package com.hdl.sdk.link.common.utils;

import android.content.Context;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;

import java.net.InetAddress;
import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

/**
 * Created by Tong on 2021/9/27.
 */
public class IpUtils {

    /**
     * @return 广播地址
     */
    public static String getBroadcastAddress() {
        try {
            for (Enumeration<NetworkInterface> niEnum = NetworkInterface.getNetworkInterfaces();
                 niEnum.hasMoreElements(); ) {
                NetworkInterface ni = niEnum.nextElement();
                if (!ni.isLoopback()) {
                    for (InterfaceAddress interfaceAddress : ni.getInterfaceAddresses()) {
                        if (interfaceAddress.getBroadcast() != null) {
                            return interfaceAddress.getBroadcast().toString().substring(1);
                        }
                    }
                }
            }
        } catch (SocketException e) {
            e.printStackTrace();
        }
        return "255.255.255.255";
    }

    public static boolean isLocalIpAddress(String ipAddress) {
        try {
            for (Enumeration<NetworkInterface> niEnum = NetworkInterface.getNetworkInterfaces();
                 niEnum.hasMoreElements(); ) {
                NetworkInterface ni = niEnum.nextElement();
                for (InterfaceAddress interfaceAddress : ni.getInterfaceAddresses()) {
                    if (ipAddress.equals(interfaceAddress.getAddress().getHostAddress())) {
                        return true;
                    }
                }
            }
        } catch (SocketException e) {
            e.printStackTrace();
        }
        return false;
    }

    public static String getIP(Context application) {
        WifiManager wifiManager = (WifiManager) application.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
        if (!wifiManager.isWifiEnabled()) {
            try {
                for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) {
                    NetworkInterface intf = en.nextElement();
                    for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements(); ) {
                        InetAddress inetAddress = enumIpAddr.nextElement();
                        if (!inetAddress.isLoopbackAddress()) {
                            return inetAddress.getHostAddress();
                        }
                    }
                }
            } catch (SocketException e) {
                e.printStackTrace();
            }
        } else {
            WifiInfo wifiInfo = wifiManager.getConnectionInfo();
            int ipAddress = wifiInfo.getIpAddress();
            return intToIp(ipAddress);
        }
        return null;
    }


    private static String intToIp(int i) {

        return (i & 0xFF) + "." +
                ((i >> 8) & 0xFF) + "." +
                ((i >> 16) & 0xFF) + "." +
                (i >> 24 & 0xFF);
    }
}