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// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
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package org.apache.juneau.rest.headers;

import static org.apache.juneau.http.HttpMethod.*;
import static org.junit.runners.MethodSorters.*;

import java.io.IOException;

import org.apache.juneau.*;
import org.apache.juneau.http.annotation.Body;
import org.apache.juneau.parser.*;
import org.apache.juneau.rest.*;
import org.apache.juneau.rest.annotation.*;
import org.apache.juneau.rest.mock2.*;
import org.junit.*;

@FixMethodOrder(NAME_ASCENDING)
public class ContentTypeTest {

	//=================================================================================================================
	// Setup classes
	//=================================================================================================================

	public static class DummyParser extends ReaderParser {
		String name;
		DummyParser(PropertyStore ps, String name, String...consumes) {
			super(ps, consumes);
			this.name = name;
		}
		@Override /* Parser */
		public ReaderParserSession createSession(ParserSessionArgs args) {
			return new ReaderParserSession(args) {
				@Override /* ParserSession */
				@SuppressWarnings("unchecked")
				protected <T> T doParse(ParserPipe pipe, ClassMeta<T> type) throws IOException, ParseException, ExecutableException {
					return (T)name;
				}
			};
		}
	}

	public static class P1 extends DummyParser { public P1(PropertyStore ps) {super(ps, "p1", "text/p1");}}
	public static class P2 extends DummyParser { public P2(PropertyStore ps) {super(ps, "p2", "text/p2");}}
	public static class P3 extends DummyParser { public P3(PropertyStore ps) {super(ps, "p3", "text/p3");}}

	//=================================================================================================================
	// Test that default Content-Type headers on servlet annotation are picked up.
	//=================================================================================================================

	@Rest(
		reqHeaders={" Content-Type : text/p2 "},
		parsers={P1.class,P2.class}
	)
	public static class A {
		@RestMethod(name=PUT)
		public String a01(@Body String in) {
			return in;
		}
	}
	private static MockRestClient a = MockRestClient.buildLax(A.class);

	@Test
	public void a01_defaultHeadersOnServletAnnotation_valid() throws Exception {
		a.put("/a01", null, "")
			.run()
			.assertBody().is("p2");
		a.put("/a01", null, "text/p1")
			.run()
			.assertBody().is("p1");
		a.put("/a01", null, "text/p2")
			.run()
			.assertBody().is("p2");
	}

	@Test
	public void a02_defaultHeadersOnServletAnnotation_invalid() throws Exception {
		a.put("/a01?noTrace=true", null, "text/p3")
			.run()
			.assertCode().is(415)
			.assertBody().contains("Unsupported media-type in request header 'Content-Type': 'text/p3'");
	}

	//=================================================================================================================
	// Test that default Content-Type headers on servlet annotation are picked up
	// when @RestMethod.parsers/serializers annotations are used.
	//=================================================================================================================

	@Rest(
		reqHeaders={" Content-Type : text/p2 "},
		parsers={P1.class,P2.class}
	)
	public static class B {
		@RestMethod(name=PUT, parsers=P3.class)
		public String b(@Body String in) {
			return in;
		}
	}
	private static MockRestClient b = MockRestClient.buildLax(B.class);

	@Test
	public void b01_restMethodWithParsersSerializers_valid() throws Exception {
		b.put("/b", null).contentType("text/p3").run().assertBody().is("p3");
	}

	@Test
	public void b02_restMethodWithParsersSerializers_invalid() throws Exception {
		b.put("/b?noTrace=true", null, "")
			.run()
			.assertCode().is(415)
			.assertBody().contains(
				"Unsupported media-type in request header 'Content-Type': 'text/p2'",
				"Supported media-types: ['text/p3']"
			);
		b.put("/b?noTrace=true", null, "text/p1")
			.run()
			.assertCode().is(415)
			.assertBody().contains(
				"Unsupported media-type in request header 'Content-Type': 'text/p1'",
				"Supported media-types: ['text/p3']"
			);
		b.put("/b?noTrace=true", null, "text/p2")
			.run()
			.assertCode().is(415)
			.assertBody().contains(
				"Unsupported media-type in request header 'Content-Type': 'text/p2'",
				"Supported media-types: ['text/p3']"
			);
	}

