generate static method

String generate(String themeColor)

Generates a complete theme configuration file with light and dark modes

Implementation

static String generate(String themeColor) {
  final colorData = _getThemeColors(themeColor);

  return '''
import 'package:flutter/material.dart';

class AppTheme {
// Color definitions
static const Color primaryLight = Color(${colorData['primaryLight']});
static const Color primaryDark = Color(${colorData['primaryDark']});
static const Color secondaryLight = Color(${colorData['secondaryLight']});
static const Color secondaryDark = Color(${colorData['secondaryDark']});
static const Color accentLight = Color(${colorData['accentLight']});
static const Color accentDark = Color(${colorData['accentDark']});

// Light Theme
static ThemeData lightTheme = ThemeData(
  useMaterial3: true,
  brightness: Brightness.light,
  colorScheme: ColorScheme.light(
    primary: primaryLight,
    secondary: secondaryLight,
    tertiary: accentLight,
    surface: Colors.white,
    background: const Color(0xFFF5F5F5),
    error: const Color(0xFFD32F2F),
    onPrimary: Colors.white,
    onSecondary: Colors.white,
    onSurface: const Color(0xFF1A1A1A),
    onBackground: const Color(0xFF1A1A1A),
    onError: Colors.white,
  ),
  scaffoldBackgroundColor: const Color(0xFFF5F5F5),
  appBarTheme: const AppBarTheme(
    elevation: 0,
    centerTitle: true,
    backgroundColor: Colors.white,
    foregroundColor: Color(0xFF1A1A1A),
    iconTheme: IconThemeData(color: Color(0xFF1A1A1A)),
  ),
  cardTheme: CardThemeData(
    elevation: 2,
    shape: RoundedRectangleBorder(
      borderRadius: BorderRadius.circular(16),
    ),
    color: Colors.white,
  ),
  elevatedButtonTheme: ElevatedButtonThemeData(
    style: ElevatedButton.styleFrom(
      elevation: 0,
      padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(12),
      ),
      textStyle: const TextStyle(
        fontSize: 16,
        fontWeight: FontWeight.w600,
      ),
    ),
  ),
  inputDecorationTheme: InputDecorationTheme(
    filled: true,
    fillColor: Colors.white,
    contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
    border: OutlineInputBorder(
      borderRadius: BorderRadius.circular(12),
      borderSide: const BorderSide(color: Color(0xFFE0E0E0)),
    ),
    enabledBorder: OutlineInputBorder(
      borderRadius: BorderRadius.circular(12),
      borderSide: const BorderSide(color: Color(0xFFE0E0E0)),
    ),
    focusedBorder: OutlineInputBorder(
      borderRadius: BorderRadius.circular(12),
      borderSide: BorderSide(color: primaryLight, width: 2),
    ),
  ),
  textTheme: const TextTheme(
    displayLarge: TextStyle(fontSize: 32, fontWeight: FontWeight.bold, color: Color(0xFF1A1A1A)),
    displayMedium: TextStyle(fontSize: 28, fontWeight: FontWeight.bold, color: Color(0xFF1A1A1A)),
    displaySmall: TextStyle(fontSize: 24, fontWeight: FontWeight.bold, color: Color(0xFF1A1A1A)),
    headlineMedium: TextStyle(fontSize: 20, fontWeight: FontWeight.w600, color: Color(0xFF1A1A1A)),
    headlineSmall: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: Color(0xFF1A1A1A)),
    titleLarge: TextStyle(fontSize: 16, fontWeight: FontWeight.w600, color: Color(0xFF1A1A1A)),
    bodyLarge: TextStyle(fontSize: 16, fontWeight: FontWeight.normal, color: Color(0xFF1A1A1A)),
    bodyMedium: TextStyle(fontSize: 14, fontWeight: FontWeight.normal, color: Color(0xFF666666)),
    bodySmall: TextStyle(fontSize: 12, fontWeight: FontWeight.normal, color: Color(0xFF999999)),
  ),
);

