/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  package org.apache.myfaces.tobago.example.demo;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.enterprise.context.SessionScoped;
  import javax.faces.application.FacesMessage;
  import javax.faces.context.FacesContext;
  import javax.faces.event.AjaxBehaviorEvent;
  import javax.inject.Named;
  import javax.servlet.http.Part;
  import java.io.Serializable;
  import java.lang.invoke.MethodHandles;
  import java.util.ArrayList;
  import java.util.List;
  
  @SessionScoped
  @Named
  public class UploadController implements Serializable {
  
    private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
    private Part fileBasic;
    private Part fileContentType;
    private Part[] fileMulti;
    private Part fileAjax;
    private List<UploadItem> uploadItems = new ArrayList<>();
  
    public String uploadBasic() {
      upload(fileBasic);
      return null;
    }
  
    public String uploadContentType() {
      upload(fileContentType);
      return null;
    }
  
    public String uploadMulti() {
      for (final Part part : fileMulti) {
        upload(part);
      }
      return null;
    }
  
    public void uploadAjax(final AjaxBehaviorEvent event) {
      upload(fileAjax);
    }
  
    private void upload(final Part part) {
      LOG.info("checking file item");
      if (part == null || part.getSize() == 0) {
        return;
      }
      LOG.info("type=" + part.getContentType());
      LOG.info("size=" + part.getSize());
      LOG.info("cd = " + part.getHeader("Content-Disposition"));
      final String submittedFileName = part.getSubmittedFileName();
      LOG.info("name=" + submittedFileName);
      uploadItems.add(new UploadItem(submittedFileName, part.getSize(), part.getContentType()));
      FacesContext.getCurrentInstance().addMessage(
              null, new FacesMessage(FacesMessage.SEVERITY_INFO, "File was uploaded: " + submittedFileName, null));
    }
  
    public Part getFileBasic() {
      return fileBasic;
    }
  
    public void setFileBasic(final Part fileBasic) {
      this.fileBasic = fileBasic;
    }
  
    public Part getFileContentType() {
      return fileContentType;
    }
  
    public void setFileContentType(final Part fileContentType) {
      this.fileContentType = fileContentType;
    }
  
   public Part[] getFileMulti() {
     return fileMulti;
   }
 
   public void setFileMulti(final Part[] fileMulti) {
     this.fileMulti = fileMulti;
   }
 
   public Part getFileAjax() {
     return fileAjax;
   }
 
   public void setFileAjax(final Part fileAjax) {
     this.fileAjax = fileAjax;
   }
 
   public List<UploadItem> getUploadItems() {
     return uploadItems;
   }
 }