package com.zy.system.entity.license;

import com.core.common.Cools;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.InetAddress;
import java.util.List;
import java.util.stream.Collectors;

public class LinuxServerInfos extends AbstractServerInfos {

    @Override
    protected List<String> getIpAddress() throws Exception {
        List<InetAddress> inetAddresses = getLocalAllInetAddress();
        if (inetAddresses == null || inetAddresses.isEmpty()) {
            return null;
        }
        return inetAddresses.stream()
                .map(InetAddress::getHostAddress)
                .distinct()
                .map(String::toLowerCase)
                .collect(Collectors.toList());
    }

    @Override
    protected List<String> getMacAddress() throws Exception {
        List<InetAddress> inetAddresses = getLocalAllInetAddress();
        if (inetAddresses == null || inetAddresses.isEmpty()) {
            return null;
        }
        return inetAddresses.stream()
                .map(this::getMacByInetAddress)
                .filter(mac -> mac != null && !mac.trim().isEmpty())
                .distinct()
                .collect(Collectors.toList());
    }

    @Override
    protected String getCPUSerial() throws Exception {
        return readFirstNonBlankLine(new String[]{"/bin/bash", "-c", "dmidecode -t processor | grep 'ID' | awk -F ':' '{print $2}' | head -n 1"});
    }

    @Override
    protected String getMainBoardSerial() throws Exception {
        return readFirstNonBlankLine(new String[]{"/bin/bash", "-c", "dmidecode | grep 'Serial Number' | awk -F ':' '{print $2}' | head -n 1"});
    }

    private String readFirstNonBlankLine(String[] shell) throws Exception {
        Process process = Runtime.getRuntime().exec(shell);
        process.getOutputStream().close();

        try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
            String line;
            while ((line = reader.readLine()) != null) {
                line = line.trim();
                if (!Cools.isEmpty(line)) {
                    return line;
                }
            }
        }

        return "";
    }
}