/// <summary>
/// Fetches the Tf2 Item schema.
/// </summary>
/// <param name="apiKey">The API key.</param>
/// <returns>A deserialized instance of the Item Schema.</returns>
/// <remarks>
/// The schema will be cached for future use if it is updated.
/// </remarks>
public static Schema Init(string apiKey, string schemaLang = null)
{
if (_schema != null)
{
return(_schema);
}
var url = SchemaApiUrlBase + apiKey;
if (schemaLang != null)
{
url += "&language=" + schemaLang;
}
// Get Schema URL
Regex regex = new Regex("https.*txt");
DateTime schemaLastModified;
using (HttpWebResponse response = new SteamWeb().Request(url, "GET"))
{
schemaLastModified = response.LastModified;
string result;
using (var reader = new StreamReader(response.GetResponseStream()))
{
result = reader.ReadToEnd();
}
url = regex.Match(result).Value;
}
_schema = GetSchema(url, schemaLastModified);
return(_schema);
}
// Gets the schema from the web or from the cached file.
private static Schema GetSchema(string url, DateTime schemaLastModified)
{
bool mustUpdateCache = !File.Exists(Cachefile) || schemaLastModified > File.GetCreationTime(Cachefile);
var items = ParseLocalSchema();
List <string> lines = new List <string>();
Dictionary <string, Item> newItems = new Dictionary <string, Item>();
if (mustUpdateCache)
{
using (HttpWebResponse response = new SteamWeb().Request(url, "GET"))
{
using (var reader = new StreamReader(response.GetResponseStream()))
{
while (!reader.EndOfStream)
{
lines.Add(reader.ReadLine());
}
}
}
newItems = ParseWebSchema(VDFConvert.ToJson(lines.ToArray()));
}
if (items == null)
{
items = newItems;
}
else
{
foreach (var item in newItems)
{
if (!items.ContainsKey(item.Key))
{
items[item.Key] = item.Value;
}
}
}
var schema = new Schema()
{
_items = items
};
System.IO.Directory.CreateDirectory(Path.GetDirectoryName(Cachefile) ?? "");
File.WriteAllText(Cachefile, new JavaScriptSerializer {
MaxJsonLength = 62914560
}.Serialize(schema.GetItems()));
return(schema);
}
