package safeluck.drive.evaluation.util;

import android.app.Application;
import android.content.Context;
import android.content.res.Resources;
import android.os.Environment;
import android.text.TextUtils;
import android.util.Log;

import com.anyun.exam.lib.MyLog;
import com.anyun.exam.lib.util.ByteUtil;

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;

import safeluck.drive.evaluation.bean.ExamMap;

public class FileUtil {
    private static final String TAG = "FileUtil";
    /**
     * 读取assert目录下 txt文本文件内容
     * @param context
     * @param assetFileName
     * @return
     */
    public static StringBuffer readAssetTxtFile(Context context, String assetFileName) {
        String lineTxt = null;
        StringBuffer stringBuffer = new StringBuffer();
        try {
            InputStream inputStream = null;
            try {
                inputStream = context.getAssets()
                        .open(assetFileName);
            } catch (IOException e) {
                e.printStackTrace();
            }

            InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            while((lineTxt = bufferedReader.readLine()) != null){
//                System.out.println(lineTxt);
                stringBuffer.append(lineTxt);

            }
            inputStreamReader.close();
            bufferedReader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return stringBuffer;
    }

    public static void createdirs(Context context){
        String dir = Environment.getExternalStorageDirectory().getAbsolutePath()+"/"+context.getPackageName();

        File file = new File(dir);
        if (!file.exists()){
            file.mkdir();
        }else{
            Log.i(TAG, "createdirs: 目录已经存在");
        }

    }

    public static StringBuffer readTxtFileFromSD(Context context,String fileName,boolean isRootDir){
        String lineTxt = null;
        StringBuffer stringBuffer = new StringBuffer();
        try {
            String dir = Environment.getExternalStorageDirectory().getAbsolutePath()+"/";
            InputStream inputStream = null;
            if (isRootDir){

            }else{

                dir = dir+context.getPackageName();
            }
            File file = new File(dir,fileName);
            if (!file.exists()){
                MyLog.d(TAG,dir+"目录下"+fileName+"文件不存在");
                return null;
            }
            try {
                inputStream = new FileInputStream(file);
            } catch (IOException e) {
                e.printStackTrace();
            }

            InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            while((lineTxt = bufferedReader.readLine()) != null){
                System.out.println(lineTxt);
                stringBuffer.append(lineTxt);

            }
            inputStreamReader.close();
            bufferedReader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return stringBuffer;
    }
    public static StringBuffer readMCUtFileFromSD(Context context,String fileName){
        String lineTxt = null;
        StringBuffer stringBuffer = new StringBuffer();
        try {
            String dir = Environment.getExternalStorageDirectory().getAbsolutePath()+"/";
            InputStream inputStream = null;

            File file = new File(dir,fileName);
            if (!file.exists()){
                MyLog.d(TAG,dir+"目录下"+fileName+"文件不存在");
                return null;
            }
            try {
                inputStream = new FileInputStream(file);
            } catch (IOException e) {
                e.printStackTrace();
            }

            InputStreamReader inputStreamReader = new InputStreamReader(inputStream,"GB2312");
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            while((lineTxt = bufferedReader.readLine()) != null){
//                System.out.println(   ByteUtil.byte2hex(lineTxt.getBytes("ISO-8859-1")));

                stringBuffer.append(lineTxt);

            }
            inputStreamReader.close();
            bufferedReader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return stringBuffer;
    }
    /**
     *
     * @param fromFile 源文件路径包括文件名（绝对路径）
     * @param toFile
     */
    public static void copyFile(String fromFile,String toFile){

        try {
            InputStream inputStream =new FileInputStream(fromFile);
            OutputStream outputStream = new FileOutputStream(toFile);
            byte[] bytes = new byte[1024];
            while ((inputStream.read(bytes))>0){
                outputStream.write(bytes);
            }
            inputStream.close();
            outputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    /**
     * 拷贝assert目录下的文件到 安装包目录下
     * @param context
     * @param assertfileName
     */
    public static void copyAssertFileToSD(Context context,String assertfileName){

        try {
            InputStream inputStream = null;
            try {
                inputStream = context.getAssets()
                        .open(assertfileName);
            } catch (IOException e) {
                e.printStackTrace();
            }
            deleteFile(context.getPackageName()+"/",assertfileName);

