local M = {}

---@param str string
---@param hl string|rc.Highlight
---@return string
function M.with_hl(str, hl)
    return "%#" .. (type(hl) == "string" and hl or hl.name) .. "#" .. str .. "%*"
end

do
    ---@package
    M._funcs = {}
    local funcs_count = 0
    local modname = ...

    ---@param func fun(): string
    ---@param args? string
    ---@return string
    function M.as_opt(func, args)
        local idx ---@type string
        if M._funcs[func] then
            idx = M._funcs[func]
        else
            funcs_count = funcs_count + 1
            idx = "n" .. funcs_count
            M._funcs[idx] = func
            M._funcs[func] = idx
        end
        args = args or ""
        return ("%%!v:lua.require'%s'._funcs.%s(%s)"):format(modname, idx, args)
    end
end

return M