﻿using System;

namespace MackySoft.SerializeReferenceExtensions
{
    /// <summary>
    /// An attribute that overrides the name of the type displayed in the SubclassSelector popup.
    /// </summary>
    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Enum | AttributeTargets.Interface, AllowMultiple = false, Inherited = false)]
    public sealed class AddTypeMenuAttribute : Attribute
    {
        public string MenuName { get; }
        public int Order { get; }

        public AddTypeMenuAttribute(string menuName, int order = 0)
        {
            MenuName = menuName;
            Order = order;
        }

        static readonly char[] k_Separators = new char[] { '/' };

        /// <summary>
        /// Returns the menu name split by the '/' separator.
        /// </summary>
        public string[] GetSplittedMenuName()
        {
            return !string.IsNullOrWhiteSpace(MenuName) ? MenuName.Split(k_Separators, StringSplitOptions.RemoveEmptyEntries) : Array.Empty<string>();
        }

        /// <summary>
        /// Returns the display name without the path.
        /// </summary>
        public string GetTypeNameWithoutPath()
        {
            string[] splittedDisplayName = GetSplittedMenuName();
            return (splittedDisplayName.Length != 0) ? splittedDisplayName[splittedDisplayName.Length - 1] : null;
        }
    }
}
