gistfile1.txt

public class ProfileService
{
    private static readonly Dictionary<string, int> _starValues
        = new Dictionary<string, int>  {
            {"Star Empty", 0},
            {"Star Quarter", 25},
            {"Star Half", 50},
            {"Star ThreeQuarter", 75},
            {"Star Full", 100}
        };

    public async Task<Profile> ResolveProfileAsync(string region, string gamertag)
    {
        var document = await DownloadDocumentAsync("http://live.xbox.com/" + region + "/Profile?gamertag=" + gamertag);

        var documentNode = document.DocumentNode;

        var profile = new Profile { Gamertag = gamertag };

        profile.Gamerscore = documentNode.SelectSingleNode("//div[@class='gamerscore']").InnerText;

        var badgeNode = documentNode.SelectSingleNode("//div[@class='goldBadge']");
        profile.Tier = badgeNode == null ? "Silver" : "Gold";

        var starNodes = documentNode.SelectNodes("//div[starts-with(@class, 'Star')]");
        foreach (var star in starNodes)
        {
            var kind = star.GetAttributeValue("class", null);
            profile.Reputation += _starValues[kind];
        }

        profile.Presence = documentNode.SelectSingleNode("//div[@class='presence']").InnerText;

        profile.Online = profile.Presence.StartsWith("Online") && profile.Presence != "Online Status Unavailable";

        var mottoNode = documentNode.SelectSingleNode("//div[@class='motto']");
        profile.Motto = mottoNode != null ? mottoNode.InnerText.Trim() : "None";

        profile.Name = documentNode.SelectSingleNode("//div[@class='name']/div").InnerText;

        profile.Location = documentNode.SelectSingleNode("//div[@class='location']/div").InnerText;

        profile.Biography = documentNode.SelectSingleNode("//div[@class='bio']/div").InnerText.Trim();

        profile.Avatar = new Avatar();
        profile.Avatar.Full = string.Format("http://avatar.xboxlive.com/avatar/{0}/avatar-body.png", gamertag);
        profile.Avatar.Small = string.Format("http://avatar.xboxlive.com/avatar/{0}/avatarpic-s.png", gamertag);
        profile.Avatar.Large = string.Format("http://avatar.xboxlive.com/avatar/{0}/avatarpic-l.png", gamertag);

        profile.Avatar.Tile = documentNode.SelectSingleNode("//img[@class='gamerpic']").GetAttributeValue("src", null);
        profile.Avatar.Tile = profile.Avatar.Tile.Replace("https://avatar-ssl", "http://avatar");

        return profile;
    }

    private static async Task<HtmlDocument> DownloadDocumentAsync(string address)
    {
        using (var client = new HttpClient())
        {
            var response = await client.GetAsync(address, HttpCompletionOption.ResponseHeadersRead).ConfigureAwait(false);
            response.EnsureSuccessStatusCode();
            var pageData = await response.Content.ReadAsStringAsync();

            var document = new HtmlDocument();
            document.LoadHtml(pageData);

            return document;
        }
    }
}