parseMarketChartData static method

List<MarketChartData> parseMarketChartData(dynamic d)

Parses list of MarketChartData from dynamic

Implementation

static List<MarketChartData> parseMarketChartData(dynamic d) {
  final map = Convert.toMapN<String, dynamic>(d);
  if (map == null) {
    return [];
  }
  // prices
  final coinData = SplayTreeMap<DateTime, MarketChartData>();
  var workingList = Convert.toListN(map['prices']);
  workingList?.forEach((e) {
    final item = Convert.toListN(e);
    if (item != null) {
      final date = Convert.toDateTimeN(item[0], unit: TimeUnit.milliseconds);
      if (date != null) {
        final price = Convert.toDoubleN(item[1]);
        var data = coinData[date];
        if (data != null) {
          data.price = price;
        } else {
          coinData[date] = MarketChartData(date, price: price);
        }
      }
    }
  });
  // market_caps
  workingList = Convert.toListN(map['market_caps']);
  workingList?.forEach((e) {
    final item = Convert.toListN(e);
    if (item != null) {
      final date = Convert.toDateTimeN(item[0], unit: TimeUnit.milliseconds);
      if (date != null) {
        final marketCap = Convert.toDoubleN(item[1]);
        var data = coinData[date];
        if (data != null) {
          data.marketCap = marketCap;
        } else {
          coinData[date] = MarketChartData(date, marketCap: marketCap);
        }
      }
    }
  });
  // total_volumes
  workingList = Convert.toListN(map['total_volumes']);
  workingList?.forEach((e) {
    final item = Convert.toListN(e);
    if (item != null) {
      final date = Convert.toDateTimeN(item[0], unit: TimeUnit.milliseconds);
      if (date != null) {
        final totalVolume = Convert.toDoubleN(item[1]);
        var data = coinData[date];
        if (data != null) {
          data.totalVolume = totalVolume;
        } else {
          coinData[date] = MarketChartData(date, totalVolume: totalVolume);
        }
      }
    }
  });
  return coinData.values.toList(
    growable: false,
  );
}