car-interface-android/lib/features/home/widgets/obd_card.dart

import 'package:flutter/material.dart';

import '../../../core/theme/app_colors.dart';
import '../../../core/widgets/surface_card.dart';

/// Compact live car data shown only while the ELM327 adapter is delivering
/// fresh speed/throttle values.
class ObdCard extends StatelessWidget {
  const ObdCard({
    super.key,
    required this.speedKmh,
    required this.throttlePercent,
    this.compact = false,
  });

  final double? speedKmh;
  final double? throttlePercent;
  final bool compact;

  @override
  Widget build(BuildContext context) {
    final colors = context.colors;
    final theme = Theme.of(context);
    final throttle = (throttlePercent ?? 0).clamp(0.0, 100.0);

    return SurfaceCard(
      padding: EdgeInsets.fromLTRB(
        compact ? 16 : 20,
        compact ? 13 : 16,
        compact ? 16 : 20,
        compact ? 13 : 16,
      ),
      radius: 24,
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            children: [
              Container(
                width: 7,
                height: 7,
                decoration: BoxDecoration(
                  color: colors.accent,
                  shape: BoxShape.circle,
                ),
              ),
              const SizedBox(width: 8),
              Text(
                'OBD-II',
                style: theme.textTheme.labelMedium?.copyWith(
                  color: colors.inkMuted,
                  letterSpacing: 0.8,
                ),
              ),
              const Spacer(),
              Text(
                'LIVE',
                style: theme.textTheme.labelSmall?.copyWith(
                  color: colors.accent,
                  fontWeight: FontWeight.w700,
                  letterSpacing: 0.8,
                ),
              ),
            ],
          ),
          SizedBox(height: compact ? 6 : 8),
          Row(
            crossAxisAlignment: CrossAxisAlignment.end,
            children: [
              Text(
                speedKmh == null ? '—' : speedKmh!.round().toString(),
                style: theme.textTheme.displaySmall?.copyWith(
                  fontSize: compact ? 38 : 46,
                  height: 0.95,
                  fontFeatures: const [FontFeature.tabularFigures()],
                ),
              ),
              const SizedBox(width: 7),
              Padding(
                padding: const EdgeInsets.only(bottom: 5),
                child: Text(
                  'km/h',
                  style: theme.textTheme.bodySmall?.copyWith(
                    color: colors.inkMuted,
                  ),
                ),
              ),
            ],
          ),
          SizedBox(height: compact ? 7 : 9),
          Row(
            children: [
              Text(
                'Throttle',
                style: theme.textTheme.bodySmall?.copyWith(
                  color: colors.inkMuted,
                ),
              ),
              const Spacer(),
              Text(
                '${throttle.round()}%',
                style: theme.textTheme.labelMedium?.copyWith(
                  color: colors.ink,
                  fontFeatures: const [FontFeature.tabularFigures()],
                ),
              ),
            ],
          ),
          const SizedBox(height: 5),
          ClipRRect(
            borderRadius: BorderRadius.circular(999),
            child: TweenAnimationBuilder<double>(
              tween: Tween(begin: 0, end: throttle / 100),
              duration: const Duration(milliseconds: 180),
              curve: Curves.easeOut,
              builder: (context, value, _) {
                return LinearProgressIndicator(
                  value: value,
                  minHeight: compact ? 5 : 6,
                  backgroundColor: colors.border,
                  valueColor: AlwaysStoppedAnimation(colors.accent),
                );
              },
            ),
          ),
        ],
      ),
    );
  }
}