comunicmobile/lib/ui/widgets/group_following_widget.dart

import 'package:comunic/helpers/groups_helper.dart';
import 'package:comunic/models/group.dart';
import 'package:comunic/ui/widgets/safe_state.dart';
import 'package:comunic/utils/intl_utils.dart';
import 'package:comunic/utils/ui_utils.dart';
import 'package:flutter/material.dart';

/// Group following status widget
///
/// @author Pierre Hubert

class GroupFollowingWidget extends StatefulWidget {
  final Group group;
  final Function() onUpdated;

  const GroupFollowingWidget(
      {Key key, @required this.group, @required this.onUpdated})
      : assert(group != null),
        assert(onUpdated != null),
        super(key: key);

  @override
  _GroupFollowingWidgetState createState() => _GroupFollowingWidgetState();
}

class _GroupFollowingWidgetState extends SafeState<GroupFollowingWidget> {
  Group get _group => widget.group;

  @override
  Widget build(BuildContext context) {
    if (!_group.isAtLeastMember) return Container();

    return InkWell(
      child: Text(
        _group.following ? tr("Following") : tr("Follow"),
        style: TextStyle(color: Colors.blue),
      ),
      onTap: () => _toggleFollowing(),
    );
  }

  /// Toggle following status
  void _toggleFollowing() async {
    if (!await GroupsHelper().setFollowing(_group.id, !_group.following)) {
      showSimpleSnack(context, tr("Could not update following status!"));
      return;
    }

    setState(() {
      _group.following = !_group.following;

      this.widget.onUpdated();
    });
  }
}