// STRATEGY SETTINGS

// Backtest Range
FromYear  = input( defval = 2017, title = "Strategy from Year", type=integer, minval = 2011 )
FromMonth = input( defval = 04,   title = "... Month",          type=integer, minval = 1 )
FromDay   = input( defval = 01,   title = "... Day",            type=integer, minval = 1 )
ToYear    = input( defval = 2018, title = "Strategy to Year",   type=integer, minval = 2011 )
ToMonth   = input( defval = 03,   title = "... Month",          type=integer, minval = 1 )
ToDay     = input( defval = 31,   title = "... Day",            type=integer, minval = 1 )
isTimeRange = ( time > timestamp( FromYear, FromMonth, FromDay, 00, 00 ) ) and ( time < timestamp( ToYear, ToMonth, ToDay, 23, 59 ) )




// -----------------------------------------------------------------------------
// *****************************************************************************
//                                      STRATEGY


// ________________________
// ______ CONDITIONS ______

// Definition of strategy conditions
// NOTE: A "long trade" (i.e. buying to enter the market, then selling at a higher price to exit)
//       is called "Bull Trade".
//       Conversely, a "short trade" (i.e. selling to enter the market, then buying at a lower price to exit)
//       is called "Bear Trade".
//       The logic is always the same: "buy low, sell high" (whatever the order in time).


// BUY CONDITIONS
// Entry for a bull trade, exit for bear trade

// simple conditions for example, using long TF

// Look for a low above the lines (candle entirely out of the band)
priceOverNegStDev1 = crossover(low, longDevLineBelow1)    // Negative Standard Deviation (i.e. below the mean)
priceOverNegGolden = crossover(low, longDevLineBelow2)    // Negative Golden Deviation

// Trigger a bull signal when conditions are met
bullSignal = priceOverNegStDev1 or priceOverNegGolden


// SELL CONDITIONS
// Exit for bull, entry for bear

// simple conditions for example, using long TF

// Look for a high below the bands
priceOverPosStDev1 = crossunder(high, longDevLineAbove1)    // Positive Standard Deviation (i.e. above the mean)
priceOverPosGolden = crossunder(high, longDevLineAbove2)    // Positive Golden Deviation

// Trigger a bear signal when conditions are met
bearSignal = priceOverPosStDev1 or priceOverPosGolden



// ________________________
// ______ EXECUTION ______

// BULL TRADE
strategy.entry( "BULL", strategy.long, when=( bullSignal and isTimeRange ) )
strategy.close( "BULL",                when=( bearSignal and isTimeRange ) )

// BEAR TRADE
//strategy.entry( "BEAR", strategy.short, when=( bearSignal and isTimeRange ) )
//strategy.close( "BEAR",                 when=( bullSignal and isTimeRange ) )



//                                  End of STRATEGY
// *****************************************************************************
// -----------------------------------------------------------------------------