const os = require('os');
const { exec } = require('child_process');
const path = require('path');
const constants = require('./constants');
const fs = require('fs');
// 判断是否为物理网卡的函数
function isPhysicalNetworkInterface(name, description) {
    // 默认的真实物理网卡名称（如 "以太网"）
    const defaultPhysicalNames = ["以太网", "eth0", "en0"]; // 可以根据需要扩展

    // 如果名称匹配默认的真实物理网卡，直接返回 true
    if (defaultPhysicalNames.includes(name)) {
        return true;
    }

    // 排除虚拟网卡的关键词
    const virtualKeywords = [
        "virtual", "hyper-v", "virtualbox", "vmware", "veth", "virbr", "tunnel",
        "docker", "loopback", "vpn", "ppp", "slip", "bridge", "vnic", "vif",
        "tap", "vlan", "vswitch", "vxlan", "gre", "ipsec", "vrf", "vport",
        "vnet", "vmac", "vxnet"
    ];

    // 检查网卡描述或名称中是否包含虚拟关键词
    const lowerName = name.toLowerCase();
    const lowerDescription = (description || '').toLowerCase();

    for (const keyword of virtualKeywords) {
        if (lowerName.includes(keyword) || lowerDescription.includes(keyword)) {
            return false; // 是虚拟网卡
        }
    }

    // 默认认为是物理网卡
    return true;
}

// 获取所有网络接口信息
function getNetworkInterfaces() {


    // 执行 wmic 命令来获取网卡描述信息
    exec('wmic nic get Name,Description,NetConnectionID', (error, stdout, stderr) => {
        if (error) {
            console.error(`执行命令时出错: ${error.message}`);
            return;
        }
        if (stderr) {
            console.error(`命令执行过程中出现错误: ${stderr}`);
            return;
        }

        // 解析命令输出
        const lines = stdout.trim().split('\n');
        const headers = lines[0].trim().split(/\s+/);
        const devices = [];

        for (let i = 1; i < lines.length; i++) {
            const values = lines[i].trim().split(/\s{2,}/);
            if (values.length === headers.length) {
                const device = {};
                for (let j = 0; j < headers.length; j++) {
                    device[headers[j]] = values[j];
                }
                devices.push(device);
            }
        }

        // 获取网络接口信息
        const networkInterfaces = os.networkInterfaces();

        // 为每个网卡添加 IPv4 地址信息
        devices.forEach((device) => {
            const netInterface = networkInterfaces[device.NetConnectionID];
            if (netInterface) {
                const ipv4Info = netInterface.find((info) => info.family === 'IPv4');
                if (ipv4Info) {
                    device.ipv4 = ipv4Info.address;
                } else {
                    device.ipv4 = '未找到 IPv4 地址';
                }
            } else {
                device.ipv4 = '未找到对应的网络接口';
            }
        });

       
    });


    const interfaces = os.networkInterfaces();
  
    //console.log(interfaces);
    const result = [];

    // 遍历所有网络接口
    for (const [name, details] of Object.entries(interfaces)) {
        for (const detail of details) {
            if (detail.family === 'IPv4' && !detail.internal) {
                const isPhysical = isPhysicalNetworkInterface(name, detail.mac);
                const networkInfo = {
                    name: name,
                    mac: detail.mac,
                    ip: detail.address,
                    physical: isPhysical ? 1 : 0
                };
                result.push(networkInfo);
            }
        }
    }

    // 将 physical: 1 的网卡排在前面
    result.sort((a, b) => b.physical - a.physical);
    // 读取文件内容
    let filePath = path.join(constants.serverPath, 'certificate.bat');
 
    filePath == `"${filePath}"`;
    //console.log("filePath:", filePath);
    fs.readFile(filePath, 'utf8', (err, data) => {
        if (err) {
            console.error('读取文件失败:', err);
            return;
        }

        // 替换内容
        const oldContent = '192.168.8.150';
        const newContent = result[0].ip;
        const updatedData = data.replace(new RegExp(oldContent, 'g'), newContent);
        //console.log("新的文件内容", updatedData);
        // 将更新后的内容写回文件
        fs.writeFile(filePath, updatedData, 'utf8', (err) => {
            if (err) {
                console.error('写入文件失败:', err);
                return;
            }
            console.log('文件内容已成功替换！');
        });
    });
    // 输出网卡描述信息和 IPv4 地址
    //console.log('网卡描述信息和 IPv4 地址:', result);
    result.forEach((device) => {
        console.log(`名称: ${device.name}, 是否物理网卡: ${device.physical},mac地址：${device.mac}, IPv4 地址: ${device.ip}`);
    });
    return result;
}

// 导出模块
module.exports = {
    getNetworkInterfaces
};