using System;
using System.ComponentModel;

namespace Samples.TodoListModule
{
    public class Todo : INotifyPropertyChanged
    {
        private string _description;
        private Guid _id = Guid.Empty;
        private bool _isDone;
        private string _name = "New Todo";

        public Guid Id
        {
            get { return _id; }
            set { _id = value; }
        }

        public string Name
        {
            get { return _name; }
            set
            {
                _name = value;
                OnPropertyChanged("Name");
            }
        }

        public string Description
        {
            get { return _description; }
            set
            {
                _description = value;
                OnPropertyChanged("Description");
            }
        }

        public bool IsDone
        {
            get { return _isDone; }
            set
            {
                _isDone = value;
                OnPropertyChanged("IsDone");
            }
        }

        #region INotifyPropertyChanged Members

        public event PropertyChangedEventHandler PropertyChanged;

        #endregion

        public override bool Equals(object obj)
        {
            Todo other = obj as Todo;

            if(other != null)
                return other.Id == Id;
            else return false;
        }

        protected virtual void OnPropertyChanged(string propertyName)
        {
            if(PropertyChanged != null)
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}