TCI (TimeZonesIndicator)

//@version=5
indicator("TCI (TimeZonesIndicator)", overlay=true)

// Created By Julian.Grasboeck
//
// This indicator shows when the wake up times for Europe,
// Asia and USA are, considering wake up time as 07:00 - 10:00
// and considering 09:00 - 10:00 as opening time of the stock exchanges
//
// Thanks to:
//      https://www.tradingview.com/u/jatubio/
//      https://www.tradingview.com/script/LJVBldlJ-Cryptocurrencies-World-Sessions/
//		https://www.tradingcode.net/tradingview/background/colour-background-sessions/
//		https://www.tradingview.com/script/It2bVD8e-Forex-Session-Overlap/
//
// 05/10/2022
//
//
//  ||-----------------------------------------------------------------------------------------------------||
//  ||------------------                         Common                               ---------------||

// === INPUTS ===
transpWakeUp = input.int(title="Wake Up Time Transparency", defval=80)
transpOpening = input.int(title="Opening Time Transparency", defval=50)

// Constants for colours
//transpWakeUp = 80
//transpOpening = 50
naColour = #4169E1      // royal blue
euColour = #FF6347      // tomato
cnColour = #3CB371      // medium sea green
//jpColour = #ff9900        // orange
auColour = #ffff00      // yellow

baseAwakeTime = "0700-1000"
baseWakeUpTime = "0700-0900"
baseOpeningTime = "0900-1000"
naTimeRangeStr = "America/New_York"
euTimeRangeStr = "Europe/London"
cnTimeRangeStr = "Asia/Hong_Kong"
//jpTimeRangeStr = "Asia/Tokyo"
auTimeRangeStr = "Australia/Sydney"

isRegionActive(timeRangeStr) => (na(time(timeframe.period, baseAwakeTime, timeRangeStr)) == false) and timeframe.isintraday and not(timeframe.isseconds)
isRegionWakingUp(timeRangeStr) => (na(time(timeframe.period, baseWakeUpTime, timeRangeStr)) == false) and timeframe.isintraday
isRegionOpening(timeRangeStr) => (na(time(timeframe.period, baseOpeningTime, timeRangeStr)) == false) and timeframe.isintraday

// Colour the background
bgcolor(color=isRegionActive(naTimeRangeStr) ? color.new(naColour, isRegionOpening(naTimeRangeStr) ? transpOpening : transpWakeUp) : na, title="North America", offset=24*(60/timeframe.multiplier))
bgcolor(color=isRegionActive(euTimeRangeStr) ? color.new(euColour, isRegionOpening(euTimeRangeStr) ? transpOpening : transpWakeUp) : na, title="Europe", offset=24*(60/timeframe.multiplier))
bgcolor(color=isRegionActive(cnTimeRangeStr) ? color.new(cnColour, isRegionOpening(cnTimeRangeStr) ? transpOpening : transpWakeUp) : na, title="Asia", offset=24*(60/timeframe.multiplier))
//bgcolor(color=isRegionActive(jpTimeRangeStr) ? color.new(jpColour, isRegionOpening(jpTimeRangeStr) ? transpOpening : transpWakeUp) : na, title="Japan", offset=24*(60/timeframe.multiplier))
bgcolor(color=isRegionActive(auTimeRangeStr) ? color.new(auColour, isRegionOpening(auTimeRangeStr) ? transpOpening : transpWakeUp) : na, title="Australia", offset=24*(60/timeframe.multiplier))