/database.dart';
+import 'package:game_tracker/data/dto/group.dart';
+import 'package:game_tracker/data/dto/player.dart';
+import 'package:game_tracker/l10n/generated/app_localizations.dart';
+import 'package:game_tracker/presentation/widgets/buttons/custom_width_button.dart';
+import 'package:game_tracker/presentation/widgets/player_selection.dart';
+import 'package:game_tracker/presentation/widgets/text_input/text_input_field.dart';
+import 'package:provider/provider.dart';
+
+class GroupDetailView extends StatefulWidget {
+  const GroupDetailView({super.key, this.groupToEdit});
+
+  /// The group to edit, if any
+  final Group? groupToEdit;
+
+  @override
+  State<GroupDetailView> createState() => _GroupDetailViewState();
+}
+
+class _GroupDetailViewState extends State<GroupDetailView> {
+  late final AppDatabase db;
+
+  /// GlobalKey for ScaffoldMessenger to show snackbars
+  final _scaffoldMessengerKey = GlobalKey<ScaffoldMessengerState>();
+
+  /// Controller for the group name input field
+  final _groupNameController = TextEditingController();
+
+  /// List of currently selected players
+  List<Player> selectedPlayers = [];
+
+  /// List of initially selected players (when editing a group)
+  List<Player> initialSelectedPlayers = [];
+
+  @override
+  void initState() {
+    super.initState();
+    db = Provider.of<AppDatabase>(context, listen: false);
+    if(widget.groupToEdit != null) {
+      _groupNameController.text = widget.groupToEdit!.name;
+      setState(() {
+        initialSelectedPlayers = widget.groupToEdit!.members;
+        selectedPlayers = widget.groupToEdit!.members;
+      });
+    }
+    _groupNameController.addListener(() {
+      setState(() {});
+    });
+  }
+
+  @override
+  void dispose() {
+    _groupNameController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final loc = AppLocalizations.of(context);
+    return ScaffoldMessenger(
+      key: _scaffoldMessengerKey,
+      child: Scaffold(
+        backgroundColor: CustomTheme.backgroundColor,
+        appBar: AppBar(title: Text(widget.groupToEdit == null ? loc.create_new_group : loc.edit_group), actions: widget.groupToEdit == null ? [] : [IconButton(icon: const Icon(Icons.delete), onPressed: () async {
+          if(widget.groupToEdit != null) {
+            showDialog<bool>(
+              context: context,
+              builder: (context) => AlertDialog(
+                title: Text(loc.delete_group),
+                content: Text(loc.this_cannot_be_undone),
+                actions: [
+                  TextButton(
+                    onPressed: () => Navigator.of(context).pop(false),
+                    child: Text(loc.cancel),
+                  ),
+                  TextButton(
+                    onPressed: () => Navigator.of(context).pop(true),
+                    child: Text(loc.delete),
+                  ),
+                ],
+              ),
+            ).then((confirmed) async {
+              if (confirmed == true && context.mounted) {
+                bool success = await db.groupDao.deleteGroup(groupId: widget.groupToEdit!.id);
+                if (!context.mounted) return;
+                if (success) {
+                  Navigator.pop(context);
+                } else {
+                  showSnackbar(message: loc.error_deleting_group);
+                }
+              }
+            });
+          }
+        },)],),
+        body: SafeArea(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.start,
+            children: [
+              Container(
+                margin: CustomTheme.standardMargin,
+                child: TextInputField(
+                  controller: _groupNameController,
+                  hintText: loc.group_name,
+                ),
+              ),
+              Expanded(
+                child: PlayerSelection(
+                  initialSelectedPlayers: initialSelectedPlayers,
+                  onChanged: (value) {
+                    setState(() {
+                      selectedPlayers = [...value];
+                    });
+                  },
+                ),
+              ),
+              CustomWidthButton(
+                text: widget.groupToEdit == null ? loc.create_group : loc.edit_group,
+                sizeRelativeToWidth: 0.95,
+                buttonType: ButtonType.primary,
+                onPressed:
+                    (_groupNameController.text.isEmpty ||
+                        (selectedPlayers.length < 2))
+                    ? null
+                    : () async {
+                        late bool success;
+                        if (widget.groupToEdit == null) {
+                          success = await db.groupDao.addGroup(
+                            group: Group(
+                              name: _groupNameController.text.trim(),
+                              members: selectedPlayers,
+                            ),
+                          );
+                        } else {
+                          //TODO: Implement group editing in database
+                          /*
+                          success = await db.groupDao.updateGroup(
+                            group: Group(
+                              id: widget.groupToEdit!.id,
+                              name: _groupNameController.text.trim(),
+                              members: selectedPlayers,
+                            ),
+                          );
+                          */
+                          success = false;
+                        }
+                        if (!context.mounted) return;
+                        if (success) {
+                          Navigator.pop(context);
+                        } else {
+                          showSnackbar(message: widget.groupToEdit == null ? loc.error_creating_group : loc.error_editing_group);
+                        }
+                      },
+              ),
+              const SizedBox(height: 20),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+  /// Displays a snackbar with the given message and optional action.
+  ///
+  /// [message] The message to display in the snackbar.
+  void showSnackbar({
+    required String message,
+  }) {
+    final messenger = _scaffoldMessengerKey.currentState;
+    if (messenger != null) {
+      messenger.hideCurrentSnackBar();
+      messenger.showSnackBar(
+        SnackBar(
+          content: Text(message, style: const TextStyle(color: Colors.white)),
+          backgroundColor: CustomTheme.boxColor,
+        ),
+      );
+    }
+  }
+}

