using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using System.Web;
using System.Web.UI.WebControls;
using UFIDA.U8.Framework.Api.ControlObject.Entity;

namespace UFIDA.U8.Framework.Api.Unit
{
    internal class AssemblyDynamicLoader
    {
        private long taskId;
        private AppDomain appDomain;
        private RemoteLoader remoteLoader;

        internal AssemblyDynamicLoader(long taskId)
        {
            var basePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory,"Bin");
            var binPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, $"U8M{taskId}");

            Directory.CreateDirectory(binPath);

            var setup = new AppDomainSetup
            {
                ApplicationName = $"U8M_{taskId}",
                ApplicationBase = basePath,
                PrivateBinPath = binPath,
                ShadowCopyFiles = "true"
            };
            setup.CachePath = setup.ApplicationBase;
            setup.ShadowCopyDirectories = setup.ApplicationBase;

            appDomain = AppDomain.CreateDomain($"U8M_{taskId}", null, setup);

            var name = Assembly.GetExecutingAssembly().GetName().FullName;
            remoteLoader = (RemoteLoader)appDomain.CreateInstanceAndUnwrap(name, typeof(RemoteLoader).FullName ?? throw new InvalidOperationException());
        }

        internal async Task<BaseResult<string>> Save(LoginParamter paramter, string cCardNum, Dictionary<string, object> input)
        {
            remoteLoader._paramter = paramter;

            return await remoteLoader.Save(cCardNum, input);
        }

        internal async Task<BaseResult<string>> Save(LoginParamter paramter, string cCardNum, List<Dictionary<string, object>> inputs)
        {
            remoteLoader._paramter = paramter;

            return await remoteLoader.Save(cCardNum, inputs);
        }

        /// <summary>
        /// 卸载应用程序域
        /// </summary>
        internal void Unload()
        {
            try
            {
                if (appDomain == null) return;
                AppDomain.Unload(appDomain);
                appDomain = null;
                remoteLoader = null;
            }
            catch (CannotUnloadAppDomainException ex)
            {
                throw ex;
            }
        }
    }
}