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

namespace IStation
{
    /// <summary>
    /// 
    /// </summary>
    public class EtaCalculationFactory 
    {
        private const string DllName_Custom = "IStation.EtaCalculation4Custom";
        private const string NameSpace_Custom = "IStation.EtaCalculation";

        //获取DLL名称
        private static string DllName
        {
            get
            {
                var dllName = string.Empty;
                var selector = Settings.Eta.Analy.Method;
                if (selector == 1)
                {
                    dllName = DllName_Custom;
                }
                return dllName;
            }
        }

        private static string NameSpace
        {
            get
            {
                var ns = string.Empty;
                var selector = Settings.Eta.Analy.Method;
                if (selector == 1)
                {
                    ns = NameSpace_Custom;
                }
                return ns;
            }
        }

        /// <summary>
        /// 创建
        /// </summary>
        public static I CreateT<I>() 
        {
            var dllName = DllName;
            if (string.IsNullOrEmpty(dllName))
            {
                LogHelper.Error($"EtaCalculationFactory工厂创建接口对象失败，请检查相关配置参数！");
                return default;
            }
            var ns = NameSpace;
            if (string.IsNullOrEmpty(ns))
            {
                LogHelper.Error($"EtaCalculationFactory工厂创建接口对象失败，请检查相关配置参数！");
                return default;
            }

            var type = typeof(I);
            var className = string.Format("{0}.{1}", ns, type.Name.Remove(0, 1));
            var obj = Assembly.Load(dllName).CreateInstance(className);
            return (I)obj;
        }
        /// <summary>
        /// 创建
        /// </summary>
        public static IStation.IEtaCalculation.IAnalyCalculator Create(long CorpID)
        {
            if (CorpID == 4)
                return new IStation.EtaCalculation.AnalyCalculator4SHYS();
            else if (CorpID == 5)
                return new IStation.EtaCalculation.AnalyCalculatorSMI();
            else
                return null;
        }

    }
}