import 'package:pshared/service/wallet.dart' as shared_wallet_service;

import 'package:pweb/models/currency.dart';
import 'package:pweb/models/wallet.dart';
import 'package:pweb/data/mappers/wallet_ui.dart';


abstract class WalletsService {
  Future<List<Wallet>> getWallets(String organizationRef);
  Future<double> getBalance(String organizationRef, String walletRef);
}

class MockWalletsService implements WalletsService {
  final List<Wallet> _wallets = [
    Wallet(id: '1124', walletUserID: 'WA-12345667', name: 'Main Wallet', balance: 10000000.0, currency: Currency.rub, calculatedAt: DateTime.now()),
    Wallet(id: '2124', walletUserID: 'WA-76654321', name: 'Savings', balance: 2500.5, currency: Currency.usd, calculatedAt: DateTime.now()),
  ];

  @override
  Future<List<Wallet>> getWallets(String _) async {
    return _wallets;
  }

  @override
  Future<double> getBalance(String _, String walletRef) async {
    final wallet = _wallets.firstWhere(
      (w) => w.id == walletRef,
      orElse: () => throw Exception('Wallet not found'),
    );
    return wallet.balance;
  }
}

class ApiWalletsService implements WalletsService {
  @override
  Future<List<Wallet>> getWallets(String organizationRef) async {
    final models = await shared_wallet_service.WalletService.list(organizationRef);
    return models.map((m) => m.toUi()).toList();
  }

  @override
  Future<double> getBalance(String organizationRef, String walletRef) async {
    final balance = await shared_wallet_service.WalletService.getBalance(
      organizationRef: organizationRef,
      walletRef: walletRef,
    );
    final amount = balance.available?.amount;
    return amount == null ? 0 : double.tryParse(amount) ?? 0;
  }
}
