48 lines
1.2 KiB
Dart
48 lines
1.2 KiB
Dart
import 'package:flutter/foundation.dart';
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import '../models/product.dart';
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import '../services/product_service.dart';
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class InventoryViewModel extends ChangeNotifier {
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final ProductService productService;
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InventoryViewModel({required this.productService});
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List<Product> _products = [];
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List<Product> get products => _products;
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Future<void> load() async {
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_products = await productService.getProducts();
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notifyListeners();
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}
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Future<void> decreaseStock(String productId, int amount) async {
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await productService.decreaseStock(productId, amount);
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final index = _products.indexWhere((product) => product.id == productId);
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if (index != -1) {
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_products[index] = _products[index].copyWith(
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stockQuantity: _products[index].stockQuantity - amount,
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);
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}
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notifyListeners();
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}
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Future<void> increaseStock(String productId, int amount) async {
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await productService.increaseStock(productId, amount);
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final index = _products.indexWhere((product) => product.id == productId);
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if (index != -1) {
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_products[index] = _products[index].copyWith(
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stockQuantity: _products[index].stockQuantity + amount,
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);
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}
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notifyListeners();
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}
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}
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