128 lines
3.8 KiB
Dart
128 lines
3.8 KiB
Dart
class QuestionAuditBarSlot {
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const QuestionAuditBarSlot({
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required this.asOf,
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required this.avgPrice,
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required this.volume,
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required this.volumeUsd,
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this.open,
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this.high,
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this.low,
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this.close,
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});
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final DateTime asOf;
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final num? open;
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final num? high;
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final num? low;
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final num? close;
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final num avgPrice;
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final num volume;
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final num volumeUsd;
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factory QuestionAuditBarSlot.fromJson(Map<String, dynamic> json) {
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final num avgPrice = json['avgPrice'] as num;
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final num volume = json['volume'] as num;
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return QuestionAuditBarSlot(
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asOf: DateTime.parse(json['asOf']! as String).toUtc(),
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open: json['open'] as num?,
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high: json['high'] as num?,
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low: json['low'] as num?,
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close: json['close'] as num?,
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avgPrice: avgPrice,
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volume: volume,
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volumeUsd: json['volumeUsd'] as num? ?? volume * avgPrice,
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);
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}
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}
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class QuestionAuditAsset {
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const QuestionAuditAsset({
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required this.symbol,
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required this.priceDelta,
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required this.volumeDelta,
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required this.olderSlot,
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required this.newerSlot,
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});
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final String symbol;
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final num priceDelta;
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final num volumeDelta;
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final QuestionAuditBarSlot olderSlot;
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final QuestionAuditBarSlot newerSlot;
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factory QuestionAuditAsset.fromJson(Map<String, dynamic> json) {
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return QuestionAuditAsset(
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symbol: json['symbol']! as String,
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priceDelta: json['priceDelta'] as num,
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volumeDelta: json['volumeDelta'] as num,
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olderSlot: QuestionAuditBarSlot.fromJson(
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json['olderSlot']! as Map<String, dynamic>,
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),
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newerSlot: QuestionAuditBarSlot.fromJson(
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json['newerSlot']! as Map<String, dynamic>,
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),
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);
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}
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}
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/// US RTH session-half slot length (9:30–12:45 and 12:45–16:00 ET).
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const Duration _sessionHalfSlotDuration = Duration(hours: 3, minutes: 15);
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class QuestionAuditReport {
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const QuestionAuditReport({
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required this.compareUntil,
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required this.newerSlotStart,
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required this.olderSlotStart,
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required this.windowDays,
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required this.assets,
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required this.canStepOlder,
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required this.canStepNewer,
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this.stepOlderCompareUntil,
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this.stepNewerCompareUntil,
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});
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final DateTime compareUntil;
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final DateTime newerSlotStart;
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final DateTime olderSlotStart;
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final int windowDays;
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final List<QuestionAuditAsset> assets;
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final bool canStepOlder;
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final bool canStepNewer;
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final DateTime? stepOlderCompareUntil;
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final DateTime? stepNewerCompareUntil;
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factory QuestionAuditReport.fromJson(Map<String, dynamic> json) {
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final List<dynamic> raw = json['assets'] as List<dynamic>? ?? <dynamic>[];
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final DateTime compareUntil = DateTime.parse(
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(json['compareUntil'] ?? json['asOf'])! as String,
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).toUtc();
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return QuestionAuditReport(
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compareUntil: compareUntil,
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newerSlotStart: json['newerSlotStart'] == null
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? compareUntil.subtract(_sessionHalfSlotDuration)
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: DateTime.parse(json['newerSlotStart']! as String).toUtc(),
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olderSlotStart: json['olderSlotStart'] == null
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? compareUntil.subtract(_sessionHalfSlotDuration * 2)
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: DateTime.parse(json['olderSlotStart']! as String).toUtc(),
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windowDays: (json['windowDays'] as num).toInt(),
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canStepOlder: json['canStepOlder'] as bool? ?? false,
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canStepNewer: json['canStepNewer'] as bool? ?? false,
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stepOlderCompareUntil: _parseOptionalUtc(json['stepOlderCompareUntil']),
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stepNewerCompareUntil: _parseOptionalUtc(json['stepNewerCompareUntil']),
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assets: raw
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.map(
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(dynamic item) =>
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QuestionAuditAsset.fromJson(item as Map<String, dynamic>),
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)
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.toList(growable: false),
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);
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}
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}
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DateTime? _parseOptionalUtc(dynamic raw) {
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if (raw == null) {
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return null;
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}
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return DateTime.parse(raw as String).toUtc();
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}
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