lib/presentation/views/main_menu/group_view/groups_view.dart

@@ -6,7 +6,7 @@ import 'package:game_tracker/data/db/database.dart';
 import 'package:game_tracker/data/dto/group.dart';
 import 'package:game_tracker/data/dto/player.dart';
 import 'package:game_tracker/l10n/generated/app_localizations.dart';
-import 'package:game_tracker/presentation/views/main_menu/group_view/create_group_view.dart';
+import 'package:game_tracker/presentation/views/main_menu/group_view/group_detail_view.dart';
 import 'package:game_tracker/presentation/widgets/app_skeleton.dart';
 import 'package:game_tracker/presentation/widgets/buttons/custom_width_button.dart';
 import 'package:game_tracker/presentation/widgets/tiles/group_tile.dart';
@@ -73,7 +73,19 @@ class _GroupsViewState extends State<GroupsView> {
                       height: MediaQuery.paddingOf(context).bottom - 20,
                     );
                   }
-                  return GroupTile(group: groups[index]);
+                  return GroupTile(group: groups[index], onTap: () async {
+                    await Navigator.push(
+                      context,
+                      adaptivePageRoute(
+                        builder: (context) {
+                          return GroupDetailView(groupToEdit: groups[index]);
+                        },
+                      ),
+                    );
+                    setState(() {
+                      loadGroups();
+                    });
+                  });
                 },
               ),
             ),
@@ -88,7 +100,7 @@ class _GroupsViewState extends State<GroupsView> {
                   context,
                   adaptivePageRoute(
                     builder: (context) {
-                      return const CreateGroupView();
+                      return const GroupDetailView();
                     },
                   ),
                 );

lib/presentation/views/main_menu/match_view/create_match/create_match_view.dart

@@ -70,6 +70,9 @@ class _CreateMatchViewState extends State<CreateMatchView> {
   /// List of available rulesets with their localized string representations
   late final List<(Ruleset, String)> _rulesets;
 
+  /// GlobalKey for ScaffoldMessenger to show snackbars
+  final _scaffoldMessengerKey = GlobalKey<ScaffoldMessengerState>();
+
   @override
   void initState() {
     super.initState();
@@ -120,6 +123,7 @@ class _CreateMatchViewState extends State<CreateMatchView> {
   Widget build(BuildContext context) {
     final loc = AppLocalizations.of(context);
     return ScaffoldMessenger(
+      key: _scaffoldMessengerKey,
       child: Scaffold(
         backgroundColor: CustomTheme.backgroundColor,
         appBar: AppBar(title: Text(loc.create_new_match)),

lib/presentation/views/main_menu/settings_view.dart

@@ -4,7 +4,6 @@ import 'package:game_tracker/core/enums.dart';
 import 'package:game_tracker/l10n/generated/app_localizations.dart';
 import 'package:game_tracker/presentation/widgets/tiles/settings_list_tile.dart';
 import 'package:game_tracker/services/data_transfer_service.dart';
-import 'package:package_info_plus/package_info_plus.dart';
 
 class SettingsView extends StatefulWidget {
   const SettingsView({super.key});
@@ -14,126 +13,119 @@ class SettingsView extends StatefulWidget {
 }
 
 class _SettingsViewState extends State<SettingsView> {
-  PackageInfo _packageInfo = PackageInfo(
+
-    appName: 'n.A.',
+  /// GlobalKey for ScaffoldMessenger to show snackbars
-    packageName: 'n.A.',
+  final _scaffoldMessengerKey = GlobalKey<ScaffoldMessengerState>();
-    version: 'n.A.',
+
-    buildNumber: 'n.A.',
-  );
   @override
   void initState() {
     super.initState();
-    _initPackageInfo();
   }
 
