SkyOS Installer

-- Get width and height
local w, h = term.getSize()
mY = 8
-- Clear screen
term.clear()

-- Function for printing in center of screen

function cPrint(msg, y)
  term.setCursorPos(math.floor((w-#msg)/2) + (#msg % 2 == 0 and 1 or 0), y or h/2)
  print(msg)
end

function cWrite(msg, y)
  term.setCursorPos(math.floor((w-#msg)/2) + (#msg % 2 == 0 and 1 or 0), y or h/2)
  term.write(msg)
end

-- Check if computer is advanced

if not term.isColor() then
    error("Sorry, we only support advanced computers")
end

-- Check if HTTP is enabled

if not http.get("http://example.com/", headers) then
    error("HTTP API not enabled. Please enable this to install")
end

    term.setBackgroundColor(2048)
    term.setTextColor(1)
    term.clear()
    cPrint("Welcome!", 2)
    cPrint("We see this is the first time you run SkyOS.", 4)
    cPrint("Choose what you would like to do below: ", 6)
    cPrint("[Install]", mY)
    cPrint("Exit", 10)


function installFile(url, filename)
    local file = fs.open(filename, 'w')
    file.write(http.get(url).readAll())
    file.close()
end

function install()
    term.clear()
    cPrint("Installing. Step [1/2]", 2)
    cWrite("What's your name? ", 4)
    local name = read()
    cPrint("Welcome "..name.."!",6)
    cWrite("What would you like your password to be? ", 8)
    local pass = read('*')
    if not fs.exists("users") then
        fs.makeDir("users")
    end
    if not fs.exists("users/"..name) then
        local file = fs.open("users/"..name, "a")
        file.writeLine(pass)
        file.close()
    end
    cWrite("What would you like to name your computer? ", 10)
    local cName = read()
    os.setComputerLabel(cName)
    cPrint("Your computers name is now "..cName.."!", 12)
    sleep(1)

    term.clear()
    cPrint("Installing. Step [2/2]", 2)
    cPrint("Downloading files...", 4)
    cPrint("Getting files!", 6)
    installFile("https://raw.githubusercontent.com/Mackan90096/skyos/master/startup", "startup")
    installFile("https://raw.githubusercontent.com/Mackan90096/skyos/master/api/text", "api/text")
    installFile("https://raw.githubusercontent.com/Mackan90096/skyos/master/programs/pasteget", "programs/pasteget")
    installFile("https://raw.githubusercontent.com/Mackan90096/skyos/master/programs/edit", "programs/edit")
    cPrint("Done! Computer will now reboot", 8)
    sleep(1)
    os.reboot()
end

while true do
    e, p1, p2, p3 = os.pullEvent()
    if e == "key" then
        if p1 == 208 then
            if mY == 8 then
                term.setCursorPos(1, mY)
                term.clearLine()
                cPrint("Install", mY)
                mY = 10
                term.setCursorPos(1, mY)
                term.clearLine()
                cPrint("[Exit]", mY)
            elseif mY == 10 then
                term.setCursorPos(1, mY)
                term.clearLine()
                cPrint("Exit", mY)
                mY = 8
                term.setCursorPos(1, mY)
                term.clearLine()
                cPrint("[Install]", mY)
            end
        elseif p1 == 200 then
            if mY == 10 then
                term.setCursorPos(1, mY)
                term.clearLine()
                cPrint("Exit", mY)
                mY = 8
                term.setCursorPos(1, mY)
                term.clearLine()
                cPrint("[Install]", mY)
            elseif mY == 8 then
                term.setCursorPos(1, mY)
                term.clearLine()
                cPrint("Install", mY)
                mY = 10
                term.setCursorPos(1, mY)
                term.clearLine()
                cPrint("[Exit]", mY)
            end
        elseif p1 == 28 then
            if mY == 10 then
                os.reboot()
            elseif mY == 8 then
                install()
            end
        end
    end
end