package com.juju.droidSpy;


import android.app.*;
import android.os.*;
import android.view.*;
import android.widget.*;

import java.util.*;
import java.io.*;

import android.content.*;
import android.content.res.Resources;
import android.net.Uri;
public class MainActivity extends ListActivity
{
    private MONOAdapter monoAdapter;
    private static final String ROOT_PATH = "/sdcard/";
    private String Current_Path;
    //存储文件名称
    private ArrayList<String> names = null;
    //存储文件路径
    private ArrayList<String> paths = null;
    private View view;
    private EditText editText;
    File assets;
    private ProgressDialog pdialog;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        monoAdapter=new MONOAdapter();
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //显示文件列表
        showFileDir(ROOT_PATH);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        MenuInflater menuinflater=getMenuInflater();
        menuinflater.inflate(R.menu.main_menu,menu);
        // TODO: Implement this method
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        assets= getDir("libmono",MODE_PRIVATE);
        switch(item.getItemId())
        {
            case R.id.main_menuitem1://初始化运行环境
                pdialog=new ProgressDialog(this);
                pdialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                pdialog.setTitle("初始化运行环境...");
                pdialog.setMessage("正在解压文件(约需要2分钟)...");
                pdialog.setCancelable(false);
                pdialog.show();
                new Thread(new Runnable(){
                    @Override
                    public void run(){
                        try{
                            FileAdapter.copyFilesFassets(getApplicationContext(),"libmono",assets.getAbsolutePath());
                            MONOAdapter.runCmd("chmod 777 "+assets.getAbsolutePath()+File.separator+"init_env.sh");
                            String s2=MONOAdapter.runCmd("sh "+assets.getAbsolutePath()+File.separator+"init_env.sh");
                            Message msg=new Message();
                            msg.obj=s2;
                            //msg.what=123;
                            myhandler.sendMessage(msg);
                        }
                        catch(Exception e){
                            e.printStackTrace();
                        }
                    }
                }).start();
                break;
            case R.id.main_menuitem2:
                finish();break;
            case R.id.main_menuitem3:
                showFileDir(Current_Path);break;
        }
        // TODO: Implement this method
        return super.onOptionsItemSelected(item);
    }

    boolean isExit;
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event)
    {
        // TODO: Implement this method
        if(keyCode==KeyEvent.KEYCODE_BACK)//是否是返回键
        {
            if(!Current_Path.equals("/"))//不是最高目录,返回上级文件夹
            {
                showFileDir(new File(Current_Path).getParent());
            }
            else{
                if(!isExit)//第一次按下返回键,提示退出
                {
                    isExit=true;
                    displayToast("再按一次返回键退出");
                    mhander.sendEmptyMessageDelayed(0,2000);
                }
                else//第二次按下返回键
                {
                    finish();
                }
            }
            return false;
        }
        else
            return super.onKeyDown(keyCode, event);
    }

    Handler mhander=new Handler(){

        @Override
        public void handleMessage(Message msg)
        {
            // TODO: Implement this method
            super.handleMessage(msg);
            isExit=false;
        }
    };

    Handler myhandler=new Handler(){

        @Override
        public void handleMessage(Message msg)
        {
            // TODO: Implement this method
            super.handleMessage(msg);
            pdialog.dismiss();
            new AlertDialog.Builder(MainActivity.this).setTitle("运行结果")
                .setMessage((String)msg.obj)
                .setPositiveButton("确定",new DialogInterface.OnClickListener(){
                    public void onClick(DialogInterface p1,int p2){}
                }).show();
        }
    };

    public static void orderByName(File[] f)
    {
        List<File> files=Arrays.asList(f);
        Collections.sort(files,new Comparator<File>(){
                @Override
                public int compare(File o1,File o2){
                    if(o1.isDirectory()&&o2.isFile()){
                        return -1;
                    }
                    if(o1.isFile()&&o2.isDirectory())return 1;
                    return o1.getName().toLowerCase().compareTo(o2.getName().toLowerCase());
                }
            });
    }

