//private bool StockPriceExists(string id, DateTime date)
//{
// return _context.StockPrice.Any(e => e.StockID == id && e.Date == date);
//}
#region "FORMULA"
//private async Task<bool> InitIndicator()
//{
// foreach (Stock stock in await _context.Stock.Where(s=>s.StockID == "AALI").ToListAsync())
// //foreach (Stock stock in _context.Stock.Where(m => m.StockID == "AALI" || m.StockID == "BBCA" || m.StockID == "PTBA"))
// {
// //Console.Write("TEST " + stock.StockID);
// System.Diagnostics.Debug.WriteLine("TEST " + stock.StockID);
// //*cari semua histori harga
// var data = _context.StockPrice.Where(c => c.StockID == stock.StockID).OrderBy(c => c.Date).ToList();
// var count = data.Count();
// if (count > 0)
// {
// for(int i=0; i<count-1; i++)
// {
// var price = data[0];
// var counter = i;
// //foreach (StockPrice price in data.ToList().Last())
// //{
// price.MA20 = Calculation.MA(counter, data.ToArray(), 20);
// price.MA60 = Calculation.MA(counter, data.ToArray(), 60);
// price.Support = Calculation.Support(counter, data.ToArray());
// price.Resistance = Calculation.Resistance(counter, data.ToArray());
// dynamic t3 = Calculation.HighestLowest(counter, data.ToArray(), 3);
// price.Highest3Months = (t3 == null ? null : t3.Highest);
// price.Lowest3Months = (t3 == null ? null : t3.Lowest);
// dynamic t6 = Calculation.HighestLowest(counter, data.ToArray(), 6);
// price.Highest6Months = (t6 == null ? null : t6.Highest);
// price.Lowest6Months = (t6 == null ? null : t6.Lowest);
// dynamic t12 = Calculation.HighestLowest(counter, data.ToArray(), 12);
// price.Highest12Months = (t12 == null ? null : t12.Highest);
// price.Lowest12Months = (t12 == null ? null : t12.Lowest);
// price.TrendHigh = Calculation.TrendHigh(counter, data.ToArray(), price.Highest3Months, price.Highest6Months, price.Highest12Months);
// price.TrendLow = Calculation.TrendLow(counter, data.ToArray(), price.Lowest3Months, price.Lowest6Months, price.Lowest12Months);
// //dynamic highlow = BreakHighLowCalc(counter, data.ToArray());
// //price.TrendHigh = highlow.TrendHigh;
// //price.TrendLow = highlow.TrendLow;
// price.EMA12 = Calculation.EMA(counter, data.ToArray(), 12);
// price.EMA26 = Calculation.EMA(counter, data.ToArray(), 26);
// if (price.EMA12 == null || price.EMA26 == null)
// price.MACD = null;
// else
// price.MACD = price.EMA12 - price.EMA26;
// price.SignalLine = Calculation.SignalLine(counter, data.ToArray(), 9);
// if (price.MACD == null || price.SignalLine == null)
// price.GSLine = null;
// else
// price.GSLine = (Decimal)(price.MACD + price.SignalLine) / 2;
// price.SD20 = Calculation.SD(counter, data.ToArray(), 20);
// price.BBUpper = price.MA20 + 2 * price.SD20;
// price.BBLower = price.MA20 - 2 * price.SD20;
// }
// //*ambil tanggal terbaru
// //var price = await data.LastAsync();
// //counter++;
// //}
// }
// }
// await _context.SaveChangesAsync();
// return true;
//}
private async Task <bool> CalculateIndicator2(string stockID, StockPrice price)
{
//foreach (Stock stock in await _context.Stock.ToListAsync())
//foreach (Stock stock in _context.Stock.Where(m => m.StockID == "AALI" || m.StockID == "BBCA" || m.StockID == "PTBA"))
{
//Console.Write("TEST " + stock.StockID);
System.Diagnostics.Debug.WriteLine("TEST " + stockID);
var prices = _context.StockPrice.Where(c => c.StockID == stockID).AsNoTracking();
DateTime last_date;
if (prices.Count() > 0)
{
last_date = prices.Max(m => m.Date);
}
else
{
last_date = price.Date;
}
//*cari semua histori harga
