DateTimeSpawn

local mon   -- table : peripheral, monitor
local width -- int : width of the monitor

--- INIT ---
local function loadAPIs()
    if not fs.exists("lib/datetime") then
        error("[lib/datetime] file not found.")
    end
    os.loadAPI("lib/datetime")
    datetime.init()
end

local function init()
    mon = peripheral.find("monitor")
    if mon == nil then
        error("Monitor peripheral not found.")
    end
    width,_ = mon.getSize()
    mon.clear()
    mon.setTextScale(2)
end

--- UTILS ---
local function writeCenter(str, width, y, color)
    if color then
        mon.setTextColor(color)
    end
    local x =  (width - string.len(str) + 1) / 2
    mon.setCursorPos(x, y)
    mon.write(str)
end

--- FUNCTIONS ---
local function displayTime()
    local infos = datetime.getDatetime2()
    if infos then
        mon.clear()
        writeCenter(string.upper(infos["dayOfWeek"]), width, 1, colors.blue)
        writeCenter(infos["day"] .. "/" .. infos["month"] .. "/" .. infos["day"], width, 3, colors.blue)
        writeCenter(infos["hour"] .. ":" .. infos["min"], width, 5, colors.blue)

        if string.upper(infos["dayOfWeek"]) == "DIMANCHE" and tonumber(infos["hour"]) >= 20 then
            writeCenter("RESET", width, 2, colors.red)
            writeCenter("BIENTOT", width, 4, colors.red)
        end
    end
end

--- MAIN CALL ---
local function main()
    loadAPIs()
    init()
    while true do
        displayTime()
        sleep(1)
    end
end

main()