    private void showFileDir(String path){
        Current_Path=path;
        names = new ArrayList<String>();
        paths = new ArrayList<String>();
        File file = new File(path);
        File[] files = file.listFiles();
        orderByName(files);
        //如果当前目录不是根目录
        if (!ROOT_PATH.equals(path)){
            names.add("@1");
            paths.add(ROOT_PATH);
            names.add("@2");
            paths.add(file.getParent());
        }
        //添加所有文件
        for (File f : files){
            names.add(f.getName());
            paths.add(f.getPath());
        }
        this.setListAdapter(new MyAdapter(this,names,paths));
    }
    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        String path = paths.get(position);
        File file = new File(path);
        // 文件存在并可读
        if (file.exists() && file.canRead()){
            if (file.isDirectory()){
                //显示子目录及文件
                showFileDir(path);
            }
            else{
                //处理文件
                fileHandle(file);
            }
        }
        //没有权限
        else{
            Resources res = getResources();
            new AlertDialog.Builder(this).setTitle("Message")
                .setMessage(res.getString(R.string.no_permission))
                .setPositiveButton("OK",new AlertDialog.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                    }
                }).show();
        }
        super.onListItemClick(l, v, position, id);
    }
    //对文件进行增删改
    private void fileHandle(final File file){
        DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                // 打开文件
                if (which == 0){
                    openFile(file);
                }
                //修改文件名
                else if(which == 1){
                    LayoutInflater factory = LayoutInflater.from(MainActivity.this);
                    view = factory.inflate(R.layout.rename_dialog, null);
                    editText = (EditText)view.findViewById(R.id.editText);
                    editText.setText(file.getName());
                    DialogInterface.OnClickListener listener2 = new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            // TODO Auto-generated method stub
                            String modifyName = editText.getText().toString();
                            final String fpath = file.getParentFile().getPath();
                            final File newFile = new File(fpath + "/" + modifyName);
                            if (newFile.exists()){
                                //排除没有修改情况
                                if (!modifyName.equals(file.getName())){
                                    new AlertDialog.Builder(MainActivity.this)
                                        .setTitle("注意!")
                                        .setMessage("文件名已存在，是否覆盖？")
                                        .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                                            @Override
                                            public void onClick(DialogInterface dialog, int which) {
                                                if (file.renameTo(newFile)){
                                                    showFileDir(fpath);
                                                    displayToast("重命名成功！");
                                                }
                                                else{
                                                    displayToast("重命名失败！");
                                                }
                                            }
                                        })
                                        .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                                            @Override
                                            public void onClick(DialogInterface dialog, int which) {
                                            }
                                        })
                                        .show();
                                }
                            }
                            else{
                                if (file.renameTo(newFile)){
                                    showFileDir(fpath);
                                    displayToast("重命名成功！");
                                }
                                else{
                                    displayToast("重命名失败！");
                                }
                            }
                        }
                    };
                    AlertDialog renameDialog = new AlertDialog.Builder(MainActivity.this).create();
                    renameDialog.setView(view);
                    renameDialog.setButton("确定", listener2);
                    renameDialog.setButton2("取消", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                // TODO Auto-generated method stub
                            }
                        });
                    renameDialog.show();
                }
                //删除文件
                else if(which==2){
                    new AlertDialog.Builder(MainActivity.this)
                        .setTitle("注意!")
                        .setMessage("确定要删除此文件吗？")
                        .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                if(file.delete()){
                                    //更新文件列表
                                    showFileDir(file.getParent());
                                    displayToast("删除成功！");
                                }
                                else{
                                    displayToast("删除失败！");
                                }
                            }
                        })
                        .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                            }
                        }).show();
                }
                //反编译Assembly
                else
                {
                    if(file.getName().endsWith(".exe")||file.getName().endsWith(".dll"))
                    {
                        pdialog=new ProgressDialog(MainActivity.this);
                        pdialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                        pdialog.setTitle("正在反编译...");
                        pdialog.setMessage("请耐心等待...");
                        pdialog.setCancelable(false);
                        pdialog.show();
                        new Thread(new Runnable(){
                            @Override
                            public void run(){
                                try{
                                    String s= monoAdapter.Decompiler(file,MainActivity.this);
                                    Message msg=new Message();
                                    msg.obj=s;
                                    //msg.what=123;
                                    myhandler.sendMessage(msg);
                                }
                                catch(Exception e){
                                    e.printStackTrace();
                                }
                            }
                        }).start();


                    }
                    else
                    {
                        Toast.makeText(getApplicationContext(),"Wrong Format!",Toast.LENGTH_LONG).show();
                    }
                }
            }
        };
        //选择文件时，弹出增删该操作选项对话框
        String[] menu = {"打开文件","重命名","删除文件",".NET反编译该Assembly"};
        new AlertDialog.Builder(MainActivity.this)
            .setTitle("请选择要进行的操作!")
            .setItems(menu, listener)
            .setPositiveButton("取消", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                }
            }).show();
    }
    //打开文件
    private void openFile(File file){
        Intent intent = new Intent();
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setAction(android.content.Intent.ACTION_VIEW);
        String type = getMIMEType(file);
        intent.setDataAndType(Uri.fromFile(file), type);
        startActivity(intent);
    }
    //获取文件mimetype
    private String getMIMEType(File file){
        String type = "";
        String name = file.getName();
        //文件扩展名
        String end = name.substring(name.lastIndexOf(".") + 1, name.length()).toLowerCase();
        if (end.equals("m4a") || end.equals("mp3") || end.equals("wav")){
            type = "audio";
        }
        else if(end.equals("mp4") || end.equals("3gp")) {
            type = "video";
        }
        else if (end.equals("jpg") || end.equals("png") || end.equals("jpeg") || end.equals("bmp") || end.equals("gif")){
            type = "image";
        }
        else {
            //如果无法直接打开，跳出列表由用户选择
            type = "*";
        }
        type += "/*";
        return type;
    }
    private void displayToast(String message){
        Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show();
    }
}