/*
 * Copyright 2002-2018 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.security.test.context.support;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import reactor.core.publisher.Mono;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanNotOfRequiredTypeException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.userdetails.ReactiveUserDetailsService;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;

import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.verify;

@ExtendWith(MockitoExtension.class)
public class WithUserDetailsSecurityContextFactoryTests {

	@Mock
	private ReactiveUserDetailsService reactiveUserDetailsService;

	@Mock
	private UserDetailsService userDetailsService;

	@Mock
	private UserDetails userDetails;

	@Mock
	private BeanFactory beans;

	@Mock
	private WithUserDetails withUserDetails;

	private WithUserDetailsSecurityContextFactory factory;

	@BeforeEach
	public void setup() {
		this.factory = new WithUserDetailsSecurityContextFactory(this.beans);
	}

	@Test
	public void createSecurityContextNullValue() {
		assertThatIllegalArgumentException().isThrownBy(() -> this.factory.createSecurityContext(this.withUserDetails));
	}

	@Test
	public void createSecurityContextEmptyValue() {
		given(this.withUserDetails.value()).willReturn("");
		assertThatIllegalArgumentException().isThrownBy(() -> this.factory.createSecurityContext(this.withUserDetails));
	}

	@Test
	public void createSecurityContextWithExistingUser() {
		String username = "user";
		given(this.beans.getBean(ReactiveUserDetailsService.class)).willThrow(new NoSuchBeanDefinitionException(""));
		given(this.beans.getBean(UserDetailsService.class)).willReturn(this.userDetailsService);
		given(this.withUserDetails.value()).willReturn(username);
		given(this.userDetailsService.loadUserByUsername(username)).willReturn(this.userDetails);
		SecurityContext context = this.factory.createSecurityContext(this.withUserDetails);
		assertThat(context.getAuthentication()).isInstanceOf(UsernamePasswordAuthenticationToken.class);
		assertThat(context.getAuthentication().getPrincipal()).isEqualTo(this.userDetails);
		verify(this.beans).getBean(UserDetailsService.class);
	}

	// gh-3346
	@Test
	public void createSecurityContextWithUserDetailsServiceName() {
		String beanName = "secondUserDetailsServiceBean";
		String username = "user";
		given(this.beans.getBean(beanName, ReactiveUserDetailsService.class)).willThrow(
				new BeanNotOfRequiredTypeException("", ReactiveUserDetailsService.class, UserDetailsService.class));
		given(this.withUserDetails.value()).willReturn(username);
		given(this.withUserDetails.userDetailsServiceBeanName()).willReturn(beanName);
		given(this.userDetailsService.loadUserByUsername(username)).willReturn(this.userDetails);
		given(this.beans.getBean(beanName, UserDetailsService.class)).willReturn(this.userDetailsService);
		SecurityContext context = this.factory.createSecurityContext(this.withUserDetails);
		assertThat(context.getAuthentication()).isInstanceOf(UsernamePasswordAuthenticationToken.class);
		assertThat(context.getAuthentication().getPrincipal()).isEqualTo(this.userDetails);
		verify(this.beans).getBean(beanName, UserDetailsService.class);
	}

	@Test
	public void createSecurityContextWithReactiveUserDetailsService() {
		String username = "user";
		given(this.withUserDetails.value()).willReturn(username);
		given(this.beans.getBean(ReactiveUserDetailsService.class)).willReturn(this.reactiveUserDetailsService);
		given(this.reactiveUserDetailsService.findByUsername(username)).willReturn(Mono.just(this.userDetails));
		SecurityContext context = this.factory.createSecurityContext(this.withUserDetails);
		assertThat(context.getAuthentication()).isInstanceOf(UsernamePasswordAuthenticationToken.class);
		assertThat(context.getAuthentication().getPrincipal()).isEqualTo(this.userDetails);
		verify(this.beans).getBean(ReactiveUserDetailsService.class);
	}

	@Test
	public void createSecurityContextWithReactiveUserDetailsServiceAndBeanName() {
		String beanName = "secondUserDetailsServiceBean";
		String username = "user";
		given(this.withUserDetails.value()).willReturn(username);
		given(this.withUserDetails.userDetailsServiceBeanName()).willReturn(beanName);
		given(this.beans.getBean(beanName, ReactiveUserDetailsService.class))
				.willReturn(this.reactiveUserDetailsService);
		given(this.reactiveUserDetailsService.findByUsername(username)).willReturn(Mono.just(this.userDetails));
		SecurityContext context = this.factory.createSecurityContext(this.withUserDetails);
		assertThat(context.getAuthentication()).isInstanceOf(UsernamePasswordAuthenticationToken.class);
		assertThat(context.getAuthentication().getPrincipal()).isEqualTo(this.userDetails);
		verify(this.beans).getBean(beanName, ReactiveUserDetailsService.class);
	}

}
