import 'package:equatable/equatable.dart';

import '../../../core/ui/view_status.dart';
import '../data/models/wallet.dart';
import '../data/models/wallet_txn.dart';
import '../data/wallet_repository.dart';

enum WalletAction { none, toppingUp, topupFailed, topupDone, invoiceReady }

class WalletState extends Equatable {
  const WalletState({
    this.status = ViewStatus.idle,
    this.wallet,
    this.transactions = const [],
    this.action = WalletAction.none,
    this.invoice,
    this.error,
  });

  final ViewStatus status;
  final Wallet? wallet;
  final List<WalletTxn> transactions;

  /// فعلٌ جارٍ داخل الشاشة — منفصل عن [status] كي لا يُخفي الشحنُ الرصيدَ
  /// المعروض خلفه.
  final WalletAction action;

  /// فاتورة تحويل بانتظار الدفع — تُعرض للمستخدم بمرجعها وحساب الاستلام.
  final TopupResult? invoice;

  final String? error;

  String get currency => wallet?.currency ?? '';

  WalletState copyWith({
    ViewStatus? status,
    Wallet? wallet,
    List<WalletTxn>? transactions,
    WalletAction? action,
    TopupResult? invoice,
    String? error,
  }) {
    return WalletState(
      status: status ?? this.status,
      wallet: wallet ?? this.wallet,
      transactions: transactions ?? this.transactions,
      action: action ?? this.action,
      invoice: invoice ?? this.invoice,
      error: error ?? this.error,
    );
  }

  @override
  List<Object?> get props =>
      [status, wallet, transactions, action, invoice?.reference, error];
}