/*backtest
start: 2024-12-10 00:00:00
end: 2025-01-08 08:00:00
period: 1h
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5
strategy("EMA9_RSI_Strategy_LongShort", overlay=true)

// Parameters
fastLength = input.int(9, minval=1, title="Fast EMA Length")
slowLength = input.int(26, minval=1, title="Slow EMA Length")
rsiPeriod = input.int(14, minval=1, title="RSI Period")
rsiLevelLong = input.int(65, minval=1, title="RSI Level (Long)")
rsiLevelShort = input.int(35, minval=1, title="RSI Level (Short)")

// Define 1-hour timeframe
timeframe_1h = "60"

// Fetch 1-hour data
high_1h = request.security(syminfo.tickerid, timeframe_1h, high)
low_1h = request.security(syminfo.tickerid, timeframe_1h, low)
rsi_1h = request.security(syminfo.tickerid, timeframe_1h, ta.rsi(close, rsiPeriod))

// Current RSI
rsi = ta.rsi(close, rsiPeriod)

// Find highest/lowest price and corresponding RSI in the 1-hour timeframe
highestPrice_1h = ta.highest(high_1h, 1) // ราคาสูงสุดใน 1 ช่วงของ timeframe 1 ชั่วโมง
lowestPrice_1h = ta.lowest(low_1h, 1)   // ราคาต่ำสุดใน 1 ช่วงของ timeframe 1 ชั่วโมง
highestRsi_1h = ta.valuewhen(high_1h == highestPrice_1h, rsi_1h, 0)
lowestRsi_1h = ta.valuewhen(low_1h == lowestPrice_1h, rsi_1h, 0)

// Detect RSI Divergence for Long
bearishDivLong = high > highestPrice_1h and rsi < highestRsi_1h
bullishDivLong = low < lowestPrice_1h and rsi > lowestRsi_1h
divergenceLong = bearishDivLong or bullishDivLong

// Detect RSI Divergence for Short (switch to low price for divergence check)
bearishDivShort = low > lowestPrice_1h and rsi < lowestRsi_1h
bullishDivShort = high < highestPrice_1h and rsi > highestRsi_1h
divergenceShort = bearishDivShort or bullishDivShort

// Calculate EMA
emaFast = ta.ema(close, fastLength)
emaSlow = ta.ema(close, slowLength)

// Long Conditions
longCondition = emaFast > emaSlow and rsi > rsiLevelLong and not divergenceLong

// Short Conditions
shortCondition = emaFast < emaSlow and rsi < rsiLevelShort and not divergenceShort

// Plot conditions
plotshape(longCondition, title="Buy", location=location.belowbar, color=color.green, style=shape.labelup, text="Buy")
plotshape(shortCondition, title="Sell", location=location.abovebar, color=color.red, style=shape.labeldown, text="Sell")

// Execute the strategy
if (longCondition)
    strategy.entry("Long", strategy.long, comment="entry long")

if (shortCondition)
    strategy.entry("Short", strategy.short, comment="entry short")

// Alert
alertcondition(longCondition, title="Buy Signal", message="Buy signal triggered!")
alertcondition(shortCondition, title="Sell Signal", message="Sell signal triggered!")