StockPrice[] data = prices.Where(c => c.Date >= last_date.AddMonths(-13)).OrderBy(c => c.Date).AsNoTracking().ToArray();
//*tambahkan data terbaru dalam memory
data = data.Append(price).ToArray();
var countx = data.Count();
//StockPrice dataPrev = null;
//var indexPrev = 0;
if (countx >= 5)
{
//*Update harga 3 hari sebelumnya
for (int i = countx - 4; i <= countx - 2; i++)
{
//dataPrev = data[i];
StockPrice dataPrev = await _context.StockPrice.SingleOrDefaultAsync(m => m.Date == data[i].Date && m.StockID == stockID);
//indexPrev = countx - 3;
dataPrev.Support = Calculation.Support(i, data);
data[i].Support = dataPrev.Support;
dataPrev.Resistance = Calculation.Resistance(i, data);
data[i].Resistance = dataPrev.Resistance;
//dataPrev.Support = 60;
//dataPrev.Resistance = 28000;
await _context.SaveChangesAsync();
}
}
var count = data.Count();
if (count > 0)
{
//for(int i=0; i<data.Length-1; i++)
//*ambil tanggal terbaru
//var price = data.Last();
var counter = count - 1;
//foreach (StockPrice price in data.ToList().Last())
//{
price.MA20 = Calculation.MA(counter, data, 20);
price.MA60 = Calculation.MA(counter, data, 60);
price.Support = Calculation.Support(counter, data);
price.Resistance = Calculation.Resistance(counter, data);
dynamic t3 = Calculation.HighestLowest(counter, data, 3);
price.Highest3Months = (t3 == null ? null : t3.Highest);
price.Lowest3Months = (t3 == null ? null : t3.Lowest);
dynamic t6 = Calculation.HighestLowest(counter, data, 6);
price.Highest6Months = (t6 == null ? null : t6.Highest);
price.Lowest6Months = (t6 == null ? null : t6.Lowest);
dynamic t12 = Calculation.HighestLowest(counter, data, 12);
price.Highest12Months = (t12 == null ? null : t12.Highest);
price.Lowest12Months = (t12 == null ? null : t12.Lowest);
price.TrendHigh = Calculation.TrendHigh(counter, data, price.Highest3Months, price.Highest6Months, price.Highest12Months);
price.TrendLow = Calculation.TrendLow(counter, data, price.Lowest3Months, price.Lowest6Months, price.Lowest12Months);
//dynamic highlow = BreakHighLowCalc(counter, data);
//price.TrendHigh = highlow.TrendHigh;
//price.TrendLow = highlow.TrendLow;
price.EMA12 = Calculation.EMA(counter, data, 12);
price.EMA26 = Calculation.EMA(counter, data, 26);
if (price.EMA12 == null || price.EMA26 == null)
{
price.MACD = null;
}
else
{
price.MACD = price.EMA12 - price.EMA26;
}
price.SignalLine = Calculation.SignalLine(counter, data, 9);
if (price.MACD == null || price.SignalLine == null)
{
price.GSLine = null;
}
else
{
price.GSLine = (Decimal)(price.MACD + price.SignalLine) / 2;
}
if (counter >= 1)
{
if (price.GSLine != null && data[counter - 1].GSLine != null)
{
if (price.GSLine > data[counter - 1].GSLine)
{
price.GSLineDirection = "U";
}
else if (price.GSLine < data[counter - 1].GSLine)
{
price.GSLineDirection = "D";
}
else
{
price.GSLineDirection = "N";
}
}
else
{
price.GSLineDirection = "";
}
}
else
{
price.GSLineDirection = "";
}
price.SD20 = Calculation.SD(counter, data, 20);
price.BBUpper = price.MA20 + 2 * price.SD20;
price.BBLower = price.MA20 - 2 * price.SD20;
if (price.Frequency > 0)
{
price.BigWave = (Decimal)price.Volume / (Decimal)(price.Frequency * price.Frequency * price.Frequency);
}
else
{
price.BigWave = 0;
}
price.AverageBigWave = Calculation.AverageBigWave(counter, data, 3);
//counter++;
//}
}
}
//await _context.SaveChangesAsync();
return(true);
}
public async Task <bool> InitIndicator(string stockID)
{
//*cari semua histori harga
var allData = await _context.StockPrice.Where(c => c.StockID == stockID).OrderBy(c => c.Date).ToListAsync();
