feat：参照研听的基础工程

2026-06-18 15:02:28 +08:00
commit 364fc837b3
367 changed files with 16495 additions and 0 deletions
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+import '../../../common/domain/metal_type.dart';
+
+enum AssetCategory {
+  bar('金条'),
+  necklace('项链'),
+  ring('戒指'),
+  bracelet('手镯'),
+  bean('金豆'),
+  earring('耳环'),
+  silverware('银饰'),
+  platinumPiece('铂金件');
+
+  const AssetCategory(this.label);
+
+  final String label;
+}
+
+enum HoldingStatus { active, sold, gifted }
+
+class GoldAssetHolding {
+  const GoldAssetHolding({
+    required this.id,
+    required this.name,
+    required this.metal,
+    required this.category,
+    required this.purity,
+    required this.purityLabel,
+    required this.weightGram,
+    required this.createdAt,
+    required this.updatedAt,
+    this.costAmount,
+    this.purchaseDate,
+    this.channel,
+    this.note,
+    this.status = HoldingStatus.active,
+  });
+
+  final String id;
+  final String name;
+  final MetalType metal;
+  final AssetCategory category;
+  final double purity;
+  final String purityLabel;
+  final double weightGram;
+  final double? costAmount;
+  final DateTime? purchaseDate;
+  final String? channel;
+  final String? note;
+  final DateTime createdAt;
+  final DateTime updatedAt;
+  final HoldingStatus status;
+
+  double materialValue(double spotPrice) => weightGram * purity * spotPrice;
+}
+
+class HoldingValuation {
+  const HoldingValuation({
+    required this.holding,
+    required this.materialValue,
+    required this.todayChange,
+  });
+
+  final GoldAssetHolding holding;
+  final double materialValue;
+  final double todayChange;
+}
+
+class MetalBreakdown {
+  const MetalBreakdown({
+    required this.metal,
+    required this.value,
+    required this.weightGram,
+    required this.count,
+  });
+
+  final MetalType metal;
+  final double value;
+  final double weightGram;
+  final int count;
+}
+
+class PortfolioSummary {
+  const PortfolioSummary({
+    required this.totalValue,
+    required this.todayChangeAmount,
+    required this.todayChangePercent,
+    required this.totalCost,
+    required this.totalWeightGram,
+    required this.recycleReferenceValue,
+    required this.breakdowns,
+    required this.holdings,
+  });
+
+  final double totalValue;
+  final double todayChangeAmount;
+  final double todayChangePercent;
+  final double totalCost;
+  final double totalWeightGram;
+  final double recycleReferenceValue;
+  final List<MetalBreakdown> breakdowns;
+  final List<HoldingValuation> holdings;
+}