package com.hdl.photovoltaic.utils;

import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;

import com.hdl.photovoltaic.HDLApp;

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

/**
 * Author: Zoro
 * Date: 2019/6/9
 * Description: This is AppManagerUtils
 */

public class AppManagerUtils {

    private static AppManagerUtils appManagerUtils;

    private AppManagerUtils() {
    }

    public static AppManagerUtils getAppManager() {
        if (null == appManagerUtils) {
            synchronized (AppManagerUtils.class) {
                if (null == appManagerUtils) {
                    appManagerUtils = new AppManagerUtils();
                }
            }
        }
        return appManagerUtils;
    }

    /**
     * 获取AppVersion
     *
     * @param context -
     * @return -
     */
    public static String getAppVersion(Context context) {
        String version = "";
        try {
            String packageName = context.getPackageName();
            PackageManager packageManager = context.getPackageManager();
            PackageInfo packageInfo = packageManager.getPackageInfo(packageName, 0);
            version = packageInfo.versionName;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return version;
    }

    /**
     * 默认的Activity堆栈
     */
    private Stack<Activity> activityStack;

    /**
     * 添加Activity到堆栈
     */
    public void addActivity(Activity activity) {
        if (activityStack == null) {
            activityStack = new Stack<>();
        }
        activityStack.add(activity);
    }


    /**
     * 移除Activity
     */
    public void removeActivity(Activity activity) {
        if (activity != null) {
            activityStack.remove(activity);
        }
    }

    /**
     * 结束指定类名的Activity
     */
    public void finishActivity(Class<?>... args) {
        Iterator<Activity> iterator = activityStack.listIterator();
        while (iterator.hasNext()) {
            Activity activity = iterator.next();
            for (Class<?> cls : args) {
                if (activity.getClass().equals(cls)) {
                    activity.finish();
                    iterator.remove();
                }
            }
        }
    }

    /**
     * 指定一个类名,从指定类名开始移除后面所有Activity
     *
     * @param className   Activity-类名(activity.getClass().getName())
     * @param removeClass 是否移除本身(true-移除)
     */
    public void finishActivity(String className, boolean removeClass) {
        Iterator<Activity> iterator = activityStack.listIterator();
        while (iterator.hasNext()) {
            Activity activity = iterator.next();
            if (activity.getClass().getName().equals(className)) {
                if (removeClass) {
                    activity.finish();
                    iterator.remove();
                }
                break;
            } else {
                activity.finish();
                iterator.remove();
            }
        }

//        int count= activityStack.size() - 1;
//        for (Iterator<Activity> it = activityStack.listIterator(count); it.hasNext(); ) {
//            Activity activity = it.next();
//            System.out.println("移除结束" + activity.getClass().getName());
//            if (activity.getClass().getName().equals(className)) {
//                if (removeClass) {
//                    activity.finish();
//                    it.remove();
//                }
//                break;
//            } else {
//                activity.finish();
//                it.remove();
//            }
//        }
    }

    /**
     * 结束所有Activity
     */
    public void finishAllActivity() {
        for (int i = 0, size = activityStack.size(); i < size; i++) {
            if (null != activityStack.get(i)) {
                Activity activity = activityStack.get(i);
                if (!activity.isFinishing()) {
                    activity.finish();
                }
            }
        }
        activityStack.clear();
    }


    /**
     * 获取ActivitySize
     */
    public int getActivitySize() {
        return activityStack.size();
    }

//    /**
//     * 判断当前应用是否是debug状态
//     */
//    public static boolean isApkInDebug(Context context) {
//        try {
//            ApplicationInfo info = context.getApplicationInfo();
//            return (info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
//        } catch (Exception e) {
//            return false;
//        }
//    }

    /**
     * 获得IP地址，分为两种情况:
     * 一：是wifi下；
     * 二：是移动网络下；
     */
    public String getIPAddress(Context context) {
        NetworkInfo info = ((ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();
        if (info != null && info.isConnected()) {
            if (info.getType() == ConnectivityManager.TYPE_MOBILE) {//当前使用2G/3G/4G网络
                try {
                    //Enumeration<NetworkInterface> en=NetworkInterface.getNetworkInterfaces();
                    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) {
                    e.printStackTrace();
                }
            } else if (info.getType() == ConnectivityManager.TYPE_WIFI) {//当前使用无线网络
                WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
                WifiInfo wifiInfo = wifiManager.getConnectionInfo();
                //调用方法将int转换为地址字符串
                String ipAddress = intIP2StringIP(wifiInfo.getIpAddress());//得到IPV4地址
                return ipAddress;
            }
        } else {
            //当前无网络连接,请在设置中打开网络
        }
        return null;
    }

    /**
     * 将得到的int类型的IP转换为String类型
     *
     * @param ip int类型
     * @return -
     */
    public static String intIP2StringIP(int ip) {
        return (ip & 0xFF) + "." +
                ((ip >> 8) & 0xFF) + "." +
                ((ip >> 16) & 0xFF) + "." +
                (ip >> 24 & 0xFF);
    }


}