Get Opening range breakout strategy Code That Actually Works

//@version=5
indicator("Opening Range Breakout (ORB)", shorttitle="ORB", overlay=true, max_lines_count=500)

// Inputs
orb_minutes = input.int(30, "ORB Period (minutes)", minval=1, maxval=240)
show_orb_lines = input.bool(true, "Show ORB Lines")
extend_lines = input.bool(true, "Extend Lines")
line_width = input.int(2, "Line Width", minval=1, maxval=5)
orb_high_color = input.color(color.red, "ORB High Color")
orb_low_color = input.color(color.green, "ORB Low Color")
breakout_up_color = input.color(color.lime, "Breakout Up Color")
breakout_down_color = input.color(color.orange, "Breakout Down Color")

// Session input (default US equities 9:30-16:00)
session_time = input.session("0930-1600", "Trading Session")

// Helper: in session?
in_session = not na(time(timeframe.period, session_time))

// New session start
new_session = in_session and not in_session[1]

// ORB vars
var float orb_high = na
var float orb_low = na
var int64 orb_end_time = na
var line orb_high_line = na
var line orb_low_line = na

// Init on new session
if new_session
    orb_high := high
    orb_low := low
    orb_end_time := time + int(orb_minutes * 60 * 1000)

// Update OR during period
if not na(orb_end_time) and time < orb_end_time and in_session
    orb_high := math.max(orb_high, high)
    orb_low := math.min(orb_low, low)

// ORB complete
orb_completed = not na(orb_end_time) and time >= orb_end_time

// Draw lines on completion
if orb_completed and show_orb_lines and na(orb_high_line)
    orb_high_line := line.new(bar_index[1], orb_high, bar_index + 20, orb_high, color=orb_high_color, width=line_width, extend=extend_lines ? extend.right : extend.none)
    orb_low_line := line.new(bar_index[1], orb_low, bar_index + 20, orb_low, color=orb_low_color, width=line_width, extend=extend_lines ? extend.right : extend.none)

// Breakouts (post-ORB)
bull_breakout = orb_completed[1] and ta.crossover(close, orb_high[1])
bear_breakout = orb_completed[1] and ta.crossunder(close, orb_low[1])

// Plots
plot(orb_completed ? orb_high : na, "ORB High", orb_high_color, 2)
plot(orb_completed ? orb_low : na, "ORB Low", orb_low_color, 2)
plotshape(bull_breakout, "Bull BO", shape.triangleup, location.belowbar, breakout_up_color, size=size.small)
plotshape(bear_breakout, "Bear BO", shape.triangledown, location.abovebar, breakout_down_color, size=size.small)

// Background
bgcolor(bull_breakout ? color.new(breakout_up_color, 90) : na, title="Bull BG")
bgcolor(bear_breakout ? color.new(breakout_down_color, 90) : na, title="Bear BG")

// Alerts
alertcondition(bull_breakout, "ORB Bull Breakout", "Price broke above opening range high!")
alertcondition(bear_breakout, "ORB Bear Breakout", "Price broke below opening range low!")