cofounderella/lib/themes/theme_provider.dart

import 'package:cofounderella/constants.dart';
import 'package:cofounderella/themes/dark_mode.dart';
import 'package:cofounderella/themes/light_mode.dart';
import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';

class ThemeProvider extends ChangeNotifier {
  ThemeData _themeData;

  ThemeProvider({required bool initialIsDarkMode})
      : _themeData = initialIsDarkMode ? darkMode : lightMode;

  ThemeData get themeData => _themeData;

  bool get isDarkMode => _themeData == darkMode;

  set themeData(ThemeData themeData) {
    _themeData = themeData;
    notifyListeners();
    _saveTheme();
  }

  void toggleTheme() {
    if (_themeData == lightMode) {
      themeData = darkMode;
    } else {
      themeData = lightMode;
    }
  }

  void _saveTheme() async {
    final prefs = await SharedPreferences.getInstance();
    prefs.setBool(Constants.prefKeyThemeDarkMode, isDarkMode);
  }
}