//@version=5
strategy("Amas PFT 1:1 Prop Firm Continuation & Reversal Strategy", overlay=true, initial_capital=50000, default_qty_type=strategy.percent_of_equity, default_qty_value=10, commission_type=strategy.commission.percent, commission_value=0.0)

// ==========================================
// INPUTS & PARAMETERS
// ==========================================
str_mode        = input.string("Both", "Trading Model", options=["Continuation", "Reversal", "Both"], group="Strategy Mode")
rr_ratio        = input.float(1.0, "Risk:Reward Ratio", minval=0.5, step=0.1, group="Risk Management")
use_fixed_pts   = input.bool(false, "Use Fixed Points for Stop Loss", group="Risk Management")
fixed_sl_pts    = input.float(20.0, "Fixed Stop Loss (Points)", minval=1.0, group="Risk Management")
atr_period      = input.int(14, "ATR Period (Dynamic SL)", minval=1, group="Risk Management")
atr_mult        = input.float(1.5, "ATR Multiplier", minval=0.5, step=0.1, group="Risk Management")

// Continuation Parameters
disp_mult       = input.float(1.2, "Displacement Candle Body Multiplier", minval=0.8, step=0.1, group="Continuation Model")

// Time Filter
use_time_filter = input.bool(true, "Use Session Time Filter", group="Time Filter")
session_time    = input.session("0930-1600", "Trading Session (Exchange Time)", group="Time Filter")

// ==========================================
// CALCULATIONS & INDICATORS
// ==========================================
atr_val = ta.atr(atr_period)
in_session = use_time_filter ? not na(time(timeframe.period, session_time)) : true

// Candle Properties
candle_body  = math.abs(close - open)
candle_range = high - low
avg_body     = ta.sma(candle_body, 20)

// Fair Value Gaps (FVG) - 3 Candle Pattern
// Bullish FVG: Low of candle 0 > High of candle 2
is_bull_fvg  = low[0] > high[2]
// Bearish FVG: High of candle 0 < Low of candle 2
is_bear_fvg  = high[0] < low[2]

// ==========================================
// CONTINUATION MODEL (Candle Projection)
// ==========================================
// HTF Displacement: Body significantly larger than average body
is_bull_displacement = (close[1] > open[1]) and (candle_body[1] > avg_body[1] * disp_mult) and (close[1] > high[2])
is_bear_displacement = (close[1] < open[1]) and (candle_body[1] > avg_body[1] * disp_mult) and (close[1] < low[2])

// Continuation Entry Logic:
// Bullish Continuation: After bullish displacement, current price dips below open of current bar or retests FVG
long_continuation = is_bull_displacement and (low < open[1] or is_bull_fvg[1])
// Bearish Continuation: After bearish displacement, current price rallies above open of current bar or retests FVG
short_continuation = is_bear_displacement and (high > open[1] or is_bear_fvg[1])

// ==========================================
// REVERSAL MODEL (FVG Failure / 1-2-3 C3 Model)
// ==========================================
// Bullish FVG created on bar[1], but Candle 3 (bar[1]) failed to close above Candle 2's high (bar[2]) -> Projects Bearish Reversal
c3_failed_bull = is_bull_fvg[1] and (close[1] <= high[2])
// Bearish FVG created on bar[1], but Candle 3 (bar[1]) failed to close below Candle 2's low (bar[2]) -> Projects Bullish Reversal
c3_failed_bear = is_bear_fvg[1] and (close[1] >= low[2])

long_reversal  = c3_failed_bear
short_reversal = c3_failed_bull

// ==========================================
// COMBINED SIGNALS
// ==========================================
long_signal  = false
short_signal = false

if (str_mode == "Continuation" or str_mode == "Both")
    long_signal  := long_signal or long_continuation
    short_signal := short_signal or short_continuation

if (str_mode == "Reversal" or str_mode == "Both")
    long_signal  := long_signal or long_reversal
    short_signal := short_signal or short_reversal

long_condition  = long_signal and in_session and strategy.position_size == 0
short_condition = short_signal and in_session and strategy.position_size == 0

// ==========================================
// ORDER EXECUTION & RISK MANAGEMENT
// ==========================================
var float entry_sl = na
var float entry_tp = na

if (long_condition)
    sl_dist = use_fixed_pts ? fixed_sl_pts : (atr_val * atr_mult)
    tp_dist = sl_dist * rr_ratio
    entry_sl := close - sl_dist
    entry_tp := close + tp_dist
    strategy.entry("Long BaseHit", strategy.long)
    strategy.exit("TP/SL Long", "Long BaseHit", stop=entry_sl, limit=entry_tp)

if (short_condition)
    sl_dist = use_fixed_pts ? fixed_sl_pts : (atr_val * atr_mult)
    tp_dist = sl_dist * rr_ratio
    entry_sl := close + sl_dist
    entry_tp := close - tp_dist
    strategy.entry("Short BaseHit", strategy.short)
    strategy.exit("TP/SL Short", "Short BaseHit", stop=entry_sl, limit=entry_tp)

// Plot FVG & Signals
plotshape(long_continuation and (str_mode != "Reversal"), title="Long Continuation", style=shape.triangleup, location=location.belowbar, color=color.green, size=size.small)
plotshape(short_continuation and (str_mode != "Reversal"), title="Short Continuation", style=shape.triangledown, location=location.abovebar, color=color.red, size=size.small)
plotshape(long_reversal and (str_mode != "Continuation"), title="Long Reversal", style=shape.circle, location=location.belowbar, color=color.teal, size=size.small)
plotshape(short_reversal and (str_mode != "Continuation"), title="Short Reversal", style=shape.circle, location=location.abovebar, color=color.orange, size=size.small)