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Entry.cs
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Entry.cs
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using System;
namespace ToDoList
{
public sealed class Entry : IEquatable<Entry>
{
public Entry(int id, string name, EntryState state)
{
Id = id;
Name = name;
State = state;
}
public int Id { get; }
public string Name { get; }
public EntryState State { get; }
public bool Equals(Entry other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return Id == other.Id && Name == other.Name && State == other.State;
}
public Entry MarkDone()
{
return State == EntryState.Done
? this
: new Entry(Id, Name, EntryState.Done);
}
public Entry MarkUndone()
{
return State == EntryState.Undone
? this
: new Entry(Id, Name, EntryState.Undone);
}
public override bool Equals(object obj)
{
return ReferenceEquals(this, obj) || obj is Entry other && Equals(other);
}
public override int GetHashCode()
{
unchecked
{
var hashCode = Id;
hashCode = (hashCode * 397) ^ Name.GetHashCode();
hashCode = (hashCode * 397) ^ (int) State;
return hashCode;
}
}
public static Entry Undone(int id, string name) => new Entry(id, name, EntryState.Undone);
public static Entry Done(int id, string name) => new Entry(id, name, EntryState.Done);
}
}