/*
 * Copyright 2014-2023 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.restdocs.payload;

import java.io.IOException;

import org.junit.Test;

import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.restdocs.AbstractSnippetTests;
import org.springframework.restdocs.templates.TemplateEngine;
import org.springframework.restdocs.templates.TemplateFormat;
import org.springframework.restdocs.templates.TemplateResourceResolver;
import org.springframework.restdocs.templates.mustache.MustacheTemplateEngine;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.mock;
import static org.springframework.restdocs.payload.PayloadDocumentation.beneathPath;
import static org.springframework.restdocs.payload.PayloadDocumentation.requestPartBody;
import static org.springframework.restdocs.snippet.Attributes.attributes;
import static org.springframework.restdocs.snippet.Attributes.key;

/**
 * Tests for {@link RequestPartBodySnippet}.
 *
 * @author Andy Wilkinson
 */
public class RequestBodyPartSnippetTests extends AbstractSnippetTests {

	public RequestBodyPartSnippetTests(String name, TemplateFormat templateFormat) {
		super(name, templateFormat);
	}

	@Test
	public void requestPartWithBody() throws IOException {
		requestPartBody("one")
			.document(this.operationBuilder.request("http://localhost").part("one", "some content".getBytes()).build());
		assertThat(this.generatedSnippets.snippet("request-part-one-body"))
			.is(codeBlock(null, "nowrap").withContent("some content"));
	}

	@Test
	public void requestPartWithNoBody() throws IOException {
		requestPartBody("one")
			.document(this.operationBuilder.request("http://localhost").part("one", new byte[0]).build());
		assertThat(this.generatedSnippets.snippet("request-part-one-body"))
			.is(codeBlock(null, "nowrap").withContent(""));
	}

	@Test
	public void requestPartWithJsonMediaType() throws IOException {
		requestPartBody("one").document(this.operationBuilder.request("http://localhost")
			.part("one", "".getBytes())
			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
			.build());
		assertThat(this.generatedSnippets.snippet("request-part-one-body"))
			.is(codeBlock("json", "nowrap").withContent(""));
	}

	@Test
	public void requestPartWithJsonSubtypeMediaType() throws IOException {
		requestPartBody("one").document(this.operationBuilder.request("http://localhost")
			.part("one", "".getBytes())
			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_PROBLEM_JSON_VALUE)
			.build());
		assertThat(this.generatedSnippets.snippet("request-part-one-body"))
			.is(codeBlock("json", "nowrap").withContent(""));
	}

	@Test
	public void requestPartWithXmlMediaType() throws IOException {
		requestPartBody("one").document(this.operationBuilder.request("http://localhost")
			.part("one", "".getBytes())
			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_XML_VALUE)
			.build());
		assertThat(this.generatedSnippets.snippet("request-part-one-body"))
			.is(codeBlock("xml", "nowrap").withContent(""));
	}

	@Test
	public void requestPartWithXmlSubtypeMediaType() throws IOException {
		requestPartBody("one").document(this.operationBuilder.request("http://localhost")
			.part("one", "".getBytes())
			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_ATOM_XML_VALUE)
			.build());
		assertThat(this.generatedSnippets.snippet("request-part-one-body"))
			.is(codeBlock("xml", "nowrap").withContent(""));
	}

	@Test
	public void subsectionOfRequestPartBody() throws IOException {
		requestPartBody("one", beneathPath("a.b")).document(this.operationBuilder.request("http://localhost")
			.part("one", "{\"a\":{\"b\":{\"c\":5}}}".getBytes())
			.build());
		assertThat(this.generatedSnippets.snippet("request-part-one-body-beneath-a.b"))
			.is(codeBlock(null, "nowrap").withContent("{\"c\":5}"));
	}

	@Test
	public void customSnippetAttributes() throws IOException {
		TemplateResourceResolver resolver = mock(TemplateResourceResolver.class);
		given(resolver.resolveTemplateResource("request-part-body"))
			.willReturn(snippetResource("request-part-body-with-language"));
		requestPartBody("one", attributes(key("language").value("json"))).document(
				this.operationBuilder.attribute(TemplateEngine.class.getName(), new MustacheTemplateEngine(resolver))
					.request("http://localhost")
					.part("one", "{\"a\":\"alpha\"}".getBytes())
					.build());
		assertThat(this.generatedSnippets.snippet("request-part-one-body"))
			.is(codeBlock("json", "nowrap").withContent("{\"a\":\"alpha\"}"));
	}

}
