Display Forez presence

lib/ui/screens/group_sections/forez_presence_section.dart

@@ -1,3 +1,10 @@
+import 'package:comunic/helpers/forez_presence_helper.dart';
+import 'package:comunic/helpers/users_helper.dart';
+import 'package:comunic/lists/forez_presences_set.dart';
+import 'package:comunic/lists/users_list.dart';
+import 'package:comunic/ui/widgets/account_image_widget.dart';
+import 'package:comunic/ui/widgets/async_screen_widget.dart';
+import 'package:comunic/ui/widgets/forez_presence_calendar_widget.dart';
 import 'package:flutter/material.dart';
 
 /// Forez presence section
@@ -5,13 +12,77 @@ import 'package:flutter/material.dart';
 /// @author Pierre Hubert
 
 class ForezPresenceSection extends StatefulWidget {
+  final int groupID;
+
+  const ForezPresenceSection({
+    Key key,
+    @required this.groupID,
+  })  : assert(groupID != null),
+        super(key: key);
+
   @override
   _ForezPresenceSectionState createState() => _ForezPresenceSectionState();
 }
 
 class _ForezPresenceSectionState extends State<ForezPresenceSection> {
+  PresenceSet _presences;
+  UsersList _users;
+  DateTime _currentDay = DateTime.now();
+
+  List<int> get _currentListOfUsers => _presences.getUsersAtDate(_currentDay);
+
+  Future<void> _refresh() async {
+    await ForezPresenceHelper.refreshCache(widget.groupID);
+
+    _presences = await ForezPresenceHelper.getAll(widget.groupID);
+    _users = await UsersHelper().getList(_presences.usersID);
+  }
+
   @override
   Widget build(BuildContext context) {
-    return Container();
+    return Stack(
+      children: <Widget>[
+        AsyncScreenWidget(
+          onReload: _refresh,
+          onBuild: _buildList,
+          errorMessage: "Erreur lors du chargement des présences !",
+        ),
+        Positioned(
+          right: 10,
+          bottom: 10,
+          child: FloatingActionButton(
+            backgroundColor: Colors.green,
+            onPressed: () {},
+            child: Icon(Icons.edit),
+          ),
+        )
+      ],
+    );
+  }
+
+  Widget _buildList() {
+    final currentList = _currentListOfUsers;
+    return ListView.builder(
+      itemCount: currentList.length + 1,
+      itemBuilder: (c, i) =>
+          i == 0 ? _buildCalendar() : _buildUser(currentList[i - 1]),
+    );
+  }
+
+  Widget _buildCalendar() => PresenceCalendarWidget(
+        presenceSet: _presences,
+        mode: CalendarDisplayMode.MULTIPLE_USERS,
+        selectedDay: _currentDay,
+        onDayClicked: _selectDay,
+      );
+
+  void _selectDay(DateTime dt) => setState(() => _currentDay = dt);
+
+  Widget _buildUser(int userID) {
+    final user = _users.getUser(userID);
+    return ListTile(
+      leading: AccountImageWidget(user: user),
+      title: Text(user.fullName),
+    );
   }
 }