package cn.huge.module.file.utils;


import cn.huge.base.common.constant.FileConsts;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Base64;

/**
 * @author liyj
 */
public class FileUtils {

    /**
     * 校验文件格式
     *
     * @param fileSuffix
     * @return
     */
    public static Boolean checkFileSuffix(String fileSuffix){
        if(FileConsts._doc.equalsIgnoreCase(fileSuffix) || FileConsts._docx.equalsIgnoreCase(fileSuffix) ||
                FileConsts._jpeg.equalsIgnoreCase(fileSuffix) || FileConsts._jpg.equalsIgnoreCase(fileSuffix) || FileConsts._png.equalsIgnoreCase(fileSuffix) || FileConsts._bmp.equalsIgnoreCase(fileSuffix) ||
                FileConsts._pdf.equalsIgnoreCase(fileSuffix) || FileConsts._mp4.equalsIgnoreCase(fileSuffix) || FileConsts._mp3.equalsIgnoreCase(fileSuffix) || FileConsts._avi.equalsIgnoreCase(fileSuffix)
                || FileConsts._xlsx.equalsIgnoreCase(fileSuffix) || FileConsts._xls.equalsIgnoreCase(fileSuffix)){
            return true;
        }else {
            return false;
        }
        // 不做限制
//        return true;
    }

    public static Boolean checkImageSuffix(String fileSuffix){
        if(FileConsts._jpeg.equalsIgnoreCase(fileSuffix) || FileConsts._jpg.equalsIgnoreCase(fileSuffix) ||
                FileConsts._png.equalsIgnoreCase(fileSuffix) || FileConsts._bmp.equalsIgnoreCase(fileSuffix) ||
                FileConsts._gif.equalsIgnoreCase(fileSuffix)){
            return true;
        }else {
            return false;
        }
    }
    public static String convertToBase64(InputStream inputStream) throws IOException {
        try (ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream()) {
            byte[] buffer = new byte[1024];
            int bytesRead;
            while ((bytesRead = inputStream.read(buffer)) != -1) {
                byteArrayOutputStream.write(buffer, 0, bytesRead);
            }

            // 获取字节数组
            byte[] fileBytes = byteArrayOutputStream.toByteArray();

            // 将字节数组转换为Base64字符串
            return Base64.getEncoder().encodeToString(fileBytes);
        }
    }

}