import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'app_colors.dart';

/// Genex Issuer Console - Material 3 Theme
///
/// 企业端主题：更沉稳的企业管理风格
class AppTheme {
  AppTheme._();

  static ThemeData get light => ThemeData(
        useMaterial3: true,
        brightness: Brightness.light,
        colorScheme: const ColorScheme.light(
          primary: AppColors.primary,
          primaryContainer: AppColors.primaryContainer,
          secondary: AppColors.success,
          error: AppColors.error,
          surface: AppColors.surface,
          onPrimary: Colors.white,
          onSurface: AppColors.textPrimary,
          outline: AppColors.border,
        ),
        scaffoldBackgroundColor: AppColors.background,
        appBarTheme: const AppBarTheme(
          elevation: 0,
          scrolledUnderElevation: 0.5,
          centerTitle: true,
          backgroundColor: AppColors.surface,
          foregroundColor: AppColors.textPrimary,
          surfaceTintColor: Colors.transparent,
          systemOverlayStyle: SystemUiOverlayStyle(
            statusBarColor: Colors.transparent,
            statusBarIconBrightness: Brightness.dark,
          ),
        ),
        navigationBarTheme: NavigationBarThemeData(
          backgroundColor: AppColors.surface,
          indicatorColor: AppColors.primaryContainer,
          surfaceTintColor: Colors.transparent,
          elevation: 0,
          height: 80,
          labelBehavior: NavigationDestinationLabelBehavior.alwaysShow,
        ),
        cardTheme: CardThemeData(
          elevation: 0,
          color: AppColors.surface,
          surfaceTintColor: Colors.transparent,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(12),
            side: const BorderSide(color: AppColors.borderLight, width: 1),
          ),
          margin: EdgeInsets.zero,
        ),
        elevatedButtonTheme: ElevatedButtonThemeData(
          style: ElevatedButton.styleFrom(
            backgroundColor: AppColors.primary,
            foregroundColor: Colors.white,
            elevation: 0,
            minimumSize: const Size(double.infinity, 52),
            shape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(12),
            ),
          ),
        ),
        inputDecorationTheme: InputDecorationTheme(
          filled: true,
          fillColor: AppColors.gray50,
          contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
          border: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: BorderSide.none,
          ),
          enabledBorder: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: const BorderSide(color: AppColors.borderLight, width: 1),
          ),
          focusedBorder: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: const BorderSide(color: AppColors.primary, width: 1.5),
          ),
        ),
      );
}