charl macd ema rsi
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © mbuthiacharles4

//Good with trending markets
//@version=4
strategy("CHARL MACD EMA RSI")

fast = 12, slow = 26
fastMA = ema(close, fast)
slowMA = ema(close, slow)
macd = fastMA - slowMA
signal = sma(macd, 9)

ema = ema(close, input(200))

rsi = rsi(close, input(14))
//when delta > 0  and close above ema buy

delta = macd - signal

buy_entry= close>ema and delta > 0
sell_entry = close<ema and delta<0 
var bought = false
var sold = false
var reversal = false
if (buy_entry and bought == false and rsi <= 70) 
    strategy.entry("Buy",true , when=buy_entry)
    bought := true
    
strategy.close("Buy",when= delta<0 or rsi > 70)
if (delta<0 and bought==true)
    bought := false

//handle sells

if (sell_entry and sold == false and rsi >= 30)
    strategy.entry("Sell",false , when=sell_entry)
    sold := true

strategy.close("Sell",when= delta>0 or rsi < 30)
if (delta>0 and sold==true)
    sold := false
    
if (rsi > 70 or rsi < 30)
    reversal := true
    placing = rsi > 70 ? high :low
    label.new(bar_index, placing, style=label.style_flag, color=color.blue, size=size.tiny)
if (reversal == true)
    if (rsi < 70 and sold == false and delta < 0)
        strategy.entry("Sell",false , when= delta < 0)
        sold := true
        reversal := false
    else if (rsi > 30 and bought == false and delta > 0)
        strategy.entry("Buy",true , when= delta > 0)
        bought := true
        reversal := false

