instrument {
    name = 'OB 1.0',
    short_name = 'OB 1.0',
    overlay = true
}

EMA_PERIOD = input(3,"EMA Period",input.integer,1,1000,1)
CANDLE_VALUE = input(1,"Candle Value", input.string_selection,inputs.titles)

SMA_AUX_PERIOD = input(6,"SMA Aux Period",input.integer,1,1000,1)

input_group {
    "Compra",
    colorBuy = input { default = "green", type = input.color }, 
    visibleBuy = input { default = true, type = input.plot_visibility }
}

input_group {
    "Venda",
    colorSell = input { default = "red", type = input.color },
    visibleSell = input { default = true, type = input.plot_visibility }
}

local candleValue = inputs[CANDLE_VALUE]

-- Moving Average EMA
emaValue = ema(candleValue, EMA_PERIOD)
input_group {
    "front.middle line",
    middle_line_visible = input { default = true, type = input.plot_visibility },
    middle_line_color   = input { default = "orange", type = input.color },
    middle_line_width   = input { default = 1, type = input.line_width }
}

-- Moving Average SMA aux
smaValueAux = sma(candleValue, SMA_AUX_PERIOD)

plot (emaValue, "Middle", middle_line_color, middle_line_width)
plot(smaValueAux, "Middle", middle_line_color, middle_line_width)


BUY_CONDITION = conditional((emaValue > smaValueAux and emaValue > smaValueAux[1]) and  (emaValue[1] < smaValueAux and emaValue[1] < smaValueAux[1]))
SELL_CONDITION = conditional((emaValue < smaValueAux and emaValue < smaValueAux[1]) and (emaValue[1] > smaValueAux and emaValue[1] > smaValueAux[1])) 

            plot_shape(
                (BUY_CONDITION),
                "CALL",
                shape_style.triangleup,
                shape_size.auto,
                colorBuy,
                shape_location.belowbar,
                0,
                "COMPRA PARA 1 MINUTO",
                "green"
               ) 

          plot_shape(
              (SELL_CONDITION),
                "PUT",
                shape_style.triangledown,
                shape_size.auto,
                colorSell,
                shape_location.abovebar,
                0,
                "VENDA PARA 1 MINUTO",
                "red"
          )