Mr.Quyet hành trình triệu $$$

//version=5
indicator("RSI + MACD Combo", shorttitle="RSI_MACD", overlay=false)

// —— INPUTS ——
// RSI
rsiSrc = input.source(close, "RSI Source")
rsiLen = input.int(14, "RSI Length")
rsiOB = input.int(70, "RSI Overbought")
rsiOS = input.int(30, "RSI Oversold")
// MACD
macdSrc = input.source(close, "MACD Source")
fastLen = input.int(12, "MACD Fast Length")
slowLen = input.int(26, "MACD Slow Length")
signalLen = input.int(9, "MACD Signal Length")

// —— CALCULATIONS ——
// RSI
rsiValue = ta.rsi(rsiSrc, rsiLen)
// MACD
[macdLine, signalLine, histLine] = ta.macd(macdSrc, fastLen, slowLen, signalLen)

// —— PLOTTING ——
// RSI
p_rsi = plot(rsiValue, title="RSI", linewidth=2,
color = rsiValue > rsiOB ? color.red :
rsiValue < rsiOS ? color.green :
color.blue)
hline(rsiOB, "Overbought", color=color.red, linestyle=hline.style_dashed)
hline(rsiOS, "Oversold", color=color.green, linestyle=hline.style_dashed)
hline(50, "Middle", color=color.gray)

// MACD
plot(macdLine, title="MACD Line", color=color.blue, linewidth=1)
plot(signalLine,title="Signal Line", color=color.orange, linewidth=1)
plot(histLine, title="Histogram", style=plot.style_columns,
color = histLine >= 0 ? color.green : color.red)

// —— ALERT CONDITIONS ——
// Cảnh báo khi RSI chạm vùng quá mua/quá bán
alertcondition(cross(rsiValue, rsiOB), title="RSI Overbought", message="RSI đã vượt lên trên {{rsiOB}}")
alertcondition(cross(rsiValue, rsiOS), title="RSI Oversold", message="RSI đã xuống dưới {{rsiOS}}")
// Cảnh báo khi MACD line cắt Signal line
alertcondition(cross(macdLine, signalLine), title="MACD Cross", message="MACD Line vừa cắt Signal Line")

// —— SHOW VALUES ——
// Cho phép xem giá trị khi hover
plotshape(series=na, title="RSI value", text=str.tostring(rsiValue, format.percent), textcolor=color.white, location=location.top, style=shape.labelup, size=size.tiny)