-- essentia reader computer FSM--

os.loadAPI("button")
os.loadAPI("melStart")

m = peripheral.find("monitor")
p = peripheral.find("EssentiaProvider")

local x,y,z,v
local n,a
local colorsToUse = {colors.green,colors.blue,colors.brown}
local colorTracker, collumnTracker, rowTracker
local rowOffset, collumnOffset, collumnOffset2, rowLimit, collumnLimit

--Set up some important 'local' globals (srsly lua?)
collumnOffset = 18
collumnOffset2 = 13		--Used for variable
rowOffset = 1
collumnLimit = 3
rowLimit = 13


n = -1
a = 0
x = 1
y = 0
z = y
lineblank = ""
aspectNum = 48

function aspectTable()
  
  eTable = {p.getAspects()}
    
end

function aspectDis()
  
  --Reset trackers
  colorTracker = 0
  collumnTracker = 0
  rowTracker = 0
  
  --Do out first setup
  --m.setTextColor(colorsToUse[colorTracker])
  
  for i=1,96,2 do
	--Check if the table value is not nil
	if(eTable[i] == nil) then break end
	--Position the cursor
	m.setCursorPos(1+(collumnOffset*collumnTracker), 1+(rowOffset*rowTracker))
	m.write(eTable[i])
	m.setCursorPos(collumnOffset2+(collumnOffset*collumnTracker), 1+(rowOffset*rowTracker))
	m.write(":" .. eTable[i+1])
	--Bump down a row
	rowTracker = rowTracker + 1
	--If rowTracker is equal to rowLimit,
	--reset and bump collumnTracker
	if(rowTracker == rowLimit) then
		rowTracker = 0
		collumnTracker = collumnTracker + 1
		--Also set the colorTracker
		colorTracker = colorTracker + 10
		--m.setTextColor(colorsToUse[colorTracker])
	end
  end
end

function clearLine()
  throwaway,line = m.getCursorPos()
  m.write(lineblank)
  m.setCursorPos(1,line)
end

melStart.startup()

termx,termy = m.getSize()
for i = 1,termy do
  lineblank = lineblank.." "
end

m.setBackgroundColor(colors.purple)
m.setTextColor(colors.black)
m.setTextScale(1.5)

while true do
  m.clear()
  aspectTable()
  aspectDis()
  sleep(1)

end