            OutputStream outputStream = new FileOutputStream(  new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/"+context.getPackageName(), assertfileName));
            byte[] bytes = new byte[1024];
            while ((inputStream.read(bytes))>0){
                outputStream.write(bytes);
            }
            outputStream.close();
            inputStream.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 删除某个文件
     * @param parentPathName 当前文件的父目录一直到根目录（不包括根目录）
     * @param fileName 文件名
     */
    public static void deleteFile(String parentPathName, String fileName){
        String dir =Environment.getExternalStorageDirectory().getAbsolutePath()+"/";
        dir = dir+parentPathName;
        MyLog.i(TAG,"删除文件"+dir+fileName);
        File file = new File(dir,fileName);
        if (file.exists()){
            file.delete();
        }
    }
    public static byte[] readLocalFile(Context context,String fileName) throws IOException {
        InputStream inputStream = null;
        String dir = Environment.getExternalStorageDirectory().getAbsolutePath()+"/";
        File file = new File(dir,fileName);
        if (!file.exists()){
            MyLog.d(TAG,dir+"目录下"+fileName+"文件不存在");
            return null;
        }
        try {
            inputStream = new FileInputStream(file);
        } catch (IOException e) {
            e.printStackTrace();
        }
        byte[] data = toByteArray(inputStream);
        inputStream.close();
        return data;
    }
    private static byte[] toByteArray(InputStream in) throws IOException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024 * 4];
        int n = 0;
        while ((n = in.read(buffer)) != -1) {
            out.write(buffer, 0, n);
        }
        return out.toByteArray();
    }


    private static final String SEP2 = "|";

    private static final String SEP3 = "=";

    private static final String SEP1 = "#";

    public static String ListToString(List<?> list) {
        StringBuffer sb = new StringBuffer();
        if (list != null && list.size() > 0) {
            for (int i = 0; i < list.size(); i++) {
                if (list.get(i) == null || list.get(i) == "") {
                    continue;
                }
                // 如果值是list类型则调用自己
                if (list.get(i) instanceof List) {
                    sb.append(ListToString((List<?>) list.get(i)));
                    sb.append(SEP1);
                } else if (list.get(i) instanceof Map) {
                    sb.append(MapToString((Map<?, ?>) list.get(i)));
                    sb.append(SEP1);
                } else {
                    sb.append(list.get(i));
                    sb.append(SEP1);
                }
            }
        }
        return "L" + sb.toString();
    }
    /**
     * Map转换String
     *
     * @param map
     *            :需要转换的Map
     * @return String转换后的字符串
     */
    public static String MapToString(Map<?, ?> map) {
        StringBuffer sb = new StringBuffer();
        // 遍历map
        for (Object obj : map.keySet()) {
            if (obj == null) {
                continue;
            }
            Object key = obj;
            Object value = map.get(key);
            if (value instanceof List<?>) {
                sb.append(key.toString() + SEP1 + ListToString((List<?>) value));
                sb.append(SEP2);
            } else if (value instanceof Map<?, ?>) {
                sb.append(key.toString() + SEP1
                        + MapToString((Map<?, ?>) value));
                sb.append(SEP2);
            } else {
                sb.append(key.toString() + SEP3 + value.toString());
                sb.append(SEP2);
            }
        }
        return "M" + sb.toString();
    }

    public static byte[] readFile(String path) {
        InputStream inputStream = null;
        File file = new File(path);
        if (!file.exists()){
            return null;
        }
        try {
            inputStream = new FileInputStream(file);
        } catch (IOException e) {
            e.printStackTrace();
        }
        byte[] data = new byte[0];
        try {
            data = toByteArray(inputStream);
        } catch (IOException e) {
            e.printStackTrace();
        }
        try {
            inputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return data;
    }
}