using System;
using System.Collections;
using UnityEngine;

namespace SUISS.Cloud
{
	public class CloudRequest<TError> : CustomYieldInstruction
	{
		public CloudRequest(IEnumerator coroutine)
		{
			this._routine = this.InternalRoutine(coroutine);
			this._error = default(TError);
			this._yieldable = CloudRequestRunner.StartCoroutine(this._routine);
		}

		public TError Error
		{
			get
			{
				if (!this.IsDone)
				{
					throw new Exception(string.Format("{0}.Error was read before return error was set!", this));
				}
				return this._error;
			}
		}

		public bool IsDone
		{
			get
			{
				return !this.keepWaiting;
			}
		}

		public override bool keepWaiting
		{
			get
			{
				return this._yieldable.keepWaiting;
			}
		}

		private IEnumerator InternalRoutine(IEnumerator coroutine)
		{
			while (coroutine.MoveNext())
			{
				object obj = coroutine.Current;
				YieldReturn returned = obj as YieldReturn;
				if (returned != null)
				{
					YieldError<TError> yieldError = coroutine.Current as YieldError<TError>;
					if (yieldError != null)
					{
						this._error = yieldError.Value;
						yield break;
					}
					throw new Exception(string.Format("Type missmatch! {0} returned a wrong value {1} to {2}!", coroutine, returned, this));
				}
				else
				{
					yield return coroutine.Current;
				}
			}
			yield break;
		}

		private TError _error;

		private IEnumerator _routine;

		private CustomYieldInstruction _yieldable;
	}
}