package me.bello.viptv.util;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.LinkAddress;
import android.net.LinkProperties;
import android.net.Network;
import android.net.NetworkInfo;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.util.Log;

import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

/**
 * @Info 获取设备IP地址
 * @Author Bello
 * @Time 21-1-8 上午10:18
 * @Ver
 */
public class IpHelper {
    /**
     * 获取当前ip地址
     * @return
     */
    public static String getLocalIpAddress(Context context) {
        NetworkInfo info = ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();
        if (info != null && info.isConnected()) {
            if (info.getType() == ConnectivityManager.TYPE_MOBILE) {    //3G/4G网络
                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() && inetAddress instanceof Inet4Address) {
                                return inetAddress.getHostAddress();
                            }
                        }
                    }
                } catch (SocketException e) {
                    Log.e("getLocalIpAddress", "获取3G/4G网络IP失败");
                }
            } else if (info.getType() == ConnectivityManager.TYPE_WIFI) {     // wifi
                WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
                WifiInfo wifiInfo = wifiManager.getConnectionInfo();
                String ipAddress = int2ip(wifiInfo.getIpAddress());
                return ipAddress;
            } else if (info.getType() == ConnectivityManager.TYPE_ETHERNET) {    //有线
                ConnectivityManager mConnectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
                Network network = null;
                if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
                    network = mConnectivityManager.getActiveNetwork();
                    LinkProperties linkProperties = mConnectivityManager.getLinkProperties(network);
                    for (LinkAddress linkAddress : linkProperties.getLinkAddresses()) {
                        InetAddress address = linkAddress.getAddress();
                        if (address instanceof Inet4Address) {
                            return address.getHostAddress();
                        }
                    }
                } else {
                    return getLocalIp();
                }
                return "0.0.0.0";
            }
        } else {
            return "0.0.0.0";
        }
        return "0.0.0.0";
    }

    /**
     * 得到有线网关的IP地址
     * @return
     */
    private static String getLocalIp() {
        try {
            // 获取本地设备的所有网络接口
            Enumeration<NetworkInterface> enumerationNi = NetworkInterface.getNetworkInterfaces();
            while (enumerationNi.hasMoreElements()) {
                NetworkInterface networkInterface = enumerationNi.nextElement();
                String interfaceName = networkInterface.getDisplayName();
                Log.i("tag", "网络名字" + interfaceName);

                // 如果是有限网卡
                if (interfaceName.equals("eth0")) {
                    Enumeration<InetAddress> enumIpAddr = networkInterface.getInetAddresses();

                    while (enumIpAddr.hasMoreElements()) {
                        // 返回枚举集合中的下一个IP地址信息
                        InetAddress inetAddress = enumIpAddr.nextElement();
                        // 不是回环地址，并且是ipv4的地址
                        if (!inetAddress.isLoopbackAddress()
                                && inetAddress instanceof Inet4Address) {

                            return inetAddress.getHostAddress();
                        }
                    }
                }
            }

        } catch (SocketException e) {
            e.printStackTrace();
        }
        return "0.0.0.0";

    }


    /**
     * 将ip的整数形式转换成ip形式
     * @param ipInt
     * @return
     */
    private static String int2ip(int ipInt) {
        StringBuilder sb = new StringBuilder();
        sb.append(ipInt & 0xFF).append(".");
        sb.append((ipInt >> 8) & 0xFF).append(".");
        sb.append((ipInt >> 16) & 0xFF).append(".");
        sb.append((ipInt >> 24) & 0xFF);
        return sb.toString();
    }
}