os.loadAPI('itw-core/texthelp')
os.loadAPI('itw-core/tracker')
os.loadAPI('itw-core/content')

local function updateText(station)
	if station.state == true then
		if station.data.videoLink then
			print('video link found')
			local loc = "x="..station.x..",y="..station.y..",z="..station.z
			commands.tellraw('@a[r=10,'..loc..']','["",{"text":"Press T and "},{"text":"click here","underlined":true,"color":"aqua","clickEvent":{"action":"open_url","value":"'..station.data.videoLink..'"}},{"text":" to watch a video"}]')
		end
		texthelp.printToScreen(station.monitor,station.data.onText,station.w-2,station.data.onKeys,2,2)
	else
		texthelp.printToScreen(station.monitor,station.data.offText,station.w-2,station.data.offKeys,2,2)
	end
end

function init()
	local station = {}
	station.monitor = peripheral.wrap('left') or peripheral.wrap('right')
	station.monitor.setTextScale(2)
	station.w,station.h = station.monitor.getSize()
	station.state = false
	station.data = {
		onText = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla eros nisl, rhoncus sed ex vitae, fermentum finibus metus. Aliquam iaculis risus ut orci venenatis auctor. Pellentesque non odio in purus egestas mattis in at neque.",
		onKeys = {
			{word="nisl",color="red"},
			{word="finibus",color="blue"},
			{word="risus",color="green"}
		},
		offText = "DEFAULT PROVIDER /n /n This is a text provider. You can read the hidden text by standing on the diamond block.",
		offKeys = {
			{word='diamond',color='lightBlue'},
			{word='hidden',color='magenta'},
			{word='standing',color='green'}
		}
	}
	station.x,station.y,station.z = commands.getBlockPosition()
	stationFromContent = tracker.findClosestStation(station.x,station.y,station.z)
	if stationFromContent then station.data = stationFromContent.data end
	return station
end

local timer = 0
function updateStation(station)
	updateText(station)
	while true do
		local signal = redstone.getInput("back")
		if not signal == station.state then
			station.state = signal
			updateText(station)
		end
		if station.state and timer>10 then
			timer = 0
			updateText(station)
		end
		timer = timer +1
		sleep(1)
	end
end