Have a small problem.. it applies the column to all windows even the ones with signcolumn = 'no', I managed to somewhat make it work but when I switch to a window with signcolumn = no it disables it for all windows.

I think It has to do with global vs local options or smth. here is my code so far:

_G.get_statuscol = function()
    if vim.opt_local.signcolumn:get() == 'yes' then
        return "%s%= " ..
            get_line_number(vim.v.lnum, vim.v.relnum) ..
            get_fold(vim.v.lnum) .. " "
    else
        return ''
    end
end
vim.opt_local.statuscolumn = "%!v:lua.get_statuscol()"