import 'package:equatable/equatable.dart';

/// Typed mirror of the fields the admin UI needs from
/// `FinlyticCore.Dtos.TechnicalAnalysis.StrategyResultDto`, as returned by
/// `GET /api/v1/admin/evaluations/watchlist/{isin}/history` — the last N
/// technical-analysis setups computed for one ISIN, most recent first, so the
/// score trend (improving/worsening, and whether it ever cleared the engine's
/// top-pick bar) is visible even for setups too weak to ever reach the engine.
class RecentSetupModel extends Equatable {
  final String strategyName;
  final double qualityScore;
  final bool isTopPick;
  final String rating;
  final DateTime createdAt;

  const RecentSetupModel({
    required this.strategyName,
    required this.qualityScore,
    required this.isTopPick,
    required this.rating,
    required this.createdAt,
  });

  factory RecentSetupModel.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;
    }

    return RecentSetupModel(
      strategyName: json['strategyName']?.toString() ?? '',
      qualityScore: parseDbl(json['qualityScore']),
      isTopPick: json['isTopPick'] == true,
      rating: json['rating']?.toString() ?? '',
      createdAt: DateTime.tryParse(json['createdAt']?.toString() ?? '')?.toUtc() ?? DateTime.fromMillisecondsSinceEpoch(0, isUtc: true),
    );
  }

  @override
  List<Object?> get props => [strategyName, qualityScore, isTopPick, rating, createdAt];
}