   @override
   Widget build(BuildContext context) {
     final loc = AppLocalizations.of(context);
     return ScaffoldMessenger(
+      key: _scaffoldMessengerKey,
       child: Scaffold(
         appBar: AppBar(backgroundColor: CustomTheme.backgroundColor),
         backgroundColor: CustomTheme.backgroundColor,
-        body: Column(
+        body: LayoutBuilder(
-          mainAxisAlignment: MainAxisAlignment.start,
+          builder: (BuildContext context, BoxConstraints constraints) =>
-          crossAxisAlignment: CrossAxisAlignment.start,
+              SingleChildScrollView(
-          children: [
+                child: Column(
-            Padding(
+                  mainAxisAlignment: MainAxisAlignment.start,
-              padding: const EdgeInsets.fromLTRB(24, 0, 24, 10),
+                  crossAxisAlignment: CrossAxisAlignment.start,
-              child: Text(
+                  children: [
-                textAlign: TextAlign.start,
+                    Padding(
-                loc.menu,
+                      padding: const EdgeInsets.fromLTRB(24, 0, 24, 10),
-                style: const TextStyle(
+                      child: Text(
-                  fontSize: 28,
+                        textAlign: TextAlign.start,
-                  fontWeight: FontWeight.bold,
+                        loc.menu,
-                ),
+                        style: const TextStyle(
-              ),
+                          fontSize: 28,
-            ),
+                          fontWeight: FontWeight.bold,
-            Padding(
+                        ),
-              padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 10),
-              child: Text(
-                textAlign: TextAlign.start,
-                loc.settings,
-                style: const TextStyle(
-                  fontSize: 22,
-                  fontWeight: FontWeight.bold,
-                ),
-              ),
-            ),
-            SettingsListTile(
-              title: loc.export_data,
-              icon: Icons.upload_rounded,
-              suffixWidget: const Icon(Icons.arrow_forward_ios, size: 16),
-              onPressed: () async {
-                final String json = await DataTransferService.getAppDataAsJson(
-                  context,
-                );
-                final result = await DataTransferService.exportData(
-                  json,
-                  'game_tracker-data',
-                );
-                if (!context.mounted) return;
-                showExportSnackBar(context: context, result: result);
-              },
-            ),
-            SettingsListTile(
-              title: loc.import_data,
-              icon: Icons.download_rounded,
-              suffixWidget: const Icon(Icons.arrow_forward_ios, size: 16),
-              onPressed: () async {
-                final result = await DataTransferService.importData(context);
-                if (!context.mounted) return;
-                showImportSnackBar(context: context, result: result);
-              },
-            ),
-            SettingsListTile(
-              title: loc.delete_all_data,
-              icon: Icons.delete_rounded,
-              suffixWidget: const Icon(Icons.arrow_forward_ios, size: 16),
-              onPressed: () {
-                showDialog<bool>(
-                  context: context,
-                  builder: (context) => AlertDialog(
-                    title: Text('${loc.delete_all_data}?'),
-                    content: Text(loc.this_cannot_be_undone),
-                    actions: [
-                      TextButton(
-                        onPressed: () => Navigator.of(context).pop(false),
-                        child: Text(loc.cancel),
                       ),
-                      TextButton(
+                    ),
-                        onPressed: () => Navigator.of(context).pop(true),
+                    Padding(
-                        child: Text(loc.delete),
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 24,
+                        vertical: 10,
                       ),
-                    ],
+                      child: Text(
-                  ),
+                        textAlign: TextAlign.start,
-                ).then((confirmed) {
+                        loc.settings,
-                  if (confirmed == true && context.mounted) {
+                        style: const TextStyle(
