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

import '../../../providers/health_provider.dart';

/// 首页仪表盘上「强宝健康」卡片的摘要：当前体重 + 今日热量。
///
/// 只是两个数字，所以单独取 —— 不复用主页那套 provider（那些会拉明细），
/// 为了一行字把整天饮食记录取回来是不划算的。
class HealthModuleSummary extends ConsumerWidget {
  const HealthModuleSummary({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final goal = ref.watch(weightGoalProvider).value;
    final totals = ref.watch(dietTodayTotalsProvider).value;

    final weight = goal?.currentWeight;

    return Row(
      children: [
        Expanded(
          child: _item(
            '当前体重',
            weight == null ? null : '${_fmt(weight)} kg',
          ),
        ),
        Expanded(
          child: _item(
            '今日热量',
            totals == null || totals.itemCount == 0
                ? null
                : '${_fmt(totals.energyKcal)} kcal',
          ),
        ),
      ],
    );
  }

  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 ?? '--',
          maxLines: 1,
          overflow: TextOverflow.ellipsis,
          style: const TextStyle(
            fontSize: 14.5,
            fontWeight: FontWeight.bold,
            color: Color(0xFF5D4037),
          ),
        ),
      ],
    );
  }
}

String _fmt(num value) {
  if (value == value.roundToDouble()) return value.round().toString();
  return value.toStringAsFixed(1);
}