/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You 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.apache.juneau.bean.openapi3;
  
  import static org.apache.juneau.TestUtils.*;
  import static org.apache.juneau.bean.openapi3.OpenApiBuilder.*;
  import static org.apache.juneau.commons.utils.CollectionUtils.*;
  import static org.apache.juneau.junit.bct.BctAssertions.*;
  import static org.junit.jupiter.api.Assertions.*;
  
  import java.net.*;
  
  import org.apache.juneau.*;
  import org.junit.jupiter.api.*;
  
  /**
   * Testcase for {@link OpenApi}.
   */
  class OpenApi_Test extends TestBase {
  
  	@Nested class A_basicTests extends TestBase {
  
  		private static final BeanTester<OpenApi> TESTER =
  			testBean(
  				bean()
  					.setComponents(components().setSchemas(map("a1", schemaInfo().setType("a2"))))
  					.setExternalDocs(externalDocumentation().setUrl(URI.create("b")))
  					.setInfo(info().setTitle("c1").setVersion("c2"))
  					.setOpenapi("3.0.0")
  					.setPaths(map("d1", pathItem().setGet(operation().setSummary("d2"))))
  					.setSecurity(l(securityRequirement().setRequirements(map("e1",l("e2")))))
  					.setServers(l(server().setUrl(URI.create("f"))))
  					.setTags(l(tag().setName("g")))
  			)
  			.props("components{schemas{a1{type}}},externalDocs{url},info{title,version},openapi,paths{d1{get{summary}}},security{0{requirements{e1}}},servers{0{url}},tags{0{name}}")
  			.vals("{{{a2}}},{b},{c1,c2},3.0.0,{{{d2}}},{{{[e2]}}},{{f}},{{g}}")
  			.json("{components:{schemas:{a1:{type:'a2'}}},externalDocs:{url:'b'},info:{title:'c1',version:'c2'},openapi:'3.0.0',paths:{d1:{get:{summary:'d2'}}},security:[{requirements:{e1:['e2']}}],servers:[{url:'f'}],tags:[{name:'g'}]}")
  			.string("{'components':{'schemas':{'a1':{'type':'a2'}}},'externalDocs':{'url':'b'},'info':{'title':'c1','version':'c2'},'openapi':'3.0.0','paths':{'d1':{'get':{'summary':'d2'}}},'security':[{'requirements':{'e1':['e2']}}],'servers':[{'url':'f'}],'tags':[{'name':'g'}]}".replace('\'','"'))
  		;
  
  		@Test void a01_gettersAndSetters() {
  			TESTER.assertGettersAndSetters();
  		}
  
  		@Test void a02_copy() {
  			TESTER.assertCopy();
  		}
  
  		@Test void a03_toJson() {
  			TESTER.assertToJson();
  		}
  
  		@Test void a04_fromJson() {
  			TESTER.assertFromJson();
  		}
  
  		@Test void a05_roundTrip() {
  			TESTER.assertRoundTrip();
  		}
  
  		@Test void a06_toString() {
  			TESTER.assertToString();
  		}
  
  		@Test void a07_keySet() {
  			assertList(TESTER.bean().keySet(), "components", "externalDocs", "info", "openapi", "paths", "security", "servers", "tags");
  		}
  
  		@Test void a08_nullParameters() {
  			var x = bean();
  			assertThrows(IllegalArgumentException.class, () -> x.get(null, String.class));
  			assertThrows(IllegalArgumentException.class, () -> x.set(null, "value"));
  		}
  
  		@Test void a09_addMethods() {
  			assertBean(
  				bean()
  					.addPath("/test", pathItem().setGet(operation().setSummary("a"))),
  				"paths{/test{get{summary}}}",
  				"{{{a}}}"
  			);
  
  			// Test addTags
  			var x1 = bean()
  				.addTags(tag("b1"), tag("b2"))
 				.addTags(l(tag("b3")));
 			assertBean(x1, "tags{#{name}}", "{[{b1},{b2},{b3}]}");
 
 			// Test addServers
 			var x2 = bean()
 				.addServers(server().setUrl(URI.create("http://c1.com")), server().setUrl(URI.create("http://c2.com")))
 				.addServers(l(server().setUrl(URI.create("http://c3.com"))));
 			assertBean(x2, "servers{#{url}}", "{[{http://c1.com},{http://c2.com},{http://c3.com}]}");
 
 			// Test addSecurity
 			var x3 = bean()
 				.addSecurity(securityRequirement().setRequirements(map("d1", l("d2"))))
 				.addSecurity(l(securityRequirement().setRequirements(map("d3", l("d4")))));
 			assertBean(x3, "security{#{requirements}}", "{[{{d1=[d2]}},{{d3=[d4]}}]}");
 		}
 
