package com.llgc;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;

import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
/*
import org.glassfish.jersey.media.multipart.FormDataContentDisposition;
import org.glassfish.jersey.media.multipart.FormDataParam;
*/
import org.json.JSONException;
import org.json.JSONObject;

@Path("/euro")
public class Serveur {
  // Ici, le path est cumulatif avec le "/euro".
  // On fait donc bien référence au chemin "/euro/{f}" avec {f} : un nombre
  // flottant
  @Path("{f}")
  // Méthode GET
  @GET
  // Mime Type en sortie
  @Produces(MediaType.APPLICATION_XML)
  // Mime Type en entrée
  @Consumes(MediaType.APPLICATION_XML)
  // On dit que le f est extrait du path et que c'est un double.
  public String traitementXml(@PathParam("f") Double f) {
    return "<conversion><euros>" + f / 6.65 + "</euros><francs>" + f + "</francs></conversion>";
  }

  @Path("{f}")
  @GET
  @Produces(MediaType.APPLICATION_JSON)
  @Consumes(MediaType.APPLICATION_JSON)
  public String traitementJson(@PathParam("f") Double f) throws JSONException {
    JSONObject jsonObject = new JSONObject();
    jsonObject.put("Francs", f);
    jsonObject.put("Euros", f / 6.65);
    return jsonObject.toString();
  }

  @Path("{f}")
  @GET
  @Produces(MediaType.TEXT_HTML)
  @Consumes(MediaType.TEXT_HTML)
  public String traitementPlainHtml(@PathParam("f") Double f) throws JSONException {
    JSONObject jsonObject = new JSONObject();
    jsonObject.put("FrancsHMTLHTMLHTML", f);
    jsonObject.put("Euris", f / 6.65);
    return jsonObject.toString();
  }

  @GET
  @Path("/down")
  @Produces("image/png")
  // Le client veut télécharger
  public Response download() {
    File file = new File("image.png");
    ResponseBuilder response = Response.ok((Object) file);
    response.header("Content-Disposition", "attachment; filename=test.png");
    return response.build();
  }

  @Path("/upload")
  @POST
  @Consumes(MediaType.MULTIPART_FORM_DATA)
  // Le client veut uploader
  public Response upload(@FormDataParam("file") InputStream uploadedInputStream,
      @FormDataParam("file") FormDataContentDisposition fileDetail) {
    String uploadedFileLocation = "./" + "Jersey_" + fileDetail.getFileName();
    saveToFile(uploadedInputStream, uploadedFileLocation);
    String output = "File uploaded via Jersey based RESTFul Webservice to: " + uploadedFileLocation;
    return Response.status(200).entity(output).build();
  }

  private void saveToFile(InputStream uploadedInputStream, String uploadedFileLocation) {
    try {
      OutputStream out = null;
      int read = 0;
      byte[] bytes = new byte[1024];
      out = new FileOutputStream(new File(uploadedFileLocation));
      while ((read = uploadedInputStream.read(bytes)) != -1) {
        out.write(bytes, 0, read);
      }
      out.flush();
      out.close();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}