/***
 * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
 * All rights reserved.
 *
 * 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 br.com.caelum.vraptor.view;

import br.com.caelum.vraptor.http.FormatResolver;
import br.com.caelum.vraptor.ioc.RequestScoped;
import br.com.caelum.vraptor.resource.ResourceMethod;

/**
 * The default vraptor3 path resolver uses the type and method name as
 * "/typeName/methodName.jsp".
 *
 * @author Guilherme Silveira
 * @author Sérgio Lopes
 * @author Jonas Abreu
 */
@RequestScoped
public class DefaultPathResolver implements PathResolver {

	private final FormatResolver resolver;

	public DefaultPathResolver(FormatResolver resolver) {
		this.resolver = resolver;
	}

	public String pathFor(ResourceMethod method) {
		String format = resolver.getAcceptFormat();

		String suffix = "";
		if (format != null && !format.equals("html")) {
			suffix = '.' + format;
		}
	String name = method.getResource().getType().getSimpleName();
	String folderName = extractControllerFromName(name);
		return getPrefix() + folderName + '/' + method.getMethod().getName() + suffix
				+ '.' +getExtension();
	}

	protected String getPrefix() {
		return "/WEB-INF/jsp/";
	}

	protected String getExtension() {
		return "jsp";
	}

	protected String extractControllerFromName(String baseName) {
	baseName = lowerFirstCharacter(baseName);
	if (baseName.endsWith("Controller")) {
		return baseName.substring(0, baseName.lastIndexOf("Controller"));
	}
	return baseName;
	}

	private static String lowerFirstCharacter(String baseName) {
	return baseName.toLowerCase().substring(0, 1) + baseName.substring(1, baseName.length());
	}
}