using System;
using System.Reflection;
using HarmonyLib;
using MAI2.Util;
using Manager;
using Net.Packet;
using Net.Packet.Mai2;

namespace AquaMai.Helpers;

public static class Shim
{
    public delegate string GetAccessTokenMethod(int index);
    public static readonly GetAccessTokenMethod GetAccessToken = new Func<GetAccessTokenMethod>(() => {
      var tOperationManager = Traverse.Create(Singleton<OperationManager>.Instance);
      var tGetAccessToken = tOperationManager.Method("GetAccessToken", [typeof(int)]);
      if (!tGetAccessToken.MethodExists())
      {
        return (index) => throw new MissingMethodException("No matching OperationManager.GetAccessToken() method found");
      }
      return (index) => tGetAccessToken.GetValue<string>(index);
    })();

    public delegate PacketUploadUserPlaylog PacketUploadUserPlaylogCreator(int index, UserData src, int trackNo, Action<int> onDone, Action<PacketStatus> onError = null);
    public static readonly PacketUploadUserPlaylogCreator CreatePacketUploadUserPlaylog = new Func<PacketUploadUserPlaylogCreator>(() => {
      var type = typeof(PacketUploadUserPlaylog);
      if (type.GetConstructor([typeof(int), typeof(UserData), typeof(int), typeof(Action<int>), typeof(Action<PacketStatus>)]) is ConstructorInfo ctor1) {
        return (index, src, trackNo, onDone, onError) => {
          var args = new object[] {index, src, trackNo, onDone, onError};
          return (PacketUploadUserPlaylog)ctor1.Invoke(args);
        };
      }
      else if (type.GetConstructor([typeof(int), typeof(UserData), typeof(int), typeof(string), typeof(Action<int>), typeof(Action<PacketStatus>)]) is ConstructorInfo ctor2) {
        return (index, src, trackNo, onDone, onError) => {
          var accessToken = GetAccessToken(index);
          var args = new object[] {index, src, trackNo, accessToken, onDone, onError};
          return (PacketUploadUserPlaylog)ctor2.Invoke(args);
        };
      }
      else
      {
        throw new MissingMethodException("No matching PacketUploadUserPlaylog constructor found");
      }
    })();

    public delegate PacketUpsertUserAll PacketUpsertUserAllCreator(int index, UserData src, Action<int> onDone, Action<PacketStatus> onError = null);
    public static readonly PacketUpsertUserAllCreator CreatePacketUpsertUserAll = new Func<PacketUpsertUserAllCreator>(() => {
      var type = typeof(PacketUpsertUserAll);
      if (type.GetConstructor([typeof(int), typeof(UserData), typeof(Action<int>), typeof(Action<PacketStatus>)]) is ConstructorInfo ctor1) {
        return (index, src, onDone, onError) => {
          var args = new object[] {index, src, onDone, onError};
          return (PacketUpsertUserAll)ctor1.Invoke(args);
        };
      }
      else if (type.GetConstructor([typeof(int), typeof(UserData), typeof(string), typeof(Action<int>), typeof(Action<PacketStatus>)]) is ConstructorInfo ctor2) {
        return (index, src, onDone, onError) => {
          var accessToken = GetAccessToken(index);
          var args = new object[] {index, src, accessToken, onDone, onError};
          return (PacketUpsertUserAll)ctor2.Invoke(args);
        };
      }
      else
      {
        throw new MissingMethodException("No matching PacketUpsertUserAll constructor found");
      }
    })();
}