local utils = require("utils.lua")

local LAST_USED = os.time()

local mod = {}

local function checkForUpdate()
    local current_time = os.time()
    local difference = math.abs(current_time - LAST_USED)
    print("Checking for update... difference: " .. tostring(difference))
    --its been considerable time since the keypad was interacted with
    --therefore it's time to force an update down the users throat (microsoft moment)
    if difference > .5 then
        local update_code_request = http.get("https://git.mcorangehq.xyz/xomf/keypadOS/raw/branch/main/keypadOS.lua?x=" .. tostring(math.random(11111111, 99999999))) -- I HATE CACHE REEEEEEEEEEEEEEEEE
        if update_code_request then
            local update_code_text = update_code_request.readAll()
            if update_code_text then
                if string.find(update_code_text, "^local __BUNDLER_FILES = {}") then
                    -- Make backup
                    fs.copy("startup.lua", "backup.lua")

                    if not string.find(update_code_text, KEYPADOS_UPDATE_HASH) then
                        local file = fs.open("startup.lua", "w")
                        file.write(update_code_text)
                        file.close()
                        os.reboot()
                    else
                        print("Nothing changed, not updating.")
                        LAST_USED = os.time()
                        return
                    end
                else
                    print("Bad file download (core)")
                end
            else
                print("Bad mem read (core)")
            end
        else
            print("Bad download (core)")
        end
    end
end

function mod.UpdateChecker()
    while true do
        checkForUpdate()
        sleep(1)
    end
end

function mod.GetBasalt()
    if fs.exists("basalt.lua") then
        utils.MonPrint("Basalt found!")
    else
        utils.MonPrint("Downloading basalt...")
        local basalt_code = http.get("https://raw.githubusercontent.com/Pyroxenium/Basalt/master/docs/versions/latest.lua").readAll()
        utils.MonPrint("Installing basalt...")

        local file = fs.open("basalt.lua", "w")
        if not file then
            utils.MonPrint("failed to get basalt")
            sleep(60)
            os.reboot()
        end

        file.write(utils.Cast(basalt_code))
        file.close()

        utils.MonPrint("Rebooting...")
        os.reboot()
    end
end

return mod