 		@Test void a09b_setTagsVarargs() {
 			// Test setTags(Tag...) varargs method to cover that code path
 			var x = bean().setTags(tag("t1"), tag("t2"), tag("t3"));
 			assertBean(x, "tags{#{name}}", "{[{t1},{t2},{t3}]}");
 		}
 
 		@Test void a10_asMap() {
 			assertBean(
 				bean()
 					.setInfo(info().setTitle("a1").setVersion("a2"))
 					.set("x1", "x1a")
 					.asMap(),
 				"info{title,version},openapi,x1",
 				"{a1,a2},3.0.0,x1a"
 			);
 		}
 
 		@Test void a11_extraKeys() {
 			var x = bean().set("x1", "x1a").set("x2", "x2a");
 			assertList(x.extraKeys(), "x1", "x2");
 			assertEmpty(bean().extraKeys());
 		}
 
 		@Test void a12_strictMode() {
 			assertThrows(RuntimeException.class, () -> bean().strict().set("foo", "bar"));
 			assertDoesNotThrow(() -> bean().set("foo", "bar"));
 
 			assertFalse(bean().isStrict());
 			assertTrue(bean().strict().isStrict());
 			assertFalse(bean().strict(false).isStrict());
 		}
 
 		@Test void a13_collectionSetters() {
 			var x = bean()
 				.setSecurity(l(securityRequirement().setRequirements(map("a1", l("a2"))), securityRequirement().setRequirements(map("b1", l("b2")))))
 				.setServers(l(server().setUrl(URI.create("http://example1.com")), server().setUrl(URI.create("http://example2.com"))))
 				.setTags(l(tag().setName("c1"), tag().setName("c2")));
 
 			assertBean(x,
 				"security{#{requirements}},servers{#{url}},tags{#{name}}",
 				"{[{{a1=[a2]}},{{b1=[b2]}}]},{[{http://example1.com},{http://example2.com}]},{[{c1},{c2}]}"
 			);
 		}
 
 		@Test void a14_addPath() {
 			// Test addPath method
 			var x = bean()
 				.addPath("/test", pathItem().setGet(operation().setSummary("Test operation")))
 				.addPath("/test2", pathItem().setPost(operation().setSummary("Test POST operation")));
 
 			assertBean(x,
 				"paths{/test{get{summary}},/test2{post{summary}}}",
 				"{{{Test operation}},{{Test POST operation}}}"
 			);
 
 			// Test addPath with null path (covers the null check branch)
 			assertThrows(IllegalArgumentException.class, () -> x.addPath(null, pathItem()));
 			assertThrows(IllegalArgumentException.class, () -> x.addPath("/test", null));
 		}
 	}
 
 	@Nested class B_emptyTests extends TestBase {
 
 		private static final BeanTester<OpenApi> TESTER =
 			testBean(bean())
 			.props("openapi,info,externalDocs,servers,tags,paths,components,security")
 			.vals("3.0.0,<null>,<null>,<null>,<null>,<null>,<null>,<null>")
 			.json("{openapi:'3.0.0'}")
 			.string("{\"openapi\":\"3.0.0\"}")
 		;
 
 		@Test void b01_gettersAndSetters() {
 			TESTER.assertGettersAndSetters();
 		}
 
 		@Test void b02_copy() {
 			TESTER.assertCopy();
 		}
 
 		@Test void b03_toJson() {
 			TESTER.assertToJson();
 		}
 
 		@Test void b04_fromJson() {
 			TESTER.assertFromJson();
 		}
 
 		@Test void b05_roundTrip() {
 			TESTER.assertRoundTrip();
 		}
 
 		@Test void b06_toString() {
 			TESTER.assertToString();
 		}
 
 		@Test void b07_keySet() {
 			assertList(TESTER.bean().keySet(), "openapi");
 		}
 
 		@Test void b08_keySet_infoNull() {
 			// Explicitly test keySet when info is null to cover that branch
 			var x = bean().setOpenapi("3.0.0"); // info is null
 			assertList(x.keySet(), "openapi");
 			assertFalse(x.keySet().contains("info"));
 		}
 	}
 
