//@version=4
strategy("Close Price Strategy", overlay=true)

var bool longCondition = false
var bool shortCondition = false

// Calculate the close price of the previous day
prevClose = security(syminfo.tickerid, "D", close[1])

// Check if the current close price is higher than the previous day's close price
buySignal = close > prevClose and time >= timestamp("2022-06-06") and time < timestamp("2023-06-07")

// Check if the current close price is lower than the previous day's close price
shortSignal = close < prevClose and time >= timestamp("2022-06-06") and time < timestamp("2023-06-07")

// Set long condition
if buySignal
    longCondition := true
else if close < prevClose
    longCondition := false

// Set short condition
if shortSignal
    shortCondition := true
else if close > prevClose
    shortCondition := false

// Buy signal condition
if longCondition
    if strategy.position_size <= 0
        strategy.entry("Buy", strategy.long)

// Short signal condition
if shortCondition
    if strategy.position_size >= 0
        strategy.entry("Short", strategy.short)