screen_graph

-- Init program
rednetSide = "top"
m = peripheral.wrap("back")
idSensorPC = 19

mfsuList = {}

mfsuOffset = 0
td = true
tick = 0
titre = "MFSU VISUALIZER"

lavaButton = false

function horizontalLine(i, j)
    m.setCursorPos(i, j)
    if i > 1 and i < 36 then
        m.write("-")
    else
        m.write("+")
    end
end

function drawCadre()
    m.setBackgroundColor(colors.black)
    m.setTextColor(colors.white)
    m.clear()

    for i = 2, 35 do
        m.setCursorPos(1, i)
        m.write("|")
        m.setCursorPos(36, i)
        m.write("|")
    end

    for i = 1, 36 do
        horizontalLine(i,  1)
        horizontalLine(i,  3)
        horizontalLine(i, 16)
        horizontalLine(i, 20)
    end
end

function drawInterface()
    milieu = (36 / 2) - (string.len(titre) / 2) + 1
    m.setCursorPos(milieu, 2)
    m.setTextColor(colors.yellow)
    m.write(titre)
    m.setTextColor(colors.white)
end

function drawEnergy()
    if mfsuList ~= nil and type(mfsuList) == "table" then
        if mfsuOffset < (#mfsuList) and #mfsuList > 0 then
            for i = mfsuOffset, (mfsuOffset + 1) do
                lenght = (mfsuList[i]["p"] / 100) * 28

                cl = colors.red
                if lenght < 4 then
                    cl = colors.red
                elseif lenght < 21 then
                    cl = colors.orange
                elseif lenght > 20 then
                    cl = colors.lime
                end

                y = (i - mfsuOffset) * 5

                percent = ""..mfsuList[i]["p"].."%"
    numId = i + 1
    num = " "..numId

                drawBar(2, lenght + 2, y + 5, y + 8, num, percent, cl)
            end
        end
    end
end

function drawBar(offset, limite, ymin, ymax, n, msg, couleur)
    for i = ymin, ymax do
        for j = offset, limite do
            m.setCursorPos(j, i)
            m.setBackgroundColor(couleur)
            m.write(" ")
        end
    end
    m.setBackgroundColor(colors.black)
 m.setCursorPos(36 - string.len(n) - 1, ymin)
 m.write(n)
    m.setCursorPos(36 - string.len(msg) - 1, ymin + 1)
    m.write(msg)
end

rednet.open(rednetSide)
while true do
    event, id, msg, d = os.pullEvent()

 if tick >= 3 then
  tick = 0
  if td then
   if (mfsuOffset + 1) == #mfsuList then
    td = false
   else
    mfsuOffset = mfsuOffset + 1
   end
  else
   if mfsuOffset == 0 then
    td = true
    else
     mfsuOffset = mfsuOffset - 1
   end
  end
 else
  tick = tick + 1
 end

    if event == "monitor_touch" then
        print(msg)
        print(d)

  message = {}

  if msg > 1 and msg < 8 and d > 16 and d < 20 then
   if lavaButton then
    lavaButton = false
    message["button"] = "off_lava"
   else
    lavaButton = true
    message["button"] = "on_lava"
   end
  end

  r = ""

  while r ~= "ok" do
   rednet.send(idSensorPC, textutils.serialize(message))
   id, r, d = rednet.receive(0.5)
  end
 end

    if event == "rednet_message" then
        if id ~= nil and id == idSensorPC then
            if msg ~= nil then
                mfsuList = textutils.unserialize(msg)
            end
        end
    end

    m.setTextScale(2)
    drawCadre()
    drawInterface()
    drawEnergy()

 if lavaButton then
  m.setBackgroundColor(colors.lime)
 else
  m.setBackgroundColor(colors.red)
 end
 m.setTextColor(colors.white)

 for i = 2, 7 do
   for j = 17, 19 do
     m.setCursorPos(i, j)
     m.write(" ")
   end
 end
 m.setCursorPos(2, 18)
 m.write(" LAVE ")

end