on_player_setup_blueprint.lua

script.on_event(defines.events.on_player_setup_blueprint, function(event)
    local player = game.get_player(event.player_index)
    local bp = player.blueprint_to_setup
    if not bp.valid_for_read then
        bp = player.cursor_stack
    end
    local bp_ents = bp.get_blueprint_entities()
    if bp_ents then
        local source = event.mapping.get()
        for i, entity in pairs(bp_ents) do
            local sourceEntity = source[entity.entity_number]
            if sourceEntity then
                if sourceEntity.name == "akarnokd-latc-active" or sourceEntity.name == "akarnokd-latc-passive" then
                    if not entity.tags then
                        entity.tags = { }
                    end
                    local v = getLimit(sourceEntity)
                    entity.tags["latcLimit"] = v

                    log("Tagging " .. entity.entity_number .. " of " .. sourceEntity.name .. " for " .. tostring(v))
                elseif sourceEntity.name == "akarnokd-latc-requester" then
                    local trs = getThreshold(sourceEntity)
                    if trs then
                        if not entity.tags then
                            entity.tags = { }
                        end
                        entity.tags["latcThreshold"] = trs

                        log("Tagging " .. entity.entity_number .. " of " .. sourceEntity.name .. " for " 
                            .. tostring(trs.enabled) .. ", "
                            .. tostring(trs.minValue) .. ", "
                            .. tostring(trs.maxValue) .. ", "
                            .. tostring(trs.request) .. ", "
                        )
                    end
                end
            end
        end
    end
end)