87 lines
3.3 KiB
Dart
87 lines
3.3 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import '../theme/app_theme.dart';
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/// Manages dynamic branding and app theme settings fetched from the Odoo backend.
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/// Automatically handles offline caching via SharedPreferences.
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class ThemeManager extends ChangeNotifier {
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static final ThemeManager instance = ThemeManager._internal();
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ThemeManager._internal();
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Color _primaryColor = AppTheme.primary;
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Color _secondaryColor = AppTheme.secondary;
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Color _backgroundColor = AppTheme.surface;
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Color _backgroundGradientColor = const Color(0xFFF3EAD3);
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String _brandLogo = '';
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Color get primaryColor => _primaryColor;
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Color get secondaryColor => _secondaryColor;
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Color get backgroundColor => _backgroundColor;
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Color get backgroundGradientColor => _backgroundGradientColor;
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String get brandLogo => _brandLogo;
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ThemeData get themeData => AppTheme.getTheme(
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primaryColor: _primaryColor,
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secondaryColor: _secondaryColor,
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backgroundColor: _backgroundColor,
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);
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/// Initialize cached settings on app launch
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Future<void> initialize() async {
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final prefs = await SharedPreferences.getInstance();
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final primHex = prefs.getString('theme_primary_color');
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final secHex = prefs.getString('theme_secondary_color');
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final bgHex = prefs.getString('theme_background_color');
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final bgGradHex = prefs.getString('theme_background_gradient_color');
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_brandLogo = prefs.getString('theme_brand_logo') ?? '';
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if (primHex != null) {
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_primaryColor = _parseHexColor(primHex) ?? AppTheme.primary;
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}
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if (secHex != null) {
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_secondaryColor = _parseHexColor(secHex) ?? AppTheme.secondary;
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}
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if (bgHex != null) {
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_backgroundColor = _parseHexColor(bgHex) ?? AppTheme.surface;
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}
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if (bgGradHex != null) {
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_backgroundGradientColor = _parseHexColor(bgGradHex) ?? const Color(0xFFF3EAD3);
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}
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}
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/// Update theme options and persist them to SharedPreferences
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Future<void> updateConfig({
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required String primaryHex,
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required String secondaryHex,
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required String backgroundHex,
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required String backgroundGradientHex,
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required String brandLogoB64,
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}) async {
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final prefs = await SharedPreferences.getInstance();
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await prefs.setString('theme_primary_color', primaryHex);
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await prefs.setString('theme_secondary_color', secondaryHex);
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await prefs.setString('theme_background_color', backgroundHex);
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await prefs.setString('theme_background_gradient_color', backgroundGradientHex);
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await prefs.setString('theme_brand_logo', brandLogoB64);
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_primaryColor = _parseHexColor(primaryHex) ?? AppTheme.primary;
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_secondaryColor = _parseHexColor(secondaryHex) ?? AppTheme.secondary;
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_backgroundColor = _parseHexColor(backgroundHex) ?? AppTheme.surface;
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_backgroundGradientColor = _parseHexColor(backgroundGradientHex) ?? const Color(0xFFF3EAD3);
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_brandLogo = brandLogoB64;
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notifyListeners();
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}
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Color? _parseHexColor(String hexString) {
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try {
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final buffer = StringBuffer();
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if (hexString.length == 6 || hexString.length == 7) buffer.write('ff');
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buffer.write(hexString.replaceFirst('#', ''));
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return Color(int.parse(buffer.toString(), radix: 16));
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} catch (_) {
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return null;
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}
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}
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}
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