provider.dart

import 'package:bastion/providers/data.dart';
import 'package:fluentui_system_icons/fluentui_system_icons.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:hive/hive.dart';
import 'package:window_size/window_size.dart';

enum NavOption {
  converter,
  profiles,
  settings,
}

extension NavOptionExt on NavOption {
  String get name {
    switch(this) {
      case NavOption.converter:
        return 'Converter';
      case NavOption.profiles:
        return 'Profiles';
      case NavOption.settings:
        return 'Settings';
      default:
        throw Exception("No name for unknown route");
    }
  }

  IconData get icon {
    switch(this) {
      case NavOption.converter:
        return FluentIcons.arrow_swap_24_regular;
      case NavOption.profiles:
        return FluentIcons.people_team_32_regular;
      case NavOption.settings:
        return FluentIcons.settings_28_regular;
      default:
        throw Exception("No icon for unknown route");
    }
  }

  static NavOption load(String name) {
    switch(name) {
      case 'Converter':
        return NavOption.converter;
      case 'Profiles':
        return NavOption.profiles;
      case 'Settings':
        return NavOption.settings;
      default:
        throw Exception("No route of that name found");
    }
  }
}

class NavigationProvider with ChangeNotifier {
  static List<NavOption> routes = [
      NavOption.converter,
      NavOption.profiles,
      NavOption.settings,
  ];

  final _box = Hive.box(DataBox.navigation.name);

  // State.
  int _current = 0;
  int get current => _current;

  bool _showingDrawer = false;
  bool get showingDrawer => _showingDrawer;

  // Methods.

  NavigationProvider() {
    String? cached = _box.get('current');

    final current = cached == null ? NavigationProvider.routes[_current] : NavOptionExt.load(cached);

    _current = routes.indexOf(current);

    setWindowTitle('Bastion : ${current.name}');
  }
  
  void move(NavOption to) {
    final incoming = NavigationProvider.routes.indexOf(to);

    if(_current == incoming) {
      return;
    }

    _showingDrawer = false;
    _current = incoming;
    
    _box.put('current', to.name);

    setWindowTitle('Bastion : ${to.name}');

    notifyListeners();
  }

  void showDrawer(bool show) {
    _showingDrawer = show;

    notifyListeners();
  }
}