adguard-home-manager/lib/widgets/navigation_rail.dart

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';

import 'package:adguard_home_manager/providers/logs_provider.dart';
import 'package:adguard_home_manager/config/app_screens.dart';
import 'package:adguard_home_manager/models/app_screen.dart';
import 'package:adguard_home_manager/providers/app_config_provider.dart';
import 'package:adguard_home_manager/providers/servers_provider.dart';

class SideNavigationRail extends StatelessWidget {
  const SideNavigationRail({super.key});

  @override
  Widget build(BuildContext context) {
    final serversProvider = Provider.of<ServersProvider>(context);
    final appConfigProvider = Provider.of<AppConfigProvider>(context);
    final logsProvider = Provider.of<LogsProvider>(context);

    List<AppScreen> screens = serversProvider.selectedServer != null
      ? screensServerConnected 
      : screensSelectServer;

    String translatedName(String key) {
      switch (key) {
        case 'home':
          return AppLocalizations.of(context)!.home;

        case 'settings':
          return AppLocalizations.of(context)!.settings;

        case 'connect':
          return AppLocalizations.of(context)!.connect;

        case 'clients':
          return AppLocalizations.of(context)!.clients;

        case 'logs':
          return AppLocalizations.of(context)!.logs;

        case 'filters':
          return AppLocalizations.of(context)!.filters;

        default:
          return '';
      }
    }

    if ((serversProvider.selectedServer == null || serversProvider.apiClient2 == null) && appConfigProvider.selectedScreen > 1) {
      appConfigProvider.setSelectedScreen(0);
    }

    return NavigationRail(
      selectedIndex: (serversProvider.selectedServer == null || serversProvider.apiClient2 == null) && appConfigProvider.selectedScreen > 1
        ? 0
        : appConfigProvider.selectedScreen,
      destinations: screens.map((screen) => NavigationRailDestination(
        icon: Icon(
          screen.icon,
          color: screens[appConfigProvider.selectedScreen] == screen
            ? Theme.of(context).colorScheme.onSecondaryContainer
            : Theme.of(context).colorScheme.onSurfaceVariant,
        ), 
        label: Text(translatedName(screen.name))
      )).toList(),
      onDestinationSelected: (value) {
        // Reset clients tab to 0 when changing screen
        if (value != 1) {
          appConfigProvider.setSelectedClientsTab(0);
        }
        // Reset logs filters when changing screen
        if (value != 2) {
          logsProvider.resetFilters();
        }
        // Reset settings selected screen
        if (value != screens.length-1) {
          appConfigProvider.setSelectedSettingsScreen(screen: null);
        }
        appConfigProvider.setSelectedScreen(value);
      },
      labelType: NavigationRailLabelType.all,
      useIndicator: true,
      groupAlignment: 0,
      backgroundColor: Theme.of(context).colorScheme.primary.withOpacity(0.05),
    );
  }
}