startup

--Start timer and set timer
os.startTimer(1)
local t = 1
local w,h = term.getSize()
if w == 51 and h == 19 then
    pc = true
else
    pc = false
end

--Display
term.setBackgroundColor(colors.black)
term.clear()
paintutils.drawImage(paintutils.loadImage("bootscreen"), 1, 1)

if pc == true then
    term.setCursorPos(8,17)
    print("F12:BIOS SETUP")

    term.setCursorPos(27,17)
    print("DEL:Q-FLASH")
else
    term.setCursorPos(4,11)
    print("F12:BIOS SETUP")

    term.setCursorPos(19,11)
    print("DEL:Q-FLASH")
end

--Loop
while true do

    --Event
    local event, key = os.pullEvent()

    --Timer
    if event == "timer" then

        t = t - 1
        os.startTimer(1)

        if t < 0 then
            break
        end

    --Keys
    elseif event == "key" then

        if key == 211 then
            term.clear()
            term.setCursorPos(1,1)
            print("DEL:Q-FLASH")
            sleep(1)
            os.reboot()
        elseif key == 88 then
            term.clear()
            term.setCursorPos(1,1)
            print("F12:BIOS SETUP")
            sleep(1)
            os.reboot()
        end

    end

end

term.clear()
paintutils.drawImage(paintutils.loadImage("bootscreen"), 1, 1)
sleep(1)

--Boot loader
os.startTimer(1)
local t = 5

moved = false
selected = 1
if pc == true then
    options = 8
else
    options = 3
end

while true do

    --Menu
    if term.isColor() then
        term.setBackgroundColor(colors.blue)
    else
        term.setBackgroundColor(colors.gray)
    end

    term.clear()

    if pc == true then
        term.setCursorPos(17,2)
        term.write("Oculus bootloader")
    else
        term.setCursorPos(11,2)
        term.write("Oculus bootloader")
    end

    if pc == true then

        term.setCursorPos(4,6)
        term.write(" "..os.version())

        term.setCursorPos(4,7)
        term.write(" ".."OculusOS")

        term.setCursorPos(4,8)
        term.write(" ".."Startup")

    end

    if moved == true and pc == false then

        term.setCursorPos(4,6)
        term.write(" "..os.version())

        term.setCursorPos(4,7)
        term.write(" ".."OculusOS")

        term.setCursorPos(4,8)
        term.write(" ".."Startup")

    end

    if pc == true then

        term.setCursorPos(4,9)
        term.write(" ".."Disk1")

        term.setCursorPos(4,10)
        term.write(" ".."Disk2")

        if moved == true then
            term.setCursorPos(4,11)
            term.write(" ".."Disk3")
            term.setCursorPos(4,12)
            term.write(" ".."Disk4")
            term.setCursorPos(4,13)
            term.write(" ".."Disk5")
        end

    end

    if pc == true then
        term.setCursorPos(4,selected+5)
        term.write("*")
    end

    if pc == false and moved == true then
        term.setCursorPos(4,selected+5)
        term.write("*")
    end

    if moved == true then
        term.setCursorPos(3,17)
        term.write('Use the keys "UP" and "DOWN" to mark an entry,')
        term.setCursorPos(3,18)
        term.write('"ENTER" to boot of the marked operating system.')
    end

    if moved == false then
        term.setCursorPos(3,14)
        term.write('Use the keys "UP" and "DOWN" to mark an entry,')
        term.setCursorPos(3,15)
        term.write('"ENTER" to boot of the marked operating system.')
    end

    if moved == false and pc == false then
        term.setCursorPos(9,5)
        term.write('Use the keys "UP" and')
        term.setCursorPos(7,6)
        term.write('"DOWN" to mark an entry,')
        term.setCursorPos(8,7)
        term.write('"ENTER" to boot of the')
        term.setCursorPos(7,8)
        term.write('marked operating system.')
    end

    if moved == false then
        if pc == true then
            term.setCursorPos(6,17)
            term.write("The highlighted entry is automatically")
            term.setCursorPos(18,18)
            term.write("executed in "..t.."s.")
        else
            term.setCursorPos(7,11)
            term.write("The highlighted entry is")
            term.setCursorPos(5,12)
            term.write("automatically executed in "..t.."s.")
        end
    end

    if moved == false then
        if pc == true then
            paintutils.drawBox(2,4,50,12,colors.white)
        end
    else
        if pc == true then
            paintutils.drawBox(2,4,50,15,colors.white)
        else
            paintutils.drawBox(2,4,38,10,colors.white)
        end
    end

    --Event
    local event, key = os.pullEvent()

    --Timer
    if event == "timer" and moved == false then

        t = t - 1
        os.startTimer(1)

        if t < 0 then
            break
        end

    --Keys
    elseif event == "key" then

        if key == 200 then
            moved = true
            selected = selected -1
            if selected == 0 then
                selected = options
            end
        elseif key == 208 then
            moved = true
            selected = selected +1
            if options < selected then
                selected = 1
            end
        elseif key == 28 then
            break
        end
    end

end

function disk (disk,disk_name)
    selected = 0
    if not fs.exists("/"..disk) then
        term.setBackgroundColor(colors.black)
        term.clear()
        term.setCursorPos(1,1)
        if term.isColor() then
            term.setTextColor(colors.red)
        end
        term.write(disk_name.." not found starting: "..os.version())
        sleep(2)
    else
        if not fs.exists("/"..disk.."/boot") then
            term.setBackgroundColor(colors.black)
            term.clear()
            term.setCursorPos(1,1)
            if term.isColor() then
                term.setTextColor(colors.red)
            end
            term.write("Boot on "..disk_name.." not found starting: "..os.version())
            sleep(2)
        else
            term.setBackgroundColor(colors.black)
            term.clear()
            term.setCursorPos(1,1)
            shell.run("/"..disk.."/boot")
            term.clear()
            term.setCursorPos(1,1)
            if term.isColor() then
                term.setTextColor(colors.yellow)
            end
            sleep(2)
            term.write("Boot on "..disk_name.." done ore crashed starting: "..os.version())
            sleep(2)
        end
    end
end

if selected == 2 then
    term.setBackgroundColor(colors.black)
    term.clear()
    term.setCursorPos(1,1)
    if term.isColor() then
        term.setTextColor(colors.red)
    end
    term.write("OculusOS is not done starting: "..os.version())
    sleep(2)
elseif selected == 3 then
    if not fs.exists("boot") then
        term.setBackgroundColor(colors.black)
        term.clear()
        term.setCursorPos(1,1)
        if term.isColor() then
            term.setTextColor(colors.red)
        end
        term.write("Boot not found starting: "..os.version())
        sleep(2)
    else
        term.setBackgroundColor(colors.black)
        term.clear()
        term.setCursorPos(1,1)
        shell.run("boot")
        sleep(2)
        term.clear()
        term.setCursorPos(1,1)
        if term.isColor() then
            term.setTextColor(colors.yellow)
        end
        sleep(2)
        term.write("Boot done ore crashed: "..os.version())
        sleep(2)
    end
elseif selected == 4 then
    disk("disk","Disk1")
elseif selected == 5 then
    disk("disk2","Disk2")
elseif selected == 6 then
    disk("disk3","Disk3")
elseif selected == 7 then
    disk("disk4","Disk4")
elseif selected == 8 then
    disk("disk5","Disk5")
end

--CraftOS
term.setBackgroundColor(colors.black)
term.clear()
term.setCursorPos(1,1)
if term.isColor() then
    term.setTextColor(colors.yellow)
end
term.write(os.version())
term.setCursorPos(1,2)