using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace JSMachine.WMS.PLC.Utils
{
    /// <summary>
    /// PLC字解析辅助类
    /// </summary>
    public static class WordResolveHelper
    {
        /// <summary>
        /// 解析PLC的字为枚举
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="word"></param>
        /// <returns></returns>
        public static List<T> ResolveWord<T>(short word) where T : Enum
        {
            List<T> machineUnitConfigTwoTypes = new();

            //注意，枚举类型没有属性，只有字段
            int enumCount = typeof(T).GetFields().Length;
            int max = 1;
            for (int i = 1; i < enumCount; i++)
            {
                max *= 2;
            }

            //位与运算定义：只有1和1的位于运算结果为1，其他情况均为0
            for (int i = 1; i <= max; i *= 2)
            {
                short ret = (short)(word & i);
                if (ret != 0)
                {
                    machineUnitConfigTwoTypes.Add((T)Enum.Parse(typeof(T), i.ToString()));
                }
            }

            return machineUnitConfigTwoTypes;
        }

        /// <summary>
        /// 解析PLC的字为枚举
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="word"></param>
        /// <returns></returns>
        public static List<T> ResolveWord<T>(ushort word) where T : Enum
        {
            List<T> machineUnitConfigTwoTypes = new();

            //注意，枚举类型没有属性，只有字段
            int enumCount = typeof(T).GetFields().Length;
            int max = 1;
            for (int i = 1; i < enumCount; i++)
            {
                max *= 2;
            }

            //位与运算定义：只有1和1的位于运算结果为1，其他情况均为0
            for (int i = 1; i <= max; i *= 2)
            {
                short ret = (short)(word & i);
                if (ret != 0)
                {
                    machineUnitConfigTwoTypes.Add((T)Enum.Parse(typeof(T), i.ToString()));
                }
            }

            return machineUnitConfigTwoTypes;
        }
    }
}