-                    DataTransferService.deleteAllData(context);
+                          fontSize: 22,
-                    showSnackbar(
+                          fontWeight: FontWeight.bold,
-                      context: context,
+                        ),
-                      message: AppLocalizations.of(
+                      ),
-                        context,
+                    ),
-                      ).data_successfully_deleted,
+                    SettingsListTile(
-                    );
+                      title: loc.export_data,
-                  }
+                      icon: Icons.upload_rounded,
-                });
+                      suffixWidget: const Icon(Icons.arrow_forward_ios, size: 16),
-              },
+                      onPressed: () async {
-            ),
+                        final String json =
-            const Spacer(),
+                            await DataTransferService.getAppDataAsJson(context);
-            Padding(
+                        final result = await DataTransferService.exportData(
-              padding: const EdgeInsets.all(20),
+                          json,
-              child: Center(
+                          'game_tracker-data',
-                child: Text(
+                        );
-                  'Version ${_packageInfo.version} (${_packageInfo.buildNumber})',
+                        if (!context.mounted) return;
-                  style: TextStyle(
+                        showExportSnackBar(context: context, result: result);
-                    color: Colors.grey.shade600,
+                      },
-                    fontSize: 14,
+                    ),
-                    fontWeight: FontWeight.w600,
+                    SettingsListTile(
-                  ),
+                      title: loc.import_data,
+                      icon: Icons.download_rounded,
+                      suffixWidget: const Icon(Icons.arrow_forward_ios, size: 16),
+                      onPressed: () async {
+                        final result = await DataTransferService.importData(
+                          context,
+                        );
+                        if (!context.mounted) return;
+                        showImportSnackBar(context: context, result: result);
+                      },
+                    ),
+                    SettingsListTile(
+                      title: loc.delete_all_data,
+                      icon: Icons.delete_rounded,
+                      suffixWidget: const Icon(Icons.arrow_forward_ios, size: 16),
+                      onPressed: () {
+                        showDialog<bool>(
+                          context: context,
+                          builder: (context) => AlertDialog(
+                            title: Text(loc.delete_all_data),
+                            content: Text(loc.this_cannot_be_undone),
+                            actions: [
+                              TextButton(
+                                onPressed: () => Navigator.of(context).pop(false),
+                                child: Text(loc.cancel),
+                              ),
+                              TextButton(
+                                onPressed: () => Navigator.of(context).pop(true),
+                                child: Text(loc.delete),
+                              ),
+                            ],
+                          ),
+                        ).then((confirmed) {
+                          if (confirmed == true && context.mounted) {
+                            DataTransferService.deleteAllData(context);
+                            showSnackbar(
+                              context: context,
+                              message: AppLocalizations.of(
+                                context,
+                              ).data_successfully_deleted,
+                            );
+                          }
+                        });
+                      },
+                    ),
+                  ],
                 ),
               ),
-            ),
-          ],
         ),
       ),
     );
@@ -209,11 +201,4 @@ class _SettingsViewState extends State<SettingsView> {
       ),
     );
   }
-
-  Future<void> _initPackageInfo() async {
-    final info = await PackageInfo.fromPlatform();
-    setState(() {
-      _packageInfo = info;
-    });
-  }
 }

