using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Reflection;
using UnityEngine;

namespace Beyond
{
    public static class bInventoryDisplayFormat
    {
        private static readonly List<string> ItemTypeFormats = new List<string>();
        private static readonly List<string> ItemAttributeFormats = new List<string>();

        /// <summary>
        /// Get Item type string format using Description in <seealso cref="bItemType"/> value
        /// </summary>
        /// <param name="value">target Item type</param>
        /// <returns></returns>
        public static string DisplayFormat(this bItemType value)
        {
            if (ItemTypeFormats.Count == 0)
            {
                var values = System.Enum.GetValues(typeof(bItemType)).OfType<bItemType>().ToArray();
                for (int i = 0; i < values.Length; i++)
                {
                    bItemType v = values[i];
                    ItemTypeFormats.Add(GetDisplayFormat(v));
                }
            }
            return ItemTypeFormats[(int)value];
        }

        /// <summary>
        /// Get Item Attribute string format using Description in <seealso cref="bItemAttributes"/> value
        /// </summary>
        /// <param name="value">target Item Attribute</param>
        /// <returns></returns>
        public static string DisplayFormat(this bItemAttributes value)
        {
            if (ItemAttributeFormats.Count == 0)
            {
                var values = System.Enum.GetValues(typeof(bItemAttributes)).OfType<bItemAttributes>().ToArray();
                for (int i = 0; i < values.Length; i++)
                {
                    bItemAttributes v = values[i];
                    ItemAttributeFormats.Add(GetDisplayFormat(v));
                }
            }
            return ItemAttributeFormats[(int)value];
        }

        private static string GetDisplayFormat<T>(this T value) where T : System.Enum
        {
            return
            value
            .GetType()
            .GetMember(value.ToString())
            .FirstOrDefault()
            ?.GetCustomAttribute<DescriptionAttribute>()
            ?.Description
            ?? value.ToString();
        }
    }
}