feat(derivatives): fix Trade Republic derivative pagination streaming and picker modal

2026-08-15 19:30:15 +02:00
parent 7e18257e3e
commit 882d24a316
7 changed files with 1045 additions and 26 deletions
@@ -0,0 +1,95 @@
+import 'package:equatable/equatable.dart';
+
+class DerivativeItemModel extends Equatable {
+  final String isin;
+  final String name;
+  final String optionType;
+  final String productCategoryName;
+  final String nextGenProductCategoryName;
+  final double strike;
+  final double barrier;
+  final double leverage;
+  final double? size;
+  final double? factor;
+  final double? delta;
+  final String currency;
+  final String? expiry;
+  final String issuer;
+  final String issuerDisplayName;
+  final String? issuerImageId;
+  final String underlyingIsin;
+
+  const DerivativeItemModel({
+    required this.isin,
+    this.name = '',
+    this.optionType = 'Long',
+    this.productCategoryName = '',
+    this.nextGenProductCategoryName = '',
+    this.strike = 0.0,
+    this.barrier = 0.0,
+    this.leverage = 1.0,
+    this.size,
+    this.factor,
+    this.delta,
+    this.currency = 'EUR',
+    this.expiry,
+    this.issuer = '',
+    this.issuerDisplayName = '',
+    this.issuerImageId,
+    this.underlyingIsin = '',
+  });
+
+  bool get isLong => optionType.toLowerCase().contains('long') || optionType.toLowerCase().contains('call');
+
+  double distanceToBarrier(double currentUnderlyingPrice) {
+    if (barrier <= 0 || currentUnderlyingPrice <= 0) return 0.0;
+    return ((currentUnderlyingPrice - barrier).abs() / currentUnderlyingPrice) * 100.0;
+  }
+
+  factory DerivativeItemModel.fromJson(Map<String, dynamic> json) {
+    double parseDbl(dynamic val) {
+      if (val == null) return 0.0;
+      if (val is num) return val.toDouble();
+      return double.tryParse(val.toString()) ?? 0.0;
+    }
+
+    double? parseOptDbl(dynamic val) {
+      if (val == null) return null;
+      if (val is num) return val.toDouble();
+      return double.tryParse(val.toString());
+    }
+
+    return DerivativeItemModel(
+      isin: json['isin']?.toString() ?? '',
+      name: json['name']?.toString() ?? '',
+      optionType: json['optionType']?.toString() ?? 'Long',
+      productCategoryName: json['productCategoryName']?.toString() ?? '',
+      nextGenProductCategoryName: json['nextGenProductCategoryName']?.toString() ?? '',
+      strike: parseDbl(json['strike']),
+      barrier: parseDbl(json['barrier']),
+      leverage: parseDbl(json['leverage']),
+      size: parseOptDbl(json['size']),
+      factor: parseOptDbl(json['factor']),
+      delta: parseOptDbl(json['delta']),
+      currency: json['currency']?.toString() ?? 'EUR',
+      expiry: json['expiry']?.toString(),
+      issuer: json['issuer']?.toString() ?? '',
+      issuerDisplayName: json['issuerDisplayName']?.toString() ?? (json['issuer']?.toString() ?? ''),
+      issuerImageId: json['issuerImageId']?.toString(),
+      underlyingIsin: json['underlyingIsin']?.toString() ?? '',
+    );
+  }
+
+  @override
+  List<Object?> get props => [
+        isin,
+        name,
+        optionType,
+        productCategoryName,
+        strike,
+        barrier,
+        leverage,
+        issuer,
+        underlyingIsin,
+      ];
+}