import 'package:hooks_riverpod/hooks_riverpod.dart';

import '../../../common/domain/metal_type.dart';
import 'asset_models.dart';

final mockAssetRepositoryProvider = Provider<MockAssetRepository>(
  (ref) => MockAssetRepository(),
);

class MockAssetRepository {
  List<GoldAssetHolding> loadHoldings() {
    final now = DateTime(2026, 6, 18, 16, 11);
    return [
      GoldAssetHolding(
        id: 'holding_gold_bar_001',
        name: '投资金条',
        metal: MetalType.gold,
        category: AssetCategory.bar,
        purity: 0.9999,
        purityLabel: '足金9999',
        weightGram: 50,
        costAmount: 43200,
        purchaseDate: DateTime(2025, 10, 12),
        channel: '银行',
        createdAt: now.subtract(const Duration(days: 249)),
        updatedAt: now,
      ),
      GoldAssetHolding(
        id: 'holding_gold_ring_001',
        name: '素圈戒指',
        metal: MetalType.gold,
        category: AssetCategory.ring,
        purity: 0.999,
        purityLabel: '足金999',
        weightGram: 8.6,
        costAmount: 7820,
        purchaseDate: DateTime(2024, 12, 4),
        channel: '金店',
        createdAt: now.subtract(const Duration(days: 196)),
        updatedAt: now,
      ),
      GoldAssetHolding(
        id: 'holding_platinum_001',
        name: 'PT950 项链',
        metal: MetalType.platinum,
        category: AssetCategory.platinumPiece,
        purity: 0.95,
        purityLabel: 'PT950',
        weightGram: 12.3,
        costAmount: 5200,
        purchaseDate: DateTime(2023, 8, 21),
        channel: '金店',
        createdAt: now.subtract(const Duration(days: 667)),
        updatedAt: now,
      ),
      GoldAssetHolding(
        id: 'holding_silver_001',
        name: '银手镯',
        metal: MetalType.silver,
        category: AssetCategory.bracelet,
        purity: 0.999,
        purityLabel: '999银',
        weightGram: 31.8,
        costAmount: 980,
        purchaseDate: DateTime(2024, 4, 7),
        channel: '金店',
        note: '材料价值偏低',
        createdAt: now.subtract(const Duration(days: 802)),
        updatedAt: now,
      ),
    ];
  }
}