import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:google_nav_bar/google_nav_bar.dart';

class MainWrapper extends StatelessWidget {
  final StatefulNavigationShell navigationShell;

  const MainWrapper({super.key, required this.navigationShell});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      extendBody: true, // 必须开启，让内容流过导航栏下方
      body: navigationShell,
      bottomNavigationBar: Container(
        margin: const EdgeInsets.fromLTRB(20, 0, 20, 32), // 稍微调高底部间距
        decoration: BoxDecoration(
          borderRadius: BorderRadius.circular(32),
          boxShadow: [
            BoxShadow(
              color: Colors.black.withOpacity(0.12), // 强化阴影，增加悬浮感
              blurRadius: 30,
              offset: const Offset(0, 10),
            ),
          ],
        ),
        child: ClipRRect(
          borderRadius: BorderRadius.circular(32),
          child: BackdropFilter(
            filter: ImageFilter.blur(sigmaX: 16, sigmaY: 16), // 增加模糊半径
            child: Container(
              decoration: BoxDecoration(
                // 降低白色透明度到 0.4，减少“灰蒙蒙”的白雾感，让背景颜色更亮地透出来
                color: Colors.white.withOpacity(0.4),
                borderRadius: BorderRadius.circular(32),
                border: Border.all(
                  // 使用极细的深色半透明边框勾勒轮廓
                  color: Colors.black.withOpacity(0.08),
                  width: 0.5,
                ),
              ),
              child: SafeArea(
                top: false,
                child: Padding(
                  padding: const EdgeInsets.symmetric(
                    horizontal: 10,
                    vertical: 8,
                  ),
                  child: GNav(
                    rippleColor: Colors.transparent,
                    hoverColor: Colors.transparent,
                    gap: 10,
                    // 【关键修改】选中状态：纯黑背景 + 纯白图标/文字
                    activeColor: Colors.white,
                    tabBackgroundColor: Colors.black,
                    // 未选中状态：深黑色
                    color: Colors.black87,
                    iconSize: 24,
                    padding: const EdgeInsets.symmetric(
                      horizontal: 18,
                      vertical: 10,
                    ),
                    duration: const Duration(milliseconds: 300),
                    selectedIndex: navigationShell.currentIndex,
                    onTabChange: (index) {
                      navigationShell.goBranch(index);
                    },
                    tabs: const [
                      GButton(icon: Icons.grid_view_rounded, text: '状态'),
                      GButton(icon: Icons.auto_awesome_rounded, text: 'AI'),
                      GButton(icon: Icons.person_rounded, text: '我的'),
                    ],
                  ),
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}