package com.mogo.utils;

import android.app.ActivityManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.text.TextUtils;

import java.util.List;

/**
 * @author congtaowang
 * @since 2020-04-09
 * <p>
 * 描述
 */
public class AppUtils {

    public static boolean isApplicationBroughtToBackground( final Context context ) {
        ActivityManager am = ( ActivityManager ) context.getSystemService( Context.ACTIVITY_SERVICE );
        List< ActivityManager.RunningTaskInfo > tasks = am.getRunningTasks( 1 );
        if ( !tasks.isEmpty() ) {
            ComponentName topActivity = tasks.get( 0 ).topActivity;
            if ( !topActivity.getPackageName().equals( context.getPackageName() ) ) {
                return true;
            }
        }
        return false;
    }

    public static boolean isAppInstalled( Context context, String pkg ) {
        PackageInfo packageInfo;
        if ( TextUtils.isEmpty( pkg ) ) {
            return false;
        }
        try {
            packageInfo = context.getPackageManager().getPackageInfo( pkg, 0 );
        } catch ( PackageManager.NameNotFoundException e ) {
            packageInfo = null;
            e.printStackTrace();
        }
        if ( packageInfo == null ) {
            return false;
        } else {
            return true;
        }
    }

    public static String getApplicationLabel( Context context, String pkgName ) {
        try {
            PackageManager pm = context.getPackageManager();
            ApplicationInfo appInfo = pm.getApplicationInfo( pkgName, PackageManager.GET_META_DATA );
            return pm.getApplicationLabel( appInfo ).toString();
        } catch ( Exception e ) {
            return null;
        }
    }

    public static boolean isAppForeground( Context context ) {
        if ( context != null ) {
            ActivityManager activityManager = ( ActivityManager ) context.getSystemService( Context.ACTIVITY_SERVICE );
            List< ActivityManager.RunningAppProcessInfo > processes = activityManager.getRunningAppProcesses();
            for ( ActivityManager.RunningAppProcessInfo processInfo : processes ) {
                if ( processInfo.processName.equals( context.getPackageName() ) ) {
                    if ( processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND ) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    public static boolean isAppForeground( Context context, String pkg ) {
        if ( context != null ) {
            ActivityManager activityManager = ( ActivityManager ) context.getSystemService( Context.ACTIVITY_SERVICE );
            List< ActivityManager.RunningAppProcessInfo > processes = activityManager.getRunningAppProcesses();
            for ( ActivityManager.RunningAppProcessInfo processInfo : processes ) {
                if ( processInfo.processName.equals( pkg ) ) {
                    if ( processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND ) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    //获取已安装应用的 uid，-1 表示未安装此应用或程序异常
    public static int getPackageUid( Context context, String packageName ) {
        try {
            ApplicationInfo applicationInfo = context.getPackageManager().getApplicationInfo( packageName, 0 );
            if ( applicationInfo != null ) {
                return applicationInfo.uid;
            }
        } catch ( Exception e ) {
            return -1;
        }
        return -1;
    }

    /**
     * 判断某一 uid 的程序是否有正在运行的进程，即是否存活
     * Created by cafeting on 2017/2/4.
     *
     * @param context 上下文
     * @param uid     已安装应用的 uid
     * @return true 表示正在运行，false 表示没有运行
     */
    public static boolean isProcessRunning( Context context, int uid ) {
        ActivityManager am = ( ActivityManager ) context.getSystemService( Context.ACTIVITY_SERVICE );
        List< ActivityManager.RunningServiceInfo > runningServiceInfos = am.getRunningServices( 200 );
        if ( runningServiceInfos.size() > 0 ) {
            for ( ActivityManager.RunningServiceInfo appProcess : runningServiceInfos ) {
                if ( uid == appProcess.uid ) {
                    return true;
                }
            }
        }
        return false;
    }
}