menu

os.pullEvent = os.pullEventRaw
local w,h = term.getSize()

local function printCentered (y,s)

    local x = math.floor((w - string.len(s)) / 2)
    term.setCursorPos(x,y)
    term.clearLine()
    term.write(s)


local nOption = 1

local function drawMenu()
    term.clear()
    term.setCursorPos(1,1)
    term.write("MinerOS V1.0")
term.setCursorPos(1,2)

term.setCursorPos(w-11,1)
if nOption == 1 then
    term.write("Command Prompt")
elseif nOption == 2 then
    term.write("Applications")
elseif nOption == 3 then
    term.write("Power Options")
elseif nOption == 4 then
    term.write("File Viewer")
elseif nOption == 5 then
    term.write("Uninstall :(")
else
end

end

--GUI lol
term.setBackgroundColor(colors.orange)
term.clear()
local function drawFrontend()
    printCentered(math.floor(h/2) - 3, "")
    printCentered(math.floor(h/2) - 2, "Start Menu")
    printCentered(math.floor(h/2) - 1, "")
    printCentered(math.floor(h/2) + 0, ((nOption == 1) and "> Command Prompt <") or "Command Prompt")
    printCentered(math.floor(h/2) + 1, ((nOption == 2) and ">  Applications  <") or "Applications")
    printCentered(math.floor(h/2) + 2, ((nOption == 3) and ">  Power Options <") or "Power Options")
    printCentered(math.floor(h/2) + 3, ((nOption == 4) and ">  File Viewer   <") or "File Viewer")
    printCentered(math.floor(h/2) + 4, ((nOption == 5) and ">  Uninstall :(  <") or "Uninstall :(")
    printCentered(math.floor(h/2) + 5, "")
    end

    --Display uit please fghklfgnhmfgnhlkgfnl
    drawMenu()
    drawFrontEnd()

    while true do
        local e,p = os.pullEvent()
        if e == "keys" then
            local keys = p
            if keys == 17 or keys == 200 then

                if nOption > 1 then
                    nOption = nOption + 1
                    drawMenu()
                    drawFrontend()
                end
                elseif keys == 31 or keys == 209 then
                    if nOption < 5 then
                    nOption = nOption + 1
                    drawMenu()
                    drawFrontend()
                end
                elseif keys == 28 then

                break
                end
            end
        end
    term.clear()
    --Conditons
    if nOption == 1 then
        exit()
    elseif nOption == 2 then
        print("wait for next version!!11!!")
    elseif nOption == 3 then
        os.shutdown()
    elseif nOption == 4 then
        print("not eyt !!!@!@@2465234652436")
    else
        print("soon")
    end

end