import 'package:flutter/material.dart';

import 'a11y/a11y_labels.dart';

class AppProgressIndicator extends StatelessWidget {
  final double size;
  final double strokeWidth;
  final Color? color;
  final String semanticsLabel;

  const AppProgressIndicator._({
    required this.size,
    required this.strokeWidth,
    this.color,
    this.semanticsLabel = A11yLabels.loading,
  });

  const AppProgressIndicator.small({Color? color, String? semanticsLabel})
    : this._(
        size: 16,
        strokeWidth: 2,
        color: color,
        semanticsLabel: semanticsLabel ?? A11yLabels.loading,
      );

  const AppProgressIndicator.medium({Color? color, String? semanticsLabel})
    : this._(
        size: 24,
        strokeWidth: 2.5,
        color: color,
        semanticsLabel: semanticsLabel ?? A11yLabels.loading,
      );

  const AppProgressIndicator.large({Color? color, String? semanticsLabel})
    : this._(
        size: 40,
        strokeWidth: 3,
        color: color,
        semanticsLabel: semanticsLabel ?? A11yLabels.loading,
      );

  @override
  Widget build(BuildContext context) {
    final resolved = color ?? Theme.of(context).colorScheme.primary;
    return SizedBox(
      width: size,
      height: size,
      child: CircularProgressIndicator(
        strokeWidth: strokeWidth,
        valueColor: AlwaysStoppedAnimation<Color>(resolved),
        semanticsLabel: semanticsLabel,
      ),
    );
  }
}