using System;

using System.Collections.Generic;

using System.Globalization;

using System.Net;

using System.Threading.Tasks;

namespace UnityLauncherPro

{

public static class GetUnityUpdates

{

static bool isDownloadingUnityList = false;

static readonly string unityVersionsURL = @"http://symbolserver.unity3d.com/000Admin/history.txt";

public static async Task<string> Scan()

{

if (isDownloadingUnityList == true)

{

Console.WriteLine("We are already downloading ...");

return null;

}

isDownloadingUnityList = true;

//SetStatus("Downloading list of Unity versions ...");

string result = null;

// download list of Unity versions

using (WebClient webClient = new WebClient())

{

Task<string> downloadStringTask = webClient.DownloadStringTaskAsync(new Uri(unityVersionsURL));

try

{

result = await downloadStringTask;

}

catch (WebException)

{

Console.WriteLine("It's a web exception");

}

catch (Exception)

{

Console.WriteLine("It's not a web exception");

}

isDownloadingUnityList = false;

}

return result;

}

public static Updates[] Parse(string items)// object sender, DownloadStringCompletedEventArgs e)

{

isDownloadingUnityList = false;

//SetStatus("Downloading list of Unity versions ... done");

var receivedList = items.Split(new[] { Environment.NewLine }, StringSplitOptions.None);

if (receivedList == null && receivedList.Length < 1) return null;

Array.Reverse(receivedList);

var updates = new List<Updates>();

// parse into data

for (int i = 0, len = receivedList.Length; i < len; i++)

{

var row = receivedList[i].Split(',');

var versionTemp = row[6].Trim('"');

var u = new Updates();

u.ReleaseDate = DateTime.ParseExact(row[3], "MM/dd/yyyy", CultureInfo.InvariantCulture); //DateTime ? lastUpdated = Tools.GetLastModifiedTime(csprojFile);

u.Version = versionTemp;

updates.Add(u);

}

return updates.ToArray();

}

}

}