using SKMC.Api.Common;
using System;

namespace SKMC.Api.Motion.Model
{
    /// <summary>
    /// IO条件, 可作为触发动作的条件, 也可以作为告警状态的条件
    /// </summary>
    public class DioCnd
    {
        private static readonly MotionCacher motionCacher = ObjectFactory.Resolve<MotionCacher>();

        // 条件函数
        public Func<MotionIO, bool> CndExpress { get; set; }

        public MotionIO DataModel { get; set; }

        public static DioCnd Make(string code) => new DioCnd
        {
            Code = code
        };

        /// <summary>
        /// 创建一个DioCnd
        /// </summary>
        /// <param name="code"></param>
        /// <param name="cndExpress"></param>
        /// <returns></returns>
        public static DioCnd Make(string code, Func<MotionIO, bool> cndExpress) => new DioCnd
        {
            Code = code,
            CndExpress = cndExpress
        };

        /// <summary>
        /// 匹配一个基于MotionIO的条件函数
        /// </summary>
        /// <param name="code"></param>
        /// <param name="cndExpress"></param>
        /// <returns></returns>
        public static bool Match(string code, Func<MotionIO, bool> cndExpress) => cndExpress.Invoke(motionCacher.GetMotionDio(code));

        public bool Match() => CndExpress.Invoke(DataModel);

        public bool Match(Func<MotionIO, bool> cndExpress) => cndExpress.Invoke(DataModel);

        public void Reset()
        {
            if (DataModel != null) DataModel.Reset();
        }

        private string _code;

        public string Code
        {
            get { return _code; }
            set
            {
                _code = value;
                DataModel = motionCacher.GetMotionDio(_code);
            }
        }
    }
}