//@version=5
indicator("DIMIS Trend Reversal Indicator", overlay=true, max_labels_count=500)
rsiLength = input.int(14, "RSI Length")
volumeLength = input.int(20, "Volume Average Length")
volumeSpikeMultiple = input.float(1.5, "Volume Spike Multiple", minval=1.0, step=0.1)
extremeLength = input.int(20, "Price Extreme Length")
rsi = ta.rsi(close, rsiLength)
volAvg = ta.sma(volume, volumeLength)
volSpike = volume > volAvg * volumeSpikeMultiple
lowExtreme = low <= ta.lowest(low, extremeLength)[1]
highExtreme = high >= ta.highest(high, extremeLength)[1]
bullMomentum = ta.crossover(rsi, 30) or (low < low[1] and rsi > rsi[1])
bearMomentum = ta.crossunder(rsi, 70) or (high > high[1] and rsi < rsi[1])
macroFilter = input.bool(true, "Macro / GLI filter supportive")
bullReversal = lowExtreme and volSpike and bullMomentum and macroFilter
bearReversal = highExtreme and volSpike and bearMomentum and macroFilter
plotshape(bullReversal, title="Bullish Reversal", style=shape.triangleup, location=location.belowbar, color=color.lime, size=size.small, text="DIMIS Bull")
plotshape(bearReversal, title="Bearish Reversal", style=shape.triangledown, location=location.abovebar, color=color.red, size=size.small, text="DIMIS Bear")
alertcondition(bullReversal, "Bullish Reversal", "DIMIS bullish reversal: {{ticker}} {{interval}}")
alertcondition(bearReversal, "Bearish Reversal", "DIMIS bearish reversal: {{ticker}} {{interval}}")