65 lines
1.7 KiB
Dart
65 lines
1.7 KiB
Dart
import 'package:flutter/material.dart' show ChangeNotifier;
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import '../../model/repositories/interfaces/task_repository.dart';
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import '../../model/task.dart';
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class TaskController extends ChangeNotifier {
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TaskController(TaskRepository repository) : _repository = repository {
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Future.wait([
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_loadTaskOrder(),
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_loadTasks(),
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]).whenComplete(() => notifyListeners());
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}
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final TaskRepository _repository;
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final List<Task> _tasks = [];
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final List<String> _taskOrder = [];
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List<Task> get orderedTasks {
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final lookup = {for (final task in _tasks) task.id: task};
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return _taskOrder.map((id) => lookup[id]!).toList();
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}
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Future<void> reorderTask(int oldIndex, int newIndex) async {
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final taskId = _taskOrder.removeAt(oldIndex);
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_taskOrder.insert(newIndex, taskId);
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_repository.updateTaskOrder(_taskOrder);
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}
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Future<void> saveTask(Task task) async {
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if (_tasks.contains(task)) {
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_tasks.remove(task);
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_tasks.add(task);
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_repository.updateTask(task);
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} else {
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_tasks.add(task);
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_taskOrder.add(task.id);
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_repository.createTask(task);
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_repository.updateTaskOrder(_taskOrder);
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}
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notifyListeners();
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}
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Future<void> deleteTask(Task task) async {
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_tasks.remove(task);
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_taskOrder.remove(task.id);
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notifyListeners();
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_repository.deleteTask(task);
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_repository.updateTaskOrder(_taskOrder);
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}
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Future<void> _loadTasks() async {
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_tasks.clear();
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return _repository.loadTasks().then((value) => _tasks.addAll(value));
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}
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Future<void> _loadTaskOrder() async {
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_taskOrder.clear();
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return _repository.loadTaskOrder().then(
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(value) => _taskOrder.addAll(value),
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);
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}
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}
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