import 'package:flutter/material.dart';
import 'package:flisp_app/models/todo.dart';

class TodoDialogStore extends ChangeNotifier {
  String _title = '';
  String _description = '';
  DateTime? _dueDate;
  TodoPriority _priority = TodoPriority.medium;
  String? _category;

  // Getters
  String get title => _title;
  String get description => _description;
  DateTime? get dueDate => _dueDate;
  TodoPriority get priority => _priority;
  String? get category => _category;

  // Setters
  set title(String value) {
    _title = value;
    notifyListeners();
  }

  set description(String value) {
    _description = value;
    notifyListeners();
  }

  set dueDate(DateTime? value) {
    _dueDate = value;
    notifyListeners();
  }

  set priority(TodoPriority value) {
    _priority = value;
    notifyListeners();
  }

  set category(String? value) {
    _category = value;
    notifyListeners();
  }

  // 初始化编辑数据
  void initEditData(TodoItem todo) {
    _title = todo.title;
    _description = todo.description ?? '';
    _dueDate = todo.dueDate;
    _priority = todo.priority;
    _category = todo.category;
    notifyListeners();
  }

  // 重置表单数据
  void reset() {
    _title = '';
    _description = '';
    _dueDate = null;
    _priority = TodoPriority.medium;
    _category = null;
    notifyListeners();
  }

  // 验证表单
  bool validate() {
    return _title.trim().isNotEmpty;
  }

  // 创建待办事项对象
  TodoItem createTodoItem({String? id, bool isCompleted = false, DateTime? createdAt}) {
    return TodoItem(
      id: id ?? DateTime.now().millisecondsSinceEpoch.toString(),
      title: _title.trim(),
      description: _description.trim().isEmpty ? null : _description.trim(),
      dueDate: _dueDate,
      priority: _priority,
      category: _category,
      isCompleted: isCompleted,
      createdAt: createdAt ?? DateTime.now(),
    );
  }
}