local S = minetest.get_translator(minetest.get_current_modname())

local default_on_interval = minetest.settings:get("mesecons_clock.default_on_interval", 1) or 1
local default_off_interval = minetest.settings:get("mesecons_clock.default_off_interval", 1) or 1

local meseclock_toggle_timer = function (pos)
   local timer = minetest.get_node_timer(pos)

   if timer:is_started() then
      timer:stop()
   else
      local node = minetest.get_node(pos)
      local nodedef = minetest.registered_nodes[node.name]
      local meta = minetest.get_meta(pos)
      local meta_on_interval = meta:get_int("on_time") or default_on_interval
      local meta_off_interval = meta:get_int("off_time") or default_off_interval

      if (nodedef.__mesecon_state == "on") then
         timer:start(meta_on_interval)
      else
         timer:start(meta_off_interval)
      end
   end
end

local meseclock_on_timer = function (pos)
   local node = minetest.get_node(pos)

   if (mesecon.flipstate(pos, node) == "on") then
      mesecon.receptor_on(pos)
   else
      mesecon.receptor_off(pos)
   end

   meseclock_toggle_timer(pos)
end

local meseclock_make_formspec = function (pos)
   local meta = minetest.get_meta(pos)
   if meta:get_string("on_time") == "" then meta:set_string("on_time", "1") end
   if meta:get_string("off_time") == "" then meta:set_string("off_time", "1") end

   meta:set_string(
      "formspec", "size[6,2.5]" ..
      "field[0.3, 0;3,2;on_time;" .. S("On time (seconds)") .. ":;${on_time}]" ..
      "field[3.3, 0;3,2;off_time;" .. S("Off time (seconds)") .. ":;${off_time}]" ..
      "button_exit[0.3,0.5;2,3;;" .. S("Save") .. "]"
   )
end

local meseclock_on_construct = function (pos)
   meseclock_make_formspec(pos)
   meseclock_toggle_timer(pos)
end

local meseclock_on_receive_fields = function (pos, _, fields, sender)
   if not fields.on_time then return end
   if minetest.is_protected(pos, sender:get_player_name()) then return end

   local meta = minetest.get_meta(pos)
   meta:set_string("on_time", fields.on_time or to_string(default_on_time))
   meta:set_string("off_time", fields.off_time or to_string(default_off_time))

   meseclock_make_formspec(pos)
end

local node_defaults = {
   description = S("Mesecons Clock"),
   drawtype = "nodebox",
   use_texture_alpha = minetest.features.use_texture_alpha_string_modes and "opaque" or nil,
   walkable = true,
   selection_box = {
      type = "fixed",
      fixed = { -8/16, -8/16, -8/16, 8/16, -7/16, 8/16 },
   },
   node_box = {
      type = "fixed",
      fixed = {
         { -8/16, -8/16, -8/16, 8/16, -7/16, 8/16 },
         { -6/16, -7/16, -6/16, 6/16, -6/16, 6/16 },
      },
   },
   paramtype = "light",
   paramtype2 = "facedir",
   sunlight_propagates = true,
   is_ground_content = false,
   sounds = mesecon.node_sound.stone,
   on_blast = mesecon.on_blastnode,
   drop = "mesecons_clock:clock_off",
   on_construct = meseclock_on_construct,
   on_receive_fields = meseclock_on_receive_fields,
   on_punch = function (pos, _, clicker)
      if minetest.is_protected(pos, clicker and clicker:get_player_name() or "") then
         return
      end

      meseclock_toggle_timer(pos)
   end,
   on_timer = meseclock_on_timer,
}
local off_state = {
   inventory_image = "jeija_gate_off.png^meseclock.png",
   wield_image = "jeija_gate_off.png^meseclock.png",
   tiles = {
      "jeija_microcontroller_bottom.png^meseclock_output_off.png^jeija_gate_off.png^meseclock.png",
      "jeija_microcontroller_bottom.png^meseclock_output_off.png",
      "jeija_gate_side.png^jeija_gate_side_output_off.png",
      "jeija_gate_side.png^jeija_gate_side_output_off.png",
      "jeija_gate_side.png^jeija_gate_side_output_off.png",
      "jeija_gate_side.png^jeija_gate_side_output_off.png",
   },
   groups = { bendy = 2, snappy = 1, dig_immediate = 2 },
   mesecons = {
      receptor = { state = mesecon.state.off },
   },
}
local on_state = {
   inventory_image = "jeija_gate_on.png^meseclock.png",
   wield_image = "jeija_gate_on.png^meseclock.png",
   tiles = {
      "jeija_microcontroller_bottom.png^meseclock_output_on.png^jeija_gate_on.png^meseclock.png",
      "jeija_microcontroller_bottom.png^meseclock_output_on.png",
      "jeija_gate_side.png^jeija_gate_side_output_on.png",
      "jeija_gate_side.png^jeija_gate_side_output_on.png",
      "jeija_gate_side.png^jeija_gate_side_output_on.png",
      "jeija_gate_side.png^jeija_gate_side_output_on.png",
   },
   groups = { bendy = 2, snappy = 1, dig_immediate = 2, not_in_creative_inventory = 1 },
   mesecons = {
      receptor = { state = mesecon.state.on },
   },
}

mesecon.register_node("mesecons_clock:clock", node_defaults, off_state, on_state)

if (minetest.get_modpath("mesecons_blinkyplant")) then
   minetest.register_craft({
         type = "shapeless",
         output = "mesecons_clock:clock_off",
         recipe = {"mesecons_blinkyplant:blinky_plant_off", "mesecons_delayer:delayer_off_1"},
   })
end

minetest.register_craft({
      type = "shaped",
      output = "mesecons_clock:clock_off",
      recipe = {
         {"group:mesecon_conductor_craftable", "mesecons_delayer:delayer_off_1", "group:mesecon_conductor_craftable"},
         {"group:mesecon_conductor_craftable", "mesecons_delayer:delayer_off_1", "group:mesecon_conductor_craftable"},
      },
})