using System;
using System.Collections;
using System.IO;
using UnityEngine;

namespace Inno.DLC
{
	public class DLCDownloadTask
	{
		public DLCDownloadTask(string url, string path)
		{
			this._path = path;
			this._www = new WWW(url);
		}

		private void FireDownloadFinishedEvent()
		{
			if (this.DownloadFinishedEvent != null)
			{
				this.DownloadFinishedEvent(this);
			}
		}

		public float WWWProgress
		{
			get
			{
				return (this._www == null) ? 0f : this._www.progress;
			}
		}

		public bool WWWIsDone
		{
			get
			{
				return this._www == null || this._www.isDone;
			}
		}

		public bool IsFinished
		{
			get
			{
				return this._finished;
			}
		}

		public bool IsSuccess
		{
			get
			{
				return this._success;
			}
		}

		public string ErrorMessage
		{
			get
			{
				return this._errorMessage;
			}
		}

		public IEnumerator WaitAndStore()
		{
			yield return this._www;
			if (string.IsNullOrEmpty(this._www.error))
			{
				try
				{
					File.WriteAllBytes(this._path, this._www.bytes);
					this._errorMessage = string.Empty;
					this._success = true;
				}
				catch (Exception ex)
				{
					UnityEngine.Debug.LogError(string.Format("Cannot save DLC file: {0}", ex.Message));
					this._errorMessage = ex.Message;
					this._success = false;
				}
			}
			else
			{
				this._errorMessage = this._www.error;
				this._success = false;
			}
			this._www = null;
			this._finished = true;
			this.FireDownloadFinishedEvent();
			yield break;
		}

		public Action<DLCDownloadTask> DownloadFinishedEvent;

		private string _path;

		private WWW _www;

		private bool _finished;

		private bool _success;

		private string _errorMessage;
	}
}