function [data_out, state_out] = moveit_wrapper(func_name, data_in, para)
    % Generic wrapper for legacy MATLAB functions using loop-based execution
    %
    % Usage:
    %   [data_out, state_out] = wrapper('quantize', data_in, para);
    %
    % Inputs:
    %   - func_name: Name of the function as a string (e.g., 'quantize')
    %   - data_in: Input signal or empty for initialization
    %   - para: Structure with parameters (optional)
    %
    % Outputs:
    %   - data_out: Processed output signal
    %   - state_out: Internal state of the function
    
    global loop;

    % Ensure the function exists
    if ~exist(func_name, 'file')
        error('Function "%s" does not exist.', func_name);
    end

    % Step 1: Get default parameters if not provided
    if nargin < 3 || isempty(para)
        loop = 0;  % Request parameter structure
        [para, comment] = feval(func_name);
    end

    % Initialize state
    state = struct();

    % Step 2: Initialize the function
    loop = 0;
    [~, state_] = feval(func_name, data_in, state, para);

    % Step 3: Process input signal
    loop = 1;
    [data_out, state_out] = feval(func_name, data_in, state_, para);
    
end