lib/presentation/widgets/player_selection.dart

@@ -70,6 +70,7 @@ class _PlayerSelectionState extends State<PlayerSelection> {
     super.initState();
     db = Provider.of<AppDatabase>(context, listen: false);
     suggestedPlayers = skeletonData;
+    selectedPlayers = widget.initialSelectedPlayers ?? [];
     loadPlayerList();
   }
 
@@ -99,7 +100,7 @@ class _PlayerSelectionState extends State<PlayerSelection> {
                 if (value.isEmpty) {
                   // If the search is empty, it shows all unselected players.
                   suggestedPlayers = allPlayers.where((player) {
-                    return !selectedPlayers.contains(player);
+                    return !selectedPlayers.any((p) => p.id == player.id);
                   }).toList();
                 } else {
                   // If there is input, it filters by name match (case-insensitive) and ensures
@@ -108,9 +109,7 @@ class _PlayerSelectionState extends State<PlayerSelection> {
                     final bool nameMatches = player.name.toLowerCase().contains(
                       value.toLowerCase(),
                     );
-                    final bool isNotSelected = !selectedPlayers.contains(
+                    final bool isNotSelected = !selectedPlayers.any((p) => p.id == player.id);
-                      player,
-                    );
                     return nameMatches && isNotSelected;
                   }).toList();
                 }
@@ -125,46 +124,49 @@ class _PlayerSelectionState extends State<PlayerSelection> {
           const SizedBox(height: 10),
           SizedBox(
             height: 50,
-            child: selectedPlayers.isEmpty
+            child: AppSkeleton(
-                ? Center(child: Text(loc.no_players_selected))
+              enabled: isLoading,
-                : SingleChildScrollView(
+              child: selectedPlayers.isEmpty
-                    scrollDirection: Axis.horizontal,
+                  ? Center(child: Text(loc.no_players_selected))
-                    child: Row(
+                  : SingleChildScrollView(
-                      children: [
+                      scrollDirection: Axis.horizontal,
-                        for (var player in selectedPlayers)
+                      child: Row(
-                          Padding(
+                        children: [
-                            padding: const EdgeInsets.only(right: 8.0),
+                          for (var player in selectedPlayers)
-                            child: TextIconTile(
+                            Padding(
-                              text: player.name,
+                              padding: const EdgeInsets.only(right: 8.0),
-                              onIconTap: () {
+                              child: TextIconTile(
-                                setState(() {
+                                text: player.name,
-                                  // Removes the player from the selection and notifies the parent.
+                                onIconTap: () {
-                                  selectedPlayers.remove(player);
+                                  setState(() {
-                                  widget.onChanged([...selectedPlayers]);
+                                    // Removes the player from the selection and notifies the parent.
+                                    selectedPlayers.remove(player);
+                                    widget.onChanged([...selectedPlayers]);
 
-                                  // Get the current search query
+                                    // Get the current search query
-                                  final currentSearch = _searchBarController
+                                    final currentSearch = _searchBarController
-                                      .text
+                                        .text
-                                      .toLowerCase();
+                                        .toLowerCase();
 
-                                  // If the player matches the current search query (or search is empty),
+                                    // If the player matches the current search query (or search is empty),
-                                  // they are added back to the `suggestedPlayers` and the list is re-sorted.
+                                    // they are added back to the `suggestedPlayers` and the list is re-sorted.
-                                  if (currentSearch.isEmpty ||
+                                    if (currentSearch.isEmpty ||
-                                      player.name.toLowerCase().contains(
+                                        player.name.toLowerCase().contains(
-                                        currentSearch,
+                                          currentSearch,
-                                      )) {
+                                        )) {
-                                    suggestedPlayers.add(player);
+                                      suggestedPlayers.add(player);
-                                    suggestedPlayers.sort(
+                                      suggestedPlayers.sort(
-                                      (a, b) => a.name.compareTo(b.name),
+                                        (a, b) => a.name.compareTo(b.name),
-                                    );
+                                      );
-                                  }
+                                    }
-                                });
+                                  });
-                              },
+                                },
+                              ),
                             ),
-                          ),
+                        ],
-                      ],
+                      ),
                     ),
-                  ),
+            ),
           ),
           const SizedBox(height: 10),
           Text(
@@ -243,7 +245,21 @@ class _PlayerSelectionState extends State<PlayerSelection> {
             // Otherwise, use the loaded players from the database.
             loadedPlayers.sort((a, b) => a.name.compareTo(b.name));
             allPlayers = [...loadedPlayers];
-            suggestedPlayers = [...loadedPlayers];
+            if (widget.initialSelectedPlayers != null) {
+              // Excludes already selected players from the suggested players list.
+              suggestedPlayers = loadedPlayers.where((p) => !widget.initialSelectedPlayers!.any((ip) => ip.id == p.id)).toList();
+              // Ensures that only players available for selection are pre-selected.
+              selectedPlayers = widget.initialSelectedPlayers!
+                  .where(
+                    (p) => allPlayers.any(
+                      (available) => available.id == p.id,
+                ),
+              )
+                  .toList();
+            } else {
+              // If no initial selection, all loaded players are suggested.
+              suggestedPlayers = [...loadedPlayers];
+            }
           }
           isLoading = false;
         });

lib/presentation/widgets/tiles/group_tile.dart

@@ -6,8 +6,9 @@ import 'package:game_tracker/presentation/widgets/tiles/text_icon_tile.dart';
 /// A tile widget that displays information about a group, including its name and members.
 /// - [group]: The group data to be displayed.
 /// - [isHighlighted]: Whether the tile should be highlighted.
+/// - [onTap]: An optional callback function to handle tap events.
 class GroupTile extends StatelessWidget {
-  const GroupTile({super.key, required this.group, this.isHighlighted = false});
+  const GroupTile({super.key, required this.group, this.isHighlighted = false, this.onTap});
 
