// notification_bell.dart — 顶栏通知铃铛(带未读红点)
//
// 桌面顶栏(content_top_bar.dart)在主题切换旁挂一枚铃铛，点击进 NavView.notifications。
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../pangolin_theme.dart';
import 'pangolin_icons.dart';

class NotificationBell extends ConsumerWidget {
  const NotificationBell({super.key, required this.onTap, this.hasUnread = false});

  final VoidCallback onTap;
  final bool hasUnread;

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final c = context.pangolin;

    return InkWell(
      onTap: onTap,
      borderRadius: BorderRadius.circular(PangolinRadius.sm),
      child: Padding(
        padding: const EdgeInsets.all(6),
        child: Stack(clipBehavior: Clip.none, children: [
          Icon(PangolinIcons.bell, size: 18, color: c.fg2),
          // TODO(spec-3): 未读态来自 notices provider，现暂由调用方写死演示。
          if (hasUnread)
            Positioned(
              top: -1,
              right: -1,
              child: Container(
                width: 7,
                height: 7,
                decoration: BoxDecoration(color: c.danger, shape: BoxShape.circle),
              ),
            ),
        ]),
      ),
    );
  }
}