HiddingselAppOriginal/lib/appflow/view/navigation_drawer.dart

import 'package:flutter/material.dart';
import 'package:hiddingsel_app/appflow/view/menu_pages/article_list.dart';
import 'package:hiddingsel_app/appflow/view/menu_pages/pois.dart';
import 'package:hiddingsel_app/appflow/view/menu_pages/companies.dart';
import 'package:hiddingsel_app/appflow/view/menu_pages/das_dorf.dart';
import 'package:hiddingsel_app/todo/calendar.dart';
import 'package:hiddingsel_app/constants/constant.dart';

import 'menu_pages/contact.dart';
import 'menu_pages/search.dart';
import 'menu_pages/buerger_fuer_buerger.dart';
import 'menu_pages/organisations.dart';
import 'menu_pages/settings.dart';
import 'widgets/app_bar.dart';
import 'menu_pages/imprint.dart';

class NavigationDrawer extends StatelessWidget with NavigationDrawerItem {
  final Function(PreferredSizeWidget appBar, Widget body) _onChange;

  const NavigationDrawer(this._onChange);

  @override
  String get title => 'Menü';

  @override
  Widget build(BuildContext context) => Scaffold(
        appBar: this.getAppBar(),
        body: Container(
          padding: EdgeInsets.all(UIShapes.paddingMax),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              _getListTile(Search(_onChange), null, context),
              Spacer(
                flex: 1,
              ),
              _getListTile(ArticleListView(_onChange), null, context),
              Spacer(
                flex: 1,
              ),
              _getListTile(CalendarListPage(), null, context),
              Spacer(
                flex: 3,
              ),
              _getListTile(DasDorfListView(_onChange), Icons.arrow_forward_ios, context),
              Spacer(
                flex: 1,
              ),
              _getListTile(PoiListView(_onChange), Icons.arrow_forward_ios, context),
              Spacer(
                flex: 1,
              ),
              _getListTile(OrganisationListView(_onChange), Icons.arrow_forward_ios, context),
              Spacer(
                flex: 1,
              ),
              _getListTile(CompanyListView(_onChange), Icons.arrow_forward_ios, context),
              Spacer(
                flex: 1,
              ),
              _getListTile(BuergerFuerBuergerView(), null, context),
              Spacer(
                flex: 3,
              ),
              _getListTile(SettingsView(), null, context),
              Spacer(
                flex: 1,
              ),
              _getListTile(ImprintView(), null, context),
              Spacer(
                flex: 1,
              ),
              _getListTile(ContactView(), null, context),
              Spacer(
                flex: 7,
              ),
            ],
          ),
        ),
      );

  Widget _getListTile(NavigationDrawerItem item, IconData? icon, BuildContext context) =>
      GestureDetector(
        child: Row(children:
            [
              Expanded(
                child:Text(
                item.title.toUpperCase(),
                style:
                UITheme.theme.textTheme.headlineSmall?.apply(color: UIColors.grey4),
              ),),
              Icon(icon, color: UIColors.grey4,),
            ]
  ),
        onTap: () {
          _onChange(
            item.getAppBar(),
            item,
          );
          Navigator.pop(context);
        },
      );
}

class NavigationBottomBar extends StatelessWidget {
  final Function(PreferredSizeWidget appBar, Widget body) _onChange;

  const NavigationBottomBar(onChange) : _onChange = onChange;

  @override
  Widget build(BuildContext context) => Container(
        padding: EdgeInsets.fromLTRB(UIShapes.paddingMax, UIShapes.paddingMax,
            UIShapes.paddingMax, UIShapes.paddingMax),
        color: UIColors.grey6,
        child: SafeArea( child: Row(
          children: [
            Spacer(),
            _getListTile(ArticleListView(_onChange)),
            Spacer(),
            Text(
              '|',
              style: UITheme.theme.textTheme.titleLarge,
            ),
            Spacer(),
            _getListTile(CalendarListPage()),
            Spacer(),
            Text(
              '|',
              style: UITheme.theme.textTheme.titleLarge,
            ),
            Spacer(),
            _getListTile(ContactView()),
            Spacer(),
          ],
        ),
      ),);

  Widget _getListTile(NavigationDrawerItem item) =>
      GestureDetector(
        child: Text(
          item.title.toUpperCase(),
          style: UITheme.theme.textTheme.titleLarge,
        ),
        onTap: () {
          _onChange(
            item.getAppBar(),
            item,
          );
        },
      );
}

mixin NavigationDrawerItem on Widget {
  String get title;

  PreferredSizeWidget getAppBar({String? optionalTitle}) => HiddingselAppBar(Text(optionalTitle??title.toUpperCase()));
}