import 'package:flutter/material.dart';
import '../constants/app_constants.dart';

class AppTheme {
  static ThemeData get lightTheme {
    return ThemeData(
      useMaterial3: true,
      colorScheme: ColorScheme.fromSeed(
        seedColor: AppConstants.primaryColor,
        brightness: Brightness.light,
        primary: AppConstants.primaryColor,
        secondary: AppConstants.secondaryColor,
        surface: AppConstants.surfaceColor,
        error: AppConstants.errorColor,
      ),

      // AppBar 主题
      appBarTheme: const AppBarTheme(
        backgroundColor: AppConstants.primaryColor,
        foregroundColor: Colors.white,
        elevation: 0,
        centerTitle: true,
        titleTextStyle: TextStyle(
          color: Colors.white,
          fontSize: 18,
          fontWeight: FontWeight.w500,
        ),
        iconTheme: IconThemeData(color: Colors.white),
      ),

      // 按钮主题
      elevatedButtonTheme: ElevatedButtonThemeData(
        style: ElevatedButton.styleFrom(
          backgroundColor: AppConstants.primaryColor,
          foregroundColor: Colors.white,
          elevation: 2,
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
          padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
        ),
      ),

      textButtonTheme: TextButtonThemeData(
        style: TextButton.styleFrom(
          foregroundColor: AppConstants.primaryColor,
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        ),
      ),

      outlinedButtonTheme: OutlinedButtonThemeData(
        style: OutlinedButton.styleFrom(
          foregroundColor: AppConstants.primaryColor,
          side: const BorderSide(color: AppConstants.primaryColor),
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
          padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
        ),
      ),

      // 卡片主题
      cardTheme: CardThemeData(
        elevation: 2,
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
        color: AppConstants.surfaceColor,
      ),

      // 输入框主题
      inputDecorationTheme: InputDecorationTheme(
        border: OutlineInputBorder(
          borderRadius: BorderRadius.circular(8),
          borderSide: const BorderSide(color: Colors.grey),
        ),
        focusedBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(8),
          borderSide: const BorderSide(
            color: AppConstants.primaryColor,
            width: 2,
          ),
        ),
        errorBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(8),
          borderSide: const BorderSide(color: AppConstants.errorColor),
        ),
        filled: true,
        fillColor: Colors.grey[50],
        contentPadding: const EdgeInsets.symmetric(
          horizontal: 16,
          vertical: 12,
        ),
      ),

      // 浮动按钮主题
      floatingActionButtonTheme: const FloatingActionButtonThemeData(
        backgroundColor: AppConstants.primaryColor,
        foregroundColor: Colors.white,
        elevation: 4,
      ),

      // 底部导航栏主题
      bottomNavigationBarTheme: const BottomNavigationBarThemeData(
        backgroundColor: AppConstants.surfaceColor,
        selectedItemColor: AppConstants.primaryColor,
        unselectedItemColor: Colors.grey,
        type: BottomNavigationBarType.fixed,
        elevation: 8,
      ),

      // 图标主题
      iconTheme: const IconThemeData(
        color: AppConstants.primaryColor,
        size: 24,
      ),

      // 文本主题
      textTheme: const TextTheme(
        displayLarge: TextStyle(
          fontSize: 32,
          fontWeight: FontWeight.bold,
          color: Colors.black87,
        ),
        displayMedium: TextStyle(
          fontSize: 28,
          fontWeight: FontWeight.bold,
          color: Colors.black87,
        ),
        displaySmall: TextStyle(
          fontSize: 24,
          fontWeight: FontWeight.bold,
          color: Colors.black87,
        ),
        headlineLarge: TextStyle(
          fontSize: 22,
          fontWeight: FontWeight.w600,
          color: Colors.black87,
        ),
        headlineMedium: TextStyle(
          fontSize: 20,
          fontWeight: FontWeight.w600,
          color: Colors.black87,
        ),
        headlineSmall: TextStyle(
          fontSize: 18,
          fontWeight: FontWeight.w600,
          color: Colors.black87,
        ),
        titleLarge: TextStyle(
          fontSize: 16,
          fontWeight: FontWeight.w500,
          color: Colors.black87,
        ),
        titleMedium: TextStyle(
          fontSize: 14,
          fontWeight: FontWeight.w500,
          color: Colors.black87,
        ),
        titleSmall: TextStyle(
          fontSize: 12,
          fontWeight: FontWeight.w500,
          color: Colors.black87,
        ),
        bodyLarge: TextStyle(
          fontSize: 16,
          fontWeight: FontWeight.normal,
          color: Colors.black87,
        ),
        bodyMedium: TextStyle(
          fontSize: 14,
          fontWeight: FontWeight.normal,
          color: Colors.black87,
        ),
        bodySmall: TextStyle(
          fontSize: 12,
          fontWeight: FontWeight.normal,
          color: Colors.black54,
        ),
        labelLarge: TextStyle(
          fontSize: 14,
          fontWeight: FontWeight.w500,
          color: Colors.black87,
        ),
        labelMedium: TextStyle(
          fontSize: 12,
          fontWeight: FontWeight.w500,
          color: Colors.black87,
        ),
        labelSmall: TextStyle(
          fontSize: 10,
          fontWeight: FontWeight.w500,
          color: Colors.black54,
        ),
      ),
    );
  }

  static ThemeData get darkTheme {
    return ThemeData(
      useMaterial3: true,
      colorScheme: ColorScheme.fromSeed(
        seedColor: AppConstants.primaryColor,
        brightness: Brightness.dark,
        primary: AppConstants.primaryColor,
        secondary: AppConstants.secondaryColor,
        surface: const Color(0xFF1E1E1E),
        error: AppConstants.errorColor,
      ),

      // AppBar 主题
      appBarTheme: const AppBarTheme(
        backgroundColor: Color(0xFF1E1E1E),
        foregroundColor: Colors.white,
        elevation: 0,
        centerTitle: true,
        titleTextStyle: TextStyle(
          color: Colors.white,
          fontSize: 18,
          fontWeight: FontWeight.w500,
        ),
        iconTheme: IconThemeData(color: Colors.white),
      ),

      // 卡片主题
      cardTheme: CardThemeData(
        elevation: 2,
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
        color: const Color(0xFF1E1E1E),
      ),

      // 输入框主题
      inputDecorationTheme: InputDecorationTheme(
        border: OutlineInputBorder(
          borderRadius: BorderRadius.circular(8),
          borderSide: BorderSide(color: Colors.grey[600]!),
        ),
        focusedBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(8),
          borderSide: const BorderSide(
            color: AppConstants.primaryColor,
            width: 2,
          ),
        ),
        errorBorder: OutlineInputBorder(
          borderRadius: BorderRadius.circular(8),
          borderSide: const BorderSide(color: AppConstants.errorColor),
        ),
        filled: true,
        fillColor: const Color(0xFF2A2A2A),
        contentPadding: const EdgeInsets.symmetric(
          horizontal: 16,
          vertical: 12,
        ),
      ),
    );
  }
}