package com.doumee.keyCabinet.utils.update;

import android.content.Context;
import android.graphics.Bitmap;
import android.os.Build;
import android.os.Environment;
import android.util.Log;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.sql.Timestamp;
import java.text.DecimalFormat;

/**
 * 文件工具类
 * 
 * @author spring sky
 *
 */
public class FileUtil {
	/**
	 * 获取目录名称
	 * 
	 * @param url
	 * @return FileName
	 */
	public static String getFileName(String url) {
		int lastIndexStart = url.lastIndexOf("/");
		if (lastIndexStart != -1) {
			return url.substring(lastIndexStart + 1, url.length());
		} else {
			return new Timestamp(System.currentTimeMillis()).toString();
		}
	}

	/**
	 * 文件是否存在
	 * 
	 * @param path
	 * @return
	 */
	public static boolean FileIsExist(String path) {
		File file = new File(path);

		return file.exists();
	}

	/**
	 * 判断SD卡是否存在
	 * 
	 * @return boolean
	 */
	public static boolean checkSDCard() {
		if (Environment.getExternalStorageState().equals(
				Environment.MEDIA_MOUNTED)) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * 保存文件到指定目录
	 * 
	 * @param context
	 * @return 文件保存的目录
	 */
	public static String setMkdir(Context context) {
		String filePath = null;
		if (checkSDCard()) {
			filePath = Environment.getExternalStorageDirectory()
					+ File.separator + "com.ahrykj.Weddingg" + File.separator
					+ "downloads";
		} else {
			filePath = context.getCacheDir().getAbsolutePath() + File.separator
					+ "com.ahrykj.Weddingg" + File.separator + "downloads";
		}
		File file = new File(filePath);
		if (!file.exists()) {
			file.mkdirs();
			Log.e("file", "目录不存在   创建目录    ");
		} else {
			Log.e("file", "目录存在");
		}
		return filePath;
	}

	public static String getFile(Context context){
		File sdDir = null;
		boolean sdCardExist = Environment.getExternalStorageState().equals(
				Environment.MEDIA_MOUNTED);// 判断sd卡是否存在
		if (sdCardExist) {
			if (Build.VERSION.SDK_INT>=29){
				//Android10之后
				sdDir = context.getExternalFilesDir(null);
			}else {
				sdDir = Environment.getExternalStorageDirectory();// 获取SD卡根目录
			}
		} else {
			sdDir = Environment.getRootDirectory();// 获取跟目录
		}
		return sdDir.toString();
	}

	/**
	 * 获取路径
	 * 
	 * @return
	 * @throws IOException
	 */
	public static String getPath(Context context, String url) {
		String path = null;
		try {
			path = FileUtil.getFile(context) + File.separator
					+ "ticketmachine.apk";
		} catch (Exception e) {
			e.printStackTrace();
		}
		return path;
	}

	public static long getFileSize(File f) throws Exception// 取得文件夹大小
	{
		long size = 0;
		File flist[] = f.listFiles();
		if (flist != null) {
			for (int i = 0; i < flist.length; i++) {
				if (flist[i].isDirectory()) {
					size = size + getFileSize(flist[i]);
				} else {
					size = size + flist[i].length();
				}
			}
		}
		return size;
	}

	/**
	 * 获取文件的大小
	 * 
	 * @param fileS
	 *            文件的大小
	 * @return
	 */
	public static String FormetFileSize(long fileS) {// 转换文件大小
		DecimalFormat df = new DecimalFormat("0.0");// #.00
		String fileSizeString = "";
		if (fileS < 1024) {
			if (fileS < 70) {
				fileSizeString = "0B";
			} else {
				fileSizeString = df.format((double) fileS) + "B";
			}
		} else if (fileS < 1048576) {
			fileSizeString = df.format((double) fileS / 1024) + "K";
		} else if (fileS < 1073741824) {
			fileSizeString = df.format((double) fileS / 1048576) + "M";
		} else {
			fileSizeString = df.format((double) fileS / 1073741824) + "G";
		}
		return fileSizeString;
	}

	/**
	 * 删除该目录下的指定文件
	 * 
	 * @param filePath
	 *            文件目录
	 * @param fileName
	 *            文件名
	 * @return
	 */
	public static boolean deleteFile(String filePath, String fileName) {
		if (FileIsExist(filePath + fileName)) {
			File file = new File(filePath + fileName);

			return file.delete();
		}

		return true;
	}

	/**
	 * 删除该路径指定的文件
	 * 
	 * @param path
	 *            文件路径
	 * @return
	 */
	public static boolean deleteFile(String path) {
		if (FileIsExist(path)) {
			File file = new File(path);
			return file.delete();
		}
		return true;
	}

	/**
	 * 删除方法 这里只会删除某个文件夹下的文件，如果传入的directory是个文件，将不做处理
	 * 
	 * @param file
	 */

	public static void deleteFilesByDirectory(File file) {
		if (file.isFile()) {
			file.delete();
			return;
		}

		if (file.isDirectory()) {
			File[] childFiles = file.listFiles();
			if (childFiles == null || childFiles.length == 0) {
				file.delete();
				return;
			}

			for (int i = 0; i < childFiles.length; i++) {
				deleteFilesByDirectory(childFiles[i]);
			}
			file.delete();
		}
	}

	//将Bitmap转换成File
	public static File saveBitmapFile(Bitmap bitmap){
		File file=new File("/sdcard/face.jpg");//将要保存图片的路径
		try {
			BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(file));
			bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos);
			bos.flush();
			bos.close();
		} catch (IOException e) {
			return null;
		}
		return file;
	}
}