#!/usr/bin/ucode
/*
 * SPDX-License-Identifier: GPL-2.0-only
 *
 * Copyright (C) 2021-2025  sirpdboy  <herboy2008@gmail.com> https://github.com/sirpdboy/luci-app-netdata 
 */

'use strict';

import { access, popen } from 'fs';

function get_netdata_version() {
    if (!access('/usr/sbin/netdata'))
        return null;
    
    const fd = popen("a=`/usr/sbin/netdata -v`&&echo $a |awk -F v '{printf $2}'");
    if (fd) {
        let output = trim(fd.read('all'));
        fd.close();
        // 方法1: 简单替换（推荐）
        let version_with_v = replace(output, "netdata ", "");
        // 方法2: 去掉 v 前缀
        let version_clean = replace(version_with_v, "v", "");
        return version_with_v;  // 返回 "v2.3.2"
    }
    return null;
}

const methods = {
    get_version: {
        call: function() {
            let version = get_netdata_version();
            if (!version)
                return { version: null, error: '无法获取 netdata 版本' };
            
            return { version: version };
        }
    },
    
    get_version_clean: {
        call: function() {
            let version = get_netdata_version();
            if (!version)
                return { version: null, error: '无法获取 netdata 版本' };
            
            // 去掉 "v" 前缀，返回纯数字版本
            let clean_version = replace(version, /^v/, "");
            return { version: clean_version };
        }
    }
};

return { 'luci.netdata': methods };