PIbd-32_Shabunov_O.A._MobileProgramming/lib/data/mappers/crypto_mapper.dart

import 'package:flutter_android_app/components/locale/l10n/app_localizations.dart';
import 'package:flutter_android_app/data/dtos/coins_dto.dart';
import 'package:flutter_android_app/domain/models/card.dart';
import 'package:flutter_android_app/domain/models/home.dart';

extension CoinDataDtoToModel on CoinDataDto {
  CardData toDomain(AppLocale? locale) => CardData(
    id: id ?? 'UNKNOWN',
    title: name ?? 'UNKNOWN',
    imageUrl: image,
    currentPrice: _getLocalizedPrice(currentPrice, locale?.localeName),
    priceChange: _getLocalizedPriceChange(priceChange24h, locale),
  );

  String _getLocalizedPrice(double? price, String? localeName) {
    if (localeName == null) {
      return '$price \$';
    }

    return switch (localeName) {
      'ru' => '$price ₽',
      _ => '$price \$',
    };
  }

  String _getLocalizedPriceChange(double? priceChange, AppLocale? locale) {
    if (priceChange == null) {
      return '+${_getLocalizedPrice(0, locale?.localeName)}';
    }

    String retVal = '';
    if (priceChange >= 0.0) {
      retVal += '+';
    }

    retVal += _getLocalizedPrice(priceChange, locale?.localeName);

    return '$retVal ${locale?.coinDataPriceChange}';
  }
}

extension CoinsDtoToModel on CoinsDto {
  HomeData toDomain(AppLocale? locale, int currentPage) => HomeData(
    data: coins?.map((e) => e.toDomain(locale)).toList(),
    nextPage: currentPage + 1,
  );
}