package com.basic.project.idcardservice.idcard;
import android.os.Environment;
import android.os.StatFs;
import android.util.Log;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
/**
 * Created by Administrator on 2018/7/25.
 */
public class FileUtils {
    public static boolean isSDCardState() {
        return Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED);
    }
    public static boolean isFileExist(String fileName) {
        File file = new File("绝对路径" + fileName);
        return file.exists();
    }
    public static boolean createFolder(String path) {
        File file = new File(path);
        return file.mkdir();
    }
    public static boolean createFile(String path, String fileName) {
        File file = new File(path + File.separator + fileName);
        if (file.exists()) {
            return false;
        } else {
            try {
                return file.createNewFile();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return false;
    }
    public static boolean deleteFile(String path, String fileName) {
        File file = new File(path + File.separator + fileName);
        return file.exists() && file.delete();
    }
    public static boolean deleteDirection(File dir) {
        if (dir == null || !dir.exists() || dir.isFile()) {
            return false;
        }
        for (File file : dir.listFiles()) {
            if (file.isFile()) {
                file.delete();
            } else if (file.isDirectory()) {
                deleteDirection(file);
            }
        }
        dir.delete();
        return true;
    }
    public static void writeFile(String text, String fileStr, boolean isAppend) {
        try {
            File file = new File(fileStr);
            File parentFile = file.getParentFile();
            if (!parentFile.exists()) {
                parentFile.mkdirs();
            }
            if (!file.exists()) {
                file.createNewFile();
            }
            FileOutputStream f = new FileOutputStream(fileStr, isAppend);
            f.write(text.getBytes());
            f.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static boolean copyFile(String srcPath, String destDir) {
        boolean flag = false;
        File srcFile = new File(srcPath);
        if (!srcFile.exists()) {
            Log.i("FileUtils is copyFile：", "源文件不存在");
            return false;
        }
        String fileName = srcPath.substring(srcPath.lastIndexOf(File.separator));
        String destPath = destDir + fileName;
        if (destPath.equals(srcPath)) {
            Log.i("FileUtils is copyFile：", "源文件路径和目标文件路径重复");
            return false;
        }
        File destFile = new File(destPath);
        if (destFile.exists() && destFile.isFile()) {
            Log.i("FileUtils is copyFile：", "该路径下已经有一个同名文件");
            return false;
        }
        File destFileDir = new File(destDir);
        destFileDir.mkdirs();
        try {
            FileInputStream fis = new FileInputStream(srcPath);
            FileOutputStream fos = new FileOutputStream(destFile);
            byte[] buf = new byte[1024];
            int c;
            while ((c = fis.read(buf)) != -1) {
                fos.write(buf, 0, c);
            }
            fis.close();
            fos.close();
            flag = true;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return flag;
    }
    public static boolean renameTo(String oldPath, String newPath) {
        if (oldPath.equals(newPath)) {
            Log.i("FileUtils is renameTo：", "文件重命名失败：新旧文件名绝对路径相同");
            return false;
        }
        File oldFile = new File(oldPath);
        File newFile = new File(newPath);
        return oldFile.renameTo(newFile);
    }
    public static long getFileSize(String path) {
        File file = new File(path);
        return file.length();
    }
    public static double getDirSize(File file) {
        if (file.exists()) {
            if (file.isDirectory()) {
                File[] children = file.listFiles();
                double size = 0;
                for (File f : children)
                    size += getDirSize(f);
                return size;
            } else {
                return (double) file.length() / 1024 / 1024;
            }
        } else {
            return 0.0;
        }
    }
    public static File[] getFileList(String path) {
        File file = new File(path);
        if (file.isDirectory()) {
            File[] files = file.listFiles();
            if (files != null) {
                return files;
            } else {
                return null;
            }
        } else {
            return null;
        }
    }
    public static int getFileCount(String path) {
        File directory = new File(path);
        File[] files = directory.listFiles();
        return files.length;
    }
    public long getSDCardTotal(String path) {
        if (null != path && path.equals("")) {
            StatFs statfs = new StatFs(path);
            long totalBlocks = statfs.getBlockCount();
            long blockSize = statfs.getBlockSize();
            return totalBlocks * blockSize / 1024 / 1024;
        } else {
            return 0;
        }
    }
    public long getSDCardFree(String path) {
        if (null != path && path.equals("")) {
            StatFs statfs = new StatFs(path);
            long availaBlocks = statfs.getAvailableBlocks();
            long blockSize = statfs.getBlockSize();
            return availaBlocks * blockSize / 1024 / 1024;
        } else {
            return 0;
        }
    }
}