import 'package:flutter/material.dart';

import 'package:pweb/models/wallet.dart';
import 'package:pweb/services/wallets.dart';


class WalletsProvider with ChangeNotifier {
  final WalletsService _service;

  WalletsProvider(this._service);

  List<Wallet>? _wallets;
  bool _isLoading = false;
  String? _error;
  Wallet? _selectedWallet;
  final bool _isHidden = true;

  List<Wallet>? get wallets => _wallets;
  bool get isLoading => _isLoading;
  String? get error => _error;
  Wallet? get selectedWallet => _selectedWallet;
  bool get isHidden => _isHidden;




  void selectWallet(Wallet wallet) {
    _selectedWallet = wallet;
    notifyListeners();
  }

  Future<void> loadData() async {
    _isLoading = true;
    _error = null;
    notifyListeners();

    try {
      _wallets = await _service.getWallets();
    } catch (e) {
      _error = e.toString();
    } finally {
      _isLoading = false;
      notifyListeners();
    }
  }

  Future<Wallet?> getWalletById(String walletId) async {
    _isLoading = true;
    _error = null;
    notifyListeners();

    try {
      final wallet = await _service.getWallet(walletId);
      return wallet;
    } catch (e) {
      _error = e.toString();
      return null;
    } finally {
      _isLoading = false;
      notifyListeners();
    }
  }

  void updateName(String walletRef, String newName) {
    final index = _wallets?.indexWhere((w) => w.id == walletRef);
    if (index != null && index >= 0) {
      _wallets![index] = _wallets![index].copyWith(name: newName);
      notifyListeners();
    }
  }
  

  void updateBalance(String walletRef, double newBalance) {
    final index = _wallets?.indexWhere((w) => w.id == walletRef);
    if (index != null && index >= 0) {
      _wallets![index] = _wallets![index].copyWith(balance: newBalance);
      notifyListeners();
    }
  }

  Future<void> updateWallet(Wallet wallet) async {
    try {
      await _service.updateWallet();
      final index = _wallets?.indexWhere((w) => w.id == wallet.id);
      if (index != null && index >= 0) {
        _wallets![index] = wallet;
        notifyListeners();
      }
    } catch (e) {
      _error = e.toString();
      notifyListeners();
    }
  }


  Future<void> addWallet(Wallet wallet) async {
    try {
      final newWallet = await _service.createWallet(); // Pass the wallet parameter
      _wallets = [...?_wallets, ]; // Add the new wallet
      notifyListeners();
    } catch (e) {
      _error = e.toString();
      notifyListeners();
    }
  }

  Future<void> deleteWallet(String walletId) async {
    try {
      await _service.deleteWallet(); // Pass the walletId parameter
      _wallets?.removeWhere((w) => w.id == walletId);
      notifyListeners();
    } catch (e) {
      _error = e.toString();
      notifyListeners();
    }
  }

  void toggleVisibility(String walletId) {
    final index = _wallets?.indexWhere((w) => w.id == walletId);
    if (index != null && index >= 0) {
      final wallet = _wallets![index];
      _wallets![index] = wallet.copyWith(isHidden: !wallet.isHidden);
      
      if (_selectedWallet?.id == walletId) {
        _selectedWallet = _wallets![index];
      }
      
      notifyListeners();
    }
  }
}