function GetAllLogisticGrids()
    local resultParts = {}
    resultParts[#resultParts+1] = "---logistic-grids---\n"
    for _,surface in pairs(game.surfaces) do
        local grids = game.forces["player"].logistic_networks[surface.name]
        for _,grid in pairs(grids) do
            resultParts[#resultParts+1] = ("%s:%d:%d:%d:%d:%d:%d"):format(
                surface.name,
                grid.network_id,
                grid.all_construction_robots,
                grid.all_logistic_robots,
                grid.available_construction_robots,
                grid.available_logistic_robots,
                grid.robot_limit)
        end
    end
    return table.concat(resultParts, "\n")
end

function GetLogisticNetworkContents()
        local resultParts = {}
    resultParts[#resultParts+1] = "---logistic-grids-contents---\n"
    for _,surface in pairs(game.surfaces) do
        local grids = game.forces["player"].logistic_networks[surface.name]
        for _,grid in pairs(grids) do
            for _,itemWithQuality in pairs(grid.get_contents())do
                resultParts[#resultParts+1] = ("%s:%d:%s:%d"):format(surface.name,grid.network_id,itemWithQuality.name..":"..itemWithQuality.quality,itemWithQuality.count)
            end
        end
    end
    return table.concat(resultParts, "\n")
end

function SendLogisticStats()
    if options.enableRobots then
        local send = GetAllLogisticGrids()..GetLogisticNetworkContents()
        helpers.send_udp(udpAddress,send,serverIndex)
    end
end