import 'package:flutter/material.dart';
import '../../data/models/models.dart';
import '../theme/app_theme.dart';

class StepIndicator extends StatelessWidget {
  final BatchStep currentStep;

  const StepIndicator({super.key, required this.currentStep});

  @override
  Widget build(BuildContext context) {
    final steps = BatchStep.values;
    return Container(
      color: Colors.white,
      padding: const EdgeInsets.symmetric(vertical: 8),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: steps.map((step) {
          final isActive = step == currentStep;
          final isDone = step.index < currentStep.index;
          return Expanded(
            child: Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                _StepDot(isActive: isActive, isDone: isDone, step: step),
                const SizedBox(height: 4),
                Text(
                  step.label,
                  style: TextStyle(
                    fontSize: 10,
                    fontWeight: isActive ? FontWeight.w700 : FontWeight.w400,
                    color: isActive
                        ? AppColors.primary
                        : isDone
                            ? AppColors.success
                            : AppColors.textSecondary,
                  ),
                  textAlign: TextAlign.center,
                ),
              ],
            ),
          );
        }).toList(),
      ),
    );
  }
}

class _StepDot extends StatelessWidget {
  final bool isActive;
  final bool isDone;
  final BatchStep step;

  const _StepDot({required this.isActive, required this.isDone, required this.step});

  @override
  Widget build(BuildContext context) {
    return Container(
      width: 28,
      height: 28,
      decoration: BoxDecoration(
        shape: BoxShape.circle,
        color: isActive
            ? AppColors.primary
            : isDone
                ? AppColors.success
                : AppColors.divider,
      ),
      child: Center(
        child: isDone
            ? const Icon(Icons.check, color: Colors.white, size: 16)
            : Text(
                '${step.index + 1}',
                style: TextStyle(
                  color: isActive ? Colors.white : AppColors.textSecondary,
                  fontSize: 13,
                  fontWeight: FontWeight.w600,
                ),
              ),
      ),
    );
  }
}