// Dark Theme
static ThemeData darkTheme = ThemeData(
  useMaterial3: true,
  brightness: Brightness.dark,
  colorScheme: ColorScheme.dark(
    primary: primaryDark,
    secondary: secondaryDark,
    tertiary: accentDark,
    surface: const Color(0xFF1E1E1E),
    background: const Color(0xFF121212),
    error: const Color(0xFFCF6679),
    onPrimary: Colors.white,
    onSecondary: Colors.white,
    onSurface: const Color(0xFFE0E0E0),
    onBackground: const Color(0xFFE0E0E0),
    onError: Colors.black,
  ),
  scaffoldBackgroundColor: const Color(0xFF121212),
  appBarTheme: const AppBarTheme(
    elevation: 0,
    centerTitle: true,
    backgroundColor: Color(0xFF1E1E1E),
    foregroundColor: Color(0xFFE0E0E0),
    iconTheme: IconThemeData(color: Color(0xFFE0E0E0)),
  ),
  cardTheme: CardThemeData(
    elevation: 2,
    shape: RoundedRectangleBorder(
      borderRadius: BorderRadius.circular(16),
    ),
    color: const Color(0xFF1E1E1E),
  ),
  elevatedButtonTheme: ElevatedButtonThemeData(
    style: ElevatedButton.styleFrom(
      elevation: 0,
      padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(12),
      ),
      textStyle: const TextStyle(
        fontSize: 16,
        fontWeight: FontWeight.w600,
      ),
    ),
  ),
  inputDecorationTheme: InputDecorationTheme(
    filled: true,
    fillColor: const Color(0xFF1E1E1E),
    contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
    border: OutlineInputBorder(
      borderRadius: BorderRadius.circular(12),
      borderSide: const BorderSide(color: Color(0xFF424242)),
    ),
    enabledBorder: OutlineInputBorder(
      borderRadius: BorderRadius.circular(12),
      borderSide: const BorderSide(color: Color(0xFF424242)),
    ),
    focusedBorder: OutlineInputBorder(
      borderRadius: BorderRadius.circular(12),
      borderSide: BorderSide(color: primaryDark, width: 2),
    ),
  ),
  textTheme: const TextTheme(
    displayLarge: TextStyle(fontSize: 32, fontWeight: FontWeight.bold, color: Color(0xFFE0E0E0)),
    displayMedium: TextStyle(fontSize: 28, fontWeight: FontWeight.bold, color: Color(0xFFE0E0E0)),
    displaySmall: TextStyle(fontSize: 24, fontWeight: FontWeight.bold, color: Color(0xFFE0E0E0)),
    headlineMedium: TextStyle(fontSize: 20, fontWeight: FontWeight.w600, color: Color(0xFFE0E0E0)),
    headlineSmall: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: Color(0xFFE0E0E0)),
    titleLarge: TextStyle(fontSize: 16, fontWeight: FontWeight.w600, color: Color(0xFFE0E0E0)),
    bodyLarge: TextStyle(fontSize: 16, fontWeight: FontWeight.normal, color: Color(0xFFE0E0E0)),
    bodyMedium: TextStyle(fontSize: 14, fontWeight: FontWeight.normal, color: Color(0xFFB0B0B0)),
    bodySmall: TextStyle(fontSize: 12, fontWeight: FontWeight.normal, color: Color(0xFF808080)),
  ),
);

static Map<String, String> _getThemeColors(String theme) {
  switch (theme) {
    case 'blue':
      return {
        'primaryLight': '0xFF2196F3',
        'primaryDark': '0xFF42A5F5',
        'secondaryLight': '0xFF1976D2',
        'secondaryDark': '0xFF1E88E5',
        'accentLight': '0xFF03A9F4',
        'accentDark': '0xFF29B6F6',
      };
    case 'green':
      return {
        'primaryLight': '0xFF4CAF50',
        'primaryDark': '0xFF66BB6A',
        'secondaryLight': '0xFF388E3C',
        'secondaryDark': '0xFF43A047',
        'accentLight': '0xFF8BC34A',
        'accentDark': '0xFF9CCC65',
      };
    case 'coffee':
      return {
        'primaryLight': '0xFF795548',
        'primaryDark': '0xFF8D6E63',
        'secondaryLight': '0xFF5D4037',
        'secondaryDark': '0xFF6D4C41',
        'accentLight': '0xFFBCAAA4',
        'accentDark': '0xFFA1887F',
      };
    case 'purple':
      return {
        'primaryLight': '0xFF9C27B0',
        'primaryDark': '0xFFAB47BC',
        'secondaryLight': '0xFF7B1FA2',
        'secondaryDark': '0xFF8E24AA',
        'accentLight': '0xFFE91E63',
        'accentDark': '0xFFEC407A',
      };
    case 'orange':
      return {
        'primaryLight': '0xFFFF9800',
        'primaryDark': '0xFFFFB74D',
        'secondaryLight': '0xFFF57C00',
        'secondaryDark': '0xFFFB8C00',
        'accentLight': '0xFFFF5722',
        'accentDark': '0xFFFF7043',
      };
    default:
      return {
        'primaryLight': '0xFF2196F3',
        'primaryDark': '0xFF42A5F5',
        'secondaryLight': '0xFF1976D2',
        'secondaryDark': '0xFF1E88E5',
        'accentLight': '0xFF03A9F4',
        'accentDark': '0xFF29B6F6',
      };
  }
}
}
''';
}