import 'package:equatable/equatable.dart';
import '../models/bot_models.dart';

abstract class BotState extends Equatable {
  const BotState();

  @override
  List<Object?> get props => [];
}

class BotInitial extends BotState {
  const BotInitial();
}

class BotLoading extends BotState {
  const BotLoading();
}

class BotLoaded extends BotState {
  final BotStatusModel status;
  final AccountSummaryModel summary;
  final List<BotTradeOrderModel> positions;
  final bool isPanicClosing;
  final String? actionMessage;

  /// True when [actionMessage] describes a failure or a partial success (e.g. a panic-close that could not
  /// confirm every position was closed) rather than a full, unqualified success - the UI must not present
  /// this the same way as a genuine success (Rules.md §4).
  final bool actionIsWarning;

  const BotLoaded({
    required this.status,
    required this.summary,
    required this.positions,
    this.isPanicClosing = false,
    this.actionMessage,
    this.actionIsWarning = false,
  });

  int get activePositionsCount => positions.where((p) => p.isActive).length;
  double get totalUnrealizedPnL => positions.where((p) => p.isActive).fold(0.0, (sum, p) => sum + p.unrealizedPnlEur);
  double get totalRealizedPnL => positions.fold(0.0, (sum, p) => sum + p.realizedPnlEur);

  BotLoaded copyWith({
    BotStatusModel? status,
    AccountSummaryModel? summary,
    List<BotTradeOrderModel>? positions,
    bool? isPanicClosing,
    String? actionMessage,
    bool actionIsWarning = false,
  }) {
    return BotLoaded(
      status: status ?? this.status,
      summary: summary ?? this.summary,
      positions: positions ?? this.positions,
      isPanicClosing: isPanicClosing ?? this.isPanicClosing,
      actionMessage: actionMessage,
      actionIsWarning: actionIsWarning,
    );
  }

  @override
  List<Object?> get props => [status, summary, positions, isPanicClosing, actionMessage, actionIsWarning];
}

class BotError extends BotState {
  final String message;

  const BotError(this.message);

  @override
  List<Object?> get props => [message];
}