[RS]Khizon (DWTI) Strategy V0

//@version=2
strategy(title='[RS]Khizon (DWTI) Strategy V0', shorttitle='K', overlay=false, pyramiding=0, initial_capital=100000, currency=currency.USD)
trade_size = 10000
//  ||  Inputs:
macd_src = input(title='MACD Source:', type=source, defval=close)
macd_fast = input(title='MACD Fast Length:', type=integer, defval=12)
macd_slow = input(title='MACD Slow Length:', type=integer, defval=26)
macd_signal_smooth = input(title='MACD Signal Smoothing:', type=integer, defval=9)
srsi_src = input(title='SRSI Source:', type=source, defval=close)
srsi_rsi_length = input(title='SRSI RSI Length:', type=integer, defval=14)
srsi_stoch_length = input(title='SRSI Stoch Length:', type=integer, defval=14)
srsi_smooth = input(title='SRSI Smoothing:', type=integer, defval=14)
srsi_signal_smooth = input(title='SRSI Signal Smoothing:', type=integer, defval=14)
//  ||  MACD(close, 12, 26, 9):     ||---------------------------------------------||
f_macd_trigger(_src, _fast, _slow, _signal_smooth)=>
    _macd = ema(_src, _fast) - ema(_src, _slow)
    _signal = sma(_macd, _signal_smooth)
    _return_trigger = _macd >= _signal ? true : false
//  ||  Stoch RSI(close, 14, 14, 3, 3)  ||-----------------------------------------||
f_srsi_trigger(_src, _rsi_length, _stoch_length, _smooth, _signal_smooth)=>
    _rsi = rsi(_src, _rsi_length)
    _stoch = sma(stoch(_rsi, _rsi, _rsi, _stoch_length), _smooth)
    _signal = sma(_stoch, _signal_smooth)
    _return_trigger = _stoch >= _signal ? true : false
//  ||-----------------------------------------------------------------------------||
//  ||-----------------------------------------------------------------------------||
//  ||  Check Directional Bias from daily timeframe:
daily_trigger = security('USOIL', 'D', f_macd_trigger(macd_src, macd_fast, macd_slow, macd_signal_smooth) and f_srsi_trigger(srsi_src, srsi_rsi_length, srsi_stoch_length, srsi_smooth, srsi_signal_smooth))
h4_trigger = security('USOIL', '240', f_macd_trigger(macd_src, macd_fast, macd_slow, macd_signal_smooth) and f_srsi_trigger(srsi_src, srsi_rsi_length, srsi_stoch_length, srsi_smooth, srsi_signal_smooth))

plot(0, style=circles, color=daily_trigger?blue:na, linewidth=4, transp=65)
plot(0, style=circles, color=h4_trigger?navy:na, linewidth=2, transp=0)

sel_open = daily_trigger and h4_trigger
buy_open = not daily_trigger and not h4_trigger

strategy.entry('sel', long=false, qty=trade_size, comment='sel', when=sel_open)
strategy.entry('buy', long=true, qty=trade_size, comment='buy', when=buy_open)