local isNearElevator = false
local currentBuilding = nil
local currentFloor = nil
local showui = false

CreateThread(function()
    while true do
        local playerPed = PlayerPedId()
        local playerCoords = GetEntityCoords(playerPed)
        local nearestDist, nearestBuilding, nearestFloor

        for _, building in ipairs(Config.Buildings) do
            if building.floors then
                for _, floor in ipairs(building.floors) do
                    local dist = #(playerCoords - vector3(floor.coords.x, floor.coords.y, floor.coords.z))
                    if not nearestDist or dist < nearestDist then
                        nearestDist = dist
                        nearestBuilding = building
                        nearestFloor = floor
                    end
                end
            end
        end

        if nearestDist and nearestDist < 1.8 then
            if not isNearElevator then
                isNearElevator = true
                currentBuilding = nearestBuilding
                currentFloor = nearestFloor
                -- Einmal anzeigen wenn Zone betreten, 5000ms
                exports['hex_4_hud']:ShowHelpNotify("Aufzug benutzen", "E", 5000)
            end
        else
            if isNearElevator then
                isNearElevator = false
                currentBuilding = nil
                currentFloor = nil
                exports['hex_4_hud']:HideHelpNotify()
            end
        end

        Wait(500)
    end
end)

-- Input-Loop
CreateThread(function()
    while true do
        if isNearElevator and not showui then
            if IsControlJustReleased(0, 38) then
                OpenElevatorUI(currentBuilding, currentFloor)
            end
            Wait(0)
        else
            Wait(500)
        end
    end
end)

function OpenElevatorUI(building, currentFloor)
    exports['hex_4_hud']:HideHelpNotify()
    SendNUIMessage({ action = "open", building = building, currentFloor = currentFloor })
    SetNuiFocus(true, true)
    showui = true
end

function CloseElevatorUI()
    SetNuiFocus(false, false)
    showui = false
end

RegisterNUICallback('close', function(data, cb)
    CloseElevatorUI()
    cb('OK')
end)

RegisterNUICallback('setNuiFocus', function(data, cb)
    SetNuiFocus(data.focus, data.cursor)
    cb('OK')
end)

RegisterNUICallback('floorSelected', function(data, cb)
    local coords = data.coords
    if coords then
        local ped = PlayerPedId()
        FreezeEntityPosition(ped, true)
        SetNuiFocus(false, false)

        exports['hex_4_hud']:Notify("Aufzug", "Der Aufzug wurde gerufen...", "info", 4000)

        Wait(2000)
        PlaySoundFrontend(-1, "CLOSED", "MP_PROPERTIES_ELEVATOR_DOORS", 1)
        Wait(2500)
        PlaySoundFrontend(-1, "Hack_Success", "DLC_HEIST_BIOLAB_PREP_HACKING_SOUNDS", 0)
        Wait(500)
        PlaySoundFrontend(-1, "OPENED", "MP_PROPERTIES_ELEVATOR_DOORS", 1)

        SetEntityCoords(ped, coords.x, coords.y, coords.z - 1)
        SetEntityHeading(ped, coords.w)
        FreezeEntityPosition(ped, false)

        exports['hex_4_hud']:Notify("Aufzug", "Etage erreicht.", "success", 3000)
        showui = false
    end
    cb('OK')
end)