89 lines
2.5 KiB
Dart
89 lines
2.5 KiB
Dart
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/// K线蜡烛数据模型
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class KlineCandle {
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final String coinCode;
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final String interval;
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final int openTime;
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final double openPrice;
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final double highPrice;
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final double lowPrice;
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final double closePrice;
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final double volume;
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final int closeTime;
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final bool isClosed;
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final int? timestamp;
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const KlineCandle({
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required this.coinCode,
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required this.interval,
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required this.openTime,
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required this.openPrice,
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required this.highPrice,
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required this.lowPrice,
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required this.closePrice,
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required this.volume,
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required this.closeTime,
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this.isClosed = true,
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this.timestamp,
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});
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factory KlineCandle.fromJson(Map<String, dynamic> json) {
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return KlineCandle(
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coinCode: json['coinCode'] as String? ?? '',
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interval: json['interval'] as String? ?? '1h',
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openTime: json['openTime'] as int? ?? 0,
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openPrice: _toDouble(json['openPrice']),
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highPrice: _toDouble(json['highPrice']),
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lowPrice: _toDouble(json['lowPrice']),
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closePrice: _toDouble(json['closePrice']),
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volume: _toDouble(json['volume']),
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closeTime: json['closeTime'] as int? ?? 0,
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isClosed: json['isClosed'] as bool? ?? true,
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timestamp: json['timestamp'] as int?,
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);
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}
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static double _toDouble(dynamic v) {
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if (v == null) return 0.0;
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if (v is double) return v;
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if (v is int) return v.toDouble();
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if (v is String) return double.tryParse(v) ?? 0.0;
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return 0.0;
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}
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/// 转换为 k_chart 库的 KLineEntity 格式
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Map<String, dynamic> toKLineEntityMap() {
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return {
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'open': openPrice,
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'high': highPrice,
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'low': lowPrice,
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'close': closePrice,
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'vol': volume,
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'amount': closePrice * volume,
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'time': openTime,
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'id': openTime,
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};
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}
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/// 转换为 k_chart KLineEntity 对象
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dynamic toKLineEntity() {
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// k_chart KLineEntity.fromCustom 构造器
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return null; // placeholder, actual conversion in kline_page
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}
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/// 从 REST API JSON 转换（历史K线）
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factory KlineCandle.fromHistoryJson(Map<String, dynamic> json) {
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return KlineCandle(
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coinCode: json['coinCode'] as String? ?? '',
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interval: json['interval'] as String? ?? '1h',
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openTime: json['openTime'] as int? ?? 0,
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openPrice: _toDouble(json['openPrice']),
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highPrice: _toDouble(json['highPrice']),
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lowPrice: _toDouble(json['lowPrice']),
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closePrice: _toDouble(json['closePrice']),
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volume: _toDouble(json['volume']),
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closeTime: json['closeTime'] as int? ?? 0,
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isClosed: true,
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);
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}
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}
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