package com.example.myapplication.utils;

import android.os.Environment;

import java.io.File;
import java.io.IOException;

public class FileUtils {
    public static boolean checkSdCard() {
        if (Environment.getExternalStorageState().equals(
                Environment.MEDIA_MOUNTED)) {
            return true;
        } else {
            return false;
        }
    }

    public static void deleteFile(String path) {
        File file = new File(path);
        if (!file.isDirectory() && file.exists()) {
            file.delete();
        }
    }

    public static File updateDir = null;
    public static File updateFile = null;
    /***********
     * 保存升级APK的目录
     ***********/
    public static final String SD_SAVE_DIR = "butler";

    public static boolean isCreateFileSucess;

    public static void createDownFile() {
        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
            isCreateFileSucess = true;
            updateDir = new File(Environment.getExternalStorageDirectory() + File.separator + SD_SAVE_DIR + File.separator);
            updateFile = new File(updateDir + "/" + SD_SAVE_DIR + ".apk");
            if (!updateDir.exists()) {
                updateDir.mkdirs();
            }
            if (!updateFile.exists()) {
                try {
                    updateFile.createNewFile();
                } catch (IOException e) {
                    isCreateFileSucess = false;
                    e.printStackTrace();
                }
            }

        } else {
            isCreateFileSucess = false;
        }
    }

    public static void deleteDownFile() {
        if (updateFile != null && updateDir.exists()) {
            updateDir.delete();
        }
    }
}