local _device = "detector_geiger"
local is_anm_playing = false
local tg_acon = 0
local tg_acon_step = 180

local simple_mode = item_geiger_mcm.get_config("mode")


function on_game_start()
    RegisterScriptCallback("on_option_change", on_option_change)
    RegisterScriptCallback("on_key_release", on_key_release)
    RegisterScriptCallback("actor_on_first_update", actor_on_first_update)
end


function on_option_change()
    simple_mode = item_geiger_mcm.get_config("mode")
    if simple_mode then
        item_device.dosimeter_env_rads_mode = false
    else
        item_device.dosimeter_env_rads_mode = true
    end

end


function actor_on_first_update()
    if not simple_mode then
        item_device.dosimeter_env_rads_mode = true --force dosimeter to show only environment rads
    end
end


function actor_on_update()
    local env_rads = math.floor(level.get_env_rads() * 2500)
    local rads = math.floor(db.actor.radiation * 10000 * 0.387)

    --checking if dosimeter screen flicher caused by constant change if this variable
    if env_rads > rads then
        item_device.dosimeter_env_rads_mode = true
    else
        item_device.dosimeter_env_rads_mode = false
    end

    --try play sound
    local actor = db.actor
    local radiation = actor.radiation
    local tg = time_global()
    if tg > tg_acon then
        tg_acon = tg + tg_acon_step

        if (radiation > 0) then
            if (math.random() < radiation) then
                radiation = (radiation > 0.5) and (math.random() < radiation / 1.3) and "click3" or math.random(8)
                local snd = sound_object("detectors\\geiger_" .. radiation)
                snd:play(actor, 0, sound_object.s2d)
            end
        end
    end
end


function on_key_release(key)
    if key ~= DIK_keys["MOUSE_1"] then return end 
    if is_anm_playing then return end
    if not is_empty(_GUIs) then return end --if some ui opened and we click left mouse button - do nothing

    local detector = db.actor:active_detector()
    local wep = db.actor:active_item()

    if detector and (detector:section() == _device) and (not wep) then
        local state = detector:get_state()
        if state == 0 then
            -- if simple mode just switch geiger modes, if not perform selfscan
            if simple_mode then

                is_anm_playing = true
                game.only_allow_movekeys(true)

                if item_device.dosimeter_env_rads_mode then
                    local anm_length = game.get_motion_length("detector_geiger_hud", "anm_geiger_modeswitch", 1) / 1000
                    game.play_hud_motion(2, "detector_geiger_hud", "anm_geiger_modeswitch", false, 1)
                    utils_obj.play_sound("new_detectors\\dosimeter\\dosimeter_modeswitch")
                    Invoke("geiger_mode_switch_te0", 0.6, function()
                        item_device.dosimeter_env_rads_mode = false
				        actor_menu.set_msg(1, game.translate_string("st_dosimeter_mode")..": "..game.translate_string("st_actor_rads") , 3)
                    end)
                    Invoke("geiger_mode_switch_te1", anm_length + 0.1, function()
                        game.only_allow_movekeys(false)
                        is_anm_playing = false
                    end)
                else
                    local anm_length = game.get_motion_length("detector_geiger_hud", "anm_geiger_modeswitch_b", 1) / 1000
                    game.play_hud_motion(2, "detector_geiger_hud", "anm_geiger_modeswitch_b", false, 1)
                    utils_obj.play_sound("new_detectors\\dosimeter\\dosimeter_modeswitch_b")
                    Invoke("geiger_mode_switch_te0", 0.6, function()
                        item_device.dosimeter_env_rads_mode = true
				        actor_menu.set_msg(1, game.translate_string("st_dosimeter_mode")..": "..game.translate_string("st_environment_rads") , 3)
                    end)
                    Invoke("geiger_mode_switch_te1", anm_length + 0.1, function()
                        game.only_allow_movekeys(false)
                        is_anm_playing = false
                    end)
                end


            else

                --stop self scan from playing till we finish current one
                is_anm_playing = true
                game.only_allow_movekeys(true)
                
                --perform self scan
                local anm_length = game.get_motion_length("detector_geiger_hud", "anm_geiger_scan", 1) / 1000
                
                game.play_hud_motion(2, "detector_geiger_hud", "anm_geiger_scan", false, 1)
                utils_obj.play_sound("new_detectors\\dosimeter\\dosimeter_selfscan")

                Invoke("geiger_self_scan_start_te", 0.8, function ()
                    RegisterScriptCallback("actor_on_update", actor_on_update)
                end)
                
                Invoke("geiger_self_scan_end_te", 3.8, function ()
                    UnregisterScriptCallback("actor_on_update", actor_on_update)
                    item_device.dosimeter_env_rads_mode = true
                end)
                
                Invoke("geiger_self_scan_end_te1", anm_length + 0.25, function ()
                    game.only_allow_movekeys(false)
                    is_anm_playing = false
                end)

            end
                
        end
    end
end


----------------------------------------
-- utils cus i'm lazy to type one more string and "return true" at the end for some reason
----------------------------------------
function Invoke(name, time, action)
    CreateTimeEvent("liz_geiger_overhaul", name, time, function()
        action()
        return true
    end)
end