package com.android.download;

import android.content.Context;

import com.android.util.FileUtil;
import com.android.util.LogUtils;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.RandomAccessFile;
import java.net.HttpURLConnection;
import java.net.URL;

public class DownloadAppTask extends Thread{
    public static int threadCount = 3;
    public static int runningThread = 3;
    private String downurl;
    private Context mContext;
    /**存储路径*/
    private String FILEPATH_STORAGE;

    /**临时文件名称*/
    public static String FILENAME_TMP="Nebula-app.bak";
    /**正是文件名称*/
    private static String FILENAME_APK="Nebula-app.apk";
    private DownLoadAppListener mDownLoadAppListener;
    private long startIndex = 0;
    private long totalSize = 0;

    public DownloadAppTask(Context context,String versionCode,String url,long fileSize,DownLoadAppListener downLoadAppListener){
        mContext = context;
        this.downurl = url;
        this.totalSize = fileSize;
        this.mDownLoadAppListener = downLoadAppListener;
        this.FILEPATH_STORAGE = FileUtil.getBakPath(mContext,1) ;
        FILENAME_APK=versionCode+"-"+FILENAME_APK;
    }

    @Override
    public void run() {
        super.run();

            try {


                File tempfile =new File(FILEPATH_STORAGE,FILENAME_TMP);

                if(tempfile.exists()){
                    startIndex = tempfile.length();
                }else {
                    tempfile.createNewFile();
                }

                HttpURLConnection urlConnection;
                URL url = new URL(downurl);
//                URL url = new URL(" https://ik-cos-1258208609.cos.ap-guangzhou.myqcloud.com/Chrome.apk");

                urlConnection = (HttpURLConnection) url.openConnection();
                urlConnection.setConnectTimeout(2000*10);      //设置连接超时事件为5秒
                urlConnection.setRequestMethod("GET");      //设置请求方式为GET
                //设置用户端可以接收的媒体类型
                urlConnection.setRequestProperty("Accept", "image/gif, image/jpeg, image/pjpeg, " +
                        "image/pjpeg, application/x-shockwave-flash, application/xaml+xml, " +
                        "application/vnd.ms-xpsdocument, application/x-ms-xbap," +
                        " application/x-ms-application, application/vnd.ms-excel," +
                        " application/vnd.ms-powerpoint, application/msword, */*");

                urlConnection.setRequestProperty("Accept-Language", "zh-CN");  //设置用户语言
                urlConnection.setRequestProperty("Charset", "UTF-8");    //设置客户端编码
                //设置用户代理
                urlConnection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 8.0; " +
                        "Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727;" +
                        " .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)");
                //设置下载位置
                urlConnection.setRequestProperty("Range", "bytes=" + startIndex + "-" + (totalSize-1));
                LogUtils.loge("totalSize:"+totalSize+"");
                LogUtils.loge("getResponseCode:"+urlConnection.getResponseCode()+"");
                InputStream in = urlConnection.getInputStream();
                    RandomAccessFile raf = new RandomAccessFile(tempfile.getPath(), "rwd");
                    raf.seek(startIndex);
                    int len = 0;
                    int progress=0;
                    byte buf[] =new byte[1024];
                    while((len = in.read(buf))!=-1){
                        raf.write(buf, 0, len);
                        progress+=len;
                        LogUtils.loge("downlaod progress:"+progress);
                    }
                    in.close();
                    raf.close();


                    File apkFile = new File(FILEPATH_STORAGE,FILENAME_APK);
                LogUtils.loge("downlaod:"+tempfile.length());
                if(tempfile.length()==totalSize){
                    tempfile.renameTo(apkFile);
                    tempfile.delete();
                    //下载完成
                    if(mDownLoadAppListener!=null){
                        mDownLoadAppListener.onDowanlaodResult(0,apkFile.getPath());
                    }


                }else {
                    if(mDownLoadAppListener!=null){
                        mDownLoadAppListener.onDowanlaodResult(-1,null);
                    }
                }

            } catch (Exception e) {
                e.printStackTrace();
                if(mDownLoadAppListener!=null){
                    mDownLoadAppListener.onDowanlaodResult(-1,null);
                }
            }




    }



//    public boolean executeAppInstall(String apkPath){
//        boolean result = false;
//        try {
//            Runtime.getRuntime().exec("su");
//            String command = "pm install -r " + apkPath + "\n";
//            Process  process = Runtime.getRuntime().exec(command);
//            BufferedReader errorStream = new BufferedReader(new InputStreamReader(process.getErrorStream()));
//            String msg = "";
//            String line;
//            while ((line = errorStream.readLine()) != null) {
//                msg += line;
//            }
//            if (!msg.contains("Failure")) {
//                result = true;
//            }
//
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
//        return result;
//    }





    public interface DownLoadAppListener{
        public void onDowanlaodResult(int status,String filePath);
    }




}