package com.zetcode.service;

import com.zetcode.form.FileUploadForm;

import org.jboss.logging.Logger;

import org.jboss.resteasy.annotations.providers.multipart.MultipartForm;

import javax.ws.rs.Consumes;

import javax.ws.rs.POST;

import javax.ws.rs.Path;

import javax.ws.rs.core.Response;

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.OpenOption;

import java.nio.file.Paths;

import static java.nio.file.StandardOpenOption.CREATE;

import static java.nio.file.StandardOpenOption.WRITE;

@Path("upload")

public class FileUploadService {

Logger log = Logger.getLogger(FileUploadService.class);

@POST

@Consumes("multipart/form-data")

public Response uploadFile(@MultipartForm FileUploadForm form) {

var data = form.getData();

var fileName = form.getFileName();

if (data.length == 0 || fileName.isBlank()) {

return Response.status(Response.Status.BAD_REQUEST)

.entity("form not filled correctly").build();

}

var isWritten = writeFile(form.getData(), fileName);

if (isWritten) {

var msg = String.format("File %s uploaded", fileName);

return Response.status(200).entity(msg).build();

} else {

var msg = String.format("Failed to upload %s file", fileName);

return Response.status(500).entity(msg).build();

}

}

private boolean writeFile(byte[] content, String fileName) {

var dirName = "C:/Users/Jano/Documents/tmp";

var filePath = String.format("%s/%s", dirName, fileName);

OpenOption[] options = {CREATE, WRITE};

try {

Files.write(Paths.get(filePath), content, options);

} catch (IOException e) {

log.error("failed to save file", e);

return false;

}

return true;

}

}