//@version=5
strategy("Riley Coleman 1-Minute Futures Reversal Strategy", overlay=true, initial_capital=10000, default_qty_type=strategy.percent_of_equity, default_qty_value=10)

// --- INPUTS ---
htf_period = input.timeframe("15", "HTF Support/Resistance Period")
htf_lookback = input.int(20, "HTF Extreme Levels Lookback")
fvg_lookback = input.int(5, "Unhealthy Move (FVG) Lookback Window")
rr_ratio = input.float(3.0, "Risk to Reward Ratio")
use_trailing = input.bool(true, "Use Candle-by-Candle Trailing Stop")
trail_bars = input.int(3, "Trailing Stop Lookback Bars")

// --- HTF SUPPORT/RESISTANCE ---
htf_high = request.security(syminfo.tickerid, htf_period, ta.highest(high, htf_lookback)[1])
htf_low = request.security(syminfo.tickerid, htf_period, ta.lowest(low, htf_lookback)[1])

// Plot high-level support and resistance
plot(htf_high, color=color.new(color.red, 30), linewidth=2, title="HTF Resistance Zone")
plot(htf_low, color=color.new(color.green, 30), linewidth=2, title="HTF Support Zone")

// --- UNHEALTHY MOVE IDENTIFICATION (Fair Value Gaps) ---
// Bullish FVG (Unhealthy move to the upside)
bull_fvg = (low[0] > high[2]) and (close[1] > high[2])
// Bearish FVG (Unhealthy move to the downside)
bear_fvg = (high[0] < low[2]) and (close[1] < low[2])

// Track FVG occurrence bar indexes
var int last_bull_fvg_bar = 0
var int last_bear_fvg_bar = 0

if bull_fvg
    last_bull_fvg_bar := bar_index
if bear_fvg
    last_bear_fvg_bar := bar_index

bull_fvg_active = (bar_index - last_bull_fvg_bar) <= fvg_lookback
bear_fvg_active = (bar_index - last_bear_fvg_bar) <= fvg_lookback

// Highlight overextended moves
plotshape(bull_fvg, title="Bullish FVG (Overextended Up)", style=shape.triangledown, location=location.abovebar, color=color.yellow, size=size.small)
plotshape(bear_fvg, title="Bearish FVG (Overextended Down)", style=shape.triangleup, location=location.belowbar, color=color.fuchsia, size=size.small)

// --- REVERSAL CONDITIONS ---
near_resistance = high >= htf_high
near_support = low <= htf_low

// Reversal triggers when price rejects and sweeps previous candle structural structures
short_trigger = near_resistance and bull_fvg_active and close < low[1]
long_trigger = near_support and bear_fvg_active and close > high[1]

// --- TRADE EXECUTION ---
var float sl_level = na
var float tp_level = na

if short_trigger and strategy.position_size == 0
    sl_level := ta.highest(high, 5)
    risk_dist = sl_level - close
    tp_level := close - (risk_dist * rr_ratio)
    strategy.entry("Short Reversal", strategy.short)
    strategy.exit("Short Exit", "Short Reversal", stop=sl_level, limit=tp_level)

if long_trigger and strategy.position_size == 0
    sl_level := ta.lowest(low, 5)
    risk_dist = close - sl_level
    tp_level := close + (risk_dist * rr_ratio)
    strategy.entry("Long Reversal", strategy.long)
    strategy.exit("Long Exit", "Long Reversal", stop=sl_level, limit=tp_level)

// --- TRAILING STOP LOGIC ---
if use_trailing and strategy.position_size != 0
    if strategy.position_size < 0
        // Trailing short using the highest high of recent candle bars
        trail_stop = ta.highest(high, trail_bars)
        strategy.exit("Short Exit", "Short Reversal", stop=trail_stop)
    else if strategy.position_size > 0
        // Trailing long using the lowest low of recent candle bars
        trail_stop = ta.lowest(low, trail_bars)
        strategy.exit("Long Exit", "Long Reversal", stop=trail_stop)