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/*--------------------------------------------------------------------------
 *  Copyright (c) 2010-2020, Elon.su All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * Neither the name of the elon developer nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * Author: Elon.su, you can also mail [email protected]
 *--------------------------------------------------------------------------
 */
package com.github.dennisit.vplus.data.utils;

import com.spring.boxes.dollar.$;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.swing.text.html.Option;
import java.awt.*;
import java.io.File;
import java.io.IOException;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.nio.charset.StandardCharsets;
import java.util.Enumeration;
import java.util.List;
import java.util.Optional;

/**
 * Created by Elon.su on 17/5/13.
 */
@Slf4j
public class SystemUtils {

    private static final Logger LOG = LoggerFactory.getLogger(SystemUtils.class);

    public static String getOsName() {
        return System.getProperty("os.name");
    }

    public static boolean isWindowsOS() {
        return Optional.ofNullable(getOsName()).orElse(StringUtils.EMPTY).toLowerCase().indexOf("windows") > -1;
    }

    public static String getLocalIP() {
        try {
            return isWindowsOS() ? InetAddress.getLocalHost().getHostAddress() : getLinuxLocalIp();
        } catch (UnknownHostException e) {
            log.error(e.getLocalizedMessage(), e);
        }
        return StringUtils.EMPTY;
    }

    public static String getLocalHostName() {
        try {
            return InetAddress.getLocalHost().getHostName();
        } catch (UnknownHostException e) {
            log.error(e.getLocalizedMessage(), e);
        }
        return StringUtils.EMPTY;
    }

    private static String getLinuxLocalIp() {
        String ip = "127.0.0.1";
        try {
            for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {
                NetworkInterface intf = en.nextElement();
                String name = intf.getName();
                if (!name.contains("docker") && !name.contains("lo")) {
                    for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {
                        InetAddress inetAddress = enumIpAddr.nextElement();
                        if (!inetAddress.isLoopbackAddress()) {
                            String ipAddress = inetAddress.getHostAddress();
                            if (!ipAddress.contains("::") && !ipAddress.contains("0:0:") && !ipAddress.contains("fe80")) {
                                ip = ipAddress;
                                log.debug(ipAddress);
                            }
                        }
                    }
                }
            }
        } catch (SocketException ex) {
            log.debug("获取ip地址异常");
            log.error(ex.getLocalizedMessage(), ex);
        }
        log.debug("IP:" + ip);
        return ip;
    }


    @Deprecated
    public static void shell(String script) {
        Process process = null;
        try {
            String[] cmd = {"sh", script};
            process = Runtime.getRuntime().exec(cmd);
            process.waitFor();
        } catch (Exception e) {
            LOG.error(e.getMessage(), e);
        } finally {
            if (null != process) {
                process.destroy();
            }
        }
    }

    /**
     * 获取系统支持的字形名集合
     *
     * @return 字形名数组
     */
    public static String[] getSupportFontNames() {
        return GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
    }

    public static class MySQL {

        public static void dump(String host, String user, String pass, java.util.List databases) {
            dump(host, 3306, user, pass, databases, "/opt/backup/");
        }

        public static void dump(String host, int port, String user, String pass, java.util.List databases) {
            dump(host, port, user, pass, databases, "/opt/backup/");
        }

        public static void dump(String host, String user, String pass, java.util.List databases, String backPath) {
            dump(host, 3306, user, pass, databases, backPath);
        }

        public static void dump(String host, int port, String user, String pass, List databases, String backPath) {
            if (StringUtils.isBlank(user) || StringUtils.isBlank(pass) || CollectionUtils.isEmpty(databases)) {
                throw new IllegalArgumentException("参数缺失");
            }
            if (port <= 0) {
                port = 3306;
            }
            if (StringUtils.isBlank(host)) {
                host = "127.0.0.1:3306";
            }
            if (StringUtils.isBlank(backPath)) {
                backPath = "/opt/backup/";
            }
            Process process = null;
            try {
                String fileName = backPath + "SQL-" + $.nowFormat("yyyyMMddHHmmss") + ".sql";
                FileUtils.write(new File(fileName), "", StandardCharsets.UTF_8);
                String dumpShell = "mysqldump -h{host} -P{port} -u{user} -p'{pass}' --default-character-set=utf8 --lock-tables=false --databases {databases} > {backPath}"
                        .replaceAll("\\{host\\}", host)
                        .replaceAll("\\{port\\}", String.valueOf(port))
                        .replaceAll("\\{user\\}", user)
                        .replaceAll("\\{pass\\}", pass)
                        .replaceAll("\\{databases\\}", StringUtils.join(databases, " "))
                        .replaceAll("\\{backPath\\}", fileName);

                process = Runtime.getRuntime().exec(dumpShell);
                process.waitFor();
            } catch (Exception e) {
                LOG.error(e.getMessage(), e);
            } finally {
                if (null != process) {
                    process.destroy();
                }
            }
        }
    }
}