local sides = {"top", "bottom", "left", "right", "front", "back"}
local meBridge = nil
local monitor = peripheral.find("monitor") -- Find a connected monitor
local speaker = peripheral.find("speaker") -- Find a connected speaker
local dfpwm = require("cc.audio.dfpwm") -- Load DFPWM decoder

-- Function to find the ME Bridge on any side
for _, side in ipairs(sides) do
    if peripheral.getType(side) == "meBridge" then
        meBridge = peripheral.wrap(side)
        print("ME Bridge found on: " .. side)
        break
    end
end

if not meBridge then
    print("Error: ME Bridge not found on any side!")
    return
else
    print("ME Bridge successfully detected!")
end

if not monitor then
    print("Error: No monitor found!")
    return
else
    print("Monitor successfully detected!")
    monitor.setTextScale(1) -- Set text scale for better visibility
end

-- Play boot sound if speaker is present
if speaker then
    local file = fs.open("123.dfpwm", "rb")
    if file then
        local decoder = dfpwm.make_decoder()
        local chunk = file.readAll()
        file.close()

        -- Play audio in chunks to prevent lag
        for chunk in decoder(chunk) do
            speaker.playAudio(chunk)
            sleep(0.05) -- Small delay to allow audio to process
        end
    else
        print("Boot sound file '123.dfpwm' not found.")
    end
end

-- Function to format numbers with commas
function formatNumber(num)
    local formatted = tostring(num)
    local k = 3
    while k < #formatted do
        formatted = formatted:sub(1, #formatted - k) .. "," .. formatted:sub(#formatted - k + 1)
        k = k + 4
    end
    return formatted
end

-- Function to calculate storage usage
function getStorageUsage()
    local itemUsage = meBridge.getUsedItemStorage and meBridge.getUsedItemStorage() or 0
    local itemTotal = meBridge.getTotalItemStorage and meBridge.getTotalItemStorage() or 1 -- Avoid division by zero
    local fluidUsage = meBridge.getUsedFluidStorage and meBridge.getUsedFluidStorage() or 0
    local fluidTotal = meBridge.getTotalFluidStorage and meBridge.getTotalFluidStorage() or 1

    return {
        item = {
            used = itemUsage,
            free = itemTotal - itemUsage,
            total = itemTotal,
            percent = (itemUsage / itemTotal) * 100
        },
        fluid = {
            used = fluidUsage,
            free = fluidTotal - fluidUsage,
            total = fluidTotal,
            percent = (fluidUsage / fluidTotal) * 100
        }
    }
end

-- Function to center text on the monitor
function centerText(y, text, color)
    local w, _ = monitor.getSize()
    local x = math.floor((w - #text) / 2) + 1
    monitor.setCursorPos(x, y)
    if color then monitor.setTextColor(color) end
    monitor.write(text)
    monitor.setTextColor(colors.white) -- Reset text color
end

-- Function to update the monitor display
function updateMonitor()
    local storage = getStorageUsage()
    monitor.clear()

    centerText(1, "Item Storage", colors.yellow)
    centerText(2, "---------------------", colors.yellow)
    centerText(3, "Used: " .. formatNumber(storage.item.used) .. " | Free: " .. formatNumber(storage.item.free), colors.white)
    centerText(4, string.format("%.1f%% Used | %.1f%% Free", storage.item.percent, 100 - storage.item.percent), colors.white)

    centerText(6, "Fluid Storage", colors.blue)
    centerText(7, "---------------------", colors.blue)
    centerText(8, "Used: " .. formatNumber(storage.fluid.used) .. " | Free: " .. formatNumber(storage.fluid.free), colors.white)
    centerText(9, string.format("%.1f%% Used | %.1f%% Free", storage.fluid.percent, 100 - storage.fluid.percent), colors.white)
end

-- Continuously update the monitor
while true do
    updateMonitor()
    sleep(5) -- Updates every 5 seconds
end