	//=================================================================================================================
	// Test that default Content-Type headers on servlet annotation are picked up
	// when @RestMethod.addParsers/addSerializers annotations are used.
	//=================================================================================================================

	@Rest(
		reqHeaders={" Content-Type : text/p2 "},
		parsers={P1.class,P2.class}
	)
	public static class C {
		@RestMethod(name=PUT, parsers={P3.class,Inherit.class})
		public String c(@Body String in) {
			return in;
		}
	}
	private static MockRestClient c = MockRestClient.buildLax(C.class);

	@Test
	public void c01_restMethodAddParsersSerializersInherit() throws Exception {
		c.put("/c", null, "").run().assertBody().is("p2");
		c.put("/c", null, "text/p1").run().assertBody().is("p1");
		c.put("/c", null, "text/p2").run().assertBody().is("p2");
		c.put("/c", null, "text/p3").run().assertBody().is("p3");
	}

	@Test
	public void c02_restMethodAddParsersSerializersInherit_invalid() throws Exception {
		c.put("/c?noTrace=true", null).contentType("text/p4")
			.run()
			.assertCode().is(415)
			.assertBody().contains(
				"Unsupported media-type in request header 'Content-Type': 'text/p4'",
				"Supported media-types: ['text/p3','text/p1','text/p2']"
			);
	}

	//=================================================================================================================
	// Test that default Content-Type headers on method annotation are picked up
	// when @RestMethod.parsers/serializers annotations are used.
	//=================================================================================================================

	@Rest(
		reqHeaders={" Content-Type : text/p2 "},
		parsers={P1.class,P2.class}
	)
	public static class E {
		@RestMethod(name=PUT, reqHeaders={"Content-Type: text/p3"}, parsers=P3.class)
		public String e(@Body String in) {
			return in;
		}
	}
	private static MockRestClient e = MockRestClient.buildLax(E.class);

	@Test
	public void e01_restMethodParserSerializerAnnotations_valid() throws Exception {
		e.put("/e", null, "")
			.run()
			.assertBody().is("p3");
		e.put("/e", null, "text/p3")
			.run()
			.assertBody().is("p3");
	}
	@Test
	public void e02_restMethodParserSerializerAnnotations_invalid() throws Exception {
		e.put("/e?noTrace=true", null, "text/p1")
			.run()
			.assertCode().is(415)
			.assertBody().contains(
				"Unsupported media-type in request header 'Content-Type': 'text/p1'",
				"Supported media-types: ['text/p3']"
			);
		e.put("/e?noTrace=true", null, "text/p2")
			.run()
			.assertCode().is(415)
			.assertBody().contains(
				"Unsupported media-type in request header 'Content-Type': 'text/p2'",
				"Supported media-types: ['text/p3']"
			);
	}

	//=================================================================================================================
	// Test that default Content-Type headers on method annotation are picked up
	// 	when @RestMethod.addParsers/addSerializers annotations are used.
	//=================================================================================================================

	@Rest(
		reqHeaders={" Content-Type : text/p2 "},
		parsers={P1.class,P2.class}
	)
	public static class F {
		@RestMethod(name=PUT, reqHeaders={"Content-Type: text/p3"}, parsers={Inherit.class,P3.class})
		public String f(@Body String in) {
			return in;
		}
	}

	private static MockRestClient f = MockRestClient.build(F.class);

	@Test
	public void f01_restMethodAddParsersSerializersAnnotations_valid() throws Exception {
		f.put("/f", null, "")
			.run()
			.assertBody().is("p3");
		f.put("/f", null, "text/p1")
			.run()
			.assertBody().is("p1");
		f.put("/f", null, "text/p2")
			.run()
			.assertBody().is("p2");
		f.put("/f", null, "text/p3")
			.run()
			.assertBody().is("p3");
	}
}