CE 1M + 3M Buy, Sell, Hold

//@version=6
indicator("CE 1M + 3M Buy, Sell, Hold", overlay = true)

// =====================================================
// Fixed Settings
// =====================================================

length = 7
mult   = 2.0
useClose = true

// =====================================================
// Chandelier Direction Function
// =====================================================

f_ce_dir(_length, _mult, _useClose) =>
    atr = _mult * ta.atr(_length)

    longStop = (_useClose ? ta.highest(close, _length) : ta.highest(high, _length)) - atr
    longStopPrev = nz(longStop[1], longStop)
    longStop := close[1] > longStopPrev ? math.max(longStop, longStopPrev) : longStop

    shortStop = (_useClose ? ta.lowest(close, _length) : ta.lowest(low, _length)) + atr
    shortStopPrev = nz(shortStop[1], shortStop)
    shortStop := close[1] < shortStopPrev ? math.min(shortStop, shortStopPrev) : shortStop

    var int dir = 1
    dir := close > shortStopPrev ? 1 : close < longStopPrev ? -1 : dir
    dir

// =====================================================
// Timeframe Directions
// =====================================================

dir_1m = f_ce_dir(length, mult, useClose)

dir_3m = request.security(
     syminfo.tickerid,
     "3",
     f_ce_dir(length, mult, useClose),
     barmerge.gaps_off,
     barmerge.lookahead_off)

// =====================================================
// State Logic
// =====================================================

int state = 0
//  1  = BUY
// -1  = SELL
//  0  = HOLD

state := dir_3m == 1 and dir_1m == 1  ?  1 :
         dir_3m == -1 and dir_1m == -1 ? -1 : 0

// Only trigger when state changes
buySignal  = state == 1  and state[1] != 1
sellSignal = state == -1 and state[1] != -1
holdSignal = state == 0  and state[1] != 0

// =====================================================
// Plot
// =====================================================

plotshape(buySignal,  title="BUY",  location=location.belowbar,
          color=color.green, style=shape.labelup, text="BUY")

plotshape(sellSignal, title="SELL", location=location.abovebar,
          color=color.red, style=shape.labeldown, text="SELL")

plotshape(holdSignal, title="HOLD", location=location.bottom,
          color=color.yellow, style=shape.labelup, text="HOLD")