local GITHUB_USER = "SuperMcBrent"
local GITHUB_REPO = "cc-lua-os"
local GITHUB_BRANCH = "main"
local BASE_URL = "https://raw.githubusercontent.com/"..GITHUB_USER.."/"..GITHUB_REPO.."/"..GITHUB_BRANCH
local STARTUP_URL = BASE_URL.."/startup.lua"
local STARTUP_FILE = "startup.lua"
local BACKUP_FILE = STARTUP_FILE..".bak"

print("Fetching latest startup.lua...")

local ok, res = pcall(http.get, STARTUP_URL)
if not ok or not res then
    print("Failed to connect to GitHub.")
    return
end

local data = res.readAll()
res.close()

if not data or #data == 0 then
    print("Downloaded file is empty or missing!")
    return
end

if fs.exists(BACKUP_FILE) then
    fs.delete(BACKUP_FILE)
end

if fs.exists(STARTUP_FILE) then
    fs.move(STARTUP_FILE, BACKUP_FILE)
    print("Old startup.lua backed up as startup.lua.bak")
end

local f = fs.open(STARTUP_FILE, "w")
f.write(data)
f.close()

print("startup.lua updated successfully!")
print("Rebooting in 2 seconds...")

sleep(2)
os.reboot()