//@version=4
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © EduardoMattje

study("Highs and lows", "HnL", true)

// Inputs

i_displayLimit = input(0, "Display limit", minval=0, tooltip="Keep this at 0 if you want to display all values.\nChange it to hide past values, up until the specified number.")

// Variable

getHigh(resolution) => security(syminfo.tickerid, resolution, high[1], lookahead=barmerge.lookahead_on)
getLow(resolution) => security(syminfo.tickerid, resolution, low[1], lookahead=barmerge.lookahead_on)

yesterdayHigh = getHigh("D")
yesterdayLow = getLow("D")

weekHigh = getHigh("W")
weekLow = getLow("W")

monthHigh = getHigh("M")
monthLow = getLow("M")

// Plots

plot(yesterdayHigh, "Yesterday's high", color.teal, style=plot.style_stepline, show_last=i_displayLimit)
plot(yesterdayLow, "Yesterday's low", color.red, style=plot.style_stepline, show_last=i_displayLimit)

plot(weekHigh, "Last week's high", color.teal, 2, plot.style_stepline, show_last=i_displayLimit)
plot(weekLow, "Last week's low", color.red, 2, plot.style_stepline, show_last=i_displayLimit)

plot(monthHigh, "Last month's high", color.teal, 4, plot.style_stepline, show_last=i_displayLimit)
plot(monthLow, "Last month's low", color.red, 4, plot.style_stepline, show_last=i_displayLimit)