_CM_COT Commercial Net Interest_V2

//Created by ChrisMoody on 3-30-2015
//Modified by BJBuckley on 8-22-2015
//Shows Net Commercials
//Full Credit goes to Greeny fo rcreating original code.  Chris only made slight modifications.
//Chris's Modifications include - Taking away Net Longs and Shorts, Adding Background Highlighting when Commercials go from Long to Short
//My Modifications include - increasing the instrument force codes to the commodities set from just the currencies
//Methodology Is from Jake Bernstein at www.Trade-Futures.com and www.2Chimps.net

study("_CM_COT Commercial Net Interest_V1", shorttitle="_CM_COT Commercial Net Int_V1", precision=0)
force_root = input("", title="Override Product")
is_includeoptions = input(false, type=bool, title="Include Options")
si = input(false, type=bool, title="Show Inverse")
sbc = input(false, type=bool, title="Color Price Bars?")
sbg = input(true, type=bool, title="Show Background Highlight when Commercials Change From Buying to Selling?")
sa1 = input(true, type=bool, title="Alert If Commercials Change From Buying to Selling?")
sa2 = input(true, type=bool, title="Alert If Commercials Change From Selling to Buying?")

fxroot =
	  ticker == "USDCAD" ? "CD" : 
	  ticker == "USDCAD" ? "CD" : 
	  ticker == "USDCHF" ? "SF" : 
	  ticker == "USDCZK" ? "CZ" : 
	  ticker == "USDHUF" ? "FR" : 
	  ticker == "USDILS" ? "IS" : 
	  ticker == "USDJPY" ? "JY" : 
	  ticker == "USDMXN" ? "MP" : 
	  ticker == "USDNOK" ? "UN" : 
	  ticker == "USDPLN" ? "PZ" : 
	  ticker == "USDRUB" ? "RU" : 
	  ticker == "USDSEK" ? "SE" : 
	  ticker == "USDZAR" ? "RA" : 
	  ticker == "EURUSD" ? "EC" :
	  ticker == "E61!" ? "EC" :
	  ticker == "S61!" ? "SF" :
	  ticker == "J61!" ? "JY" :
	  ticker == "D61!" ? "CD" :
	  ticker == "A61!" ? "AD" :
	  ticker == "N61!" ? "NE" :
	  ticker == "B61!" ? "BP" :
	  ticker == "M61!" ? "MP" :
	  ticker == "AUDUSD" ? "AD" : 
	  ticker == "GBPUSD" ? "BP" : 
	  ticker == "NZDUSD" ? "NE" : 
	  ticker == "BRLUSD" ? "BR" : 
	  ticker == "COPPER" ? "HG" :
	  ticker == "LE1!" ? "LC" : 
	  ticker == "GF1!" ? "FC" : 
	  ticker == "HE1!" ? "LH" : 
	  ticker == "ZN1!" ? "TY" : 
	  ticker == "ZB1!" ? "US" : 
	  ticker == "ES1!" ? "SP" : 
	  ticker == "NY1!" ? "NK" :
	  ticker == "USOIL" ? "CL" :
	  ticker == "ZC1!" ? "C" :
	  ticker == "ZS1!" ? "S" :
	  ticker == "ZM1!" ? "SM" :
	  ticker == "ZL1!" ? "BO" :
	  ticker == "ZW1!" ? "W" :
	  ticker == "KE1!" ? "KW" :
	  ticker == "ZO1!" ? "O" :
	  ticker == "ZR1!" ? "RR" :
	  ""
root = force_root == "" ? fxroot == "" ? syminfo.root : fxroot : force_root
code = root + (is_includeoptions ? "_FO_L_ALL" : "_F_L_ALL")

is_inversed = 
	  ticker == "USDCAD" ? true : 
	  ticker == "USDCAD" ? true : 
	  ticker == "USDCHF" ? true : 
	  ticker == "USDCZK" ? true : 
	  ticker == "USDHUF" ? true : 
	  ticker == "USDILS" ? true : 
	  ticker == "USDJPY" ? true : 
	  ticker == "USDMXN" ? true : 
	  ticker == "USDNOK" ? true : 
	  ticker == "USDPLN" ? true : 
	  ticker == "USDRUB" ? true : 
	  ticker == "USDSEK" ? true : 
	  ticker == "USDZAR" ? true : 
	  false

long_total = security("QUANDL:CFTC/"+code+"|4", "W", close)
short_total = security("QUANDL:CFTC/"+code+"|5", "W", close)
//Code for Commercials Net Totals
long = is_inversed ? short_total : long_total
short = is_inversed ? long_total : short_total
net = long - short
//Alert criteria
alert1 = net[1] > 0 and net < 0 ? 1 : 0
alert2 = net[1] < 0 and net >= 0 ? 1 : 0
//Code for Histogram Color
col= net > 0 ? green : red

plot(si and long-short ? (long-short)*-1 : long-short, color = col, title="Net", style=columns)
hline(0, color=black, linestyle=dashed)
barcolor(sbc and (net[1] > 0 and net < 0) ? orange : na)
bgcolor(sbg and (net[1] > 0 and net < 0) ? lime : na, transp=20)

plot(sa1 and alert1 ? alert1 : 0, title="Alert If Commercials Go From Net Buy to Sell", style=line, linewidth=2, color=lime)
plot(sa2 and alert2 ? alert2 : 0, title="Alert If Commercials Go From Net Sell to Buy", style=line, linewidth=2, color=orange)