public FileResult CreateChart(string itemName, string leagueName)
{
ItemsDataContext itemsDB = new ItemsDataContext(DATA_CONNECTION_STRING);
var result = from item in itemsDB.Items
where item.Name == itemName &&
item.League == leagueName
orderby item.Timestamp ascending
select item;
Chart chart = new Chart();
chart.Width = 900;
chart.Height = 600;
chart.BackColor = Color.LightGray;
chart.BorderlineDashStyle = ChartDashStyle.Solid;
chart.BorderlineWidth = 1;
chart.Palette = ChartColorPalette.BrightPastel;
chart.BorderlineColor = Color.Black;
chart.RenderType = RenderType.BinaryStreaming;
chart.BorderSkin.SkinStyle = BorderSkinStyle.Emboss;
chart.AntiAliasing = AntiAliasingStyles.All;
chart.TextAntiAliasingQuality = TextAntiAliasingQuality.Normal;
chart.Titles.Add(CreateTitle(string.Format("{0} in {1} league", itemName, leagueName)));
chart.Legends.Add(new Legend());
chart.Series.Add(CreateSeries("Items listed", result, x => (float)x.MaxPrice, Color.Blue));
chart.Series.Add(CreateSeries("Median Price", result, x => (float)x.MedianPrice, Color.Green));
chart.Series.Add(CreateSeries("Mean Price", result, x => (float)x.MeanPrice, Color.Orange));
chart.Series.Add(CreateSeries("Min Price", result, x => (float)x.MinPrice, Color.Violet));
chart.Series.Add(CreateSeries("Max Price", result, x => (float)x.MaxPrice, Color.Red));
chart.ChartAreas.Add(CreateChartArea("Items listed", "Number of listings"));
chart.ChartAreas.Add(CreateChartArea("Median Price"));
chart.ChartAreas.Add(CreateChartArea("Mean Price"));
chart.ChartAreas.Add(CreateChartArea("Min Price"));
chart.ChartAreas.Add(CreateChartArea("Max Price"));
MemoryStream ms = new MemoryStream();
chart.SaveImage(ms);
return File(ms.GetBuffer(), @"image/png");
}
static void Main(string[] args)
{
var uri = new Uri(URI_STRING);
var settings = new ConnectionConfiguration(uri)
.PrettyJson(true)
.UsePrettyResponses(true);
var client = new ElasticsearchClient(settings);
ItemNamesDataContext itemNamesDB = new ItemNamesDataContext(DATA_CONNETION_STRING);
ItemsDataContext itemsDB = new ItemsDataContext(DATA_CONNETION_STRING);
while (true)
{
// Ordering so we prioritize items that haven't been updated in a while (or ever - so null = yesterday)
foreach (ItemName itemName in itemNamesDB.ItemNames.OrderBy(row => row.LastChecked ?? DateTime.Now.AddDays(-1)))
{
string[] leagues = {
"Standard", "Hardcore", "Warbands", "Tempest"
};
foreach (string league in leagues)
{
int amountOfItems;
int scanned = 0;
List<float> prices = new List<float>();
do
{
Response response;
try
{
response = GetItemsByName(itemName.Name, league, scanned, 200, client);
amountOfItems = response.hits.total;
scanned += response.hits.hits.Count();
foreach (Hit hit in response.hits.hits)
{
prices.Add(hit._source.shop.chaosEquiv);
}
}
catch (System.InvalidOperationException e)
{
// Deserializer found null value -> query resulted empty response
amountOfItems = 0;
}
// Just to monitor status
Console.WriteLine(string.Format("{0} / {1}", scanned, amountOfItems));
// Let's try to not get banned
System.Threading.Thread.Sleep(2000);
} while (scanned < amountOfItems);
prices.Sort();
var entry = new Item
{
Name = itemName.Name,
Amount = amountOfItems,
League = league,
MaxPrice = prices.Any() ? prices.Last() : 0,
MinPrice = prices.Any() ? prices.First() : 0,
MeanPrice = prices.Any() ? prices.Average() : 0,
MedianPrice = prices.Any() ? prices[prices.Count() / 2] : 0,
Timestamp = DateTime.Now
};
itemsDB.Items.InsertOnSubmit(entry);
Console.WriteLine(string.Format("min_price: {0}, max_price: {1}, median: {2}, mean: {3}, item: {4}",
entry.MinPrice, entry.MaxPrice, entry.MedianPrice, entry.MeanPrice, itemName.Name));
}
itemName.LastChecked = DateTime.Now;
try
{
itemNamesDB.SubmitChanges();
itemsDB.SubmitChanges();
}
catch (Exception e)
{
// DB might be busy, or being accessed by someone else and submitting may fail
// It happens only every few hundred submits so I decided to just keep ignore it and continue
continue;
}
}
}
}
