package cn.hotapk.fastandrutils.utils;

import android.app.ActivityManager;
import android.app.ActivityManager.RunningServiceInfo;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.text.TextUtils;

import java.security.MessageDigest;
import java.util.List;

/**
 * @author laijian
 * @version 2017/9/20
 * @Copyright (C)下午4:06 , www.hotapk.cn
 * app相关信息
 */
public final class FAppUtils {
    private FAppUtils() {

    }

    /**
     * 获取App包名
     *
     * @return App包名
     */
    public static String getAppPackageName() {
        return FUtils.getAppContext().getPackageName();
    }

    /**
     * 获取App名称
     *
     * @return App名称
     */
    public static String getAppName() {
        return getAppName(getAppPackageName());
    }

    /**
     * 获取App名称
     *
     * @param packageName 包名
     * @return App名称
     */
    public static String getAppName(final String packageName) {
        if (TextUtils.isEmpty(packageName)) return null;
        try {
            PackageManager pm = FUtils.getAppContext().getPackageManager();
            PackageInfo pi = pm.getPackageInfo(packageName, 0);
            return pi == null ? null : pi.applicationInfo.loadLabel(pm).toString();
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 得到软件版本号
     *
     * @return 当前版本Code
     */
    public static int getVerCode() {
        int verCode = -1;
        try {
            String packageName = FUtils.getAppContext().getPackageName();
            verCode = FUtils.getAppContext().getPackageManager().getPackageInfo(packageName, 0).versionCode;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return verCode;
    }

    /**
     * 得到软件显示版本信息
     *
     * @return 当前版本信息
     */
    public static String getVerName() {
        String verName = "";
        try {
            String packageName = FUtils.getAppContext().getPackageName();
            verName = FUtils.getAppContext().getPackageManager().getPackageInfo(packageName, 0).versionName;
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return verName;
    }

    /**
     * 获取应用签名
     *
     * @param pkgName 包名
     */
    public static String getSign(String pkgName) {
        try {
            PackageInfo pis = FUtils.getAppContext().getPackageManager().getPackageInfo(
                    pkgName, PackageManager.GET_SIGNATURES);
            return hexdigest(pis.signatures[0].toByteArray());
        } catch (NameNotFoundException e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * 将签名字符串转换成需要的32位签名
     *
     * @param paramArrayOfByte 签名byte数组
     * @return 32位签名字符串
     */
    private static String hexdigest(byte[] paramArrayOfByte) {
        final char[] hexDigits = {48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 97,
                98, 99, 100, 101, 102};
        try {
            MessageDigest localMessageDigest = MessageDigest.getInstance("MD5");
            localMessageDigest.update(paramArrayOfByte);
            byte[] arrayOfByte = localMessageDigest.digest();
            char[] arrayOfChar = new char[32];
            for (int i = 0, j = 0; ; i++, j++) {
                if (i >= 16) {
                    return new String(arrayOfChar);
                }
                int k = arrayOfByte[i];
                arrayOfChar[j] = hexDigits[(0xF & k >>> 4)];
                arrayOfChar[++j] = hexDigits[(k & 0xF)];
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }


    /**
     * 安装apk
     *
     * @param file APK文件uri
     */
    public static void installApk(Uri file) {
        Intent intent = new Intent();
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setAction(Intent.ACTION_VIEW);
        intent.setDataAndType(file, "application/vnd.android.package-archive");
        FUtils.getAppContext().startActivity(intent);
    }

    /**
     * 卸载apk
     *
     * @param packageName 包名
     */
    public static void uninstallApk(String packageName) {
        Intent intent = new Intent(Intent.ACTION_DELETE);
        Uri packageURI = Uri.parse("package:" + packageName);
        intent.setData(packageURI);
        FUtils.getAppContext().startActivity(intent);
    }

    /**
     * 检测服务是否运行
     *
     * @param className 类名
     * @return 是否运行的状态
     */
    public static boolean isServiceRunning(String className) {
        boolean isRunning = false;
        ActivityManager activityManager = (ActivityManager) FUtils.getAppContext()
                .getSystemService(Context.ACTIVITY_SERVICE);
        List<RunningServiceInfo> servicesList = activityManager
                .getRunningServices(Integer.MAX_VALUE);
        for (RunningServiceInfo si : servicesList) {
            if (className.equals(si.service.getClassName())) {
                isRunning = true;
            }
        }
        return isRunning;
    }

    /**
     * 停止运行服务
     *
     * @param context   上下文
     * @param className 类名
     * @return 是否执行成功
     */
    public static boolean stopRunningService(Context context, String className) {
        Intent intent_service = null;
        boolean ret = false;
        try {
            intent_service = new Intent(context, Class.forName(className));
        } catch (Exception e) {
            e.printStackTrace();
        }
        if (intent_service != null) {
            ret = context.stopService(intent_service);
        }
        return ret;
    }

}