//@version=5
strategy("Brad Gold Scalping Strategy", overlay=true, initial_capital=10000, default_qty_type=strategy.percent_of_equity, default_qty_value=10)

// --- INPUTS ---
i_rr        = input.float(2.0, title="Risk-to-Reward Ratio", group="Risk Management")
i_lookback  = input.int(15, title="POI Lookback Period", group="Strategy Settings")

// --- STEP 1: TREND ALIGNMENT (1H & 15M Simulation via Multi-Timeframe Security) ---
// Fetch 1-hour and 15-minute trend direction
[h1_close, h1_open] = request.security(syminfo.tickerid, "60", [close[1], open[1]], barmerge.gaps_off, barmerge.lookahead_off)
[m15_close, m15_open] = request.security(syminfo.tickerid, "15", [close[1], open[1]], barmerge.gaps_off, barmerge.lookahead_off)

bool h1_bullish  = h1_close > h1_open
bool h1_bearish  = h1_close < h1_open
bool m15_bullish = m15_close > m15_open
bool m15_bearish = m15_close < m15_open

bool trend_aligned_long  = h1_bullish and m15_bullish
bool trend_aligned_short = h1_bearish and m15_bearish

// --- STEP 2 & 3: MAP POI & PATIENCE (Demand / Supply Zones) ---
float demand_poi = ta.lowest(low, i_lookback)
float supply_poi = ta.highest(high, i_lookback)

bool at_demand_poi = low <= demand_poi + (ta.atr(14) * 0.5)
bool at_supply_poi = high >= supply_poi - (ta.atr(14) * 0.5)

// --- STEP 4: ENTRY MODEL (Liquidity Sweep & Confirmation) ---
// Liquidity sweep: Price pushes past recent low/high and reverses
var bool swept_low  = false
var bool swept_high = false

if (low < ta.lowest(low, 5)[1] and close > ta.lowest(low, 5)[1])
    swept_low := true
    swept_high := false

if (high > ta.highest(high, 5)[1] and close < ta.highest(high, 5)[1])
    swept_high := true
    swept_low := false

// --- STEP 5: EXECUTION & TARGETS ---
bool can_trade = strategy.position_size == 0

// Long Execution
bool trigger_long = trend_aligned_long and at_demand_poi and swept_low
if (can_trade and trigger_long)
    float entry_price = close
    float stop_loss   = low[1] // Below protected sweep low
    float risk        = entry_price - stop_loss
    float target      = entry_price + (risk * i_rr)
    
    if (risk > 0)
        strategy.entry("Gold Long", strategy.long)
        strategy.exit("TP/SL Long", "Gold Long", stop=stop_loss, limit=target)
        swept_low := false

// Short Execution
bool trigger_short = trend_aligned_short and at_supply_poi and swept_high
if (can_trade and trigger_short)
    float entry_price = close
    float stop_loss   = high[1] // Above protected sweep high
    float risk        = stop_loss - entry_price
    float target      = entry_price - (risk * i_rr)
    
    if (risk > 0)
        strategy.entry("Gold Short", strategy.short)
        strategy.exit("TP/SL Short", "Gold Short", stop=stop_loss, limit=target)
        swept_high := false