crypto: RSI short term

Cryptocoin.py

@@ -77,7 +77,7 @@ class Cryptocoin(object):
 	
 	#dermines the expected growth of coin
 	def analyseCoin(self, coinId):
-		N_DATAPOINTS = 12
+		N_DATAPOINTS = 10
 		TIME_BETWEEN_DATAPOINTS = 86400 * 7 #one week
 
 		#Get the price history:
@@ -105,10 +105,19 @@ class Cryptocoin(object):
 		return growPercentage, stability, history
 		
 		#TODO:
-		# - iets met stabiliteit?
 		# - https://en.wikipedia.org/wiki/Head_and_shoulders_(chart_pattern)
 		# - neural networks???
-		
+	
+	#get the last 14 dayprices of a coin. (can be used by RSI)
+	def getRecentCoinHistory(self, coinId):
+		N_DATAPOINTS = 14
+		TIME_BETWEEN_DATAPOINTS = 86400 #one day
+	
+		history = []			
+		for j in range(0, N_DATAPOINTS-1):
+			history.append(self.getCoinPrice(coinId, "USD", int(time.time()) - (N_DATAPOINTS-j)*TIME_BETWEEN_DATAPOINTS))
+		history.append(self.getCoinPrice(coinId, "USD")) #now
+		return history
 	
 	#will return some random advice about a semi-random crypto coin	
 	def getRandomCoinAdvice(self):
@@ -233,31 +242,36 @@ class Cryptocoin(object):
 		
 		coinId = coinId.upper()
 		
-		growPercentage, coinStability, coinHistory = self.analyseCoin(coinId)
+		growPercentage, coinStability, dummy = self.analyseCoin(coinId)
+		
+		if (growPercentage == 0 and coinStability == 1.0): #aanname. anders moet je weer een extra call doen.
+			yield from ctx.channel.send("Die cryptocoin ken ik niet... :frowning2: ")
+			return
+		
+		time.sleep(0.1) #don't overload the API
+		coinHistory = self.getRecentCoinHistory(coinId)
 		coinRsi = self.rsi(coinHistory) 
-		#TODO, get more recent data to feed the RSI
 		
 		message = ""
-		
 		if (growPercentage < -0.04):
-			if (coinRsi > 70):
+			if (coinRsi > 65):
 				message = "Sell! Sell! Sell! Aan " + coinId + " heb je niks meer."
 			elif (coinStability < 0.3):
 				message = coinId + " takelt op lange termijn af en is instabiel. Net als je moeder."
-			elif (coinRsi < 30):
+			elif (coinRsi < 35):
 				message = "Op de lange termijn is " + coinId + " waardeloos, maar wacht nog even met verkopen."
 			else:
-				message = "Als je " + coinId + " hebt, verkopen die handel. Daar heb je op de lange termijn niks aan."
+				message = coinId + " is geen goede lange termijn investering."
 		elif (growPercentage < 0):
 			message = coinId + " gaat geen winnaar worden. "
-			if (coinRsi > 70):
+			if (coinRsi > 65):
 				message += "Ditchen."
 			elif (coinRsi < 30):
 				message += "Maar hou hem nog even vast."
 		elif (growPercentage < 0.025):
 			if (coinStability > 0.6):
 				message = coinId + " lijkt redelijk stabiel. "
-				if (coinRsi < 30):
+				if (coinRsi < 35):
 					message += "Bovendien een goed moment om te kopen."
 			elif (coinRsi > 70):
 				message = "Ik zou " + coinId + " verkopen."
@@ -266,7 +280,7 @@ class Cryptocoin(object):
 		elif (growPercentage < 0.08):
 			if (coinStability > 0.45):
 				message = coinId + " is een stabiele groeier. "
-				if (coinRsi < 30):
+				if (coinRsi < 35):
 					message += "Nu kopen!"
 			elif (coinStability < 0.2):
 				message = coinId + " groeit lekker, maar is instabiel."
@@ -275,11 +289,11 @@ class Cryptocoin(object):
 			if (coinRsi > 70):
 				message += "Hij lijkt overbought, dus je kan nu verkopen."
 		else: 
-			if (coinRsi < 30 and coinStability > 0.4):
+			if (coinRsi < 35 and coinStability > 0.4):
 				message = "TO THE MOON! Nu " + coinId + " kopen!!"
 			elif (coinStability > 0.7):
 				message = coinId + " is op de lange termijn erg sterk en stabiel!"
-			elif (coinRsi < 30):
+			elif (coinRsi < 35):
 				message = "Ik raad sterk aan om " + coinId + " te kopen."
 			elif (coinRsi < 70):
 				message = coinId + " groeit wel erg hard. Wellicht overbought?"