ComputerCraft Clock (NOT MINE)

-- Clock with Date for display on a monitor
-- Author: CecilKilmer (modified by ChatGPT)
-- Version: 1.1
-- Date: 2023/08/16

-- Min width required (IE: 10:00 PM)
minWidthReq = 12
minHeightReq = 4

-- Figure out where our monitor is
monitorSide = nil
monitor = nil

if peripheral.getType("left") == "monitor" then
    monitorSide = "left"
elseif peripheral.getType("right") == "monitor" then
    monitorSide = "right"
elseif peripheral.getType("top") == "monitor" then
    monitorSide = "top"
elseif peripheral.getType("bottom") == "monitor" then
    monitorSide = "bottom"
elseif peripheral.getType("front") == "monitor" then
    monitorSide = "front"
elseif peripheral.getType("back") == "monitor" then
    monitorSide = "back"
end

screenWidth = 0
screenHeight = 0

-- If we have one, redirect term to it
if monitorSide ~= nil then
    monitor = peripheral.wrap(monitorSide)
    term.redirect(monitor)

    local scale = 5.5

    repeat
        scale = scale - 0.5
        monitor.setTextScale(scale)
        screenWidth, screenHeight = term.getSize()
    until screenWidth > minWidthReq and screenHeight > minHeightReq
end

-- Determine our screen size
screenWidth, screenHeight = term.getSize()
yPos = screenHeight - minHeightReq
yPos = math.floor(yPos / 2)

-- Helper functions for Minecraft time conversion
function getMinecraftDateTime()
    local time = os.time()

    -- Minecraft day count (assuming each day is 24000 ticks)
    local day = math.floor(time / 24000) + 1

    -- Extract year, month, and day
    local year = math.floor(day / 360) + 1  -- assuming 360 days per year
    local month = math.floor((day % 360) / 30) + 1  -- assuming 30 days per month
    local dayOfMonth = (day % 360) % 30 + 1

    -- Format time and date
    local formattedTime = textutils.formatTime(time, false)
    local formattedDate = string.format("Day %02d, Month %02d, Year %d", dayOfMonth, month, year)

    return formattedTime, formattedDate
end

-- Main loop
while true do
    term.clear()

    local formattedTime, formattedDate = getMinecraftDateTime()

    local xPosTime = screenWidth - string.len(formattedTime)
    xPosTime = math.ceil(xPosTime / 2)
    term.setCursorPos(xPosTime + 1, yPos + 2)
    print(formattedTime)

    local xPosDate = screenWidth - string.len(formattedDate)
    xPosDate = math.ceil(xPosDate / 2)
    term.setCursorPos(xPosDate + 1, yPos + 1)
    print(formattedDate)

    sleep(.1)
end