ContextMenuItem

using System.Collections.Generic;
using UnityEditor;

public class ContextMenuItem
{
    // The name that will be displayed to the user
    public string Name { get; set; }
    // The method that will be called when the menu item is clicked
    public GenericMenu.MenuFunction Callback { get; }
    // Does this menu item have children
    public bool IsParent { get; }
    // Is this menu item part of a sub menu
    public bool IsChild { get; }
    // If this a parent menu item, this holds the children
    public List<ContextMenuItem> ChildItems { get; set; }
    // Show the children of this parent menu item
    public bool ShowChildren { get; set; }
    // If this is a child menu item, store the parents name
    public string ParentName { get; set; }

    /// <summary>
    /// Creates a menu item with just a name
    /// </summary>
    /// <param name="name">The name that will be displayed</param>
    public ContextMenuItem(string name) :
        this(name, null, false, false, "")
    {
    }

    /// <summary>
    /// Creates a menu item that performs an action
    /// </summary>
    /// <param name="name">The name that will be displayed</param>
    /// <param name="callback">The action that is performed when clicked</param>
    public ContextMenuItem(string name, GenericMenu.MenuFunction callback) :
        this(name, callback, false, false, "")
    {
    }

    /// <summary>
    /// Creates a menu item as a parent
    /// </summary>
    /// <param name="name">The name that will be displayed</param>
    /// <param name="callback">The action that is performed when clicked</param>
    /// <param name="isParent">Specifies if this is a parent menu</param>
    public ContextMenuItem(string name, GenericMenu.MenuFunction callback, bool isParent) :
        this(name, callback, isParent, false, "")
    {
    }

    /// <summary>
    /// Creates a menu item a s a child
    /// </summary>
    /// <param name="name">The name that will be displayed</param>
    /// <param name="callback">The action that is performed when clicked</param>
    /// <param name="isParent">Specifies if this is a parent menu item</param>
    /// <param name="isChild">Specifies if this is a child menu item</param>
    /// <param name="parentName">The name of the parent the child belongs to</param>
    public ContextMenuItem(string name, GenericMenu.MenuFunction callback, bool isParent, bool isChild, string parentName)
    {
        Name = name;
        Callback = callback;
        IsParent = isParent;

        if(IsParent)
            ChildItems = new List<ContextMenuItem>();

        IsChild = isChild;
        ParentName = parentName;
    }

    /// <summary>
    /// Add a child menu item
    /// </summary>
    /// <param name="child">The child to add</param>
    public void AddChild(ContextMenuItem child)
    {
        ChildItems.Add(child);
    }

    /// <summary>
    /// Perform the menu items action
    /// </summary>
    public void Execute()
    {
        Callback?.Invoke();
    }
}