Buy and sell at support and resistance code

// === PARAMETERS ===
supportLookback = 50
resistanceLookback = 50
testTolerance = 2.0        // Looser tolerance for matching levels
minTests = 1               // Allow support/resistance with only 1 test
atrPeriod = 14
minATRMultiplier = 1.0     // Less strict ATR confirmation

// === VARIABLES ===
strongSupport = 0
strongResistance = 0
supportTests = 0
resistanceTests = 0

// === ATR Calculation ===
atr = AverageTrueRange[atrPeriod]
avgATR = Average[atrPeriod](atr)
atrConfirmed = atr >= minATRMultiplier * avgATR

// === DETECT STRONG SUPPORT ===
for i = 1 to supportLookback do
if close[i] < close[i+1] and close[i] < close[i-1] then
level = close[i]
tests = 0
for j = 1 to supportLookback do
if abs(close[j] - level) <= testTolerance then
tests = tests + 1
endif
next
if tests >= minTests then
strongSupport = level
supportTests = tests
break
endif
endif
next

// === DETECT STRONG RESISTANCE ===
for i = 1 to resistanceLookback do
if close[i] > close[i+1] and close[i] > close[i-1] then
level = close[i]
tests = 0
for j = 1 to resistanceLookback do
if abs(close[j] - level) <= testTolerance then
tests = tests + 1
endif
next
if tests >= minTests then
strongResistance = level
resistanceTests = tests
break
endif
endif
next

// === DEBUG VISUALIZATION ===
if strongSupport > 0 then
DRAWSEGMENT(barindex - 10, strongSupport, barindex, strongSupport) COLOURED(0,255,0)
endif

if strongResistance > 0 then
DRAWSEGMENT(barindex - 10, strongResistance, barindex, strongResistance) COLOURED(255,0,0)
endif

// === ENTRY CONDITIONS ===
buySignal  = close <= strongSupport and atrConfirmed
sellSignal = close >= strongResistance and atrConfirmed

// === EXECUTE TRADES ===
IF buySignal THEN
BUY 1 CONTRACT AT MARKET
ENDIF

IF sellSignal THEN
SELLSHORT 1 CONTRACT AT MARKET
ENDIF

// === OPTIONAL: EXIT LOGIC ===
// SET STOP pLOSS 5
// SET TARGET pPROFIT 10

Could anyone help in checking this code and fix any error