import 'package:flutter/material.dart';

import '../theme/app_dimens.dart';

extension BuildContextX on BuildContext {
  ThemeData get theme => Theme.of(this);
  TextTheme get text => Theme.of(this).textTheme;
  ColorScheme get colors => Theme.of(this).colorScheme;

  Size get screen => MediaQuery.sizeOf(this);
  double get screenWidth => MediaQuery.sizeOf(this).width;
  double get screenHeight => MediaQuery.sizeOf(this).height;

  bool get isCompact => AppBreakpoints.isCompact(screenWidth);
  bool get isMedium => AppBreakpoints.isMedium(screenWidth);
  bool get isExpanded => AppBreakpoints.isExpanded(screenWidth);

  /// Picks a value appropriate to the current breakpoint.
  T responsive<T>({required T compact, T? medium, required T expanded}) {
    if (isCompact) return compact;
    if (isExpanded) return expanded;
    return medium ?? expanded;
  }

  void showSnack(String message, {Color? background}) {
    ScaffoldMessenger.of(this)
      ..hideCurrentSnackBar()
      ..showSnackBar(SnackBar(
        content: Text(message),
        backgroundColor: background,
        duration: const Duration(seconds: 2),
      ),);
  }
}

extension DoubleX on double {
  /// Rounds to two decimals to avoid floating point drift in money maths.
  double get asMoney => (this * 100).roundToDouble() / 100;

  /// Indian retail round-off to the nearest rupee.
  double get roundedToRupee => roundToDouble();
}

extension StringX on String {
  String get capitalized =>
      isEmpty ? this : '${this[0].toUpperCase()}${substring(1)}';

  bool containsIgnoreCase(String other) =>
      toLowerCase().contains(other.toLowerCase());
}

extension IterableX<T> on Iterable<T> {
  T? firstWhereOrNull(bool Function(T) test) {
    for (final element in this) {
      if (test(element)) return element;
    }
    return null;
  }
}