function AddPowerPole(event)
    local e = event.entity
    if e and e.valid and e.type == "electric-pole" then
        storage.representativePoles[e.unit_number] = e
    end
end

function RemovePowerPole(event)
    local e = event.entity
    if e then
        storage.representativePoles[e.unit_number] = nil
    end
end

function GetNetworks()
    local networks = {}

    for _, pole in pairs(storage.representativePoles) do
        if pole.valid then
            local net = pole.electric_network_id
            if net then
                networks[net] = pole
            end
        end
    end

    return networks
end

function ScanNetworks()
    storage.representative_poles = {}

    for _, surface in pairs(game.surfaces) do
        for _, pole in pairs(surface.find_entities_filtered{type = "electric-pole"}) do
            if pole.valid and pole.electric_network_id then
                storage.representativePoles[pole.unit_number] = pole
            end
        end
    end
end

function SendPowerStats()
    if options.enablePower then
        local powerPart = {}
        powerPart[#powerPart+1] = "---power-stats---\n"
        for _, pole in pairs(GetNetworks()) do
            if pole.valid and pole.type == "electric-pole" then
                local input = pole.electric_network_statistics.input_counts
                local output = pole.electric_network_statistics.output_counts
                local surfaceName = pole.surface.name
                for item,value in pairs(input) do
                    powerPart[#powerPart+1] = ("%s:%d:in:%s:%d"):format(surfaceName, pole.electric_network_id, item, value)
                end
                for item, value in pairs(output) do
                    powerPart[#powerPart+1] = ("%s:%d:out:%s:%d"):format(surfaceName,pole.electric_network_id, item, value)
                end
            end
        end
        helpers.send_udp(udpAddress,table.concat(powerPart,"\n"),serverIndex)
    end
end