/*
 * ============LICENSE_START=======================================================
 * PNF-REGISTRATION-HANDLER
 * ================================================================================
 * Copyright (C) 2018 NOKIA Intellectual Property. 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.
 * ============LICENSE_END=========================================================
 */
package org.onap.dcaegen2.services.prh.configuration;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;


@EnableSwagger2
@Configuration
@Profile("prod")
public class SwaggerConfig extends WebMvcConfigurationSupport {

  private static final String PACKAGE_PATH = "org.onap.dcaegen2.services.prh";
  private static final String API_TITLE = "PRH app server";
  private static final String DESCRIPTION = "This page lists all the rest apis for PRH app server.";
  private static final String VERSION = "1.0";
  private static final String RESOURCES_PATH = "classpath:/META-INF/resources/";
  private static final String WEBJARS_PATH = RESOURCES_PATH + "webjars/";
  private static final String SWAGGER_UI = "swagger-ui.html";
  private static final String WEBJARS = "/webjars/**";

  @Bean
  public Docket api() {
    return new Docket(DocumentationType.SWAGGER_2)
        .apiInfo(apiInfo())
        .select()
        .apis(RequestHandlerSelectors.basePackage(PACKAGE_PATH))
        .paths(PathSelectors.any())
        .build();
  }

  private ApiInfo apiInfo() {
    return new ApiInfoBuilder()
        .title(API_TITLE)
        .description(DESCRIPTION)
        .version(VERSION)
        .build();
  }


  @Override
  protected void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler(SWAGGER_UI)
        .addResourceLocations(RESOURCES_PATH);

    registry.addResourceHandler(WEBJARS)
        .addResourceLocations(WEBJARS_PATH);
  }
}