fcs/lib/pages/staff/staff_privilege_editor.dart

import 'package:fcs/domain/entities/user.dart';
import 'package:fcs/domain/vo/privilege.dart';
import 'package:fcs/helpers/theme.dart';
import 'package:fcs/pages/staff/model/staff_model.dart';
import 'package:fcs/pages/widgets/local_app_bar.dart';
import 'package:fcs/pages/widgets/progress.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import '../main/util.dart';
import '../widgets/local_text.dart';

class StaffPrivilegeEditor extends StatefulWidget {
  final User staff;
  const StaffPrivilegeEditor({required this.staff});
  @override
  _StaffPrivilegeEditorState createState() => _StaffPrivilegeEditorState();
}

class _StaffPrivilegeEditorState extends State<StaffPrivilegeEditor> {
  bool _isLoading = false;
  late User _staff;
  List<Privilege> _privileges = [];

  @override
  void initState() {
    _staff = widget.staff;
    _privileges = Provider.of<StaffModel>(context, listen: false).privileges;
    _privileges.forEach((p) => _staff.privileges.contains(p.id)
        ? p.isChecked = true
        : p.isChecked = false);
    super.initState();
  }

  List<Widget> showprivilegeList(BuildContext context) {
    return _privileges.map((p) {
      return new ListTile(
          title: InkWell(
        onTap: () {
          setState(() {
            p.isChecked = p.isChecked == null ? true : !p.isChecked!;
          });
        },
        child: new Row(
          children: <Widget>[
            new Checkbox(
                value: p.isChecked == null ? false : p.isChecked,
                activeColor: primaryColor,
                side: BorderSide(color: Colors.black38, width: 2),
                onChanged: (bool? value) {
                  if (value != null)
                    setState(() {
                      p.isChecked = value;
                    });
                }),
            Padding(
              padding: const EdgeInsets.only(right: 8.0),
              child: Icon(p.iconData, size: 30, color: Colors.black38),
            ),
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: <Widget>[
                  new Text(
                    p.name ?? "",
                    style: TextStyle(fontSize: 15.0, color: Colors.black),
                  ),
                  Text(p.desc ?? "",
                      style: TextStyle(fontSize: 13, color: labelColor))
                ],
              ),
            ),
          ],
        ),
      ));
    }).toList();
  }

  @override
  Widget build(BuildContext context) {
    final saveButton = Padding(
      padding: const EdgeInsets.symmetric(horizontal: 30),
      child: fcsButton(
        context,
        getLocalString(context, 'btn.save'),
        callack: _save,
      ),
    );

    return LocalProgress(
        inAsyncCall: _isLoading,
        child: Scaffold(
          appBar: LocalAppBar(
              labelKey: "staff.privilege.title",
              backgroundColor: Colors.white,
              labelColor: primaryColor,
              arrowColor: primaryColor),
          body: Padding(
            padding: const EdgeInsets.only(left: 12.0, right: 12),
            child: ListView(
              children: <Widget>[
                Column(
                  children: [
                    Text(_staff.name ?? "",
                        style: TextStyle(color: Colors.black, fontSize: 18)),
                    Text(_staff.fcsID ?? "",
                        style: TextStyle(color: Colors.black, fontSize: 15)),
                  ],
                ),
                const SizedBox(height: 10),
                LocalText(context, 'staff.privilege.title',
                    color: Colors.black54, fontSize: 15),
                Column(
                  children: showprivilegeList(context),
                ),
                saveButton,
                SizedBox(height: 20)
              ],
            ),
          ),
        ));
  }

  List<String> privilegesIDs() {
    return this
        ._privileges
        .where((p) => p.isChecked!)
        .map((p) => p.id)
        .toList();
  }

  _save() async {
    setState(() {
      _isLoading = true;
    });

    StaffModel staffModel = Provider.of<StaffModel>(context, listen: false);
    try {
      await staffModel.updatePrivileges(widget.staff.id!, privilegesIDs());
      Navigator.pop(context, true);
    } catch (e) {
      showMsgDialog(context, "Error", e.toString());
    } finally {
      setState(() {
        _isLoading = false;
      });
    }
  }
}