AppleScript which reloads a Whole Foods delivery confirmation page and displays a notification when time slots are available or it otherwise needs attention (e.g. because an item has become unavailable)

Whole Foods delivery watcher.scpt

tell application "Safari"
	repeat
		repeat with theWindow in every window
			repeat with theTab in every tab of theWindow
				if name of theTab contains "Reserve a Time Slot" then
					set checkoutWindow to theWindow
					set checkoutTab to theTab
				end if
			end repeat
		end repeat
		tell checkoutTab
			set URL to URL
			delay 10
			if text of checkoutTab does not contain "No delivery windows available" then
				display notification "Amazon needs your attention!" sound name "Sosumi"
				set current tab of checkoutWindow to checkoutTab
				set index of checkoutWindow to 1
			end if
		end tell
		delay 90
	end repeat
end tell