//@version=6
indicator(“Nifty Trend Retest Pro”, overlay=true, max_labels_count=500)

// ===== INPUTS =====
fastLen = input.int(20, “Fast EMA”, minval=1)
slowLen = input.int(50, “Slow EMA”, minval=1)
trendTF = input.timeframe(“15”, “Higher Timeframe”)
pivotLen = input.int(5, “Swing Pivot Length”, minval=2)
atrLen = input.int(14, “ATR Length”)
retestATR = input.float(0.20, “Retest Tolerance (ATR)”, minval=0.05, step=0.05)
rr1 = input.float(1.0, “Target 1 (R)”, minval=0.5, step=0.5)
rr2 = input.float(2.0, “Target 2 (R)”, minval=1.0, step=0.5)
showLevels = input.bool(true, “Show Entry / SL / Targets”)
showEMAs = input.bool(true, “Show EMAs”)

// ===== EMA TREND =====
ema20 = ta.ema(close, fastLen)
ema50 = ta.ema(close, slowLen)

htfClose = request.security(syminfo.tickerid, trendTF, close[1], lookahead=barmerge.lookahead_on)
htfFast = request.security(syminfo.tickerid, trendTF, ta.ema(close, fastLen)[1], lookahead=barmerge.lookahead_on)
htfSlow = request.security(syminfo.tickerid, trendTF, ta.ema(close, slowLen)[1], lookahead=barmerge.lookahead_on)

bullTrend = htfFast > htfSlow and htfClose > htfFast
bearTrend = htfFast < htfSlow and htfClose < htfFast

// ===== MARKET STRUCTURE =====
ph = ta.pivothigh(high, pivotLen, pivotLen)
pl = ta.pivotlow(low, pivotLen, pivotLen)

var float lastHigh = na
var float lastLow = na

if not na(ph)
lastHigh := ph
if not na(pl)
lastLow := pl

// ===== BREAKOUT / BREAKDOWN =====
atr = ta.atr(atrLen)
tol = atr * retestATR

breakUp = not na(lastHigh) and close > lastHigh and close[1] <= lastHigh
breakDown = not na(lastLow) and close < lastLow and close[1] >= lastLow

var float bullLevel = na
var float bearLevel = na
var bool waitBuy = false
var bool waitSell = false

if breakUp and bullTrend
bullLevel := lastHigh
waitBuy := true
waitSell := false

if breakDown and bearTrend
bearLevel := lastLow
waitSell := true
waitBuy := false

// Cancel stale setups if price moves too far away
if waitBuy and close > bullLevel + 2.0 * atr
waitBuy := false

if waitSell and close < bearLevel – 2.0 * atr
waitSell := false

// ===== RETEST + CANDLE CONFIRMATION =====
bullCandle = close > open and close > close[1]
bearCandle = close < open and close < close[1]

buySetup = waitBuy and not na(bullLevel) and low <= bullLevel + tol and close > bullLevel and bullCandle
sellSetup = waitSell and not na(bearLevel) and high >= bearLevel – tol and close < bearLevel and bearCandle

// Signals only after bar close
buySignal = buySetup and bullTrend and barstate.isconfirmed
sellSignal = sellSetup and bearTrend and barstate.isconfirmed

// ===== ENTRY / STOP LOSS / TARGETS =====
var float entryPrice = na
var float stopPrice = na
var float target1 = na
var float target2 = na
var int tradeDir = 0

if buySignal
float sl = math.min(ta.lowest(low, pivotLen + 1), bullLevel)
float risk = close – sl
if risk > syminfo.mintick
entryPrice := close
stopPrice := sl
target1 := close + risk * rr1
target2 := close + risk * rr2
tradeDir := 1
waitBuy := false

if sellSignal
float sl = math.max(ta.highest(high, pivotLen + 1), bearLevel)
float risk = sl – close
if risk > syminfo.mintick
entryPrice := close
stopPrice := sl
target1 := close – risk * rr1
target2 := close – risk * rr2
tradeDir := -1
waitSell := false

// ===== CHART DISPLAY =====
plot(showEMAs ? ema20 : na, “EMA 20”, color=color.aqua, linewidth=2)
plot(showEMAs ? ema50 : na, “EMA 50″, color=color.orange, linewidth=2)

plotshape(buySignal, title=”BUY”, text=”BUY”, style=shape.labelup, location=location.belowbar, color=color.green, textcolor=color.white, size=size.small)
plotshape(sellSignal, title=”SELL”, text=”SELL”, style=shape.labeldown, location=location.abovebar, color=color.red, textcolor=color.white, size=size.small)

plot(showLevels ? entryPrice : na, “Entry”, color=color.blue, linewidth=2, style=plot.style_linebr)
plot(showLevels ? stopPrice : na, “Stop Loss”, color=color.red, linewidth=2, style=plot.style_linebr)
plot(showLevels ? target1 : na, “Target 1”, color=color.yellow, linewidth=2, style=plot.style_linebr)
plot(showLevels ? target2 : na, “Target 2”, color=color.lime, linewidth=2, style=plot.style_linebr)

// ===== TREND DASHBOARD =====
var table dash = table.new(position.top_right, 2, 3, border_width=1)

if barstate.islast
table.cell(dash, 0, 0, “NIFTY TREND”, bgcolor=color.gray, text_color=color.white)
table.cell(dash, 1, 0, bullTrend ? “BULLISH” : bearTrend ? “BEARISH” : “NEUTRAL”, bgcolor=bullTrend ? color.green : bearTrend ? color.red : color.gray, text_color=color.white)
table.cell(dash, 0, 1, “Chart EMA”, text_color=chart.fg_color)
table.cell(dash, 1, 1, ema20 > ema50 ? “UP” : ema20 < ema50 ? “DOWN” : “FLAT”, text_color=chart.fg_color)
table.cell(dash, 0, 2, “Last Signal”, text_color=chart.fg_color)
table.cell(dash, 1, 2, tradeDir == 1 ? “BUY” : tradeDir == -1 ? “SELL” : “NONE”, text_color=chart.fg_color)

// ===== ALERTS =====
alertcondition(buySignal, title=”BUY Alert”, message=”Nifty Trend Retest Pro: BUY setup confirmed on {{ticker}} at {{close}}”)
alertcondition(sellSignal, title=”SELL Alert”, message=”Nifty Trend Retest Pro: SELL setup confirmed on {{ticker}} at {{close}}”)