/*
 * Copyright 2014 Tagbangers, Inc.
 *
 * Licensed 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.wallride.support;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.springframework.core.io.Resource;
import org.springframework.core.io.WritableResource;
import org.springframework.util.ResourceUtils;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;

public abstract class ExtendedResourceUtils extends ResourceUtils {

//	public static Resource createRelative(Resource resource, String relativePath, ResourceLoader resourceLoader) throws IOException {
//		return resourceLoader.getResource(resource.getURI().toString() + relativePath);
//	}

	public static void write(Resource resource, File file) throws IOException {
		if (resource instanceof WritableResource) {
//			IOUtils.copy(new FileInputStream(file), ((WritableResource) resource).getOutputStream());
			try (InputStream input = new FileInputStream(file); OutputStream output = ((WritableResource) resource).getOutputStream()) {
				IOUtils.copy(input, output);
			}
			return;
		}
		FileUtils.copyFile(file, getFile(resource.getURI()));
	}

	public static void write(Resource resource, MultipartFile file) throws IOException {
		if (resource instanceof WritableResource) {
//			IOUtils.copy(file.getInputStream(), ((WritableResource) resource).getOutputStream());
			try (InputStream input = file.getInputStream(); OutputStream output = ((WritableResource) resource).getOutputStream()) {
				IOUtils.copy(input, output);
			}
			return;
		}
		FileUtils.copyInputStreamToFile(file.getInputStream(), getFile(resource.getURI()));
	}
}