EMC Monitor Red

local itemdb = {}
local time = 0
local startemc = nil
local storage = peripheral.wrap( "back" )
local mon = peripheral.find( "monitor" )
mon.w, mon.h = mon.getSize()

local request = http.get( "https://gmod.club/scripts/cc/item_emc.json" )
local json = request.readAll()
itemdb = textutils.unserialiseJSON( json )
request.close()

local input_item = "minecraft:blaze_rod"

local function clear()
    term.clear()
    mon.clear()
    term.setCursorPos( 5, 3 )
    term.setBackgroundColor( colors.red )
    mon.setTextColor( colors.black )
    mon.setTextScale( 2 )
end

function formatTime( sec )
    return string.format( "%.2d:%.2d:%.2d", sec / ( 60 * 60 ), sec / 60 % 60,  sec % 60 )
end

function comma( n )
    return tostring( math.floor( n ) ):reverse():gsub( "(%d%d%d)","%1," ):gsub( ",(%-?)$","%1" ):reverse()
end

clear()
term.redirect( mon )

while true do

    clear()

    local emc = 0
    local amount = 0

    for slot, item in pairs( storage.list() ) do
        if item.name ~= input_item then
            amount = amount + item.count
            local stored = itemdb[item.name .. "|" .. item.damage]
            if stored then
                emc = emc + ( item.count * stored )
            end
        end
    end

    mon.setTextColor( colors.black )
    mon.setCursorPos( 8, 1 )
    mon.write( "EMC Monitor" )

    mon.setCursorPos( 5, 3 )
    mon.write( "EMC: " .. comma( emc ) )
    if startemc == nil then startemc = emc end

    local gained = emc - startemc
    local emcrate = math.floor( gained / time ) * 60
    if gained < 0 then os.reboot() end
    mon.setCursorPos( 5, 4 )
    mon.write( "EMC/m: " .. comma( emcrate ) )

    mon.setCursorPos( 5, 5 )
    mon.write( "Time: " .. formatTime( time ) )

    mon.setCursorPos( 5, 6 )
    mon.write( "Amount: " .. comma( amount ) )

    time = time + 1

    sleep( 1 )

end