import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

import '../../../providers/note_provider.dart';

/// 首页仪表盘上「笔记」卡片的摘要：笔记总数 + 最近更新时间。
///
/// 数据来自 [noteOverviewProvider]（只取 1 条），不碰列表页那套状态。
class NoteModuleSummary extends ConsumerWidget {
  const NoteModuleSummary({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final page = ref.watch(noteOverviewProvider).value;
    final latest = (page == null || page.items.isEmpty)
        ? null
        : page.items.first.updateTime;

    return Row(
      children: [
        Expanded(child: _item('共', page == null ? null : '${page.total} 篇')),
        Expanded(child: _item('最近更新', latest == null ? null : _shortDate(latest))),
      ],
    );
  }

  /// 后端给的是 `yyyy-MM-dd HH:mm`，卡片上只要 `MM-dd`
  String _shortDate(String value) =>
      value.length >= 10 ? value.substring(5, 10) : value;

  Widget _item(String label, String? value) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        Text(label, style: const TextStyle(fontSize: 11, color: Color(0xFF8D6E63))),
        const SizedBox(height: 3),
        Text(
          value ?? '--',
          style: const TextStyle(
            fontSize: 14.5,
            fontWeight: FontWeight.bold,
            color: Color(0xFF5D4037),
          ),
        ),
      ],
    );
  }
}