local _global = {
    utils = require 'mp.utils',
    msg = require 'mp.msg',
    currentFps = "",
    isFs = false
}


function revertFPS()
    if (_global.isFs == false) then
        return
    end
    setFPS("60")
end

function setFPS(value)
    if (value == _global.current_fps) then
        _global.msg.info("FPS is already " .. value)
        return
    end
    _global.current_fps = value
    _global.msg.info("Set FPS to " .. value)
    _global.utils.subprocess({
        ["cancellable"] = false,
        ["args"] = {
            [1] = "nircmdc",
            [2] = "setdisplay",
            [3] = "3840",
            [4] = "2160",
            [5] = "32",
            [6] = value
        }
    })
end

function start(name, value)
    _global.msg.verbose("Got fullscreen " .. tostring(value))
    _global.isFs = value
    if (value == true) then
        fps = mp.get_property_native("container-fps")
        _global.msg.verbose("Got FPS " .. tostring(fps))
        if ((24.0 - fps) < 2.0) then
            setFPS("47")
        else
            setFPS("60")
        end
    else
        setFPS("60")
    end
end

mp.observe_property("fullscreen", "bool", start)
mp.register_event("shutdown", revertFPS)