   /// The group data to be displayed.
   final Group group;
@@ -15,61 +16,67 @@ class GroupTile extends StatelessWidget {
   /// Whether the tile should be highlighted.
   final bool isHighlighted;
 
+  /// Callback function to handle tap events.
+  final VoidCallback? onTap;
+
   @override
   Widget build(BuildContext context) {
-    return AnimatedContainer(
+    return GestureDetector(
-      margin: CustomTheme.standardMargin,
+      onTap: onTap,
-      padding: const EdgeInsets.symmetric(vertical: 5, horizontal: 10),
+      child: AnimatedContainer(
-      decoration: isHighlighted
+        margin: CustomTheme.standardMargin,
-          ? CustomTheme.highlightedBoxDecoration
+        padding: const EdgeInsets.symmetric(vertical: 5, horizontal: 10),
-          : CustomTheme.standardBoxDecoration,
+        decoration: isHighlighted
-      duration: const Duration(milliseconds: 150),
+            ? CustomTheme.highlightedBoxDecoration
-      child: Column(
+            : CustomTheme.standardBoxDecoration,
-        crossAxisAlignment: CrossAxisAlignment.start,
+        duration: const Duration(milliseconds: 150),
-        children: [
+        child: Column(
-          Row(
+          crossAxisAlignment: CrossAxisAlignment.start,
-            mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          children: [
-            children: [
+            Row(
-              Flexible(
+              mainAxisAlignment: MainAxisAlignment.spaceBetween,
-                child: Text(
+              children: [
-                  group.name,
+                Flexible(
-                  overflow: TextOverflow.ellipsis,
+                  child: Text(
-                  style: const TextStyle(
+                    group.name,
-                    fontWeight: FontWeight.bold,
+                    overflow: TextOverflow.ellipsis,
-                    fontSize: 18,
-                  ),
-                ),
-              ),
-              Row(
-                children: [
-                  Text(
-                    '${group.members.length}',
                     style: const TextStyle(
-                      fontWeight: FontWeight.w900,
+                      fontWeight: FontWeight.bold,
                       fontSize: 18,
                     ),
                   ),
-                  const SizedBox(width: 3),
+                ),
-                  const Icon(Icons.group, size: 22),
+                Row(
-                ],
+                  children: [
-              ),
+                    Text(
-            ],
+                      '${group.members.length}',
-          ),
+                      style: const TextStyle(
-          const SizedBox(height: 5),
+                        fontWeight: FontWeight.w900,
-          Wrap(
+                        fontSize: 18,
-            alignment: WrapAlignment.start,
+                      ),
-            crossAxisAlignment: WrapCrossAlignment.start,
+                    ),
-            spacing: 12.0,
+                    const SizedBox(width: 3),
-            runSpacing: 8.0,
+                    const Icon(Icons.group, size: 22),
-            children: <Widget>[
+                  ],
-              for (var member in [
+                ),
-                ...group.members,
+              ],
-              ]..sort((a, b) => a.name.compareTo(b.name)))
+            ),
-                TextIconTile(text: member.name, iconEnabled: false),
+            const SizedBox(height: 5),
-            ],
+            Wrap(
-          ),
+              alignment: WrapAlignment.start,
-          const SizedBox(height: 2.5),
+              crossAxisAlignment: WrapCrossAlignment.start,
-        ],
+              spacing: 12.0,
+              runSpacing: 8.0,
+              children: <Widget>[
+                for (var member in [
+                  ...group.members,
+                ]..sort((a, b) => a.name.compareTo(b.name)))
+                  TextIconTile(text: member.name, iconEnabled: false),
+              ],
+            ),
+            const SizedBox(height: 2.5),
+          ],
+        ),
       ),
     );
   }

pubspec.yaml

@@ -1,7 +1,7 @@
 name: game_tracker
 description: "Game Tracking App for Card Games"
 publish_to: 'none'
-version: 0.0.4+101
+version: 0.0.3+93
 
 environment:
   sdk: ^3.8.1
@@ -22,7 +22,6 @@ dependencies:
   intl: any
   flutter_localizations:
     sdk: flutter
-  package_info_plus: ^9.0.0
 
 dev_dependencies:
   flutter_test: