Fitness Dashboard

import 'package:flutter/material.dart';

const _stats = [
  {'label': 'Steps', 'value': '8,432', 'target': '10,000', 'icon': Icons.directions_walk},
  {'label': 'Calories', 'value': '1,240', 'target': '2,000', 'icon': Icons.local_fire_department},
  {'label': 'Active', 'value': '45', 'unit': 'min', 'icon': Icons.timer},
];

class FitnessDashboard extends StatelessWidget {
  const FitnessDashboard({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Fitness Dashboard')),
      body: ListView(
        padding: const EdgeInsets.all(16),
        children: [
          Card(
            color: Theme.of(context).colorScheme.primaryContainer,
            child: Padding(
              padding: const EdgeInsets.all(20),
              child: Column(
                children: [
                  Text('Today\'s Progress',
                      style: Theme.of(context).textTheme.titleMedium),
                  const SizedBox(height: 8),
                  Row(
                    mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                    children: [
                      _StatChip(label: 'Workouts', value: '2'),
                      _StatChip(label: 'Rest', value: '6h'),
                    ],
                  ),
                ],
              ),
            ),
          ),
          const SizedBox(height: 16),
          ..._stats.map((s) => Card(
                margin: const EdgeInsets.only(bottom: 12),
                child: ListTile(
                  leading: CircleAvatar(
                    child: Icon(s['icon'] as IconData),
                  ),
                  title: Text(s['label'] as String),
                  subtitle: s['target'] != null
                      ? Text('Target: ${s['target']}')
                      : null,
                  trailing: Text(
                    [s['value'], ?s['unit']].join(' '),
                    style: Theme.of(context).textTheme.titleLarge,
                  ),
                ),
              )),
          const SizedBox(height: 16),
          Text('Quick Actions', style: Theme.of(context).textTheme.titleMedium),
          const SizedBox(height: 8),
          Row(
            children: [
              Expanded(
                child: FilledButton.icon(
                  onPressed: () => _showDemo(context, 'Start Workout (demo)'),
                  icon: const Icon(Icons.play_arrow),
                  label: const Text('Start Workout'),
                ),
              ),
              const SizedBox(width: 8),
              Expanded(
                child: OutlinedButton.icon(
                  onPressed: () => _showDemo(context, 'Log (demo)'),
                  icon: const Icon(Icons.add),
                  label: const Text('Log'),
                ),
              ),
            ],
          ),
        ],
      ),
    );
  }
}

class _StatChip extends StatelessWidget {
  final String label;
  final String value;

  const _StatChip({required this.label, required this.value});

  @override
  Widget build(BuildContext context) {
    return Column(
      children: [
        Text(value, style: Theme.of(context).textTheme.headlineSmall),
        Text(label, style: Theme.of(context).textTheme.bodySmall),
      ],
    );
  }
}

void _showDemo(BuildContext context, String message) {
  ScaffoldMessenger.of(context)
    ..hideCurrentSnackBar()
    ..showSnackBar(SnackBar(content: Text(message)));
}