install

os.pullEvent = os.pullEventRaw

local w,h = term.getSize()

local hasDisk
local id

term.clear()

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

printCentered( math.floor(h/2) - 2, "Insert Disk")
printCentered( math.floor(h/2) - 0, "Press ENTER to exit")

local function DiskCheck(  )
    while true do
        if disk.hasData("left") or disk.hasData("right") or disk.hasData("top") or disk.hasData("back") or disk.hasData("bottom") or disk.hasData("front") then
            hasDisk = true
            break
        end

        sleep(0)
    end
end

local function MayExit(  )
    while true do
        local event, key = os.pullEvent("key")
        if event == "key" and hasDisk ~= true then
            if keys.getName(key) == "enter" then
                break
            end
        end
        sleep(0)
    end
    shell.run("/bin/main")
end

local function Install(  )
    if fs.exists("/disk/install.lua") then
        id = multishell.launch({}, "/disk/install.lua")
        multishell.setTitle(id, "Installation")
        while true do
            if multishell.getCount() <= 1 then
                shell.run("main")
            end
            sleep(0)
        end
    else
        shell.run("BSOD", "\"[DO:0001] No or corrupted file\"")
    end
end

parallel.waitForAny(DiskCheck, MayExit)
Install()