import 'package:equatable/equatable.dart';

class TickerModel extends Equatable {
  final String ticker;
  final String? exchange;
  final String? tradingCurrency;
  final double? currentPrice;

  const TickerModel({
    required this.ticker,
    this.exchange,
    this.tradingCurrency,
    this.currentPrice,
  });

  factory TickerModel.fromJson(Map<String, dynamic> json) {
    return TickerModel(
      ticker: json['ticker']?.toString() ?? '',
      exchange: json['exchange']?.toString(),
      tradingCurrency: json['tradingCurrency']?.toString(),
      currentPrice: (json['currentPrice'] as num?)?.toDouble(),
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'ticker': ticker,
      if (exchange != null) 'exchange': exchange,
      if (tradingCurrency != null) 'tradingCurrency': tradingCurrency,
      if (currentPrice != null) 'currentPrice': currentPrice,
    };
  }

  @override
  List<Object?> get props => [ticker, exchange, tradingCurrency, currentPrice];
}