 	@Nested class C_extraProperties extends TestBase {
 		private static final BeanTester<OpenApi> TESTER =
 			testBean(
 				bean()
 					.set("components", components().setSchemas(map("a1", schemaInfo("a2"))))
 					.set("externalDocs", externalDocumentation().setUrl(URI.create("b")))
 					.set("info", info().setTitle("c").setVersion("d"))
 					.set("openapi", "e")
 					.set("paths", m("f1", pathItem().setGet(operation().setSummary("f2"))))
 					.set("security", l(securityRequirement().setRequirements(map("g1",l("g2")))))
 					.set("servers", l(server().setUrl(URI.create("h"))))
 					.set("tags", l(tag("i")))
 					.set("x1", "x1a")
 					.set("x2", null)
 			)
 			.props("components{schemas{a1{type}}},externalDocs{url},info{title,version},openapi,paths{f1{get{summary}}},security{#{requirements{g1{#{toString}}}}},servers{#{url}},tags{#{name}},x1,x2")
 			.vals("{{{a2}}},{b},{c,d},e,{{{f2}}},{[{{{[{g2}]}}}]},{[{h}]},{[{i}]},x1a,<null>")
 			.json("{components:{schemas:{a1:{type:'a2'}}},externalDocs:{url:'b'},info:{title:'c',version:'d'},openapi:'e',paths:{f1:{get:{summary:'f2'}}},security:[{requirements:{g1:['g2']}}],servers:[{url:'h'}],tags:[{name:'i'}],x1:'x1a'}")
 			.string("{'components':{'schemas':{'a1':{'type':'a2'}}},'externalDocs':{'url':'b'},'info':{'title':'c','version':'d'},'openapi':'e','paths':{'f1':{'get':{'summary':'f2'}}},'security':[{'requirements':{'g1':['g2']}}],'servers':[{'url':'h'}],'tags':[{'name':'i'}],'x1':'x1a'}".replace('\'', '"'))
 		;
 
 		@Test void c01_gettersAndSetters() {
 			TESTER.assertGettersAndSetters();
 		}
 
 		@Test void c02_copy() {
 			TESTER.assertCopy();
 		}
 
 		@Test void c03_toJson() {
 			TESTER.assertToJson();
 		}
 
 		@Test void c04_fromJson() {
 			TESTER.assertFromJson();
 		}
 
 		@Test void c05_roundTrip() {
 			TESTER.assertRoundTrip();
 		}
 
 		@Test void c06_toString() {
 			TESTER.assertToString();
 		}
 
 		@Test void c07_keySet() {
 			assertList(TESTER.bean().keySet(), "components", "externalDocs", "info", "openapi", "paths", "security", "servers", "tags", "x1", "x2");
 		}
 
 		@Test void c08_get() {
 			assertMapped(
 				TESTER.bean(), (obj,prop) -> obj.get(prop, Object.class),
 				"components{schemas{a1{type}}},externalDocs{url},info{title,version},openapi,paths{f1{get{summary}}},security{#{requirements{g1{#{toString}}}}},servers{#{url}},tags{#{name}},x1,x2",
 				"{{{a2}}},{b},{c,d},e,{{{f2}}},{[{{{[{g2}]}}}]},{[{h}]},{[{i}]},x1a,<null>"
 			);
 		}
 
 		@Test void c09_getTypes() {
 			assertMapped(
 				TESTER.bean(), (obj,prop) -> cns(obj.get(prop, Object.class)),
 				"components,externalDocs,info,openapi,paths,security,servers,tags,x1,x2",
 				"Components,ExternalDocumentation,Info,String,FilteredMap,ArrayList,ArrayList,ArrayList,String,<null>"
 			);
 		}
 
 		@Test void c10_nullPropertyValue() {
 			assertThrows(IllegalArgumentException.class, ()->bean().get(null));
 			assertThrows(IllegalArgumentException.class, ()->bean().get(null, String.class));
 			assertThrows(IllegalArgumentException.class, ()->bean().set(null, "a"));
 		}
 	}
 
 	@Nested class D_utilityMethods extends TestBase {
 
 		@Test void d01_findRef() {
 			var x = openApi()
 				.setComponents(components().setSchemas(map("a1", schemaInfo().setType("a2"))));
 
 			assertBean(
 				x.findRef("#/components/schemas/a1", SchemaInfo.class),
 				"type",
 				"a2"
 			);
 
 			assertNull(x.findRef("#/components/schemas/notfound", SchemaInfo.class));
 
 			assertThrows(IllegalArgumentException.class, () -> x.findRef(null, SchemaInfo.class));
 			assertThrows(IllegalArgumentException.class, () -> x.findRef("a", null));
 			assertThrows(IllegalArgumentException.class, () -> x.findRef("", SchemaInfo.class));
 			assertThrowsWithMessage(RuntimeException.class, "Unsupported reference:  'invalid'", () -> x.findRef("invalid", SchemaInfo.class));
 		}
 	}
 
 	//---------------------------------------------------------------------------------------------
 	// Helper methods
 	//---------------------------------------------------------------------------------------------
 
 	private static OpenApi bean() {
 		return openApi();
 	}
 }