import 'package:flutter/material.dart';

class AppTheme {
  static ThemeData get darkTheme {
    return ThemeData(
      useMaterial3: true,
      brightness: Brightness.dark,
      scaffoldBackgroundColor: Colors.black,
      canvasColor: Colors.black,
      cardColor: const Color(0xFF121212),
      primaryColor: Colors.blue,
      colorScheme: const ColorScheme.dark(
        primary: Colors.blue,
        secondary: Colors.blueAccent,
        surface: Color(0xFF121212),
        onSurface: Colors.white,
      ),
      appBarTheme: const AppBarTheme(
        backgroundColor: Colors.black,
        elevation: 0,
        titleTextStyle: TextStyle(
          color: Colors.white,
          fontSize: 20,
          fontWeight: FontWeight.bold,
        ),
        iconTheme: IconThemeData(color: Colors.white),
      ),
      bottomNavigationBarTheme: const BottomNavigationBarThemeData(
        backgroundColor: Color(0xFF121212),
        selectedItemColor: Colors.blue,
        unselectedItemColor: Colors.grey,
        type: BottomNavigationBarType.fixed,
      ),
      cardTheme: CardThemeData(
        color: const Color(0xFF1E1E1E),
        elevation: 2,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(8),
        ),
      ),
      textTheme: const TextTheme(
        headlineLarge: TextStyle(
            color: Colors.white, fontSize: 32, fontWeight: FontWeight.bold),
        headlineMedium: TextStyle(
            color: Colors.white, fontSize: 28, fontWeight: FontWeight.bold),
        headlineSmall: TextStyle(
            color: Colors.white, fontSize: 24, fontWeight: FontWeight.bold),
        titleLarge: TextStyle(
            color: Colors.white, fontSize: 20, fontWeight: FontWeight.w600),
        titleMedium: TextStyle(
            color: Colors.white, fontSize: 18, fontWeight: FontWeight.w500),
        titleSmall: TextStyle(
            color: Colors.white, fontSize: 16, fontWeight: FontWeight.w500),
        bodyLarge: TextStyle(color: Colors.white, fontSize: 16),
        bodyMedium: TextStyle(color: Colors.white70, fontSize: 14),
        bodySmall: TextStyle(color: Colors.white60, fontSize: 12),
        labelLarge: TextStyle(
            color: Colors.white, fontSize: 14, fontWeight: FontWeight.w500),
        labelMedium: TextStyle(color: Colors.white70, fontSize: 12),
        labelSmall: TextStyle(color: Colors.white60, fontSize: 10),
      ),
      iconTheme: const IconThemeData(color: Colors.white),
      dividerTheme: const DividerThemeData(
        color: Color(0xFF2A2A2A),
        thickness: 1,
      ),
      switchTheme: SwitchThemeData(
        thumbColor: WidgetStateProperty.resolveWith<Color?>(
            (Set<WidgetState> states) {
          if (states.contains(WidgetState.selected)) {
            return Colors.blue;
          }
          return Colors.grey;
        }),
        trackColor: WidgetStateProperty.resolveWith<Color?>(
            (Set<WidgetState> states) {
          if (states.contains(WidgetState.selected)) {
            return Colors.blue.withOpacity(0.5);
          }
          return Colors.grey.withOpacity(0.5);
        }),
      ),
      dialogTheme: DialogThemeData(
        backgroundColor: const Color(0xFF1E1E1E),
        elevation: 8,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(12),
        ),
        titleTextStyle: const TextStyle(
            color: Colors.white, fontSize: 20, fontWeight: FontWeight.bold),
        contentTextStyle: const TextStyle(color: Colors.white70, fontSize: 16),
      ),
      floatingActionButtonTheme: const FloatingActionButtonThemeData(
        backgroundColor: Colors.blue,
        foregroundColor: Colors.white,
      ),
    );
  }

  static const Color primaryBlack = Colors.black;
  static const Color secondaryBlack = Color(0xFF121212);
  static const Color tertiaryBlack = Color(0xFF1E1E1E);
  static const Color dividerColor = Color(0xFF2A2A2A);
  static const Color textPrimary = Colors.white;
  static const Color textSecondary = Color(0xFFB3B3B3);
  static const Color textTertiary = Color(0xFF808080);
  static const Color accentBlue = Colors.blue;
  static const Color accentBlueLight = Color(0xFF64B5F6);
  static const Color errorRed = Color(0xFFCF6679);
  static const Color successGreen = Color(0xFF4CAF50);
  static const Color warningOrange = Color(0xFFFF9800);

  static const TextStyle titleLarge = TextStyle(
    fontSize: 20,
    fontWeight: FontWeight.bold,
    color: textPrimary,
  );

  static const TextStyle titleMedium = TextStyle(
    fontSize: 18,
    fontWeight: FontWeight.w600,
    color: textPrimary,
  );

  static const TextStyle bodyLarge = TextStyle(
    fontSize: 16,
    color: textPrimary,
  );

  static const TextStyle bodyMedium = TextStyle(
    fontSize: 14,
    color: textSecondary,
  );

  static const TextStyle caption = TextStyle(
    fontSize: 12,
    color: textTertiary,
  );

  static const TextStyle labelLarge = TextStyle(
    fontSize: 14,
    fontWeight: FontWeight.w500,
    color: textPrimary,
  );

  static const double spacingXS = 4.0;
  static const double spacingS = 8.0;
  static const double spacingM = 16.0;
  static const double spacingL = 24.0;
  static const double spacingXL = 32.0;
  static const double spacingXXL = 48.0;

  static const double radiusS = 4.0;
  static const double radiusM = 8.0;
  static const double radiusL = 12.0;
  static const double radiusXL = 16.0;

  static List<BoxShadow> get cardShadow => [
        BoxShadow(
          color: Colors.black.withOpacity(0.3),
          blurRadius: 8,
          offset: const Offset(0, 2),
        ),
      ];

  static List<BoxShadow> get buttonShadow => [
        BoxShadow(
          color: Colors.black.withOpacity(0.2),
          blurRadius: 4,
          offset: const Offset(0, 2),
        ),
      ];
}