todo.dart

import 'dart:convert';

class Todo {
  final int?
      id; // we are keeping the id to be nullable because we will use Todo type object as argument in create function.
  // So there, we will not pass any id but the supabase will automatically generate it for us.
  final String title;
  Todo({
    this.id,
    required this.title,
  });

  Todo copyWith({
    int? id,
    String? title,
  }) {
    return Todo(
      id: id ?? this.id,
      title: title ?? this.title,
    );
  }

  Map<String, dynamic> toMap() {
    final result = <String, dynamic>{};

    if (id != null) {
      result.addAll({'id': id});
    }
    result.addAll({'title': title});

    return result;
  }

  factory Todo.fromMap(Map<String, dynamic> map) {
    return Todo(
      id: map['id']?.toInt(),
      title: map['title'] ?? '',
    );
  }

  String toJson() => json.encode(toMap());

  factory Todo.fromJson(String source) => Todo.fromMap(json.decode(source));

  @override
  String toString() => 'Todo(id: $id, title: $title)';

  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;

    return other is Todo && other.id == id && other.title == title;
  }

  @override
  int get hashCode => id.hashCode ^ title.hashCode;
}