flutter-demo/lib/provider/item_category_provider.dart

import 'package:flutter/material.dart';

import 'package:item_tracker/models/item_category_model.dart';
import 'package:item_tracker/repository/item_category_repository.dart';

class ItemCategoryProvider extends ChangeNotifier {
  List<ItemCategory> _categories = [];

  List<ItemCategory> get categories => _categories;

  final ItemCategoryRepository repository;

  ItemCategoryProvider({required this.repository});

  Future<void> loadCategories() async {
    _categories = await repository.getAll();
    notifyListeners();
  }

  Future<void> addCategory(ItemCategory) async {
    await repository.insert(ItemCategory);
    await loadCategories();
  }

  Future<void> updateCategory(ItemCategory) async {
    await repository.update(ItemCategory);
    await loadCategories();
  }

  Future<void> deleteCategory(ItemCategory) async {
    await repository.delete(ItemCategory.id!);
    await loadCategories();
  }

  Future<ItemCategory?> getCategoryById(int id) async {
    final data = await repository.getById(id);
    return data;
  }
}