var data = await _context.StockPrice.Where(c => c.StockID == stockID).OrderBy(c => c.Date).AsNoTracking().ToArrayAsync();
int counter = 0;
foreach (var price in allData)
{
//var data = _context.StockPrice.Where(c => c.StockID == stock.StockID && c.Date >= price.Date.AddMonths(-13)).OrderBy(c => c.Date).AsNoTracking();
System.Diagnostics.Debug.WriteLine("TEST " + stockID + " " + counter.ToString());
price.MA20 = Calculation.MA(counter, data, 20);
data[counter].MA20 = price.MA20;
price.MA60 = Calculation.MA(counter, data, 60);
data[counter].MA60 = price.MA60;
price.Support = Calculation.Support(counter, data);
data[counter].Support = price.Support;
price.Resistance = Calculation.Resistance(counter, data);
data[counter].Resistance = price.Resistance;
dynamic t3 = Calculation.HighestLowest(counter, data, 3);
price.Highest3Months = (t3 == null ? null : t3.Highest);
data[counter].Highest3Months = price.Highest3Months;
price.Lowest3Months = (t3 == null ? null : t3.Lowest);
data[counter].Lowest3Months = price.Lowest3Months;
dynamic t6 = Calculation.HighestLowest(counter, data, 6);
price.Highest6Months = (t6 == null ? null : t6.Highest);
data[counter].Highest6Months = price.Highest6Months;
price.Lowest6Months = (t6 == null ? null : t6.Lowest);
data[counter].Lowest6Months = price.Lowest6Months;
dynamic t12 = Calculation.HighestLowest(counter, data, 12);
price.Highest12Months = (t12 == null ? null : t12.Highest);
data[counter].Highest12Months = price.Highest12Months;
price.Lowest12Months = (t12 == null ? null : t12.Lowest);
data[counter].Lowest12Months = price.Lowest12Months;
price.TrendHigh = Calculation.TrendHigh(counter, data, price.Highest3Months, price.Highest6Months, price.Highest12Months);
data[counter].TrendHigh = price.TrendHigh;
price.TrendLow = Calculation.TrendLow(counter, data, price.Lowest3Months, price.Lowest6Months, price.Lowest12Months);
data[counter].TrendLow = price.TrendLow;
price.EMA12 = Calculation.EMA(counter, data, 12);
data[counter].EMA12 = price.EMA12;
price.EMA26 = Calculation.EMA(counter, data, 26);
data[counter].EMA26 = price.EMA26;
if (price.EMA12 == null || price.EMA26 == null)
{
price.MACD = null;
}
else
{
price.MACD = price.EMA12 - price.EMA26;
}
data[counter].MACD = price.MACD;
price.SignalLine = Calculation.SignalLine(counter, data, 9);
data[counter].SignalLine = price.SignalLine;
if (price.MACD == null || price.SignalLine == null)
{
price.GSLine = null;
}
else
{
price.GSLine = (Decimal)(price.MACD + price.SignalLine) / 2;
}
data[counter].GSLine = price.GSLine;
if (counter >= 1)
{
if (price.GSLine != null && data[counter - 1].GSLine != null)
{
if (price.GSLine > data[counter - 1].GSLine)
{
price.GSLineDirection = "U";
}
else if (price.GSLine < data[counter - 1].GSLine)
{
price.GSLineDirection = "D";
}
else
{
price.GSLineDirection = "N";
}
}
else
{
price.GSLineDirection = "";
}
}
else
{
price.GSLineDirection = "";
}
price.SD20 = Calculation.SD(counter, data, 20);
data[counter].SD20 = price.SD20;
if (price.Frequency > 0)
{
price.BigWave = (Decimal)price.Volume / (Decimal)(price.Frequency * price.Frequency * price.Frequency);
}
else
{
price.BigWave = 0;
}
data[counter].BigWave = price.BigWave;
price.AverageBigWave = Calculation.AverageBigWave(counter, data, 3);
data[counter].AverageBigWave = price.AverageBigWave;
price.BBUpper = price.MA20 + 2 * price.SD20;
data[counter].BBUpper = price.BBUpper;
price.BBLower = price.MA20 - 2 * price.SD20;
data[counter].BBLower = price.BBLower;
counter++;
}
await _context.SaveChangesAsync();
return(true);
}