import 'package:flutter/material.dart';
import 'package:trainhub_flutter/core/theme/app_colors.dart';
import 'package:trainhub_flutter/core/constants/ui_constants.dart';
import 'package:trainhub_flutter/domain/entities/workout_activity.dart';

class ActivityCard extends StatelessWidget {
  final WorkoutActivityEntity activity;

  const ActivityCard({super.key, required this.activity});

  @override
  Widget build(BuildContext context) {
    final isRest = activity.isRest;
    final accentColor = isRest ? AppColors.info : AppColors.accent;

    return Container(
      padding: const EdgeInsets.symmetric(
        horizontal: UIConstants.spacing24,
        vertical: UIConstants.spacing16,
      ),
      decoration: BoxDecoration(
        color: AppColors.surfaceContainer.withValues(alpha: 0.6),
        borderRadius: UIConstants.cardBorderRadius,
        border: Border.all(
          color: accentColor.withValues(alpha: 0.2),
        ),
      ),
      child: Column(
        children: [
          // Activity type badge
          Container(
            padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
            decoration: BoxDecoration(
              color: accentColor.withValues(alpha: 0.12),
              borderRadius: BorderRadius.circular(12),
            ),
            child: Text(
              isRest ? 'REST' : 'WORK',
              style: TextStyle(
                color: accentColor,
                fontSize: 10,
                fontWeight: FontWeight.w700,
                letterSpacing: 1.5,
              ),
            ),
          ),
          const SizedBox(height: UIConstants.spacing12),
          // Activity name
          Text(
            activity.name,
            style: const TextStyle(
              color: AppColors.textPrimary,
              fontSize: 22,
              fontWeight: FontWeight.w600,
            ),
            textAlign: TextAlign.center,
          ),
          if (!isRest) ...[
            const SizedBox(height: UIConstants.spacing8),
            Text(
              '${activity.sectionName ?? ''} \u00B7 Set ${activity.setIndex}/${activity.totalSets}',
              style: const TextStyle(
                color: AppColors.textMuted,
                fontSize: 13,
              ),
            ),
            if (activity.originalExercise != null) ...[
              const SizedBox(height: UIConstants.spacing16),
              Row(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  _InfoChip(
                    label: 'Sets',
                    value: '${activity.originalExercise!.sets}',
                  ),
                  const SizedBox(width: UIConstants.spacing16),
                  _InfoChip(
                    label: activity.originalExercise!.isTime ? 'Secs' : 'Reps',
                    value: '${activity.originalExercise!.value}',
                  ),
                ],
              ),
            ],
          ] else
            Padding(
              padding: const EdgeInsets.only(top: UIConstants.spacing8),
              child: Text(
                'Take a break',
                style: TextStyle(
                  color: AppColors.textMuted,
                  fontSize: 14,
                ),
              ),
            ),
        ],
      ),
    );
  }
}

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

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

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
      decoration: BoxDecoration(
        color: AppColors.zinc800.withValues(alpha: 0.5),
        borderRadius: BorderRadius.circular(8),
      ),
      child: Column(
        children: [
          Text(
            value,
            style: const TextStyle(
              color: AppColors.textPrimary,
              fontSize: 20,
              fontWeight: FontWeight.w600,
            ),
          ),
          Text(
            label,
            style: const TextStyle(
              color: AppColors.textMuted,
              fontSize: 11,
            ),
          ),
        ],
      ),
    );
  }
}