minetest.register_node("mesecons_debug:penalty_controller", {
    description = "Mesecons penalty controller",
    groups = {
        cracky = 3,
        not_in_creative_inventory = 1,
    },

    on_construct = function(pos)
        local meta = minetest.get_meta(pos)
        meta:set_string("formspec", "field[channel;Channel;${channel}")
    end,

    tiles = {
        "penalty_controller_top.png",
        "jeija_microcontroller_bottom.png",
        "jeija_microcontroller_sides.png",
        "jeija_microcontroller_sides.png",
        "jeija_microcontroller_sides.png",
        "jeija_microcontroller_sides.png"
    },

    inventory_image = "penalty_controller_top.png",
    drawtype = "nodebox",
    selection_box = {
        --From luacontroller
        type = "fixed",
        fixed = { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -5 / 16, 8 / 16 },
    },
    node_box = {
        --From Luacontroller
        type = "fixed",
        fixed = {
            { -8 / 16, -8 / 16, -8 / 16, 8 / 16, -7 / 16, 8 / 16 }, -- Bottom slab
            { -5 / 16, -7 / 16, -5 / 16, 5 / 16, -6 / 16, 5 / 16 }, -- Circuit board
            { -3 / 16, -6 / 16, -3 / 16, 3 / 16, -5 / 16, 3 / 16 }, -- IC
        }
    },

    paramtype = "light",
    sunlight_propagates = true,

    on_receive_fields = function(pos, _, fields, sender)
        local name = sender:get_player_name()
        if minetest.is_protected(pos, name) and not minetest.check_player_privs(name, { protection_bypass = true }) then
            minetest.record_protection_violation(pos, name)
            return
        end
        local meta = minetest.get_meta(pos)
        if fields.channel then
            meta:set_string("channel", fields.channel)
        end
    end,

    digiline = {
        receptor = {},
        effector = {
            action = function(pos, _, channel, msg)
                local meta = minetest.get_meta(pos)
                if meta:get_string("channel") ~= channel then
                    return
                end
                if msg == "GET" then
                    local ctx = mesecons_debug.get_context(pos)
                    -- copy and send values
                    digiline:receptor_send(pos, digiline.rules.default, channel, {
                        micros = ctx.micros,
                        avg_micros = ctx.avg_micros_per_second,
                        penalty = ctx.penalty,
                        whitelisted = ctx.whitelisted
                    })
                end
            end
        }
    }
})