--BR control by Graypup
--Legalese below
--[[
            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. You just DO WHAT THE FUCK YOU WANT TO.

]]
local term = require("term")
local component = require("component")
local unicode = require("unicode")
local event = require("event")

local br = component.br_reactor
local gpu = component.gpu

--Constants:
local cpromsg = "Currently producing: "
local fueltempmsg = "Current fuel temperature: "
local casetempmsg = "Current casing temperature: "
local estoragemsg = "Energy Stored: "

local ff = true
local lastOot
local lastActive
local resX, resY = gpu.getResolution()

local function round(num, idp)
  local mult = 10^(idp or 0)
  return math.floor(num * mult + 0.5) / mult
end
local function dotZero(num)
	if num % 1 == 0 then
		return num .. ".0"
	else
		return num
	end
end
local function printCentered(thing)
	local _,y = term.getCursor()
	local w = gpu.getResolution()
	term.setCursor((w-thing:len())/2, y)
end
local function printEnergyStorageBar()
	local outOfTen = round(br.getEnergyStored() / 10000000 * 10)
	local x,y = estoragemsg:len()+1, 5
	if outOfTen ~= lastOot then
		local b, bp = gpu.getBackground()
		gpu.setBackground(0x00FF00)
		gpu.fill(x, y, outOfTen, 1, " ")
		if 10-outOfTen > 0 then
			gpu.setBackground(0xFF0000)
			gpu.fill(x+outOfTen, y, 10-outOfTen, 1, " ")
		end
		gpu.setBackground(b,bp)
	end
end
local function printActive()
	isActive = br.getActive()
	if isActive ~= lastActive then
		local f, fb = gpu.getForeground()
		if isActive then
			gpu.fill(1, 1, resX, 1, " ")
			gpu.setForeground(0x00FF00)
			gpu.set(1, 1, "Online")
		else
			gpu.fill(1, 1, resX, 1, " ")
			gpu.setForeground(0xFF0000)
			gpu.set(1, 1, "Offline")
		end
		gpu.setForeground(f,fb)
	end
	lastActive = isActive
end
local function redraw()
	printActive()
	gpu.set(cpromsg:len()+1, 2, dotZero(tonumber(string.format("%.1f", br.getEnergyProducedLastTick()/1000))) .. " KiRF/t     ")
	gpu.set(fueltempmsg:len()+1, 3, dotZero(tonumber(string.format("%.1f", br.getFuelTemperature()))) .. unicode.char(0x00b0) .. "C     ")
	gpu.set(casetempmsg:len()+1, 4, dotZero(tonumber(string.format("%.1f", br.getCasingTemperature()))) .. unicode.char(0x00b0) .. "C      ")
	printEnergyStorageBar()
end
local function reactorControl()
	br.setAllControlRodLevels(br.getEnergyStored() / 10000000 * 100)
end
term.clear()
gpu.set(1, 2, cpromsg)
gpu.set(1, 3, fueltempmsg)
gpu.set(1, 4, casetempmsg)
gpu.set(1, 5, estoragemsg)
--Get the painting and control running
event.timer(0.4, reactorControl, math.huge)
event.timer(0.8, redraw, math.huge)
while true do
	local _, _, char = event.pull("key_down")
	if unicode.char(char) == " " then
		stateToSet = not br.getActive()
		br.setActive(stateToSet)
		printActive()
	end
end