Jarstat

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using Jarstat.Domain.Entities;
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namespace Jarstat.Domain.Primitives;
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public abstract class Entity : IEquatable<Entity>
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{
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    // TODO: figure out how to use protected constructor of the base class instead of default constructors with EF Core
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    //protected Entity(Guid id) => Id = id;
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    //protected Entity() { }
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    public Guid Id { get; protected init; }
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    public DateTime DateTimeCreated { get; protected init; }
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    public DateTime DateTimeUpdated { get; protected set; }
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    public User Creator { get; protected init; } = null!;
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    public User LastUpdater { get; protected set; } = null!;
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    public static bool operator ==(Entity? first, Entity? second)
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    {
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        return first is not null && second is not null && first.Equals(second);
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    }
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    public static bool operator !=(Entity? first, Entity? second)
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    {
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        return !(first == second);
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    }
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    public bool Equals(Entity? other)
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    {
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        if (other is null)
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            return false;
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        if (other.GetType() != GetType())
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            return false;
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        return other.Id == Id;
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    }
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    public override bool Equals(object? obj)
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    {
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        if (obj is null)
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            return false;
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        if (obj.GetType() != GetType())
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            return false;
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        if (obj is not Entity entity)
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            return false;
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        return entity.Id == Id;
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    }
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    public override int GetHashCode()
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    {
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        return Id.GetHashCode() * 79;
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    }
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}
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