Umbraco-CMS/src/Umbraco.Core/Events/NewEventArgs.cs

using System;
using System.Collections.Generic;

namespace Umbraco.Cms.Core.Events
{
    public class NewEventArgs<TEntity> : CancellableObjectEventArgs<TEntity>, IEquatable<NewEventArgs<TEntity>>
    {


        public NewEventArgs(TEntity eventObject, bool canCancel, string @alias, int parentId, EventMessages eventMessages)
            : base(eventObject, canCancel, eventMessages)
        {
            Alias = alias;
            ParentId = parentId;
        }

        public NewEventArgs(TEntity eventObject, bool canCancel, string @alias, TEntity? parent, EventMessages eventMessages)
            : base(eventObject, canCancel, eventMessages)
        {
            Alias = alias;
            Parent = parent;
        }

        public NewEventArgs(TEntity eventObject, string @alias, int parentId, EventMessages eventMessages)
            : base(eventObject, eventMessages)
        {
            Alias = alias;
            ParentId = parentId;
        }

        public NewEventArgs(TEntity eventObject, string @alias, TEntity? parent, EventMessages eventMessages)
            : base(eventObject, eventMessages)
        {
            Alias = alias;
            Parent = parent;
        }



        public NewEventArgs(TEntity eventObject, bool canCancel, string @alias, int parentId) : base(eventObject, canCancel)
        {
            Alias = alias;
            ParentId = parentId;
        }

        public NewEventArgs(TEntity eventObject, bool canCancel, string @alias, TEntity? parent)
            : base(eventObject, canCancel)
        {
            Alias = alias;
            Parent = parent;
        }

        public NewEventArgs(TEntity eventObject, string @alias, int parentId) : base(eventObject)
        {
            Alias = alias;
            ParentId = parentId;
        }

        public NewEventArgs(TEntity eventObject, string @alias, TEntity? parent)
            : base(eventObject)
        {
            Alias = alias;
            Parent = parent;
        }

        /// <summary>
        /// The entity being created
        /// </summary>
        public TEntity? Entity
        {
            get { return EventObject; }
        }

        /// <summary>
        /// Gets or Sets the Alias.
        /// </summary>
        public string Alias { get; private set; }

        /// <summary>
        /// Gets or Sets the Id of the parent.
        /// </summary>
        public int ParentId { get; private set; }

        /// <summary>
        /// Gets or Sets the parent IContent object.
        /// </summary>
        public TEntity? Parent { get; private set; }

        public bool Equals(NewEventArgs<TEntity>? other)
        {
            if (ReferenceEquals(null, other)) return false;
            if (ReferenceEquals(this, other)) return true;
            return base.Equals(other) && string.Equals(Alias, other.Alias) && EqualityComparer<TEntity>.Default.Equals(Parent, other.Parent) && ParentId == other.ParentId;
        }

        public override bool Equals(object? obj)
        {
            if (ReferenceEquals(null, obj)) return false;
            if (ReferenceEquals(this, obj)) return true;
            if (obj.GetType() != this.GetType()) return false;
            return Equals((NewEventArgs<TEntity>?) obj);
        }

        public override int GetHashCode()
        {
            unchecked
            {
                int hashCode = base.GetHashCode();
                hashCode = (hashCode * 397) ^ Alias.GetHashCode();
                if (Parent is not null)
                {
                    hashCode = (hashCode * 397) ^ EqualityComparer<TEntity>.Default.GetHashCode(Parent);
                }

                hashCode = (hashCode * 397) ^ ParentId;
                return hashCode;
            }
        }

        public static bool operator ==(NewEventArgs<TEntity> left, NewEventArgs<TEntity> right)
        {
            return Equals(left, right);
        }

        public static bool operator !=(NewEventArgs<TEntity> left, NewEventArgs<TEntity> right)
        {
            return !Equals(left, right);
        }
    }
}